A water-cooled light guide probe and liquid level meter for glass furnace laser liquid level meter

Abstract

The present invention provides a water-cooled light-guiding probe and a liquid level meter for a glass kiln laser liquid level meter, wherein the light-guiding probe comprises a probe body and a connecting portion for connecting a laser transmitting head, the connecting portion and the probe body are connected by a hose, an optical fiber for connecting the connecting portion and the probe body is arranged in the middle of the hose, a first cavity is arranged in the hose, and the first cavity is connected to a cooling component. The present invention can effectively reduce the influence of excessive temperature on the probe body by connecting the cooling component in the first cavity of the hose, and further improve the measurement accuracy.

Description

Technical Field

[0001] The invention relates to the technical field of glass furnace liquid level detection, and in particular to a water-cooled light-guiding probe and a liquid level meter for a glass furnace laser liquid level meter. Background Art

[0002] In the production process of various glasses, the stable control and measurement of the liquid level is a very important parameter. The liquid level detection equipment usually collects the relative height of the high-temperature glass liquid level at the furnace outlet or the working channel or working pool. Glass is usually in a state of good fluidity at temperatures above 1300 degrees. The relative height of the liquid level collected within this temperature range is more accurate.

[0003] In the existing glass production and manufacturing, laser level meters are generally used to measure the liquid level of the glass furnace. The laser level meter measures the relative liquid level by irradiating the laser emitted by the laser emitting device onto the glass surface in a liquid state, and the reflected light is irradiated onto the signal receiving device and converted into a liquid level signal. However, the probe of the existing laser level meter is extended into the glass furnace, which is easily affected by the high temperature in the furnace, resulting in inaccurate measurement results. Summary of the invention

[0004] The present invention aims to solve at least one of the above-mentioned technical problems in the related art to a certain extent. To this end, the present invention proposes a water-cooled light-guiding probe for a glass kiln laser liquid level meter. A cooling component is connected to the inner cavity of a hose, and the cooling component is used to cool the probe body, which can effectively reduce the influence of excessive temperature on the probe body and further improve the measurement accuracy.

[0005] The present invention also provides a liquid level meter having the light guide probe.

[0006] The technical solution of the present invention is achieved in this way:

[0007] According to an embodiment of the first aspect of the present invention, a water-cooled light-guiding probe for a glass furnace laser liquid level meter comprises a probe body and a connecting part for connecting a laser transmitting head, wherein the connecting part and the probe body are connected by a hose, an optical fiber for connecting the connecting part and the probe body is arranged in the middle part of the hose, a first cavity is arranged in the hose, and the first cavity is connected to a cooling component.

[0008] Furthermore, the cooling assembly includes a cooling water inlet pipe and a cooling water outlet pipe symmetrically arranged on both sides of the hose, and the cooling water inlet pipe and the cooling water outlet pipe are used to connect to the cooling water supply tank.

[0009] Furthermore, the probe body includes a first shell made of high temperature resistant metal, and a third cavity connected to the first cavity is arranged in the first shell.

[0010] Furthermore, the connecting part includes a clamping head, a clamping hole for connecting the laser transmitting head is arranged in the middle of the clamping head, the other end of the clamping hole is connected to the optical fiber, a second cavity is also arranged in the clamping head, the first cavity is connected to the second cavity, the cooling water inlet pipe and the cooling water outlet pipe are symmetrically arranged on the side wall of the clamping head, and the cooling water inlet pipe and the cooling water outlet pipe are both connected to the second cavity.

[0011] Furthermore, a water inlet grid is provided at the connection point between the first cavity and the second cavity, and one end of the cooling water inlet pipe connected to the second cavity is folded downward and extends into the first cavity through the grid holes of the water inlet grid.

[0012] Furthermore, the connection between the cooling water inlet pipe and the clamp is lower than the connection between the cooling water outlet pipe and the clamp.

[0013] Furthermore, the hose includes a heat-resistant metal hose body and an incident light connector and an output light connector arranged at both ends of the heat-resistant metal hose body; an incident light window and an output light window are respectively arranged at both ends of the optical fiber, a first mounting groove is arranged on the inner wall of the connection between the incident light connector and the card hole, and a first protrusion matching the first mounting groove is arranged on the side wall of the incident light window; a second mounting groove is arranged on the inner wall of the connection between the output light connector and the first shell, and a second protrusion matching the second mounting groove is arranged on the side wall of the output light window.

[0014] Further, the end at which the clamp and the heat-resistant metal hose body face each other is provided with a first flange and a second flange, respectively, and the first flange and the second flange are correspondingly provided with a plurality of first through holes for bolts to pass through and connect along the circumferential direction, the inner wall of the clamp close to the end of the heat-resistant metal hose body is provided with a first groove, and the side wall of the incident light connector close to the clamp is provided with a second groove, the first groove and the second groove constitute the first mounting groove, and the surrounding walls of the first groove and the second groove both abut on the first protrusion; the end at which the heat-resistant metal hose body and the first shell body face each other is provided with a third flange and a fourth flange, respectively, and the third flange and the fourth flange are correspondingly provided with a plurality of second through holes for bolts to pass through and connect along the circumferential direction, and the inner wall at the end at which the output light connector and the first shell body face each other is provided with a third groove and a fourth groove, respectively, the third groove and the fourth groove constitute the second mounting groove, and the surrounding walls of the third groove and the fourth groove both abut on the second protrusion.

[0015] A liquid level meter according to an embodiment of the second aspect of the present invention comprises a laser transmitter head and a probe connected to the laser transmitter head, wherein the probe adopts a light guiding probe of the embodiment of the first aspect.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] (1) By connecting the first cavity with a cooling component, during operation, the cooling material is circulated in the first cavity through the cooling component, so that the entire probe is cooled, which can effectively reduce the impact of excessive temperature on the probe body and further improve the measurement accuracy.

[0018] (2) The connection part and the probe body are connected by a hose, so the penetration depth and angle of the probe body can be adjusted by bending the hose at a certain angle, which solves the defect of the prior art that the laser emission can only be introduced in a straight line, and the liquid level height can be flexibly adjusted; at the same time, through the light-guiding performance of the optical fiber and the hose passing through and connecting to the insulation wall of the kiln, material channel or working pool, compared with the defect of the prior art that a larger opening needs to be reserved on the insulation wall to ensure the stroke of the linear introduction of the laser light injection and reflection; the kiln, material channel or working pool using the light-guiding probe only needs to reserve a small hole on its insulation wall to realize installation and liquid level detection, which can effectively avoid the heat loss and process fluctuation caused by reserving a large opening on the insulation wall. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of an embodiment of a light guide probe of the present invention;

[0021] Figure 2 for Figure 1 A schematic diagram of a portion of the structure of the middle connection part and the hose assembly;

[0022] Figure 3 for Figure 1 A schematic diagram of the top view of the structure of the middle connecting part;

[0023] Figure 4 for Figure 1 A schematic diagram of the top view of the incident light connector;

[0024] Figure 5 for Figure 1 Partial schematic diagram of the assembly of the probe body and the hose;

[0025] Figure 6 for Figure 1 Schematic diagram of the top view of the output light connector.

[0026] Reference numerals:

[0027] 100 probe body, 110 first shell, 111 fourth flange, 120 third cavity, 130 water outlet grid;

[0028] 200 connecting portion, 210 clamping head, 211 clamping hole, 212 first flange, 213 first through hole, 220 second cavity, 230 water inlet grid;

[0029] 300 hose, 310 first cavity, 320 heat-resistant metal hose body, 321 second flange, 322 third flange, 323 second through hole, 330 incident light connector, 340 outgoing light connector;

[0030] 400 optical fiber, 410 incident light window, 411 first convex block, 420 exit light window, 421 second convex block;

[0031] 510 cooling water inlet pipe, 520 cooling water outlet pipe. DETAILED DESCRIPTION

[0032] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientation, such as “up”, “down”, “front”, “back”, “left”, “right”, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, if described as "first", "second", etc., it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] See also Figures 1 to 6As shown, a water-cooled light-guiding probe for a glass furnace laser level meter provided according to an embodiment of the present invention comprises a probe body 100 and a connecting portion 200 for connecting a laser transmitting head, wherein the connecting portion 200 and the probe body 100 are connected via a hose 300, wherein an optical fiber 400 for connecting the connecting portion 200 and the probe body 100 is arranged in the middle of the hose 300, wherein a first cavity 310 is arranged in the hose 300, and the first cavity 310 is connected to a cooling component. Compared with the prior art, the embodiment of the present invention connects the first cavity 310 with a cooling component, and during operation, the cooling material is circulated in the first cavity 310 by the cooling component, so that the entire probe is cooled and cooled, which can effectively reduce the influence of excessive temperature on the probe body 100, and further improve the measurement accuracy; in the embodiment of the present invention, since the connecting portion 200 and the probe body 100 are connected via the hose 300, the penetration depth and angle of the probe body 100 can be adjusted by bending the hose 300 at a certain angle, thereby solving the problem in the prior art caused by the laser The emission can only be introduced in a straight line, and the liquid level height can be flexibly adjusted; at the same time, the light-guiding performance of the optical fiber 400 is utilized and the hose 300 passes through and is connected to the insulation wall of the kiln, material channel or working pool. Compared with the defect of the prior art that a larger opening needs to be reserved on the insulation wall to ensure the linear introduction of the laser light and the defect of the stroke of the injection and reflection; the kiln, material channel or working pool using the light-guiding probe of the embodiment of the present invention only needs to reserve a small hole on its insulation wall to realize the installation for liquid level detection, which can effectively avoid the large opening reserved in the insulation wall to cause heat loss and process fluctuations.

[0037] like Figures 1 to 3 As shown, preferably, the cooling assembly includes a cooling water inlet pipe 510 and a cooling water outlet pipe 520 symmetrically arranged on both sides of the hose 300, and the cooling water inlet pipe 510 and the cooling water outlet pipe 520 are used to connect to the cooling water supply tank. During operation, the cooling water can be circulated in the first cavity 310 through the cooling water inlet pipe 510 and the cooling water outlet pipe 520, so that the entire probe can be effectively cooled, reducing the impact of excessive temperature on the probe body 100, and further improving the measurement accuracy.

[0038] like Figure 5 As shown, further preferably, the probe body 100 includes a first shell 110 made of high temperature resistant metal, and a third cavity 120 connected to the first cavity 310 is arranged in the first shell 110. In this way, cooling water flows in the first cavity 310 and the third cavity 120 during the circulation process, further effectively taking away the heat on the probe body 100, so that the temperature of the probe body 100 is basically maintained in a suitable temperature range, reducing the impact of excessive temperature on the probe body 100.

[0039] like Figure 2 As shown, further preferably, the connecting part 200 includes a clamp head 210, a clamp hole 211 for connecting the laser transmitter is arranged in the middle of the clamp head 210, and the other end of the clamp hole 211 is connected to the optical fiber 400, and a second cavity 220 is also arranged in the clamp head 210, the first cavity 310 is connected to the second cavity 220, and the cooling water inlet pipe 510 and the cooling water outlet pipe 520 are symmetrically arranged on the side wall of the clamp head 210, and the cooling water inlet pipe 510 and the cooling water outlet pipe 520 are both connected to the second cavity 220. In this way, under the action of the cooling water inlet pipe 510 and the cooling water outlet pipe 520, the cooling water can flow in the first cavity 310, the third cavity 120 and the second cavity 220, so that when the cooling water flows out, the heat on the probe is taken away to cool down. At the same time, the probe can be installed on the laser transmitter head by sleeved on the clamp hole 211, and the installation is fast and convenient.

[0040] like Figure 2 As shown, further preferably, a water inlet grid 230 is provided at the connection point between the first cavity 310 and the second cavity 220, and one end of the cooling water inlet pipe 510 connected to the second cavity 220 is folded downward and extends through the grid hole of the water inlet grid 230 to the first cavity 310. By turning over one end of the cooling water inlet pipe 510 and extending it into the first cavity 310, the cooling water flowing in from the cooling water inlet pipe 510 can fill the first cavity 310 and the third cavity 120 before flowing out from the cooling water outlet pipe 520, which can effectively cool down the hose 300 and the probe.

[0041] like Figure 2 As shown, preferably, the connection between the cooling water inlet pipe 510 and the clamp 210 is lower than the connection between the cooling water outlet pipe 520 and the clamp 210. Since the position of the cooling water outlet pipe 520 is higher than the position of the cooling water inlet pipe 510, the cooling water flowing in from the cooling water inlet pipe 510 can fill the first cavity 310 and the third cavity 120 before flowing out from the cooling water outlet pipe 520, which can effectively cool the hose 300 and the probe body 100.

[0042] like Figure 2 , Figure 4 , Figure 5 and Figure 6As shown, preferably, the hose 300 includes a heat-resistant metal hose body 320 and an incident light connector 330 and an exit light connector 340 arranged at both ends of the heat-resistant metal hose body 320; an incident light window 410 and an exit light window 420 are respectively arranged at both ends of the optical fiber 400, a first mounting groove is arranged on the inner wall of the connection between the incident light connector 330 and the clamping hole 211, and a first protrusion 411 matching the first mounting groove is arranged on the side wall of the incident light window 410; a second mounting groove is arranged on the inner wall of the connection between the exit light connector 340 and the first shell 110, and a second protrusion 421 matching the second mounting groove is arranged on the side wall of the exit light window 420. In this arrangement, the incident light window 410 and the exit light window 420 are respectively firmly mounted in the first mounting groove and the second mounting groove through the first protrusion 411 and the second protrusion 421, so that the laser emitted by the laser transmitter enters the optical fiber 400 through the incident light window 410 and is emitted to the high-temperature glass liquid surface through the exit light window 420 for detection. Since the incident light window 410 and the exit light window head are respectively firmly mounted in the first mounting groove and the second mounting groove, the laser passes smoothly through the liquid surface for detection, further improving the detection accuracy. It should be noted that the incident light window 410 and the exit light window 420 are both made of quartz glass.

[0043] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, further preferably, the ends of the clamp 210 and the heat-resistant metal hose body 320 facing each other are respectively provided with a first flange 212 and a second flange 321, and the first flange 212 and the second flange 321 are correspondingly provided with a plurality of first through holes 213 for bolts to pass through and connect along the circumferential direction, and the inner wall of the end of the clamp 210 close to the heat-resistant metal hose body 320 is provided with a first groove, and the side wall of the incident light connector 330 close to the end of the clamp 210 is provided with a second groove, and the first groove and the second groove constitute the first installation groove, and the first groove and the second groove The surrounding walls of the groove are all in contact with the first protrusion 411; the heat-resistant metal hose body 320 and the end facing each other are respectively provided with a third flange 322 and a fourth flange 111, and the third flange 322 and the fourth flange 111 are correspondingly provided with a plurality of second through holes 323 for bolts to pass through and connect along the circumferential direction; the inner walls of the end facing each other of the output light connector 340 and the first shell are respectively provided with a third groove and a fourth groove, and the third groove and the fourth groove constitute the second installation groove, and the surrounding walls of the third groove and the fourth groove are both in contact with the second protrusion 421. With such arrangement, the chuck 210 and the heat-resistant metal hose body 320 can be connected as a whole by passing a bolt through the first through hole 213 and screwing on a nut, so that the third cavity 120 and the first cavity 310 are connected, and at the same time, the surrounding walls of the first groove and the second groove respectively abut on the first protrusion 411 to form a first installation groove, which is convenient for installation and can stably install the incident light window 410; the heat-resistant metal hose body 320 and the probe body 100 can be connected as a whole by passing a bolt through the second through hole 323 and cooperating with a nut, so that the surrounding walls of the third groove and the fourth groove respectively abut on the second protrusion 421 to form a second installation groove, which is convenient for installation and can stably install the exit light window 420.

[0044] like Figure 5 As shown, preferably, a water outlet grid 130 is provided between the third cavity 120 and the first cavity 310. The water outlet grid 130 can allow cooling water to fully circulate in the third cavity 120, thereby fully taking away the heat of the probe body 100, and achieving a better cooling effect.

[0045] In another embodiment of the present invention, the cooling assembly includes an air inlet pipe and an air outlet pipe for conveying cold air, wherein the air inlet pipe is arranged on the upper end side wall of the hose 300, and the air outlet pipe is arranged on the lower end side wall of the hose 300. The cold air circulates through the first cavity 310 to take away the heat from the probe, so that the entire probe can be effectively cooled.

[0046] A liquid level meter according to an embodiment of the second aspect of the present invention comprises a laser transmitter head and a probe connected to the laser transmitter head, wherein the probe adopts a light-guiding probe of any of the above-mentioned embodiments. Compared with the prior art, the embodiment of the present invention connects the first cavity 310 in the probe with a cooling component. During operation, the cooling material is circulated in the first cavity 310 by the cooling component, so that the entire probe is cooled down, which can effectively reduce the influence of excessive temperature on the probe body 100 and further improve the measurement accuracy. In the embodiment of the present invention, since the connection part 200 and the probe body 100 are connected by a hose 300, the hose 300 can be bent at a certain angle to adjust the penetration depth and angle of the probe body 100, which solves the problem in the prior art caused by The defect that laser emission can only be introduced in a straight line can be solved by flexibly adjusting the liquid level height; at the same time, through the light-guiding performance of the optical fiber 400 and the hose 300 passing through and connected to the insulation wall of the kiln, material channel or working pool, compared with the defect of the prior art that a larger opening needs to be reserved on the insulation wall to ensure the linear introduction of laser light injection and reflection stroke; the kiln, material channel or working pool using the liquid level meter of the embodiment of the present invention only needs to reserve a small hole on its insulation wall to realize installation for liquid level detection, which can effectively avoid heat loss and process fluctuations caused by reserving a larger opening in the insulation wall.

[0047] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A water-cooled light-guiding probe for a glass furnace laser level meter, characterized in that: The invention comprises a probe body and a connecting part for connecting a laser emitting head, wherein the connecting part and the probe body are connected by a hose, an optical fiber for connecting the connecting part and the probe body is arranged in the middle part of the hose, a first cavity is arranged in the hose, the first cavity is connected with a cooling component, the cooling component comprises a cooling water inlet pipe and a cooling water outlet pipe symmetrically arranged on both sides of the hose, the cooling water inlet pipe and the cooling water outlet pipe are used to connect with a cooling water supply tank, the probe body comprises a first shell made of high temperature resistant metal, a third cavity connected with the first cavity is arranged in the first shell, the first cavity is connected with the second cavity, the cooling water inlet pipe and the cooling water outlet pipe are symmetrically arranged on the side wall of the clamp, the cooling water inlet pipe and the cooling water outlet pipe are both connected with the second cavity, the first cavity and the A water inlet grid is provided at the connection point of the second cavity, one end of the cooling water inlet pipe connected to the second cavity is folded downward and extends into the first cavity through the grid hole of the water inlet grid, the connection point between the cooling water inlet pipe and the clamp is lower than the connection point between the cooling water outlet pipe and the clamp, the hose includes a heat-resistant metal hose body and an incident light connector and an output light connector arranged at both ends of the heat-resistant metal hose body, an incident light window and an output light window are respectively provided at both ends of the optical fiber, a first mounting groove is provided on the inner wall of the connection between the incident light connector and the clamp hole, a first protrusion matching the first mounting groove is provided on the side wall of the incident light window, a second mounting groove is provided on the inner wall of the connection between the output light connector and the first shell, and a second protrusion matching the second mounting groove is provided on the side wall of the output light window.

2. The water-cooled light guide probe for a glass furnace laser level meter according to claim 1, characterized in that: The end at which the clamp and the heat-resistant metal hose body face each other is provided with a first flange and a second flange, respectively. The first flange and the second flange are correspondingly provided with a plurality of first through holes for bolts to pass through and connect along the circumferential direction. The inner wall of the clamp close to the end of the heat-resistant metal hose body is provided with a first groove. The side wall of the incident light connector close to the clamp is provided with a second groove. The first groove and the second groove constitute the first mounting groove, and the surrounding walls of the first groove and the second groove both abut against the first protrusion; the end at which the heat-resistant metal hose body and the first shell body face each other is provided with a third flange and a fourth flange, respectively. The third flange and the fourth flange are correspondingly provided with a plurality of second through holes for bolts to pass through and connect along the circumferential direction. The inner wall at the end at which the output light connector and the first shell body face each other is provided with a third groove and a fourth groove, respectively. The third groove and the fourth groove constitute the second mounting groove, and the surrounding walls of the third groove and the fourth groove both abut against the second protrusion.

3. The water-cooled light guide probe for a glass furnace laser level meter according to claim 1, characterized in that: A water outlet grid is arranged between the third cavity and the first cavity.

4. A liquid level meter, comprising a laser transmitter and a probe connected to the laser transmitter, characterized in that: The probe is a light-guiding probe as described in any one of claims 1 to 3.

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