阅读说明：本技术 一种采用涡旋制冷除湿高炉样气的设备及其使用方法 (Device for dehumidifying blast furnace sample gas by adopting vortex refrigeration and using method thereof ) 是由 杜友尧 李超想 陆益飞 颜磊 黄军 谭天雷 赵文建 常李 项旭江 吕昌贺 陆照彬 于 2020-12-09 设计创作，主要内容包括：一种采用涡旋制冷除湿高炉样气的设备,包括涡旋制冷管,制冷器箱体,样气冷凝液排出口,温度计,压缩气源,带湿样气入口,冷干样气出口和调压阀,其中压缩气源通过调压阀和涡旋制冷管相连,压缩气源的进气量可由调压阀控制,所述涡旋制冷管与制冷器箱体相通,压缩气体可经涡旋制冷管进入制冷器箱体内,所述制冷器箱体上方一侧设有带湿样气入口,上方另一侧设有冷干样气出口,样气管道在制冷器箱体腔体内盘旋向下,管道入口与带湿样气入口连接,到达底部后与冷干样气出口相连,制冷器箱体下部还设有样气冷凝液排出口用于排出样气冷凝液,所述样气冷凝液排出口处还设有温度计,可实时监控排出的样气冷凝液的温度。(An apparatus for dehumidifying blast furnace sample gas by using vortex refrigeration comprises a vortex refrigeration pipe, a refrigerator box, a sample gas condensate discharge port, a thermometer, a compressed gas source, a wet sample gas inlet, a dry sample gas outlet and a pressure regulating valve, wherein the compressed gas source is connected with the vortex refrigeration pipe through the pressure regulating valve, the air input of the compressed gas source can be controlled by the pressure regulating valve, the vortex refrigeration pipe is communicated with the refrigerator box, the compressed gas can enter the refrigerator box through the vortex refrigeration pipe, one side above the refrigerator box is provided with the wet sample gas inlet, the other side above the refrigerator box is provided with the dry sample gas outlet, a sample gas pipeline spirals downwards in the refrigerator box cavity, the pipeline inlet is connected with the wet sample gas inlet and is connected with the dry sample gas outlet after reaching the bottom, the sample gas condensate discharge port for discharging sample gas condensate is arranged at the lower part of the refrigerator box, and the thermometer is arranged at the sample gas condensate discharge port, the temperature of the discharged sample gas condensate can be monitored in real time.)

1. The utility model provides an adopt equipment of vortex refrigeration dehumidification blast furnace appearance gas which characterized in that: the device comprises a vortex refrigeration pipe (1), a refrigerator box body (2), a sample gas condensate outlet (3), a thermometer (4), a compressed air source (5), a sample gas inlet (6) with humidity, a sample gas outlet (7) with dryness and a pressure regulating valve (8), wherein the compressed air source (5) is connected with the vortex refrigeration pipe (1) through the pressure regulating valve (8), the air inflow of the compressed air source (5) can be controlled by the pressure regulating valve (8), the vortex refrigeration pipe (1) is communicated with the refrigerator box body (2), the compressed air can enter the refrigerator box body (2) through the vortex refrigeration pipe (1), one side above the refrigerator box body (2) is provided with a sample gas inlet (6) with humidity, the other side above the refrigerator box body is provided with a sample gas outlet (7) with dryness, the sample gas pipe spirals downwards in the cavity of the refrigerator box body (2), the pipe inlet is connected with the sample gas inlet (6) with humidity, and is connected with the sample gas outlet (7) with dryness after reaching the bottom, the lower part of the refrigerator box body (2) is also provided with a sample gas condensate outlet (3) for discharging sample gas condensate, and the sample gas condensate outlet (3) is also provided with a thermometer (4) which can monitor the temperature of the discharged sample gas condensate in real time.

2. The apparatus for dehumidifying blast furnace sample gas using scroll refrigeration according to claim 1, wherein: the vortex refrigeration pipe (1) can remove high-temperature gas and obtain low-temperature gas, an adjustable valve is arranged at the high-temperature gas end, the temperature and the flow of the low-temperature gas are controlled through the adjustable valve, and the gas temperature of the compressed gas source (5) can be reduced by the vortex refrigeration pipe (1) and is not more than 40 ℃.

3. The apparatus for dehumidifying blast furnace sample gas using scroll refrigeration according to claim 1, wherein: the refrigerator box body (2) is made of heat insulating materials, and the sample gas pipeline in the cavity is made of high heat conducting materials.

4. The apparatus for dehumidifying blast furnace sample gas using scroll refrigeration according to claim 1, wherein: the compressed air source (5) is compressed air, the air pressure is 5-7 Bar, and the maximum air consumption is not more than 30L/min.

5. The use method of the equipment for dehumidifying blast furnace sample gas by vortex refrigeration as claimed in claim 1, is characterized in that: the method comprises the following steps:

A. controlling a pressure regulating valve (8) to regulate the pressure of a compressed air source (5) to 2-6Bar, and enabling the air to enter a refrigerator box body (2) after being refrigerated by a vortex refrigeration pipe (1);

B. after the air supply pressure is stable, the undried gas with the wet sample enters from a gas inlet (6) with the wet sample, flows along a coil pipe type pipeline of the refrigerator body (2), and is discharged from a cold dry sample gas outlet (7) after being cooled;

C. the temperature of gas entering a refrigerator box body (2) is regulated and controlled by regulating a regulating valve of a vortex refrigerating pipe (1), and a thermometer (4) arranged at a sample gas condensate discharging port (3) is monitored, so that the optimal refrigerating effect is obtained when the temperature is stabilized at 1-5 ℃;

D. continuously collecting the sample gas discharged from the cold dry sample gas outlet (7) to obtain the cold dry sample gas after refrigeration and dehumidification.

Technical Field

The invention belongs to the technical field of industrial cooling dehumidification, and particularly relates to equipment for dehumidifying blast furnace sample gas by adopting vortex refrigeration and a using method thereof.

Background

In the smelting process of the blast furnace, the content of the gas produced by the blast furnace needs to be analyzed in time, and CO in the gas of the blast furnace need to be analyzed₂、H₂And N₂The components were monitored on-line. Timely feedback of the trend of gas utilization by chromatographic analysis of data, e.g. by H₂The possibility of small sleeve water leakage can be preliminarily judged due to content change, and related components are intensively checked to prevent accidents. In particular, when a distribution regulation is technically adjusted or the raw fuel is drastically changed, the gas utilization may be drastically changed, and the fuel ratio of 10-15kg/tfe is affected by the theoretical gas utilization rate of 1%. At present, some iron works are smelted by blast furnacesThe water content of the coal gas is still high after the coal gas is subjected to wet dust removal, the temperature of the coal gas can reach more than 70 ℃, and the water content and the temperature of the coal gas directly influence the working precision and efficiency of a chromatographic analyzer and the service life of equipment.

Disclosure of Invention

In order to solve the problem that the water content and the temperature of coal gas are still high after wet dust removal in the prior art, the invention provides equipment for dehumidifying blast furnace sample gas by adopting vortex refrigeration and a using method thereof.

The invention adopts the following technical scheme:

an apparatus for dehumidifying blast furnace sample gas by using vortex refrigeration comprises a vortex refrigeration pipe, a refrigerator box, a sample gas condensate discharge port, a thermometer, a compressed gas source, a wet sample gas inlet, a dry sample gas outlet and a pressure regulating valve, wherein the compressed gas source is connected with the vortex refrigeration pipe through the pressure regulating valve, the air input of the compressed gas source can be controlled by the pressure regulating valve, the vortex refrigeration pipe is communicated with the refrigerator box, the compressed gas can enter the refrigerator box through the vortex refrigeration pipe, one side above the refrigerator box is provided with the wet sample gas inlet, the other side above the refrigerator box is provided with the dry sample gas outlet, a sample gas pipeline spirals downwards in the refrigerator box cavity, the pipeline inlet is connected with the wet sample gas inlet and is connected with the dry sample gas outlet after reaching the bottom, the sample gas condensate discharge port for discharging sample gas condensate is arranged at the lower part of the refrigerator box, and the thermometer is arranged at the sample gas condensate discharge port, the temperature of the discharged sample gas condensate can be monitored in real time.

As a preferred technical scheme of the invention, the vortex refrigeration pipe can remove high-temperature gas and obtain low-temperature gas, an adjustable valve is arranged at the high-temperature gas end, the temperature and the flow of the low-temperature gas are controlled by the adjustable valve, and the gas temperature of a compressed gas source can be reduced by the vortex refrigeration pipe to be not more than 40 ℃.

As a preferred technical scheme of the invention, the refrigerator box body is made of heat insulating materials, and the sample gas pipeline in the cavity is made of high heat conducting materials.

As a preferred technical scheme of the invention, the compressed air source is compressed air, the air pressure is 5-7 Bar, and the maximum air consumption is not more than 30L/min.

The use method of the equipment for dehumidifying the blast furnace sample gas by vortex refrigeration comprises the following steps:

A. controlling a pressure regulating valve to regulate the pressure of a compressed air source to 2-6Bar, and enabling the air to enter a refrigerator body after being cooled by a vortex refrigeration pipe;

B. after the air supply pressure is stable, the undried gas with the wet sample enters from a gas inlet with the wet sample, flows along a coil pipe pipeline of a refrigerator body, and is discharged from a cold dry sample gas outlet after being cooled;

C. the temperature of the gas entering the refrigerator box body is regulated and controlled by regulating a regulating valve of a vortex refrigerating pipe, and a thermometer arranged at a sample gas condensate discharging port is monitored, so that the optimal refrigerating effect is obtained when the temperature is stabilized at 1-5 ℃;

D. and continuously collecting the sample gas discharged from the cold dry sample gas outlet to obtain the cold dry sample gas subjected to refrigeration and dehumidification.

Compared with the prior art, the invention has the beneficial effects that: the cooling air flow of the device for vortex refrigeration and dehumidification of the blast furnace sample gas exchanges heat with the hot sample gas through the special pipeline design in the refrigeration dehumidifier, so that the sample gas is cooled, water vapor is condensed to achieve the purposes of dehumidification and cooling, and simultaneously, the water content and the temperature in the sample gas are reduced.

Drawings

FIG. 1 is a schematic view of an apparatus for dehumidifying blast furnace sample gas by using vortex refrigeration.

In the figure: 1. a vortex refrigeration tube; 2. a refrigerator box body; 3. a sample gas condensate discharge port; 4. a thermometer; 5. compressing a gas source; 6. a gas inlet with a wet sample; 7. a cold dry sample gas outlet; 8. a pressure regulating valve.

Detailed Description

The present invention is further described with reference to the following examples, which are provided for illustration only and are not to be construed as limiting the scope of the claims, and other alternatives which may occur to those skilled in the art are also within the scope of the claims.

Examples

An apparatus for dehumidifying blast furnace sample gas by vortex refrigeration comprises a vortex refrigeration pipe 1, a refrigerator box 2, a sample gas condensate outlet 3, a thermometer 4, a compressed gas source 5, a wet sample gas inlet 6, a cold dry sample gas outlet 7 and a pressure regulating valve 8, wherein the compressed gas source 5 is connected with the vortex refrigeration pipe 1 through the pressure regulating valve 8, the air input of the compressed gas source 5 can be controlled by the pressure regulating valve 8, the vortex refrigeration pipe 1 is communicated with the refrigerator box 2, the compressed gas can enter the refrigerator box 2 through the vortex refrigeration pipe 1, one side above the refrigerator box 2 is provided with the wet sample gas inlet 6, the other side above the refrigerator box 2 is provided with the cold dry sample gas outlet 7, the sample gas pipeline spirals downwards in the cavity of the refrigerator box 2, the pipeline inlet is connected with the wet sample gas inlet 6 and is connected with the cold dry sample gas outlet 7 after reaching the bottom, the sample gas condensate outlet 3 is arranged at the lower part of the refrigerator box 2 and used for discharging sample gas condensate, and a thermometer 4 is also arranged at the sample gas condensate outlet 3, so that the temperature of the discharged sample gas condensate can be monitored in real time.

Specifically, the vortex refrigeration pipe 1 can remove high-temperature gas and obtain low-temperature gas, an adjustable valve is arranged at the high-temperature gas end, the temperature and the flow of the low-temperature gas are controlled through the adjustable valve, and the gas temperature of the compressed gas source 5 can be reduced by the vortex refrigeration pipe 1 to be not more than 40 ℃.

Specifically, the refrigerator box 2 is made of heat insulating materials, and the sample gas pipeline in the cavity is made of high heat conducting materials.

Specifically, the compressed air source 5 is compressed air, the air pressure is 5-7 Bar, and the maximum air consumption is not more than 30L/min.

The use method of the equipment for dehumidifying blast furnace sample gas by vortex refrigeration comprises the following steps:

A. the pressure regulating valve 8 is controlled to regulate the pressure of the compressed air source 5 to 2-6Bar, and the air enters the refrigerator box body 2 after being refrigerated by the vortex refrigeration pipe 1;

B. after the air supply pressure is stable, the undried gas with the wet sample enters from a gas inlet 6 with the wet sample, flows along a coil pipe type pipeline of the refrigerator box body 2, and is discharged from a cold dry sample gas outlet 7 after being cooled;

C. the temperature of the gas entering the refrigerator box body 2 is regulated and controlled by regulating a regulating valve of the vortex refrigerating pipe 1, and meanwhile, a thermometer 4 arranged at a sample gas condensate discharging port 3 is monitored, so that the optimal refrigerating effect is obtained when the temperature is stabilized at 1-5 ℃;

D. and continuously collecting the sample gas discharged from the cold dry sample gas outlet 7 to obtain the cold dry sample gas after refrigeration and dehumidification.

The above examples are merely illustrative for clarity and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.