CN212632240U - Ammonia-containing tail gas absorption system - Google Patents
Ammonia-containing tail gas absorption system Download PDFInfo
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- CN212632240U CN212632240U CN202020794148.8U CN202020794148U CN212632240U CN 212632240 U CN212632240 U CN 212632240U CN 202020794148 U CN202020794148 U CN 202020794148U CN 212632240 U CN212632240 U CN 212632240U
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- ammonia
- absorption tank
- pipe
- tail gas
- tank
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Abstract
The utility model provides an ammonia-containing tail gas absorption system, including the ammonia absorption tank, ammonia absorption tank bottom is connected with the intake pipe, the end of giving vent to anger of intake pipe is connected with the distributor, fill water in the ammonia absorption tank, the aquatic in the ammonia absorption tank is equipped with spiral coil's heat exchange tube, be equipped with packing layer one in the ammonia absorption tank in the surface of water top, a packing layer top is equipped with the shower, install the atomizer on the shower, the shower pass through the circulating pipe with ammonia absorption tank sub-unit connection, the ammonia pump has concatenated on the circulating pipe, the top of ammonia absorption tank is connected with ammonia recovery unit, ammonia recovery unit is including retrieving the jar. The utility model relates to a rationally, can make out high concentration aqueous ammonia, use by oneself or sell on the market, realize waste utilization, resources are saved avoids ammonia polluted environment, green.
Description
Technical Field
The utility model belongs to the chemical industry equipment field especially relates to an ammonia-containing tail gas absorption system.
Background
The gaseous phase in the steel bottle needs to be discharged in the liquid ammonia steel bottle filling process, and the pressure in the steel bottle can not be too high when filling like this. Ammonia-containing tail gas is also often present in chemical production. Ammonia gas is a moderately harmful gas with strong pungent odor, and is directly discharged without being treated, so that the ammonia gas is not beneficial to environmental protection and human health. Therefore, the treatment of ammonia is an important part of the industrial production process.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing an contain ammonia tail gas absorption system to carry out efficient recovery processing to the ammonia.
In order to achieve the above purpose, the technical scheme of the utility model is realized like this:
the utility model provides an contain ammonia tail gas absorption system, includes the ammonia absorption jar, ammonia absorption jar bottom is connected with the intake pipe, the end of giving vent to anger of intake pipe is connected with the distributor, fill water in the ammonia absorption jar, the aquatic in the ammonia absorption jar is equipped with spiral coil's heat exchange tube, be equipped with packing layer one in the ammonia absorption jar above the surface of water, packing layer one top is equipped with the shower, install the atomizer on the shower, the shower pass through the circulating pipe with ammonia absorption jar sub-unit connection, ammonia pump has concatenated on the circulating pipe, the top of ammonia absorption jar is connected with ammonia recovery unit, ammonia recovery unit is including retrieving the jar, it is equipped with packing layer two to retrieve the tank bottoms portion, and the top of retrieving the jar is connected with the moisturizing pipe, it is connected with noncondensable gas delivery pipe to retrieve jar.
Further, an ammonia absorption tank is arranged on one side of the ammonia absorption tank, the buffer tank is connected with the air inlet end of the air inlet pipe, and a pressure gauge is arranged at the top of the buffer tank.
Furthermore, a check valve is installed on the air inlet pipe.
Further, install the level gauge that is used for detecting the liquid level and be used for detecting the concentration appearance of aqueous ammonia concentration in the ammonia absorption jar on the ammonia absorption jar.
Furthermore, a liquid outlet pipe is connected to the joint of the spray pipe and the circulating pipe through a three-way joint, and an automatic control valve is mounted on the liquid outlet pipe and is in signal connection with the liquid level meter.
Further, the inboard of heat exchange tube is equipped with spiral vortex device, spiral vortex device includes center pin, helical blade, dead lever, the both sides of dead lever are fixed in on the ammonia absorption tank inner wall, the center pin is fixed in on the dead lever, the helical blade spiral coils in the periphery of center pin.
Furthermore, one end of the heat exchange tube is connected with a cold water inlet tube, and the other end of the heat exchange tube is connected with a cold water outlet tube.
Compared with the prior art, ammonia-containing tail gas absorption system has the following advantages:
(1) the utility model discloses an ammonia-containing tail gas absorption system, reasonable in design, ammonia-containing waste gas gets into the ammonia absorption tower and evenly gets into the aquatic through the equipartition ware, fully mixes the contact with water, and the heat exchange tube reduces the temperature of hot aqueous ammonia in order to increase the solubility of ammonia, and ammonia recovery unit ensures that ammonia retrieves completely, the utility model discloses can make high concentration aqueous ammonia, use by oneself or sell on the market, realize waste utilization, resources are saved avoids ammonia pollution environment, green;
(2) the ammonia-containing tail gas absorption system of the utility model is provided with the buffer tank at one side of the ammonia absorption tower, and ammonia-containing waste gas firstly enters the buffer tank for buffering, so that the overlarge pipeline pressure is avoided;
(3) the ammonia-containing tail gas absorption system of the utility model is provided with the check valve on the air inlet pipe, thereby effectively avoiding the occurrence of suck-back phenomenon and ensuring the safety of equipment;
(4) the ammonia-containing tail gas absorption system of the utility model is provided with the liquid level meter and the automatic control valve, is automatically controlled in real time, does not need manual operation, and has high automation degree, safety and reliability;
(5) contain ammonia tail gas absorption system, be provided with spiral vortex device, spiral vortex device carries out the disturbance to containing ammonia tail gas, forms the swirl, has increased the area of contact who contains ammonia tail gas and water, is favorable to containing the ammonia in the ammonia tail gas by abundant absorption.
Drawings
The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:
fig. 1 is a structural diagram of an ammonia-containing tail gas absorption system according to an embodiment of the present invention.
Description of reference numerals:
1. a buffer tank; 11. a pressure gauge; 12. an air inlet pipe; 121. a one-way valve; 2. an ammonia absorption tank; 21. a shower pipe; 211. a liquid outlet pipe; 212. a self-control valve; 22. an atomizing spray head; 23. a circulation pipe; 24. an ammonia pump; 25. a distributor; 26. a heat exchange pipe; 27. a first packing layer; 28. a liquid level meter; 29. an ammonia water concentration meter; 5. a spiral flow disturbing device; 51. a central shaft; 52. a helical blade; 53. fixing the rod; 6. an ammonia gas recovery device; 61. a recovery tank; 62. a second packing layer; 63. a water replenishing pipe; 64. noncondensable gas discharge pipe.
Detailed Description
It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The utility model provides an it absorbs system to contain ammonia tail gas, as shown in figure 1, includes buffer tank 1 and ammonia absorption tank 2, the top of buffer tank 1 is equipped with manometer 11, contains ammonia waste gas and cache in getting into buffer tank 1 earlier, avoids pipeline pressure too big. The top of the buffer tank 1 and the bottom of the ammonia absorption tank 2 are connected with an air inlet pipe 12, and the air outlet end of the air inlet pipe 12 is connected with a distributor 25. The ammonia absorber 2 is internally filled with water for absorbing ammonia gas, and because a large amount of ammonia gas can emit a large amount of heat when being dissolved in water, the solubility of ammonia gas is influenced, the solubility of ammonia gas is increased by reducing the temperature of hot ammonia water, the water in the ammonia absorber 2 is provided with a heat exchange tube 26 which is spirally wound, one end of the heat exchange tube 26 is connected with cold water and enters the tube, and the other end of the heat exchange tube 26 is connected with a cold water outlet tube (not shown in the figure).
In order to ensure that ammonia is completely recovered, the top of ammonia absorption tank 2 is connected with ammonia recovery unit 6, ammonia recovery unit 6 is including retrieving jar 61, it is equipped with two packing layers 62 to retrieve jar 61 bottom, and water forms the water film on the packing surface when packing layer two 62, enlarges the area of contact of water and ammonia, is favorable to the absorption of ammonia. The top of the recovery tank 61 is connected with a water replenishing pipe 63 for replenishing water to the ammonia absorption tank 2, and one side of the upper part of the recovery tank 61 is connected with a non-condensable gas discharge pipe 64. The water flows into the ammonia absorption tank 2 from the water replenishing pipe 63, meanwhile, unabsorbed ammonia gas and other non-condensable gases move upwards to the recovery tank 61, the ammonia gas is absorbed by the water film on the second packing layer 62 when passing through the second packing layer 62, and the non-condensable gases are discharged into the atmosphere from the non-condensable gas discharge pipe 64.
A first packing layer 27 is arranged above the water surface in the ammonia absorption tank 2, and when water passes through the first packing layer 27, a water film is formed on the surface of the packing, so that the contact area of the water and ammonia gas is enlarged, and the absorption of the ammonia gas is facilitated. A spray pipe 21 is arranged above the first packing layer 27, an atomizing nozzle 22 is arranged on the spray pipe 21, the spray pipe 21 is connected with the lower part of the ammonia absorption tank 2 through a circulating pipe 23, an ammonia pump 24 is connected on the circulating pipe 23 in series, and circulating absorption is realized through the spray pipe 21 and the circulating pipe 23.
To avoid suck-back, the intake pipe 12 is provided with a check valve 121.
The ammonia absorption tank 2 is provided with a liquid level meter 28 for detecting the liquid level and an ammonia water concentration meter 29 for detecting the concentration of ammonia water in the ammonia absorption tank 2. The liquid level and the ammonia water concentration in the ammonia still can be known in real time through the liquid level meter 28 and the ammonia water concentration meter 29.
The joint of the spray pipe 21 and the circulating pipe 23 is connected with a liquid outlet pipe 211 through a three-way joint, the liquid outlet pipe 211 is provided with an automatic control valve 212, and the automatic control valve 212 is in signal connection with the liquid level meter 28. When the liquid level in the ammonia absorption tank 2 is lower, the automatic control valve 212 is closed, and the liquid is stopped from being discharged outwards; when the liquid level in the ammonia absorption tank 2 is high, the self-control valve 212 is opened to discharge liquid to the outside.
The inboard of heat exchange tube 26 is equipped with spiral vortex device 5, spiral vortex device 5 includes center pin 51, helical blade 52, dead lever 53, the both sides of dead lever 53 are fixed in on the inner wall of ammonia holding vessel 2, center pin 51 is fixed in on the dead lever 53, helical blade 52 spiral coils in the periphery of center pin 51. The tail gas that contains ammonia flows from down upwards, reachs spiral vortex device 5 after, helical blade 52 carries out the disturbance to the tail gas that contains ammonia, forms the whirl, has increased the area of contact who contains ammonia tail gas and water, is favorable to the ammonia in the tail gas that contains ammonia by abundant absorption.
The utility model discloses a working process:
the tail gas containing ammonia firstly enters the buffer tank 1, then enters the air inlet pipe 12, enters the ammonia absorption tank 2 after passing through the one-way valve 121, is uniformly distributed by the distributor 25, is mostly dissolved in water in a bubbling absorption mode, and simultaneously emits a large amount of heat, and the ammonia gas which is not completely absorbed overflows the water surface. The heat exchanger is arranged in the hot ammonia water, and the temperature of the hot ammonia water is reduced through external cooling water circulation so as to increase the solubility of the ammonia gas. The tail gas containing ammonia flows upwards from the bottom, and after reaching the spiral flow disturbing device 5, the tail gas containing ammonia collides with the spiral blade 52 to generate a rotational flow, so that the contact area between the tail gas containing ammonia and water is increased, and ammonia in the tail gas containing ammonia is fully absorbed.
Meanwhile, the ammonia water pump 24 conveys the cooled ammonia water to the top of the ammonia absorption tank 2, the ammonia water is atomized into fog drops through the atomizing nozzle, a regular packing layer 27 is arranged below the atomizing nozzle, the fog drops to the packing layer 27 to form a water film on the surface of the packing, the contact area of ammonia gas and water is enlarged, the absorption capacity is increased, and the water film is used for realizing circular absorption in the ammonia gas dissolution which is not completely absorbed. If the tail gas contains non-condensable gas, the tail gas is discharged through an ammonia gas recovery device 6.
The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An ammonia-containing tail gas absorption system is characterized in that: including the ammonia absorption tank, ammonia absorption tank bottom is connected with the intake pipe, the end of giving vent to anger of intake pipe is connected with the distributor, fill water in the ammonia absorption tank, the aquatic in the ammonia absorption tank is equipped with the heat exchange tube that the spiral coiled, be equipped with packing layer one in the ammonia absorption tank above the surface of water, packing layer one top is equipped with the shower, install the atomizer on the shower, the shower pass through the circulating pipe with ammonia absorption tank sub-unit connection, ammonia pump has concatenated on the circulating pipe, the top of ammonia absorption tank is connected with ammonia recovery unit, ammonia recovery unit is including retrieving the jar, it is equipped with packing layer two to retrieve tank bottom, and the top of retrieving the jar is connected with the moisturizing pipe, it is connected with noncondensable gas discharge pipe to retrieve jar upper portion one side.
2. The ammonia-containing tail gas absorption system according to claim 1, wherein: the ammonia absorption tank is characterized in that a buffer tank is arranged on one side of the ammonia absorption tank and connected with the air inlet end of the air inlet pipe, and a pressure gauge is arranged at the top of the buffer tank.
3. The ammonia-containing tail gas absorption system according to claim 1, wherein: and the air inlet pipe is provided with a one-way valve.
4. The ammonia-containing tail gas absorption system according to claim 1, wherein: and the ammonia absorption tank is provided with a liquid level meter for detecting the liquid level and a concentration meter for detecting the concentration of ammonia water in the ammonia absorption tank.
5. The ammonia-containing tail gas absorption system according to claim 4, wherein: the joint of the spray pipe and the circulating pipe is connected with a liquid outlet pipe through a three-way joint, the liquid outlet pipe is provided with an automatic control valve, and the automatic control valve is in signal connection with the liquid level meter.
6. The ammonia-containing tail gas absorption system according to claim 1, wherein: the inboard of heat exchange tube is equipped with spiral vortex device, spiral vortex device includes center pin, helical blade, dead lever, the both sides of dead lever are fixed in on the ammonia absorption tank inner wall, the center pin is fixed in on the dead lever, the helical blade spiral coils in the periphery of center pin.
7. The ammonia-containing tail gas absorption system according to claim 1, wherein: one end of the heat exchange tube is connected with a cold water inlet tube, and the other end of the heat exchange tube is connected with a cold water outlet tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020794148.8U CN212632240U (en) | 2020-05-13 | 2020-05-13 | Ammonia-containing tail gas absorption system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020794148.8U CN212632240U (en) | 2020-05-13 | 2020-05-13 | Ammonia-containing tail gas absorption system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212632240U true CN212632240U (en) | 2021-03-02 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020794148.8U Expired - Fee Related CN212632240U (en) | 2020-05-13 | 2020-05-13 | Ammonia-containing tail gas absorption system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212632240U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534456A (en) * | 2022-02-25 | 2022-05-27 | 华能平凉发电有限责任公司 | Liquid ammonia holding vessel relief valve ammonia gas of releasing dilutes processing system |
| CN114669169A (en) * | 2022-04-07 | 2022-06-28 | 青岛双瑞海洋环境工程股份有限公司 | Ship ammonia gas treatment system and ship |
-
2020
- 2020-05-13 CN CN202020794148.8U patent/CN212632240U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114534456A (en) * | 2022-02-25 | 2022-05-27 | 华能平凉发电有限责任公司 | Liquid ammonia holding vessel relief valve ammonia gas of releasing dilutes processing system |
| CN114669169A (en) * | 2022-04-07 | 2022-06-28 | 青岛双瑞海洋环境工程股份有限公司 | Ship ammonia gas treatment system and ship |
| CN114669169B (en) * | 2022-04-07 | 2024-05-14 | 青岛双瑞海洋环境工程股份有限公司 | Ship ammonia treatment system and ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210302 |