Ball valve protection device for indicating switch position, ball valve and natural gas gathering and transportation station

Abstract

The utility model relates to the technical field of ball valves, in particular to a ball valve protection device for indicating the position of a switch, a ball valve and a natural gas gathering and transportation station, the ball valve protection device for indicating the position of the switch comprises an outer layer plate and an inner layer plate which are arranged at an interval, the inner layer plate can synchronously rotate along with the switch of the ball valve, the outer layer plate is provided with a through hole, and the inner layer plate is provided with a mark. The mark can be exposed through the through hole by rotating the inner-layer plate; the ball valve is provided with the ball valve protection device for indicating the position of the switch, the ball valve protection device for indicating the position of the switch is arranged above the ball valve cover plate or the ball valve switch, and the inner layer plate is fixedly connected with the ball valve cover plate or the ball valve switch; a natural gas gathering and transportation station adopts the ball valve. When the switch is rotated, the inner layer plate synchronously rotates along with the ball valve switch, the mark is exposed or hidden through the through hole, and then the position of the switch is known. Through the design, switch operation and switch position and state observation can be carried out without opening the protection device, and the protection effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of ball valves, in particular to a ball valve protection device for indicating a switch position, a ball valve and a natural gas gathering and transportation station. Background Art

[0002] During the natural gas transmission and distribution process, ball valves are often used as control valves for outbound transmission at natural gas gathering and transmission stations, especially at the inlets and outlets of key equipment. Currently, ball valves are mostly installed outdoors at these stations, so weather-related moisture can easily enter the valves, causing corrosion and deformation of the valve stems, leading to difficulty opening and closing the valves, or even failure. Furthermore, ball valves have short maintenance cycles, high maintenance frequency, and high maintenance costs per service.

[0003] In response to the above problems, the Chinese utility model patent with application publication number CN206918359U discloses a technical solution, in which connecting parts are sealed and welded at both ends of the valve body shell, and a number of connecting holes are evenly opened on the connecting parts. A fixing plate is welded on the connecting part at one end of the valve body shell, and a support plate is welded on the connecting part at the other end. A slot is provided on the upper end of the fixing plate, and a protective device is provided on the support plate. The protective device consists of two side plates symmetrically arranged front and back and a top cover, and the support plate and the protective device are connected by a rotating shaft.

[0004] This existing technology prevents the valve from leaking or rusting due to long-term exposure to sunlight and rain by setting a protective plate. However, the protective plate needs to be opened when operating the switch and observing the switch position, which is inconvenient and reduces production efficiency. Moreover, the protective plate is frequently opened during operation, which gives water vapor the opportunity to come into direct contact with the valve body, weakening the protective effect. Utility Model Content

[0005] The purpose of the invention of the utility model is to provide a ball valve protection device, a ball valve and a natural gas gathering and transportation station that indicate the switch position in order to solve the problems existing in the prior art, so that the switch operation can be performed and the switch position and status can be observed without opening the protection device.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A ball valve protection device for indicating the switch position includes an outer plate and an inner plate arranged at intervals. The inner plate can rotate synchronously with the ball valve switch. The outer plate is provided with a through hole and the inner plate is provided with a mark. Rotating the inner plate can make the mark appear through the through hole.

[0008] When the switch is turned, the inner plate rotates with it, and the markings on the inner plate are revealed or hidden through the through-holes as the switch rotates, thereby indicating the opening and closing range and position of the switch. This design allows the switch to be operated and the opening and closing range and position of the switch to be observed without opening the protective device, greatly reducing the number of times the protective device needs to be opened and improving the protective effect of the protective device on the ball valve.

[0009] As a preferred embodiment of the present invention, there is one through-hole, which is an arc-shaped hole centered at the center of the inner plate, or at least two through-holes, which are spaced apart along an arc centered at the center of the inner plate. When the inner plate rotates, the rotation path of the mark is an arc-shaped. This arrangement allows the through-hole to completely cover the movement path of the mark, ensuring that the revealed mark is complete and accurate.

[0010] As a preferred solution of the present invention, the number of marks is at least two, and the marks are arranged at intervals in a circular arc with the center point of the inner layer plate as the center. When rotating, ensure that the rotation path of the mark matches the shape or arrangement direction of the through hole, so that the mark is complete and accurately displayed.

[0011] As a preferred solution of the present invention, the through hole and the mark are located in concentric circles with the center point of the inner plate as the center and the same radius. By determining the relative positions of the through hole and the mark, the opening area is reduced and the probability of water vapor entering is reduced.

[0012] As a preferred solution of the present invention, the through hole includes a first through hole and a second through hole, the mark includes a first mark for indicating a fully open or fully closed state and a second mark indicating the switch amplitude, the first mark and the second mark correspond to the first through hole and the second through hole respectively, and the rotation of the inner layer plate can make the first mark and the second mark appear or hide, thereby distinguishing the amplitude and state of the switch.

[0013] As a preferred solution of the present invention, the number of second marks is at least two, and the markers can be partially or completely exposed through the second through holes as the inner plate rotates. By exposing different numbers of markers, the current rotation position of the switch can be known, and the amplitude of the switch opening can be further quantified.

[0014] As a preferred solution of the present invention, a transparent corrosion-resistant structural member is fixedly provided in the through hole, which facilitates observation while preventing pollutants from entering through the through hole, thereby further improving the protection effect.

[0015] As a preferred solution of the present invention, an extension portion is provided on the edge of the outer plate toward the inner plate, and the extension portion exceeds the lower edge of the inner plate. The extension portion can guide pollutants to prevent pollutants from flowing toward the inner plate or the ball valve, thereby enhancing the protection effect.

[0016] The utility model also discloses a ball valve, which is provided with the ball valve protection device indicating the switch position. The ball valve protection device indicating the switch position is arranged above the ball valve switch or the ball valve cover plate, and the inner layer plate is fixedly connected to the ball valve switch or the ball valve cover plate.

[0017] The utility model also discloses a natural gas gathering and transportation station, which adopts the ball valve.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0019] 1. This utility model employs an outer plate and an inner plate spaced apart, allowing the inner plate to rotate synchronously with the opening and closing of the ball valve. The outer plate is provided with a through-hole, and the inner plate is provided with a marking. When the switch is turned, the inner plate rotates with the switch, and the marking on the inner plate is revealed or hidden through the through-hole as the switch rotates, thereby indicating the opening and closing amplitude and position of the switch. This design allows the switch to be operated and the opening and closing amplitude and position of the switch to be observed without opening the protective device, greatly reducing the number of times the protective device needs to be opened and closed, and improving the protective effect of the protective device on the ball valve.

[0020] 2. The utility model enhances the corrosion resistance of the ball valve by arranging the device above the ball valve switch or the ball valve cover plate, and the inner plate is fixedly connected to the ball valve switch or the ball valve cover plate. During the operation of the ball valve switch, the position and status of the switch can be observed without opening the protective device, thereby improving production efficiency. At the same time, since the number of times the protective device is opened is reduced, the probability of the ball valve being corroded is reduced, and the maintenance cost is reduced.

[0021] 3. The utility model improves the safety of the natural gas gathering and transportation station by enabling the natural gas gathering and transportation station to adopt the ball valve, while reducing the number of times the ball valve needs to be replaced and lowering the operating cost of the natural gas gathering and transportation station. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a main schematic diagram of an embodiment provided by the present utility model.

[0023] Figure 2 This is a top view of an embodiment of the present invention when the switch is in a fully closed state.

[0024] Figure 3 This is a top view of an embodiment of the present invention when the switch is fully opened.

[0025] Figure 4 This is a top view of another embodiment provided by the present invention when the switch is in a fully closed state.

[0026] Figure 5This is a top view of another embodiment provided by the present invention when the switch is in a fully open state.

[0027] Markings in the figure: 1-outer plate; 2-inner plate; 3-extension portion; 11-through hole; 21-mark; 111-first through hole; 112-second through hole; 211-first mark; 212-second mark. DETAILED DESCRIPTION

[0028] The present invention will be described in detail below with reference to the accompanying drawings.

[0029] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] Example 1

[0031] As attached Figure 1-5 As shown, this embodiment provides a ball valve protection device that indicates the switch position, including an outer plate 1 and an inner plate 2. The inner plate 2 is arranged close to the ball valve cover plate or the ball valve switch, and the outer plate 1 is arranged away from the ball valve cover plate or the ball valve switch. The outer plate 1 and the inner plate 2 are arranged at intervals, that is, the outer plate 1 is close to the plate surface of the inner plate 2 and does not contact the plate surface of the inner plate 2. This can reduce the friction between the outer plate 1 and the inner plate 2, facilitating the rotation of the inner plate 2. The inner plate 2 can rotate synchronously with the ball valve switch, that is, when the ball valve switch rotates a certain amplitude, the inner plate 2 can rotate with the ball valve switch by the same amplitude. The outer plate 1 is provided with a through hole 11, and the inner plate 2 is provided with a mark 21. Rotating the inner plate 2 can make the mark 21 appear through the through hole 11.

[0032] When the ball valve switch is turned, the inner plate 2 rotates synchronously with the rotation of the switch. The mark 21 set on the inner plate 2 produces relative displacement with the through hole 11 set on the outer plate 1 as the inner plate 2 rotates. As the position of the mark 21 changes relative to the position of the through hole 11, the mark 21 can be completely hidden, partially exposed, or fully exposed through the through hole 11.

[0033] This design allows for switch operations and observation of the amplitude and position of the switch without opening the protective device, greatly reducing the number of times the protective device is opened and improving the protective effect of the protective device on the ball valve.

[0034] In one or several embodiments, the outer plate 1 and the inner plate 2 are generally flat plate structures, thereby facilitating the installation of the ball valve protection device.

[0035] In one or several embodiments, the outer plate 1 can be configured to be an arch with the center point as the protruding point descending toward the edge, thereby accelerating the movement of pollutants toward the edge of the outer plate, reducing the residence time of pollutants on the outer plate 1, and further improving the protection effect.

[0036] In one or more embodiments, the outer plate 1 and the inner plate 2 may be circular, so as to make the device edge smooth and improve the safety during operation. Of course, those skilled in the art may also use oval, square, etc. outer plate 1 and inner plate 2.

[0037] In one or more embodiments, the number of through-holes 11 is one, and the centerline of the through-hole 11 is in the shape of an arc, the center of which is the center point of the inner plate 2. That is, the through-hole 11 can be in the shape of a sector with an arc centerline, or in the shape of another special-shaped structure with an arc centerline.

[0038] In one or more embodiments, there are at least two through holes 11, which are spaced apart along a circular arc trajectory. That is, the through holes 11 are not connected to each other and are arranged one by one along a circular arc trajectory, the center of which is the center point of the inner layer plate 2. The circular arc trajectory is a virtual line, which can be a trajectory line formed by the center points of all through holes 11 or a trajectory line formed by corresponding edge points of all through holes 11.

[0039] When the inner plate 2 rotates, the rotation path of the mark 21 is an arc with the center point of the inner plate 2 as the center, which is the same as the shape or arrangement direction of the through hole 11, so that the mark 21 can be partially or completely exposed through the through hole 11.

[0040] This arrangement enables the through hole 11 to completely cover the moving path of the mark 21 , ensuring that the exposed mark 21 is complete and accurate.

[0041] In one or more embodiments, there are at least two marks 21, which are arranged at intervals along a circular arc trajectory. That is, the marks 21 are not connected to each other and are arranged one by one along a circular arc trajectory, the center of which is the center point of the inner layer plate 2. The circular arc trajectory is a virtual line, which can be a trajectory line formed by the center points of all marks 21 or a trajectory line formed by the corresponding edge points of all marks 21.

[0042] When the inner layer plate 2 rotates, the rotation path of the mark 21 is an arc with the center point of the inner layer plate 2 as the center, and the rotation path of each mark of the mark 21 is located in the same arc, which is the same as the shape or arrangement direction of the through hole 11. The mark 21 can be partially or completely revealed one by one through the through hole 11.

[0043] This arrangement ensures that the rotation path of the mark 21 matches the shape or arrangement direction of the through holes 11, so that the mark 21 is completely and accurately revealed.

[0044] In one or several embodiments, the through-hole 11 and the mark 21 are located on concentric circles with the same radius centered on the center point of the inner layer board, that is, the linear distances from the through-hole 11 and the mark 21 to the center point of the inner layer board 2 are equal. It can be that the linear distances from the center point of the through-hole 11, the center point of the mark 21, and the center point of the inner layer board 2 are equal, or it can be that the linear distances from the edge point of the through-hole 11, the edge point of the mark 21, and the center point of the inner layer board 2 are equal.

[0045] When the inner layer board 2 rotates, the radius of the arc where the rotation path of the mark 21 is located is equal to the radius of the arc where the through-hole 11 is located, and the mark 21 can be successively revealed partially or entirely through the through-hole 11.

[0046] Through this setting, the relative positions of the through-hole 11 and the mark 21 can be determined, the opening area can be reduced, and the probability of water vapor entering can be decreased.

[0047] In one or several embodiments, the through-hole 11 includes a first through-hole 111 and a second through-hole 112, and the mark 21 includes a first mark 211 and a second mark 212, where the first mark 211 is used to indicate the fully open or fully closed state, the second mark 212 is used to indicate the switching amplitude, the first mark 211 corresponds to the first through-hole 111, and the second mark 212 corresponds to the second through-hole 112.

[0048] In one or several embodiments, the mark for indicating the fully open state of the first mark 211 is the Chinese character "开" (open), and the mark for indicating the fully closed state of the first mark 211 is the Chinese character "关" (closed). Of course, those skilled in the art can also set the first mark 211 to any other shape or text for indicating the fully open and fully closed states.

[0049] When the inner layer board 2 rotates, the first mark 211 for indicating the fully open or fully closed state can be revealed or hidden through the first through-hole 111, and the second mark 212 for indicating the switching amplitude can be revealed or hidden through the second through-hole 112.

[0050] Through this setting, it is convenient to distinguish the amplitude and state of the switch.

[0051] In one or several embodiments, the number of the second marks 212 is at least two.

[0052] In one or several embodiments, the number of the marks 212 can be 7, so as to more precisely quantify the amplitude of the switch opening and improve the accuracy of the switch operation. Of course, those skilled in the art can also set the number of the marks 212 to any number such as 5, 10, etc.

[0053] When the inner layer board 2 rotates, the second mark 21 can be partially or entirely revealed through the second through-hole 112.

[0054] Through this setting, different numbers of second marks 212 can be revealed, so that the current position of the switch can be known, and the degree of opening of the switch can be further quantified.

[0055] In one or more embodiments, a transparent corrosion-resistant structural member is fixedly provided in the through hole 11, which facilitates observation while preventing contaminants from entering through the through hole, thereby further improving the protection effect. The transparent corrosion-resistant structural member can be a plastic member or a glass member.

[0056] In one or more embodiments, an extension portion 3 is provided on the edge of the outer plate 1 toward the inner plate 2, and the extension portion 3 exceeds the lower edge of the inner plate 2. Figure 1 As shown, the outer panel 1 is typically positioned above the inner panel 2, with the edge of the outer panel 1 extending downward to form an extension 3. The lowest point of the extension 3 is lower than the bottom surface of the inner panel 2, so that the lower edge of the inner panel 2 can be covered by the extension 3. The extension 3 is typically a flat plate structure and can be integrally formed with the outer panel 1 or fixed to the outer panel 1 (e.g., welded).

[0057] The extended portion 3 can guide the pollutants to prevent them from flowing toward the inner plate or the ball valve, thereby enhancing the protection effect.

[0058] In one or more embodiments, the angle between the outer plate 1 and the extension 3 may be chamfered to form an R, thereby making the connection between the outer plate 1 and the extension 3 smooth and improving safety during operation. Of course, those skilled in the art may also perform a C chamfer or a line chamfer on the angle between the outer plate 1 and the extension 3.

[0059] In one or more embodiments, the angle between the outer plate 1 and the extension 3 can be a right angle, thereby accelerating the sliding of pollutants from the edge of the outer plate 1 and further improving the protection effect. Of course, those skilled in the art can also set the angle between the outer plate 1 and the extension 3 to an acute angle or an obtuse angle.

[0060] Example 2

[0061] This embodiment provides a ball valve, which is provided with the ball valve protection device indicating the switch position. The ball valve protection device indicating the switch position is arranged above the ball valve switch or the ball valve cover plate, and the inner layer plate 2 is fixedly connected to the ball valve switch or the ball valve cover plate.

[0062] This setting can enhance the corrosion resistance of the ball valve, and the position and status of the switch can be observed without opening the protective device during the operation of the ball valve, thereby improving production efficiency. At the same time, since the number of times the protective device is opened is reduced, the chance of the ball valve being corroded is reduced, and maintenance costs are reduced.

[0063] Example 3

[0064] This embodiment also provides a natural gas gathering and transportation station, which adopts the above-mentioned ball valve.

[0065] This setting can improve the safety of the natural gas gathering and transportation station, while reducing the number of times the ball valve is replaced and lowering the operating cost of the natural gas gathering and transportation station.

[0066] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A ball valve protection device indicating the switch position, characterized in that: The invention comprises an outer plate (1) and an inner plate (2) which are arranged at intervals, wherein the inner plate (2) can rotate synchronously with the opening and closing of the ball valve, the outer plate (1) is provided with a through hole (11), and the inner plate (2) is provided with a mark (21), and the mark (21) can be exposed through the through hole (11) by rotating the inner plate (2).

2. The ball valve protection device for indicating the switch position according to claim 1, characterized in that: The number of the through hole (11) is one, and the through hole (11) is in the shape of a sector with the center point of the inner plate (2) as the center of the circle, or the number of the through holes (11) is at least two, and the through holes (11) are arranged at intervals along an arc with the center point of the inner plate (2) as the center of the circle.

3. The ball valve protection device for indicating the switch position according to claim 1, characterized in that: The number of the marks (21) is at least two, and the marks (21) are arranged at intervals in an arc with the center point of the inner plate (2) as the center.

4. The ball valve protection device for indicating the switch position according to claim 1, characterized in that: The through hole (11) and the mark (21) are located on concentric circles with the same radius and a center point of the inner layer plate (2).

5. The ball valve protection device for indicating the switch position according to claim 1, characterized in that: The through hole (11) includes a first through hole (111) and a second through hole (112); the mark (21) includes a first mark (211) for indicating a fully open or fully closed state and a second mark (212) for indicating a switching amplitude; the first mark (211) corresponds to the first through hole (111), and the second mark (212) corresponds to the second through hole (112).

6. The ball valve protection device for indicating the switch position according to claim 5, characterized in that: The number of the second marks (212) is at least two.

7. The ball valve protection device for indicating the switch position according to claim 1, characterized in that: The through hole (11) is fixedly provided with a transparent corrosion-resistant structural member.

8. The ball valve protection device for indicating the switch position according to claim 1, characterized in that: An extension portion (3) is provided on the edge of the outer plate (1) in a direction toward the inner plate (2), and the extension portion (3) exceeds the lower edge of the inner plate (2).

9. A ball valve, characterized in that: A ball valve protection device indicating a switch position as claimed in any one of claims 1 to 8 is provided, wherein the ball valve protection device indicating a switch position is arranged above the ball valve cover plate or the ball valve switch, and the inner plate (2) is fixedly connected to the ball valve cover plate or the ball valve switch.

10. A natural gas gathering and transportation station, characterized in that: A ball valve as claimed in claim 9 is used.

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