CN211425743U - Coke oven gas orifice plate and small nozzle resistance measuring device - Google Patents
Coke oven gas orifice plate and small nozzle resistance measuring device Download PDFInfo
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- CN211425743U CN211425743U CN202020136882.5U CN202020136882U CN211425743U CN 211425743 U CN211425743 U CN 211425743U CN 202020136882 U CN202020136882 U CN 202020136882U CN 211425743 U CN211425743 U CN 211425743U
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- small nozzle
- coke oven
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Abstract
The utility model relates to a coke oven gas flow analysis technical field especially relates to a coke oven gas orifice plate and little nozzle resistance measuring device. Comprises a small pore plate/small nozzle front pressure measuring tube, a small pore plate/small nozzle rear pressure measuring tube and a plug; the pressure measurement pipe is hollow tube structure behind preceding pressure measurement pipe of orifice plate/little nozzle and orifice plate/little nozzle, behind pressure measurement pipe of orifice plate/little nozzle and orifice plate/little nozzle one end rigid coupling on the plug to stretch out the plug as measuring the mouth, measure the mouth and link to each other with the pressure gauge, orifice plate/little nozzle front pressure measurement pipe's the terminal side opening of the other end. The resistance of the small pore plate and the small nozzle of the coke oven gas can be accurately measured; has the advantages of simple structure, light weight, convenient use, repeated use, economy and practicality.
Description
Technical Field
The utility model relates to a coke oven gas flow analysis technical field especially relates to a coke oven gas orifice plate and little nozzle resistance measuring device.
Background
In the production process of the coke oven, in order to achieve the highest thermal efficiency, namely, on the premise of ensuring the maturity of coke, the minimum amount of coal gas is used, the lowest coking heat consumption is achieved, and the uniformity of the temperature of each vertical flue of the same combustion chamber is an important index for controlling the coking heat consumption. The temperature in each vertical flue is determined by the amount of coal gas and air entering the vertical flue and participating in combustion, wherein the amount of coal gas plays a decisive role, the coke oven gas orifice plate/small nozzle is the key for distributing the amount of coal gas of each flue in the same combustion chamber, and the resistance of the orifice plate/small nozzle determines the distribution amount of the coal gas.
At present, an effective measurement method for resistance of the coke oven gas orifice plate/small nozzle is not available, empirical calculation and computer simulation are mostly relied on, accuracy of the empirical calculation or the computer simulation cannot be verified due to the fact that the effective measurement method is not available, so that the arrangement of the coke oven gas orifice plate/small nozzle is not reasonable, temperature is not uniform, coking heat consumption is affected, meanwhile, due to the fact that the temperature of the flame path is too low, coke is immature, and due to the fact that the temperature of the flame path is too high, a furnace body is damaged.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a resistance measuring device of a coke oven gas small hole plate and a small nozzle, which can accurately measure the resistance of the coke oven gas small hole plate and the small nozzle; has the advantages of simple structure, light weight, convenient use, repeated use, economy and practicality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a coke oven gas orifice plate and small nozzle resistance measuring device comprises a pressure measuring tube in front of the orifice plate/small nozzle, a pressure measuring tube behind the orifice plate/small nozzle and a plug; the pressure measurement pipe is hollow tube structure behind preceding pressure measurement pipe of orifice plate/little nozzle and orifice plate/little nozzle, behind pressure measurement pipe of orifice plate/little nozzle and orifice plate/little nozzle one end rigid coupling on the plug to stretch out the plug as measuring the mouth, measure the mouth and link to each other with the pressure gauge, orifice plate/little nozzle front pressure measurement pipe's the terminal side opening of the other end.
The length L1 of the pressure measuring tube in front of the orifice plate/small nozzle is required to extend at least 20mm behind the coke oven gas orifice plate/small nozzle.
The length L2 of the pressure measuring tube behind the orifice plate/small nozzle is required to be at least 20mm away from the coke oven gas orifice plate/small nozzle.
The head part of the plug is in a regular hexagon shape and is matched with a mounting hole of a small pore plate/a small nozzle in a coke oven gas heating reducing four-way; the tail part is cylindrical and is provided with external threads.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the tail end of the pressure measuring pipe is provided with a side opening in front of the orifice plate/the small nozzle, so that the interference of gas flow to a measuring result in the measuring process is avoided, and the accuracy of the measuring result is ensured;
2) the plug is matched with the mounting holes of the small pore plate/the small nozzle in the coke oven gas heating reducing cross, so that no gas leakage occurs in the measuring process, and the accuracy of the measuring result is ensured; the plug head is regular hexagon, is convenient for install and is dismantled.
3) The pressure measuring tube before the orifice plate/small nozzle and the pressure measuring tube after the orifice plate/small nozzle can measure simultaneously, the pressure measuring tube before the orifice plate/small nozzle is connected to the (+) end of the measuring instrument, the pressure measuring tube after the orifice plate/small nozzle is connected to the (-) end of the measuring instrument, and the obtained indicator is the resistance of the orifice plate/small nozzle;
4) has the advantages of simple structure, light weight, convenient use, repeated use, economy and practicality.
Drawings
FIG. 1 is a front sectional view of the structure of the present invention;
fig. 2 is a sectional view taken along the line a in fig. 1.
In the figure: 1-plug head 2-plug tail 3-small orifice plate/small nozzle front pressure measuring tube 4-small orifice plate/small nozzle front pressure measuring tube 5-side opening 6-measuring opening
Detailed Description
The following detailed description of embodiments of the present invention is provided with reference to the accompanying drawings:
as shown in figures 1 and 2, the coke oven gas orifice plate and small nozzle resistance measuring device comprises a pressure measuring pipe 3 in front of the orifice plate/small nozzle, a pressure measuring pipe 4 behind the orifice plate/small nozzle and a plug. The pressure measurement pipe 4 behind pressure measurement pipe 3 before orifice plate/little nozzle and orifice plate/little nozzle is hollow tube structure, and pressure measurement pipe 4 one end rigid coupling is on the plug behind pressure measurement pipe 3 before orifice plate/little nozzle and the orifice plate/little nozzle to stretch out the plug as pressure measurement mouth 6, measure mouthful 6 and link to each other with the pressure gauge, the other end of pressure measurement pipe 3 before orifice plate/little nozzle is equipped with side aperture 5.
The length L1 of the pressure measuring tube 3 before the orifice plate/small nozzle is required to extend at least 20mm beyond the coke oven gas orifice plate/small nozzle.
The length L2 of the pressure measuring tube 4 behind the orifice plate/small nozzle is required to be 20mm away from the orifice plate/small nozzle of the coke oven gas.
The plug head 1 is regular hexagon and is matched with the mounting hole of the small pore plate/small nozzle in the coke oven gas heating reducing four-way; the tail part 2 of the plug is cylindrical and is provided with external threads.
Example (b):
the tail part 2 of the plug is DN32mm, the wall thickness is 2mm, the height is 20mm, the side length of the regular hexagon of the plug head part 1 is 56mm, and the height is 10mm, so that the plug can be conveniently installed and disassembled;
the diameter of the pressure measuring tube before the orifice plate/small nozzle is 4mm, the wall thickness is 0.5mm, the length is 150mm, the distance between the opening position and the tail end is 5mm, the diameter of the pressure measuring tube after the orifice plate/small nozzle is 4mm, the wall thickness is 0.5mm, and the length is 50 mm; the length of the measuring port 6 is 20 mm; the materials are stainless steel, and the stainless steel can not react with any component in the coal gas, so that the accuracy of a sampling result can be ensured.
During operation, the original screwed plug at the mounting hole of the small pore plate/small nozzle in the coke oven gas reducing cross is unscrewed, the utility model device is stretched into the mounting hole, the pressure measuring tube 3 in front of the small pore plate/small nozzle is ensured to stretch into the small pore plate/small nozzle, and the screwed plug is screwed tightly and does not leak gas; the measuring port 6 of the pressure measuring tube 3 in front of the orifice plate/small nozzle is connected to the (+) end of the measuring instrument, the measuring port 6 of the pressure measuring tube 4 behind the orifice plate/small nozzle is connected to the (-) end of the measuring instrument, and the obtained index is the resistance of the orifice plate/small nozzle. The measuring instrument is a KIMOMP110 type electronic micro manometer.
The utility model discloses 3 ends of pressure measurement pipe are side opening 5 before orifice plate/little nozzle, avoid in the measurement process gas flow to disturb the measuring result, guarantee measuring result's accuracy. The plug is matched with the mounting holes of the small pore plate/the small nozzle in the coke oven gas heating reducing cross, so that no gas leakage occurs in the measuring process, and the accuracy of the measuring result is ensured; the plug head 1 is regular hexagon, and is convenient to install and dismantle. The pressure measuring tube 3 before the orifice plate/small nozzle and the pressure measuring tube 4 after the orifice plate/small nozzle can simultaneously measure, the pressure measuring tube 3 before the orifice plate/small nozzle is connected to the (+) end of the measuring instrument, the pressure measuring tube 4 after the orifice plate/small nozzle is connected to the (-) end of the measuring instrument, and the obtained indication is the resistance of the orifice plate/small nozzle; the measurement is convenient and accurate. The utility model has the advantages of simple structure, light weight, convenient use, repeated use for many times, economy and practicality.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (4)
1. A coke oven gas orifice plate and small nozzle resistance measuring device is characterized by comprising a pressure measuring tube in front of the orifice plate/small nozzle, a pressure measuring tube behind the orifice plate/small nozzle and a plug; the pressure measurement pipe is hollow tube structure behind preceding pressure measurement pipe of orifice plate/little nozzle and orifice plate/little nozzle, behind pressure measurement pipe of orifice plate/little nozzle and orifice plate/little nozzle one end rigid coupling on the plug to stretch out the plug as measuring the mouth, measure the mouth and link to each other with the pressure gauge, orifice plate/little nozzle front pressure measurement pipe's the terminal side opening of the other end.
2. The coke oven gas orifice plate and small nozzle resistance measuring device of claim 1, wherein the length L1 of the pressure measuring tube before the orifice plate/small nozzle is required to extend at least 20mm after the coke oven gas orifice plate/small nozzle.
3. The coke oven gas orifice plate and small nozzle resistance measuring device of claim 1, wherein the length L2 of the orifice plate/small nozzle rear pressure measuring tube is required to be at least 20mm from the coke oven gas orifice plate/small nozzle.
4. The coke oven gas orifice plate and small nozzle resistance measuring device of claim 1, wherein the plug head is regular hexagon and is matched with the coke oven gas heating reducing four-way orifice plate/small nozzle mounting hole; the tail part is cylindrical and is provided with external threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020136882.5U CN211425743U (en) | 2020-01-20 | 2020-01-20 | Coke oven gas orifice plate and small nozzle resistance measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020136882.5U CN211425743U (en) | 2020-01-20 | 2020-01-20 | Coke oven gas orifice plate and small nozzle resistance measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211425743U true CN211425743U (en) | 2020-09-04 |
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ID=72287331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020136882.5U Active CN211425743U (en) | 2020-01-20 | 2020-01-20 | Coke oven gas orifice plate and small nozzle resistance measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211425743U (en) |
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2020
- 2020-01-20 CN CN202020136882.5U patent/CN211425743U/en active Active
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