CN208109770U - Gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection - Google Patents
Gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection Download PDFInfo
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- CN208109770U CN208109770U CN201820750711.4U CN201820750711U CN208109770U CN 208109770 U CN208109770 U CN 208109770U CN 201820750711 U CN201820750711 U CN 201820750711U CN 208109770 U CN208109770 U CN 208109770U
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Abstract
The utility model relates to a kind of gas fume washing pretreatment systems for the sampling of catalyst for denitrating flue gas performance detection, including for absorbing the NH in sampling flue gas3、SO2、SO3Gas fume washing component, for gas fume washing component provide washing demineralized water cooling water for sending component, for remove sample flue gas in water and dust flue gas condensing filter assemblies, cooling water is connected for sending component with gas fume washing component, gas fume washing component is connected with flue gas condensing filter assemblies, and flue gas condensing filter assemblies are connected with flue gas analyzer air inlet pipe.The utility model automatically and continuously can effectively remove NH in sampling flue gas in denitrating catalyst performance testing process3、SO2、SO3、H2O, prevents from forming ammonium hydrogen sulfate obstruction pipeline, corrosion analysis instrument, and the accuracy for improving sampling reduces the maintenance and maintenance cost of system again simultaneously, prolongs the service life；Its structure is simple, at low cost, and working service is convenient, has wide applicability.
Description
Technical field
The utility model relates to the operational characteristic Indexs measure technologies of denitrating catalyst, are used for flue gas more particularly to one kind
The gas fume washing pretreatment system of denitrating catalyst performance detection sampling.
Background technique
SCR denitration is in selective catalytic reduction（SCR）Grow up on the basis of denitration technology, is SCR system
Indispensable and extremely important component part, is widely used in the SCR system of coal fired power plant in system, is main in system
Equipment.In performance, catalyst is the key that denitration Project Success, and component part, structure, service life and its relevant parameter are direct
The denitration efficiency and operation conditions of SCR system are influenced, in order to be better understood by the performance state of denitrating catalyst, denitrating catalyst
Performance obtained in laboratory detection it is particularly significant.And in denitrating catalyst experimental bench detection process, under the conditions of usually doing MR=1.0
Activity measurement to generate a large amount of the escaping of ammonia, and contains a certain amount of SO in flue gas2And water vapour, in subsequent sampling pipeline
With ammonium hydrogen sulfate is easily formed in analysis meter, cause sampling conduit blocking, burn into or rupture, cause the blocking of flue gas analyzer
And corrosion, and analyzer is the most crucial component of whole system, the damage of analyzer often will cause the decline of test accuracy,
Its maintenance cost is also highest simultaneously.Therefore, a kind of sampling gas cleaning pretreatment system how is provided, to improve sampling
Accuracy reduce the maintenance and maintenance cost of system, the problem of being those skilled in the art's urgent need to resolve again simultaneously.
Summary of the invention
The purpose of the utility model is to provide a kind of gas fume washing for the sampling of catalyst for denitrating flue gas performance detection is pre-
Processing system automatically and continuously can effectively remove NH in sampling flue gas3、SO2、SO3、H2O prevents from forming ammonium hydrogen sulfate obstruction pipe
Road, corrosion analysis instrument.
In order to achieve the above objectives, the technical solution adopted in the utility model is：
A kind of gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection, including
Gas fume washing component：For absorbing the NH in sampling flue gas3、SO2、SO3；
Cooling water is for sending component：For providing washing demineralized water to the gas fume washing component；
Flue gas condensing filter assemblies：For removing water and dust in sampling flue gas；
The cooling water is connected for sending component with the gas fume washing component, the gas fume washing component and institute
The flue gas condensing filter assemblies stated are connected, and the flue gas condensing filter assemblies are connected with flue gas analyzer air inlet pipe.
Preferably, the gas fume washing component includes absorption bottle, vapour liquid separator, and the absorption bottle is connected with air inlet
Pipe and escape pipe, water inlet pipe and outlet pipe, the escape pipe is connected with the entrance of the vapour liquid separator, it is described into
Water pipe is connected with the cooling water for sending component；The outlet of the vapour liquid separator and the flue gas condensing filtering group
Part is connected.
It is further preferred that the depth that the air inlet pipe protrudes into the absorption bottle, which is deeper than the escape pipe, protrudes into institute
The depth for the absorption bottle stated；The water inlet pipe is connected with the bottom of the absorption bottle, the outlet pipe and described
The side of absorption bottle is connected, the communicating position of the outlet pipe be located at the air inlet pipe, escape pipe bottom between.
It is further preferred that the vapour liquid separator is provided with leakage fluid dram, the leakage fluid dram is provided with positive displacement pump.
It is further preferred that the air inlet pipe is provided with the valve that control sampling flue gas enters.
It is further preferred that the cooling water includes refrigeration machine, pump assembly, the outlet of the refrigeration machine for sending component
It is connected with the water inlet pipe of the absorption bottle；The pump assembly include be arranged on the water inlet pipe of the absorption bottle into
The outlet pump that mouth pumps, is arranged on the outlet pipe of the absorption bottle.
It is further preferred that the import pump, outlet pump are peristaltic pump, and the revolving speed of the outlet pump is higher than described
Import pump revolving speed.
It is further preferred that the cooling water further includes for controlling the pump assembly feed rate for sending component
PLC water speed control unit.
Preferably, the flue gas condensing filter assemblies include：
Condenser：For removing the water vapour in sampling flue gas；
Filter：For the dust in sampling by filtration flue gas,
The entrance of the condenser is connected with the gas fume washing component, the outlet of the condenser with it is described
The entrance of filter be connected, the outlet of the filter is connected with flue gas analyzer air inlet pipe.
Preferably, the gas fume washing pretreatment system further includes the alarm system for protecting flue gas analyzer, institute
The alarm system stated includes the humidity sensor that the flue gas analyzer upstream is arranged in, passes through with the humidity sensor
The PLC guard block of signal connection.
Since above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
The utility model can automatically and continuously can effectively remove sampling flue gas in denitrating catalyst performance testing process
Middle NH3、SO2、SO3、H2O, prevents from forming ammonium hydrogen sulfate obstruction pipeline, corrosion analysis instrument, and the accuracy for improving sampling drops again simultaneously
The maintenance and maintenance cost of low system, prolong the service life；Its structure is simple, at low cost, and working service is convenient, has extensive
Practicability.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of the present embodiment；
Attached drawing 2 is the structural schematic diagram of absorption bottle in the present embodiment.
Wherein：10, absorption bottle；100, air inlet pipe；101, escape pipe；102, water inlet pipe；103, outlet pipe；104, electromagnetism
Valve；11, vapour liquid separator；110, positive displacement pump；20, refrigeration machine；21, import pump；22, outlet pump；30, condenser；31, it filters
Device；4, flue gas analyzer air inlet pipe；50, humidity sensor；51, PLC guard block.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments：
A kind of gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection as shown in Figure 1, it is main
It to include gas fume washing component, cooling water for sending component, flue gas condensing filter assemblies, alarm system.Various components are done below
It is discussed in detail.
Gas fume washing component is used to absorb the NH in sampling flue gas3、SO2、SO3.Specifically include absorption bottle 10, vapor-liquid separation
Device 11.
As shown in Figure 2：Absorption bottle 10 is used to wash sampling flue gas, is the glass container with specific shape,
Absorption bottle 10 is connected with air inlet pipe 100 and escape pipe 101, water inlet pipe 102 and outlet pipe 103.Wherein：It is arranged in air inlet pipe 100
The solenoid valve 104 for having control sampling flue gas to enter, escape pipe 101 are connected with the entrance of vapour liquid separator 11, and water inlet pipe 102 is then
It is connected with cooling water for sending component.The depth that air inlet pipe 100 protrudes into absorption bottle 10 is deeper than escape pipe 101 and protrudes into absorption bottle 10
Depth；Water inlet pipe 102 is connected with the bottom of absorption bottle 10, and outlet pipe 103 is connected with the side of absorption bottle 10.Demineralized water is logical
It crosses water inlet pipe 102 constantly to inject from the bottom of absorption bottle 10, until flooding air inlet pipe 100, but does not flood escape pipe 101, due to
The communicating position of outlet pipe 103 be located at air inlet pipe 100, escape pipe 101 bottom between, by the draining of outlet pipe 103, really
It protects liquid level and is no more than escape pipe 101.After high temperature samples flue gas enters absorption bottle 10, by sufficiently wash cooling, purification, then into
Enter vapour liquid separator 11.
The outlet of vapour liquid separator 11 is connected with flue gas condensing filter assemblies.Vapour liquid separator 11 is provided with leakage fluid dram,
Leakage fluid dram is provided with positive displacement pump 110.
Cooling water is used to provide washing demineralized water to gas fume washing component for sending component.Specifically include refrigeration machine 20, pump
Component, PLC water speed control unit.
For providing cooling and desalting water, the outlet of refrigeration machine 20 is connected refrigeration machine 20 with the water inlet pipe 102 of absorption bottle 10.
Pump assembly includes the import pump 21 being arranged on the water inlet pipe 102 of absorption bottle 10, is arranged on the outlet pipe 103 of absorption bottle 10
Outlet pump 22.In order to keep the stabilization of liquid level in absorption bottle 10, import pump 21, outlet pump 22 use peristaltic pump, wherein import pump
Outlet pump 22 is usually arranged in 160-190 r/min in 150-180r/min, the revolving speed control of outlet pump 22 in 21 revolving speed control
Revolving speed is slightly above 21 revolving speed of import pump.PLC water speed control unit then is used to control the feed rate of pump assembly.
Flue gas condensing filter assemblies are for removing water and dust in sampling flue gas.Specifically include condenser 30, filter 31.
Condenser 30 is used to remove the condensed water generated after sampling flue gas cool-down, the entrance and vapour liquid separator of condenser 30
11 outlet is connected, and the outlet of condenser 30 is connected with the entrance of filter 31.Filter 31 is used for sampling by filtration flue gas
In dust, the outlet of filter 31 is connected with flue gas analyzer air inlet pipe 4.
Alarm system includes the humidity sensor 50 that 4 upstream of flue gas analyzer air inlet pipe is arranged in, PLC guard block 51,
PLC guard block 51 receives the signal that humidity sensor 50 issues and spreads out of control instruction.When outlet pump 22 breaks down or vapour
Liquid/gas separator 11 breaks down, and when leading to humidity over limit in 50 preceding pipeline of humidity sensor, humidity sensor 50 can be timely feedbacked
Signal, and protection act is carried out by PLC guard block 51.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection, it is characterised in that：Including
Gas fume washing component：For absorbing the NH in sampling flue gas3、SO2、SO3；
Cooling water is for sending component：For providing washing demineralized water to the gas fume washing component；
Flue gas condensing filter assemblies：For removing water and dust in sampling flue gas；
The cooling water is connected for sending component with the gas fume washing component, the gas fume washing component and described
Flue gas condensing filter assemblies are connected, and the flue gas condensing filter assemblies are connected with flue gas analyzer air inlet pipe.
2. the gas fume washing pretreatment system according to claim 1 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The gas fume washing component includes absorption bottle, vapour liquid separator, the absorption bottle be connected with air inlet pipe and
Escape pipe, water inlet pipe and outlet pipe, the escape pipe are connected with the entrance of the vapour liquid separator, the water inlet pipe
It is connected with the cooling water for sending component；Outlet and the flue gas condensing filter assemblies phase of the vapour liquid separator
Connection.
3. the gas fume washing pretreatment system according to claim 2 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The depth that the air inlet pipe protrudes into the absorption bottle is deeper than the escape pipe and protrudes into the absorption bottle
Depth；The water inlet pipe is connected with the bottom of the absorption bottle, the side of the outlet pipe and the absorption bottle
Portion is connected, the communicating position of the outlet pipe be located at the air inlet pipe, escape pipe bottom between.
4. the gas fume washing pretreatment system according to claim 2 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The vapour liquid separator is provided with leakage fluid dram, and the leakage fluid dram is provided with positive displacement pump.
5. the gas fume washing pretreatment system according to claim 2 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The air inlet pipe is provided with the valve that control sampling flue gas enters.
6. the gas fume washing pretreatment system according to claim 2 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The cooling water includes refrigeration machine, pump assembly, outlet and the suction of the refrigeration machine for sending component
The water inlet pipe for receiving bottle is connected；The pump assembly includes the import pump being arranged on the water inlet pipe of the absorption bottle, setting
Outlet pump on the outlet pipe of the absorption bottle.
7. the gas fume washing pretreatment system according to claim 6 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The import pump, outlet pump are peristaltic pump, and the revolving speed of the outlet pump is higher than the import pump
Revolving speed.
8. the gas fume washing pretreatment system according to claim 6 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The cooling water is for the PLC water speed control that sending component further includes for controlling the pump assembly feed rate
Component processed.
9. the gas fume washing pretreatment system according to claim 1 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The flue gas condensing filter assemblies include：
Condenser：For removing the water vapour in sampling flue gas；
Filter：For the dust in sampling by filtration flue gas,
The entrance of the condenser is connected with the gas fume washing component, outlet and the mistake of the condenser
The entrance of filter is connected, and the outlet of the filter is connected with flue gas analyzer air inlet pipe.
10. the gas fume washing pretreatment system according to claim 1 for the sampling of catalyst for denitrating flue gas performance detection,
It is characterized in that：The gas fume washing pretreatment system further includes the alarm system for protecting flue gas analyzer, described
Alarm system includes that the humidity sensor that the flue gas analyzer upstream is arranged in and the humidity sensor pass through signal
The PLC guard block of connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750711.4U CN208109770U (en) | 2018-05-21 | 2018-05-21 | Gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820750711.4U CN208109770U (en) | 2018-05-21 | 2018-05-21 | Gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208109770U true CN208109770U (en) | 2018-11-16 |
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ID=64115477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820750711.4U Active CN208109770U (en) | 2018-05-21 | 2018-05-21 | Gas fume washing pretreatment system for the sampling of catalyst for denitrating flue gas performance detection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208109770U (en) |
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2018
- 2018-05-21 CN CN201820750711.4U patent/CN208109770U/en active Active
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