CN207570855U

CN207570855U - CEMS flue gas sampling probes

Info

Publication number: CN207570855U
Application number: CN201721463729.8U
Authority: CN
Inventors: 谢玉桃
Original assignee: Shanghai Jia Gate Electric Technology Co Ltd
Current assignee: Anhui Langsen Environmental Technology Co., Ltd.
Priority date: 2017-11-06
Filing date: 2017-11-06
Publication date: 2018-07-03
Anticipated expiration: 2027-11-06

Abstract

The utility model discloses a kind of CEMS flue gas sampling probes, its key points of the technical solution are that including flue gas sampling feeler lever and probe filter core, flue gas sampling probe heating unit is fixedly connected on the flue gas sampling feeler lever, probe filter core fixing piece is fixedly installed on the probe filter core, the utility model has the following advantages, 1) flue gas sampling in chimney/flue；2) particulate matter filters in flue gas, prevents big particulate matter from entering system, avoids system jams；3) flue gas sampling probe heats, and completes probe heating (120 DEG C or more) by flue gas probe heating unit, can effectively prevent the generation of condensed water in flue gas.

Description

CEMS flue gas sampling probes

Technical field

The utility model is related to a kind of flue gas probe, more specifically, it relates to a kind of CEMS flue gas sampling probes.

Background technology

With the development of society, the progress of science and technology, big industrial expansion, the requirement to environmental protection is higher and higher, needs to accomplish Monitoring in real time is handled in real time, and therefore, stationary source Continuous emission monitoring system is just even more important, and stationary source flue gas Discharging the flue gas sampling probe of continuous monitor system has the function of whole system very important, the flue gas in chimney or flue Under the swabbing action of sampling pump (equipment other than probe), after the heating and thermal insulation of flue gas sampling probe, dust removal by filtration, The requirement of high-precision flue gas primary filter heat preservation can be reached, then through a kind of electric tracing tube (thermostatically controlled appendix of electrical heating Road) to flue gas pretreatment unit, after preprocessed unit, flue gas analyzer is finally fed to, carries out gaseous pollutant Concentration analysis detects, and fixed pollution source smoke discharge continuous monitor system need to get off the smoke collecting in chimney or flue, into After the processing of row water-dust removing, gas analyzer is sent to carry out analysis detection, and under normal circumstances, gas analyzer, flue gas pretreatment Unit is being analyzed in room (in monitoring room), and the sampled point of flue gas should be located at by professional standard regulation on chimney or flue, sampling Pop one's head in from analysis room it is distant, in chimney the temperature ordinary circumstance of flue gas can be more than environment temperature, some be up to 300 degree with On, and contain certain density flue dust in flue gas, in this case, it is necessary to which flue gas is in the temperature condition higher than 100 degree Under be sent to flue gas pretreatment unit, otherwise because environment temperature is less than the temperature of flue gas, flue gas can agglomerate water outlet, water and flue dust Mixture can form mud can be soluble in water so as to block the tested gas such as gas pipeline, while SO2, reduces and measures concentration, fixed Pollution sources flue gas discharge continuous monitoring system is long-term 24 hours continuous operations, therefore flue gas sampling probe is needed to flue gas Heat preservation, dedusting itself will have anti-corrosion, the function of anti-blocking (preventing thin dirt from blocking filter core) blowback.

Flue gas sampling probe mainly has the following two kinds situation in practical applications at present：

A kind of situation is：Sampling pipe is built in flue or chimney, and sampling pipe is connected with sampling probe (filter front), Filter is placed in sampling probe, filter housing electrical heat tracing, and blowback air uses compressed air, and blowback mode is from filter core In blow outward, blowback air-flow is flowed into against the direction of sampling air flow in flue or chimney, filter core threadedly with after filter End cap is connected, and filter rear end cap is threadably connected with filter housing rear end, and seals, and such situation exists Problems with：It finds in practical applications, because the temperature of compressed air is relatively low, during blowback, filter element, sampling pipe, filtering Device skin temperature reduces, and after blowback is complete, when re-sampling, when the flue gas of high temperature meets the sampling probe component of low temperature, can agglomerate Water outlet, and mixture is formed with flue dust, filter core is blocked, meanwhile, blowback air is after highdensity filter element, throughput drop Low, the flue dust in filter, sampling pipe cannot be blown clean, and after long-time, can also be blocked, due to filter rear end cap and filter Housing is connected for engagement thread, because thering is water-setting to gather after blowback, in addition the corrosive gas such as SO2 act on, the easy corrosion of threaded portion, When being replaced and cleaned filter core, it is difficult to disassemble, safeguard extremely inconvenient.

Another situation is：Sampling pipe is built in flue or chimney, sampling pipe and sampling probe (filter front) phase Even, filter is placed in sampling probe, filter housing electrical heat tracing, and blowback air is had special using the compressed air of heating Compressed air heating tank, blowback mode to be blown outward in filter core, blowback air-flow against the direction of sampling air flow flow into flue or In chimney, filter core is threadedly connected with filter rear end cap, and filter rear end cap is being filtered by lever mode top pressure Device outer casing back, and seal, such situation has the following problems in practical applications, since blowback air is through overpopulation Filter element after, throughput reduces, and the flue dust in filter, sampling pipe cannot be blown clean, and after long-time, can also be blocked,

Simultaneously as employing special compressed air heating tank, therefore, the temperature of compressed air is remained, and Temperature control device is wanted, energy consumption is larger, wants within daily 24 hours about 10 degree of power consumption, and the manufacturing technology for increasing compressed air cylinder will It asks, increases cost of manufacture.

Utility model content

In view of the deficienciess of the prior art, the purpose of this utility model is to provide a kind of CEMS flue gas sampling probes.

To achieve the above object, the utility model adopts the following technical solution：A kind of CEMS flue gas sampling probes, including cigarette Gas sampling feeler lever and filter core of popping one's head in, flue gas sampling probe heating unit, the spy are fixedly connected on the flue gas sampling feeler lever Probe filter core fixing piece is fixedly installed on head filter core, probe filter core handle is fixedly connected on the probe filter core fixing piece.

As preference, the probe filter core fixing piece is reserved with gas sampling and portals and enters hole with compressed gas.

As preference, it is also associated with temperature sensor on the flue gas sampling probe heating unit.

The utility model is compared has the following advantages compared with the prior art：1) flue gas sampling in chimney/flue；2) cigarette Particulate matter filters in gas, prevents big particulate matter from entering system, avoids system jams；3) flue gas sampling probe heats, and passes through cigarette Gas probe heating unit completes probe heating (120 DEG C or more), can effectively prevent the generation of condensed water in flue gas, reduce in flue gas The generation that pipeline particulate matter caused by the loss of gas ingredients and steam crystallizes；4) temperature of temperature sensor Real-time Feedback heating Signal is conducive to the control that system effectively realizes flue gas probe heating temperature；5) flue gas sampling probe accesses compressed gas simultaneously Body (0.4MPa~1MPa), is controlled by system, periodically CEMS flue gas sampling probes can be purged so that adsorb in flue gas Particulate matter on sampling feeler lever and probe filter core is cleared up in time, and probe is effectively prevent to block.

Description of the drawings

Fig. 1 is the cross-sectional view of the utility model CEMS flue gas sampling probes.

In figure, 1- flue gas sampling feeler lever 2- flue gas sampling probe heating units 3- probe filter core 4- probe filter core fixing pieces 5- Probe filter core handle 6- gas samplings 7- compressed gas of portalling enters hole 8- temperature sensors.

Specific embodiment

The utility model CEMS flue gas sampling probe embodiments are described further below in conjunction with the accompanying drawings.

A kind of CEMS flue gas sampling probes, it is fixed on flue gas sampling feeler lever to connect including flue gas sampling feeler lever and probe filter core Flue gas sampling probe heating unit is connected to, probe filter core fixing piece is fixedly installed on filter core of popping one's head in, is popped one's head on filter core fixing piece Probe filter core handle is fixedly connected with, probe filter core fixing piece is reserved with gas sampling and portals enters hole with compressed gas, and flue gas is adopted Temperature sensor is also associated on sample probe heating unit.

Flue gas sampling feeler lever：It is installed on inside chimney or flue, extracts flue gas in chimney/flue in real time；

Flue gas sampling probe heating unit：

(1) flue gas sampling probe is connected, it is ensured that the flue gas of extraction is without gas leakage；

(2) connection probe filter core fixing piece, it is ensured that extract flue gas without gas leakage；

(3) there is high-temperature heating, the flue gas of extraction is made to be in gaseous state, is not condensed；

Probe filter core：Filter the dust inside flue gas in chimney/flue；

Probe filter core fixing piece：Connection probe filter core, while portal there are flue gas sampling and enter hole with compressed gas, complete system Two courses of work of sampling and blowback of system；

Probe filter core handle；Connection probe filter core fixing piece facilitates the installation and replacement of probe filter core；

Temperature sensor：The heating temperature situation of monitoring flue gas probe heating unit in real time.

3rd, operation principle：

During systematic sampling, flue gas is drawn into flue gas probe heating unit by flue gas sampling probe, after flue gas is heated, leads to It crosses probe filter core, filters in part of smoke after dust, portal by gas sampling and flow through system other parts；

During system blowback, compressed air enters hole by compressed gas, is blown into probe filter core, and compressed air will pop one's head on filter core Part adsorbing powder dust object by flue gas sampling feeler lever, in blowback to chimney/pipeline, have the function that cleaning.

The CEMS flue gas sampling probe implementation methods：Flue gas is by flue gas sampling feeler lever in chimney/flue, by visiting In head filter element filtering flue gas after particulate matter, gas flows through other associated components of arrival system after gas sampling is portalled；The CEMS cigarettes Gas sampling probe is mainly completed：1) flue gas sampling in chimney/flue；2) particulate matter filters in flue gas, prevents big particulate matter Into system, system jams are avoided；3) flue gas sampling probe heats, and probe heating (120 is completed by flue gas probe heating unit DEG C or more), it can effectively prevent the generation of condensed water in flue gas, reduce pipeline caused by the loss of gas ingredients and steam in flue gas The generation of particulate matter crystallization；4) temperature signal of temperature sensor Real-time Feedback heating, is conducive to system and effectively realizes flue gas The control for heating temperature of popping one's head in；5) flue gas sampling probe accesses compressed gas (0.4MPa~1MPa) simultaneously, is controlled by system, Can timing CEMS flue gas sampling probes are purged so that adsorb flue gas sampling feeler lever and probe filter core on particulate matter and When cleared up, effectively prevent probe block.

The above is only the preferred embodiment of the utility model, and the scope of protection of the utility model is not limited merely to Above-described embodiment, all technical solutions belonged under the utility model thinking belong to the scope of protection of the utility model, should refer to Go out, for those skilled in the art, several improvement under the premise of the utility model principle is not departed from and Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.

Claims

1. a kind of CEMS flue gas sampling probes, including flue gas sampling feeler lever and probe filter core, it is characterised in that：The flue gas sampling Flue gas sampling probe heating unit is fixedly connected on feeler lever, probe filter core fixing piece is fixedly installed on the probe filter core, Probe filter core handle is fixedly connected on the probe filter core fixing piece.

2. CEMS flue gas sampling probes according to claim 1, it is characterised in that：The probe filter core fixing piece is reserved with Gas sampling is portalled enters hole with compressed gas.

3. CEMS flue gas sampling probes according to claim 1, it is characterised in that：The flue gas sampling probe heating unit On be also associated with temperature sensor.