CN211998842U - Ammonia water preparation system for online dilution of liquid ammonia - Google Patents
Ammonia water preparation system for online dilution of liquid ammonia Download PDFInfo
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- CN211998842U CN211998842U CN202020592741.4U CN202020592741U CN211998842U CN 211998842 U CN211998842 U CN 211998842U CN 202020592741 U CN202020592741 U CN 202020592741U CN 211998842 U CN211998842 U CN 211998842U
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Abstract
The utility model discloses an aqueous ammonia preparation system for liquid ammonia dilutes on line, including unloading ammonia system, aqueous ammonia preparation system, cooling water system, soft water system, aqueous ammonia system and tail gas absorption system, aqueous ammonia preparation system includes the diluter, it includes liquid ammonia tank wagon, the oil filling riser of unloading, liquid ammonia pump of unloading, nitrogen gas unit, nitrogen gas purge pipeline, liquid ammonia pipeline to unload the ammonia system, the liquid ammonia tank wagon is connected with the oil filling riser of unloading, the oil filling riser of unloading is connected with the diluter through liquid ammonia pipeline. The utility model discloses simple structure utilizes soft water preparation system and cooling system and liquid ammonia dilution system can directly carry out the dilution process of liquid ammonia, reduces the emergence that the aqueous ammonia leaked the problem simultaneously, has improved efficiency and stability and the security that the liquid ammonia diluted, can realize the preparation demand of large-traffic aqueous ammonia simultaneously, satisfies the use of production in-process aqueous ammonia in the enterprise, and is easy and simple to handle.
Description
Technical Field
The utility model relates to an aqueous ammonia dilutes technical field, especially relates to an aqueous ammonia preparation system that is used for liquid ammonia to dilute on line.
Background
Industrial ammonia is an aqueous solution containing 25-28% ammonia, and only a small portion of ammonia molecules in ammonia water react with water to form ammonia monohydrate, which is a weak base only present in ammonia water. The ammonia water is widely used in wool spinning, silk, printing and dyeing and other industries for dissolving and adjusting the pH value, and is used as a dyeing assistant and the like. The organic industry is used as aminating agent, catalyst for producing thermosetting phenolic resin, and the inorganic industry is used for preparing and selecting various iron salts.
The invention with the application number of 201611169478.2 discloses an integrated skid-mounted ammonia water conveying module device, which mainly comprises an ammonia water solution storage and dilution water system, wherein the ammonia water solution storage system sequentially comprises an ammonia water tank truck, an ammonia water conveying pipeline, an ammonia water pump and an ammonia water storage tank; dilution water system comprises dilution water, dilution water pipeline, dilution water pump, dilution water tank's entry pipeline and ammonia holding vessel pass through pipeline and link to each other, install the electromagnetic flow meter on its pipeline and be used for the metering transport aqueous ammonia to get into in the dilution water tank, dilution aqueous ammonia transport module after the dilution carries the dilution aqueous ammonia to boiler metering hybrid system. The device is suitable for modular transportation according to skid-mounted devices, wherein the electromagnetic flow meter can automatically input program control ammonia water and dilution water flow, the concentration of the diluted ammonia water is automatically adjusted, and energy conservation and production cost reduction are facilitated.
However, the integrated skid-mounted ammonia water delivery module device directly dilutes concentrated ammonia water into low-concentration ammonia water, has limited system applicability, cannot directly dilute the ammonia water for use, and has poor safety, and the conventional ammonia water dilution device adopted in the current market has the defects of large volume, high energy consumption, easy leakage and poor safety performance, so that the ammonia water preparation system for online dilution of the ammonia water is provided for solving the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing an ammonia water preparation system for online dilution of liquid ammonia.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the ammonia water preparation system comprises an ammonia unloading system, an ammonia water preparation system, a cooling water system, a soft water system, an ammonia water system and a tail gas absorption system, wherein the ammonia water preparation system comprises a diluter, the ammonia unloading system comprises a liquid ammonia tank car, an unloading crane pipe, a liquid ammonia unloading pump, a nitrogen unit, a nitrogen purging pipeline and a liquid ammonia delivery pipeline, the liquid ammonia tank car is connected with the unloading crane pipe, the unloading crane pipe is connected with the diluter through the liquid ammonia delivery pipeline, the nitrogen unit is connected with the liquid ammonia delivery pipeline through the nitrogen purging pipeline, and the liquid ammonia unloading pump is installed on the liquid ammonia delivery pipeline;
the cooling water system comprises a circulating water pool, a circulating water inlet pipeline and a circulating water return pipe, wherein the circulating water pool is connected with the diluter through the circulating water inlet pipeline and the circulating water return pipe;
the water softening system comprises a water softening system, a water softening tank, a water softening pipeline and a water softening pump, the water softening system is communicated with the water softening tank, the water softening tank is connected with the diluter through the water softening pipeline, and the water softening pump is installed on the water softening pipeline;
the ammonia water system comprises an ammonia water tank, an ammonia water tank truck, an ammonia water delivery pump, an ammonia water dilution delivery pipeline, an ammonia water delivery pipeline and a production ammonia water supply pipeline, wherein the ammonia water tank is connected with the diluter through the ammonia water dilution delivery pipeline, the ammonia water tank is respectively connected with the production ammonia water supply pipeline and the ammonia water tank truck through the ammonia water delivery pipeline, and the ammonia water delivery pump is installed on the ammonia water delivery pipeline;
the tail gas absorption system comprises a tail gas absorption tank, a liquid collecting pump, two ammonia tail gas pipelines and an ammonia water absorption liquid pipeline, wherein the tail gas absorption tank is connected with an ammonia water dilution conveying pipeline through the ammonia water absorption liquid pipeline, the tail gas absorption tank and an ammonia water tank are connected through the ammonia tail gas pipeline, the liquid ammonia conveying pipeline is connected with the tail gas absorption tank through another ammonia tail gas pipeline, and the liquid collecting pump is installed on the ammonia water absorption liquid pipeline.
Preferably, the material of ammonia water jar is stainless steel material or glass steel material.
Preferably, the diluter is made of 316L material.
Preferably, install temperature sensor and pressure sensor on the circulating water wet return respectively, flow sensor and pressure sensor are installed respectively to last and last equalling divide of soft water pipeline of liquid ammonia pipeline, all install temperature sensor on the circulating water intake pipe and on the aqueous ammonia dilutes the pipeline, install level sensor on the aqueous ammonia jar.
Preferably, circulation inlet pipe is last all to install two stop valves for ammonia with the circulating water wet return, install stop valve, duct filter, check valve, ball valve, governing valve, check valve and ball valve for ammonia on the liquid ammonia pipeline in proper order, nitrogen gas sweeps and installs check valve and stop valve for ammonia on the pipeline respectively, install ball valve, automatic back pressure valve and stop valve for ammonia on the aqueous ammonia dilutes the pipeline in proper order.
Preferably, install ball valve, check valve, governing valve, pipeline filter, ball valve and stop valve for ammonia on the soft water pipeline in proper order, install three stop valve for ammonia on the aqueous ammonia absorption liquid pipeline in proper order, all install stop valve for ammonia on two ammonia tail gas pipelines, install three stop valve for ammonia on the aqueous ammonia pipeline.
Compared with the prior art, the beneficial effects of the utility model are that:
1. in the utility model, the liquid ammonia of the liquid ammonia tank car can be conveyed by the unloading crane pipe and the unloading pump through the unloading system, the liquid ammonia is conveyed into the liquid ammonia diluter by controlling a certain flow, the nitrogen unit can sweep the pipeline valve for ammonia after unloading, and the ammonia remaining in the pipeline for ammonia is swept into the tail gas absorption tank to be absorbed, so as to prevent the ammonia from diffusing and remaining;
2. the utility model discloses in, the diluter is as the reactor in the liquid ammonia dilution system, liquid ammonia and soft water mainly carry out the contact reaction in the aqueous ammonia diluter and absorb, do benefit to the ammonia that soft water produced with liquid ammonia decompression and absorb, the heat that the reaction process produced carries out the heat transfer at the diluter through the cooling water, guarantee that the temperature is in 40~69 ℃ in the diluter, this temperature can reduce the scale deposit problem of aqueous ammonia dilution process, the soft water system can utilize the soft water that preparation aqueous ammonia dilutes the use, the scale deposit problem in the aqueous ammonia dilution process can be reduced in the use of soft water, the soft water can utilize soft water system preparation to produce soft water, store to the soft water tank in, utilize soft water pump and soft water pipeline to directly carry the soft water in the soft water tank to the diluter in;
3. the utility model discloses in, aqueous ammonia system can store the aqueous ammonia storage tank with the aqueous ammonia after diluting in, utilize the aqueous ammonia pump to carry the aqueous ammonia that the enterprise uses aqueous ammonia department or aqueous ammonia tank wagon with the aqueous ammonia, tail gas absorption system can send the remaining ammonia of liquid ammonia pipeline department of sweeping and the ammonia that maintains the interior pressure balance of aqueous ammonia jar release to tail gas absorption tank and absorb the processing, prevent the escape diffusion of ammonia, the usable liquid collecting pump of aqueous ammonia that absorbs the tail gas simultaneously and form passes through aqueous ammonia absorption liquid pipeline and carry to the aqueous ammonia jar in.
The utility model discloses simple structure utilizes soft water preparation system and cooling system and liquid ammonia dilution system can directly carry out the dilution process of liquid ammonia, reduces the emergence that the aqueous ammonia leaked the problem simultaneously, has improved efficiency and stability and the security that the liquid ammonia diluted, can realize the preparation demand of large-traffic aqueous ammonia simultaneously, satisfies the use of production in-process aqueous ammonia in the enterprise, and is easy and simple to handle.
Drawings
Fig. 1 is a schematic diagram of an ammonia water preparation system for online dilution of liquid ammonia according to the present invention.
In the figure: 1 diluter, 2 ammonia water jars, 3 soft water tanks, 4 tail gas absorption tanks, 5 ammonia tank cars, 6 ammonia water delivery pump, 7 liquid collecting pump, 8 ammonia tank cars, 9 unloading loading arm, 10 ammonia water unloading pump, 11 nitrogen unit, 12 soft water pump, 13 soft water pipeline, 14 ammonia water dilution delivery pipeline, 15 circulation inlet channel, 16 ammonia water delivery pipeline, 17 circulating water wet return, 18 ammonia tail gas pipeline, 19 ammonia water delivery pipeline, 20 nitrogen sweep the pipeline, 21 ammonia water absorption liquid pipeline, 22 circulating water pond, 23 soft water system, 24 production ammonia water supply pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1, an ammonia water preparation system for online dilution of liquid ammonia comprises an ammonia unloading system, an ammonia water preparation system, a cooling water system, a water softening system, an ammonia water system and a tail gas absorption system, wherein the ammonia water preparation system comprises a diluter 1, the ammonia unloading system comprises a liquid ammonia tank wagon 8, an unloading crane pipe 9, a liquid ammonia unloading pump 10, a nitrogen unit 11, a nitrogen purging pipeline 20 and a liquid ammonia delivery pipeline 19, the liquid ammonia tank wagon 8 is connected with the unloading crane pipe 9, the unloading crane pipe 9 is connected with the diluter 1 through the liquid ammonia delivery pipeline 19, the nitrogen unit 11 is connected with the liquid ammonia delivery pipeline 19 through the nitrogen purging pipeline 20, and the liquid ammonia unloading pump 10 is installed on the liquid ammonia delivery pipeline 19;
the cooling water system comprises a circulating water pool 22, a circulating water inlet pipeline 15 and a circulating water return pipe 17, wherein the circulating water pool 22 is connected with the diluter 1 through the circulating water inlet pipeline 15 and the circulating water return pipe 17;
the soft water system comprises a soft water making system 23, a soft water tank 3, a soft water pipeline 13 and a soft water pump 12, the soft water making system 23 is communicated with the soft water tank 3, the soft water tank 3 is connected with the diluter 1 through the soft water pipeline 13, and the soft water pump 12 is installed on the soft water pipeline 13;
the ammonia water system comprises an ammonia water tank 2, an ammonia water tank truck 5, an ammonia water delivery pump 6, an ammonia water dilution delivery pipeline 14, an ammonia water delivery pipeline 16 and a production ammonia water supply pipeline 24, wherein the ammonia water tank 2 is connected with the diluter 1 through the ammonia water dilution delivery pipeline 14, the ammonia water tank 2 is respectively connected with the production ammonia water supply pipeline 24 and the ammonia water tank truck 5 through the ammonia water delivery pipeline 16, and the ammonia water delivery pump 6 is installed on the ammonia water delivery pipeline 16;
the tail gas absorption system comprises a tail gas absorption tank 4, a liquid collecting pump 7, two ammonia tail gas pipelines 18 and an ammonia water absorption liquid pipeline 21, the tail gas absorption tank 4 is connected with an ammonia water dilution conveying pipeline 14 through the ammonia water absorption liquid pipeline 21, the tail gas absorption tank 4 is connected with an ammonia water tank 2 through the ammonia tail gas pipeline 18, a liquid ammonia conveying pipeline 19 is connected with the tail gas absorption tank 4 through another ammonia tail gas pipeline 18, and the liquid collecting pump 7 is installed on the ammonia water absorption liquid pipeline 21.
The utility model discloses simple structure utilizes soft water preparation system and cooling system and liquid ammonia dilution system can directly carry out the dilution process of liquid ammonia, reduces the emergence that the aqueous ammonia leaked the problem simultaneously, has improved efficiency and stability and the security that the liquid ammonia diluted, can realize the preparation demand of large-traffic aqueous ammonia simultaneously, satisfies the use of production in-process aqueous ammonia in the enterprise, and is easy and simple to handle.
In the utility model, the material of the ammonia water tank 2 is stainless steel material or glass fiber reinforced plastic material, the material of the diluter 1 is 316L material, the circulating water return pipe 17 is respectively provided with a temperature sensor and a pressure sensor, the liquid ammonia conveying pipeline 19 and the soft water pipeline 13 are respectively provided with a flow sensor and a pressure sensor, the circulating water pipeline 15 and the ammonia water dilution conveying pipeline 14 are respectively provided with a temperature sensor, the ammonia water tank 2 is provided with a liquid level sensor, the circulating water pipeline 15 and the circulating water return pipe 17 are both provided with two stop valves for ammonia, the liquid ammonia conveying pipeline 19 is sequentially provided with a stop valve for ammonia, a pipeline filter, a check valve, a ball valve, an adjusting valve, a check valve and a ball valve, the nitrogen purging pipeline 20 is respectively provided with a check valve and a stop valve for ammonia, the ammonia water dilution conveying pipeline 14 is sequentially provided with a ball valve, an automatic back, install the ball valve in proper order on soft water pipeline 13, the check valve, the governing valve, the pipe-line filter, ball valve and stop valve for ammonia, install three stop valve for ammonia on the aqueous ammonia absorption liquid pipeline 21 in proper order, all install stop valve for ammonia on two ammonia tail gas pipelines 18, install stop valve for three ammonia on the aqueous ammonia pipeline 16, the utility model discloses simple structure utilizes soft water preparation system and cooling system and liquid ammonia dilution system can directly carry out the dilution process of liquid ammonia, reduces the emergence that the aqueous ammonia leaked the problem simultaneously, has improved efficiency and stability and the security that the liquid ammonia diluted, can realize the preparation demand of large-traffic aqueous ammonia simultaneously, satisfies the use of production in-process aqueous ammonia in the enterprise, and is easy and simple to handle.
The working principle is as follows: liquid ammonia is transported to a dilution system through a liquid ammonia tank car 8, the liquid ammonia is connected to a liquid ammonia unloading pump 10 through an unloading crane pipe 9, the liquid ammonia crane pipe 9 and the liquid ammonia unloading pump 10 are connected to a liquid ammonia inlet pipe opening of a diluter 1 through a liquid ammonia delivery pipeline 19, the adding amount of the liquid ammonia is adjusted and controlled through a valve, a pressure sensor and a flowmeter on the liquid ammonia delivery pipeline 19, after the liquid ammonia unloading is completed, the liquid ammonia unloading pipeline 19 is purged through nitrogen generated by a nitrogen unit 11, residual ammonia in the pipeline is purged into a tail gas absorption system, the liquid ammonia is contacted with soft water after entering the diluter 1, the soft water can absorb the liquid ammonia according to a certain proportion, the soft water is prepared through a soft water preparation system and stored into a soft water tank 3, the ammonia in the soft water tank 3 is delivered into the diluter 1 through a soft water pipeline 13 by using a soft water pump 12 in the system, the adding amount of the control liquid soft water is adjusted through a valve, a pressure sensor and a flowmeter on a soft water pipeline 13, the preparation concentration of ammonia water is controlled according to the adding proportion of the soft water and the liquid ammonia, ammonia water with the concentration of 5% -30% can be prepared, heat generated in the process that the soft water absorbs the liquid ammonia is cooled through cooling water in a diluter 1, the cooling water is connected to a pipe orifice on the diluter 1 through a circulating water inlet pipeline 15 and a circulating water outlet pipeline 17, temperature monitoring is carried out through a temperature sensor on the water inlet and outlet pipeline, the inlet water temperature of the cooling water is ensured to be 25-35 ℃, the outlet water temperature of the cooling water is 30-45 ℃, the cooling water is conveyed into an ammonia water tank 2 through an ammonia water dilution conveying pipeline 14 after the preparation of the ammonia water, the pressure balance in the ammonia water tank 2 is connected to a tail gas absorption tank 4 through an ammonia gas tail gas pipeline 18, the tail gas absorption tank 4 mainly absorbs ammonia gas remained in a liquid, play the effect that prevents the ammonia escape, absorption tank 4 absorbs the back to the ammonia, and the aqueous ammonia of production is saved in carrying aqueous ammonia jar 2 through album liquid pump 7, and album liquid pump 7 is connected through aqueous ammonia absorption liquid pipeline with aqueous ammonia jar 2, and the aqueous ammonia that aqueous ammonia jar 2 stored is carried to production ammonia feed water pipeline 24 or to the aqueous ammonia tank car 5 in through aqueous ammonia delivery pump 6.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. The utility model provides an aqueous ammonia preparation system for online dilution of liquid ammonia, is including unloading ammonia system, aqueous ammonia preparation system, cooling water system, soft water system, aqueous ammonia system and tail gas absorption system, its characterized in that, the aqueous ammonia preparation system includes diluter (1), it includes liquid ammonia tank wagon (8), unloading oil filling riser (9), liquid ammonia pump of unloading (10), nitrogen unit (11), nitrogen purging pipeline (20), liquid ammonia transfer line (19), liquid ammonia tank wagon (8) are connected with unloading oil filling riser (9), unloading oil filling riser (9) are connected with diluter (1) through liquid ammonia transfer line (19), nitrogen unit (11) are connected with liquid ammonia transfer line (19) through nitrogen purging pipeline (20), liquid ammonia pump of unloading (10) is installed on liquid ammonia transfer line (19);
the cooling water system comprises a circulating water pool (22), a circulating water inlet pipeline (15) and a circulating water return pipe (17), wherein the circulating water pool (22) is connected with the diluter (1) through the circulating water inlet pipeline (15) and the circulating water return pipe (17);
the water softening system comprises a water softening and making system (23), a water softening tank (3), a water softening pipeline (13) and a water softening pump (12), the water softening and making system (23) is communicated with the water softening tank (3), the water softening tank (3) is connected with the diluter (1) through the water softening pipeline (13), and the water softening pump (12) is installed on the water softening pipeline (13);
the ammonia water system comprises an ammonia water tank (2), an ammonia water tank truck (5), an ammonia water delivery pump (6), an ammonia water dilution delivery pipeline (14), an ammonia water delivery pipeline (16) and a production ammonia water supply pipeline (24), wherein the ammonia water tank (2) is connected with the diluter (1) through the ammonia water dilution delivery pipeline (14), the ammonia water tank (2) is respectively connected with the production ammonia water supply pipeline (24) and the ammonia water tank truck (5) through the ammonia water delivery pipeline (16), and the ammonia water delivery pump (6) is installed on the ammonia water delivery pipeline (16);
the tail gas absorption system comprises a tail gas absorption tank (4), a liquid collecting pump (7), two ammonia tail gas pipelines (18) and an ammonia water absorption liquid pipeline (21), wherein the tail gas absorption tank (4) is connected with an ammonia water dilution conveying pipeline (14) through the ammonia water absorption liquid pipeline (21), the tail gas absorption tank (4) is connected with an ammonia water tank (2) through the ammonia gas tail gas pipeline (18), the liquid ammonia conveying pipeline (19) is connected with the tail gas absorption tank (4) through another ammonia tail gas pipeline (18), and the liquid collecting pump (7) is installed on the ammonia water absorption liquid pipeline (21).
2. The ammonia water preparation system for online dilution of liquid ammonia according to claim 1, wherein the ammonia water tank (2) is made of stainless steel or glass fiber reinforced plastic.
3. An ammonia water preparation system for on-line dilution of liquid ammonia according to claim 1, wherein the diluter (1) is made of 316L material.
4. The ammonia water preparation system for online dilution of liquid ammonia according to claim 1, wherein a temperature sensor and a pressure sensor are respectively installed on the circulating water return pipe (17), a flow sensor and a pressure sensor are respectively installed on the liquid ammonia delivery pipeline (19) and the soft water pipeline (13), a temperature sensor is installed on the circulating water inlet pipeline (15) and the ammonia water dilution delivery pipeline (14), and a liquid level sensor is installed on the ammonia water tank (2).
5. The ammonia water preparation system for online dilution of liquid ammonia according to claim 1, wherein two stop valves for ammonia are installed on the circulating water inlet pipe (15) and the circulating water return pipe (17), a stop valve for ammonia, a pipe filter, a check valve, a ball valve, an adjusting valve, a check valve and a ball valve are installed on the liquid ammonia conveying pipeline (19) in sequence, a check valve and a stop valve for ammonia are installed on the nitrogen purging pipeline (20) respectively, and a ball valve, an automatic back pressure valve and a stop valve for ammonia are installed on the ammonia water dilution conveying pipeline (14) in sequence.
6. The ammonia water preparation system for online dilution of liquid ammonia according to claim 1, wherein the soft water pipeline (13) is sequentially provided with a ball valve, a check valve, a regulating valve, a pipeline filter, a ball valve and stop valves for ammonia, the ammonia water absorption liquid pipeline (21) is sequentially provided with three stop valves for ammonia, two ammonia tail gas pipelines (18) are respectively provided with a stop valve for ammonia, and the ammonia water conveying pipeline (16) is provided with three stop valves for ammonia.
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| CN202020592741.4U CN211998842U (en) | 2020-04-20 | 2020-04-20 | Ammonia water preparation system for online dilution of liquid ammonia |
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| CN202020592741.4U CN211998842U (en) | 2020-04-20 | 2020-04-20 | Ammonia water preparation system for online dilution of liquid ammonia |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299444A (en) * | 2020-10-14 | 2021-02-02 | 营口正源电力配套设备有限公司 | Mobile liquid ammonia recovery ammonia tank replacement equipment and method |
| CN115015151A (en) * | 2022-06-02 | 2022-09-06 | 大唐南京环保科技有限责任公司 | Ammonia spraying system and method for flue gas denitration evaluation device |
-
2020
- 2020-04-20 CN CN202020592741.4U patent/CN211998842U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112299444A (en) * | 2020-10-14 | 2021-02-02 | 营口正源电力配套设备有限公司 | Mobile liquid ammonia recovery ammonia tank replacement equipment and method |
| CN115015151A (en) * | 2022-06-02 | 2022-09-06 | 大唐南京环保科技有限责任公司 | Ammonia spraying system and method for flue gas denitration evaluation device |
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