CN205562367U - A online gaseous concentration measurement equipment for caprolactam device - Google Patents
A online gaseous concentration measurement equipment for caprolactam device Download PDFInfo
- Publication number
- CN205562367U CN205562367U CN201620256865.9U CN201620256865U CN205562367U CN 205562367 U CN205562367 U CN 205562367U CN 201620256865 U CN201620256865 U CN 201620256865U CN 205562367 U CN205562367 U CN 205562367U
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- China
- Prior art keywords
- cooler
- drying chamber
- lime set
- gas
- gas concentration
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Abstract
The utility model provides an online gaseous concentration measurement equipment for caprolactam device includes establish and crossing the cooler that the trachea was said, cooler and gas -liquid separation jar intercommunication, gas -liquid separation jar and drying chamber intercommunication, drying chamber and measurement section of thick bamboo intercommunication, laser oxygen partial pressure appearance are established and are being measured section of thick bamboo one end, cooler housing face is equipped with the heat transfer pipeline, and the heat transfer pipeline lets in coolant and reduces the temperature in the cooler casing, laser oxygen partial pressure appearance includes testing part, reflecting prism, is equipped with the passageway chamber between testing part and the reflection arris ytterbium, and the drying chamber passes through the passageway chamber and measures section of thick bamboo intercommunication, and blowing air pipe aims at reflecting prism. The utility model has the advantages of, simple structure, can get rid of complex operating condition influences the normal measuring of equipment, improves the measurement accuracy of gas strength.
Description
Technical field
The utility model relates to the equipment of on-line determination gas concentration, is particularly well-suited to the online gas concentration measuring apparatus of Caprolactam unit.
Background technology
The stills for air blowing of pimelinketone device, the oxidizing tower of hydrogen peroxide plant, the equipment such as the reactor of oximes device have higher requirement and standard to the content measurement of oxygen in tail gas, more and more higher to measurement accuracy, response speed and the reliability requirement of on-line analysis instrument.
In order to reduce the detection dust of sample, humidity, temperature to measurement accuracy and the impact of reliability, the tradition on-line analysis system such as chromatograph, electrochemical analyser, magnetic oxygen analyser often needs the pretreatment system of complexity.The application of pretreatment system adds sample process time, creates the pure delay time of analysis, also can increase considerably fault rate and maintenance workload that system is run.
Although electrochemical analyser can in site measurement, but sensor drift is big, the life-span is short etc., and shortcoming limits its range of application.In addition, currently it is widely used in traditional NDIR spectroscopic gas analytical technology of process industry because using optical filter wideband light source, detected sample gas pipeline easily exists cross jamming, and in the detection of microcomponent, is constantly subjected to background gas impact, the problems such as big drift can be produced.
Summary of the invention
The utility model provides a kind of online gas concentration measuring apparatus for Caprolactam unit, can get rid of the impact of complex working condition measurement normal on equipment and instrument, improves the measurement accuracy of gas concentration.
Realizing the technical solution of the utility model is, a kind of online gas concentration measuring apparatus for Caprolactam unit includes the cooler being located in feed channel, cooler connects with knockout drum, knockout drum connects with drying chamber, drying chamber connects with measuring cylinder, and Laser Oxygen divides instrument to be located at measuring cylinder one end；
Described housing of cooler surface is provided with heat exchange pipeline, and heat exchange pipeline is passed through cooling medium and reduces the temperature in housing of cooler body；
Described Laser Oxygen divides instrument to include test component, reflecting prism, is provided with channel lumens between test component and reflection rib ytterbium, and drying chamber is connected with measuring cylinder by channel lumens, purging tracheae alignment reflecting prism.
Further, described measuring cylinder is connected with tail gas lime set tank by No. three condensate drain valves.
Further, described knockout drum is connected with tail gas lime set tank by a condensate drain valve.
Described drying chamber is connected with tail gas lime set tank by No. two condensate drain valves.
Further, described tail gas lime set tank connects with lime set drawing pump.
The utility model has the advantages that, simple in construction, measure gas concentration accurate, adapt in complicated work condition environment.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is that Laser Oxygen divides instrument structural representation.
Such as figure, cooler 1, knockout drum 2, drying chamber 3, drier 4, measuring cylinder 5, tail gas lime set tank 6, lime set tank liquid level gauge 7, a condensate drain valve 8, No. two condensate drain valves 9, No. three condensate drain valves 10, Laser Oxygen divides instrument 11, extension reflex rib ytterbium 12, lime set drawing pump 13, test component 14, channel lumens 15.
Detailed description of the invention
In Fig. 1, a kind of online gas concentration measuring apparatus for Caprolactam unit includes the cooler 1 being located in feed channel, cooler 1 connects with knockout drum 2, knockout drum 2 and in drying chamber 3(drying chamber 3 desiccant-filled 4) connect, drying chamber 3 connects with measuring cylinder 5, and Laser Oxygen divides instrument 11 to be located at measuring cylinder 5 one end；
Cooler 1 surface of shell is provided with heat exchange pipeline, and heat exchange pipeline is passed through cooling medium and reduces the temperature in housing of cooler body, it is preferred that select plate type heat exchanger or similar heat transmission equipment, and cooling medium selects the medium such as chilled water or gas；
In Fig. 2, Laser Oxygen divides instrument 11 to include test component 14, reflecting prism 12, it is provided with channel lumens 15 between test component 14 and reflection rib ytterbium 12, during work, test component 14 emits beam through channel lumens 15, be then passed through reflecting rib ytterbium 12 to reflect, and make light again pass by the tested parts of channel lumens 15 14 to receive, test component 14 obtain signal after through processing the numerical value drawing gas concentration；Drying chamber 3 is connected with measuring cylinder 5 by channel lumens 15, the outlet alignment reflecting prism of purging tracheae inert gases such as () nitrogen of purge gas Bottomhole pressure 99.999%, during work, the inert gases such as nitrogen directly purge reflection rib ytterbium 12, it is avoided that solid and liquid mixture are attached to reflect cause the significantly decline of laser projection light intensity on rib ytterbium 12 for a long time during inspecting, purge flow rate to be controlled well (8-10L/h), prevents the high pure nitrogen of excess or inert gas from have impact on the normal of process gas and measuring.
Preferably, measuring cylinder 5 is provided with lime set tank liquid level gauge 7 by No. three condensate drain valves 10 with tail gas lime set tank 6(tail gas lime set tank 6) connect.
Preferably, knockout drum 2 is connected with tail gas lime set tank 6 by a condensate drain valve 8；
Preferably, drying chamber 3 is connected with tail gas lime set tank 6 by No. two condensate drain valves 9.
Preferably, tail gas lime set tank 6 connects with lime set drawing pump 13.
Operation principle, tested process pipeline gas first passes through cooler 1, arrive knockout drum 2 again, knockout drum 2 gas phase portion arrives drying chamber 3 again, sample gas is further dried, what drying chamber 3 gas phase portion entered back into that Laser Oxygen divides instrument 11 (divides instrument reflecting prism 12 to purge online Laser Oxygen with inert gases such as high pure nitrogens, ensure the clean of minute surface) measure entrance (channel lumens 15 entrance, and in channel lumens, complete the measurement of gas concentration), then measuring cylinder 5 is entered back into, No. three condensate drain valves 10 are installed below measuring cylinder 5, by exhaust emissions to tail gas lime set tank 6；Lime set is all emitted into tail gas lime set tank 6 by 8, No. two condensate drain valves 9 of a condensate drain valve by knockout drum 2, drying chamber 3 respectively, and each discharge pipe line is all inserted into tail gas lime set tank 50% position below, Liquid level is more than 65%, it is ensured that do not have the situation of string pressure.Use lime set drawing pump 13 lime set to be got to reclaim in the middle of tail gas absorption liquid bath or other exhaust collection equipment, and by DCS logic association, by the automatic start-stop of lime set drawing pump 13 by the Liquid level of lime set tank 6 about 65%.
Claims (4)
1. the online gas concentration measuring apparatus for Caprolactam unit, it is characterized in that: described online gas concentration measuring apparatus includes the cooler being located in feed channel, cooler connects with knockout drum, knockout drum connects with drying chamber, drying chamber connects with measuring cylinder, and Laser Oxygen divides instrument to be located at measuring cylinder one end；
Described housing of cooler surface is provided with heat exchange pipeline, and heat exchange pipeline is passed through cooling medium and reduces the temperature in housing of cooler body；
Described Laser Oxygen divides instrument to include test component, reflecting prism, is provided with channel lumens between test component and reflection rib ytterbium, and drying chamber is connected with measuring cylinder by channel lumens, purging tracheae alignment reflecting prism.
A kind of online gas concentration measuring apparatus for Caprolactam unit the most according to claim 1, is characterized in that:
Described measuring cylinder is connected with tail gas lime set tank by No. three condensate drain valves.
A kind of online gas concentration measuring apparatus for Caprolactam unit the most according to claim 1, is characterized in that: described knockout drum is connected with tail gas lime set tank by a condensate drain valve；
Described drying chamber is connected with tail gas lime set tank by No. two condensate drain valves.
4. according to a kind of online gas concentration measuring apparatus for Caprolactam unit described in Claims 2 or 3, it is characterized in that: described tail gas lime set tank connects with lime set drawing pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256865.9U CN205562367U (en) | 2016-03-30 | 2016-03-30 | A online gaseous concentration measurement equipment for caprolactam device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620256865.9U CN205562367U (en) | 2016-03-30 | 2016-03-30 | A online gaseous concentration measurement equipment for caprolactam device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205562367U true CN205562367U (en) | 2016-09-07 |
Family
ID=56812442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620256865.9U Expired - Fee Related CN205562367U (en) | 2016-03-30 | 2016-03-30 | A online gaseous concentration measurement equipment for caprolactam device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205562367U (en) |
-
2016
- 2016-03-30 CN CN201620256865.9U patent/CN205562367U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |