A high-pressure level gauge with quick glass tube replacement

Abstract

This utility model discloses a high-pressure level gauge with a quickly replaceable glass tube. Its self-closing valve assembly includes a self-closing valve body, a knob on the valve body, and a self-closing valve pin disposed inside the valve body via a second elastic element. Its flange assembly includes a first lateral flange and a second lateral flange connected to each other, with interconnected channels inside the first and second lateral flanges. A first sealing ring is connected to the self-closing valve body, passing through a through hole. One end of the first elastic element is fixedly connected to the first sealing ring, and the other end abuts against the end face of the self-closing valve pin. In its initial state, there is a gap between the first sealing ring and the self-closing valve pin. A glass tube assembly is detachably disposed between the upper and lower ends of the gauge and the second lateral flange. This utility model provides a high-pressure level gauge with a quickly replaceable glass tube, reducing maintenance time and allowing for online replacement of the glass tube assembly without affecting the operation of other equipment.

Description

Technical Field

[0001] This utility model relates to the field of liquid level gauge technology, and in particular to a high-pressure liquid level gauge that can quickly replace the glass tube. Background Technology

[0002] A glass tube level gauge is a device used to measure the level of liquid in a container or pipeline. Its main components are self-closing valves at both ends and a glass tube placed between the valves. The glass tube is fixed between the two self-closing valves by a sleeve and a sealing ring. The upper and lower self-closing valves and the sleeve firmly restrict the glass tube, requiring the entire glass tube level gauge to be disassembled for maintenance and replacement. This disassembly and assembly is complex and time-consuming, especially in special environments such as high pressure and high temperature conditions, where it is necessary to minimize personnel time spent working. Therefore, a level gauge that can be quickly disassembled and assembled is needed to solve this problem. Utility Model Content

[0003] In view of this, the present invention proposes a high-pressure liquid level gauge that can quickly replace the glass tube.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A high-pressure level gauge with a quickly replaceable glass tube includes:

[0006] The self-closing valve assembly includes a self-closing valve body, a knob detachably mounted on the self-closing valve body, and a self-closing valve pin mounted inside the self-closing valve body via a second elastic element. The upper and lower ends of the self-closing valve body are respectively provided with through holes.

[0007] A flange assembly, comprising a first lateral flange and a second lateral flange that are detachably connected to each other, wherein the internal channels of the first lateral flange and the second lateral flange are interconnected.

[0008] The first sealing ring is placed in the channel of the first lateral flange. The first sealing ring and the self-closing valve body are detachably connected. The first sealing ring has a central hole in the vertical direction. The first sealing ring passes through the through hole. One end of the first elastic member is fixedly connected to the first sealing ring, and the other end abuts against the end face of the self-closing valve pin. The first elastic member is in its initial state. There is a gap between the first sealing ring and the self-closing valve pin.

[0009] A glass tube assembly is detachably provided between the upper and lower second lateral flanges, and the interior of the second lateral flange is connected to the interior of the glass tube assembly.

[0010] Furthermore, the first elastic element is a first compression spring; the second elastic element is a second compression spring;

[0011] One end of the second compression spring is fixedly connected to the valve body of the self-closing valve, and the other end is fixedly connected to the pin of the self-closing valve.

[0012] Furthermore, the end face of the first sealing ring near the self-closing valve pin and the end face of the self-closing valve pin and the first sealing ring that abut against each other are mutually cooperating arc surfaces.

[0013] Furthermore, a knob is threadedly connected to the valve body of the self-closing valve;

[0014] A sealing ring is provided on the end face of the self-closing valve body that contacts the knob, and a third sealing ring is embedded in the sealing groove of the self-closing valve body.

[0015] Furthermore, the glass tube assembly includes a glass sleeve joint, a glass tube protective cover, and a glass tube;

[0016] The upper and lower second lateral flanges are detachably connected to the glass sleeve joints respectively; the upper and lower glass sleeve joints are detachably connected to the glass tube protective cover; the glass tube protective cover contains a glass tube; the glass tube is sealed and fitted onto the outside of the glass sleeve joints.

[0017] The glass sleeve joint has a central channel that connects to the inside of the second lateral flange and the inside of the glass tube.

[0018] Furthermore, two sealing grooves are formed on the outer circumferential surface of the glass sleeve joint; a second sealing ring is embedded in each of the two sealing grooves of the glass sleeve joint.

[0019] Furthermore, the glass tube protective cover is provided with a strip-shaped observation window; the glass tube protective cover is provided with a scale.

[0020] Furthermore, the upper and lower self-closing valve bodies are respectively threaded with right-angle valves; both the upper and lower right-angle valves have flange connection ends.

[0021] Compared with existing technologies, the beneficial effects of this utility model are:

[0022] (1) The high-pressure level gauge provided by this utility model can quickly replace the glass tube. When the glass tube leaks, the self-closing valve assembly automatically closes, and maintenance only requires replacing the glass tube assembly.

[0023] (2) The high-pressure liquid level gauge provided by this utility model can quickly replace the glass tube. Only the side flange and the glass tube assembly need to be replaced as a whole replacement component, which reduces the replacement and maintenance time, improves efficiency, and enables online replacement of the glass tube assembly without affecting the operation of other equipment. Attached Figure Description

[0024] Figure 1 A perspective view of a high-pressure level gauge with a rapidly replaceable glass tube in a leakage state, provided for an embodiment of this utility model;

[0025] Figure 2 A top view of a high-pressure level gauge with a quickly replaceable glass tube in a leakage state, as provided in an embodiment of this utility model.

[0026] Figure 3 for Figure 2 Sectional view along line AA in the middle;

[0027] Figure 4 for Figure 3 Enlarged view of part A in the image;

[0028] Figure 5 for Figure 3 Enlarged view of part B in the image;

[0029] Figure 6 for Figure 2 BB-direction sectional view in the middle;

[0030] Figure 7 A cross-sectional view of a high-pressure level gauge with a quickly replaceable glass tube in normal working condition, as provided in an embodiment of this utility model.

[0031] Figure 8 for Figure 7 Enlarged view of section C in the image;

[0032] Figure 9 for Figure 8 Enlarged view of part D in the image;

[0033] Figure 10 A perspective view of the glass sleeve connector provided in an embodiment of this utility model;

[0034] Figure 11 An exploded view of the flange assembly provided in an embodiment of this utility model;

[0035] Figure 12 for Figure 11 Another structural diagram;

[0036] Figure 13 A perspective view of the first sealing ring and the first compression spring provided for an embodiment of this utility model;

[0037] Figure 14 A perspective view of the self-closing valve pin provided in an embodiment of this utility model;

[0038] Figure 15 A front view of a high-pressure level gauge and a right-angle valve in normal working condition, capable of quickly replacing the glass tube, provided in an embodiment of this utility model.

[0039] In the diagram: 1. Self-closing valve pin; 2. Self-closing valve body; 3. Knob; 4. First sealing ring; 5. First compression spring; 6. Glass tube; 7. Glass tube protective cover; 8. Glass sleeve joint; 9. First lateral flange; 10. Second lateral flange; 11. Second compression spring; 12. Third sealing ring; 13. Second sealing ring; 14. Channel; 15. Gap; 16. Strip observation window; 17. Right angle valve. Detailed Implementation

[0040] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0041] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] Example:

[0044] like Figure 1-15 As shown, a high-pressure level gauge with a quick-change glass tube includes a self-closing valve assembly, a flange assembly, a first sealing ring 4, and a glass tube assembly.

[0045] like Figure 7-9 As shown, the self-closing valve assembly includes a self-closing valve body 2, a self-closing valve pin 1, and a knob 3.

[0046] A knob 3 is threadedly connected to the valve body 2 of the self-closing valve. A sealing ring is provided on the end face where the valve body 2 and the knob 3 contact. A third sealing ring 12 is embedded in the sealing groove of the valve body 2.

[0047] The upper and lower ends of the self-closing valve body 2 are respectively provided with through holes; the self-closing valve body 2 is provided with a self-closing valve pin 1 inside; one end of the self-closing valve body 2 extends into the center hole of the first sealing ring 4 and the other end extends out of the through hole of the self-closing valve body 2; one end of the second compression spring 11 is fixedly connected to the self-closing valve body 2 and the other end is fixedly connected to the self-closing valve pin 1.

[0048] like Figure 1 As shown, the flange assembly includes a first lateral flange 9 and a second lateral flange 10 spliced ​​together. The first lateral flange 9 is L-shaped, the second lateral flange 10 is L-shaped, and the first lateral flange 9 and the second lateral flange 10 are spliced ​​together to form a square flange assembly.

[0049] The first lateral flange 9 and the second lateral flange 10 are connected to each other by transverse bolts. The first lateral flange 9 has a channel 14 inside, and the second lateral flange 10 also has a channel 14 inside. The channels 14 inside the first lateral flange 9 and the second lateral flange 10 are interconnected.

[0050] like Figure 7-9 As shown, the first sealing ring 4 is placed inside the channel 14 of the first lateral flange 9. The first sealing ring 4 is T-shaped; the horizontal part of the first sealing ring 4 is threaded to the valve body 2 of the self-closing valve, and the vertical part extends into the interior of the valve body 2 through a through hole; the first sealing ring 4 has a vertically formed center hole. The center hole of the first sealing ring 4 is connected to the internal channel 14 of the first lateral flange 9 and the interior of the valve body 2 of the self-closing valve.

[0051] One end of the first compression spring 5 is fixedly connected to the first sealing ring 4, and the other end abuts against the end face of the self-closing valve pin 1. The end face of the first sealing ring 4 near the self-closing valve pin 1 is an arc surface; the end faces of the self-closing valve pin 1 and the first sealing ring 4 that abut against each other are arc surfaces; the arc surface of the first sealing ring 4 and the arc surface of the self-closing valve pin 1 can be matched and connected to each other (the two arc surfaces contact each other under pressure).

[0052] like Figure 7-9 As shown, when the first compression spring 5 is in its initial state, there is a gap 15 between the first sealing ring 4 and the self-closing valve pin 1, with the height of the narrowest gap 15 being 3–15 mm. Figure 3-6 As shown, when the fluid flow rate is too high (such as leakage), the fluid exerts an upward thrust on the self-closing valve pin 1. The arc surface of the self-closing valve pin 1 and the arc surface of the first sealing ring 4 are tightly fitted. The continuous inflow of fluid further causes the pressure area on both sides of the self-closing valve pin 1 to be unequal. The high pressure makes the self-closing valve pin 1 firmly pressed on the first sealing ring 4.

[0053] like Figure 1-2As shown, the glass tube assembly includes a glass sleeve joint 8, a glass tube protective cover 7, and a glass tube 6; the upper and lower second lateral flanges 10 are threadedly connected to the glass sleeve joint 8 respectively; a glass tube protective cover 7 is threaded between the upper and lower glass sleeve joints 8; the glass tube 6 is located inside the glass tube protective cover 7. The upper and lower ends of the glass tube 6 abut against the glass sleeve joint 8 respectively, and the inner circumferential surface of the glass tube 6 is sealed and fitted against the outer circumferential surface of the glass sleeve joint 8, with the glass tube 6 sealingly fitted onto the outside of the glass sleeve joint 8.

[0054] Two sealing grooves are provided on the outer circumference of the glass sleeve joint 8; a second sealing ring 13 is embedded in each of the two sealing grooves of the glass sleeve joint 8.

[0055] The glass sleeve joint 8 has a central channel that connects the inside of the second lateral flange 10 and the inside of the glass tube 6.

[0056] A strip observation window 16 is provided on the glass tube protective cover 7; the glass tube protective cover 7 is provided with a scale.

[0057] The upper and lower self-closing valve bodies 2 are respectively threaded with right-angle valves 17; both the upper and lower right-angle valves 17 have flange connection ends. A flanged short pipe is welded to the container to be measured, and the direct valve is threadedly connected to the flanged short pipe through the flange connection end, thereby connecting the high-pressure level gauge with the ability to quickly replace the glass tube to the container.

[0058] A float ball can be installed inside the glass tube 6, and the liquid level inside the glass tube 6 can be observed through the strip observation window 16 on the glass tube protective cover 7.

[0059] Working principle: such as Figure 7-9 As shown, during normal operation, when the first compression spring 5 is in its initial state, the first sealing ring 4 abuts against the arc surface of the self-closing valve pin 1. There is a gap 15 between the arc surface of the first sealing ring 4 and the arc surface of the self-closing valve pin 1 to ensure that the fluid can pass through. The fluid in the container normally enters the glass tube 6, and the liquid level height in the glass tube 6 is read through the observation window, which is the liquid level height in the container.

[0060] like Figure 3-6As shown, when the fluid flow rate is too high, if the glass tube 6 leaks, the fluid will generate an upward thrust, and the high pressure will cause the self-closing valve pin 1 to be firmly pressed against the first sealing ring 4. At this time, it is convenient to disassemble this high-pressure level gauge: the upper second lateral flange 10, the glass tube assembly, and the lower second lateral flange 10 are replaced as a whole replacement part from this high-pressure level gauge. At this time, the arc surface of the upper first sealing ring 4 and the arc surface of the self-closing valve pin 1 are tightly fitted without any gap 15, and the liquid in the container can no longer flow into the whole replacement part. Similarly, the arc surface of the lower first sealing ring 4 and the arc surface of the self-closing valve pin 1 are tightly fitted without any gap 15, and the liquid in the container can no longer flow into the whole replacement part. Therefore, the glass tube assembly can be replaced without replacing the right angle valve 17 and the self-closing valve.

[0061] If the glass tube 6 is damaged and leaks, since the glass sleeve connector 8, the second lateral flange 10, and the glass tube protective cover 7 are all threaded connections, the second lateral flange 10 and the glass sleeve connector 8 can be disassembled, and the damaged glass tube 6 can be removed from the glass tube protective cover 7 to replace the glass tube 6 separately. The operation is simple and the replacement is efficient. Then, a new, intact glass tube 6 is selected, and the glass tube 6 is sealed and fitted onto the outside of the glass sleeve connector 8. The glass sleeve connector 8 and the glass tube protective cover 7 are then threaded together. The glass sleeve connector 8 is then threaded together with the upper and lower second lateral flanges 10 to form a new, complete replacement component. Finally, the upper and lower second lateral flanges 10 and the first lateral flange 9 are threaded together to successfully install a new high-pressure level gauge that can quickly replace the glass tube.

[0062] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A high-pressure liquid level gauge with a quickly replaceable glass tube, characterized in that, include: The self-closing valve assembly includes a self-closing valve body, a knob detachably mounted on the self-closing valve body, and a self-closing valve pin mounted inside the self-closing valve body via a second elastic element. The upper and lower ends of the self-closing valve body are respectively provided with through holes. A flange assembly, comprising a first lateral flange and a second lateral flange that are detachably connected to each other, wherein the internal channels of the first lateral flange and the second lateral flange are interconnected. The first sealing ring is placed in the channel of the first lateral flange. The first sealing ring and the self-closing valve body are detachably connected. The first sealing ring has a central hole in the vertical direction. The first sealing ring passes through the through hole. One end of the first elastic member is fixedly connected to the first sealing ring, and the other end abuts against the end face of the self-closing valve pin. The first elastic member is in the initial state. There is a gap between the first sealing ring and the self-closing valve pin. A glass tube assembly is detachably provided between the upper and lower second lateral flanges, and the interior of the second lateral flange is connected to the interior of the glass tube assembly.

2. The high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 1, characterized in that, The first elastic element is a first compression spring; the second elastic element is a second compression spring; One end of the second compression spring is fixedly connected to the valve body of the self-closing valve, and the other end is fixedly connected to the pin of the self-closing valve.

3. A high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 1, characterized in that, The end face of the first sealing ring near the self-closing valve pin and the end face of the self-closing valve pin and the first sealing ring that abut against each other are mutually matching arc surfaces.

4. A high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 1, characterized in that, A knob is threaded onto the valve body of the self-closing valve. A sealing ring is provided on the end face of the self-closing valve body that contacts the knob, and a third sealing ring is embedded in the sealing groove of the self-closing valve body.

5. A high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 1, characterized in that, The glass tube assembly includes a glass sleeve joint, a glass tube protective cover, and a glass tube; The upper and lower second lateral flanges are detachably connected to the glass sleeve joints respectively; the upper and lower glass sleeve joints are detachably connected to the glass tube protective cover; the glass tube protective cover contains a glass tube; the glass tube is sealed and fitted onto the outside of the glass sleeve joints. The glass sleeve joint has a central channel that connects to the inside of the second lateral flange and the inside of the glass tube.

6. A high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 5, characterized in that, Two sealing grooves are formed on the outer circumference of the glass sleeve joint; a second sealing ring is embedded in each of the two sealing grooves of the glass sleeve joint.

7. A high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 5 or 6, characterized in that, The glass tube protective cover has a strip observation window; the glass tube protective cover has a scale.

8. A high-pressure liquid level gauge with a quickly replaceable glass tube according to claim 1, characterized in that, The upper and lower self-closing valve bodies are respectively threaded with right-angle valves; both the upper and lower right-angle valves have flange connection ends.

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