Water leakage prevention structure for jacketed glass tube liquid level meter

Abstract

The utility model belongs to the field of coal gas producer, relates to a prevent the water from leaking structure of glass tube liquid level meter of jacket, including the communicating pipe, the import end of communicating pipe communicates the steam connection pipe, the export end of communicating pipe communicates the water connection pipe, and the communicating pipe communicates the steam connection pipe and the water connection pipe. The utility model effectively solves the problem that the steam connection pipe and the water connection pipe of jacket glass tube liquid level meter frequently leak water, which causes the patrol personnel to be unable to correctly judge the real liquid level in the jacket.

Description

Technical Field

[0001] This utility model belongs to the field of gas generators and relates to a structure for preventing water leakage in a jacketed glass tube level gauge. Background Technology

[0002] In the jacket level monitoring system of a 3.4-meter diameter two-stage gasifier, the upper jacket was not equipped with a steam drum assembly during the design and construction phase. The original design involved directly installing the glass plate level gauge on the upper part of the jacket. During normal operation, softened water at approximately 70-80 degrees Celsius is injected into the jacket via a softened water pump, based on changes in the jacket water level. Due to the furnace temperature, the softened water inside the jacket is heated to generate steam for saturation at the furnace bottom. However, because the space between the top of the jacket and the steam chamber is relatively small, the separation of steam and water is inadequate during operation. This results in frequent cross-contamination between the boiling steam and softened water in the steam and water connection pipes of the jacket's glass plate level gauge. This cross-contamination severely interferes with the normal display of the jacket level gauge, making it impossible for inspection personnel to accurately determine the true liquid level inside the jacket, posing a potential risk to the safety and stability of production operations. Utility Model Content

[0003] The purpose of this invention is to provide a structure to prevent water leakage in a jacketed glass tube level gauge. This invention effectively solves the problem of frequent water leakage between the steam pipe and the water pipe in a jacketed glass tube level gauge, which prevents inspection personnel from accurately judging the true liquid level inside the jacket.

[0004] The technical solution adopted by this utility model is a structure for preventing water leakage in a jacketed glass tube level gauge, including a connecting pipe, the inlet end of which is connected to a steam pipe, and the outlet end of which is connected to a water pipe, the connecting pipe connecting the steam pipe and the water pipe.

[0005] The features of this utility model also include:

[0006] Furthermore, the outer wall of the connecting tube is provided with external fins, which extend spirally toward the axis of the connecting tube and are tightly attached to the outer wall of the connecting tube.

[0007] Furthermore, the outer fins fold to both sides alternately, forming a wave-like shape.

[0008] Furthermore, the outer wall of the connecting tube is provided with several inner fins, which are distributed along the axial direction of the connecting tube. The inner fins are zigzag or wavy.

[0009] Furthermore, the inner fins are zigzag-shaped, and multiple grooves are formed on the surface of the inner fins, which are staggered vertically. The cross-section of the grooves is a trapezoid with a wider top and a narrower bottom, and the bottom of the grooves is in contact with the inner wall of the connecting tube.

[0010] Furthermore, each inner fin is provided with at least one groove, the width of the groove bottom being 0.5~5.0mm.

[0011] Furthermore, the included angle between the two side walls of the groove is 6~15°.

[0012] Furthermore, the distance between two adjacent inner fins is 10.0~20.0 mm.

[0013] Furthermore, the thickness of the inner fins is 1.0~10.0 mm.

[0014] The beneficial effects of this utility model are as follows:

[0015] This invention effectively eliminates water cross-contamination. Through a unique design, a portion of the softened water carried by the steam connecting pipe flows directly into the water connecting pipe via the newly added steam connecting pipe, allowing steam to rise smoothly to the top of the glass tube. This ensures the level gauge accurately reflects the true liquid level, significantly improving the accuracy of level measurement. Secondly, it assists in inspection work, providing inspectors with accurate liquid level information, facilitating their accurate and rapid judgment of the jacket liquid level, timely detection of potential problems, and ensuring the safe and stable operation of the equipment. Thirdly, its optimized structural design ensures functionality while considering structural stability and reliability, reducing the risk of equipment failure, minimizing maintenance costs, extending equipment lifespan, and bringing long-term economic benefits and safety assurance to the enterprise. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a front view of Embodiment 1 of the present invention;

[0019] Figure 3 This is a cross-sectional view of Embodiment 2 of the present invention;

[0020] Figure 4 This is a cross-sectional view of Embodiment 2 of the present invention;

[0021] In the diagram, 1 is the connecting pipe, 11 is the water connecting pipe, 12 is the steam connecting pipe, 2 is the outer fin, 21 is the fin fold, 3 is the inner fin, and 31 is the groove. Detailed Implementation

[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following is in conjunction with the appendix Figure 1 To be continued Figure 4 The present invention will be described in detail with reference to specific embodiments:

[0024] Example 1

[0025] A structure to prevent water leakage in a jacketed glass tube level gauge, reference Figure 1 This system includes a connecting pipe 1, whose inlet end is connected to a steam connection pipe 12, and whose outlet end is connected to a water connection pipe 11. The connecting pipe 1 connects the steam connection pipe 12 and the water connection pipe 11, allowing some of the softened water carried by the steam connection pipe 12 to flow directly into the water connection pipe 11 through the newly added steam connection pipe 12. The steam rises to the top of the glass tube, causing the level gauge to generate a true liquid level reading. This completely eliminates the possibility of water leakage in the level gauge, enabling inspection personnel to accurately and quickly determine the jacket liquid level.

[0026] If the water vapor in the connecting pipe does not condense, it will enter the glass tube level gauge with the steam, causing the level gauge to display a false level. Therefore, an outer fin 2 is provided on the outer wall of the connecting pipe 1. The outer fin 2 exchanges heat with the air and condenses and liquefies the water in the steam. Only pure steam enters the glass tube, and the level gauge can accurately reflect the level in the jacket, avoiding misjudgment.

[0027] refer to Figure 2 The outer fins 2 extend spirally along the axis of the connecting pipe 1 on the outer wall of the connecting pipe 1 and are tightly bonded to the outer wall of the connecting pipe 1. This spiral structure increases the contact area between the outer fins 2 and air, which helps to improve heat exchange efficiency and thus ensures the normal operation of the level gauge.

[0028] The folds 21 of the outer fin 2 are alternately offset to both sides to form a wave shape. This wave-shaped design further increases the surface area of ​​the outer fin 2, enhances the heat exchange capacity, and the wave-shaped structure may generate turbulence in the flow of media such as air, thereby improving the adequacy of heat exchange.

[0029] In this embodiment, the connecting pipe 1 is a circular galvanized pipe, and the outer fins 2 are steel strips, which are welded to the outer wall of the connecting pipe 1. The welding method ensures a firm connection between the outer fins 2 and the connecting pipe 1, preventing the outer fins 2 from easily falling off during operation and ensuring the overall stability and safety of the structure.

[0030] The height of the outer fin 2 is 2-4 cm, and the number of wavy waves on the circumference is 15-20, preferably 12-18, and more preferably 14. In this embodiment, 14 waves are chosen, that is, in an alternating pattern, 7 waves are offset to one side and the other 7 waves are offset to the other side. This wave number setting allows the wavy structure of the outer fin 2 to fully exert its function of increasing surface area and promoting turbulence, without affecting the heat exchange effect or structural stability due to too many or too few waves.

[0031] The height of the outer fin 2 is preferably 2.5~3.5cm, more preferably 3cm, and 3cm is chosen in this embodiment. This height range ensures that the outer fin 2 has sufficient surface area to achieve effective heat exchange, without causing the structure to be too large, increasing costs, or affecting installation due to excessive height.

[0032] The anti-water leakage structure for the jacketed glass tube level gauge provided in Example 1 operates as follows: the inlet end of the connecting pipe 1 is connected to the steam connection pipe 12, and the outlet end is connected to the water connection pipe 11, thus connecting the steam connection pipe 12 and the water connection pipe 11. Steam flows upward within the connecting pipe 1, aiming to enter the glass tube level gauge and rise to the top of the glass tube, causing the level gauge to generate a true liquid level, providing accurate jacket level information for inspection personnel.

[0033] When the steam (containing any entrained moisture) flows within the connecting pipe 1, the outer fins 2 exchange heat with the surrounding air. Due to the cooling effect of the outer fins 2, the uncondensed water vapor in the steam gradually condenses and liquefies. The corrugated design of the outer fins 2 further increases their surface area, enhancing their heat exchange capacity. Simultaneously, the corrugated structure may induce turbulence in the air and other media during flow, improving the adequacy of heat exchange and thus more effectively separating moisture from the steam.

[0034] After being condensed and separated by the outer fins 2, the pure steam continues to flow upward into the glass tube level gauge, while the condensed water remains in the connecting pipe 1 or flows down along the inner wall of the connecting pipe 1, thus preventing it from entering the glass tube level gauge and causing false level displays.

[0035] Example 2

[0036] A structure to prevent water leakage in a jacketed glass tube level gauge, reference Figure 1 It includes a rectangular connecting pipe 1, the inlet end of which is connected to a steam pipe 12, and the outlet end of which is connected to a water pipe 11. The connecting pipe 1 connects the steam pipe 12 and the water pipe 11, thus connecting the steam pipe 12 and the water pipe 11.

[0037] The outer wall of the connecting pipe 1 is provided with several inner fins 3, which are distributed along the axial direction of the connecting pipe 1. The inner fins 3 are either zigzag or wavy. The connecting pipe 1 connects the steam pipe 12 and the water pipe 11. During the steam flow, the inner fins 3 increase the contact area between the steam and the pipe wall inside the connecting pipe 1. By increasing the contact area, the heat exchange between the steam and the pipe wall of the connecting pipe 1 is enhanced, which helps the moisture in the steam to condense more quickly, reduces the amount of moisture carried by the steam entering the glass tube level gauge, thereby preventing water leakage and enabling the level gauge to accurately reflect the liquid level inside the jacket.

[0038] refer to Figure 3 , 4 The inner fins 3 are zigzag-shaped, and multiple staggered grooves 31 are formed on their surface. The cross-section of each groove 31 is trapezoidal, wider at the top and narrower at the bottom, with the bottom of the grooves contacting the inner wall of the connecting pipe 1. The zigzag or wavy structure of the inner fins 3 and the grooves 31 on their surface guide the flow of steam. This allows the steam to form a specific flow pattern within the connecting pipe 1, promoting uniform steam distribution and sufficient heat exchange. It also helps to smoothly guide condensed moisture to the inner wall of the connecting pipe 1 and discharge it, preventing moisture accumulation within the connecting pipe 1.

[0039] Each inner fin 3 has at least 4 grooves 31. A sufficient number of grooves 31 can increase the contact area between the inner fin 3 and the steam, thereby improving the heat exchange efficiency. More grooves 31 mean more heat exchange surface, giving the moisture in the steam more opportunities to condense.

[0040] The width of the bottom of the groove 31 is 0.5~5.0mm. Preferably, the width of the bottom of the groove 31 is 2~4.0mm, more preferably 3mm; in this embodiment, the width of the bottom of the groove 31 is 3mm. The width of the bottom affects the volume and shape of the groove 31. A width of 3mm ensures that the groove 31 can accommodate a certain amount of condensate, while avoiding either excessive width reducing the heat exchange area or excessive narrowness causing difficulty in condensate drainage.

[0041] The included angle between the two side walls of the groove 31 is 6~15°, preferably 8~12°, and in this embodiment, it is 10°. The size of the included angle affects the shape of the groove 31 and the flow characteristics of steam within it. A 10° angle allows the steam to form a reasonable flow path within the groove 31, promoting the condensation and discharge of moisture. A smaller angle may make the steam flow too slow, which is not conducive to moisture condensation; a larger angle may cause turbulent steam flow, affecting the heat exchange effect.

[0042] The distance between two adjacent inner fins is 10.0~20.0mm. The distance between adjacent inner fins 3 affects the size of the steam flow channel and the uniformity of heat exchange within the connecting pipe 1. If the distance is too small, the steam flow resistance increases, which may lead to poor steam flow and affect the heat exchange effect. If the distance is too large, the space within the connecting pipe 1 cannot be fully utilized, reducing the heat exchange efficiency. In this embodiment, the distance between two adjacent inner fins is 15mm to ensure uniform steam flow within the connecting pipe 1 and sufficient heat exchange with the inner fins 3.

[0043] The thickness of the inner fins 3 is 1.0~10.0mm, and the thickness affects its strength and heat exchange performance. Thicker inner fins 3 have better strength and can withstand the impact and thermal stress of steam flow, but they increase the weight and cost of the connecting pipe 1, and may also reduce the steam flow channel, affecting heat exchange efficiency. Thinner inner fins 3 are lighter and cheaper, but their strength may be insufficient, making them prone to deformation or damage. In this embodiment, the thickness of the inner fins 3 is 5mm, which can achieve good heat exchange effect while ensuring strength.

[0044] The structure for preventing water leakage in the jacketed glass tube level gauge provided in this embodiment operates as follows:

[0045] The inlet end of the connecting pipe 1 is connected to the steam connecting pipe 12, and the outlet end is connected to the water connecting pipe 11, forming a channel between the steam connecting pipe 12 and the water connecting pipe 11. The steam in the steam connecting pipe 12 carries a small amount of softened water that may not be completely vaporized into the connecting pipe 1. The steam flows axially within the connecting pipe 1, with the goal of entering the glass tube level gauge through the connecting pipe 1, so that the level gauge displays the true liquid level.

[0046] The presence of the inner fins 3 significantly increases the contact area between the steam and the pipe wall inside the connecting pipe 1. During the flow process, the steam exchanges heat with the inner fins 3 and the grooves 31 on their surface, and the moisture in the steam condenses and liquefies on the low-temperature pipe wall and the surface of the inner fins 3. The moisture in the steam condenses within the grooves 31, forming condensate. The design of the grooves 31 facilitates the formation and accumulation of condensate.

[0047] The shape of the groove 31 and the zigzag or wavy structure of the inner fins 3 guide the flow of steam, causing the steam to form a specific flow pattern within the connecting pipe 1. Under the influence of gravity, the condensate flows along the surface of the groove 31 and the inner fins 3 towards the inner wall of the connecting pipe 1, and is eventually discharged from the connecting pipe 1, reducing the possibility of moisture carried in the steam entering the glass tube level gauge.

[0048] Pure steam enters the glass tube level gauge, enabling it to accurately reflect the liquid level within the jacket and avoiding false level readings caused by cross-contamination, thus providing inspection personnel with accurate liquid level information.

[0049] The present invention has been further described above with reference to specific embodiments. However, it should be understood that the specific description herein should not be construed as limiting the substance and scope of the present invention. Various modifications made by those skilled in the art to the above embodiments after reading this specification are all within the scope of protection of the present invention.

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