CN104107646A - Ammonia water preparation device - Google Patents
Ammonia water preparation device Download PDFInfo
- Publication number
- CN104107646A CN104107646A CN201310135876.2A CN201310135876A CN104107646A CN 104107646 A CN104107646 A CN 104107646A CN 201310135876 A CN201310135876 A CN 201310135876A CN 104107646 A CN104107646 A CN 104107646A
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- China
- Prior art keywords
- ammonia
- ammoniacal liquor
- coil pipe
- pipe
- container
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Abstract
The invention provides an ammonia water preparation device which includes a cylinder body and an ammonia-sucking apparatus. At least one set of coils and a cooling unit are disposed in the cylinder body. The coils are filled with ammonia water. The ammonia-sucking apparatus is provided with an ammonia-container. An ammonia gas inlet pipe and a water inlet pipe are disposed above the ammonia-container. An ammonia water outlet is arranged below the ammonia-container and is connected to the coils. The cooling unit includes a spray pipe which is disposed over the coils in the cylinder body. An ammonia water outlet pipe is connected to the bottom of the coils. A water outlet is disposed under the cylinder body. By means of venturi (tube) principle, ammonia gas is mixed with water to obtain ammonia water so that energy sources are saved by employing energy in the device itself. Ammonia water is in turbulent status in the coils so that concentration of the ammonia water is uniform, thereby being beneficial to heat transfer. By means of the spray-type cooling method, a liquid film is generated outside the coils so that heat transfer efficiency is high and usage amount of cooling water is saved. The coil structure is simple in structure, is convenient to process, is low in cost, is good in heat transfer effect and is safe and reliable.
Description
Technical field
The present invention relates to a kind of ammoniacal liquor preparation facilities, belong to power plant's denitration technology field.
Background technology
In industrial production, often need to prepare a large amount of ammoniacal liquor, and ammonia to discharge a large amount of heat in water-soluble process.If do not take appropriate cooling to process, will cause ammoniacal liquor system temperature to raise, but after ammonia temperature surpasses 60 ℃, ammonia is easy to volatilization, has strengthened the preparation difficulty of ammoniacal liquor.Especially when compounding high concentration ammoniacal liquor, concentration is higher, and ammonia more easily volatilizees, and preparation difficulty is larger.Therefore, in joining ammonia process, need ammoniacal liquor to carry out circulating cooling.By the temperature of cooling reduction ammoniacal liquor system on the one hand; Be to strengthen circulation to guarantee mixing of ammoniacal liquor on the other hand, accelerate preparation speed.
The preparation of ammoniacal liquor at present generally all adopts liquefied ammonia to prepare, and now uses the device of preparing ammonia water with liquid ammonia substantially all to exist danger when operation, if misoperation very easily exists security incident hidden danger.And the ammonia concn of preparing changes greatly, is difficult for controlling its concentration, is prone to the even situation of density unevenness, and after impact, workshop section produces.In addition, existing ammoniacal liquor preparation facilities is even to the inhomogeneous cooling of ammoniacal liquor when preparation, cooling velocity and poor effect, easily form the volatilization of a large amount of ammonias, cause the loss of a large amount of ammonias, cause the waste of resource, a large amount of ammonia emissions can cause environmental pollution in air simultaneously, affects people's health.
Summary of the invention
The problem to be solved in the present invention be to provide a kind of ammonia concn evenly, good cooling results, the saving energy, safe and reliable ammoniacal liquor preparation facilities.
For solving the problems of the technologies described above, the technical solution used in the present invention is a kind of ammoniacal liquor preparation facilities, comprises a cylindrical shell and ammonia absorber, is provided with at least one group of coil pipe and cooling unit in cylindrical shell, is connected with ammoniacal liquor in coil pipe; Described ammonia absorber is provided with ammonia container, and the top of ammonia container is provided with gas ammonia inlet tube and water inlet pipe, and described water inlet pipe mouth of pipe height is lower than gas ammonia inlet tube mouth of pipe height, and the below of ammonia container is provided with an ammoniacal liquor outlet, and described ammoniacal liquor outlet is connected with coil pipe; Described cooling unit is fountain cooling unit, comprises shower, and shower is positioned at the top of cylindrical shell inner coil pipe, and the below of cylindrical shell inner coil pipe connects an ammoniacal liquor outlet; Cylindrical shell below is also provided with delivery port.
Ammoniacal liquor flows from top to bottom in coil pipe, and the ammoniacal liquor in coil pipe, through the cooling water heat exchange with fountain, after ammoniacal liquor gathers, is discharged through the ammoniacal liquor outlet of cylindrical shell below; Cool water shower pipe is located at coil pipe top, and lower end of duct is provided with shower nozzle, and water sprays from shower nozzle, drenches and drops on coil pipe, takes away the heat of ammoniacal liquor; Coil pipe bottom can be provided with a cooling water collector, and the water droplet falling from coil surface drops on collector, then by cooling water conveyance conduit, delivers to cooling tower and lower the temperature.
Further, between described ammonia container and coil pipe, be connected an ammoniacal liquor distributor; Described coil pipe is 3 groups, be connected to side by side on ammoniacal liquor distributor, and coil pipe is vertically arranged stainless steel coiled pipe.Adopt coiled structure in parallel, ammoniacal liquor flows in ammoniacal liquor distributor, and ammoniacal liquor distributor is connected with coil pipe in parallel, and ammoniacal liquor cooling velocity is accelerated, cooling more even.
Further, the ammoniacal liquor exit of described ammonia container is provided with Pressure gauge, and the ammoniacal liquor outlet of coil pipe below is provided with thermometer; Described ammonia container is Rotation Shell Structure, and its top is cylindrical shell, and its underpart is cone shell structure, and the central axis angle of described gas ammonia inlet tube and ammonia container is 60 °; Described water inlet pipe is Venturi tube, and with ammonia container coaxial line.
Further, the top of described cylindrical shell connects a upper cover, and its below connects a low head, and ammoniacal liquor outlet is positioned at low head.Low head has the effect of cooling water collector.
Advantage and good effect that the present invention has are: in this device, ammonia absorber utilizes the potential energy of fluid self to change into kinetic energy, form negative pressure region, utilize venturi (pipe) principle to make ammonia automatically suck in ammonia absorber, and mix with water and generate ammoniacal liquor, utilize the energy itself carrying, saved the consumption of the energy; When coil pipe inner fluid exists the temperature difference, coil pipe can produce and to expand with heat and contract with cold with fluid, i.e. coil pipe retractable, and coil pipe just can be to the parts generation harmful effect being attached thereto like this; In this device, ammoniacal liquor is in turbulence state in coil pipe, and ammonia concn is even, and is beneficial to heat transmission; In this device, the type of cooling of ammoniacal liquor is the spray structure of cooling water, when cooling water is in spray process, water can produce liquid film outward at coil pipe, like this liquid film will with coil pipe in ammoniacal liquor heat exchange, be ammoniacal liquor cooling, improved heat transfer efficiency, liquid film and atmosphere heat exchange, also played certain cooling effect to ammoniacal liquor simultaneously, saved cooling water amount; This device adopts coiled structure, have advantages of simple in structure, be convenient to processing, cost is low, heat-transfer effect good, safe and reliable.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ammoniacal liquor preparation facilities of the specific embodiment of the invention.
In figure:
1. ammoniacal liquor exports 2. conical shell 3. cylindrical shells
4. gas ammonia inlet tube 5. water inlet pipe 6. ammonia absorbers
7. ammoniacal liquor distributor 8. upper cover 9. showers
10. coil pipe 11. low head 12. delivery ports
13. ammoniacal liquor outlets
The specific embodiment
The present invention is further elaborated below in conjunction with accompanying drawing, to enumerate following specific embodiment.
The present embodiment is a kind of ammoniacal liquor preparation facilities, as shown in Figure 1, comprises a cylindrical shell 3 and ammonia absorber 6, is provided with 3 groups of coil pipes that are connected in parallel 10 and a cooling unit in cylindrical shell 3, in coil pipe 10, is connected with ammoniacal liquor; Ammonia absorber 6 is provided with ammonia container, the top of ammonia container is provided with gas ammonia inlet tube 4 and water inlet pipe 5, and in ammonia container, water inlet pipe 5 mouth of pipe height are lower than gas ammonia inlet tube 4 mouth of pipe height, the below of ammonia container is provided with an ammoniacal liquor outlet 1, and ammoniacal liquor outlet 1 is connected with dish 10; Between ammonia container and coil pipe, be connected 7,3 groups of coil pipes of an ammoniacal liquor distributor and be connected to side by side on ammoniacal liquor distributor 7, and coil pipe 10 is vertically arranged stainless steel coiled pipe; Cooling unit is fountain cooling unit, comprises shower 9, and shower 9 is positioned at the top of cylindrical shell inner coil pipe 10, and the below of cylindrical shell inner coil pipe 10 connects an ammoniacal liquor outlet 13; The top of cylindrical shell connects a upper cover 8, and its below connects a low head 11, and ammoniacal liquor outlet 13 is positioned at low head 11, and low head 11 is provided with delivery port 12.
In the present embodiment, the ammoniacal liquor of ammonia container exports 1 place and is provided with Pressure gauge, and the ammoniacal liquor outlet 13 of coil pipe 10 belows is provided with thermometer; Ammonia container is Rotation Shell Structure, and its top is cylindrical shell, and its underpart is cone shell structure, and gas ammonia inlet tube 4 is 60 ° with the central axis angle of ammonia container; Water inlet pipe 5 is Venturi tube, and with ammonia container coaxial line.
In the present embodiment, the material at contact ammoniacal liquor position is 304 stainless steels, guarantees the low temperature resistant applying working condition of material; Ammonia absorber outlet is provided with Pressure gauge, detects the pressure of synthetic rear ammoniacal liquor; Ammoniacal liquor outlet place is provided with thermometer, indication scene temperature; Low head coolant outlet place is provided with thermometer, indication scene temperature; Bottom is provided with leg formula bearing, is used for supporting the weight of integral device.
In the present embodiment, water inlet pipe 5 is connected with the upper end cover of ammonia absorber by water inlet flange; Conical shell 2 ends on ammonia absorber, ammoniacal liquor exports 1 place and is connected with ammoniacal liquor outlet(discharge) flange; Ammoniacal liquor distributor 7 is connected with ammoniacal liquor outlet(discharge) flange.
Operation principle: as shown in Figure 1, ammoniacal liquor preparation facilities, its top is ammonia absorber, gas ammonia inlet tube and water inlet are connected with ammonia container, and water is sprayed at a high speed in ammonia container, utilize the potential energy of water self to change into kinetic energy, form negative pressure region, make gas ammonia automatically suck in container and mix with water, mixed ammoniacal liquor, by ammoniacal liquor distributor, enters in ammoniacal liquor coil pipe; Meanwhile, the cool water shower pipe that is positioned at coil pipe top sprays cooling water to coil pipe, and the ammoniacal liquor in coil pipe is lowered the temperature through heat exchange, after cylinder body bottom gathers, by ammoniacal liquor outlet, discharges cylindrical shell, enters subsequent processing; The water droplet falling from coil surface drops on collector (low head), then by cooling water conveyance conduit, delivers to cooling tower and lower the temperature.
Above embodiments of the invention are had been described in detail, but described content is only preferred embodiment of the present invention, can not be considered to for limiting practical range of the present invention.All equalization variations of doing according to the present patent application scope and improvement etc., within all should still belonging to patent covering scope of the present invention.
Claims (7)
1. an ammoniacal liquor preparation facilities, comprises a cylindrical shell, is provided with at least one group of coil pipe and cooling unit in cylindrical shell, is connected with ammoniacal liquor in coil pipe; It is characterized in that: also comprise an ammonia absorber, described ammonia absorber is provided with ammonia container, the top of ammonia container is provided with gas ammonia inlet tube and water inlet pipe, described water inlet pipe mouth of pipe height is lower than gas ammonia inlet tube mouth of pipe height, the below of ammonia container is provided with an ammoniacal liquor outlet, and described ammoniacal liquor outlet is connected with coil pipe; Described cooling unit is fountain cooling unit, comprises shower, and shower is positioned at the top of cylindrical shell inner coil pipe, and the below of cylindrical shell inner coil pipe connects an ammoniacal liquor outlet; Cylindrical shell below is also provided with delivery port.
2. ammoniacal liquor preparation facilities according to claim 1, is characterized in that: between described ammonia container and coil pipe, be connected an ammoniacal liquor distributor.
3. ammoniacal liquor preparation facilities according to claim 2, is characterized in that: described coil pipe is 3 groups, be connected to side by side on ammoniacal liquor distributor, and coil pipe is vertically arranged stainless steel coiled pipe.
4. ammoniacal liquor preparation facilities according to claim 1 and 2, is characterized in that: the ammoniacal liquor exit of described ammonia container is provided with Pressure gauge, and the ammoniacal liquor outlet of coil pipe below is provided with thermometer.
5. ammoniacal liquor preparation facilities according to claim 4, is characterized in that: described ammonia container is Rotation Shell Structure, and its top is cylindrical shell, and its underpart is cone shell structure, and the central axis angle of described gas ammonia inlet tube and ammonia container is 60 °.
6. ammoniacal liquor preparation facilities according to claim 5, is characterized in that: described water inlet pipe is Venturi tube, and with ammonia container coaxial line.
7. ammoniacal liquor preparation facilities according to claim 1, is characterized in that: the top of described cylindrical shell connects a upper cover, and its below connects a low head, and ammoniacal liquor outlet is positioned at low head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310135876.2A CN104107646A (en) | 2013-04-18 | 2013-04-18 | Ammonia water preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310135876.2A CN104107646A (en) | 2013-04-18 | 2013-04-18 | Ammonia water preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104107646A true CN104107646A (en) | 2014-10-22 |
Family
ID=51704752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310135876.2A Pending CN104107646A (en) | 2013-04-18 | 2013-04-18 | Ammonia water preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104107646A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430239A (en) * | 2016-08-30 | 2017-02-22 | 兰州裕隆气体股份有限公司 | Harmless recycling device for waste ammonia |
| CN107601529A (en) * | 2017-10-31 | 2018-01-19 | 东方电气集团东方锅炉股份有限公司 | A kind of efficient liquefied ammonia of safety and environmental protection prepares the device of ammoniacal liquor |
-
2013
- 2013-04-18 CN CN201310135876.2A patent/CN104107646A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106430239A (en) * | 2016-08-30 | 2017-02-22 | 兰州裕隆气体股份有限公司 | Harmless recycling device for waste ammonia |
| CN106430239B (en) * | 2016-08-30 | 2018-04-03 | 兰州裕隆气体股份有限公司 | A kind of innoxious recycle device of useless ammonia |
| CN107601529A (en) * | 2017-10-31 | 2018-01-19 | 东方电气集团东方锅炉股份有限公司 | A kind of efficient liquefied ammonia of safety and environmental protection prepares the device of ammoniacal liquor |
| CN107601529B (en) * | 2017-10-31 | 2024-01-05 | 东方电气集团东方锅炉股份有限公司 | Device of high-efficient liquid ammonia preparation aqueous ammonia of safety environmental protection |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141022 |