Glass kiln gas blowing liquid level monitoring system

Abstract

The utility model relates to the technical field of spine external support, and discloses a glass kiln gas blowing liquid level monitoring system, which comprises a fan and a glass liquid level in a kiln, the fan is sequentially connected with a gas storage tank, a flow regulating valve, a flow meter and a three-way piece through a gas pipeline, a liquid level detection hole is arranged in the kiln, a gas blowing pipe is inserted in the liquid level detection hole, and the gas blowing pipe is connected with the gas storage tank through a gas pipeline. The bottom end of the air blowing pipe is slightly away from the normal glass liquid level, a pressure feedback air path is arranged at the upper end of the air blowing pipe, a differential pressure transmitter is connected to the air blowing pipe, the other end of the differential pressure transmitter extends into the kiln, the differential pressure transmitter is electrically connected with a charging machine through a wire, and the charging machine is electrically connected with the air blowing pipe. The relative height change of the glass liquid level and the bottom end of the blowing pipe is monitored through the pressure difference change of the interior of the blowing pipe and the kiln space, and the problem that in the prior art, a traditional probe detection mode is prone to being affected by high temperature and mechanical faults, and consequently the product quality is reduced is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of spine external support, more particularly to glass kiln blowing liquid level monitoring system. BACKGROUND

[0002] In the production of glass kiln, it is important to keep "four stabilities", one of which is the stability of glass liquid level. To achieve the stability of glass liquid level in the kiln, the glass kiln liquid level must be accurately detected first, and then the automatic interlocking of glass liquid level and the amount of feeding is realized to reduce human interference factors.

[0003] Currently, the market mainly uses detection needles to detect glass liquid, and uses a motor to drive the platinum to move up and down, so that the detection needle and the glass liquid generate a loop position, and the analog quantity is converted into an analog quantity through a transmitter to display the glass liquid level on the instrument. Because it involves mechanical transmission, the measurement error is too large, the environment is high temperature, and the mechanical failure is high, which often affects the product quality. A bubble type liquid level meter appears on the market, which inserts a platinum tube into the glass liquid, and blows air bubbles into the glass liquid to establish a bubble pressure and glass liquid height equivalent balance relationship, and converts the pressure into the glass liquid level. The liquid level meter has potential hazards such as corrosion of the platinum tube, increase of the glass liquid bubble, and reduction of the glass liquid quality. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a glass kiln blowing liquid level monitoring system to solve the problems in the above background technology.

[0005] The utility model provides the following technical scheme: a glass kiln blowing liquid level monitoring system, comprising a fan and a glass liquid surface in a kiln, characterized in that the fan is connected with a gas storage tank, a flow regulating valve, a flow meter and a three-way piece through a gas pipeline in sequence, the kiln is provided with a liquid level detection hole, a blowing pipe is inserted into the liquid level detection hole, the bottom end of the blowing pipe is a small distance above the normal glass liquid level, the upper end of the blowing pipe is provided with a pressure feedback gas circuit, a differential pressure transmitter is connected with the blowing pipe, the other end of the differential pressure transmitter extends to the inside of the kiln, and the differential pressure transmitter is electrically connected with a feeding machine through wires. The relative height change between the glass liquid surface and the bottom end of the blowing pipe is monitored by the pressure difference change in the blowing pipe and the space of the kiln, and then the size of the feeding of the feeding machine is realized to stabilize the liquid level of the kiln, effectively solving some problems in the prior art.

[0006] Further, the blowing pipe is composed of inorganic materials that are resistant to high temperature, corrosion and erosion, and do not pollute the glass liquid, and the main material of the blowing pipe is corundum pipe. The above structure improves the high temperature resistance, corrosion resistance and erosion resistance of the blowing pipe, avoids deformation, corrosion or pollution of the blowing pipe caused by high temperature glass liquid, thereby prolonging the service life of the equipment and ensuring the purity of the glass products.

[0007] Further, the blowing pipe inner diameter is controlled between ￠5-￠50mm, and its wall thickness is 1-10mm, and the length is about the kiln space height + kiln space brick thickness x 2 times. The above size limitation defines the inner diameter, wall thickness and length of the blowing pipe, so that the blowing pipe can ensure appropriate air flow and stability, can adapt to different kiln size requirements, and can avoid measurement error caused by too long or too short, and improve detection accuracy and applicability.

[0008] Further, the upper part of the blowing pipe is connected with the three-way piece, the upper part of the three-way piece is connected with the air pipe, one side of the differential pressure transmitter is connected with the pressure feedback air path, and the air pipe and the pressure feedback air path adopt soft connection. The above structure ensures that the pressure of the blowing system can be stably transmitted to the differential pressure transmitter, and the soft connection is adopted to reduce the influence of mechanical stress on measurement, improve the stability and adaptability of the system, and avoid error caused by equipment vibration or thermal expansion and cold contraction.

[0009] Further, the top end of the kiln is fixedly installed with a blowing pipe support, a screw rod is fixedly installed on the blowing pipe support, a gas pipe fixing connecting rod bolt is arranged on the screw rod, and the three-way piece is installed on the screw rod through the gas pipe fixing connecting rod bolt. The upper end of the screw rod is provided with a handle, and a scale is installed on the blowing pipe support. The above structure enables the blowing pipe to be adjusted in height on the blowing pipe support through the screw rod, and the cooperation of the handle and the scale makes the adjustment process more intuitive and accurate, so that the relative distance between the bottom end of the blowing pipe and the glass liquid surface is always in the best range, thereby improving the detection accuracy and adapting to the change requirements of different kiln liquid levels.

[0010] The technical effects and advantages of the utility model are as follows:

[0011] 1. The utility model discloses a three-way piece, blowing pipe, differential pressure transmitter, feeding machine are set up, and the relative height change of glass liquid surface and blowing pipe bottom end is monitored through the pressure difference change in blowing pipe inner and kiln space, and then the feeding size of feeding machine is given, realizes the stability of kiln liquid level, and effectively solves some defects and problems in prior art in background art.

[0012] 2. The utility model discloses a corundum pipe as the main material of blowing pipe, can significantly improve its high temperature resistance, corrosion resistance, and ensure long-term stable operation, and its excellent erosion resistance can effectively reduce the erosion of glass liquid to the pipe wall, prolong the service life of the equipment. ACCURACY

[0013] Figure 1 It is the liquid level detection process schematic diagram of the patent.

[0014] Figure 2 It is the blowing pipe installation positioning schematic diagram.

[0015] The reference signs are: 1, fan 2, gas pipeline; 3, gas storage tank; 4, flow regulating valve; 5, flow meter; 6, tee assembly; 7, blowing pipe; 8, differential pressure transmitter; 9, charging machine; 10, kiln space; 11, kiln glass liquid level; 12, gas supply hose; 13, kiln pressure feedback hose; 61, tee pressure feedback joint; 71, handle; 72, gas pipe fixing connecting rod bolt; 73, screw rod; 74, scale; 75, blowing pipe support. DETAILED DESCRIPTION

[0016] The technical solutions in the utility model will be described clearly and completely below with reference to the drawings in the utility model. Example one:

[0017] With reference to Figure 1 and Figure 2 The utility model provides a glass kiln blowing liquid level monitoring system, including fan 1 and kiln 10 in glass liquid level 11, its characterized in that fan 1 passes through gas pipeline 2 and connects gas storage tank 3, flow regulating valve 4, flow meter 5, tee piece 6 in proper order, and kiln 10 in is provided with liquid level detection hole, and liquid level detection hole inserts and installs blowing pipe 7, and the bottom end of blowing pipe 7 is at a small distance above normal glass liquid level, and the upper end of blowing pipe 7 is equipped with pressure feedback gas circuit, and blowing pipe 7 is connected with differential pressure transmitter 8, and the other end of differential pressure transmitter 8 extends to the inside of kiln 10, and differential pressure transmitter 8 is connected with power through wire and charging machine 9.

[0018] Blowing pipe 7 is inorganic material composition of high temperature resistance, corrosion resistance, scouring and not polluting glass liquid, and the main material of blowing pipe 7 is corundum pipe.

[0019] The inner diameter of blowing pipe 7 is controlled between 5-50mm, and its wall thickness is 1-10mm, and the length is about kiln space height + kiln space brick thickness × 2 times.

[0020] The upper side of blowing pipe 7 is connected with tee piece 6, and the upper side of tee piece 6 is connected with gas pipe 12, and one side of differential pressure transmitter 8 is connected with pressure feedback gas circuit 13, and gas pipe 12 and pressure feedback gas circuit 13 adopt soft connection.

[0021] Working principle: fan 1 through the gas tank 3 into the flow regulating valve 4 and flow meter 5, produce constant flow of air, air from the glass liquid surface through the bottom of the blow pipe exhaust; blow pipe 7 from the glass liquid surface is close, namely the liquid level rises, air discharge resistance increases, the air supply pressure rises, when the glass liquid surface is reduced, the bottom of the blow pipe 7 from the glass liquid surface distance increases, air resistance decreases, air supply pressure also decreases accordingly. Three way piece 6 on the pipeline will air pressure feedback to the differential pressure transmitter 8 to detect the change of pressure, will signal to the feeder 9, realize the feeder 9 feeding quantity increase and decrease, and then reach the glass liquid level and the interlocking control of the amount of feeding. The other end of the differential pressure transmitter 8 of the pipeline is connected to the kiln space 10, to compensate the influence of the pressure change of kiln space 10 on the blow pipe pressure. Example two:

[0022] Referring to Figure 1 , the difference between example two and example one is that the top of the kiln is fixedly provided with a blow pipe support 75, the blow pipe support 75 is fixedly provided with a screw rod 73, the screw rod 73 is provided with a gas pipe fixing connecting rod bolt 72, the three way piece 6 is installed on the screw rod 73 through the gas pipe fixing connecting rod bolt 72, the upper end of the screw rod 73 is provided with a handle 71, and the blow pipe support 75 is provided with a scale 74.

Claims

1. A glass furnace air blowing liquid level monitoring system, comprising a fan (1) and a glass liquid surface (11) in a furnace (10), characterized in that, The fan (1) is connected in sequence by gas pipeline (2) gas tank (3), flow regulating valve (4), flow meter (5), tee piece (6), the kiln (10) is internally provided with liquid level detection hole, the liquid level detection hole is inserted with blowing pipe (7), the bottom end of blowing pipe (7) is above normal glass liquid level with a small distance, the upper end of blowing pipe (7) is provided with pressure feedback gas circuit, blowing pipe (7) is connected with differential pressure transmitter (8), the other end of differential pressure transmitter (8) extends to the inside of kiln (10), differential pressure transmitter (8) is connected with feeder (9) by wire.

2. The glass melter gas blow level monitoring system of claim 1, wherein: The blowing pipe (7) is composed of inorganic material without contaminating glass liquid, and the main material of the blowing pipe (7) is corundum pipe.

3. The glass melter gas blow level monitoring system of claim 1, wherein: The inner diameter of the blowing pipe (7) is controlled between 5-50mm, and the wall thickness is 1-10mm, and the length is the space height of the kiln + the space brick thickness of the kiln × 2 times.

4. The glass melter gas level monitoring system of claim 1, wherein: The upper part of the blowing pipe (7) is connected with the tee piece (6), the upper part of the tee piece (6) is connected with the air pipe (12), one side of the differential pressure transmitter (8) is connected with the pressure feedback gas circuit (13), and the air pipe (12) and the pressure feedback gas circuit (13) are connected with soft connection.

5. The glass melter gas level monitoring system of claim 1, wherein: The top of the kiln is fixedly provided with a blowing pipe support (75), a screw rod (73) is fixedly installed on the blowing pipe support (75), a gas pipe fixing link bolt (72) is arranged on the screw rod (73), the tee piece (6) is installed on the screw rod (73) through the gas pipe fixing link bolt (72), a handle (71) is arranged on the upper end of the screw rod (73), and a scale (74) is arranged on the blowing pipe support (75).

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