CN207002278U - A kind of efficient preparation facilities of nitric oxide - Google Patents
A kind of efficient preparation facilities of nitric oxide Download PDFInfo
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- CN207002278U CN207002278U CN201720019716.5U CN201720019716U CN207002278U CN 207002278 U CN207002278 U CN 207002278U CN 201720019716 U CN201720019716 U CN 201720019716U CN 207002278 U CN207002278 U CN 207002278U
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- gas
- nitric oxide
- air inlet
- blending bin
- liquid
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Abstract
The utility model discloses a kind of efficient preparation facilities of nitric oxide, liquid ammonia storage tank liquid outlet pipeline connects efficient gasifying device inlet, efficient gasifying device gas outlet pipeline connection first gas filtering air inlet, first gas filter outlet mouth pipeline connect the second blending bin air inlet；First blending bin liquid outlet pipeline connects heater inlet, heater air outlet pipeline connects second gas filtering air inlet, second gas filter outlet mouth pipeline connects the second blending bin air inlet, second blending bin gas outlet pipeline connection converter for ammonia oxidation air inlet, converter for ammonia oxidation gas outlet pipeline connection water cooler air inlet, water cooler outlet conduit connects gas-liquid separator, and gas-liquid separator top is provided with escape pipe, and gas-liquid separator lower end is provided with drain pipe.The utility model is simple in construction, easy to use, and nitric oxide gasification efficiency significantly improves, and improves nitric oxide production transformation efficiency.
Description
Technical field
The utility model belongs to gas production facility technical field, more particularly to a kind of efficient preparation facilities of nitric oxide.
Background technology
At present, the industry such as chemical industry, some pilot systems of field of Environment Protection and medicine extensive use obtains nitric oxide,
As a kind of important industrial chemicals.In the prior art, nitric oxide prepares source and mainly had：Laboratory passes through metallic copper and dilute
Prepared by nitric acid reaction, but preparation amount is less, it is difficult to reaches the needs of practical application；During traditional ammoxidation reaction nitric acid
Intermediate product, such as the converter for ammonia oxidation in Fig. 1, because production purpose not prepares nitric oxide, so as to nitric oxide production preparation
Amount and purity are also difficult to reach requirement.Solubility of the nitric oxide in water is smaller, and is not reacted with water.Normal temperature is next
Nitrogen oxide is easy to be oxidized to nitrogen dioxide, chemical industry, field of Environment Protection some experimental systems and medicine and other fields, it is necessary to
To nitric oxide gas, nitric oxide gas is industrially prepared now and is mostly used for liquefied ammonia furnace apparatus, but this equipment exists
Low there is efficiency during liquid ammonia gasification, using energy source is more, inconvenient problem with use, and nitric oxide production preparation
It is inefficient.
Therefore, it is above-mentioned above-mentioned technological deficiency to be in the prior art present, it is those skilled in the art's technology urgently to be resolved hurrily
Problem.
Utility model content
The purpose of this utility model is to provide a kind of nitric oxide efficient preparation facilities, it is intended to which solution is deposited in the prior art
Nitric oxide preparation efficiency it is not high, and in nitric oxide preparation process, the problem of gasification efficiency of liquefied ammonia is low.
What the utility model was realized in：
A kind of efficient preparation facilities of nitric oxide, including liquid ammonia storage tank, efficient gasifying device, first gas filter,
Two pneumatic filters, the first blending bin, the second blending bin, heater, converter for ammonia oxidation, water cooler and gas-liquid separator, it is described
Liquid ammonia storage tank liquid outlet pipeline connects efficient gasifying device inlet, and efficient gasifying device gas outlet pipeline connects the first gas
Body filtering air inlet, the first gas filter outlet mouth pipeline connect the second blending bin air inlet；First mixing
Case liquid outlet pipeline connects heater inlet, and the heater air outlet pipeline connects second gas filtering air inlet, institute
State second gas filter outlet mouth pipeline and connect the second blending bin air inlet, the second blending bin gas outlet pipeline connects
Connect converter for ammonia oxidation air inlet, converter for ammonia oxidation gas outlet pipeline connection water cooler air inlet, the water cooler outlet
Road connects gas-liquid separator, and the gas-liquid separator top is provided with escape pipe, and the gas-liquid separator lower end is provided with drain pipe.
Preferably, the efficient gasifying device includes force (forcing) pump, fluid injector, gasification case and electric heater, the pressurization
Pump inlet pipeline connects the liquid ammonia storage tank, and the force (forcing) pump liquid outlet connecting pipe stretches into gasification case and pipe end is set
Fluid injector is put, electric heater is provided with the gasification case.
Preferably, the first mixing box outer wall is provided with oxygen intake pipe, nitrogen inlet duct and water vapour air inlet pipe.
Preferably, the water cooler includes recirculating cooling water system, cooling tube and cooler bin, is provided with the cooler bin
The cooling tube of snakelike setting, the cooling tube both ends connect recirculating cooling water system.
Preferably, the gas-liquid separator includes separator box, screen pack and conical bottom, transversal in the separator box to be provided with
Filter screen, the screen pack set location are higher than the import of the separator box, and the separator box lower end is provided with conical bottom, the taper
Bottom bottom is provided with drain pipe.
Preferably, in addition to lye tank, the drain pipe of the separator box lower end connect the lye tank.
Preferably, mixing stirring device is provided with second blending bin, the motor of the mixing stirring device is set
In top outside second blending bin, the stirrer paddle of the mixing stirring device in second blending bin and with it is described
Motor is connected.
The beneficial effects of the utility model are：By being improved to existing nitric acid Preparation equipment, and optimize an oxidation
The preparation technology of nitrogen, so as to improve nitric oxide production preparation efficiency；And the equipment in nitric oxide preparation process is optimized,
The gasification efficiency of liquefied ammonia is improved, further increases nitric oxide production preparation efficiency.The utility model is simple in construction, user
Just, nitric oxide gasification efficiency significantly improves, and improves nitric oxide production transformation efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the converter for ammonia oxidation used in the prior art；
Fig. 2 is structural representation of the present utility model；
Fig. 3 is efficient gasifying device structural representation of the present utility model；
Fig. 4 is the cross section structure diagram of the second blending bin of the present utility model；
Fig. 5 is the structural representation of water cooler of the present utility model；
In figure：1 liquid ammonia storage tank；2 efficient gasifying devices；21 force (forcing) pumps；22 fluid injectors；23 gasification casees；24 electric heaters；
3 first gas filters；4 second gas filters；5 first blending bins；6 second blending bins；7 heaters；8 converter for ammonia oxidations；9 water
Cooler；91 recirculating cooling water systems；92 cooling tubes；93 cooler bins；10 gas-liquid separators；101 separator boxs；102 screen packs；
103 conical bottoms；11 oxygen intake pipes；12 nitrogen inlet ducts；13 water vapour air inlet pipe；14 lye tanks；15 mixing stirring devices.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only explaining
The utility model, it is not used to limit the utility model.In this embodiment, the conveying for liquid or gas is adopted
Conveying power is provided with the pump housing, improves for casing or tank body pressure and is completed using force (forcing) pump, the control for flow can adopt
Carried out with mass flowmenter, above-mentioned technical proposal belongs to adoptable technology in the prior art, is not describing and is entering in accompanying drawing
Row repeats.
Embodiment 1
Fig. 2 shows the efficient preparation facilities of a kind of nitric oxide of the present utility model, including liquid ammonia storage tank 1, high-efficiency gasification
Device 2, first gas filter 3, second gas filter 4, the first blending bin 5, the second blending bin 6, heater 7, ammoxidation
Stove 8, water cooler 9 and gas-liquid separator 10, the liquid outlet pipeline of liquid ammonia storage tank 1 connect the inlet of efficient gasifying device 2, will
Liquefied ammonia in liquid ammonia storage tank 1, which is pipelined in efficient gasifying device 2, to be gasified, the outlet of efficient gasifying device 2
The air inlet of mouthful pipeline connection first gas filter 3, ammonia after gasification have obtained removal of impurities and only by first gas filter 3
Change, the gas outlet pipeline connection air inlet of the second blending bin 6 of first gas filter 3, ammonia is transported to the second blending bin 6
Middle wait is mixed with oxygen, nitrogen and water vapour；First blending bin 5 is used to mix water vapour, oxygen and nitrogen, and described the
The liquid outlet pipeline of one blending bin 5 connects the inlet of heater 7, and the mixture in the first blending bin 5, which is entered in heater 7, to be obtained
A certain degree of heating, oxygen, nitrogen and water vapour is set to form the gaseous state of mixing, the gas outlet pipeline connection of heater 7
The air inlet of second gas filter 4, mixed state gas carry out filtering and impurity removing and purification by second gas filter 4, and described the
The gas outlet pipeline of two pneumatic filter 4 connects the air inlet of the second blending bin 6, by the mixed state of oxygen, nitrogen and water vapour
Material is transported in the second blending bin 6 and further mixed with ammonia.Mixed gaseous material enters further into ammonia oxygen
Change progress ammoxidation reaction in stove 8 and prepare nitric oxide, the gas outlet pipeline connection air inlet of converter for ammonia oxidation 8 of the second blending bin 6
Mouthful, the gas outlet pipeline connection air inlet of water cooler 9 of converter for ammonia oxidation 8, the gas-liquid mixture by ammoxidation process enters one
Step, which is transported in water cooler 9, carries out cooling separation exogenous nitric oxide and hydrone, the outlet conduit of water cooler 9 connection
Gas-liquid separator 10, further realize that gas-liquid is separated in gas-liquid separator 10, gaseous nitric oxide is upward, the gas
The top of liquid/gas separator 10 is provided with escape pipe, and nitric oxide is discharged from escape pipe to be collected and utilized, and liquid water body is downward, institute
State the lower end of gas-liquid separator 10 and be provided with drain pipe, alkaline water body is discharged from drain pipe, is further processed.
Embodiment 2
Further, as Fig. 3, the efficient gasifying device 2 include force (forcing) pump 21, fluid injector 22, gasification case 23 and
Electric heater 24, the inlet pipeline of force (forcing) pump 21 connect the liquid ammonia storage tank 1, and liquefied ammonia is entered in force (forcing) pump 21 and risen
Pressure is acted on, and improves pressure of the liquefied ammonia in exit, and the liquid outlet connecting pipe of force (forcing) pump 21 is stretched into gasification case 23 and managed
Road end set fluid injector 22, the gasification case 23 is interior to be provided with electric heater 24.The setting of fluid injector 22 can make liquefied ammonia
Present vaporific in discharge, disperseed liquefied ammonia, and setting electric heater 24 can enter to the liquefied ammonia of atomization the case 23 that gasifies in
Row heating and gasifying, so as to improve gasification efficiency, using energy source amount is reduced, improves operating efficiency.Specifically, ammonia is added
Heat is optimal to 80 DEG C, can realize being gasified totally for ammonia, and reduce the pressure of subsequent filter process.
Embodiment 3
Further, the outer wall of the first blending bin 5 enters provided with oxygen intake pipe 11, nitrogen inlet duct 12 and water vapour
Tracheae 13.First blending bin 5 is used for mixture of oxygen, nitrogen and water vapour, has heated water before the first blending bin 5 is entered
To 100 DEG C of water vapours formed above, and oxygen and nitrogen are also heated to more than 100 DEG C, can will not steam water in mixing
Vapour separates out water droplet, ensure that the efficiency of gas mixing.And oxygen, nitrogen and water vapour then mix according to certain ratio to first
Inputted in case 5, specific gas concentration ratio can not only ensure security, and can make after being mixed with ammonia towards most favourable
Carried out in the direction of nitric oxide generation.
Embodiment 4
Further, as Fig. 5, the water cooler 9 include recirculating cooling water system 91, cooling tube 92 and cooler bin
93, the interior cooling tube 92 for being provided with snakelike setting of the cooler bin 93, the both ends of cooling tube 92 connect recirculating cooling water system 91.
Gas-liquid mixture phase body after ammoxidation reaction is transported in water cooler 9, is run into cooling tube 92 and is cooled down, optimal is to make
Temperature is maintained at 40-60 DEG C in cooler bin 93, reaches preferable cooling effect, and nitric oxide gas and hydrone are separated.
External recirculating cooling water system 91 can be that water cooler 9 provides endlessly cooling water realization cooling.
Embodiment 5
Further, the gas-liquid separator 10 includes separator box 101, screen pack 102 and conical bottom 103, described point
Transversal from case 101 to be provided with screen pack 102, the set location of screen pack 102 is higher than the import of the separator box 101, described
The lower end of separator box 101 is provided with conical bottom 103, and the bottom of conical bottom 103 is provided with drain pipe.By the reactant of water cooler 9
It is further conveyed in gas-liquid separator 10, liquid enters in separator box 101 and enters further into conical bottom 103, and from
Drain pipe is discharged；Gaseous nitric oxide is then upward through screen pack 102, and is discharged from escape pipe, realizes gas-liquid separation.
Embodiment 6
Further, in addition to lye tank 14, the drain pipe of the lower end of separator box 101 connect the lye tank 14.
Produced due to having nitric acid in course of reaction, in water, cause water outlet to be used to neutralize water outlet, prevent into acidity, settable lye tank 14
Only acid solution pollutes.
Embodiment 7
Further, such as Fig. 4, second blending bin 6 is interior to be provided with mixing stirring device 15, the mixing stirring device
15 motor is located at the outer top of second blending bin 6, and the stirrer paddle of the mixing stirring device 15 is located at described the
It is connected in two blending bins 6 and with the motor.Mixing stirring device 15 is provided with the second blending bin 6 to incite somebody to action
Enter gaseous material and be stirred mixing, improve the mixed effect of each composition of liquid, prevent that liquefied ammonia concentration is locally too high.
Embodiment 8
The present embodiment is practical application this equipment production nitric oxide, and design parameter and step are as follows：
Liquefied ammonia is gasified from liquid ammonia storage tank 1 into efficient gasifying device 2, and reaches ammonia temperature in gasification
To 80 DEG C, it is 18Nm to control the flow velocity speed of ammonia by mass flowmenter3/ h, then make particle by first gas filter 3
Diameter is entered in the second blending bin 6 no more than 0.5 micron；Oxygen, nitrogen, water vapour are matched by a certain percentage with quantitative control
It is mixed into 141Nm3/ h, mixture temperature are 100 DEG C, and then heated device 7 is preheated to 220 DEG C, through the mistake of second gas filter 4
After filter, particle diameter is set in its gas to be not more than 0.5 micron, also into the second blending bin 6.Molar ratio of material is ammonia: oxygen:
Nitrogen: water vapour=1: 1.6: 0.5: 5.7, in the second blending bin 6, ammonia and oxygen, nitrogen, water vapour be sufficiently mixed to prevent
Only ammonia density is locally too high, and the mixed gas carries out oxidation reaction by bottom into converter for ammonia oxidation 8, reaction pressure 0.09MPa,
Reacted in four layers of online 845 DEG C of Φ 350mm platinum, palladium, rhodiums.After reaction gas carried out in water cooler 9 chilling for 40 DEG C extremely
Gas-liquid separator 10, nitric oxide product gas is obtained at the top of gas-liquid separator 10, bottom liquid enters alkali lye through drain pipe
Obtain neutralizing discharge in case 14.The product tolerance being prepared according to above-mentioned steps is 20.3kg/h, NO concentration in product gas
For 42.1 moles of %, the nitric oxide for having reached ideal prepares effect.
The beneficial effects of the utility model are：By being improved to existing nitric acid Preparation equipment, and optimize an oxidation
The preparation technology of nitrogen, so as to improve nitric oxide production preparation efficiency；And the equipment in nitric oxide preparation process is optimized,
The gasification efficiency of liquefied ammonia is improved, further increases nitric oxide production preparation efficiency.The utility model is simple in construction, user
Just, nitric oxide gasification efficiency significantly improves, and improves nitric oxide production transformation efficiency.
It is not new to this practicality although above-mentioned specific embodiment of the present utility model is described with reference to accompanying drawing
The limitation of type protection domain, one of ordinary skill in the art should be understood that on the basis of the technical solution of the utility model, ability
Field technique personnel would not require any inventive effort the various modifications that can be made or deformation still in protection of the present utility model
Within the scope of.
Claims (7)
- A kind of 1. efficient preparation facilities of nitric oxide, it is characterised in that：Including liquid ammonia storage tank, efficient gasifying device, first gas Filter, second gas filter, the first blending bin, the second blending bin, heater, converter for ammonia oxidation, water cooler and gas-liquid point From device, the liquid ammonia storage tank liquid outlet pipeline connects efficient gasifying device inlet, efficient gasifying device gas outlet pipeline First gas filtering air inlet is connected, the first gas filter outlet mouth pipeline connects the second blending bin air inlet；Institute The first blending bin liquid outlet pipeline connection heater inlet is stated, the heater air outlet pipeline connects second gas filter Air inlet, the second gas filter outlet mouth pipeline connect the second blending bin air inlet, and second blending bin goes out Gas port pipeline connects converter for ammonia oxidation air inlet, converter for ammonia oxidation gas outlet pipeline connection water cooler air inlet, the water cooling But device outlet conduit connection gas-liquid separator, the gas-liquid separator top are provided with escape pipe, and the gas-liquid separator lower end is set There is drain pipe.
- 2. the efficient preparation facilities of nitric oxide as claimed in claim 1, it is characterised in that：The efficient gasifying device includes adding Press pump, fluid injector, gasification case and electric heater, the force (forcing) pump inlet pipeline connect the liquid ammonia storage tank, the pressurization Pump liquid outlet connecting pipe is stretched into gasification case and pipe end sets fluid injector, and electric heater is provided with the gasification case.
- 3. the efficient preparation facilities of nitric oxide as claimed in claim 2, it is characterised in that：The first mixing box outer wall is provided with Oxygen intake pipe, nitrogen inlet duct and water vapour air inlet pipe.
- 4. the efficient preparation facilities of nitric oxide as claimed in claim 3, it is characterised in that：It is cold that the water cooler includes circulation But water system, cooling tube and cooler bin, the interior cooling tube for being provided with snakelike setting of the cooler bin, the cooling tube both ends connection follow Ring cooling water system.
- 5. the efficient preparation facilities of nitric oxide as claimed in claim 4, it is characterised in that：The gas-liquid separator includes separation Case, screen pack and conical bottom, transversal in the separator box to be provided with screen pack, the screen pack set location is higher than the separator box Import, the separator box lower end is provided with conical bottom, and the conical bottom bottom is provided with drain pipe.
- 6. the efficient preparation facilities of nitric oxide as claimed in claim 5, it is characterised in that：Also include lye tank, the separation The drain pipe of case lower end connects the lye tank.
- 7. the efficient preparation facilities of nitric oxide as any one of claim 1 to 6, it is characterised in that：Described second is mixed Mixing stirring device is provided with mould assembling, the motor of the mixing stirring device is located at the outer top of second blending bin, institute The stirrer paddle of mixing stirring device is stated in second blending bin and is connected with the motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019716.5U CN207002278U (en) | 2017-01-09 | 2017-01-09 | A kind of efficient preparation facilities of nitric oxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720019716.5U CN207002278U (en) | 2017-01-09 | 2017-01-09 | A kind of efficient preparation facilities of nitric oxide |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207002278U true CN207002278U (en) | 2018-02-13 |
Family
ID=61429214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720019716.5U Expired - Fee Related CN207002278U (en) | 2017-01-09 | 2017-01-09 | A kind of efficient preparation facilities of nitric oxide |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207002278U (en) |
-
2017
- 2017-01-09 CN CN201720019716.5U patent/CN207002278U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20210109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |