CN209934487U - Device for preparing ammonia water by using liquid ammonia - Google Patents
Device for preparing ammonia water by using liquid ammonia Download PDFInfo
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- CN209934487U CN209934487U CN201920354642.XU CN201920354642U CN209934487U CN 209934487 U CN209934487 U CN 209934487U CN 201920354642 U CN201920354642 U CN 201920354642U CN 209934487 U CN209934487 U CN 209934487U
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Abstract
The utility model discloses a device with liquid ammonia preparation aqueous ammonia, comprising a tower body, the top of tower body is provided with the gas outlet who is used for the tail gas exhaust tower body, the upper end of tower body is provided with the liquid inlet that is used for the desalted water to get into the tower body, the upper end of tower body is provided with the filler that is located liquid inlet below, the lower extreme of tower body is provided with the gas inlet that is used for ammonia synthesis system to purge to get into the tower body, the bottom of tower body is provided with the liquid outlet who is used for the aqueous ammonia exhaust tower body, the tower body is provided with and is located the liquid ammonia import that is used for the liquid ammonia to get into. The utility model has the advantages that: the device has the characteristics of low investment cost and high ammonia water yield, and achieves the purposes of energy conservation and environmental protection.
Description
Technical Field
The utility model relates to a chemical industry reaction unit, in particular to device with ammonia water preparation ammonia water.
Background
Ammonia is an important chemical raw material and can be used for producing nitric acid, fertilizers and explosives. In the production process of ammonia, the production of tail gas is inevitable. Enterprises need to treat tail gas of ammonia synthesis systems to meet environmental requirements.
The main treatment mode of the tail gas of the ammonia synthesis system is to recover and generate ammonia water by adopting an ammonia absorption tower. The ammonia content in the tail gas of the ammonia synthesis system is low, and the ammonia water yield of the ammonia absorption tower is low. At present, the market demand of ammonia water is rapidly increased and the demand of ammonia water is short. How to improve the yield of the ammonia water on the premise of lower investment cost is a difficult problem to be solved urgently by enterprises.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a device of ammonia water is prepared with liquid ammonia. The device has the characteristics of low investment cost and high ammonia water yield, and achieves the purposes of energy conservation and environmental protection.
The above technical purpose of the present invention can be achieved by the following technical solutions:
the utility model provides a device with liquid ammonia preparation aqueous ammonia, includes the tower body, the top of tower body is provided with the gas outlet who is used for tail gas exhaust tower body, the upper end of tower body is provided with the liquid inlet that is used for the desalted water to get into the tower body, the upper end of tower body is provided with the filler that is located liquid inlet below, the lower extreme of tower body is provided with the gas inlet that is used for ammonia synthesis system to relax gassing and gets into the tower body, the bottom of tower body is provided with the liquid outlet who is used for the aqueous ammonia exhaust tower body, the tower body is provided with and is located the liquid ammonia import that is used for the.
By adopting the technical scheme, if the liquid ammonia inlet is not arranged, the tower body can only be used for absorbing the purge gas of the ammonia synthesis system. And the ammonia content in the purge gas is low, resulting in a low ammonia yield. The tower body is provided with a liquid ammonia inlet, so that liquid ammonia is absorbed while exhausted gas of the ammonia synthesis system is absorbed, and the yield of ammonia water is increased on the premise of not increasing an additional tower body. Therefore, the device has the characteristics of low investment cost and high ammonia water yield, and achieves the purposes of energy conservation and environmental protection.
The utility model discloses further set up to: the lower extreme of tower body is provided with the coil pipe that is used for letting in the circulating water and gives the aqueous ammonia cooling, the water inlet of coil pipe is less than the delivery port of coil pipe.
By adopting the technical scheme, the gasified liquid ammonia and desalted water are in countercurrent contact reaction at the filler to absorb and generate heat in the process of producing ammonia water. And the ammonia water contacts with the coil pipe which is communicated with the circulating water, so that heat is transferred to the circulating water, and self heat exchange cooling is realized.
The utility model discloses further set up to: be provided with in the tower body with the house steward of liquid inlet intercommunication and with the branch pipe of house steward intercommunication, house steward and branch pipe are located the filler top, house steward and branch pipe all communicate there are many liquid separating pipes, every liquid separating pipe is connected with liquid separating dish, every be provided with many liquid dropping pipes in the liquid separating dish, many liquid dropping pipe evenly distributed is on the circumference that uses liquid separating pipe as the centre of a circle.
Through adopting above-mentioned technical scheme, the demineralized water gets into the house steward from liquid inlet in proper order, gets into the branch pipe from the house steward, gets into from house steward and branch pipe and divides the liquid pipe, gets into from dividing the liquid pipe and divides the liquid dish, gets into the liquid pipe from dividing the liquid dish to realize the effect of even branch liquid.
The utility model discloses further set up to: divide the liquid pipe to include flange joint's first section and half section down, be provided with the current-limiting orifice plate that is used for controlling to get into and divides liquid dish liquid flow between first section and the half section down, be provided with the through-hole on the current-limiting orifice plate.
By adopting the technical scheme, the liquid flow entering the liquid separating disc is controlled by utilizing the flow limiting pore plate.
The utility model discloses further set up to: the two flow-limiting pore plates are provided with positioning holes at the circle centers, the same positioning rod which is fixed with the two flow-limiting pore plates along the axial lead direction of the positioning holes penetrates through the two positioning holes, and when the two flow-limiting pore plates rotate around the positioning rod relatively, the through holes of the two flow-limiting pore plates are changed from an aligned state to a staggered state.
Through adopting above-mentioned technical scheme, under the general condition, people need realize the regulation to getting into the liquid flow of separating dish through the current-limiting orifice plate that changes the through-hole that has the aperture difference. At this time, it is necessary to prepare a restriction orifice plate having through holes with different diameters. And utilize the relative rotation between two restriction orifice plates to realize the regulation to two through-hole overlap region sizes to realize getting into the regulation of liquid flow of separating the dish, thereby need not to prepare the restriction orifice plate that has the through-hole of aperture difference, reduction in production cost.
The utility model discloses further set up to: each flow limiting pore plate is provided with a plurality of through holes, and the through holes are uniformly distributed on the circumference with the positioning holes as the circle centers.
Through adopting above-mentioned technical scheme, the current-limiting orifice plate is whole can receive the balanced effort of demineralized water, strengthens the stability of current-limiting orifice plate.
The utility model discloses further set up to: one end of the positioning rod is integrally connected with a positioning plate, one end, far away from the positioning plate, of the positioning rod penetrates through the positioning holes of the two flow-limiting pore plates and then is in threaded connection with a positioning nut, a gasket is arranged between the positioning nut and the adjacent flow-limiting pore plates, and the gasket is provided with a mounting hole for the positioning rod to penetrate through.
Through adopting above-mentioned technical scheme, utilize set nut and locating lever threaded connection to realize fixing two restriction orifice plates between set nut and locating plate. And the positioning nut and the positioning plate extrude the two flow limiting pore plates to fix the positions of the two flow limiting pore plates after relative rotation, so that the liquid flow entering the liquid separating disc is fixed.
The utility model discloses further set up to: the gasket is provided with the screens groove with the mounting hole intercommunication, set nut card goes into in the screens groove and with the inseparable butt of screens groove cell wall, set nut is hexagon nut, the gasket is provided with along the border of gasket towards deviating from the annular arch that the current-limiting orifice plate direction extends, the lag has been cup jointed to the one end that the locating lever is close to set nut, the lag includes the cap body and the cover body of body coupling, the cover body cup joints with the protruding interference of annular.
Through adopting above-mentioned technical scheme, utilize the cover body and the protruding interference of annular to cup joint to seal locating lever and set nut threaded connection's part and set nut in airtight region, avoid with the contact of demineralized water, thereby can delay locating lever and set nut corrosion, thereby can prolong two current-limiting orifice plates time that can the relative rotation. And the positioning nut is clamped into the clamping groove and is tightly abutted against the groove wall of the clamping groove, so that the gasket can be limited to rotate around the axis of the mounting hole. The gasket is extruded by the flow-limiting pore plate and the positioning nut, and the gasket can be limited to rotate around the axis of the mounting hole. When the sleeve body is sleeved with the annular bulge in an interference manner, a large interaction force exists between the sleeve body and the annular bulge. The rotation of the limiting gasket can be beneficial to the interference sleeve connection of the sleeve body and the annular bulge.
The utility model discloses further set up to: the sleeve body is provided with an inclined plane for guiding the annular bulge to be clamped into the sleeve body in an interference manner.
By adopting the technical scheme, the inclined plane can guide the annular bulge to be clamped into the sleeve body in an interference manner.
The utility model discloses further set up to: the cover body is internally and integrally connected with a fixed flange extending towards the annular protrusion direction, the annular protrusion is clamped between the fixed flange and the cover body and is in threaded connection with the fixed flange, and the fixed flange is positioned on the outer side of the positioning nut.
By adopting the technical scheme, the connection between the sleeve body and the annular bulge not only depends on the interference sleeve connection between the sleeve body and the annular bulge, but also depends on the threaded connection between the fixed flange and the annular bulge, so that the connection strength between the sleeve body and the annular bulge is enhanced.
To sum up, the utility model discloses following beneficial effect has:
the device has the characteristics of low investment cost and high ammonia water yield, and achieves the purposes of energy conservation and environmental protection.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is a schematic top view of the manifold and branch sections of an embodiment of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic structural view of a liquid separating disk part in an embodiment of the present invention;
FIG. 5 is a schematic structural view of the embodiment of the present invention in which the upper half and the lower half of the liquid-distributing pipe are separated;
FIG. 6 is a schematic diagram of the embodiment of the present invention showing the flow restriction orifice partially separated;
FIG. 7 is a schematic view of the gasket portion according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a protecting jacket portion according to an embodiment of the present invention.
Reference numerals: 1. a tower body; 2. a gas outlet; 3. a liquid inlet; 4. a filler; 5. a gas inlet; 6. a liquid outlet; 7. a liquid ammonia inlet; 8. a coil pipe; 9. a header pipe; 10. a branch pipe; 11. a liquid separating pipe; 12. a liquid separating disc; 13. a liquid dropping pipe; 14. the upper half section; 15. a lower half section; 16. a restriction orifice plate; 17. positioning holes; 18. a through hole; 19. positioning a rod; 20. positioning a plate; 21. positioning a nut; 22. a gasket; 23. mounting holes; 24. a clamping groove; 25. an annular projection; 26. a protective sleeve; 27. a cap body; 28. a sleeve body; 29. a fixing flange; 30. a bevel.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, an apparatus for preparing ammonia water from liquid ammonia includes a tower body 1. The top of tower body 1 is provided with the gas outlet 2 that is used for tail gas discharge tower body 1, and the upper end of tower body 1 is provided with the liquid import 3 that is used for the demineralized water to get into tower body 1. The upper end of the tower body 1 is provided with a filler 4 positioned below the liquid inlet 3, and the lower end of the tower body 1 is provided with a gas inlet 5 for the purge gas of the ammonia synthesis system to enter the tower body 1. The bottom of the tower body 1 is provided with a liquid outlet 6 for discharging ammonia water out of the tower body 1. The tower body 1 is provided with a liquid ammonia inlet 7 for liquid ammonia to enter, which is located between the packing 4 and the gas inlet 5. If the liquid ammonia inlet 7 is not provided, the tower body 1 can only be used for absorbing the purge gas of the ammonia synthesis system. And the ammonia content in the purge gas is low, resulting in a low ammonia yield. The tower body 1 is provided with a liquid ammonia inlet 7, so that liquid ammonia is absorbed while exhausted gas of the ammonia synthesis system is absorbed, and the yield of ammonia water is increased on the premise of not increasing an additional tower body 1. Therefore, the device has the characteristics of low investment cost and high ammonia water yield, and achieves the purposes of energy conservation and environmental protection. The lower end of the tower body 1 is provided with a coil 8 for introducing circulating water to cool the ammonia water. The water inlet of the coil pipe 8 is lower than the water outlet of the coil pipe 8. After the liquid ammonia is gasified, the liquid ammonia and desalted water are in countercurrent contact reaction at the position of the filler 4, and heat is released in the process of generating ammonia water through absorption. And the ammonia water contacts with the coil pipe 8 which is communicated with the circulating water, so that heat is transferred to the circulating water, and self heat exchange cooling is realized.
Referring to fig. 2, 3 and 4, a main pipe 9 communicating with the liquid inlet 3 and branch pipes 10 communicating with the main pipe 9 are provided in the tower body 1. The manifold 9 and branch pipes 10 are located above the packing 4. The main pipe 9 and the branch pipes 10 are communicated with a plurality of liquid distributing pipes 11. Each liquid separating pipe 11 is connected with a liquid separating disc 12, and a plurality of liquid dropping pipes 13 are arranged in each liquid separating disc 12. The liquid dropping pipes 13 are uniformly distributed on the circumference with the liquid separating pipe 11 as the center. Desalted water gets into house steward 9 from liquid import 3 in proper order, gets into branch pipe 10 from house steward 9, gets into branch liquid pipe 11 from house steward 9 and branch pipe 10, gets into branch liquid dish 12 from dividing liquid pipe 11, gets into liquid pipe 13 from dividing liquid dish 12 to realize the effect of even branch liquid.
Referring to fig. 5, the liquid distribution pipe 11 includes an upper half 14 and a lower half 15 which are flanged. Two identical restriction orifice plates 16 for controlling the flow of liquid into the dispensing disc 12 are provided between the upper section 14 and the lower section 15. Each flow-limiting orifice plate 16 is provided with a positioning hole 17 at the center of the circle. Meanwhile, each restriction orifice plate 16 is provided with a plurality of through holes 18. The plurality of through holes 18 are evenly distributed on the circumference centered on the positioning hole 17. The whole flow-limiting orifice plate 16 can be subjected to the balanced acting force of desalted water, and the stability of the flow-limiting orifice plate 16 is enhanced.
Referring to fig. 6, the same positioning rod 19 is inserted into the positioning hole 17 of the two orifice plates 16. One end of the positioning rod 19 is integrally connected with a positioning plate 20, and the other end of the positioning rod passes through the positioning holes 17 of the two flow-limiting pore plates 16 and then is in threaded connection with a positioning nut 21. The positioning nut 21 is a hexagonal nut. Typically, one would need to adjust the flow of liquid into the dispensing disc 12 by replacing the restriction orifice plate 16 with a different aperture through hole 18. At this time, it is necessary to prepare the orifice restriction plate 16 having the through holes 18 with different diameters. The size of the overlapped area of the two through holes 18 is adjusted by utilizing the relative rotation between the two restriction orifice plates 16, and the two restriction orifice plates 16 are fixed between the positioning nut 21 and the positioning plate 20 by utilizing the threaded connection of the positioning nut 21 and the positioning rod 19. Meanwhile, the positioning nut 21 and the positioning plate 20 extrude the two flow-limiting pore plates 16 to fix the positions of the two flow-limiting pore plates 16 after relative rotation, so that the liquid flow entering the liquid separating disc 12 is fixed, the liquid flow entering the liquid separating disc 12 is adjusted, the flow-limiting pore plates 16 with through holes 18 with different apertures do not need to be prepared, and the production cost is reduced. A spacer 22 is disposed between the retaining nut 21 and the adjacent restrictor orifice plate 16. The spacer 22 is provided with a mounting hole 23 for the positioning rod 19 to pass through.
Referring to fig. 7 and 8, the spacer 22 is provided with a catching groove 24 communicating with the mounting hole 23. The positioning nut 21 is clamped in the clamping groove 24 and is tightly abutted with the groove wall of the clamping groove 24. The gasket 22 is provided with an annular projection 25 along the rim of the gasket 22 extending away from the restriction orifice plate 16. One end of the positioning rod 19 close to the positioning nut 21 is sleeved with a protective sleeve 26. The protective sheath 26 comprises a cap body 27 and a sheath body 28 which are integrally connected. The sleeve body 28 is integrally connected to a fixing flange 29 extending toward the annular protrusion 25. The fixing flange 29 is located outside the positioning nut 21. The annular projection 25 is trapped between the fixing flange 29 and the sleeve body 28 and is screwed to the fixing flange 29. The sleeve body 28 is provided with a bevel 30 for guiding the annular protrusion 25 to be interference-fitted into the sleeve body 28, so that the sleeve body 28 and the annular protrusion 25 are interference-fitted. The connection between the sleeve 28 and the annular protrusion 25 depends on the threaded connection between the fixing flange 29 and the annular protrusion 25, and also depends on the interference fit between the sleeve 28 and the annular protrusion 25, so as to enhance the connection strength between the sleeve 28 and the annular protrusion 25. The sleeve body 28 and the annular bulge 25 are in interference sleeve joint, so that the part of the positioning rod 19 in threaded connection with the positioning nut 21 and the positioning nut 21 are sealed in a sealed area, contact with desalted water is avoided, the positioning rod 19 and the positioning nut 21 can be delayed from being corroded, and the time that the two flow-limiting pore plates 16 can rotate relatively can be prolonged. The positioning nut 21 is engaged with the engaging groove 24 and is in close contact with the groove wall of the engaging groove 24, so that the rotation of the spacer 22 around the axis of the mounting hole 23 can be restricted. The gasket 22 is pressed by the restriction orifice plate 16 and the positioning nut 21, and the gasket 22 can be restricted from rotating around the axis of the mounting hole 23. When the sleeve body 28 is sleeved on the annular protrusion 25 in an interference manner, a large interaction force exists between the sleeve body 28 and the annular protrusion 25. The rotation of the restraining washer 22 facilitates the threaded connection of the fixing flange 29 and the annular projection 25 and the interference fit of the sleeve 28 and the annular projection 25. The chamfer 30 is able to guide the annular projection 25 to be interference-clipped inside the envelope 28.
The working process is as follows: liquid ammonia and purge gas of an ammonia synthesis system respectively enter the tower body 1 from a liquid ammonia inlet 7 and a gas inlet 5, and desalted water enters the tower body 1 from a liquid inlet 3. Desalted water sequentially enters the main pipe 9 from the liquid inlet 3, enters the branch pipes 10 from the main pipe 9, enters the liquid distribution pipe 11 from the main pipe 9 and the branch pipes 10, enters the liquid distribution disc 12 from the liquid distribution pipe 11, and enters the liquid falling pipe 13 from the liquid distribution disc 12, so that spraying dispersion from top to bottom is realized. The gasified liquid ammonia is contacted with desalted water from top to bottom in a counter-current way from bottom to top, and the liquid ammonia is distributed at the position of the filler 4 for reaction and absorption and releases heat to generate ammonia water. The ammonia water contacts with the coil pipe 8 that leads to there is the circulating water to give the circulating water with heat transfer, realize that self heat transfer cooling back leaves tower body 1 from liquid outlet 6. And off-gas leaves the column 1 at gas outlet 2.
When the flow of the desalted water needs to be adjusted, the flange connection of the upper half section 14 and the lower half section 15 of the liquid distribution pipe 11 is firstly removed, then the protecting sleeve 26 is driven to rotate relative to the flow limiting pore plate 16 to realize the separation of the protecting sleeve 26 and the annular bulge 25, and then the positioning nut 21 is unscrewed. At this time, the two restriction orifice plates 16 can be driven to rotate relatively around the positioning rod 19 until the size of the through hole 18 meets the flow requirement, the positioning nut 21 is clamped into the clamping groove 24 of the gasket 22, and the positioning nut 21 is screwed. Then, the annular protrusion 25 is aligned with the portion between the fixing flange 29 and the sleeve body 28, and the protective sleeve 26 is driven to rotate relative to the annular protrusion 25 until the sleeve body 28 and the annular protrusion 25 are in interference fit.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications without inventive contribution to the present embodiment as required after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (10)
1. The utility model provides a device with liquid ammonia preparation aqueous ammonia, includes tower body (1), the top of tower body (1) is provided with gas outlet (2) that are used for tail gas exhaust tower body (1), the upper end of tower body (1) is provided with liquid inlet (3) that are used for the desalinized water to get into tower body (1), the upper end of tower body (1) is provided with filler (4) that are located liquid inlet (3) below, the lower extreme of tower body (1) is provided with gas inlet (5) that are used for ammonia synthesis system to relax and bleed and get into tower body (1), the bottom of tower body (1) is provided with liquid outlet (6) that are used for aqueous ammonia exhaust tower body (1), characterized by: the tower body (1) is provided with a liquid ammonia inlet (7) which is positioned between the filler (4) and the gas inlet (5) and used for liquid ammonia to enter.
2. The apparatus for producing ammonia water from liquid ammonia according to claim 1, wherein: the lower extreme of tower body (1) is provided with coil pipe (8) that are used for letting in the circulating water and give the aqueous ammonia cooling, the water inlet of coil pipe (8) is less than the delivery port of coil pipe (8).
3. The apparatus for producing ammonia water from liquid ammonia according to claim 1, wherein: be provided with house steward (9) with liquid inlet (3) intercommunication and branch pipe (10) with house steward (9) intercommunication in tower body (1), house steward (9) and branch pipe (10) are located filler (4) top, house steward (9) and branch pipe (10) all communicate have many to divide liquid pipe (11), every divide liquid pipe (11) to be connected with and divide liquid dish (12), every be provided with many liquid droppers (13) in dividing liquid dish (12), many liquid droppers (13) evenly distributed is on the circumference with liquid pipe (11) as the centre of a circle.
4. The apparatus for producing ammonia water from liquid ammonia according to claim 3, wherein: divide liquid pipe (11) including flange joint first half section (14) and second half section (15), be provided with between first half section (14) and second half section (15) and be used for the control to get into the current-limiting orifice plate (16) that divides liquid dish (12) liquid flow, be provided with through-hole (18) on current-limiting orifice plate (16).
5. The apparatus for producing ammonia water from liquid ammonia according to claim 4, wherein: the two flow-limiting pore plates (16) are arranged, the circle centers of the two flow-limiting pore plates (16) are provided with positioning holes (17), the same positioning rod (19) which is fixedly kept with the two flow-limiting pore plates (16) along the axial lead direction of the positioning holes (17) penetrates through the two positioning holes (17), and when the two flow-limiting pore plates (16) rotate around the positioning rod (19) relatively, through holes (18) of the two flow-limiting pore plates (16) are changed into a dislocation state from an alignment state.
6. The apparatus for producing ammonia water from liquid ammonia according to claim 5, wherein: each flow limiting pore plate (16) is provided with a plurality of through holes (18), and the through holes (18) are uniformly distributed on the circumference with the positioning hole (17) as the center of a circle.
7. The apparatus for producing ammonia water from liquid ammonia according to claim 5, wherein: one end of the positioning rod (19) is integrally connected with a positioning plate (20), one end, far away from the positioning plate (20), of the positioning rod (19) penetrates through positioning holes (17) of the two flow-limiting pore plates (16) and then is connected with a positioning nut (21) in a threaded mode, a gasket (22) is arranged between the positioning nut (21) and the adjacent flow-limiting pore plates (16), and the gasket (22) is provided with a mounting hole (23) for the positioning rod (19) to penetrate through.
8. The apparatus for producing ammonia water from liquid ammonia according to claim 7, wherein: gasket (22) are provided with screens groove (24) with mounting hole (23) intercommunication, set nut (21) card go into screens groove (24) and with screens groove (24) cell wall inseparable butt, set nut (21) are hexagon nut, gasket (22) are provided with along the border of gasket (22) towards deviating from annular protruding (25) that current-limiting orifice plate (16) direction extended, lag (26) have been cup jointed to the one end that set rod (19) are close to set nut (21), the cap body (27) and the cover body (28) of lag (26) including a body coupling, cover body (28) cup joint with annular protruding (25) interference.
9. The apparatus for producing ammonia water from liquid ammonia according to claim 8, wherein: the sleeve body (28) is provided with an inclined surface (30) used for guiding the annular bulge (25) to be clamped into the sleeve body (28) in an interference manner.
10. The apparatus for producing ammonia water from liquid ammonia according to claim 8, wherein: the cover body (28) is internally and integrally connected with a fixing flange (29) extending towards the direction of the annular protrusion (25), the annular protrusion (25) is clamped between the fixing flange (29) and the cover body (28) and is in threaded connection with the fixing flange (29), and the fixing flange (29) is positioned on the outer side of the positioning nut (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920354642.XU CN209934487U (en) | 2019-03-20 | 2019-03-20 | Device for preparing ammonia water by using liquid ammonia |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920354642.XU CN209934487U (en) | 2019-03-20 | 2019-03-20 | Device for preparing ammonia water by using liquid ammonia |
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| CN209934487U true CN209934487U (en) | 2020-01-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821432A (en) * | 2019-03-20 | 2019-05-31 | 山东恒昌聚材化工科技股份有限公司 | The device of ammonium hydroxide is prepared with liquefied ammonia |
-
2019
- 2019-03-20 CN CN201920354642.XU patent/CN209934487U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109821432A (en) * | 2019-03-20 | 2019-05-31 | 山东恒昌聚材化工科技股份有限公司 | The device of ammonium hydroxide is prepared with liquefied ammonia |
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