CN201212875Y - Yellow phosphoric tail gas high temperature corrosion simulating test device - Google Patents
Yellow phosphoric tail gas high temperature corrosion simulating test device Download PDFInfo
- Publication number
- CN201212875Y CN201212875Y CNU2008200813100U CN200820081310U CN201212875Y CN 201212875 Y CN201212875 Y CN 201212875Y CN U2008200813100 U CNU2008200813100 U CN U2008200813100U CN 200820081310 U CN200820081310 U CN 200820081310U CN 201212875 Y CN201212875 Y CN 201212875Y
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- CN
- China
- Prior art keywords
- tail gas
- high temperature
- temperature corrosion
- tester
- yellow phosphoric
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 238000005260 corrosion Methods 0.000 title claims abstract description 30
- 230000007797 corrosion Effects 0.000 title claims abstract description 29
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 14
- 239000010703 silicon Substances 0.000 claims abstract description 14
- 238000004088 simulation Methods 0.000 claims abstract description 11
- 238000012545 processing Methods 0.000 claims abstract description 10
- 229910052751 metal Inorganic materials 0.000 claims abstract description 9
- 239000002184 metal Substances 0.000 claims abstract description 9
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 5
- 239000000919 ceramic Substances 0.000 claims description 14
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 claims description 10
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 229910052863 mullite Inorganic materials 0.000 claims description 10
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 9
- 239000000835 fiber Substances 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 7
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 239000003973 paint Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000011160 research Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- OBSZRRSYVTXPNB-UHFFFAOYSA-N tetraphosphorus Chemical compound P12P3P1P32 OBSZRRSYVTXPNB-UHFFFAOYSA-N 0.000 abstract description 3
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 abstract 1
- 229910010271 silicon carbide Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 31
- 230000001276 controlling effect Effects 0.000 description 7
- 230000009102 absorption Effects 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000012774 insulation material Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical class [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 1
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 229940069428 antacid Drugs 0.000 description 1
- 239000003159 antacid agent Substances 0.000 description 1
- 230000001458 anti-acid effect Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011344 liquid material Substances 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model relates to a yellow phosphorus tail gas high temperature corrosion simulation tester which comprises a medium conveying apparatus, an attemperator, a measuring control device and a tail gas processing device. The tester has simple structure and low manufacture cost. Compared with common resistance wires, the tester improves heatingup speed and work stability, has good corrosion resistance, and meets the demand of special corrosion test environment by adopting nonmetal heating element silicon carbide rod. The tester adopts controlled silicon automatic temperature controller to operate automatically and control the temperature accurately. The tester is provided with a tail gas multiprocessing device, and no pollution is generated in the testing process. The tester can simulate multiple mediums to cooperate with the high temperature corrosion test, and is helpful for the metal high temperature corrosion research in industrial tail gas resource utilization.
Description
Technical field
The utility model relates to the high temperature corrosion test unit, especially a kind of yellow phosphoric tail gas high temperature corrosion simulation test device.
Background technology
At present, the recycling emphasis and the difficult point of the yellow phosphoric tail gas that produces in the yellow phosphorus industry production process.Since the nineties in 20th century, domestic some enterprise or R﹠D institution carried out some trials to utilizing yellow phosphoric tail gas as boiler fuel.Mainly be yellow phosphoric tail gas to be used as the fuel of middle low-pressure boiler, as be used for dried feed, production hot water and steam etc., but few to the corrosion mechanism research of tail gas under yellow phosphoric tail gas combustion characteristics and the high temperature.Utilize in the process actual, yellow phosphoric tail gas contains the complexity of corrosive impurity and composition, contains CO 85～92%, CO
22～4%, wherein have corrosivity and objectionable constituent phosphorus a 500～800mg/Nm
3, sulphur～300mg/Nm
3, arsenic 1～2mg/Nm
3, fluorine～500mg/Nm
3, serious to the high temperature corrosion of gas fired-boiler equipment.Therefore, China's yellow phosphoric tail gas is serious owing to its high temperature corrosion at present, the efficient resource utilization of always failing, and yellow phosphoric tail gas is that yellow phosphorus enterprise studies for a long period of time and urgent problem as the combustion gas utilization always.
The principle of laboratory simulation test chamber research yellow phosphoric tail gas high temperature corrosion, the important method that the solution yellow phosphoric tail gas endangers the boiler material high temperature corrosion.Because the complexity of yellow phosphoric tail gas corrosion composition and changeable, require used testing equipment to satisfy and keep higher test temperature, and want to satisfy intellectuality and control, provide different temperature and corrosive concentration gradients, and most critical is that equipment will possess good anti-corrosion and job stability.Known hot test device generally can not satisfy corrosion resistance, the synergistic characteristics of multiple corrosive medium.Satisfy the equipment of the former condition, manufacturing process complexity, the high shortcoming that does not overcome of cost.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of good corrosion resistance is provided, and manufacturing process is simple, cost is low, be applicable to the synergistic yellow phosphoric tail gas high temperature corrosion of polycomponent corrosive medium simulation test device.
The technical scheme that its technical matters that solves the utility model adopts is: the box hot test device that yellow phosphoric tail gas high temperature corrosion simulation test device mainly partly is made up of nonmetal heating element Elema of heating part and controllable silicon intelligent temperature control.Specifically be linked in sequence and form by medium conveying apparatus, heating and heat-insulating device, measuring and controlling and exhaust gas processing device.
Described medium conveying apparatus is made up of three Liquid dropping bottles (or gas cylinder, decide on the testing requirements corrosive medium), flow controller, ceramic protecting pipe and conveyance conduit.Corrosive medium enters flow controller, sets the flow parameter of testing requirements, enters the ceramic protecting pipe that is fixed on the high temperature corrosion test unit by conveyance conduit, and entering the perform region is high temperature corrosion test unit work burner hearth.
Described heating and heat-insulating device is made up of nonmetal heating element Elema, mullite refractory burner hearth, insulation material alumina silicate fibre and rust prevention by applying liquid material metal shell.Evenly arrange Elema, each Elema of connecting is connected with the automatic temperature-controlled instrument of controllable silicon; One-shot forming mullite refractory burner hearth guarantees sealing effectiveness; The alumina silicate fibre filled thermal insulation materials of lightweight strengthens the alumina silicate insulation layer thickness between hearth outer wall and metal shell, guarantee good heat insulation effect.Make the burner hearth maximum temperature can reach 1100 ℃.
The automatic temperature-controlled instrument of described measuring and controlling controllable silicon and high temperature platinum-Pt Rh thermopair connect to form.The automatic temperature-controlled instrument of described controllable silicon has measure portion, indicating section and control section to constitute.High temperature platinum-Pt Rh thermocouple temperature measurement end adds Metal Substrate acid-resistant and anti-high-temperature compound substance protective sleeve, and cold junction is connected with the automatic temperature-controlled instrument of controllable silicon by drawing compensating wire.Temperature signal in the test unit burner hearth that records (millivolt value) is transferred to the temperature indication and regulates part, and digital the demonstration reflects the test unit fire box temperature, and when displays temperature reached setting holding temperature value, the release of part auxiliary reclay was regulated in the temperature indication.Under the effect of auxiliary reclay, the connected sum of control contactor disconnects, and reaches power supply and outage to device, makes test unit can remain on the constant temperature duty.Be warranty test safety, the automatic temperature-controlled instrument shell of test unit shell and controllable silicon is ground protection respectively.
Three gas absorption bottles of described exhaust gas processing device and conduit are formed, and adopt multiple aqueous slkali to absorb, and avoid exhaust emission.
The beneficial effects of the utility model are:
1. this test unit fine corrosion resistance, good stability.Adopted Globar heating element, the ability rapid heat cycle, not yielding, good chemical stability is arranged, capacity antacid is extremely strong, does not react with strong acid; Work burner hearth silica removal carbon-point and exotic material do not have other by the parts of acid corrosion.
2. this test unit structure letter, single low cost of manufacture.Project organization is simple, and manufacturing process is feasible, and adopts conventional material and fittings equipment.
3. be provided with exhaust gas processing device, pollution-free generation in the experimentation.
4. this test unit is widely used.Good corrosion stability makes this device can be applicable to multiple complicated etching condition, can use yellow phosphoric tail gas industrial tail gas research of utilization in addition, such as blast furnace gas or the like.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is acidproof high temperature heating and heat-insulating device of the present utility model and profile construction synoptic diagram;
Fig. 2 is that the A of Fig. 1 is to view (containing measuring and controlling);
Fig. 3 is a test unit workflow diagram of the present utility model.
Among Fig. 1 and Fig. 2: the 1-anti-rust metal shell that sprays paint, 2-alumina silicate fibre heat-insulation layer, 3-mullite flame-proof burner hearth; 4-venthole, 5-pyrometer couple hole, 6-corrosive medium enters the hole; 7-protective cover, 8-isometrical Elema, 9-sample; 10-handgrip, 11-flat-open type fire door, the automatic temperature-controlled instrument of 12-controllable silicon; 13-digital display temperature indication adjusting apparatus, 14-A.C. voltmeter, 15-alternating current ammeter; 16-adjusting pressuring knob, 17-uni-directional push-button switch, 18-base.
Among Fig. 3: 1-medium conveying apparatus, 2-heating and heat-insulating device, 3-measuring and controlling, 4-exhaust gas processing device.
Embodiment
As shown in Figure 1, test unit main body (acidproof high temperature heating and heat-insulating device) is an one-shot forming mullite refractory burner hearth 3, eight nonmetal heating element Elemas 8 vertically, rectangular uniform is arranged with burner hearth 3 in, two ends are fixed on device alumina silicate fibre heat-insulation layer 2 outside surfaces.Burner hearth 3 and the lightweight alumina silicate heat-insulation layer 2 that sprays paint and be provided with supporting thickness between the anti-rust metal shell 1, the automatic temperature-controlled instrument 12 of the big current lead series connection of Elema 8 usefulness controllable silicon.The ceramic pipe corrosive medium advances hole 4, ceramic pipe pyrometer couple exploration hole 5, ceramic pipe tail gas outlet 6 runs through alumina silicate fibre heat-insulation layer 2 and mullite flame-proof burner hearth 3; Elema 8 and ceramic pipe corrosive medium enter 4 ceramic pipe pyrometer couple holes 5, hole, ceramic pipe tail gas hole is provided with protective cover 7 in two ends about in the of 6, play fixing and protective effect.A is in view, and flat-open type fire door 11 inside surfaces are fire resistive material, middle layer fill insulant material, the skin anti-rust metal shell that sprays paint.Measuring and controlling is made of pyrometer couple and the automatic temperature-controlled instrument 12 of controllable silicon; Wherein the automatic temperature-controlled instrument 12 of controllable silicon is made up of digital display temperature indication adjusting apparatus 13, A.C. voltmeter 14, alternating current ammeter 15, adjusting pressuring knob 16, uni-directional push-button switch 17, and digital display temperature indication adjusting apparatus 13 connects uni-directional push-button switch 17, alternating current ammeter 15, A.C. voltmeter 14, adjusting pressuring knob 16.By opening 17, regulate 16, can obtain the test condition that reaches of requiring from 13,14 and 15.As: regulate adjusting pressuring knob 16 on automatic temperature-controlled instrument 12 operation interfaces of controllable silicon, but the modifier firing rate; After reaching the setting holding temperature, digital display temperature indication adjusting apparatus 13 auxiliary reclays discharge.Under the effect of auxiliary reclay, the connected sum of control contactor disconnects, and reaches power supply and outage to device, makes test unit can remain on constant temperature work under the temperature of setting.Exhaust gas processing device 4 is formed by connecting by acidproof conduit and three absorption bottles.
As shown in Figure 2, the test unit of utility model is linked in sequence by medium conveying apparatus 1, heating and heat-insulating device 2, measuring and controlling 3 and exhaust gas processing device 4 and forms.Open measuring and controlling 3 power supplys, set test temperature, regulate suitable heating rate, after arriving the setting test temperature, multiple corrosive medium enters heating and heat-insulating device 2 burner hearths by medium conveying apparatus 1 through regulating flow velocity, and corrosive medium is full of whole burner hearth, with the abundant reagentia of sample.The tail gas that test produces enters exhaust gas processing device 4, through triple absorptions, removes objectionable constituent.
Claims (5)
1. yellow phosphoric tail gas high temperature corrosion simulation test device, it is characterized in that: being linked in sequence by medium conveying apparatus (1), heating and heat-insulating device (2), measuring and controlling (3) and exhaust gas processing device (4) forms.
2. by the described yellow phosphoric tail gas high temperature corrosion of claim 1 simulation test device, it is characterized in that: medium conveying apparatus (1) enters hole (6) through flow controller from corrosive medium by three Liquid dropping bottles or gas cylinder and enters mullite flame-proof burner hearth (3).
3. by the described yellow phosphoric tail gas high temperature corrosion of claim 1 simulation test device; it is characterized in that: heating and heat-insulating device (2) structure is as follows: one-shot forming mullite refractory burner hearth (3); eight nonmetal heating element Elemas (8) are vertical; rectangular uniform is arranged in the mullite refractory burner hearth (3); two ends are fixed on device alumina silicate fibre heat-insulation layer heat-insulation layer (2) outside surface; mullite refractory burner hearth (3) and the lightweight alumina silicate fibre heat-insulation layer (2) that sprays paint and be provided with supporting thickness between the anti-rust metal shell (1); the automatic temperature-controlled instrument of Elema (8) series connection controllable silicon (12); the ceramic pipe corrosive medium enters hole (4); ceramic pipe pyrometer couple exploration hole (5); ceramic pipe tail gas outlet (6) runs through alumina silicate fibre heat-insulation layer (2) and mullite refractory burner hearth (3); Elema (8) and ceramic pipe corrosive medium enter ceramic pipe pyrometer couple hole, hole (4) (5); ceramic pipe tail gas hole (6) two ends up and down is provided with protective cover (7); flat-open type fire door (11) inside surface is a fire resistive material; middle layer fill insulant material, the skin anti-rust metal shell that sprays paint.
4. by the described yellow phosphoric tail gas high temperature corrosion of claim 1 simulation test device, it is characterized in that: measuring and controlling is made of pyrometer couple and the automatic temperature-controlled instrument of controllable silicon (12); Digital display temperature indication adjusting apparatus (13) connects uni-directional push-button switch (17), alternating current ammeter (15), A.C. voltmeter (14), adjusting pressuring knob (16).
5. by the described yellow phosphoric tail gas high temperature corrosion of claim 1 simulation test device, it is characterized in that: exhaust gas processing device (4) is connected in series by acidproof conduit and three absorption bottles and forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200813100U CN201212875Y (en) | 2008-06-05 | 2008-06-05 | Yellow phosphoric tail gas high temperature corrosion simulating test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200813100U CN201212875Y (en) | 2008-06-05 | 2008-06-05 | Yellow phosphoric tail gas high temperature corrosion simulating test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201212875Y true CN201212875Y (en) | 2009-03-25 |
Family
ID=40497051
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200813100U Expired - Fee Related CN201212875Y (en) | 2008-06-05 | 2008-06-05 | Yellow phosphoric tail gas high temperature corrosion simulating test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201212875Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929945B (en) * | 2009-08-21 | 2013-07-31 | 昆明理工大学 | Low-temperature dew point corrosion experiment method for phosphorus in yellow phosphorus tail gas on boiler material and device thereof |
-
2008
- 2008-06-05 CN CNU2008200813100U patent/CN201212875Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929945B (en) * | 2009-08-21 | 2013-07-31 | 昆明理工大学 | Low-temperature dew point corrosion experiment method for phosphorus in yellow phosphorus tail gas on boiler material and device thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090325 Termination date: 20120605 |