Slurry tank capable of replacing fault liquid level meter on line

Abstract

The utility model discloses a slurry tank capable of replacing a fault liquid level meter on line, which comprises a slurry tank body, a flange liquid level meter arranged on the slurry tank body, a spare hole arranged on the slurry tank body, a blind cover arranged on the spare hole, a radar liquid level meter arranged in the spare hole, and a liquid level meter arranged on the blind cover. A connecting mechanism is arranged between the spare hole and the radar liquid level meter, and the radar liquid level meter is detachably arranged in the spare hole through the connecting mechanism. The problem that a single liquidometer of the slurry tank cannot be replaced on line when breaking down is solved, normal use of an original device is not affected, cost is low, operation is easy and convenient, and maintenance is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry tanks for polyester melt direct spinning, in particular to a slurry tank capable of replacing a faulty liquid level gauge online. Background Art

[0002] At present, in the polyester melt spinning polyester production process, the slurry tank of the slurry mixing system generally adopts a single flange level gauge, and generally only one is installed. It is installed at the bottom of the tank, and the detection surface of the level gauge is in direct contact with the material. Once a failure occurs, it cannot be replaced online, and the only option is to reduce production or stop the process. When replacing, the material needs to be emptied. Therefore, it is necessary to add a level gauge that can be replaced online to the slurry tank to solve this kind of accident problem. Summary of the invention

[0003] In order to solve one or some technical problems existing in the prior art, the purpose of this application is to provide a slurry tank with a faulty liquid level gauge that can be replaced online, which solves the problem that a single liquid level gauge in a slurry tank cannot be replaced online due to a fault, does not affect the normal use of the original device, and has low cost, easy operation and convenient maintenance.

[0004] In order to solve the above existing technical problems, this application adopts the following technical solutions:

[0005] A slurry tank with an online replacement of a faulty liquid level gauge comprises a slurry tank body, a flange liquid level gauge arranged on the slurry tank body, a spare hole arranged on the slurry tank body, and a blind cover arranged on the spare hole, wherein a radar liquid level gauge is arranged in the spare hole, a connecting mechanism is provided between the spare hole and the radar liquid level gauge, and the radar liquid level gauge is detachably arranged in the spare hole through the connecting mechanism.

[0006] Preferably, the connecting mechanism includes a stainless steel pipe with a diameter ≤ the inner diameter of the spare hole, a first flange arranged at the lower end of the stainless steel pipe, and a second flange arranged at the upper end of the stainless steel pipe. The radar level meter is fixed inside the stainless steel pipe through the first flange, and the stainless steel pipe is installed between the spare hole and the blind cover through the second flange.

[0007] Preferably, the first flange is embedded and welded to the bottom of the stainless steel pipe.

[0008] Preferably, the length of the stainless steel pipe is ≥ the sum of the heights of the first flange and the radar level gauge.

[0009] Preferably, a polytetrafluoroethylene gasket is provided between the first flange and the radar level gauge, and a polytetrafluoroethylene gasket is provided on both sides of the second flange.

[0010] Preferably, the upper end of the stainless steel pipe is sealed by the blind cover, and a threading hole is provided on the top of the blind cover.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] A set of radar level gauges is installed on the original spare hole on the top of the slurry tank body, which solves the problem that a single level gauge of the slurry tank cannot be replaced online when it fails. It can also be technically modified online without affecting the normal use of the original device. The modification cost is low, the operation is simple, and the maintenance is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a cross-sectional view of the connection structure of the radar level gauge and the spare hole in the utility model;

[0015] In the figure: 1. Flange level gauge; 2. Slurry tank body; 3. Connection mechanism; 4. Blind cover; 5. Spare hole; 6. Radar level gauge; 7. PTFE gasket; 8. First flange; 9. Stainless steel pipe; 10. Second flange; 11. Threading hole. DETAILED DESCRIPTION

[0016] Below, the present application is further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0017] In the description of the present application, it should be understood that the terms "up", "down", "left", "right", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present application.

[0018] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0019] like Figure 1As shown, a slurry tank with a faulty level gauge that can be replaced online includes a slurry tank body 2, a flange level gauge 1 arranged on the slurry tank body 2, a spare hole 5 arranged on the slurry tank body 2, and a blind cover 4 arranged on the spare hole 5. A radar level gauge 6 is provided in the spare hole 5, and a connecting mechanism 3 is provided between the spare hole 5 and the radar level gauge 6. The radar level gauge 6 is detachably arranged in the spare hole 5 through the connecting mechanism 3.

[0020] In the actual production process, since the flange level gauge 1 is located at the bottom of the slurry tank body 2, it is not convenient to replace. Therefore, in order to accurately detect the liquid level height in the slurry tank body 2, it is necessary to add a level gauge on the original basis. According to our discovery, there is a spare hole 5 sealed by a blind cover 4 on the top of the slurry tank body 2. The spare hole 5 can generally be used for injecting waste materials, etc. This improvement uses the spare hole 5 to add a radar level gauge 6, wherein the radar level gauge 6 is installed in the spare hole 5 through the connecting mechanism 3, and when the radar level gauge 6 is disassembled and replaced, it can be taken out more conveniently. The radar level gauge 6 is installed in the spare hole 5 and sealed by the blind cover 4. The liquid level inside the slurry tank body 2 is detected by the radar level gauge 6, thereby solving the problem that the liquid level cannot be monitored in time when the flange level gauge 1 is damaged. At the same time, when the radar level gauge 6 needs to be replaced, it can be replaced online without stopping the machine, which effectively solves the problem that the level gauge cannot be replaced online, and can be technically modified online without affecting the normal use of the original device. The modification cost is low, the operation is simple, and the maintenance is convenient.

[0021] Further improvement is as follows: Figure 2 As shown, the connecting mechanism 3 includes a stainless steel pipe 9 with a diameter ≤ the inner diameter of the spare hole 5, a first flange 8 provided at the lower end of the stainless steel pipe 9, and a second flange 10 provided at the upper end of the stainless steel pipe 9. The radar level gauge 6 is fixed inside the stainless steel pipe 9 through the first flange 8, and the stainless steel pipe 9 is installed between the spare hole 5 and the blind cover 4 through the second flange 10.

[0022] The diameter of the stainless steel pipe 9 is ≤ the inner diameter of the spare hole 5, so that the stainless steel pipe 9 can be extended into the interior of the slurry tank body 2, so that the detection is more accurate, and the radar level meter 6 is fixed inside the stainless steel pipe 9 through the first flange 8, which can effectively protect the shell of the radar level meter 6 through the stainless steel pipe 9 to avoid damage. At the same time, the second flange 10 at the upper end of the stainless steel pipe 9 can be suspended and installed between the spare hole 5 and the blind cover 4. After being sealed by the blind cover 4, the purpose of easy fixing and easy removal is achieved.

[0023] A further improvement is that the first flange 8 is embedded and welded to the bottom of the stainless steel pipe 9; the length of the stainless steel pipe 9 is ≥ the sum of the heights of the first flange 8 and the radar level meter 6.

[0024] The first flange 8 is embedded and welded at the bottom of the stainless steel pipe 9, which can make the sealing of the two better and the connection firmer. At the same time, the length of the stainless steel pipe 9 is the height of the first flange 8 and the radar level gauge 6, which can make the stainless steel pipe 9 reach the installation of the first flange 8 and the radar level gauge 6 with the shortest length.

[0025] A further improvement is that a polytetrafluoroethylene gasket 7 is provided between the first flange 8 and the radar level gauge 6 , and a polytetrafluoroethylene gasket 7 is provided on both sides of the second flange 10 .

[0026] The PTFE gasket 7 can effectively seal the open joints at both ends of the stainless steel pipe 9, thereby ensuring the working stability of the radar level meter 6 and avoiding damage due to external factors.

[0027] A further improvement is that the upper end of the stainless steel pipe 9 is sealed by the blind cover 4, and the top of the blind cover 4 is provided with a threading hole 11. The radar level meter 6 can achieve long-term operation and avoid power failure.

[0028] For example: the spare hole 5 on the top of the original slurry tank body 2 is DN125. Therefore, when selecting the radar level gauge 6, the radar level gauge 6 with a flange size of DN100 is used. When selecting the stainless steel pipe 9, firstly, according to the overall length of the radar level gauge 6 plus the thickness of the first flange 8 connected to DN100, a DN125 stainless steel pipe 9 of the same height is cut. The lower end of the stainless steel pipe 9 is cut to a suitable size according to the outer diameter of the flange of the radar level gauge 6 and welded with a DN100 flange. A DN125 stainless steel flange is welded on the upper end. Then, the radar level gauge 6 and the first flange 8 at the lower end are fixed and sealed with a DN100 polyfluoro gasket 7 and bolts. Then, the whole device is placed in the spare hole 5, contacted with the port of the spare hole 5 through the second flange 10, and fixed and sealed with a DN125 blind plate and two DN125 polyfluoro gaskets 7. It can be technically modified online without affecting the normal use of the original device. The modification cost is low, the operation is simple, and the maintenance is convenient.

[0029] The above-mentioned implementation modes are only preferred implementation modes of the present application and cannot be used to limit the scope of protection of the present application. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present application shall fall within the scope of protection required by the present application.

Claims

1. A slurry tank capable of replacing a faulty liquid level gauge online, comprising a slurry tank body (2), a flange liquid level gauge (1) arranged on the slurry tank body (2), a spare hole (5) arranged on the slurry tank body (2), and a blind cover (4) arranged on the spare hole (5), characterized in that: A radar level meter (6) is arranged in the spare hole (5), a connecting mechanism (3) is arranged between the spare hole (5) and the radar level meter (6), and the radar level meter (6) is detachably arranged in the spare hole (5) via the connecting mechanism (3).

2. A slurry tank capable of replacing a faulty liquid level gauge online according to claim 1, characterized in that: The connecting mechanism (3) comprises a stainless steel pipe (9) having a diameter less than or equal to the inner diameter of the spare hole (5), a first flange (8) provided at the lower end of the stainless steel pipe (9), and a second flange (10) provided at the upper end of the stainless steel pipe (9); the radar level gauge (6) is fixed inside the stainless steel pipe (9) via the first flange (8); and the stainless steel pipe (9) is installed between the spare hole (5) and the blind cover (4) via the second flange (10).

3. A slurry tank capable of replacing a faulty liquid level gauge online according to claim 2, characterized in that: The first flange (8) is embedded and welded at the bottom of the stainless steel pipe (9).

4. A slurry tank capable of replacing a faulty liquid level gauge online according to claim 3, characterized in that: The length of the stainless steel pipe (9) is greater than or equal to the sum of the heights of the first flange (8) and the radar level meter (6).

5. A slurry tank capable of replacing a faulty liquid level gauge online according to claim 4, characterized in that: A polytetrafluoroethylene gasket (7) is provided between the first flange (8) and the radar level gauge (6), and a polytetrafluoroethylene gasket (7) is provided on both sides of the second flange (10).

6. A slurry tank capable of replacing a faulty liquid level gauge online according to any one of claims 2 to 5, characterized in that: The upper end of the stainless steel pipe (9) is sealed by the blind cover (4), and a threading hole (11) is provided on the top of the blind cover (4).

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