CN206609611U - It is a kind of to simulate the detection means that ammonium hydrogen sulfate blocks air preheater heat exchange element - Google Patents
It is a kind of to simulate the detection means that ammonium hydrogen sulfate blocks air preheater heat exchange element Download PDFInfo
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- CN206609611U CN206609611U CN201720382293.3U CN201720382293U CN206609611U CN 206609611 U CN206609611 U CN 206609611U CN 201720382293 U CN201720382293 U CN 201720382293U CN 206609611 U CN206609611 U CN 206609611U
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- heat exchange
- exchange element
- hydrogen sulfate
- reactor
- ammonium hydrogen
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Abstract
The utility model is related to a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element, including the detection reactor that air distribution system, the entrance of live flue gas condition or directly scene extraction ash-laden gas are connected with described air distribution system can be simulated, described detection reactor includes reactor shell, the heat exchange element box being arranged in described reactor enclosure body and the temperature control system to carrying out temperature adjustment in described reactor enclosure body, and heat exchange element is replaceable to be placed in described heat exchange element box.The utility model is by simulating live flue gas condition or directly scene extraction ash-laden gas, deposition and laws for plugging of the ammonium hydrogen sulfate on heat exchange element under the conditions of accurate simulation difference Gas Parameters, are that coal-burning power plant's air preheater ammonium hydrogen sulfate Anti-clogging technological development lays the foundation.
Description
Technical field
The utility model is related to a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element.
Background technology
Currently, SCR gas denitrifying technologies are commonly used in fired power generating unit at home, in strict environmental emission standard and
NOxUnder minimum discharge situation, because catalyst inactivation, the spray unequal factor of ammonia cause the air preheater that excessive spray ammonia triggers by sulphur
Sour hydrogen ammonium clogging takes place frequently.And the clogging research for depositing and causing on air preheater heat exchange element for ammonium hydrogen sulfate is still
There is not the analoging detecting device of practicality.Therefore, in the urgent need to one kind is generated and blocked bar based on ammonium hydrogen sulfate on air preheater
Part, to invent a set of moving analog detection means, can be opened for ammonium hydrogen sulfate blockage problem Prevention Technique on air preheater
Hair lays the foundation.
The content of the invention
The purpose of this utility model is to provide a kind of detection dress for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element
Put, available for air under the conditions of ammonium hydrogen sulfate deposition characteristics research under laboratory simulation flue gas condition and actual field ash-laden gas
The research of preheater laws for plugging.
To reach above-mentioned purpose, the technical solution adopted in the utility model is：
A kind of ammonium hydrogen sulfate of simulating blocks the detection means of air preheater heat exchange element, including distribution/extract system, enters
The detection reactor that mouth is connected with described air distribution system, described detection reactor includes reactor shell, is arranged on institute
The heat exchange element box in reactor enclosure body stated and the temperature control system to carrying out temperature adjustment in described reactor enclosure body
System, heat exchange element is replaceable to be placed in described heat exchange element box.
Preferably, described detection means, including be provided with the base of roller, described air distribution system, detection reactor
It is integrated on described base.
Preferably, described heat exchange element box is provided at both ends with the adjustable neck of spacing, and heat exchange element passes through described
Neck is fixed.
Preferably, described temperature control system includes being arranged on multigroup along airflow direction point in described reactor enclosure body
The heat exchanger of cloth, the heat exchanger described in every group includes that the heat exchange coil of compressed air can be passed through.
Preferably, setting-out hole, peep hole are offered in described reactor shell.
Preferably, described reactor shell, heat exchange element box are the material of stainless steel.
Preferably, described air distribution system includes being connected with the entrance of described detection reactor being connected ammonia source of the gas
Ammonia conveyance conduit, connect steam source of the gas steam conveying pipe, sulfur trioxide generator, in addition to described sulfur trioxide
Generator, which is connected, can directly extract the former smoke conveying duct of live ash-laden gas, connect the nitrogen gas delivery-line of Nitrogen source gases
And the sulfur dioxide conveyance conduit of connection sulfur dioxide source of the gas.
Preferably, it is provided with flue gas blender between described air distribution system and detection reactor inlet.
Preferably, described air distribution system, the outlet of described detection reactor are provided with pumping/air inducing part.
Preferably, the entrance of described detection reactor, outlet are provided with temperature, pressure monitoring point.
Because above-mentioned technical proposal is used, the utility model has following advantages compared with prior art：
The utility model is by simulating live flue gas condition or directly extracting live ash-laden gas, accurate simulation ammonium hydrogen sulfate
Deposition and laws for plugging under different flue gas conditions on heat exchange element, are that coal-burning power plant's air preheater ammonium hydrogen sulfate blocking is anti-
Technological development is controlled to lay the foundation.
Brief description of the drawings
Accompanying drawing 1 is the structural representation of the present embodiment；
Accompanying drawing 2 is the schematic diagram of sample box in the present embodiment.
Wherein：10th, ammonia conveyance conduit；11st, steam conveying pipe；12nd, sulfur trioxide generator；13rd, former flue gas conveying
Pipeline；14th, nitrogen gas delivery-line；15th, sulfur dioxide conveyance conduit；20th, reactor shell；200th, peep hole；21st, heat exchange element
Box；210th, neck；22nd, heat exchanger；30th, base；31st, roller；4th, flue gas blender；5th, temperature, pressure monitoring point；6th, it is evacuated
Pump；7th, air-introduced machine.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to the utility model：
A kind of simulation ammonium hydrogen sulfate as shown in Figure 1 blocks the detection means of air preheater heat exchange element, mainly includes
The detection reactor that air distribution system, entrance are connected with air distribution system.Wherein：
Air distribution system provides reaction flue gas for experiment, specifically includes and is connected ammonia gas with detecting that the entrance of reactor is connected
The ammonia conveyance conduit 10 in source, steam conveying pipe 11, the sulfur trioxide generator 12 for connecting steam source of the gas, in addition to three oxygen
Change sulfurous generator 12, which is connected, to be connected the former smoke conveying duct 13 that can directly extract live ash-laden gas, connects Nitrogen source gases
Nitrogen gas delivery-line 14 and the sulfur dioxide conveyance conduit 15 for connecting sulfur dioxide source of the gas, each component gas can be adjusted as needed
The concentration of body.Aspiration pump 6 can be set on former smoke conveying duct 13, be easy to extract the reality of air preheater entrance at the scene
Border ash-laden gas.
Detection reactor includes reactor shell 20, the heat exchange element box 21 being arranged in reactor shell 20 and to anti-
Answer the temperature control system that temperature adjustment is carried out in device housing 20.Flue gas blender 4 is provided between detection reactor inlet,
Mix the flue gas of air distribution system conveying；The outlet of detection reactor is provided with air-introduced machine 7.Wherein：
Reactor shell 20 uses stainless steel, is vertical or vertical rectangular parallelepiped structure, and its specific size is about length
Spend 1500mm, sectional area 60mm.Setting-out hole, peep hole 200 are offered in reactor shell 20, peep hole 200 is high temperature glass
Glass borehole structure, can be sunk with the light in complex reaction device housing 20 to understand heat exchange element different temperatures section ammonium hydrogen sulfate
Product and stopping state.
Heat exchange element box 21 is also the stainless steel structure of cuboid, heat exchange element box 21 to be provided at both ends with spacing adjustable
Neck 210, conveniently can fix and change different types of heat exchange element（NF6, DU, CU, NU/L etc.）, heat exchange element spacing can root
Adjusted according to on-site actual situations.
Temperature control system includes the heat exchanger 22 being arranged in reactor shell 20, and heat exchanger 22 uses multisection type, has
Body can set 4-8 groups, and one of which or multigroup is started when different section falling temperature gradients are unsatisfactory for requiring in reactor shell 20,
To meet the cooling needs needed for experiment, and each section of cooling extent of reactor airflow direction, flue-gas temperature scope 80- is adjusted flexibly
250℃.In the present embodiment：The use of heat exchanger 22 can be passed through the heat exchange coil of compressed air.
Detection means also includes the base 30 for being provided with roller 31, and air distribution system, detection reactor are integrated on base 30,
It is readily transported, actual ash-laden gas and fixation are extracted in scene movement.
In addition, the entrance, outlet in detection reactor are provided with temperature, pressure monitoring point 5.
Above-described embodiment is only to illustrate technical concepts and features of the present utility model, and its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, protection domain of the present utility model can not be limited with this.
All equivalent change or modifications made according to the utility model Spirit Essence, should all cover protection domain of the present utility model it
It is interior.
Claims (10)
1. a kind of simulate the detection means that ammonium hydrogen sulfate blocks air preheater heat exchange element, it is characterised in that：Including distribution system
The detection reactor that system, entrance are connected with described air distribution system, described detection reactor includes reactor shell, set
Heat exchange element box in described reactor enclosure body and the temperature control to carrying out temperature adjustment in described reactor enclosure body
System processed, heat exchange element is replaceable to be placed in described heat exchange element box.
2. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Described detection means also includes being provided with the base of roller, and described air distribution system, detection reactor are integrated in
On described base.
3. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Described heat exchange element box is provided at both ends with the adjustable neck of spacing, and heat exchange element is solid by described neck
It is fixed.
4. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Described temperature control system is multigroup along changing that airflow direction is distributed in described reactor enclosure body including being arranged on
Hot device, the heat exchanger described in every group includes that the heat exchange coil of compressed air can be passed through.
5. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Setting-out hole, peep hole are offered in described reactor shell.
6. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Described reactor shell, heat exchange element box are the material of stainless steel.
7. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：The ammonia that described air distribution system is connected ammonia source of the gas including being connected with the entrance of described detection reactor is defeated
Send pipeline, connect steam source of the gas steam conveying pipe, sulfur trioxide generator, in addition to described sulfur trioxide generator
The former smoke conveying duct of live ash-laden gas, the nitrogen gas delivery-line for connecting Nitrogen source gases and company can directly be extracted by being connected
Connect the sulfur dioxide conveyance conduit of sulfur dioxide source of the gas.
8. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Flue gas blender is provided between described air distribution system and detection reactor inlet.
9. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：Described air distribution system, the outlet of described detection reactor are provided with pumping/air inducing part.
10. a kind of detection means for simulating ammonium hydrogen sulfate blocking air preheater heat exchange element according to claim 1, its
It is characterised by：The entrance of described detection reactor, outlet are provided with temperature, pressure monitoring point.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720382293.3U CN206609611U (en) | 2017-04-12 | 2017-04-12 | It is a kind of to simulate the detection means that ammonium hydrogen sulfate blocks air preheater heat exchange element |
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|---|---|---|---|
| CN201720382293.3U CN206609611U (en) | 2017-04-12 | 2017-04-12 | It is a kind of to simulate the detection means that ammonium hydrogen sulfate blocks air preheater heat exchange element |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028137A (en) * | 2018-08-06 | 2018-12-18 | 东方电气集团东方锅炉股份有限公司 | A kind of tubular preheater and its control method preventing ammonium hydrogen sulfate deposition |
| CN109632277A (en) * | 2018-12-17 | 2019-04-16 | 华电电力科学研究院有限公司 | A kind of rotary regenerative air heater heat exchange element performance test system and method |
| CN111111435A (en) * | 2020-01-15 | 2020-05-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Process system for preventing low-temperature SCR catalyst from being inactivated and control method thereof |
| CN112648635A (en) * | 2020-11-06 | 2021-04-13 | 苏州西热节能环保技术有限公司 | Steam soot blowing optimization guidance method for boiler air preheater |
| CN113237065A (en) * | 2021-01-13 | 2021-08-10 | 姚燕 | Intelligent control waste acid cracking furnace and waste sulfuric acid cracking process |
| CN113514239A (en) * | 2021-06-24 | 2021-10-19 | 国家能源集团新疆能源有限责任公司 | Air distribution plate online detection method and system and storage medium |
| CN114360354A (en) * | 2021-12-15 | 2022-04-15 | 苏州西热节能环保技术有限公司 | Method for simulating deposition process of fly ash and ammonium bisulfate in flue gas on air preheater |
-
2017
- 2017-04-12 CN CN201720382293.3U patent/CN206609611U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109028137A (en) * | 2018-08-06 | 2018-12-18 | 东方电气集团东方锅炉股份有限公司 | A kind of tubular preheater and its control method preventing ammonium hydrogen sulfate deposition |
| CN109632277A (en) * | 2018-12-17 | 2019-04-16 | 华电电力科学研究院有限公司 | A kind of rotary regenerative air heater heat exchange element performance test system and method |
| CN111111435A (en) * | 2020-01-15 | 2020-05-08 | 中国能源建设集团广东省电力设计研究院有限公司 | Process system for preventing low-temperature SCR catalyst from being inactivated and control method thereof |
| CN112648635A (en) * | 2020-11-06 | 2021-04-13 | 苏州西热节能环保技术有限公司 | Steam soot blowing optimization guidance method for boiler air preheater |
| CN113237065A (en) * | 2021-01-13 | 2021-08-10 | 姚燕 | Intelligent control waste acid cracking furnace and waste sulfuric acid cracking process |
| CN113514239A (en) * | 2021-06-24 | 2021-10-19 | 国家能源集团新疆能源有限责任公司 | Air distribution plate online detection method and system and storage medium |
| CN114360354A (en) * | 2021-12-15 | 2022-04-15 | 苏州西热节能环保技术有限公司 | Method for simulating deposition process of fly ash and ammonium bisulfate in flue gas on air preheater |
| CN114360354B (en) * | 2021-12-15 | 2024-06-11 | 苏州西热节能环保技术有限公司 | Method for simulating deposition process of fly ash and ammonium bisulfate in flue gas on air preheater |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171103 Termination date: 20200412 |