Pressure testing tool for inclined valve and method of using the same

Abstract

The present invention relates to a pressure test tool for a bevel valve and a method for using the same. The pressure test tool comprises: a positioning assembly, the bottom of the positioning assembly is closed, the positioning assembly is used to support the bevel valve, the top of the positioning assembly is provided with a positioning bevel, the positioning bevel is used to match the bevel valve port of the bevel valve; a pressure plate, the pressure plate is used to close the end valve port of the bevel valve; a connecting assembly, the connecting assembly connects the positioning assembly and the pressure plate, the connecting assembly is used to drive the pressure plate to press against the end valve port. The installation of the bevel valve can be matched with the positioning bevel, the bevel valve port of the bevel valve can be sealed by the positioning assembly, and the end valve port of the bevel valve can be sealed in combination with the pressure plate, thereby achieving the closure of the two valve ports of the bevel valve and meeting the pressure test of the valve. The connecting assembly can drive the pressure plate to press the end valve port, thereby preventing the pressure plate from detaching due to high pressure during the pressure test.

Description

Technical Field

[0001] The present invention relates to the field of valve body testing, and in particular to a pressure testing tool for an inclined valve and a use method thereof. Background Art

[0002] Currently, valves are pressure-tested to verify the sealing performance of the valve body. This involves securing the valve and sealing the valve port. The valve is then filled with a pressure-testing medium to measure its performance under the relevant pressure conditions.

[0003] In the related art, a sloped valve is designed to adapt to the shape of the hull. A valve port of the sloped valve is provided on a slope, and the valve port is provided as a slope so as to be better fixed on the hull.

[0004] However, since the valve port needs to be sealed during the pressure test, and the inclined valve has an inclined valve port, it is difficult to seal the inclined valve with existing tooling. Summary of the Invention

[0005] The embodiment of the present invention provides a pressure testing tool for an inclined surface valve and a method for using the same, so as to solve the problem in the related art that the existing tool is difficult to meet the pressure testing requirements of the inclined surface valve.

[0006] In a first aspect, a pressure testing tool for a sloped valve is provided, the pressure testing tool comprising: a positioning assembly, the bottom of the positioning assembly is closed, the positioning assembly is used to support the sloped valve, the top of the positioning assembly is provided with a positioning slope, the positioning slope is used to match the sloped valve port of the sloped valve; a pressure plate, the pressure plate is used to close the end valve port of the sloped valve; a connecting assembly, the connecting assembly connects the positioning assembly and the pressure plate, the connecting assembly is used to drive the pressure plate to press against the end valve port.

[0007] In some embodiments, the positioning assembly includes a base plate and an inclined cylinder, the inclined cylinder is detachably mounted on the base plate, the base plate closes the bottom of the inclined cylinder, and the positioning inclined surface is arranged on the top surface of the inclined cylinder.

[0008] In some embodiments, the pressure testing tool also includes a limiter, which is fixed to the base plate, and the inclined cylinder is sleeved outside the limiter. The upper surface of the limiter is higher than the upper surface of the inclined cylinder, and the top of the limiter is used to insert into the inclined valve port and embed into the bottom of the inclined valve.

[0009] In some embodiments, a guide angle is provided on the top of the limiting body.

[0010] In some embodiments, the pressing plate is parallel to the bottom plate, one end of the connecting rod is vertically inserted into the bottom plate, and the other end of the connecting rod is vertically inserted into the pressing plate.

[0011] In some embodiments, the bottom plate is provided with a first groove at a connection between the bottom plate and the oblique cylinder. A second sealing unit is installed in the first groove. The second sealing unit is used to seal the connection between the oblique cylinder and the bottom plate.

[0012] In some embodiments, the connecting assembly includes a connecting rod and an adjusting nut, one end of the connecting rod is installed on the base plate, and the other end of the connecting rod passes through the pressure plate and is threadedly connected to the adjusting nut. Rotating the adjusting nut can drive the pressure plate to move toward the side closer to the base plate.

[0013] In some embodiments, the pressure test tool further includes a first sealing unit, which is disposed on the positioning inclined surface and is used to seal the inclined surface valve port.

[0014] In some embodiments, the pressure plate is provided with a second groove, a third sealing unit is installed in the second groove, and the third sealing unit is used to seal the connection between the pressure plate and the end face valve port.

[0015] On the second aspect, a method for using a pressure testing tool for a sloped valve is provided, comprising the following steps: supporting the sloped valve above a positioning assembly with a closed bottom, wherein the sloped valve port is correspondingly arranged above the positioning slope; closing the end face valve port with a pressure plate; connecting the positioning assembly and the pressure plate with a connecting assembly, and driving the pressure plate to press against the end face valve port through the connecting assembly; filling the sloped valve port with a pressure testing medium to perform a valve pressure test.

[0016] The beneficial effects brought about by the technical solution provided by the present invention include:

[0017] The embodiment of the present invention provides a pressure test fixture for a bevel valve and a method for using the same. Because the positioning assembly is provided with a positioning bevel, it can match the bevel valve port of the bevel valve, achieving sealing at the bevel valve port. The end valve port of the bevel valve is sealed by a pressure plate, thereby achieving closure of both valve ports of the bevel valve. The positioning assembly is connected to the pressure plate via a connecting assembly, and the pressure plate is driven to press against the end valve port, making the pressure plate more securely fixed and preventing it from detaching due to high pressure during the pressure test. Therefore, the bevel valve is fixed and a pressure test of the bevel valve can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0019] Figure 1 A schematic cross-sectional view of the installation of a sloped valve on a pressure testing fixture according to an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the explosion structure of the pressure test tooling provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of a top view of the bottom plate provided in an embodiment of the present invention;

[0022] Figure 4 A bottom view schematic diagram of the pressing plate provided in an embodiment of the present invention;

[0023] Figure 5 A schematic cross-sectional view of a position limiting body according to an embodiment of the present invention;

[0024] Figure 6 for Figure 5 Schematic diagram of the local structure at point A;

[0025] Figure 7 A schematic structural diagram of a connecting rod provided in an embodiment of the present invention;

[0026] Figure 8 This is a schematic cross-sectional structural diagram of an inclined cylinder provided in an embodiment of the present invention.

[0027] In the picture:

[0028] 1. Positioning assembly; 11. Bottom plate; 111. First groove; 12. Inclined cylinder; 121. Positioning inclined surface;

[0029] 2. Connecting assembly; 21. Connecting rod; 211. Threaded end; 22. Adjusting nut;

[0030] 3. Pressing plate; 31. Second groove;

[0031] 4. Limiting body; 41. Guide angle; 42. Third groove;

[0032] 5. First sealing unit; 6. Second sealing unit; 7. Third sealing unit; 8. Fourth sealing unit;

[0033] 9. Bevel valve; 91. Bevel valve port; 92. End valve port. DETAILED DESCRIPTION

[0034] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0035] The embodiment of the present invention provides a pressure testing tool for a sloped surface valve and a method for using the same, which can solve the problem that the prior art cannot meet the pressure testing requirements of the sloped surface valve.

[0036] See also Figure 1 and Figure 2 The figure shows a pressure testing tool for a bevel valve provided by an embodiment of the present invention, which includes: a positioning assembly 1, the bottom of which is closed and used to support a bevel valve 9. The top of the positioning assembly 1 is provided with a positioning bevel 121, and the positioning bevel 121 is used to match the bevel valve port 91 of the bevel valve 9; a pressure plate 3, which is used to close the end valve port 92 of the bevel valve 9; and a connecting assembly 2, which connects the positioning assembly 1 and the pressure plate 3 and is used to drive the pressure plate 3 to press against the end valve port 92. In other words, the bevel valve port 91 of the bevel valve 9 is supported by the positioning assembly 1. The bottom of the positioning assembly 1 is sealed to prevent the pressure test medium from leaking from the bottom of the bevel valve port 91 during the pressure test, thereby preventing the pressure test from being carried out. The pressure plate 3 is provided on the top of the end valve port 92 to close the end valve port 92, which can prevent the pressure test medium from leaking from the end valve port 92. The connecting assembly 2 is used to press the pressure plate 3 against the end face valve port 92, thereby improving the airtightness of the pressure test fixture. The connecting assembly 2 can be driven by the connecting rod 21 and the adjusting nut 22 in this embodiment. In other embodiments, the connecting assembly 2 can also be a telescopic cylinder, the movement of which presses the pressure plate 3 against the end face valve port 92. The connecting assembly 2 can also be a vertically movable slider, the movement of which drives the pressure plate 3 to press against the end face valve port 92. The specific structure of the connecting assembly 2 is not limited here, as long as it can achieve the function of driving the pressure plate 3 to press the end face valve port 92.

[0037] See also Figure 1 、 Figure 2 and Figure 8As shown, preferably, the positioning assembly 1 includes a base plate 11 and an inclined cylinder 12, wherein the inclined cylinder 12 is detachably mounted on the base plate 11, the base plate 11 closes the bottom of the inclined cylinder 12, and the positioning bevel 121 is provided on the top surface of the inclined cylinder 12. In other words, the inclined valve port 91 of the inclined valve 9 is matched with the positioning bevel 121 of the inclined cylinder 12. Since the inclined cylinder 12 is detachably mounted on the base plate 11, the positioning bevel 121 of the inclined cylinder 12 with a suitable angle can be selected by replacing inclined cylinders 12 of different specifications, thereby matching inclined valves 9 with different inclination angles. In this embodiment, a limiting body 4 is provided on the base plate 11, and the fixing of the inclined cylinder 12 is achieved by sleeve-mounting the inclined cylinder 12 outside the limiting body 4. In other embodiments, the inclined cylinder 12 can also be detachably mounted on the base plate 11 by bolt connection or clamping.

[0038] See also Figure 1 and Figure 2 As shown, preferably, the pressure test fixture further includes a limiter 4, which is fixed to the base plate 11, and the inclined cylinder 12 is sleeved outside the limiter 4. The upper surface of the limiter 4 is higher than the upper surface of the inclined cylinder 12, and the top of the limiter 4 is used to insert the inclined valve port 91 and embed into the bottom of the inclined valve 9. In other words, the limiter 4 fixed to the base plate 11 limits the inclined cylinder 12 and the inclined valve 9, thereby preventing the inclined valve 9 from being misaligned with the inclined cylinder 12 during the pressure test. In this embodiment, the limiter 4 is inserted into the inclined cylinder 12 and the inclined valve port 91 to achieve the limit of the inclined cylinder 12 and the inclined valve 9. In other embodiments, the inner diameter of the limiter 4 can be set to match the outer diameter of the inclined valve port 91, and the inclined cylinder 12 and the inclined valve 9 can be inserted into the limiter 4 in sequence to achieve the limit of the inclined cylinder 12 and the inclined valve 9.

[0039] See also Figure 1 、 Figure 5 and Figure 6 As shown, preferably, a guide angle 41 is provided on the top of the limiting body 4. That is to say, the guide angle 41 on the top of the limiting body 4 can guide the inclined cylinder 12 or the inclined valve 9 when it is sleeved on the limiting body 4. This facilitates the installation of the inclined cylinder 12 and the inclined valve 9. In this embodiment, a third groove 42 is provided on the top side of the limiting body 4, and a fourth sealing unit 8 is embedded in the third groove 42. The inner wall of the inclined valve 9 and the outer wall of the limiting body 4 are sealed by the fourth sealing unit 8. This prevents the pressure test medium from leaking from the inner wall of the inclined valve 9 along the outer wall of the limiting body 4.

[0040] See also Figure 1 and Figure 2As shown, preferably, the pressing plate 3 is parallel to the bottom plate 11, one end of the connecting rod 21 is vertically inserted into the bottom plate 11, and the other end of the connecting rod 21 is vertically inserted into the pressing plate 3. The pressing plate 3 can be parallel to the bottom plate 11 after the inclined valve 9 is installed by adjusting the inclination angle of the positioning inclined surface 121. Since the pressing plate 3 is parallel to the bottom plate 11, the pressing plate 3 can be pressed against the end valve port by setting a force perpendicular to the pressing plate 3. The two ends of the connecting rod 21 are respectively perpendicular to the bottom plate 11 and the pressing plate 3. When the connecting rod 21 presses the pressing plate 3, it is subjected to axial force to avoid shearing due to shear force.

[0041] See also Figure 1 and Figure 4 As shown, preferably, the base plate 11 is provided with a first groove 111 at the connection with the oblique cylinder 12. A second sealing unit 6 is installed in the first groove 111. The second sealing unit 6 is used to seal the connection between the oblique cylinder 12 and the base plate 11. In other words, the bottom of the oblique cylinder 12 is sealed by the second sealing unit 6 to prevent the pressure test medium from leaking through the gap at the connection between the oblique cylinder 12 and the base plate 11 during the pressure test. The provision of the first groove 111 on the base plate 11 to limit the second sealing unit 6 facilitates the installation of the second sealing unit 6 and prevents the second sealing unit 6 from being misaligned during the pressure test.

[0042] See also Figure 1 、 Figure 2 as well as Figure 7 As shown, the connecting assembly 2 preferably includes a connecting rod 21 and an adjusting nut 22. One end of the connecting rod 21 is mounted on the base plate 11, and the other end passes through the pressure plate 3 and is threadedly connected to the adjusting nut 22. Rotating the adjusting nut 22 drives the pressure plate 3 toward the side closer to the base plate 11. In other words, rotating the adjusting nut 22 causes the adjusting nut 22 to move axially along the connecting rod 21, and the movement of the adjusting nut 22 drives the pressure plate 3 downward to press the end face valve port 92. In this embodiment, threaded ends 211 are provided at both ends of the connecting rod, where the length of the threaded ends 211 is greater than 1.5 times the thread pitch. The threaded ends 211 are threadedly connected to the adjusting nut 22. The bottom end of the connecting rod 21, which passes downward through the base plate 11, is also threadedly connected to the adjusting nut 22 to prevent the connecting rod 21 from detaching from the base plate 11 when the upper adjusting nut 22 is rotated. In this embodiment, the connecting assembly 2 includes multiple parallel connecting rods 21, which are used to circumferentially compress the pressure plate 3. This is to prevent a certain area of the pressure plate 3 from tilting due to insufficient pressing force during the pressure test, thereby failing to achieve the expected sealing effect.

[0043] See also Figure 1As shown, the pressure test fixture preferably further includes a first sealing unit 5, which is disposed on the positioning bevel 121 and is used to seal the bevel valve port 91. In other words, to improve sealing during the pressure test, the first sealing unit 5 is disposed on the positioning bevel 121 to seal the bevel valve port 91. This prevents leakage of the pressure test medium from the connection between the positioning bevel 121 and the bevel valve port 91 during the pressure test.

[0044] See also Figure 1 and Figure 4 As shown, preferably, the pressure plate 3 is provided with a second groove 31, and a third sealing unit 7 is installed in the second groove 31, and the third sealing unit 7 is used to seal the connection between the pressure plate 3 and the end valve port 92. That is to say, in order to prevent the pressure test medium from leaking from the connection between the end valve port 92 and the pressure plate 3, a second groove 31 is provided at the bottom of the pressure plate 3, and a third sealing unit 7 is provided in the second groove 31 to achieve sealing. Among them, the pressure plate 3 can be disassembled from the connecting rod 21. During the installation of the bevel valve 9, the pressure plate 3 can be removed first to facilitate the installation of the bevel valve 9, and then the pressure plate 3 can be installed on the connecting rod 21 to close the end valve port 92 of the bevel valve 9. In this embodiment, the axis of the bevel valve port 91 of the bevel valve 9 is staggered relative to the axis of the end valve port 92. See Figure 1 、 Figure 3 and Figure 4 As shown, in order to ensure the sealing of the inclined valve port 91 and the end valve port 92 at the same time, the second groove 31 is eccentric relative to the first groove 111.

[0045] An embodiment of the present invention also provides a method for using a pressure testing tool for a bevel valve, comprising the following steps: supporting a bevel valve 9 above a bottom-sealed positioning assembly 1, wherein the bevel valve opening 91 is correspondingly positioned above the positioning bevel 121; placing a pressure plate 3 to seal above the end valve opening 92; connecting the positioning assembly 1 and the pressure plate 3 with a connecting assembly 2, and driving the pressure plate 3 to press against the end valve opening 92 via the connecting assembly 2; filling the bevel valve 9 with a pressure testing medium and performing a valve pressure test. The positioning assembly 1 with the positioning bevel 121 ensures sealing and support of the bevel valve 9 at the bevel valve opening 91. The pressure plate 3 compresses the end valve opening 92, sealing the other end of the bevel valve 9 and achieving sealing of the valve opening. This allows for secure positioning of the bevel valve 9, facilitating pressure testing of the bevel valve 9 using conventional instruments. Finally, the bevel valve 9 is filled with a pressure testing medium and the valve pressure test is performed.

[0046] The principles of a pressure testing tool for a sloped valve and its use method provided in an embodiment of the present invention are as follows:

[0047] The positioning assembly 1 provided with a positioning bevel 121 can assist in sealing the bevel valve 9 at the bevel valve port 91 end, and the pressure plate 3 can be used to seal the end valve port 92 of the bevel valve 9. In combination with the connecting assembly 2 connecting the pressure plate 3 and the positioning assembly 1, the connecting assembly 2 drives the pressure plate 3 to press the end valve port 92 to achieve the tightening of the bevel valve 9, thereby achieving the fixation of the bevel valve 9 and the closure of the valve port.

[0048] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper" and "lower" is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0049] It should be noted that, in the present invention, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0050] The foregoing description is intended only to provide specific embodiments of the present invention, which will enable those skilled in the art to understand and implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not intended to be limited to the embodiments shown herein, but is intended to be accorded the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A pressure test fixture for a bevel valve, comprising: A positioning assembly (1), the bottom of the positioning assembly (1) is closed, the positioning assembly (1) is used to support the inclined valve (9), the top of the positioning assembly (1) is provided with a positioning inclined surface (121), and the positioning inclined surface (121) is used to match the inclined valve port (91) of the inclined valve (9); A pressure plate (3), the pressure plate (3) being used to close the end valve port (92) of the inclined valve (9); A connecting assembly (2), the connecting assembly (2) connecting the positioning assembly (1) and the pressure plate (3), the connecting assembly (2) being used to drive the pressure plate (3) to press against the end face valve port (92); The positioning assembly (1) comprises a bottom plate (11) and an inclined cylinder (12), wherein the inclined cylinder (12) is detachably mounted on the bottom plate (11), the bottom plate (11) closes the bottom of the inclined cylinder (12), and the positioning inclined surface (121) is provided on the top surface of the inclined cylinder (12); The pressure test fixture further comprises a limiter (4), the limiter (4) being fixed to the bottom plate (11), the inclined cylinder (12) being sleeved outside the limiter (4), the upper surface of the limiter (4) being higher than the upper surface of the inclined cylinder (12), and the top of the limiter (4) being used to be inserted into the inclined valve port (91) and embedded in the bottom of the inclined valve (9); The pressure test fixture further comprises a first sealing unit (5), the first sealing unit (5) being arranged on the positioning inclined surface (121), and the first sealing unit (5) being used for sealing the inclined surface valve port (91).

2. The pressure testing tool for the inclined valve according to claim 1, characterized in that: A guide angle (41) is provided on the top of the limiting body (4).

3. The pressure testing tool for the inclined valve according to claim 1, characterized in that: The connecting assembly (2) includes a connecting rod (21) and an adjusting nut (22), one end of the connecting rod (21) is mounted on the base plate (11), and the other end of the connecting rod (21) passes through the pressure plate (3) and is threadedly connected to the adjusting nut (22), and the adjusting nut (22) is rotated to drive the pressure plate (3) to move toward a side close to the base plate (11).

4. The pressure testing tool for the inclined valve according to claim 3, characterized in that: The pressing plate (3) is parallel to the bottom plate (11), one end of the connecting rod (21) is vertically inserted into the bottom plate (11), and the other end of the connecting rod (21) is vertically inserted into the pressing plate (3).

5. The pressure testing tool for the inclined valve according to claim 1, characterized in that: The bottom plate (11) is provided with a first groove (111) at a connection with the oblique cylinder (12), a second sealing unit (6) being installed in the first groove (111), and the second sealing unit (6) is used to seal the connection between the oblique cylinder (12) and the bottom plate (11).

6. The pressure testing tool for the inclined valve according to claim 1, characterized in that: The pressure plate (3) is provided with a second groove (31), a third sealing unit (7) is installed in the second groove (31), and the third sealing unit (7) is used to seal the connection between the pressure plate (3) and the end face valve port (92).

7. A method for using a pressure test tool for a bevel valve, characterized in that: Using the pressure testing tool as claimed in claim 1, comprising the following steps: The inclined valve (9) is supported above the bottom-closed positioning assembly (1), wherein the inclined valve port (91) is correspondingly arranged above the positioning inclined surface (121); The pressure plate (3) is closed above the end valve port (92); Connecting the connecting assembly (2) to the positioning assembly (1) and the pressing plate (3), and driving the pressing plate (3) to press against the end face valve port (92) through the connecting assembly (2); Fill the inclined valve port (9) with the pressure test medium and perform the valve pressure test.

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