CN209148537U

CN209148537U - Applied to catalytic cracking unit regenerated flue gas analysis system

Info

Publication number: CN209148537U
Application number: CN201821517405.2U
Authority: CN
Inventors: 熊俊飞
Original assignee: Evens Control Systems Engineering (shanghai) Co Ltd
Current assignee: Evens Control Systems Engineering (shanghai) Co Ltd
Priority date: 2018-09-17
Filing date: 2018-09-17
Publication date: 2019-07-23
Anticipated expiration: 2028-09-17

Abstract

The utility model discloses one kind to be applied to catalytic cracking unit regenerated flue gas analysis system, including sampling probe module, one end of sampling probe module is connect by pipeline with one end of electronic refrigerator gas-liquid separation module, the other end of electronic refrigerator gas-liquid separation module is divided into two-way, all the way by pipeline and for carrying out CO, the infrared spectrum analyser connection of CO2 gas content measurement, another way connects industrial nitrogen import by pipeline, switch valve is equipped on the pipeline of electronic refrigerator gas-liquid separation module other end two-way, two switch valves are connect with PLC control module respectively.The utility model carries out removal particulate matter work in advance to tested gas by sampling probe module, sample gas is into high temperature heat tracing whole before electronic refrigerator gas-liquid separation module, avoid the formation of condensed water simultaneously, with PLC logic control blowing function, improve systematically reliability, it is ensured that the accuracy of measurement result；System maintenance amount is greatly reduced simultaneously.

Description

Applied to catalytic cracking unit regenerated flue gas analysis system

Technical field

The utility model relates to one kind to be applied to catalytic cracking unit regenerated flue gas analysis system, belong to petrochemical industry neck Domain.

Background technique

The coke on the regenerator unit burning-off coked catalyst on catalytic cracking unit is used in petrochemical enterprise, with The activity for restoring catalyst burns CO primary in reaction₂Ratio with CO is the function of catalyst type and temperature, regenerates cigarette Gas CO₂With the Ratio control of CO to the efficiency for improving regeneration activating catalyst with vital effect of having increased economic efficiency, But regenerated flue gas temperature is high, dust concentration is high and humidity is big (dust is mainly catalyst granules), so again to measurement analysis Sample pretreatment design before raw flue gas, which proposes, compares strict requirements.

Summary of the invention

It is carried out again technical problem to be solved by the utility model is: solving petrochemical enterprise using catalytic cracking unit Raw flue gas C0, CO₂Concentration monitor when, the problem of how improving the stabilization of measuring system, reliability and reduce maintenance.

In order to solve the above-mentioned technical problem, there is provided one kind to be applied to catalytic cracking dress for the technical solution of the utility model Set regenerated flue gas analysis system, which is characterized in that including sampling probe module, one end of sampling probe module passes through pipeline and electricity One end of sub- refrigerator gas-liquid separation module connects, and the other end of electronic refrigerator gas-liquid separation module is divided into two-way, a-road-through It crosses pipeline to connect with the infrared spectrum analyser for carrying out the measurement of CO, CO2 gas content, another way connects industrial nitrogen by pipeline Import, is equipped with switch valve on the pipeline of electronic refrigerator gas-liquid separation module other end two-way, two switch valves respectively with PLC Control module connection；Dehumidifying filter is equipped between electronic refrigerator gas-liquid separation module and infrared spectrum analyser.

Preferably, the sampling probe module is equipped with the heater for avoiding that vapor condenses in sample；Sampling probe Module is equipped with ceramic filter module.

Preferably, the sampling probe module is the equipment of the explosion-proof series of 222.20ATEX2 of BUHLER company.

Preferably, the heater is the heater that heating temperature is at least 125 degrees Celsius of heat tracings.

Preferably, the infrared spectrum analyser is the analyzer of EMERSON company X-STREAM series.

Preferably, the electronic refrigerator gas-liquid separation module is the EGK2EX type electronic cooling of BUHLER company production Device gas-liquid separation module；Electronic refrigerator gas-liquid separation module is electronic cooling and gas-liquid separation integral structure；Electronic cooling Device gas-liquid separation module is equipped with semiconductor cooling condenser.

Preferably, the system that the PLC control module uses SIEMENS company S7-200 series.

Compared with prior art, the catalytic cracking unit regenerated flue gas analysis system provided by the utility model that is applied to has such as It is lower the utility model has the advantages that

1, sample gas passes through sampling probe block heater and ceramic mistake before entering electronic refrigerator gas-liquid separation module Filter module carries out particulate matter filtering to sample and prevents condensed water generation from leading to clay block system, improves measuring system Reliability；

2, electronic refrigerator gas-liquid separation module controls using high-power refrigeration and accurately cryogenic temperature, efficiently cold to realize The purpose of solidifying water removal, dehumidification efficiency is high, reduces the response time of infrared spectrum analyser, improves measuring speed；

3, electronic refrigerator gas-liquid separation module and dehumidifying filter do not destroy tested gas chemistry, reduce measurement Error；

4, there is pretreatment system PLC to control Intelligent fixed time blowing function, further effectively improve system reliability, Reduce maintenance simultaneously；

5, the system of the utility model uses functions of modules, and structure is simple, convenient maintenance.

Detailed description of the invention

Fig. 1 is a kind of schematic diagram applied to catalytic cracking unit regenerated flue gas analysis system in measurement mode；

Fig. 2 is a kind of schematic diagram applied to catalytic cracking unit regenerated flue gas analysis system under blowback mode.

Specific embodiment

To be clearer and more comprehensible the utility model, hereby with preferred embodiment, and attached drawing is cooperated to be described in detail below.

The utility model is a kind of applied to catalytic cracking unit regenerated flue gas analysis system, as shown in Figure 1 comprising adopt One end of sample probe module 1, sampling probe module 1 is connect by pipeline with one end of electronic refrigerator gas-liquid separation module 2, electricity The other end of sub- refrigerator gas-liquid separation module 2 is divided into two-way, is connect all the way by pipeline with infrared spectrum analyser 3, and another way is logical It crosses pipeline and connects industrial nitrogen import, be equipped with switch valve on the pipeline of 2 other end two-way of electronic refrigerator gas-liquid separation module, Two switch valves are connect with PLC control module 4 respectively.The delivery outlet of the other end connection detected sample gas of sampling probe module 1, is used It is passed through in sampling probe module 1 in by sample gas.

The entrance of electronic cooling gas-liquid separation module 2 is the tested gas access after sampled 1 filtering and impurity removing of probe module, The outlet connection dehumidifying filter inlet of electronic cooling gas-liquid separation module 2, dehumidifying filter outlet connection infrared spectrum analyser 3 enter Mouthful, i.e., dehumidifying filter is equipped between electronic refrigerator gas-liquid separation module 2 and infrared spectrum analyser 3.

In the present embodiment, 222.20ATEX2 explosion-proof series of the sampling probe module 1 using BUHLER company, sampling probe Module 1 is equipped with having heaters, has heating function, and heating temperature effectively avoids in sample up to 125 degrees Celsius of heat tracings Vapor condensation, so as to cause the loss of sample component.Sampling probe module 1 has ceramic filter module resistant to high temperature simultaneously, Influence of the particulate matter component to analysis system in sample is effectively avoided, the service life of instrument is extended.

The flow path of sampling probe module 1 to electronic refrigerator gas-liquid separation module 2 uses whole 125 degrees Celsius of heat tracings, does not have There is any cold spot；Sample is without absorption, no clogging；Entire flow path and component materials are applicable in high temperature, tar, high pressure, high corruption The bad working environments of a variety of mixed compositions such as erosion prevent from blocking and corrode, while can be in explosion-proof and non-explosion-proof applications；Sampling Probe probe tube waterproof patented technology can effectively prevent shower water, liquid water to enter flowpath conduit, blocking and corrosion tester surface low Road.

In the present embodiment, infrared spectrum analyser 3 is using EMERSON company X-STREAM series.

In use, sample gas to be measured enters sampling probe module 1, enter electronic refrigerator gas by filtered sample gas Liquid separation module 2 enters dehumidifying filter after gas-liquid separation removes water and is further removed water, the sample for the filter outlet that dehumidifies Gas enters infrared spectrum analyser 3 and carries out CO, CO₂The measurement of gas content.

In the present embodiment, electronic refrigerator gas-liquid separation module 2 uses the EGK2EX type electronics system of BUHLER company production Cooler gas-liquid separation module, electronic cooling is integrated with gas-liquid separation, has not only had the function of rapid condensation sample water content but also has had Gas-liquid separation and automatic liquid-drainage function, semiconductor cooler have noiseless, it is without friction, be not required to refrigerant, be small in size, is light-weight The features such as, and reliable operation, it is easy to operate, it is easy to carry out cold regulation.

The working principle and technical parameter of electronic refrigerator gas-liquid separation module 2 are as follows:

For to sample gas fast dewatering and reducing component soluble easily in water to the greatest extent and losing, mentioned for on-line gas analysis instrument For dry intact sample gas, the damage that corrosive gas condenses to analysis meter in moist sample gas is fundamentally avoided.Electronics Refrigerator gas-liquid separation module 2 is equipped with semiconductor cooling condenser, semiconductor cooling condenser also known as semiconductor cooler, semiconductor refrigerating Device have the characteristics that noiseless, it is without friction, be not required to refrigerant, be small in size, is light-weight, and reliable operation is easy to operate, be easy into Row cold regulation.

In the present embodiment, the system of the use SIEMENS company S7-200 series of PLC control module 4.

The utility model carries out removal particulate matter work, while sample in advance to tested gas by sampling probe module 1 Gas into whole high temperature heat tracing before electronic refrigerator gas-liquid separation module 2, simultaneously, patrol with PLC by the formation for avoiding condensed water Control blowing function is collected, as shown in Fig. 2, improving systematically reliability, it is ensured that the accuracy of measurement result；It is big simultaneously Reduce system maintenance amount greatly.

Claims

1. one kind is applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that including sampling probe module (1), One end of sampling probe module (1) is connect by pipeline with one end of electronic refrigerator gas-liquid separation module (2), electronic refrigerator The other end of gas-liquid separation module (2) is divided into two-way, all the way by pipeline and for carrying out CO, CO₂Gas content measures red Outer analysis instrument (3) connection, another way connect industrial nitrogen import by pipeline, and electronic refrigerator gas-liquid separation module (2) is another It holds and is equipped with switch valve on the pipeline of two-way, two switch valves are connect with PLC control module (4) respectively；Electronic refrigerator gas-liquid Dehumidifying filter is equipped between separation module (2) and infrared spectrum analyser (3).

2. as described in claim 1 a kind of applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that described Sampling probe module (1) be equipped with the heater for avoiding vapor in sample from condensing；Sampling probe module (1) is equipped with ceramics Filtering module.

3. as claimed in claim 1 or 2 a kind of applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that The sampling probe module (1) is the equipment of the explosion-proof series of 222.20 ATEX2 of BUHLER company.

4. as claimed in claim 2 a kind of applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that described Heater be that heating temperature is at least the heaters of 125 degrees Celsius of heat tracings.

5. as described in claim 1 a kind of applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that described Infrared spectrum analyser (3) be EMERSON company X-STREAM series analyzer.

6. as described in claim 1 a kind of applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that described Electronic refrigerator gas-liquid separation module (2) be BUHLER company production EGK2 EX type electronic refrigerator gas-liquid separation module； Electronic refrigerator gas-liquid separation module (2) is electronic cooling and gas-liquid separation integral structure；Electronic refrigerator gas-liquid separation mould Block (2) is equipped with semiconductor cooling condenser.

7. as described in claim 1 a kind of applied to catalytic cracking unit regenerated flue gas analysis system, which is characterized in that described PLC control module (4) use SIEMENS company S7-200 series system.