Leakage-proof structure at flange joint of liquid level meter

Abstract

The utility model provides an anti-leakage structure at the flange connecting position of a liquid level meter, and relates to the technical field of liquid level meters. The liquid level meter comprises a liquid level meter buoy, two connecting barrels communicated with the upper portion and the lower portion of the liquid level meter buoy, two reinforcing blocks arranged between the two connecting barrels and the liquid level meter buoy respectively, flow channels communicated with the connecting barrels and the liquid level meter buoy are arranged in the reinforcing blocks, and the reinforcing blocks are welded to the liquid level meter buoy and the connecting barrels. A protective sleeve is arranged outside the connecting cylinder, and the two ends of the protective sleeve are connected with the outer wall of the liquid level meter buoy and the flange of the connecting cylinder respectively. Chloride ion aggregation caused by a dead zone of the connecting cylinder is prevented, and structure corrosion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid level gauges, in particular to an anti-leakage structure at a flange connection of a liquid level gauge. Background Art

[0002] Magnetic flap level gauges can be used to detect the liquid level of media in various towers, tanks, tanks, spherical containers, boilers and other equipment. This series of level gauges can achieve high sealing, leak prevention and are suitable for high temperature, high pressure and corrosion-resistant occasions. It makes up for the defects of glass plate (tube) level gauges such as poor indication clarity and easy breakage. There is no blind spot in the whole measurement process, with clear display and a large measurement range.

[0003] At present, in the production process of polysilicon and chemical industry, magnetic flap level gauges are mostly used as on-site level gauges. In the measurement of liquid level in storage tanks with corrosive media, especially media containing chloride ions, the upper and lower flange weld joints of the magnetic flap level gauge are not smooth, resulting in a dead zone at the connecting pipe position. The medium does not flow in the dead zone, and chloride ions easily accumulate to cause structural corrosion. Cracks appear at the flange connection position, and materials leak, affecting the normal production of the process. In serious cases, personnel safety accidents may occur. Utility Model Content

[0004] The utility model aims to develop an anti-leakage structure at the flange connection of a level gauge, which can prevent the dead zone in the connection tube from causing chloride ion accumulation and avoid structural corrosion.

[0005] The utility model is achieved through the following technical solutions:

[0006] A liquid level gauge flange connection anti-leakage structure, comprising:

[0007] Liquid level gauge float;

[0008] Two connecting tubes are connected to the upper and lower parts of the level gauge float;

[0009] Two reinforcement blocks are respectively arranged between the two connecting tubes and the float of the liquid level gauge;

[0010] Wherein, a flow channel communicating with the connecting tube and the level gauge float is provided in the reinforcing block, and the reinforcing block is welded to the level gauge float and the connecting tube;

[0011] A protective sleeve is provided on the outside of the connecting tube, and two ends of the protective sleeve are respectively connected to the outer wall of the liquid level gauge float and the flange of the connecting tube.

[0012] Optionally, the flow channel of the reinforcement block on the side close to the liquid level gauge float is a truncated cone-shaped expansion structure, and the end with a larger inner diameter is connected to the liquid level gauge float.

[0013] Optionally, the inner diameter of the end portion of the reinforcing block flow channel communicating with the connecting tube is adapted to the inner diameter of the connecting tube.

[0014] Optionally, the outer dimensions of the reinforcement block gradually decrease from the middle to both sides, and the outer wall of the reinforcement block close to the liquid level gauge float is truncated cone-shaped and the smaller end is connected to the liquid level gauge float.

[0015] Optionally, the angle between the outer wall of the reinforcement block close to the side of the liquid level gauge float and the outer wall of the liquid level gauge float is fifty degrees.

[0016] Optionally, a pressure detection gauge is provided on the protective sleeve.

[0017] Optionally, a groove is provided at the bottom of the protective sleeve, a transparent observation piece is provided in the groove, and a test paper is provided on the observation piece.

[0018] Optionally, the slot is opened along an axial direction parallel to the protective sleeve, and the test paper is a chlorine test paper.

[0019] Optionally, a connecting pipe is provided between the two protective sleeves, and a pressure detection gauge is provided on one of the protective sleeves.

[0020] Optionally, the connecting pipe is provided with a plurality of reinforcing rods connected to the liquid level gauge float.

[0021] The beneficial effects of the utility model are:

[0022] The utility model provides a reinforcing block so that there is no dead zone in the connecting tube, avoids chloride ion accumulation to cause structural corrosion, and prevents material leakage. Even if material leakage occurs, the provided protective sleeve can serve as a second line of defense to block the leaked material, avoiding personnel safety accidents caused by material leakage. The provided pressure detection gauge detects the pressure change in the protective sleeve to monitor whether the material is leaking. The condition of the connecting tube can be observed through the observation piece. The detection paper on the observation piece can make the leaked material appear in color, which is convenient for personnel to observe the material leakage. A connecting pipe can be provided between the two protective sleeves, and a plurality of reinforcing rods are provided between the connecting pipe and the liquid level gauge float, which improves the structural stability of the protective sleeve, reduces the use of pressure detection gauges, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present application 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 application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0024] Figure 1 This is a structural diagram of Example 1 of the utility model;

[0025] Figure 2 for Figure 1 Middle AA view;

[0026] Figure 3 This is a structural diagram of Example 2 of the present utility model.

[0027] Figure numerals: 1. Liquid level gauge float; 2. Reinforcement block; 3. Connecting tube; 4. Protective sleeve; 5. Pressure detection gauge; 6. Connecting pipe; 7. Reinforcement rod. DETAILED DESCRIPTION

[0028] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0029] The disclosure below provides many different embodiments or examples for realizing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. In addition, the present invention may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplicity and clarity and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides examples of various specific processes and materials, but those of ordinary skill in the art will appreciate the application of other processes and / or the use of other materials.

[0030] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0031] Example 1

[0032] like Figure 1 and Figure 2 As shown, this embodiment discloses a liquid level gauge flange connection anti-leakage structure, comprising a liquid level gauge float 1, with connecting tubes 3 connected to the upper and lower portions thereof, respectively, and flanges provided at the ends of the connecting tubes 3. The liquid level gauge is conventional, and other structures, including the magnetic float and magnetic flap, are not further described.

[0033] A reinforcing block 2 is provided at the welding position between the connecting tube 3 and the liquid level gauge float 1 , the reinforcing block 2 is welded to the liquid level gauge float 1 , and the connecting tube 3 is welded to the reinforcing block 2 .

[0034] Reinforcement block 2 has a corresponding flow channel inside, connecting to connecting tube 3 and level gauge float 1. The channel near the level gauge float 1 has a frustoconical flared structure, with the end with the larger inner diameter connecting to the level gauge float 1. The inner diameter of the end of the reinforcing block 2 where the flow channel connects to the connecting tube 3 is adapted to the inner diameter of the connecting tube 3. The connection between the flow channel and the connecting tube 3 is polished to a smooth surface without sharp corners to avoid dead zones and reduce chloride ion accumulation.

[0035] The outer dimensions of the reinforcement block 2 gradually decrease from the middle to both sides. The outer wall of the reinforcement block 2 close to the liquid level gauge float 1 is frustum-shaped and the smaller end is connected to the liquid level gauge float 1. The angle between the outer wall of the reinforcement block 2 close to the liquid level gauge float 1 and the outer wall of the liquid level gauge float 1 is fifty degrees.

[0036] A protective sleeve 4 is provided outside the reinforcing block 2 , which covers the connecting tube 3 inside. Both ends of the protective sleeve 4 are respectively connected to the outer wall of the liquid level gauge float 1 and the flange of the connecting tube 3 , forming a sealed space inside the protective sleeve 4 .

[0037] A pressure detection gauge 5 is provided on the protective sleeve 4, which can be interlocked with the alarm system for control. A strip-shaped slot parallel to its axis is provided at the bottom of the protective sleeve 4, and a transparent and corrosion-resistant observation piece is provided in the slot. The observation piece is in an arc shape that matches the protective sleeve 4. A test paper is provided on the observation piece, and the test paper is placed in the middle of the observation piece along the length direction of the observation piece. The test paper can be a chlorine test paper. Depending on the type of medium, the test paper can also be other test paper that makes the leaking material appear colored.

[0038] The connecting tube 3, the liquid level gauge float 1 and the reinforcing block 2 are all made of hafnium alloy C276, which improves the resistance to chloride ion corrosion.

[0039] The flow channel within the reinforcement block 2 is smoothly connected to the connecting tube 3, preventing dead zones that could lead to chloride ion accumulation and structural corrosion. The reinforcement block 2 also improves the structural stability between the connecting tube 3 and the level gauge float 1. If a leak occurs at the connection between the connecting tube 3 and the level gauge float 1, the protective sleeve 4 acts as a secondary barrier, trapping the leaking material inside and preventing it from leaking into the external environment and potentially causing a safety hazard. The pressure gauge 5 is installed to promptly detect material leakage. The interior of the protective sleeve 4 can also be viewed through an observation piece. Leaking material will fall onto a test strip, which will display color. The color change on the test strip allows for accurate identification of leakage.

[0040] Example 2

[0041] like Figure 3 As shown, the difference between this embodiment and embodiment 1 is that a connecting pipe 6 is provided between the protective sleeves 4 outside the two connecting cylinders 3, and only one protective sleeve 4 is provided with a pressure detection gauge 5.

[0042] The connecting pipe 6 is vertically arranged, with its top and bottom ends respectively connected to the two protective sleeves 4. Through the connecting pipe 6, the two protective sleeves 4 are connected, allowing them to share a single pressure gauge 5, reducing the number of pressure gauges 5 used and lowering costs. The connecting pipe 6 is provided with multiple reinforcing rods 7 connected to the liquid level gauge float 1. The reinforcing rods 7 enhance the structural stability of the protective sleeves 4 and the connecting pipe 6.

[0043] The above embodiments are only preferred embodiments of the present invention and are not limitations on the technical solutions of the present invention. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present invention.

Claims

1. A liquid level gauge flange connection anti-leakage structure, characterized in that: include: Liquid level gauge float; Two connecting tubes are connected to the upper and lower parts of the level gauge float; Two reinforcement blocks are respectively arranged between the two connecting tubes and the float of the liquid level gauge; Wherein, a flow channel communicating with the connecting tube and the level gauge float is provided in the reinforcing block, and the reinforcing block is welded to the level gauge float and the connecting tube; A protective sleeve is provided on the outside of the connecting tube, and two ends of the protective sleeve are respectively connected to the outer wall of the liquid level gauge float and the flange of the connecting tube.

2. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 1, characterized in that: The flow channel of the reinforcing block on the side close to the liquid level gauge float is a truncated cone-shaped expansion structure, and the end with a larger inner diameter is communicated with the liquid level gauge float.

3. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 1, characterized in that: The inner diameter of the end portion of the reinforcing block flow channel communicating with the connecting tube is adapted to the inner diameter of the connecting tube.

4. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 1, characterized in that: The outer dimensions of the reinforcement block gradually decrease from the middle to both sides. The outer wall of the reinforcement block close to the liquid level gauge float is in a truncated cone shape, and the smaller end is connected to the liquid level gauge float.

5. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 4, characterized in that: The included angle between the outer wall of the reinforcement block close to the side of the liquid level gauge float and the outer wall of the liquid level gauge float is fifty degrees.

6. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 1, characterized in that: A pressure detection gauge is provided on the protective sleeve.

7. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 1, characterized in that: A slot is provided at the bottom of the protective sleeve, a transparent observation sheet is provided in the slot, and a detection test paper is provided on the observation sheet.

8. The anti-leakage structure at the flange connection of the liquid level gauge according to claim 7, characterized in that: The slot is opened along an axial direction parallel to the protective sleeve, and the test paper is a chlorine test paper.

9. The anti-leakage structure of the flange connection of the liquid level gauge according to claim 1, characterized in that: A connecting pipe is provided between the two protective sleeves, and a pressure detection gauge is provided on one of the protective sleeves.

10. The anti-leakage structure at the flange connection of the liquid level gauge according to claim 9, characterized in that: The connecting pipe is provided with a plurality of reinforcing rods connected with the float of the liquid level gauge.

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