Right-angle type sea side ball valve

Abstract

The invention provides a right-angle type sea side ball valve, which belongs to the technical field of QT valves, and comprises a valve body, a ball body, a drain plug, a valve cover, a valve rod, a manual actuator, a valve seat assembly, a valve seat gland and a locking ring, the valve body and the valve deck are connected to form a pressure-bearing shell, the valve seat assembly is fixed to the valve body, and the ball is fixed by the valve body, the valve rod and the valve seat assembly. A fixed ball valve self-pressure sealing principle is adopted, a valve seat assembly obtains pre-tightening force at low pressure, and a valve seat on one side forms reliable sealing force under the action of medium pressure and the pre-tightening force at high pressure. The ball valve has the advantages of being small in flow resistance, low in noise, high in pressure resistance, small in operation torque, flexible in manual device installation and the like, a traditional sea side stop valve can be replaced, and the performance requirement of a new generation of QT equipment for the valve is met.

Description

Technical Field

[0001] The invention relates to the technical field of QT valves, and in particular to a right-angle sea-side ball valve. Background Art

[0002] With the continuous increase of QT equipment technology in my country's navy, the requirements for valve performance are increasing. Among them, ball valves are increasingly widely used in the field of QT valve technology. The principle of ball valves is generally divided into floating ball valves and fixed ball valves. Floating ball valves are common in low pressure and small diameter; fixed ball valves are common in high pressure and large diameter. According to the needs of different application occasions, they are classified from the flow channel type, and are divided into straight-through type, right-angle type (also known as L-type), T-type and other types.

[0003] Traditionally, sea-side valves are often stop valves, which have the advantages of simple structure and easy maintenance and replacement. However, sea-side stop valves still have some disadvantages: large operating torque, fixed handwheel installation, easy to interfere with other components; large flow resistance and corresponding noise when the valve is operated to open and close seawater; weak pressure resistance, not suitable for working conditions with high working pressure. Summary of the invention

[0004] According to the above technical problems that the conventional sea-going side valve has large operating torque, large noise, large flow resistance and easy interference with other components, a right-angle sea-going side ball valve is provided. The present invention improves the structural design of the valve core and the sleeve, realizes low friction and fast opening flow characteristics, improves the performance and reliability of the regulating valve, and meets the use requirements under special working conditions.

[0005] The technical means adopted by the present invention are as follows:

[0006] A right-angle sea-side ball valve, comprising: a valve body, a ball, a drain plug, a valve cover, a valve stem, a manual actuator, a valve seat assembly, a valve seat gland, and a locking ring:

[0007] The valve body and the valve cover are connected by fasteners to form an integral pressure-bearing shell;

[0008] The ball is fixedly installed in the pressure-bearing cavity formed by the valve body and the valve cover;

[0009] The valve seat assembly is installed in the valve body and fixed by the valve seat gland and the locking ring;

[0010] The drain plug is arranged on the valve body to prevent the deposition of debris.

[0011] Furthermore, the valve seat assembly includes a valve seat, a sealing ring and an O-ring, and the valve seat and the sealing ring are squeezed and fixed by a valve seat gland and a locking ring.

[0012] Furthermore, the valve adopts the self-pressure seal of the fixed ball valve, wherein:

[0013] Under low pressure conditions, the valve seat assembly forms an initial sealing force through threaded connection;

[0014] Under high-pressure conditions, the valve seat is pushed toward the ball under the combined action of the medium pressure and the initial preload force, thereby enhancing the sealing effect.

[0015] Furthermore, the manual actuator is connected to the ball via a valve stem, and the valve stem is provided with a flexible multi-directional installation interface, so that the manual actuator can be operated at multiple angles according to different installation conditions.

[0016] Furthermore, the inner surface of the valve body and the outer surface of the sphere are treated with an anti-corrosion and pressure-resistant coating to enhance the seawater corrosion resistance and pressure-bearing capacity of the valve.

[0017] Furthermore, a sewage discharge interface is provided at the bottom of the valve body for quickly draining accumulated water or impurities to prevent valve clogging.

[0018] Furthermore, the locking ring adopts a split structural design, which is easy to disassemble and repair, and the sealing performance of the valve seat assembly can be accurately adjusted by adjusting the pressing force of the locking ring.

[0019] Due to the adoption of the above technical solution, compared with the prior art, the present invention has the following advantages:

[0020] 1. The invention provides a right-angle sea-side ball valve. Compared with the traditional sea-side stop valve, the right-angle ball valve of the invention adopts a right-angle flow channel design, which effectively reduces the resistance of the medium when it flows through the valve. At the same time, since the fluid flow is more stable, the turbulence phenomenon is reduced and the noise during operation is reduced. This is particularly important for the naval equipment environment that requires quietness.

[0021] 2. The present invention provides a right-angle sea-going side ball valve, which adopts the self-pressure sealing principle of a fixed ball valve. Under initial low-pressure conditions, a pre-tightening force is applied through a threaded connection to ensure reliable low-pressure sealing. Under high-pressure conditions, the medium pressure further enhances the sealing effect. This design enables the ball valve to adapt to higher working pressures and meet the requirements of modern naval QT equipment for high pressure resistance.

[0022] 3. The invention provides a right-angle sea-side ball valve. Compared with the traditional stop valve, the ball valve is easier to operate, requires less torque, and is easy to switch quickly. At the same time, the installation method of the manual device is flexible, which can avoid interference with other components and improve the adaptability and installation efficiency of the equipment.

[0023] 4. The present invention provides a right-angle sea-going side ball valve, which is designed with a drain plug to effectively prevent debris from being deposited inside the valve body, reducing the risk of sealing failure or component damage due to dirt, thereby improving the durability of the valve and the convenience of maintenance.

[0024] Based on the above reasons, the present invention can be promoted in the field of QT valve technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 This is a schematic diagram of the structure of a right-angle sea-going side ball valve according to the present invention;

[0027] Figure 2 It is a cross-sectional view of a right-angle sea-going side ball valve MM described in the present invention;

[0028] Figure 3 The invention discloses a schematic structural diagram of a right-angle sea-going side ball valve seat assembly.

[0029] In the figure: 1. valve body; 2. ball; 3. drain plug; 4. valve cover; 5. valve stem; 6. manual actuator; 7. valve seat assembly; 8. valve seat cover; 9. locking ring; 10. valve seat; 11. O-ring; 12. sealing ring. DETAILED DESCRIPTION

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0031] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0033] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values ​​do not limit the scope of the present invention. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0035] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0036] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the present invention.

[0037] like Figures 1 to 3 As shown, the present invention provides a right-angle sea-side ball valve, comprising: a valve body 1, a ball 2, a drain plug 3, a valve cover 4, a valve stem 5, a manual actuator 6, a valve seat 10 assembly 7, a valve seat 10 gland 8, and a locking ring 9:

[0038] The valve body 1 and the valve cover 4 are connected by fasteners to form an integral pressure-bearing housing, ensuring that the valve can operate stably under high pressure conditions;

[0039] The ball 2 is fixed in the pressure-bearing cavity formed by the combination of the valve body 1 and the valve cover 4. It is fixed axially by the valve body 1 and the valve stem 5, and radially held by two sets of valve seat 10 components 7. This structural design allows the ball 2 to rotate flexibly to open and close the valve, while ensuring good sealing performance;

[0040] The valve seat 10 assembly 7 is installed in the valve body 1 and fixed by the valve seat 10 gland 8 and the locking ring 9;

[0041] The drain plug 3 is arranged on the valve body 1 to prevent debris from being deposited inside the valve body 1 and affecting the normal operation of the valve.

[0042] Furthermore, the manual actuator 6 drives the ball 2 to rotate through the valve stem 5; when the valve needs to be closed, the manual actuator 6 drives the valve stem 5 to rotate, so that the ball 2 rotates to the closed position. At this time, the valve seat 10 component 7 fits tightly with the ball 2 under the combined action of the medium pressure and the preload force to form a reliable seal. When the valve needs to be opened, the manual actuator 6 rotates the valve stem 5 in the opposite direction, and the ball 2 rotates to the open position, so that the medium can pass through the valve smoothly.

[0043] Furthermore, the valve seat 10 assembly 7 includes a valve seat 10, a sealing ring 12 and an O-ring 11. The valve seat 10 and the sealing ring 12 are squeezed and fixed by the valve seat 10 gland 8 and the locking ring 9 to ensure the stability and sealing of the valve seat 10 assembly 7 during operation.

[0044] Furthermore, the valve adopts the self-pressure seal of the fixed ball valve, wherein:

[0045] Under low-pressure working conditions, the valve seat 10 gland 8 and the locking ring 9 are connected to the valve body 1 through threads, squeezing the valve seat 10 assembly 7 to form an initial sealing force, thereby ensuring the reliability of the valve's low-pressure sealing;

[0046] Under high-pressure conditions, the valve seat 10 on one side is pushed toward the ball 2 under the combined action of the medium pressure and the preload force, forming a more reliable sealing force, and the higher the pressure, the better the sealing effect.

[0047] Furthermore, the manual actuator 6 is connected to the ball 2 via the valve stem 5, and the valve stem 5 is provided with a flexible multi-directional installation interface, so that the manual actuator 6 can be operated at multiple angles according to different installation conditions.

[0048] Furthermore, the inner surface of the valve body 1 and the outer surface of the ball 2 are treated with an anti-corrosion and pressure-resistant coating to enhance the seawater corrosion resistance and pressure-bearing capacity of the valve.

[0049] Furthermore, a sewage discharge interface is provided at the bottom of the valve body 1 for quickly draining accumulated water or impurities to prevent valve clogging.

[0050] Furthermore, the locking ring 9 adopts a split structure design, which is easy to disassemble and repair, and the sealing performance of the valve seat 10 assembly 7 can be accurately adjusted by adjusting the pressing force of the locking ring 9.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A right-angle sea-side ball valve, characterized in that: include: Valve body, ball, drain plug, valve cover, valve stem, manual actuator, valve seat assembly, valve seat gland, locking ring: The valve body and the valve cover are connected by fasteners to form an integral pressure-bearing shell; The ball is fixedly installed in the pressure-bearing cavity formed by the valve body and the valve cover; The valve seat assembly is installed in the valve body and fixed by the valve seat gland and the locking ring; The drain plug is arranged on the valve body to prevent the deposition of debris.

2. A right-angle sea-side ball valve according to claim 1, characterized in that: The valve seat assembly comprises a valve seat, a sealing ring and an O-ring, and the valve seat and the sealing ring are squeezed and fixed by a valve seat gland and a locking ring.

3. A right-angle sea-side ball valve according to claim 1, characterized in that: The valve adopts the self-pressure seal of the fixed ball valve, in which: Under low pressure conditions, the valve seat assembly forms an initial sealing force through threaded connection; Under high pressure conditions, the valve seat is pushed toward the ball under the combined action of the medium pressure and the initial preload force.

4. A right-angle sea-side ball valve according to claim 1, characterized in that: The manual actuator is connected to the ball through a valve stem, and the valve stem is provided with a flexible multi-directional installation interface, so that the manual actuator can be operated at multiple angles according to different installation conditions.

5. A right-angle sea-side ball valve according to claim 1, characterized in that: The inner surface of the valve body and the outer surface of the ball are treated with an anti-corrosion and pressure-resistant coating to enhance the seawater corrosion resistance and pressure-bearing capacity of the valve.

6. A right-angle sea-side ball valve according to any one of claims 1 to 5, characterized in that: A sewage discharge interface is provided at the bottom of the valve body for quickly draining accumulated water or impurities to prevent valve clogging.

7. A right-angle sea-side ball valve according to claim 6, characterized in that: The locking ring adopts a split structure design, which is easy to disassemble and repair, and the sealing performance of the valve seat assembly can be accurately adjusted by adjusting the pressing force of the locking ring.

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