阅读说明：本技术 一种铂金通道的加湿装置及方法 (Platinum channel humidifying device and method ) 是由 何艳生 张国权 宁小永 刘仲军 于 2020-05-25 设计创作，主要内容包括：本发明一种铂金通道的加湿装置及方法,装置中蒸汽腔体开口的一端连接蒸汽软管；蒸汽腔体内沿垂直方向设置分流板,分流板的一端与蒸汽腔体开口平齐,另一端深入蒸汽腔体,隔板的一端与分流板的另一端密封,另一端与蒸汽腔体密封后形成第一腔室和第二腔室；第一腔室的长度方向设置第一喷口,第一腔室的底部设置第一疏水管；第一腔室长度方向的延伸处设置第二喷口,第二腔室的底部设置第二疏水管。所述方法包括先将蒸汽腔体进行固定,使第一喷口和第二喷口朝上设置,第一疏水管和第二疏水管朝下设置；再将干饱和蒸汽引入蒸汽腔体,一部分通过第一喷口喷出,蒸汽冷凝水通过第一疏水管排出；另一部分通过第二喷口喷出,蒸汽冷凝水通过第二疏水管排出。(The invention relates to a platinum channel humidifying device and method, wherein one end of an opening of a steam cavity in the device is connected with a steam hose; a flow distribution plate is arranged in the steam cavity along the vertical direction, one end of the flow distribution plate is flush with the opening of the steam cavity, the other end of the flow distribution plate extends into the steam cavity, one end of a partition plate is sealed with the other end of the flow distribution plate, and the other end of the partition plate is sealed with the steam cavity to form a first cavity and a second cavity; a first nozzle is arranged in the length direction of the first chamber, and a first drain pipe is arranged at the bottom of the first chamber; the extension of the first chamber in the length direction is provided with a second nozzle, and the bottom of the second chamber is provided with a second drain pipe. The method comprises the steps that a steam cavity is fixed, a first nozzle and a second nozzle are arranged upwards, and a first drain pipe and a second drain pipe are arranged downwards; introducing dry saturated steam into the steam cavity, spraying a part of the dry saturated steam out through the first nozzle, and discharging steam condensate water through the first drain pipe; the other part is sprayed out through a second nozzle, and the steam condensate is discharged through a second drain pipe.)

1. A platinum channel humidifying device is characterized by comprising a steam cavity (3) arranged below a platinum channel, a first nozzle (41), a second nozzle (42), a steam hose (6), a first drain pipe (8), a second drain pipe (9), a flow distribution plate (10) and a partition plate (13);

the steam cavity (3) is long-strip-shaped, one end of the steam cavity (3) is open, the other end of the steam cavity is sealed, and one open end of the steam cavity (3) is connected with a steam hose (6);

a flow distribution plate (10) is arranged in the steam cavity (3) along the vertical direction, one end of the flow distribution plate (10) is flush with one open end of the steam cavity (3), the other end of the flow distribution plate (10) extends into the steam cavity (3), one end of a partition plate (13) is hermetically connected with the other end of the flow distribution plate (10), and a first cavity (11) and a second cavity (12) are formed in the steam cavity (3) after the other end of the partition plate (13) is hermetically connected with the steam cavity (3);

the length of the first chamber (11) is equal to that of the flow distribution plate (10), and the length of the second chamber (12) is equal to that of the steam cavity (3);

a first nozzle (41) is arranged in the length direction of the first chamber (11), the first nozzle (41) is positioned at the top of the first chamber (11), and a first drain pipe (8) is arranged at the bottom of the first chamber (11);

a second nozzle (42) is arranged at the extending position of the first chamber (11) in the length direction, the second nozzle (42) is positioned at the top of the second chamber (12), and a second drain pipe (9) is arranged at the bottom of the second chamber (12).

2. A platinum channel humidifying device as claimed in claim 1, wherein the length of the splitter plate (10) is half of the length of the steam chamber (3), and the splitter plate (10) is located at the center of the steam chamber (3).

3. The platinum channel humidifying device as claimed in claim 1, wherein the first nozzle (41) and the second nozzle (42) both have a hole diameter of 1-3 mm; the inner diameters of the first drain pipe (8) and the second drain pipe (9) are 5-15 mm.

4. A platinum channel humidifying device according to claim 1, further comprising a connecting cavity (7), one end of the connecting cavity (7) is connected with the steam hose (6) through the ball valve (5), and the other end of the connecting cavity (7) is connected with the steam cavity (3).

5. The platinum channel humidifying device according to claim 4, wherein the cross section of the steam cavity (3) is square, the connecting cavity (7) is of a square structure, one square end of the connecting cavity (7) is connected with the steam cavity (3), and one round end of the connecting cavity (7) is connected with the ball valve (5).

6. A platinum channel humidifying device as claimed in claim 4, wherein the steam chamber (3), the ball valve (5) and the steam hose (6) are made of SUS 304.

7. A platinum channel humidifying device as claimed in claim 4, wherein the outer walls of the steam cavity (3), the ball valve (5) and the steam hose (6) are coated with heat insulating materials.

8. A platinum channel humidifying method, characterized in that, based on the platinum channel humidifying device of any one of claims 1-7, comprising the following steps,

step 1, fixing a steam cavity (3) vertically below a cooling section (15) and a cooling section (16) of a platinum channel, enabling a first nozzle (41) and a second nozzle (42) to be arranged upwards, and a first drain pipe (8) and a second drain pipe (9) to be arranged downwards;

step 2, introducing dry saturated steam into a steam cavity (3) through a steam hose (6), wherein the dry saturated steam respectively enters a first cavity (11) and a second cavity (12) after passing through a flow distribution plate (10);

step 3, spraying a part of dry saturated steam through a first nozzle (41) of a first chamber (11), and discharging formed steam condensate through a first drain pipe (8); the other part of the dry saturated steam flows to the second nozzle (42) and then is sprayed out through the second nozzle (42), and the formed steam condensate water is discharged through the second drain pipe (9);

and (4) continuing the humidification operation according to the humidity required by the platinum channel process.

9. The platinum channel humidifying method as claimed in claim 8, wherein step 1 is to fix the steam chamber (3) with a support constructed of refractory brick or stainless steel.

10. The platinum channel humidifying method according to claim 8, wherein after the steam cavity (3) is fixed in the step 1, one end of the steam cavity (3) connected with the steam hose (6) is higher than the other end of the steam cavity (3), and the angle formed by the steam cavity (3) and the horizontal plane is 1-5 degrees.

Technical Field

The invention belongs to the technical field of overflow-method high-aluminum cover plate glass manufacturing, and particularly relates to a platinum channel humidifying device and method.

Background

The high-temperature glass flowing out of the kiln can meet the requirements of the forming process by homogenizing the material, adjusting the atmosphere, removing bubbles, eliminating stripes, adjusting the viscosity and controlling the flow through a platinum channel. In the glass production process, a through defect generated in a platinum channel, namely a large bubble with the diameter of more than 30mm, has great influence on the product yield, and the gas component detection result of the bubble is as follows: o is₂The content is more than 90 percent. Practice proves that the effect of dealing with the through defects is obvious by adjusting the temperature and the humidity of the external environment of the platinum channel. One theory is that the thermal decomposition or electrolysis of water in the glass (water is present as-OH ions in the glass melt) causes hydrogen migration and oxygen formation in the molten glass. Specifically, thermoelectric electrolysis of the glass melt, reduction of the oxide fining agent (i.e., multivalent oxide), and the amount of hydroxyl (OH) groups dissolved in the glass, especially the last factor, have a large effect on the rate of blistering caused by contact of the glass with the walls of the high temperature platinum tube. This theory suggests that some dissociation of the OH groups occurs to form neutral hydrogen and oxygen, due to H₂The small molecular radius can seep out of the container through the high-temperature platinum pipe wall and enter the atmosphere outside the container, so that the content of free oxygen in the molten glass in the channel is increased, and if the content exceeds the limit of the solubility of oxygen in the glass, oxygen bubbles (namely bubble seeds) can be formed. The rate of hydrogen permeation from the platinum tube wall, and the rate of oxygen generation in the molten glass inside the channel, is proportional to the difference between the square root of the partial pressure of hydrogen outside and inside the channel. Thus, by controlling the relative hydrogen partial pressures outside and inside the platinum channels (and more specifically inside the glass melt), the permeation of hydrogen through the platinum tube walls can be controlled to minimize or eliminate the formation of oxygen-containing gas bubbles.

In view of the above, effective countermeasures against oxygen bubble formation due to hydrogen permeation in the platinum channel are: the humidity of the environment outside the channel is controlled, namely the water content of the environment outside the channel and the water content of the glass melt inside the channel reach an equilibrium state, and the principle is shown in the following figure 1. Specifically, the method comprises the following steps: the channel is humidified by steam in the external environmentThe water vapor in the external environment is electrolyzed (or pyrolyzed) into H on the outer side of the platinum pipe wall₂And O₂Thereby increasing the H of the platinum channel (more specifically, the glass liquid in the platinum channel)₂The partial pressure suppresses dissociation of OH groups in the molten glass, thereby suppressing generation of oxygen bubbles.

According to the difference of the heating mode and the temperature gradient of each section of the platinum channel, theoretically, the humidity requirements of each section of the platinum channel are different, for example, the temperature rising section and the clarification section need lower humidity, a certain amount of large oxygen bubbles are expected to be generated to achieve the effect similar to bubbling clarification, however, each section after the clarification section needs uniform and higher humidity to inhibit the generation of humidifying bubbles (namely oxygen), and the production practice is also fully verified. The existing channel humidification technology comprises the overall humidification of an inter-channel air conditioner and the local humidification of an amstrong humidifier, wherein amstrong is the name of a manufacturer. The air conditioner humidification has the advantages that the humidity of each section of the channel cannot be adjusted in a differentiated mode, the amstrong humidifier can make up for the defects of the air conditioner humidification, and the humidity of each section of the channel can be distributed in a differentiated mode by adjusting the position distribution and the angle of the amstrong humidifier.

As the fluid characteristic of the steam in the open space is upward flowing, the humidification from the vertical lower part of the platinum channel can ensure that the humidity at the bottom, the side part and the top of the channel all meet the process requirements, and the process effect of omnibearing humidification is achieved. However, the disadvantage of the amstrongg humidifier is that it cannot humidify from the vertical lower part of the channel, on one hand, because the space for installing the amstrongg humidifier below the channel is not enough, on the other hand, the fan configured in the amstrongg humidifier itself limits that it cannot be installed in horizontal elevation angle, so that it can only humidify from the side and top of the channel, and therefore it cannot guarantee enough and uniform humidity at the bottom of the channel, and further meet the process requirements.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a platinum channel humidifying device and method, which are simple in structure, economical and practical, convenient to install and small in installation space, and can solve the technical problem that the existing platinum channel humidifying technology cannot ensure enough and uniform humidity at the bottom of a channel so as to meet the technological requirements.

The invention is realized by the following technical scheme:

a platinum channel humidifying device comprises a steam cavity arranged below a platinum channel, a first nozzle, a second nozzle, a steam hose, a first drain pipe, a second drain pipe, a flow distribution plate and a partition plate;

the steam cavity is in a long strip shape, one end of the steam cavity is in an open arrangement, the other end of the steam cavity is in a sealed arrangement, and one open end of the steam cavity is connected with a steam hose;

a flow distribution plate is arranged in the steam cavity along the vertical direction, one end of the flow distribution plate is flush with one end of the opening of the steam cavity, the other end of the flow distribution plate extends into the steam cavity, one end of a partition plate is hermetically connected with the other end of the flow distribution plate, and a first cavity and a second cavity are formed in the steam cavity after the other end of the partition plate is hermetically connected with the steam cavity;

the length of the first chamber is equal to that of the flow distribution plate, and the length of the second chamber is equal to that of the steam cavity;

a first nozzle is arranged in the length direction of the first chamber and positioned at the top of the first chamber, and a first drain pipe is arranged at the bottom of the first chamber;

and a second nozzle is arranged at the extending position of the first cavity in the length direction and positioned at the top of the second cavity, and a second drain pipe is arranged at the bottom of the second cavity.

Preferably, the length of the flow distribution plate is half of the length of the steam cavity, and the flow distribution plate is located in the center of the steam cavity.

Preferably, the aperture of each of the first nozzle and the second nozzle is 1-3 mm; the inner diameters of the first drain pipe and the second drain pipe are 5-15 mm.

Preferably, the steam generator further comprises a connecting cavity, one end of the connecting cavity is connected with the steam hose through a ball valve, and the other end of the connecting cavity is connected with the steam cavity.

Furthermore, the cross section of the steam cavity is square, the connecting cavity is of a round-sky-square structure, one end of the connecting cavity, which is square, is connected with the steam cavity, and one end of the connecting cavity, which is round, is connected with the ball valve.

Still further, the material of the steam cavity, the ball valve and the steam hose is SUS 304.

And the outer walls of the steam cavity, the ball valve and the steam hose are coated with heat insulating materials.

A platinum channel humidifying method based on any one of the platinum channel humidifying devices comprises the following steps,

step 1, fixing a steam cavity below a cooling section and a cooling section of a platinum channel, enabling a first nozzle and a second nozzle to be arranged upwards, and a first drain pipe and a second drain pipe to be arranged downwards;

step 2, introducing dry saturated steam into the steam cavity through a steam hose, wherein the dry saturated steam respectively enters the first cavity and the second cavity after passing through the flow distribution plate;

step 3, spraying a part of dry saturated steam through a first nozzle of the first chamber, and discharging formed steam condensate water through a first drain pipe; the other part of the dry saturated steam flows to the second nozzle and then is sprayed out through the second nozzle, and the formed steam condensate water is discharged through the second drain pipe;

and (4) continuing the humidification operation according to the humidity required by the platinum channel process.

Further, step 1, fixing the steam cavity by using a support built by refractory bricks or stainless steel.

And further, after the steam cavity is fixed in the step 1, one end of the steam cavity, which is connected with the steam hose, is higher than the other end of the steam cavity, and the angle formed by the steam cavity and the horizontal plane is 1-5 degrees.

Compared with the prior art, the invention has the following beneficial technical effects:

according to the humidifying device for the platinum channel, the steam cavity is in a strip shape and can humidify the platinum channel with a certain length space, one end of the steam cavity is connected with the steam hose, and dry saturated steam provided by a boiler room can be introduced into the steam cavity; the steam pressure loss will cause the flow rate of each steam jet to decrease in the direction of steam flow, i.e. from the steam inlet, the steam flow rate of each nozzle is reduced along the flow direction along with the gradual increase of the steam pressure loss, the pressure loss is larger when the pipeline is longer, the flow rate difference between the inlet end nozzle and the tail end nozzle is larger, thereby the humidification uniformity is worse, the steam cavity is divided into a first chamber and a second chamber by the splitter plate and the clapboard, the top and the bottom of the first chamber and the second chamber are respectively provided with a first nozzle and a second nozzle, and a first drain pipe and a second drain pipe, thus the steam flow of the two chambers can be divided, the two air flows are respectively used for humidification, the influence of pressure loss of the steam flow direction in the chambers on the steam jet speed uniformity of each nozzle can be reduced to a certain extent, further, the platinum channel can be uniformly humidified, and then the formed steam condensate water can be smoothly discharged. The invention solves the technical problem that the existing platinum channel humidification technology can not ensure enough and uniform humidity at the bottom of the channel so as to meet the technological requirements, and the manufacturing cost is about 1 percent of the price of the amstrong humidifier.

Furthermore, the length of the flow distribution plate is half of that of the steam cavity, the flow distribution plate is located in the center of the steam cavity, so that the pressure of the formed two air flows is the same, the air flow speeds sprayed out from the first nozzle and the second nozzle are almost the same, and the platinum channel can be uniformly humidified by each nozzle under the almost same steam pressure.

The invention relates to a platinum channel humidifying method, firstly fixing a steam cavity below the cooling section and the cooling section of a platinum channel, and enabling a first nozzle and a second nozzle to be arranged upwards and a first drain pipe and a second drain pipe to be arranged downwards; then, introducing dry saturated steam into the steam cavity through the steam hose, wherein the dry saturated steam can enter the first cavity and the second cavity through the flow distribution plate respectively; and one part of dry saturated steam is sprayed out through the first nozzle, formed steam condensate is discharged through the first drain pipe, the other part of dry saturated steam flows to the second nozzle and then is sprayed out, and the formed steam condensate is discharged through the second drain pipe, so that the platinum channel can be humidified, and the humidification operation is completed according to the humidity required by the platinum channel process.

Drawings

FIG. 1 is a schematic diagram of the principle of platinum channel humidification;

FIG. 2 is a schematic view of the overall structure of the present invention;

FIG. 3 is a schematic view of the internal structure of the steam chamber of FIG. 2 and the connection between the steam chamber and the first and second drain pipes;

FIG. 4 is a schematic view of the connecting chamber of FIG. 2;

fig. 5 is a schematic view of the installation position of the humidifying device in the platinum channel.

Wherein: 1-glass liquid; 2-platinum channel tube wall; 3-a steam cavity; 41-a first nozzle; 42-a second jet; 5-a ball valve; 6-steam hose; 7-connecting the cavity; 8-a first drain pipe; 9-a second drain pipe; 10-a splitter plate; 11-a first chamber; 12-a second chamber; 13-a separator; 14-temperature rising section; 15-cooling section; 16-a cooling section; 17-a clarification section; 18-a stirred tank; 19-a feed tank; 20-a humidifying device; 21-bracket.

Detailed Description

The present invention will now be described in further detail with reference to specific examples, which are intended to be illustrative, but not limiting, of the invention.

The platinum channel humidifying device comprises a steam cavity 3, a first nozzle 41, a second nozzle 42, a steam hose 6, a first drain pipe 8, a second drain pipe 9, a flow distribution plate 10 and a partition plate 13, wherein the steam cavity 3 is arranged below a platinum channel; .

The steam cavity 3 is long strip-shaped, one end of the steam cavity 3 is open, the other end of the steam cavity is sealed, and one open end of the steam cavity 3 is connected with a steam hose 6.

Be provided with flow distribution plate 10 along the vertical direction in the steam cavity 3, the one end of flow distribution plate 10 and the open-ended one end parallel and level of steam cavity 3, the other end of flow distribution plate 10 gos deep into the cavity setting of steam cavity 3, the one end of baffle 13 and the other end sealing connection of flow distribution plate 10, the other end of baffle 13 forms first cavity 11 and second cavity 12 in steam cavity 3 behind 3 sealing connection of steam cavity.

The length of the first chamber 11 is equal to the length of the dividing plate 10 and the length of the second chamber 12 is equal to the length of the steam chamber 3. The first chamber 11 is completely separated from the second chamber 12 by the partition plate 13 and the flow dividing plate 10, and the first chamber 11 and the second chamber 12 are welded to form independent chambers.

The first nozzle 41 is arranged in the length direction of the first chamber 11, the first nozzle 41 is positioned at the top of the first chamber 11, and the first drain pipe 8 is arranged at the bottom of the first chamber 11.

The second nozzle 42 is arranged at the extension part of the first chamber 11 in the length direction, the second nozzle 42 is positioned at the top part of the second chamber 12, and the bottom part of the second chamber 12 is provided with a second drain pipe 9.

The first and second drain pipes 8 and 9 function to drain condensed water of the steam inside the first and second chambers 11 and 12.

In a preferred scheme, the length of the flow dividing plate 10 is half of the length of the steam cavity 3, the flow dividing plate 10 is positioned in the central position of the steam cavity 3 and has the function of dividing the steam flow equally, so that the pressure of the two formed air flows is the same, the air flow speeds sprayed out from the first nozzle and the second nozzle are almost the same, and the platinum channel can be uniformly humidified by each nozzle under the almost same steam pressure.

One end of the connecting cavity 7 is connected with the steam hose 6 through the ball valve 5, and the other end of the connecting cavity 7 is welded with the steam cavity 3. The connecting cavity 7 is connected with the ball valve 5 through threads, and the ball valve 5 is connected with the steam hose 6 through a quick connector.

The cross section of the steam cavity 3 is square, the connecting cavity 7 is of a round-the-sky and square structure, one end of the connecting cavity 7 is connected with the steam cavity 3, and one end of the connecting cavity 7 is connected with the ball valve 5. The interface of the ball valve 5 is round, and the inlet of the steam cavity 3 is square, so the connecting cavity 7 should be of a gradual change structure, and therefore, the connecting cavity is of a round-top-square structure, as shown in fig. 4.

The material of the steam cavity 3, the ball valve 5 and the steam hose 6 is SUS304, namely 304 stainless steel, and the outer wall of the steam cavity is coated with heat insulation materials.

The invention relates to a platinum channel humidifying method, which comprises the following steps,

step 1, as shown in fig. 5, fixing a steam cavity 3 vertically below a cooling section 15 and a cooling section 16 of a platinum channel, so that a first nozzle 41 and a second nozzle 42 are arranged upwards, and a first drain pipe 8 and a second drain pipe 9 are arranged downwards;

step 2, introducing dry saturated steam into a steam cavity 3 through a steam hose 6, wherein the dry saturated steam respectively enters a first cavity 11 and a second cavity 12 after passing through a flow distribution plate 10;

step 3, spraying a part of dry saturated steam through a first nozzle 41 of the first chamber 11, discharging formed steam condensate through a first drain pipe 8, spraying the other part of dry saturated steam after flowing to a second nozzle 42, and discharging the formed steam condensate through a second drain pipe 9;

and (4) continuing the humidification operation according to the humidity required by the platinum channel process.

Specifically, dry saturated steam provided by the boiler room sequentially passes through the steam hose 6, the ball valve 5 and the connecting cavity 7 to enter the steam cavity 3, the flow is equally divided by the flow dividing plate 10 and then respectively enters the first cavity 11 and the second cavity 12, the steam is sprayed out through the first nozzle 41 and the second nozzle 42 at the top of the steam cavity 3, and steam condensate water is discharged through the first drain pipe 8 and the second drain pipe 9 at the bottom of the steam cavity 3.

The general steam cavity 3 is placed horizontally, the direction of the first nozzle 41 and the second nozzle 42 is upward, the outlet direction of the first drain pipe 8 and the second drain pipe 9 is downward, in order to facilitate timely discharge of condensed water, a simple support built by refractory bricks or stainless steel is used for supporting during installation, as shown in fig. 5, the front end (steam inlet end) of the steam cavity 3 is slightly higher than the rear end, the angle is 1-5 degrees, the most suitable angle in the using effect is 0 degree, so that the steam is enabled to be sprayed vertically upwards, and the condensed water in the cavity can be discharged timely at a small inclination angle.

The platinum channel humidifying device provided by the invention has the following practical dimensions, the size of a steam cavity 3 is 50mm multiplied by (1000-1500) mm, and the wall thickness of a square tube is 1 mm. The aperture of the first nozzle 41 and the second nozzle 42 is 1-3 mm, and the distance between the holes is 10-20 mm. The inner diameters of the first drain pipe 8 and the second drain pipe 9 are 5-15 mm, the lengths of the first drain pipe and the second drain pipe are 20-40 mm, and the practical use effects of the sizes are good.

The process verifies that the length of the steam cavity is 1000-1500 mm, so that dry saturated steam can be provided for the steam cavity at the normal pressure of 3bar, the pressure loss of the steam can be ignored, and the platinum channel is further uniformly humidified.