Quartz tube level gauge and its use method

Abstract

The present invention relates to the technical field of liquid level gauges, and proposes a quartz tube liquid level gauge and a method for using the same, comprising a liquid level tube, a connecting tube, and a gas adding tube, wherein the connecting tube comprises a top tube and a bottom tube, and the bottom tube comprises a second connecting tube and an inclined tube, one end of the top tube is sealed and connected to the top of the liquid level tube, and the other end is sealed and connected to the top of the container to be measured; one end of the inclined tube is sealed and connected to the bottom end of the second connecting tube, and the other end of the inclined tube is sealed and connected to the bottom end of the liquid level tube, and the end of the inclined tube close to the liquid level tube is located above the end of the inclined tube away from the liquid level tube; one end of the gas adding tube is connected and arranged in the middle position of the circumference of the inclined tube. The present invention can improve the recognition of the transparent medium in the liquid level tube by providing a gas adding tube and using it to add gas into the liquid level tube, so that the operator can quickly capture the liquid level position of the liquid phase medium in the liquid level tube, thereby improving the efficiency of liquid level detection.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid level gauges, and in particular to a quartz tube liquid level gauge and a use method thereof. Background Art

[0002] A quartz tube level gauge is a simple, intuitive liquid level measurement device. Quartz offers advantages such as high purity, high temperature resistance, and chemical corrosion resistance. Its low coefficient of thermal expansion allows it to maintain dimensional stability over a wide temperature range. Quartz tube level gauges offer distinct advantages in applications requiring specialized level measurement, such as high temperatures and highly corrosive environments.

[0003] The operating conditions of quartz tube level gauges are relatively complex. When quartz tube level gauges are used to detect transparent media, it may be difficult to quickly observe the liquid level position of the medium, which will reduce the observation convenience of the level gauge. For this reason, many quartz tube level gauges are equipped with corresponding reinforcement marks.

[0004] For example, the utility model disclosed in patent publication number CN201716067U discloses a high-definition display quartz tube two-color liquid level gauge. In order to reduce the difficulty of observing transparent media, a shell is set outside the quartz tube, and a light source, a green filter plate and a red filter plate are set on the shell. The contrast between red and green colors is used to improve the observation convenience of the liquid level gauge.

[0005] However, the dual-color liquid level meter requires a light source and a filter plate to be arranged on one side of the quartz tube. The light source needs to be powered in real time, which limits the adaptability of the liquid level meter and is not conducive to improving the detection efficiency of the liquid level meter. Summary of the Invention

[0006] In view of this, the present invention proposes a quartz tube liquid level gauge and a method of using the same, which enables operators to quickly capture the liquid level position of the liquid medium in the liquid level tube while ensuring the adaptability of the liquid level gauge, thereby improving the efficiency of liquid level detection.

[0007] The technical solution of the present invention is implemented as follows: on the one hand, the present invention provides a quartz tube level gauge, comprising a liquid level tube, a connecting tube and a gas adding tube, wherein the liquid level tube is arranged in a vertical direction; the connecting tube comprises a top tube and a bottom tube, the bottom tube comprises a second connecting tube and an inclined tube, one end of the top tube is sealed and connected to the top of the liquid level tube, and the other end is sealed and connected to the top of the container to be measured; the second connecting tube is arranged in a vertical direction, and the top of the second connecting tube is sealed and connected to the bottom of the container to be measured; one end of the inclined tube is sealed and connected to the bottom end of the second connecting tube, and the other end of the inclined tube is sealed and connected to the bottom end of the liquid level tube, the inclined tube is arranged in an inclined direction, and the end of the inclined tube close to the liquid level tube is located above the end of the inclined tube away from the liquid level tube; one end of the gas adding tube is connected and arranged in the middle position of the circumference of the inclined tube, for adding gas into the inclined tube.

[0008] On the basis of the above technical solution, preferably, the gas filling pipe includes a tube body, an elastic airbag and two check valves, wherein one end of the tube body is fixed through the top side of the inclined tube; the elastic airbag and the check valve are both connected and arranged in the tube body, and the elastic airbag is located between the two check valves.

[0009] Further preferably, the top pipe includes a first connecting pipe and a horizontal pipe, wherein the first connecting pipe is arranged in a vertical direction, and the bottom end of the first connecting pipe is connected to the top of the container to be tested; one end of the horizontal pipe is sealed and connected to the top of the first connecting pipe, and the other end of the horizontal pipe is connected to the top of the liquid level pipe, and the end of the tube body away from the inclined tube is fixed on the horizontal pipe, and the tube body is connected to the interior of the horizontal tube.

[0010] Further preferably, both ends of the tube body are located outside the transverse tube, a connecting hole is opened on the circumferential side of the tube body, and the connecting hole is connected to the interior of the transverse tube; the gas filling pipe also includes a plug, which is detachably fixed to one end of the tube body away from the inclined tube to seal the tube body.

[0011] More preferably, the relative position of the plug and the tube body is adjustable; when the plug blocks the tube body, the plug may not block the communicating hole; when the plug does not block the tube body, the plug may block the communicating hole.

[0012] On the basis of the above technical solution, preferably, a dispersion rack is further included, wherein the dispersion rack includes a cone cylinder, the cone cylinder is coaxially fixed in the liquid level tube, and the inner diameter of the cone cylinder gradually decreases from bottom to top.

[0013] More preferably, the dispersion rack also includes a partition and a plurality of diversion pipes, wherein the partition is fixedly arranged on the top side of the cone; the diversion pipe is fixed through the partition, the top end of the diversion pipe is located above the top side of the partition, and the bottom end of the diversion pipe is flush with the bottom side of the partition.

[0014] On the basis of the above technical solution, preferably, it further includes a reading ruler, which is sleeved on the liquid level tube and rotatably arranged with the liquid level tube; one end of the top tube close to the container to be tested and one end of the bottom tube close to the container to be tested are both located between the two ends of the reading ruler.

[0015] On the basis of the above technical solution, preferably, the liquid level tube includes a detection tube, two extension tubes, a sealing bolt and a regulating valve, wherein the two extension tubes are coaxially fixed at both ends of the detection tube, and the top tube and the bottom tube are respectively arranged on the circumferential sides of the two extension tubes; the sealing bolt is connected to the top end of the extension tube located above by threaded fitting; and the regulating valve is connected to the extension tube located below.

[0016] In a second aspect, the present invention provides a method for using the above-mentioned quartz tube liquid level gauge, comprising the following steps: S1, connecting the top tube and the bottom tube to the top and bottom of the container to be measured, respectively, so that the liquid level tube is connected to the interior of the container to be measured, and the medium in the container to be measured flows into the liquid level tube; S2, inputting non-continuous gas into the gas adding tube, so that the gas flows into the liquid level tube; S3, observing the liquid level of the medium in the liquid level tube, and judging the liquid level height of the medium in the container to be measured.

[0017] The quartz tube liquid level gauge and its use method of the present invention have the following beneficial effects compared with the prior art:

[0018] (1) By setting up a gas adding pipe and using it to add gas into the liquid level pipe, the recognition of the transparent medium in the liquid level pipe can be improved, so that the operator can quickly capture the liquid level position of the liquid phase medium in the liquid level pipe, thereby improving the efficiency of liquid level detection.

[0019] (2) By setting the top pipe to include a first connecting pipe and a horizontal pipe, and setting the bottom pipe to include a second connecting pipe and an inclined pipe, and limiting their setting directions, not only can the detection blind area of ​​the liquid level meter be eliminated, but also the gas can be prevented from flowing into the container to be tested, thereby further improving the efficiency of liquid level detection.

[0020] (3) By setting up different types of dispersion racks, the level meter can take into account the convenience of observation, anti-blocking and flushing functions, thereby improving the practicality of the level meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 paying any creative work.

[0022] Figure 1 It is a three-dimensional diagram of the quartz tube liquid level gauge of the present invention.

[0023] Figure 2 It is a cross-sectional view of the quartz tube liquid level gauge of the present invention.

[0024] Figure 3 It is a three-dimensional view of the bottom tube of the quartz tube liquid level gauge of the present invention.

[0025] Figure 4 It is a three-dimensional view of the top pipe of the quartz tube liquid level gauge of the present invention.

[0026] Figure 5 This is a cross-sectional view of the plug of the quartz tube level gauge of the present invention when the plug is in a state of sealing the tube body.

[0027] Figure 6 This is a cross-sectional view of the plug of the quartz tube level gauge of the present invention when the plug is in a state of sealing the communicating hole.

[0028] Figure 7 It is a three-dimensional diagram of the plug in the quartz tube liquid level gauge of the present invention.

[0029] Figure 8 This is a cross-sectional view of the first dispersion frame in the quartz tube liquid level gauge of the present invention.

[0030] Figure 9 This is a cross-sectional view of the second dispersion frame in the quartz tube level gauge of the present invention.

[0031] Figure 10 This is a cross-sectional view of the third dispersion frame in the quartz tube level gauge of the present invention.

[0032] Figure 11 It is a cross-sectional view of the check valve in the quartz tube liquid level gauge of the present invention.

[0033] Among them: 1. Liquid level tube; 11. Detection tube; 12. Extension tube; 13. Sealing bolt; 14. Regulating valve; 2. Connecting tube; 21. Top tube; 22. Bottom tube; 211. First connecting tube; 212. Horizontal tube; 221. Second connecting tube; 222. Inclined tube; 3. Gas filling tube; 31. Tube body; 32. Elastic airbag; 33. Check valve; 34. Plug; 301. Connecting hole; 4. Dispersion rack; 41. Conical cylinder; 42. Partition; 43. Diverter tube; 5. Reading scale. DETAILED DESCRIPTION

[0034] The following will be combined with the specific embodiments of the present invention to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only 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 are within the scope of protection of the present invention.

[0035] A liquid level gauge is an instrument used to measure and indicate the height of a liquid medium within a container. By measuring the liquid level in real time, a level gauge provides critical data support for industrial production, improving the automation level of the production process, and helping to optimize production processes, increasing production efficiency and product quality. Furthermore, monitoring the liquid level with a level gauge can prevent overflow or evacuation of the liquid within the container, thereby ensuring production safety.

[0036] Quartz tube level gauge is one of the many types of liquid level gauges. It has the advantages of clear display, high temperature and high pressure resistance, anti-stickiness, simple structure and corrosion resistance. It has been widely used in petroleum, chemical, electric power, metallurgy and other industries.

[0037] When detecting the liquid level of a transparent medium, the distinction between the liquid and gas phases within a quartz tube level gauge is unclear, making it difficult to detect the liquid level. To address this issue, existing technologies incorporate a dual-color identification assembly consisting of a light source and a filter plate, allowing the gas and liquid phases within the gauge to display two different colors. However, this approach not only increases the structural complexity of the gauge, increasing its production and maintenance costs, but also requires real-time power supply to the light source, reducing its adaptability.

[0038] The quartz tube liquid level gauge of the present invention comprises a liquid level tube 1, a connecting tube 2 and an air adding tube 3, and is used for detecting the liquid level of a medium in a container to be measured.

[0039] like Figure 1 As shown, a liquid level tube 1 is arranged vertically. Its two ends are connected to the container under test via connecting tubes 2. This allows the medium in the container to flow into the tube 1 and allows the liquid level in the tube 1 to be flush with the liquid level in the container under test. The tube 1 is a transparent quartz tube, allowing inspectors to directly observe the liquid level in the tube 1 and thus determine the liquid level in the container under test.

[0040] The gas adding tube 3 is used to add gas to the bottom end of the liquid level tube 1. When gas is injected into the liquid medium in the liquid level tube 1, the gas floats upward in the form of bubbles until it floats to the liquid level position of the medium. This method can significantly improve the recognition of the liquid medium in the liquid level tube 1, thereby making the liquid level height information of the liquid medium easier for the operator to capture, thereby improving the convenience of using the liquid level meter and the detection efficiency of the liquid level in the container to be tested.

[0041] like Figure 2 and Figure 3 As shown, the connecting pipe 2 includes a top pipe 21 and a bottom pipe 22, and the bottom pipe 22 includes a second connecting pipe 221 and an inclined pipe 222. One end of the top pipe 21 is sealed and connected to the top of the liquid level pipe 1, and the other end is sealed and connected to the top of the container to be tested. The second connecting pipe 221 is arranged in a vertical direction, and the top of the second connecting pipe 221 is sealed and connected to the bottom of the container to be tested, one end of the inclined pipe 222 is sealed and connected to the bottom end of the second connecting pipe 221, and the other end of the inclined pipe 222 is sealed and connected to the bottom end of the liquid level pipe 1. The inclined pipe 222 is arranged in an inclined direction, and the end of the inclined pipe 222 close to the liquid level pipe 1 is located above the end of the inclined pipe 222 away from the liquid level pipe 1. One end of the gas adding pipe 3 is connected and arranged in the middle position of the circumference of the inclined pipe 222. When gas is added to the inclined pipe 222 from the gas adding pipe 3, the gas floats upward along the top side of the inclined pipe 222 and enters the liquid level pipe 1 without entering the container to be tested.

[0042] Compared with the method of directly adding gas into the liquid level tube 1, the gas adding method of this technical solution allows the gas and the liquid medium to contact for a period of time first, which not only makes the temperature and other parameters of the two more balanced, but also reduces the impact of bubbles on the medium in the liquid level tube 1; at the same time, the gas adding pipe 3 is away from the liquid level tube 1, and during the installation of the liquid level gauge, the gas adding pipe 3 can be prevented from damaging the liquid level tube 1.

[0043] When reading the liquid level gauge, only a small amount of gas needs to be added to the liquid level tube 1, so a manual gas filling mechanism can be used; at the same time, the manual gas filling method can also avoid restrictions on the operating conditions of the liquid level gauge and improve the adaptability of the liquid level gauge.

[0044] Specifically, the gas pipe 3 includes a pipe body 31, an elastic airbag 32 and two check valves 33. One end of the pipe body 31 is fixed on the inclined pipe 222, so that the pipe body 31 is connected to the interior of the inclined pipe 222. The elastic airbag 32 and the check valve 33 are both connected and arranged in the pipe body 31, and the elastic airbag 32 is located between the two check valves 33. Figure 2As shown, the directions of the two check valves 33 are consistent, and gas can pass through the two check valves 33 from top to bottom, but cannot pass through the two check valves 33 from bottom to top. The elastic airbag 32 is elastic. When the elastic airbag 32 is squeezed, the gas in the elastic airbag 32 flows into the inclined tube 222 through the check valve 33 below. When the elastic airbag 32 is released, the elastic airbag 32 returns to its original shape and allows the external gas to flow into the elastic airbag 32 along the upper end of the tube body 31 and the check valve 33 located above. Therefore, when the elastic airbag 32 is pressed back and forth, air can be intermittently supplied to the inclined tube 222.

[0045] To reduce the travel of the gas within the inclined tube 222 and minimize the impact of the gas on the liquid medium, one end of the tube body 31 is preferably positioned at the top of the inclined tube 222. Of course, the inner diameter of the tube body 31 should be relatively small so that gas can be supplied into the inclined tube 222 even when the elastic airbag 32 is slightly pressed, allowing the operator to control the amount of gas added based on actual conditions.

[0046] When gas is added to the level gauge, the air pressure in the level gauge and the container to be measured will increase; when the medium in the container to be measured is a special medium, the added gas may react with the medium, causing the medium to denature.

[0047] To this end, the structure of the top pipe 21 and the end of the pipe body 31 away from the inclined pipe 222 are improved.

[0048] like Figure 2 and Figure 4 As shown, the top pipe 21 includes a first connecting pipe 211 and a transverse pipe 212. The first connecting pipe 211 is arranged in the vertical direction. The bottom end of the first connecting pipe 211 is connected to the top of the container to be tested. One end of the transverse pipe 212 is sealed and connected to the top of the first connecting pipe 211. The other end of the transverse pipe 212 is connected to the top of the liquid level pipe 1. The end of the tube body 31 away from the inclined tube 222 is fixed on the transverse pipe 212, and the tube body 31 is connected to the interior of the transverse pipe 212.

[0049] Since the top of the container to be measured is usually filled with a gaseous medium, and the transverse tube 212 is located above the end of the first connecting tube 211 that connects to the container to be measured, there is no liquid-phase medium inside the transverse tube 212, only the gaseous medium in the container to be measured. When the end of the tube body 31 away from the inclined tube 222 is connected to the transverse tube 212, the gaseous medium in the liquid level gauge can be circulated. That is, when the elastic airbag 32 is pressed, the gas in the transverse tube 212 can be transferred to the inclined tube 222. This not only adds bubbles to the liquid-phase medium in the liquid level tube 1, improving the recognition of the liquid-phase medium in the liquid level tube 1, but also prevents changes in the air pressure and properties of the liquid-phase medium in the liquid level gauge.

[0050] Of course, in some special working conditions, the gas phase medium of the container to be tested may affect the liquid phase medium. In this working condition, the main consideration is the protection of the liquid phase medium, while the slight impact of the air pressure change is ignored. Therefore, the tube body 31 can be connected to a specific air source.

[0051] In order to realize the switching of the gas source of the tube body 31, as Figure 4-Figure 6 As shown, the upper end of the tube body 31 extends out of the transverse tube 212, that is, both ends of the tube body 31 are located outside the transverse tube 212. A communication hole 301 is provided on the circumference of the tube body 31, allowing the communication hole 301 to communicate with the interior of the transverse tube 212. In this case, the tube body 31 can be connected to the transverse tube 212 through the communication hole 301 to achieve circulation of the gas phase medium in the liquid level gauge. It can also be connected to a specific gas source to input a specified gas into the liquid level gauge. At the same time, when the tube body 31 is connected to the transverse tube 212 and the gas source equipment at the same time, it can also solve the problem of reduced gas pressure caused by the gas phase medium dissolving into the liquid phase medium in the liquid level gauge.

[0052] A plug 34 is provided in the gas adding pipe 3. The plug 34 is detachably fixed to the end of the pipe body 31 away from the inclined pipe 222. The relative position of the two is adjustable for switching the source of the gas added to the inclined pipe 222.

[0053] When the plug 34 is fixedly set at the end of the tube body 31 away from the inclined tube 222, the end of the tube body 31 away from the inclined tube 222 is blocked without blocking the connecting hole 301, the tube body 31 is only connected to the horizontal tube 212, thereby realizing the circulation of the gaseous medium in the liquid level gauge.

[0054] When the plug 34 is fixedly set at the end of the tube body 31 away from the inclined tube 222 to block the connecting hole 301, and the end of the tube body 31 away from the inclined tube 222 is not blocked, the tube body 31 can be connected to a specific gas source to add specific gas into the inclined tube 222.

[0055] When the plug 34 is removed so that it does not block the communicating hole 301 and the end of the tube body 31 away from the inclined tube 222 , the gaseous medium and the specific gas in the level gauge can be added into the inclined tube 222 at the same time.

[0056] When the plug 34 is fixedly arranged at the end of the tube body 31 away from the inclined tube 222 and blocks the connecting hole 301 and the end of the tube body 31 away from the inclined tube 222, the tube body 31 can be sealed and protected for operations such as flushing the connecting tube 2.

[0057] To achieve the above effect, the plug 34 can be configured to include a barrel and a screw, such as Figure 5-Figure 7 As shown, the screw is connected to the barrel through threaded engagement, and the barrel is connected to the tube body 31 through threaded engagement, as shown in FIG. Figure 6As shown, when the screw barrel is connected to the tube body 31, the screw barrel can selectively block the communicating hole 301 by rotating the screw barrel, as shown in FIG. Figure 5 As shown, the tube body 31 can be selectively blocked by disassembling and assembling the screw and the barrel.

[0058] In order to directly read the height of the liquid medium in the container to be measured, it is preferred to set a reading ruler 5 on the liquid level tube 1, such as Figure 1 and Figure 2 As shown, the reading ruler 5 is put on the liquid level tube 1, and the liquid level height in the container to be measured is read by matching the liquid level height in the liquid level tube 1 with the corresponding scale of the reading ruler 5.

[0059] like Figure 2 As shown, the liquid level tube 1 includes a detection tube 11, two extension tubes 12, a sealing bolt 13 and a regulating valve 14. The detection tube 11 is a transparent quartz tube. The two extension tubes 12 are coaxially fixed at both ends of the detection tube 11. The two extension tubes 12 are made of metal or other materials. The top tube 21 and the bottom tube 22 are respectively arranged on the circumferential sides of the two extension tubes 12, thereby improving the installation convenience and structural strength of the liquid level tube 1.

[0060] The reading scale 5 is preferably a cover-like structure, with the detection tube 11 located within the reading scale 5. If the detection tube 11 is damaged, the medium in the level gauge can be retained within the reading scale 5, thereby providing a certain degree of protection. The reading scale 5 is preferably rotatably connected to two extension tubes 12, so that the height of the liquid level in the detection tube 11 can be observed from different directions.

[0061] The blocking bolt 13 is connected to the top of the extension tube 12 located above through threaded fitting, and the regulating valve 14 is connected and arranged in the extension tube 12 located below. By regularly opening the regulating valve 14, impurities precipitated in the liquid level tube 1 can be discharged in time; when the blocking bolt 13 is removed, the cleaning rod can be inserted into the extension tube 12 and the detection tube 11 to clean the inner wall of the liquid level tube 1.

[0062] In order to achieve the above effect, the top tube 21 and the bottom tube 22 are both L-shaped or arc-shaped, such as Figure 2 As shown, the end of the top tube 21 close to the container to be tested and the end of the bottom tube 22 close to the container to be tested are both located between the two ends of the reading scale 5, that is, when the liquid medium in the container to be tested changes from being full to being empty, it can be detected by the reading scale 5 and the liquid level tube 1, eliminating the detection blind spot of the liquid level meter.

[0063] In order to control the bubbles in the liquid level tube 1, a dispersion rack 4 is also provided. The dispersion rack 4 includes a cone 41, a partition 42 and a plurality of diversion tubes 43. The cone 41 is used to control the flow direction of the bubbles, and the diversion tubes 43 are used to disperse the bubbles so that the originally larger bubbles are dispersed into a plurality of small bubbles, which can not only slow down the floating speed of the bubbles, but also reduce the impact of the bubbles on the liquid medium; wherein, the plurality of diversion tubes 43 are arranged in a circular array.

[0064] The present invention proposes three different types of dispersion racks 4 according to different operating conditions, as follows.

[0065] The first type of dispersion rack 4 is as follows Figure 8 As shown, the cone 41 is coaxially fixed in the liquid level tube 1, and the inner diameter of the cone 41 gradually decreases from bottom to top. The partition 42 is fixed on the top side of the cone 41, and the diversion pipe 43 is fixed on the partition 42. When the gas enters the liquid level tube 1, it is first gathered by the cone 41 in the middle position of the liquid level tube 1, and then floats upward through multiple diversion pipes 43. Since multiple bubbles are relatively concentrated, they are easier to observe. Therefore, this type of dispersion rack 4 is easier to improve the recognition of the liquid medium, which helps to improve the detection efficiency of the liquid level meter.

[0066] In order to improve the diversion effect of the diversion tube 43 , it is preferred that the top end of the diversion tube 43 is located above the top side of the partition 42 and the bottom end of the diversion tube 43 is flush with the bottom side of the partition 42 .

[0067] The second type of dispersion rack 4 is as follows Figure 9 As shown, the cone 41 is coaxially fixed in the liquid level tube 1, the outer diameter of the cone 41 gradually increases from bottom to top, the partition 42 is fixed on the bottom side of the cone 41, and the diverter pipe 43 passes through and is fixed on the side wall of the cone 41; when the gas enters the liquid level tube 1, it is first dispersed to the edge position of the liquid level tube 1 by the cone 41, and then floats upward through multiple diverter pipes 43. At this time, multiple bubbles are relatively concentrated and easy to observe.

[0068] In addition to the above functions, the second type of dispersion rack 4 also has a certain anti-blocking effect, such as Figure 9 As shown, when there are impurities in the liquid medium and the liquid medium flows from top to bottom, the impurities move downward along the inner wall of the cone 41, and only block the several diversion tubes 43 located below, but not the diversion tubes 43 located above. The bubbles flow in the opposite direction and can also flush out the impurities blocking the diversion tubes 43; when there are impurities in the liquid medium and the liquid medium flows from bottom to top, the impurities move upward along the inner wall of the cone 41, and only block the several diversion tubes 43 located above, but not the diversion tubes 43 located below, so as to ensure the smooth passage of the medium.

[0069] The third type of dispersion rack 4 is as follows Figure 10As shown, the cone 41 is coaxially fixed in the liquid level tube 1, and the inner diameter of the cone 41 gradually decreases from bottom to top. The partition 42 is fixed on the top side of the cone 41, and the diversion pipe 43 is fixed on the side wall of the cone 41; when the gas enters the liquid level tube 1, it is dispersed to the edge position of the liquid level tube 1 along multiple diversion pipes 43. Although multiple bubbles are relatively dispersed, they are close to the side wall of the liquid level tube 1. When the liquid level tube 1 is observed in different directions, bubbles can be seen; similar to the above, this type of dispersion rack 4 also has a good anti-blocking effect; at the same time, since the bubbles flow upward close to the inner wall of the liquid level tube 1, they will also have a certain flushing effect on the liquid level tube 1.

[0070] The method of using the quartz tube liquid level gauge of the present invention is as follows:

[0071] S1, connect the first connecting pipe 211 and the second connecting pipe 221 to the top and bottom of the container to be tested respectively, so that the liquid level tube 1 is connected to the inside of the container to be tested, and the medium in the container to be tested flows into the liquid level tube 1.

[0072] S2, adjust the position of the plug 34, select a suitable gas source, and input discontinuous gas into the gas adding pipe 3 by pressing the elastic airbag 32, so that the gas flows into the liquid level pipe 1, thereby improving the recognition of the liquid medium in the liquid level pipe 1.

[0073] S3, observe the liquid level of the medium in the liquid level tube 1, and use the reading ruler 5 to determine the liquid level height of the medium in the container to be measured. The liquid level height of the medium in the liquid level tube 1 is the liquid level height of the medium in the container to be measured.

[0074] During this period, the discontinuous gas, that is, the intermittent gas, can improve the dispersion of bubbles in the liquid level tube 1, so as to improve the recognition of the liquid medium in the liquid level tube 1.

[0075] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Quartz tube level gauge, characterized by: It comprises a liquid level pipe (1), a connecting pipe (2) and an air filling pipe (3), wherein: The liquid level tube (1) is arranged in a vertical direction; The connecting pipe (2) includes a top pipe (21) and a bottom pipe (22), and the bottom pipe (22) includes a second connecting pipe (221) and an inclined pipe (222), one end of the top pipe (21) is sealed and connected to the top of the liquid level pipe (1), and the other end is sealed and connected to the top of the container to be tested; the second connecting pipe (221) is arranged in a vertical direction, and the top of the second connecting pipe (221) is sealed and connected to the bottom of the container to be tested; one end of the inclined pipe (222) is sealed and connected to the bottom of the second connecting pipe (221), and the other end of the inclined pipe (222) is sealed and connected to the bottom of the liquid level pipe (1); the inclined pipe (222) is arranged in an inclined direction, and the end of the inclined pipe (222) close to the liquid level pipe (1) is located above the end of the inclined pipe (222) away from the liquid level pipe (1); One end of the gas adding pipe (3) is connected to a middle position of the circumference of the inclined pipe (222) and is used to add gas into the inclined pipe (222). When gas is added into the inclined pipe (222) through the gas adding pipe (3), the gas floats upward along the top side of the inclined pipe (222) and enters the liquid level pipe (1). When gas is injected into the liquid medium in the liquid level pipe (1), the gas floats upward in the form of bubbles until it floats to the liquid level of the liquid medium.

2. The quartz tube level gauge according to claim 1, wherein: The gas filling pipe (3) comprises a pipe body (31), an elastic air bag (32) and two check valves (33), wherein: One end of the tube body (31) is fixed through the top side of the inclined tube (222); The elastic airbag (32) and the check valve (33) are both arranged in communication within the tube body (31), and the elastic airbag (32) is located between the two check valves (33).

3. The quartz tube liquid level gauge according to claim 2, wherein: The top pipe (21) comprises a first connecting pipe (211) and a transverse pipe (212), wherein: The first connecting tube (211) is arranged in a vertical direction, and the bottom end of the first connecting tube (211) is connected to the top of the container to be tested; One end of the transverse tube (212) is sealed and connected to the top end of the first connecting tube (211), and the other end of the transverse tube (212) is connected to the top end of the liquid level tube (1). One end of the tube body (31) away from the inclined tube (222) is fixed to the transverse tube (212), and the tube body (31) is connected to the interior of the transverse tube (212).

4. The quartz tube liquid level gauge according to claim 3, wherein: Both ends of the tube body (31) are located outside the transverse tube (212); a communication hole (301) is provided on the circumferential side of the tube body (31), and the communication hole (301) is connected to the interior of the transverse tube (212); The gas filling pipe (3) further comprises a plug (34), which is detachably fixed to an end of the pipe body (31) away from the inclined pipe (222) and seals the pipe body (31).

5. The quartz tube liquid level gauge according to claim 4, characterized in that: The relative position of the plug (34) and the tube body (31) is adjustable; When the plug (34) blocks the tube body (31), the plug (34) may not block the communicating hole (301); when the plug (34) does not block the tube body (31), the plug (34) may block the communicating hole (301).

6. The quartz tube liquid level gauge according to claim 1, wherein: It also includes a dispersion rack (4), the dispersion rack (4) including a cone (41), the cone (41) being coaxially fixed in the liquid level tube (1), and the inner diameter of the cone (41) gradually decreasing from bottom to top.

7. The quartz tube liquid level gauge according to claim 6, characterized in that: The dispersion rack (4) further includes a partition (42) and a plurality of diversion pipes (43), wherein: The partition (42) is fixedly arranged on the top side of the cone (41); The diverter tube (43) is fixed on the partition (42), the top end of the diverter tube (43) is located above the top side of the partition (42), and the bottom end of the diverter tube (43) is flush with the bottom side of the partition (42).

8. The quartz tube liquid level gauge according to claim 1, wherein: It also includes a reading ruler (5), which is sleeved on the liquid level tube (1) and is rotatably arranged with the liquid level tube (1); One end of the top tube (21) close to the container to be tested and one end of the bottom tube (22) close to the container to be tested are both located between the two ends of the reading ruler (5).

9. The quartz tube liquid level gauge according to claim 1, characterized in that: The liquid level tube (1) comprises a detection tube (11), two extension tubes (12), a blocking bolt (13) and a regulating valve (14), wherein: The two extension tubes (12) are coaxially fixed to the two ends of the detection tube (11), and the top tube (21) and the bottom tube (22) are respectively arranged on the circumferential sides of the two extension tubes (12); The blocking bolt (13) is connected to the top end of the extension tube (12) located above through threaded engagement; The regulating valve (14) is arranged in communication with the extension pipe (12) located below.

10. The method for using the quartz tube level gauge according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, connecting the top pipe (21) and the bottom pipe (22) at the top and bottom of the container to be tested, respectively, so that the liquid level pipe (1) is connected to the interior of the container to be tested, and the medium in the container to be tested flows into the liquid level pipe (1); S2, inputting discontinuous gas into the gas adding pipe (3) so that the gas flows into the liquid level pipe (1); S3, observing the liquid level of the medium in the liquid level tube (1) to determine the liquid level height of the medium in the container to be tested.

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