CN208583157U - A kind of small ammonia water process units - Google Patents
A kind of small ammonia water process units Download PDFInfo
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- CN208583157U CN208583157U CN201820790059.9U CN201820790059U CN208583157U CN 208583157 U CN208583157 U CN 208583157U CN 201820790059 U CN201820790059 U CN 201820790059U CN 208583157 U CN208583157 U CN 208583157U
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- ammonia
- ammonium hydroxide
- absorption tower
- packing layer
- process units
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Abstract
The utility model proposes a kind of small ammonia water process units, the process units includes the absorption tower that lower part is connected with the ammonia emission end of external equipment；The absorption tower includes ammonium hydroxide cooling cycle channel；Cooler, packing layer and ammonia concn meter are equipped in ammonium hydroxide cooling cycle channel；After the ammonia self-absorption tower lower part of external equipment discharge enters, in the ammonium hydroxide that uphill process passes through packing layer and is dissolved in packing layer；When the ammonium hydroxide cooling cycle channel ammonia concn that ammonia concn meter measures reaches threshold value, ammonium hydroxide cooling cycle channel exports finished product ammonium hydroxide to External memory equipment；The utility model can recycle the rich ammonia tail gas of electronic grade ultrapure ammonia purification device and prepare ammonium hydroxide with this.
Description
Technical field
The utility model relates to technical field of chemical raw material production, especially a kind of small ammonia water process units.
Background technique
Electronic grade ultrapure ammonia is a kind of very important industrial foundation material, be widely used in semiconductor integrated circuit IC,
The industries such as liquid crystal display LCD, light emitting semiconductor device LED and solar battery PV.In recent years, with energy such as Global Oils
Source resource gradually decreases and environmental pollution, and influence of the greenhouse effects to weather, clean energy resource and section are greatly developed in countries in the world
Energy technology, pays close attention to low-carbon economy.Under this background, the solar battery in China and light emitting semiconductor device and related produce
Industry is grown rapidly, and electronic grade ultrapure ammonia market is boundless.In electronic grade ultrapure ammonia purification device production process, deposit
In partial tail gas (ammonia) emission problem；As can recycling and utilizing these tail gas, it will help environmental protection.
Summary of the invention
The utility model proposes a kind of small ammonia water process units, can recycle the rich ammonia tail of electronic grade ultrapure ammonia purification device
Gas simultaneously prepares ammonium hydroxide with this.
The utility model uses following technical scheme.
A kind of small ammonia water process units, the process units include that lower part is connected with the ammonia emission end of external equipment
Absorption tower；The absorption tower includes ammonium hydroxide cooling cycle channel；Cooler, packing layer are equipped in ammonium hydroxide cooling cycle channel
With ammonia concn meter；After the ammonia self-absorption tower lower part of external equipment discharge enters, pass through packing layer simultaneously in uphill process
It is dissolved in the ammonium hydroxide of packing layer；When the ammonium hydroxide cooling cycle channel ammonia concn that ammonia concn meter measures reaches threshold value,
Ammonium hydroxide cooling cycle channel exports finished product ammonium hydroxide to External memory equipment.
The ammonia emission end of the external equipment is the rich ammonia exhaust emissions end of electronic grade ultrapure ammonia purification device.
The absorption tower top is equipped with ammonia emission channel；The ammonium hydroxide not dissolved and absorbed by packing layer is through ammonia emission channel
It send to 25 meters or more high altitude discharges.
The ammonium hydroxide of packing layer flows into absorption tower tower reactor after absorbing ammonia, then by aqua ammonia pump pressurization and after cooler is cooling
It send to absorption tower tower top, then the packing layer as phegma on absorption tower exchanges with ammonia progress caloic and absorbs ammonia.
The absorption tower is equipped with liquidometer and water supply tank, and when liquidometer instruction is to minimum liquid level, ammonium hydroxide cooling cycle is logical
Road stops output ammonium hydroxide outward, and water supply tank is to absorption tower moisturizing until liquidometer instruction reaches peak.
Cold water is passed in the shell side of the cooler；The absorption tower tower body, cooler and ammonium hydroxide cooling cycle tube channel
Road is wrapped up with thermal insulation material, and the operating temperature on the absorption tower is not higher than 30 DEG C.
The absorption tower tower body is with the molding of frp lining PVC material；Packing layer is filled out equipped with 50 × 15 Pall ring of ￠ (PP)
Material, filler are supported by lower support plate.Tower top and tower reactor are respectively equipped with ammonium hydroxide cooling cycle channel cycle liquid import and export, circulation
Liquid, which enters tower top and evenly distributed down by distribution plate, flows to packing layer, with the ammonia and dirty circulation fluid that ensure to rise in packing layer
It comes into full contact with.
The ammonia concn measurement is calculated as the ammonium hydroxide gravitometer based on differential pressure transmitter, ammonia concn meter nationality by
The density of surveyed ammonium hydroxide is come the concentration for the ammonium hydroxide that converts.
The utility model can by partial tail gas (ammonia) remanufacture ammonium hydroxide export trade of electronic grade ultrapure ammonia purification device,
Mitigate the pollution to environment, is also beneficial to enterprise and increases income.
Detailed description of the invention
With reference to the accompanying drawings and detailed description to the further details of explanation of the utility model:
Attached drawing 1 is the schematic diagram of the utility model；
Attached drawing 2 is the schematic diagram on absorption tower；
In figure: the absorption tower 1-；2- ammonia concn meter；3- aqua ammonia pump；4- liquidometer；5- water supply tank；6- ammonia emission
Channel；7- External memory equipment；8- packing layer；9- distribution plate；10- cooler.
Specific embodiment
As shown in Figs. 1-2, a kind of small ammonia water process units, the process units include the ammonia of lower part and external equipment
The connected absorption tower 1 of discharge end；The absorption tower 1 includes ammonium hydroxide cooling cycle channel；The ammonium hydroxide cooling cycle is set in channel
There are cooler 10, packing layer 8 and ammonia concn meter 2；After 1 lower part of ammonia self-absorption tower of external equipment discharge enters,
Uphill process is by packing layer 8 and is dissolved in the ammonium hydroxide of packing layer 8；When the ammonium hydroxide cooling cycle that ammonia concn meter measures is logical
When road ammonia concn reaches threshold value, ammonium hydroxide cooling cycle channel exports finished product ammonium hydroxide to External memory equipment 7.
The ammonia emission end of the external equipment is the rich ammonia exhaust emissions end of electronic grade ultrapure ammonia purification device.
The absorption tower top is equipped with ammonia emission channel 6；Do not led to by the ammonium hydroxide that packing layer 8 dissolves and absorbs through ammonia emission
It send to 25 meters or more high altitude discharges in road 6.
The ammonium hydroxide of packing layer flows into absorption tower tower reactor after absorbing ammonia, then is pressurized by aqua ammonia pump 3 and cold through cooler 10
But it send afterwards to absorption tower tower top, then the packing layer as phegma on absorption tower carries out caloic with ammonia and exchanges simultaneously absorbing ammonia
Gas.
The absorption tower is equipped with liquidometer 4 and water supply tank 5, when liquidometer instruction is to minimum liquid level, ammonium hydroxide cooling cycle
Channel stops output ammonium hydroxide outward, and water supply tank is to absorption tower moisturizing until liquidometer instruction reaches peak.
Cold water is passed in the shell side of the cooler；The absorption tower tower body, cooler and ammonium hydroxide cooling cycle tube channel
Road is wrapped up with thermal insulation material, and the operating temperature on the absorption tower is not higher than 30 DEG C.
The absorption tower tower body is with the molding of frp lining PVC material；Packing layer is filled out equipped with 50 × 15 Pall ring of ￠ (PP)
Material, filler are supported by lower support plate.Tower top and tower reactor are respectively equipped with ammonium hydroxide cooling cycle channel cycle liquid import and export, circulation
Liquid, which enters tower top and evenly distributed down by distribution plate 9, flows to packing layer, with the ammonia and dirty circulation fluid that ensure to rise in filler
Layer comes into full contact with.
The ammonia concn meter 2 is the ammonium hydroxide gravitometer based on differential pressure transmitter, ammonia concn meter nationality
Converted the concentration of ammonium hydroxide by the density of surveyed ammonium hydroxide.
Embodiment:
According to the solubility (See Figure) of ammonia in water, under an atmospheric pressure (100kPa), when temperature 50 C,
The solubility of ammonia in water is 20%, i.e., when ammonia concn reaches 20%, ammonia will not be only absorbed by the water, and not be able to satisfy ammonia
The requirement of water dealer.Therefore the temperature that must try to reduce ammonium hydroxide improves the solubility of ammonia in water, to improve ammonium hydroxide
Concentration.From the graph as can be seen that under an atmospheric pressure (100kPa), if ammonia temperature is down to 30 DEG C, ammonia concn
It can be improved to 40% or more, fully meet the requirement of ammonium hydroxide dealer.
Ammonia concn meter nationality is converted the concentration of ammonium hydroxide by the density according to the form below of surveyed ammonium hydroxide；
There is following process in concrete operations:
(1) when densitometer shows that ammonia concn reaches 20~25%, the valve led on ammonia water tank pipeline, ammonium hydroxide are opened
It is stored into ammonia water tank.
(2) when absorbing tower liquid-level meter is indicated to minimum liquid level, the valve for leading to ammonia water tank is closed, high water tank is opened and goes out
Mouth valve is closed after liquidometer to peak to absorption tower Jia Shui, and ammonium hydroxide is absorbed again, is constantly recycled with this.
(3) the above are an interruption process of ammonium hydroxide production, each interruption production can produce 0.2 cubic metre of qualified ammonium hydroxide,
Depending on each interruption production time is by exhaust flow.
Claims (8)
1. a kind of small ammonia water process units, it is characterised in that: the process units includes the ammonia row of lower part and external equipment
Put the connected absorption tower in end；The absorption tower includes ammonium hydroxide cooling cycle channel；It is equipped in ammonium hydroxide cooling cycle channel cold
But device, packing layer and ammonia concn meter；After the ammonia self-absorption tower lower part of external equipment discharge enters, passed through in uphill process
It crosses packing layer and is dissolved in the ammonium hydroxide of packing layer；When the ammonium hydroxide cooling cycle channel ammonia concn that ammonia concn meter measures reaches
When to threshold value, ammonium hydroxide cooling cycle channel exports finished product ammonium hydroxide to External memory equipment.
2. a kind of small ammonia water process units according to claim 1, it is characterised in that: the ammonia of the external equipment is arranged
Put the rich ammonia exhaust emissions end that end is electronic grade ultrapure ammonia purification device.
3. a kind of small ammonia water process units according to claim 1, it is characterised in that: the absorption tower top is equipped with ammonia
Gas discharge-channel；It is not sent through ammonia emission channel to 25 meters or more high altitude discharges by the ammonium hydroxide that packing layer dissolves and absorbs.
4. a kind of small ammonia water process units according to claim 1, it is characterised in that: the ammonium hydroxide of packing layer is in absorbing ammonia
Absorption tower tower reactor is flowed into after gas, then is pressurized by aqua ammonia pump and is sent after cooler is cooling to absorption tower tower top, then as reflux
Packing layer of the liquid on absorption tower exchanges with ammonia progress caloic and absorbs ammonia.
5. a kind of small ammonia water process units according to claim 1, it is characterised in that: the absorption tower is equipped with liquidometer
And water supply tank, when liquidometer instruction is to minimum liquid level, ammonium hydroxide cooling cycle channel stops output ammonium hydroxide outward, and water supply tank is to suction
Tower moisturizing is received until liquidometer instruction reaches peak.
6. a kind of small ammonia water process units according to claim 1, it is characterised in that: lead in the shell side of the cooler
With cold water；The absorption tower tower body, cooler and ammonium hydroxide cooling cycle communication conduits are wrapped up with thermal insulation material, the absorption tower
Operating temperature is not higher than 30 DEG C.
7. a kind of small ammonia water process units according to claim 1, it is characterised in that: the absorption tower tower body is with glass
The molding of steel lining PVC material；Packing layer is equipped with 50 × 15 Pall ring filler of ￠, and filler is supported by lower support plate；
Tower top and tower reactor are respectively equipped with ammonium hydroxide cooling cycle channel cycle liquid import and export, and it is equal by distribution plate that circulation fluid enters tower top
Packing layer is flowed under even distribution, to ensure that the ammonia risen comes into full contact with dirty circulation fluid in packing layer.
8. a kind of small ammonia water process units according to claim 1, it is characterised in that: the ammonia concn measurement is calculated as
Ammonium hydroxide gravitometer based on differential pressure transmitter, ammonia concn meter nationality are converted the dense of ammonium hydroxide by the density of surveyed ammonium hydroxide
Degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820790059.9U CN208583157U (en) | 2018-05-25 | 2018-05-25 | A kind of small ammonia water process units |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820790059.9U CN208583157U (en) | 2018-05-25 | 2018-05-25 | A kind of small ammonia water process units |
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| CN208583157U true CN208583157U (en) | 2019-03-08 |
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| CN201820790059.9U Active CN208583157U (en) | 2018-05-25 | 2018-05-25 | A kind of small ammonia water process units |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193270A (en) * | 2019-05-31 | 2019-09-03 | 成都华融化工有限公司 | A kind of polymerizing vinyl chloride tail gas ammonia removal device and method |
| CN111841260A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Ammonia water recovery intelligent control system and method for ammonia water absorption tower |
| CN111841256A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | System and method for controlling temperature of ammonia water in ammonia water absorption tower |
| CN111841258A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Water supplementing system and method for ammonia water absorption tower |
| CN111841257A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Comprehensive control system and method for ammonia water absorption tower |
| CN111841259A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Control system and method for cyclic absorption process of ammonia water absorption tower |
| CN111957175A (en) * | 2020-08-18 | 2020-11-20 | 中冶北方（大连）工程技术有限公司 | Ammonia water absorption tower control analysis system and method |
-
2018
- 2018-05-25 CN CN201820790059.9U patent/CN208583157U/en active Active
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110193270A (en) * | 2019-05-31 | 2019-09-03 | 成都华融化工有限公司 | A kind of polymerizing vinyl chloride tail gas ammonia removal device and method |
| CN111841260A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Ammonia water recovery intelligent control system and method for ammonia water absorption tower |
| CN111841256A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | System and method for controlling temperature of ammonia water in ammonia water absorption tower |
| CN111841258A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Water supplementing system and method for ammonia water absorption tower |
| CN111841257A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Comprehensive control system and method for ammonia water absorption tower |
| CN111841259A (en) * | 2020-08-18 | 2020-10-30 | 中冶北方（大连）工程技术有限公司 | Control system and method for cyclic absorption process of ammonia water absorption tower |
| CN111957175A (en) * | 2020-08-18 | 2020-11-20 | 中冶北方（大连）工程技术有限公司 | Ammonia water absorption tower control analysis system and method |
| CN111841260B (en) * | 2020-08-18 | 2024-03-08 | 中冶北方（大连）工程技术有限公司 | Intelligent control system and method for ammonia water recovery of ammonia water absorption tower |
| CN111841259B (en) * | 2020-08-18 | 2024-03-08 | 中冶北方（大连）工程技术有限公司 | Control system and method for circulating absorption process of ammonia absorption tower |
| CN111841256B (en) * | 2020-08-18 | 2024-03-08 | 中冶北方（大连）工程技术有限公司 | Control system and method for ammonia water temperature in ammonia water absorption tower |
| CN111841258B (en) * | 2020-08-18 | 2024-03-08 | 中冶北方（大连）工程技术有限公司 | Water supplementing system and method of ammonia water absorption tower |
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Address after: 350109 Yu Yu 86, Yutian village, Nan Yu Town, Minhou County, Fuzhou, Fujian Patentee after: Fujian jiuce Gas Co., Ltd Address before: 350109 Yu Yu 86, Yutian village, Nan Yu Town, Minhou County, Fuzhou, Fujian Patentee before: FUJIAN JIUCE GAS GROUP Co.,Ltd. |