CN209338134U - A kind of ammonia torch periodic off-gases recyclable device in Ammonia Production - Google Patents
A kind of ammonia torch periodic off-gases recyclable device in Ammonia Production Download PDFInfo
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- CN209338134U CN209338134U CN201822147069.3U CN201822147069U CN209338134U CN 209338134 U CN209338134 U CN 209338134U CN 201822147069 U CN201822147069 U CN 201822147069U CN 209338134 U CN209338134 U CN 209338134U
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Abstract
The utility model discloses the ammonia torch periodic off-gases recyclable devices in a kind of Ammonia Production, including washing ammonia tank, wash ammonia tank by it is lower and on be successively arranged liquid phase heat exchanger, packing layer, gas phase heat exchanger and demister, on washing ammonia tank there are also periodic off-gases import, periodic off-gases outlet, ammonium hydroxide outlet and water inlet；Periodic off-gases import is connected between liquid phase heat exchanger and gas phase heat exchanger, through periodic off-gases suction line with ammonia fire cabinet pipe network；Gas after washing dehydration is delivered to ammonia fire cabinet pipe network by gaseous phase outlet pipeline by periodic off-gases outlet；Ammonium hydroxide outlet, which is located at, to be washed ammonia pot bottom and is connect with ammonia recovery unit by outlet pipe, and equipped with aqua ammonia pump on outlet pipe；Water inlet is connected by boiler water pipeline, and spray head is equipped in ammonia tank washing, and the utility model can be realized for the timely and effective separation and recovery of gas ammonia in ammonia torch periodic off-gases.
Description
Technical field
The utility model belongs to chemical technology field, is related to a kind of periodic off-gases recyclable device, more particularly to a kind of synthesis
Ammonia torch periodic off-gases recyclable device in ammonia production.
Background technique
When synthetic ammonia installation operates normally, still there are the ammonia-containing gas of continued emissions, these gases master in ammonia torch pipe network
To come from following four:
(1) on-condensible gas that condenser system generates after the starting of normal pressure ammonia storage tank dropping equipment, ingredient are essentially pure ammonia；
(2) ammonia platform ammonia cistern car decompression gas is unloaded, after only unloading ammonia, the discharge gas that ammonia cistern car decompression can just generate,
Ingredient is largely N2, contain a small amount of ammonia；
(3) gas is discharged in the pressure release of room temperature ammonia storage tank, when room temperature ammonia pressure of storage tank is high, the gas that pressure release generates, and ingredient base
This is pure ammonia；
(4) row's noble gas body of ammonia refrigerating installation condenser system, lazy for lasting row, ingredient is essentially pure ammonia；
It is higher containing ammonia density in these gases, it is directly discharged into ammonia torch pipe network, through ammonia flare discharge into atmosphere.Ammonia fire
Although 30 meters high row is arranged in torch, summer ammonia torch periodic off-gases discharge amount is big, especially encounter overcast and rainy air pressure it is low when, neighbouring air
In ammonia content it is still very high.Not only environment near ammonia torch is polluted, while being also very big waste.
Summary of the invention
In order to solve the problems in the existing technology, the utility model discloses the ammonia torches in a kind of Ammonia Production
Periodic off-gases recyclable device can be realized for the timely and effective separation and recovery of gas ammonia in ammonia torch periodic off-gases.
The technical solution of the utility model is achieved in that
The utility model discloses the ammonia torch periodic off-gases recyclable devices in a kind of Ammonia Production, including wash ammonia tank, institute
State wash ammonia tank by it is lower and on be successively arranged liquid phase heat exchanger, packing layer, gas phase heat exchanger and demister, washed on ammonia tank also described
There are periodic off-gases import, periodic off-gases outlet, ammonium hydroxide outlet and water inlet；The periodic off-gases import is located at liquid phase heat exchanger and gas phase is changed
Between hot device, it is connected to by periodic off-gases suction line with ammonia fire cabinet pipe network；The periodic off-gases outlet, which is located at, washes ammonia tank top, passes through
Gas after washing dehydration is delivered to ammonia fire cabinet pipe network by gaseous phase outlet pipeline；Ammonium hydroxide outlet, which is located at, to be washed ammonia pot bottom and passes through
Outlet pipe is connect with ammonia recovery unit, and aqua ammonia pump is equipped on the outlet pipe；The water inlet is connected by boiler water pipeline
Connect, for wash in ammonia tank provide combined-circulation once-through boiler water, and it is described wash in ammonia tank be equipped with spray head, the spray head be located at periodic off-gases into
Between mouth and gas phase heat exchanger；Wherein, described filler layer is Intalox metal tower packing layer.
As a preferred implementation manner, on the outlet pipe along water (flow) direction be successively arranged aqua ammonia pump, pressure gauge and
Remote liquid level regulating valve is equipped with corresponding far transmission level meter in described wash on ammonia tank.
It is additionally provided with liquid return hole in described wash on ammonia tank as a preferred implementation manner, is connected by liquid back pipe and outlet pipe
It is logical.
Further, pressure gauge is equipped on the periodic off-gases suction line.
Preferably, the remote liquid level regulating valve is pneumatic operated valve, the remote liquid level is calculated as capillary liquid position meter；Described
Periodic off-gases suction line, gaseous phase outlet pipeline, outlet pipe, boiler water pipeline are equipped with the shut-off valve of gate valve class.
Ammonia torch periodic off-gases containing ammonia are entered by periodic off-gases import to be washed in the middle part of ammonia tank, in packing layer and spray
Boiler water counter current contacting is washed, and the gas after washing successively enters after the heat exchange of gas phase heat exchanger, demister cooling and dewatering
Ammonia torch pipe network；The ammonium hydroxide washed under the washing of ammonia tank is pumped into ammonia recovery unit with aqua ammonia pump, washes the liquid level of ammonia tank by remote liquid level tune
Valve control is saved, the ammonium hydroxide under portion washes can be back to wash ammonia tank progress secondary washing as needed.
The working process of the utility model is as follows: (1) it first establishes water circulation: specifically washing ammonia tank liquid phase and gas phase heat exchanger follows
After ring water comes into operation, is washed in ammonia tank, started using combined-circulation once-through boiler water inside ammonia recovery unit as washing water supplying by valve control
Aqua ammonia pump will wash ammonia tank constant liquid level by remote liquid level control valve；(2) progress ammonia is washed after water circulation is established, by ammonia torch
Periodic off-gases, which are gradually introduced, washes ammonia tank, and the gas after washing returns to ammonia torch pipe network；Ammonium hydroxide under washing is sent into flash steam scrubbing tower,
After heat exchanger heats up, rectifying column rectifying is eventually entered into, the liquefied ammonia that rectifying goes out is directly incorporated into ammonia pipe network, uses for rear system.
The utility model can be effectively separated after washing the gas ammonia in ammonia torch periodic off-gases, the ammonia under washing
After water is purified, qualified product liquefied ammonia is obtained.Washing the pure gas ammonia of ammonia tank entrance, outlet gas phase ammonia density can after washing separation
To control within 100mg/L.The discharge of gas ammonia in ammonia torch periodic off-gases is not only greatly reduced, but also by returning to ammonium hydroxide
It receives, liquefied ammonia yield 12t or so can be increased daily, create huge economic benefit.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is ammonia torch periodic off-gases recyclable device in the utility model embodiment；
In figure: 1, washing ammonia tank；2, liquid phase heat exchanger；3, Intalox metal tower packing layer；4, gas phase heat exchanger；5, demister；6, it speeds
Deflation suction line；7, gaseous phase outlet pipeline；8, aqua ammonia pump；9, boiler water pipeline；10, remote liquid level regulating valve；11, pressure
Table；12, pressure gauge；13, far transmission level meter.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
Every other embodiment obtained, fall within the protection scope of the utility model.
Embodiment
Ammonia torch periodic off-gases recyclable device in Ammonia Production as shown in Figure 1, including ammonia tank 1 is washed, it is described to wash ammonia tank 1
By it is lower and on be successively arranged liquid phase heat exchanger 2, gas phase heat exchanger 4, demister 5 and Intalox metal tower packing layer 3, wash ammonia tank 1 described
It is upper that there are also periodic off-gases import, periodic off-gases outlet, ammonium hydroxide outlet, water inlet and liquid return holes；The periodic off-gases import is changed positioned at liquid phase
Between hot device 2 and gas phase heat exchanger 4, it is connected to by periodic off-gases suction line 6 with ammonia fire cabinet pipe network, and in the periodic off-gases entrance
Pipeline is equipped with pressure gauge；The periodic off-gases outlet, which is located at, washes 1 top of ammonia tank, will be after washing dehydration by gaseous phase outlet pipeline 7
Gas be delivered to ammonia fire cabinet pipe network；Ammonium hydroxide outlet, which is located at, to be washed 1 bottom of ammonia tank and is connect by outlet pipe with ammonia recovery unit,
And it is successively arranged aqua ammonia pump 8, pressure gauge 11 and remote liquid level regulating valve 10 along water (flow) direction on the outlet pipe, it is washed described
Ammonia tank 1 is equipped with corresponding far transmission level meter 13；The water inlet is connected by boiler water pipeline 9, for mentioning to washing in ammonia tank 1
Spray head is equipped in ammonia tank 1 for combined-circulation once-through boiler water, and in described wash, the spray head be located at periodic off-gases import and gas phase heat exchanger 4 it
Between；Liquid return hole is connected to by liquid back pipe with outlet pipe.
Wherein, remote liquid level regulating valve 10 is pneumatic operated valve, and far transmission level meter 13 is capillary liquidometer；
On the periodic off-gases suction line, gaseous phase outlet pipeline, outlet pipe (2 " -150Lbs gate valve), boiler water pipeline
Shut-off valve equipped with gate valve class, specifically, the shut-off valve at the periodic off-gases suction line are 2 " -150Lbs gate valve, the gas
Shut-off valve at phase outlet line is 2 " -150Lbs gate valve, the shut-off valve of the water outlet pipe part are 2 " -150Lbs gate valve, it is described
Shut-off valve at boiler water pipeline is 1 " -150Lbs gate valve.
Ammonia torch periodic off-gases containing ammonia are entered by periodic off-gases import washes 1 middle part of ammonia tank, in Intalox metal tower packing layer 3
It is washed with the boiler water counter current contacting of spray, the gas after washing successively cools down through the heat exchange of gas phase heat exchanger 4, demister 5
Enter ammonia torch pipe network after dehydration；The ammonium hydroxide washed under ammonia tank 1 washs is pumped into ammonia with aqua ammonia pump 8 after the heat exchange of liquid phase heat exchanger 2
Recyclable device, the liquid level for washing ammonia tank 1 are controlled by remote liquid level regulating valve 10, can be back to portion of washing water wash as needed
Ammonia tank 1 carries out recycling.
Its course of work are as follows: (1) first establish water circulation: specifically washing 1 liquid phase of ammonia tank and gas phase heat exchanger recirculated water comes into operation
Afterwards, it is controlled by valve and is washed combined-circulation once-through boiler water inside ammonia recovery unit as washing water supplying in ammonia tank 1, start aqua ammonia pump 8,
It is constant that ammonia tank liquid 1 will be washed by remote liquid level regulating valve 10；(2) progress ammonia is washed after water circulation is established, by ammonia torch periodic off-gases
It is gradually introduced and washes ammonia tank 1, the gas after washing returns to ammonia torch pipe network；Ammonium hydroxide under washing is sent into flash steam scrubbing tower, passes through
After heat exchanger heating, rectifying column rectifying is eventually entered into, the liquefied ammonia that rectifying goes out is directly incorporated into ammonia pipe network, uses for rear system.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection scope within.
Claims (6)
1. the ammonia torch periodic off-gases recyclable device in a kind of Ammonia Production, it is characterised in that: described to wash ammonia tank including washing ammonia tank
By it is lower and on be successively arranged liquid phase heat exchanger, packing layer, gas phase heat exchanger and demister, wash on ammonia tank described there are also periodic off-gases
Import, periodic off-gases outlet, ammonium hydroxide outlet and water inlet；The periodic off-gases import be located at liquid phase heat exchanger and gas phase heat exchanger it
Between, it is connected to by periodic off-gases suction line with ammonia fire cabinet pipe network；The periodic off-gases outlet, which is located at, washes ammonia tank top, is gone out by gas phase
Gas after washing dehydration is delivered to ammonia fire cabinet pipe network by mouth pipeline；Ammonium hydroxide outlet, which is located at, to be washed ammonia pot bottom and passes through outlet pipe
It is connect with ammonia recovery unit, and is equipped with aqua ammonia pump on the outlet pipe；The water inlet is connected by boiler water pipeline, and
Described wash is equipped with spray head in ammonia tank, the spray head is located at the top of packing layer between gas phase heat exchanger.
2. the ammonia torch periodic off-gases recyclable device in Ammonia Production as described in claim 1, it is characterised in that: in the water outlet
It is successively arranged aqua ammonia pump, pressure gauge and remote liquid level regulating valve along water (flow) direction on pipe, is equipped with accordingly in described wash on ammonia tank
Far transmission level meter.
3. the ammonia torch periodic off-gases recyclable device in Ammonia Production as claimed in claim 2, it is characterised in that: wash ammonia described
It is additionally provided with liquid return hole on tank, is connected to by liquid back pipe with outlet pipe.
4. the ammonia torch periodic off-gases recyclable device as described in any in claim 1-3 in Ammonia Production, it is characterised in that:
The periodic off-gases suction line is equipped with pressure gauge.
5. the ammonia torch periodic off-gases recyclable device in Ammonia Production as claimed in claim 2, it is characterised in that: the teletransmission liquid
Position regulating valve is pneumatic operated valve, and the remote liquid level is calculated as capillary liquid position meter.
6. the ammonia torch periodic off-gases recyclable device in Ammonia Production as described in claim 1, it is characterised in that: described filler layer
For Intalox metal tower packing layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147069.3U CN209338134U (en) | 2018-12-20 | 2018-12-20 | A kind of ammonia torch periodic off-gases recyclable device in Ammonia Production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822147069.3U CN209338134U (en) | 2018-12-20 | 2018-12-20 | A kind of ammonia torch periodic off-gases recyclable device in Ammonia Production |
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| CN209338134U true CN209338134U (en) | 2019-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822147069.3U Active CN209338134U (en) | 2018-12-20 | 2018-12-20 | A kind of ammonia torch periodic off-gases recyclable device in Ammonia Production |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403054A (en) * | 2022-08-26 | 2022-11-29 | 河南中鸿集团煤化有限公司 | Ammonia-containing VOCs gas recovery system of ammonia synthesis device |
-
2018
- 2018-12-20 CN CN201822147069.3U patent/CN209338134U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115403054A (en) * | 2022-08-26 | 2022-11-29 | 河南中鸿集团煤化有限公司 | Ammonia-containing VOCs gas recovery system of ammonia synthesis device |
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