Probe structure of glass liquid level meter

Abstract

The utility model discloses a glass liquid level meter probe structure which comprises a first stainless steel tube, the first stainless steel tube is installed on the outer side of the circumference of an alundum tube, a second stainless steel tube is fixedly arranged on the end portion of the alundum tube, and meanwhile a platinum rhodium wire is fixedly embedded in the second stainless steel tube. According to the probe structure of the glass liquid level meter, when the platinum probe needs to be cleaned or replaced, the platinum probe leaves the liquid level detection opening, then the probe is rotated by 90 degrees, glass adhered to the probe can be cleaned, if the probe needs to be replaced, only the stainless steel nut needs to be screwed off, the probe wiring needs to be disassembled, a new probe needs to be replaced, and after the probe is cleaned or replaced, a start button is pressed, so that the platinum probe can be replaced. The probe can rotate by 90 degrees in the opposite direction, and the liquid level can be detected normally; and a series of conditions caused by the fact that the whole liquid level opening is exposed outside when the aluminum oxide brick and the heat preservation blanket need to be taken away when the probe is replaced can be avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of liquid crystal glass processing, specifically to a glass liquid level meter probe structure. BACKGROUND

[0002] In the production process of liquid crystal glass, the molten glass liquid flows from the pool furnace into the channel, and then flows into the muffle furnace, and is formed by the overflow down-drawing method and annealed into a glass plate. In the whole hot end production process, the key to glass forming is to control the draw-off amount, and the key to controlling the draw-off amount is to control the glass liquid level, so it is necessary to monitor the channel liquid level in real time to ensure the stability of the liquid level.

[0003] Usually, platinum probes are used to measure the liquid level. Since the probe needs to continuously, uninterruptedly and periodically measure the liquid level, the probe will stick to the glass liquid, which will affect the liquid level measurement accuracy after a long time. Therefore, the liquid level meter probe needs to be removed and the glass stuck on the probe needs to be cleaned. If the glass stuck on the probe is too much or there is crystallization on the probe, the probe needs to be replaced. Since the liquid level port is small and surrounded by heat preservation bricks, alumina bricks and heat preservation blankets, the alumina bricks and heat preservation blankets need to be removed when replacing the probe. The whole liquid level port is exposed to the outside, the glass liquid temperature fluctuates, and if something falls into the liquid level port, it will contaminate the glass liquid, thus greatly affecting the process. During the installation of the probe by each operator, the tightness of the screw and the position deviation will affect the liquid level measurement. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a glass liquid level meter probe structure to solve the defects mentioned in the background.

[0005] To achieve the above-mentioned purpose, a glass liquid level meter probe structure is provided, which comprises a first stainless steel pipe, the first stainless steel pipe is installed on the outer side of the circumference of a corundum pipe, a second stainless steel pipe is fixedly arranged at the end of the corundum pipe, a platinum rhodium wire is inlaid and fixed in the second stainless steel pipe, a platinum probe is fixedly installed at the bottom of the second stainless steel pipe, the platinum probe is welded and fixed with the platinum rhodium wire, and a third stainless steel pipe is inserted into the right side of the inside of the corundum pipe.

[0006] Preferably, one end of the second stainless steel pipe away from the platinum probe is fixedly connected with the third stainless steel pipe, the third stainless steel pipe is inserted into the inside of the corundum pipe, and the end of the third stainless steel pipe is fixedly bonded in the inside of the corundum pipe by means of a high-temperature resistant adhesive.

[0007] Preferably, the corundum pipe is fixedly bonded in the inside of the first stainless steel pipe by means of a high-temperature resistant adhesive, and the axial section of the first stainless steel pipe, the corundum pipe and the third stainless steel pipe is a concentric circle structure.

[0008] Preferably, the second stainless steel pipe and the third stainless steel pipe are combined to form an "L" shape, and the platinum rhodium wire is sequentially threaded through the corundum pipe, the third stainless steel pipe, the second stainless steel pipe and fixedly connected with the platinum probe.

[0009] Preferably, the top of the platinum probe is provided with a stainless steel gasket, the stainless steel gasket covers the bottom of the second stainless steel pipe, the top of the platinum probe is provided with a stainless steel sleeve, the outside of the bottom of the second stainless steel pipe is provided with a threaded structure, and the outside of the second stainless steel pipe is screwed and fixed with a stainless steel nut.

[0010] Preferably, the platinum probe and the second stainless steel pipe are fixedly connected through the stainless steel sleeve, the stainless steel gasket and the stainless steel nut, the bottom of the platinum probe is provided with a pointed end, and the outside of the top of the second stainless steel pipe is provided with a scale mounting plate.

[0011] Compared with the prior art, the beneficial effects of the utility model are that when the platinum probe needs to be cleaned or replaced, the platinum probe leaves the liquid level detection port, then the probe is rotated by 90°, the probe can be cleaned, if the probe needs to be replaced, only the stainless steel nut is unscrewed, the probe wiring is removed, a new probe is replaced, after the probe is cleaned or replaced, the start button is pressed, the probe is rotated by 90° in the opposite direction, and the liquid level is normally detected; the alumina brick and the thermal blanket do not need to be removed when the probe is replaced, the liquid level port is exposed outside, and a series of situations are avoided. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a front view of the structure of the utility model;

[0013] Figure 2 It is a Figure 1 A-A sectional view of the structure;

[0014] Figure 3 It is a Figure 1 B-B sectional view of the structure;

[0015] Figure 4 It is a Figure 1 C enlarged structure view;

[0016] Figure 5 It is a liquid level detection overall view;

[0017] Figure 6 It is a platinum probe view;

[0018] Figure 7 It is a liquid level detection port view.

[0019] Reference signs in the figure: 1, platinum probe; 2, first stainless steel pipe; 3, second stainless steel pipe; 4, third stainless steel pipe; 5, platinum rhodium wire; 6, stainless steel sleeve; 7, stainless steel gasket; 8, stainless steel nut; 9, corundum pipe; 10, high-temperature-resistant adhesive. DETAILED DESCRIPTION

[0020] Please refer to Figures 1-7 The utility model provides a glass liquid level meter probe structure, including first stainless steel pipe 2, first stainless steel pipe 2 installs at the circumference outside of corundum pipe 9, and the end fixed setting of corundum pipe 9 has second stainless steel pipe 3, and the inside inlaying fixed of second stainless steel pipe 3 has platinum rhodium wire 5, and the bottom fixed mounting of second stainless steel pipe 3 has platinum probe 1, platinum probe 1 is welded fixed with platinum rhodium wire 5, and the inside right side of corundum pipe 9 is inserted with third stainless steel pipe 4.

[0021] The end of third stainless steel pipe 4 is fixed by high-temperature-resistant adhesive 10 in the inside of corundum pipe 9, and corundum pipe 9 is fixed by high-temperature-resistant adhesive 10 in the inside of first stainless steel pipe 2,

[0022] The outside of third stainless steel pipe 4 is welded with scale, and the scale is engraved with scale on the upper surface, and the liquid level height can be visually observed, the stainless steel nut 8 has internal thread, a stainless steel gasket 7 is placed on the upper surface of the stainless steel nut 8, then the platinum probe 1 is placed on the stainless steel gasket 7, and the stainless steel nut 8 is tightened with the second stainless steel pipe 3, the inside of the platinum probe 1 is welded with the platinum rhodium wire 5, and the platinum rhodium wire 5 is connected with the lead wire in the second stainless steel pipe 3, if it is necessary to clean or replace the platinum probe 1, the platinum probe 1 is away from the liquid level detection port, then the probe is rotated by 90°, the probe can be cleaned, if it is necessary to replace the probe, the stainless steel nut 8 is only needed to be unscrewed, the probe wiring is removed, a new probe is replaced, after the cleaning or replacement of the probe is completed, the probe is rotated by 90° in the reverse direction, and the liquid level is normally detected;

[0023] 1. The platinum probe 1 is made of platinum rhodium 20, and the size is determined according to the size of the liquid level port;

[0024] 2. The size and length of the stainless steel pipe are determined according to the distance between the liquid level meter host and the liquid level port, a layer of high-temperature-resistant adhesive 10 is coated on the inner wall surface of the corundum pipe 9, then the corundum pipe is sleeved on the outside of the third stainless steel pipe 4, a layer of high-temperature-resistant adhesive 10 is coated on the outer surface of the corundum pipe 9, then the first stainless steel pipe 2 is sleeved on the corundum pipe 9, and the first stainless steel pipe 2 cannot exceed the corundum pipe to ensure the insulation between the inner and outer stainless steel pipes, and the material of the corundum pipe 9 is alumina;

[0025] 4. The inside of the platinum probe 1 is welded with the platinum rhodium wire 5, the platinum rhodium wire 5 is connected with the terminal in the second stainless steel pipe 3, and the platinum rhodium wire 5 outside the probe is connected with the control system;

[0026] 5. The level gauge support height is related to the standard liquid level line, the standard liquid level line is the liquid level height that needs to be controlled in the production process; the probe is fixed on the shaft with the clamping piece, the clamping piece is flush with the shaft, at this time the distance between the calculation probe and the standard liquid level line is calculated and recorded, and is set as the working position, the standard liquid level line runs up and down 50MM as the probe measurement range; the probe leaves the liquid level port, the distance between the calculation probe and the standard liquid level line is calculated and recorded, and is set as the maintenance position;

[0027] 6. The standard liquid level line is set as 0 point, below 0 point is negative, above 0 point is positive, after the level gauge system starts, the probe will run down, then contact the liquid level and run up, this is a detection cycle, when the probe detects the liquid level turning, the scale on the scale can be recorded, from the scale value, the accuracy of the probe detection value can be verified, if the liquid level rises by 5mm, whether the scale value of the level gauge probe turning position is originally more than 5mm can be observed, so that the accuracy of the level gauge can be judged;

[0028] 7. When the probe needs to be cleaned or replaced, only the maintenance button needs to be pressed on the liquid level control operation box, the probe will leave the liquid level detection port, then rotate 90°, so that the probe can be cleaned, if the probe needs to be replaced, only the stainless steel nut 8 needs to be unscrewed.

[0029] As a preferred embodiment, the second stainless steel pipe 3 is fixedly connected with the third stainless steel pipe 4 away from the end of the platinum probe 1, and the third stainless steel pipe 4 is inserted into the inside of the corundum pipe 9, and the end of the third stainless steel pipe 4 is fixedly bonded in the inside of the corundum pipe 9 by the high-temperature resistant adhesive 10.

[0030] The corundum pipe 9 is fixedly bonded in the inside of the first stainless steel pipe 2 by the high-temperature resistant adhesive 10, and the axial section of the first stainless steel pipe 2, the corundum pipe 9 and the third stainless steel pipe 4 is a concentric circle structure.

[0031] As a preferred embodiment, the second stainless steel pipe 3 and the third stainless steel pipe 4 are combined together to form an "L" shape, and the platinum rhodium wire 5 passes through the corundum pipe 9, the third stainless steel pipe 4 and the second stainless steel pipe 3 in sequence and is fixedly connected with the platinum probe 1.

[0032] The top of the platinum probe 1 is provided with a stainless steel gasket 7, and the stainless steel gasket 7 covers the bottom of the second stainless steel pipe 3, and the top of the platinum probe 1 is provided with a stainless steel sleeve 6, the outside of the bottom of the second stainless steel pipe 3 is provided with a threaded structure, and the outside of the second stainless steel pipe 3 is screw-fixedly provided with a stainless steel nut 8.

[0033] As a preferable embodiment, the platinum probe 1 and the second stainless steel tube 3 are fixedly connected through the stainless steel sleeve 6, the stainless steel gasket 7 and the stainless steel nut 8, and the bottom of the platinum probe 1 is provided with a pointed end, and the top outside of the second stainless steel tube 3 is provided with a scale mounting plate.

Claims

1. A glass level gauge probe structure comprising a first stainless steel tube (2), characterised in that: The first stainless steel pipe (2) is installed on the outer side of the circumference of the corundum pipe (9), and the second stainless steel pipe (3) is fixedly arranged at the end of the corundum pipe (9), and the inside of the second stainless steel pipe (3) is inlaidly fixed with the platinum rhodium wire (5), and the bottom of the second stainless steel pipe (3) is fixedly installed with the platinum gold probe (1), the platinum gold probe (1) is welded and fixed with the platinum rhodium wire (5), and the inside of the right side of the corundum pipe (9) is inserted with the third stainless steel pipe (4).

2. A glass level probe structure according to claim 1, wherein: The end of the second stainless steel pipe (3) away from the platinum gold probe (1) is fixedly connected with the third stainless steel pipe (4), and the third stainless steel pipe (4) is inserted into the inside of the corundum pipe (9), and the end of the third stainless steel pipe (4) is fixedly bonded in the inside of the corundum pipe (9) through the high-temperature-resistant adhesive (10).

3. The glass level gauge probe structure according to claim 1, characterized in that: The corundum pipe (9) is fixedly bonded in the inside of the first stainless steel pipe (2) through the high-temperature-resistant adhesive (10), and the axial section of the first stainless steel pipe (2), the corundum pipe (9) and the third stainless steel pipe (4) is a concentric circle structure.

4. The glass level gauge probe structure according to claim 2, characterized in that: The second stainless steel pipe (3) and the third stainless steel pipe (4) are combined to form an "L" shape, and the platinum rhodium wire (5) passes through the corundum pipe (9), the third stainless steel pipe (4) and the second stainless steel pipe (3) in sequence and is fixedly connected with the platinum gold probe (1).

5. The glass level gauge probe structure according to claim 1, characterized in that: The top of the platinum gold probe (1) is provided with a stainless steel gasket (7), and the stainless steel gasket (7) covers the bottom of the second stainless steel pipe (3), and the top of the platinum gold probe (1) is provided with a stainless steel sleeve (6), the bottom of the second stainless steel pipe (3) is provided with a threaded structure, and the outside of the second stainless steel pipe (3) is screwed and fixed with a stainless steel nut (8).

6. The glass level probe structure of claim 1, wherein: The platinum gold probe (1) and the second stainless steel pipe (3) are fixedly connected through the stainless steel sleeve (6), the stainless steel gasket (7) and the stainless steel nut (8), and the bottom of the platinum gold probe (1) is provided with a sharp end, and the outside of the top of the second stainless steel pipe (3) is provided with a scale mounting plate.

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