CN2699302Y - Ammonia decomposition rate and nitriding nitrogen potential measuring device of heat treatment nitriding furnace - Google Patents
Ammonia decomposition rate and nitriding nitrogen potential measuring device of heat treatment nitriding furnace Download PDFInfo
- Publication number
- CN2699302Y CN2699302Y CN 200420026322 CN200420026322U CN2699302Y CN 2699302 Y CN2699302 Y CN 2699302Y CN 200420026322 CN200420026322 CN 200420026322 CN 200420026322 U CN200420026322 U CN 200420026322U CN 2699302 Y CN2699302 Y CN 2699302Y
- Authority
- CN
- China
- Prior art keywords
- electromagnetic valve
- solenoid valve
- water
- nitriding
- decomposition rate
- Prior art date
- 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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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 28
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 title claims abstract description 26
- 238000005121 nitriding Methods 0.000 title claims abstract description 23
- 229910052757 nitrogen Inorganic materials 0.000 title claims abstract description 13
- 238000010438 heat treatment Methods 0.000 title abstract description 6
- 238000000354 decomposition reaction Methods 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 40
- 239000002351 wastewater Substances 0.000 claims abstract description 29
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 238000005070 sampling Methods 0.000 claims abstract description 9
- 239000007789 gas Substances 0.000 claims description 18
- 238000010494 dissociation reaction Methods 0.000 claims description 17
- 230000005593 dissociations Effects 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 11
- 230000003020 moisturizing effect Effects 0.000 claims description 8
- 238000010926 purge Methods 0.000 claims description 5
- 238000007669 thermal treatment Methods 0.000 claims description 5
- 239000002912 waste gas Substances 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 3
- 230000003472 neutralizing effect Effects 0.000 abstract description 2
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- DNTFEAHNXKUSKQ-RFZPGFLSSA-N (1r,2r)-2-aminocyclopentane-1-sulfonic acid Chemical compound N[C@@H]1CCC[C@H]1S(O)(=O)=O DNTFEAHNXKUSKQ-RFZPGFLSSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model relates to a device for measuring ammonia decomposition rate and nitriding nitrogen potential of a heat treatment nitriding furnace. The structure is that the input end of the computer or the programmable logic controller is connected with the output end of the liquid level sensor; the output end of the computer or the programmable logic controller is connected with the ammonia decomposition rate electric signal output, the water storage device is connected with a water inlet electromagnetic valve and a water replenishing electromagnetic valve, wherein the water inlet electromagnetic valve is connected with the reactor, the reactor is connected with a sampling electromagnetic valve, a cleaning electromagnetic valve and a discharge electromagnetic valve, and the discharge electromagnetic valve is respectively connected with the waste gas burner and the waste water neutralizer; the waste gas burner is connected with the exhaust port, and the waste water neutralizer is connected with the neutralizing electromagnetic valve and the waste water electromagnetic valve; the waste water electromagnetic valve is provided with a water outlet; the liquid level sensor is connected with the water storage device. The advantages are that: can fully automatically and accurately measure the ammonia decomposition rate, has the advantages of reducing pollution, meeting the green heat treatment specification and requirement, having low price and being widely used for measuring the ammonia decomposition rate and the nitriding nitrogen potential of a nitriding furnace.
Description
Technical field
The utility model relates to a kind of ammonia dissociation rate and nitriding nitrogen gesture measurement mechanism of thermal treatment nitriding furnace.Belong to nitrogen gesture measurement mechanism technical field.
Background technology
At present, when carrying out the gas nitriding processing with the thermal treatment nitriding furnace, most of nitriding equipment does not all have nitrogen gesture measurement mechanism, but with practical experience manual shift ammonia flow, so the nitriding quality is difficult to guarantee; Small part nitriding equipment configuration manual ammonia dissociation rate measurement mechanism, but all operations of this device all needs the people manually to operate, complicated operation, reading error is big, can not realize the automatic control of nitrogen gesture, the waste gas of discharge, waste water are harmful to environment; Also had minority nitriding equipment configuration infrared instrument of ammonia or hydrogen is popped one's head in and is realized the control of ammonia dissociation rate, nitrogen gesture, but they all have deficiency, and the infrared instrument price of ammonia is surprisingly high, difficult in maintenance, waste gas, waste water are untreated, and hydrogen probe wants meter specially could realize that the nitrogen gesture controls, price height and can not verification.
Summary of the invention
The purpose of this utility model is for that overcome existing nitriding device measuring device or not automatic or inaccurate or not environmental protection or uneconomical or the like defective and deficiency, propose a kind of automatically, accurately, reduce that exhaust emission and contaminated wastewater discharge, the ammonia dissociation rate of environmental protection, cheap thermal treatment nitriding furnace and nitriding nitrogen gesture measurement mechanism.Solution of the present utility model: the output terminal of the input termination liquid level sensor of computing machine or programmable logic controller (PLC); The output termination ammonia dissociation rate electric signal output of computing machine or programmable logic controller (PLC), water receiver taps into water solenoid valve, moisturizing solenoid valve, wherein entering water electromagnetic valve connects reactor, reactor connects sampling solenoid valve, solenoid purge valve, discharge solenoid valve, wherein discharges solenoid valve and joins with gas flare, wastewater neutralizer respectively; The gas flare gas port that runs in is during wastewater neutralizer connects and solenoid valve, waste water solenoid valve; The waste water solenoid valve is established freeing port; Liquid level sensor links to each other with water receiver.The beneficial effects of the utility model are, can automatically accurately measure ammonia dissociation rate, have to reduce and pollute, and meet Green heat treatment specification and requirement and cheap, can be widely used in the ammonia dissociation rate of nitriding furnace and the measurement of nitriding nitrogen gesture.
Description of drawings
Accompanying drawing is a structured flowchart of the present utility model.
1 is computing machine or programmable logic controller (PLC) (PLC) among the figure; The 2nd, water receiver; The 3rd, reactor; The 4th, gas flare; The 5th, wastewater neutralizer; The 6th, liquid level sensor; A1 is a tap water; A2 is sampled furnace gas; A3 is a cleaning fluid; A4 is a neutralizer; B1 is an exhausr port; B2 is a freeing port; C1 is the output of ammonia dissociation rate electric signal; F1 is that sampling solenoid valve, F2 are that discharge solenoid valve, F3 are that entering water electromagnetic valve, F4 are that moisturizing solenoid valve, F5 are during solenoid purge valve, F6 are and solenoid valve, F7 are the waste water solenoid valves.
Embodiment
The contrast accompanying drawing, by computing machine or programmable logic controller (PLC) 1 (model C QM2AH-20CDR), water receiver 2, reactor 3, gas flare 4, wastewater neutralizer 5, liquid level sensor 6, sampling solenoid valve F1, discharge solenoid valve F2, entering water electromagnetic valve F3, moisturizing solenoid valve F4, solenoid purge valve F5, in solenoid valve F6, waste water solenoid valve F7 (model AC220V, φ 8 are connected SUS pipe VDW21-4G-3-01-G) formation, the wherein output terminal of the input termination liquid level sensor 6 of computing machine or programmable logic controller (PLC) 1; The output termination ammonia dissociation rate electric signal output C1 of computing machine or programmable logic controller (PLC) 1, water receiver 2 taps into water solenoid valve F3, moisturizing solenoid valve F4, wherein entering water electromagnetic valve F3 connects reactor 3, reactor 3 meets sampling solenoid valve F1, solenoid purge valve F5, discharges solenoid valve F2, wherein discharges solenoid valve F2 and joins with gas flare 4, wastewater neutralizer 5 respectively; Gas flare 4 is provided with exhausr port B1, during wastewater neutralizer 5 connects and solenoid valve F6, waste water solenoid valve F7; Waste water solenoid valve F7 establishes freeing port B2; Liquid level sensor 6 links to each other with water receiver 2.Waste gas of discharging and waste water are discharged after burning and neutralization, have and reduce the effect of polluting, electrical heating burner 4 is equipped with at the exhaust of reactor 3, freeing port rear portion, measure the volume of the water that participates in reaction by measuring SEA LEVEL VARIATION, measure ammonia dissociation rate by the volume of measuring the water that participates in reaction, control and computation process are finished by computing machine or programmable logic controller (PLC) 1.Electrical heating burner 4 is equipped with at exhaust, freeing port rear portion at reactor 3, and the gas of discharge enters atmosphere (burner 4 also can adopt the inflammable gas igniting) after the heater via burning in burner 4.Neutralizer 5 is equipped with at exhaust, freeing port rear portion at reactor 3, the pollution-free discharge after neutralizing of the liquid that contains ammonia of discharge.Cleaning fluid in neutralizer 5 with waste water in and after, pollution-free discharge.Whole solenoid valve F
0~ F
7Automatically control by adjustable sequential and cycle by computing machine or programmable logic controller (PLC) 1.
The course of work is as follows: open sampling solenoid valve F1, discharge solenoid valve F2, furnace gas is put into reactor 3, after about 2 ~ 3 minutes, all be full of tested gas in the reactor 3; After the waste gas of discharging burns in gas flare 4, pollution-free discharge; Read the measured initial water level of liquid level sensor 6; Close sampling solenoid valve F1, discharge solenoid valve F2, open entering water electromagnetic valve F3, the water in the water receiver 2 is put into reactor 3, water will with NH
3Reaction, the whole NH in reactor 3
3Reacted (being about 1 minute); Read the measured end of a period water level of liquid level sensor 6, calculate NH
3Resolution ratio also shows; After the waste water of discharging neutralizes in wastewater neutralizer 5, pollution-free discharge; Close entering water electromagnetic valve F3, need to judge whether supplementing water,, open moisturizing solenoid valve F4 moisturizing, close moisturizing solenoid valve F4 when water level arrives certain position as needs; According to the discharge rate of waste water, feed a certain amount of neutralizer with solenoid valve F6 in the control; Open sampling solenoid valve F1, discharge solenoid valve F2 and carry out next measurement.(volume is V in a known volume
1) feed closing containers behind the tested furnace gas certain hour in the airtight container, water flowing, the ammonia in the tested gas will be all be separated absorption by water-soluble, and therefore water with the ammonia equal parts will be arranged, and (volume is V
0) replenish in the container ammonia dissociation rate=V
0/ V
1Therefore as long as measure the volume (V of the water that participates in reaction
0) just can calculate ammonia dissociation rate; The container (inside diameter of vessel is D) of one equal diameter is set and is furnished with liquid level sensor 6 and link to each other, measure the height change H=H of water level by liquid level sensor 6 with water receiver 2
2-H
1(H
2Be end of a period water level, H
1Be initial water level), just can calculate V
0(=Δ H* π * D
2/ 4), thus calculate ammonia dissociation rate.The electric signal of liquid level sensor 6 outputs sends computing machine or programmable logic controller (PLC) 1 to, calculates ammonia dissociation rate and demonstration by computing machine or programmable logic controller (PLC) 1.The waste gas that measurement mechanism is discharged will be harmless after burning through electrically heated burner 4, will be harmless behind the waste water process neutralizer 5 that measurement mechanism is discharged.The all operations process is finished automatically by computing machine or programmable logic controller (PLC) 1, and is with low cost.
Claims (1)
1, the ammonia dissociation rate of thermal treatment nitriding furnace and nitriding nitrogen gesture measurement mechanism is characterized in that the output terminal of the input termination liquid level sensor (6) of computing machine or programmable logic controller (PLC) (1); The output termination ammonia dissociation rate electric signal output (C1) of computing machine or programmable logic controller (PLC) (1), water receiver (2) taps into water solenoid valve (F3), moisturizing solenoid valve (F4), wherein entering water electromagnetic valve (F3) connects reactor (3), reactor (3) connects sampling solenoid valve (F1), solenoid purge valve (F5), discharges solenoid valve (F2), wherein discharges solenoid valve (F2) and joins with gas flare (4), wastewater neutralizer (5) respectively; Gas flare (4) is provided with exhausr port (B1), during wastewater neutralizer (5) connects and solenoid valve (F6), waste water solenoid valve (F7); Waste water solenoid valve (F7) is established freeing port (B2); Liquid level sensor (6) links to each other with water receiver (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026322 CN2699302Y (en) | 2004-04-16 | 2004-04-16 | Ammonia decomposition rate and nitriding nitrogen potential measuring device of heat treatment nitriding furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420026322 CN2699302Y (en) | 2004-04-16 | 2004-04-16 | Ammonia decomposition rate and nitriding nitrogen potential measuring device of heat treatment nitriding furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2699302Y true CN2699302Y (en) | 2005-05-11 |
Family
ID=34771200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420026322 Expired - Fee Related CN2699302Y (en) | 2004-04-16 | 2004-04-16 | Ammonia decomposition rate and nitriding nitrogen potential measuring device of heat treatment nitriding furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2699302Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314797A (en) * | 2017-08-07 | 2017-11-03 | 重庆科技学院 | A kind of capillary water apparatus for automatically measuring |
| CN108169277A (en) * | 2017-12-25 | 2018-06-15 | 中国航发动力股份有限公司 | A kind of calibration equipment and its method of calibration of ammonia gas in nitridation furnace resolution ratio |
| CN113376055A (en) * | 2021-06-08 | 2021-09-10 | 青岛丰东热处理有限公司 | Nitrogen potential calculation method and system |
-
2004
- 2004-04-16 CN CN 200420026322 patent/CN2699302Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314797A (en) * | 2017-08-07 | 2017-11-03 | 重庆科技学院 | A kind of capillary water apparatus for automatically measuring |
| CN108169277A (en) * | 2017-12-25 | 2018-06-15 | 中国航发动力股份有限公司 | A kind of calibration equipment and its method of calibration of ammonia gas in nitridation furnace resolution ratio |
| CN113376055A (en) * | 2021-06-08 | 2021-09-10 | 青岛丰东热处理有限公司 | Nitrogen potential calculation method and system |
| CN113376055B (en) * | 2021-06-08 | 2023-03-03 | 青岛丰东热处理有限公司 | Nitrogen potential calculation method and system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU FENGDONG HEATING TECHNOLOY CO., LTD.; PATE Free format text: FORMER NAME OR ADDRESS: YANCHENG FENGDONG HEAT TREATMENT CO., LTD.; PATENTEE |
|
| CP03 | Change of name, title or address |
Address after: No. 5, Feida East Road, Dafeng City, Jiangsu Province, China: 224100 Co-patentee after: Qian Chujun Patentee after: Jiangsu Feng Dong thermal technology Limited by Share Ltd Co-patentee after: Zhang Zhipeng Address before: No. 2, Feida West Road, Dafeng City, Jiangsu Province, China: 224100 Co-patentee before: Qian Chujun Patentee before: Yancheng Feng Dong heat treatment Co., Ltd. Co-patentee before: Zhang Zhipeng |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090522 Address after: No. 5, Feida East Road, Dafeng City, Jiangsu Province, China: 224100 Patentee after: Jiangsu Fengdong Thermal Technology Co., Ltd. Address before: No. 5, Feida East Road, Dafeng City, Jiangsu Province, China: 224100 Co-patentee before: Qian Chujun Patentee before: Jiangsu Feng Dong thermal technology Limited by Share Ltd Co-patentee before: Zhang Zhipeng |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Nanxiang 224100 West Dafeng Economic Development Zone No. 333 Patentee after: Jiangsu Fengdong Thermal Technology Co., Ltd. Address before: 224100, No. 5, Feida East Road, Dafeng City, Jiangsu Province Patentee before: Jiangsu Fengdong Thermal Technology Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050511 Termination date: 20130416 |