CN105987634B - The supplementing device of water - Google Patents
The supplementing device of water Download PDFInfo
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- CN105987634B CN105987634B CN201510052241.5A CN201510052241A CN105987634B CN 105987634 B CN105987634 B CN 105987634B CN 201510052241 A CN201510052241 A CN 201510052241A CN 105987634 B CN105987634 B CN 105987634B
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Abstract
The present invention relates to a kind of supplementing device of water, mainly solve that adding for chilling tower water in ammoxidation reaction device existing in the prior art is unstable, and flowed fluctuation is big, cause chilling system fluctuation of service, neutralizer pH value is unstable, and ammonia neutralization is bad, the big problem of tower reactor level fluctuation.The present invention by using a kind of water supplementing device and replenishment method, include entrance, supplement water surge tank, supplement water out, make-up pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet from four-effect evaporator water, water from four-effect evaporator is introduced into supplement water surge tank, the water supplemented in water surge tank is added to the technical solution in chilling tower by make-up pump, it preferably solves the problems, such as this, can be used in ammoxidation reaction process units.
Description
Technical field
The present invention relates to a kind of supplementing devices of water.
Background technology
In ammoxidation of propylene reacts production acrylonitrile installation, the waste water for recycling tower reactor handles rear portion through four-effect evaporation
As the supplement water of chilling tower, a part carries out biochemical treatment.The liquid for supplementing water by four-effect evaporator come from four-effect evaporator
Position control is added directly into chilling tower, and the supplement of water will be due to the process condition of recycling tower reactor wastewater flow, quadruple effect, four
The liquid level of effect evaporator changes and fluctuates, and results in the flow of chilling tower supplement water and temperature change larger in this way, supplement
The fluctuation of water can cause chilling tower pH value unstable, and the neutralization of ammonia is bad and chilling tower tower reactor level fluctuation, influences chilling
The normal operating of tower.Therefore, stablize quadruple effect supplement water and be added to chilling tower, have for the even running of chilling tower and whole device
There is particularly significant meaning.
Document US3885928 describes recycling and the refining system of a kind of alkene nitrile, and the purpose of wherein emergency cooling process is a side
Reactor effluent is cooled to certain temperature by face, is on the other hand that unreacted ammonia and reaction generate in reactor effluent
Polymer and heavy impurity.Technical solution employed in the document is to use water and sulfuric acid as chilling liquid, aqueous, sour, polymerization
The bottoms of object and other impurity is discharged from chilling system.Liquid containing ammonium sulfate, heavy impurity, a small amount of lightweight have in these bottoms
Machine object and water.Since ammonia conversion ratio is uncontrolled, make to contain unreacted ammonia in reaction gas, unreacted ammonia is sent out with acrylonitrile
Raw reaction, reduces the refined recovery rate of acrylonitrile.It must quickly, thoroughly remove unreacted ammonia.
Invention content
The first technical problem to be solved by the present invention is to chilling in ammoxidation reaction device existing in the prior art
The supplementing device of tower water is unreasonable, and chilling tower amount of makeup water is unstable, causes chilling system fluctuation of service, neutralizer pH value is not
Stablize, ammonia neutralization is bad, the big problem of tower reactor level fluctuation, provides a kind of supplementing device of new water.The supplementing device
Stablize with makeup water stream amount, neutralizer pH value fluctuates small, tower reactor level stability, the steady advantage of chilling tower operation and control.
The second technical problem to be solved by the present invention is to chilling in ammoxidation reaction device existing in the prior art
The replenishment method of tower water is unreasonable, and chilling tower amount of makeup water is unstable, causes chilling system fluctuation of service, neutralizer pH value is not
Stablize, ammonia neutralization is bad, the big problem of tower reactor level fluctuation, provides a kind of replenishment method of new water.The replenishment method
Stablize with makeup water stream amount, neutralizer pH value fluctuates small, tower reactor level stability, the steady advantage of chilling tower operation and control.
One of to solve above-mentioned technical problem, the technical solution adopted by the present invention is as follows：A kind of supplementing device of water, including
Entrance, supplement water surge tank, supplement water out, make-up pump, make-up pump entrance, make-up pump from four-effect evaporator water
Outlet, chilling tower supplement water inlet, and entrance and supplement water out from four-effect evaporator water are connected with supplement water surge tank,
Supplement water out is connected with make-up pump entrance, and make-up pump outlet is connected with chilling tower supplement water inlet；
Flowmeter, regulating valve are set on make-up pump outlet line；It supplements water surge tank and liquid level gauge is set；
Wherein, chilling tower supplement water inlet is arranged at least one of the top, middle part, bottom of chilling tower position
It sets.
In above-mentioned technical proposal, preferred technical solution is that the water from four-effect evaporator includes coming from quadruple effect
At least one of evaporator lime set, four-effect evaporator raffinate.
In above-mentioned technical proposal, preferred technical solution is that the water in the supplement water surge tank includes coming from quadruple effect
Evaporator lime set, four-effect evaporator raffinate, desalted water, finished product tower bottoms, decyanation tower water layer, recycling tower top water layer, acetonitrile tower reactor
At least one of liquid, device recycling waste water, preferred scope include from four-effect evaporator lime set, four-effect evaporator raffinate, take off
At least one of brine, device recycling waste water.
In above-mentioned technical proposal, preferred technical solution is that the acid that chilling tower is added includes sulfuric acid, phosphoric acid, acetic acid, grass
At least one of acid, acrylic acid, formic acid, carbonic acid, preferred scope include at least one of sulfuric acid, phosphoric acid, acetic acid, oxalic acid；
PH detecting systems are arranged in chilling tower neutralizer；Chilling tower neutralizer pH controlling values are 3-6.5；Preferred scope is 3-5, more preferable model
It encloses for 3.5-4.5.
In above-mentioned technical proposal, preferred technical solution is, chilling tower supplement water inlet be included in chilling tower top, in
At least one of portion, bottom；Flowmeter, regulating valve are set on make-up pump outlet line；Liquid level gauge is arranged in surge tank.
In above-mentioned technical proposal, preferred technical solution is that the setting of chilling tower is made of nozzle by geometry arrangement
Multi-layer sprinkling layer, in spraying layer lower part, gas distributor, spraying layer top is arranged in reaction gas inlet for reaction gas inlet setting
Demister is set, and chilling tower supplements water inlet on demister plate top.
In above-mentioned technical proposal, preferred technical solution is that the spraying layer of chilling tower setting is 1~8 layer；Every layer of nozzle
Arrangement density is 1~4 nozzle/m2；The geometry of every layer of water-spraying fabric includes square, rectangle, equilateral triangle, concentric
At least one of circular ring shape；The nozzle includes at least one in hollow cone, solid-cone, screw type, air atomizing shower nozzle
Kind；Gas distributor pattern includes one kind in semicircle cast, pipe distributor, dendroid porous type, biserial vane type, foam removal
Device includes at least one of board-like demister, wire mesh demister, bubble cap tray, sieve plate, filler.
In above-mentioned technical proposal, preferred technical solution is that the geometry of every layer of water-spraying fabric includes square, rectangular
At least two kinds in shape, equilateral triangle, concentric circles annular；The nozzle includes hollow cone, solid-cone, screw type, air mist
Change at least two kinds in nozzle, demister includes at least two in board-like demister, wire mesh demister, bubble cap tray, sieve plate, filler
Kind.
In above-mentioned technical proposal, preferred technical solution is that demister is arranged above spraying layer, and demister is board-like removes
At least one of foam device, wire mesh demister, bubble cap tray, sieve plate, filler；Demister is the number of theoretical plate of bubble cap tray, sieve plate
Preferred scope is 1~5 piece, more preferably ranging from 1~2 piece；Demister is that the preferred scope of the number of theoretical plate of filler is 1~5 piece,
More preferably ranging from 1~2 piece.
To solve above-mentioned technical problem two, the technical solution adopted by the present invention is as follows：A kind of replenishment method of water uses
The replenishment method of the supplementing device of any one water described above, water includes following steps：
A) water from four-effect evaporator is charged first in supplement water surge tank；
B) the supplement water supplemented in water surge tank is added in chilling tower by make-up pump.
In above-mentioned technical proposal, preferred technical solution is that the water from four-effect evaporator includes coming from quadruple effect
At least one of evaporator lime set, four-effect evaporator raffinate.
In above-mentioned technical proposal, preferred technical solution is that the water in the supplement water surge tank includes coming from quadruple effect
Evaporator lime set, four-effect evaporator raffinate, desalted water, finished product tower bottoms, decyanation tower water layer, recycling tower top water layer, acetonitrile tower reactor
At least one of liquid, device recycling waste water, preferred scope include from four-effect evaporator lime set, four-effect evaporator raffinate, take off
At least one of brine, device recycling waste water.
In above-mentioned technical proposal, preferred technical solution is that the acid that chilling tower is added includes sulfuric acid, phosphoric acid, acetic acid, grass
At least one of acid, acrylic acid, formic acid, carbonic acid, preferred scope include at least one of sulfuric acid, phosphoric acid, acetic acid, oxalic acid；
PH detecting systems are arranged in chilling tower neutralizer；Chilling tower neutralizer pH controlling values are 3-6.5；Preferred scope is 3-5, more preferable model
It encloses for 3.5-4.5.
In above-mentioned technical proposal, preferred technical solution is that chilling tower sulphur ammonium weight concentration is in 12-22%, preferred scope
For 15-20%.
In above-mentioned technical proposal, preferred technical solution is that the setting of chilling tower is made of nozzle by geometry arrangement
Multi-layer sprinkling layer, in spraying layer lower part, gas distributor, spraying layer top is arranged in reaction gas inlet for reaction gas inlet setting
Demister is set, and chilling tower supplements water inlet on demister plate top.
In above-mentioned technical proposal, preferred technical solution is that the spraying layer of chilling tower setting is 1~8 layer；Every layer of nozzle
Arrangement density is 1~4 nozzle/m2；The geometry of every layer of water-spraying fabric includes square, rectangle, equilateral triangle, concentric
At least one of circular ring shape；The nozzle includes at least one in hollow cone, solid-cone, screw type, air atomizing shower nozzle
Kind；Gas distributor pattern includes one kind in semicircle cast, pipe distributor, dendroid porous type, biserial vane type, foam removal
Device includes at least one of board-like demister, wire mesh demister, bubble cap tray, sieve plate, filler.
In above-mentioned technical proposal, preferred technical solution is that demister is arranged above spraying layer, and demister is board-like removes
At least one of foam device, wire mesh demister, bubble cap tray, sieve plate, filler；Demister is the number of theoretical plate of bubble cap tray, sieve plate
Preferred scope is 1~5 piece, more preferably ranging from 1~2 piece；Demister is that the preferred scope of the number of theoretical plate of filler is 1~5 piece,
More preferably ranging from 1~2 piece.
To enter the total weight of the supplement water of chilling tower, four-effect evaporator water is added by the chilling tower supplement water inlet
Enter into chilling tower, 10~80wt% of water weight is always supplemented from four-effect evaporator water；Other are added in chilling tower and supplement
Water accounts for 20~90wt% of total supplement water weight.Preferred technical solution is that four-effect evaporator water is supplemented by the chilling tower
Water inlet is added in chilling tower, and 30~70wt% of water weight is always supplemented from four-effect evaporator water；Other are added to chilling
30~70wt% that water accounts for total supplement water weight is supplemented in tower
Include entrance, supplement water from four-effect evaporator water due to the supplementing device and replenishment method of the water of the present invention
Surge tank, supplement water out, make-up pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet, come from four
The entrance and supplement water out for imitating evaporator water are connected with supplement water surge tank, and supplement water out is connected with make-up pump entrance
It connects, make-up pump outlet is connected with chilling tower supplement water inlet.Setting presses geometry arrangement group by nozzle in chilling tower
At Multi-layer sprinkling layer, in spraying layer lower part, gas distributor, spraying layer is arranged in reaction gas inlet for reaction gas inlet setting
Demister is arranged in top, and the water from four-effect evaporator is charged first in supplement water surge tank, water will be supplemented by make-up pump
Supplement water in surge tank is added in chilling tower, ensure that the stabilization of chilling tower amount of makeup water, not only makes neutralizer pH value control
Make constant, the removal effect of ammonia is good, and chilling tower tower reactor level stability, and the operation of chilling tower operates steadily.
The present invention is suitable for adding for ammoxidation reaction device water, and exports reaction gas suitable for fluidized-bed reactor
Cooling, the neutralization of unreacted ammonia, be equally applicable in fluidized-bed reactor outlet reaction gas the catalyst fines carried secretly and
The high-efficient washing of heavy constituent.
Lime set from four-effect evaporator is charged first to supplement water surge tank by the supplementing device of water using the present invention
In, the supplement water supplemented in water surge tank is added to chilling tower bottom by make-up pump, the acid that chilling tower is added is sulfuric acid, in
With liquid pH controls 5,4 layers are arranged in chilling tower and presses square arrangement group by hollow cone nozzle 20% for sulphur ammonium weight concentration
At spraying layer, the arrangement density of nozzle is 2 nozzle/m2, dendroid porous type distributor is arranged in reaction gas inlet, through spray
The control of neutralizer pH value is stablized after leaching, and chilling tower tower reactor liquid level is steady, and the removal rate of ammonia reaches 99.9% in reaction gas, is obtained
Preferable technique effect.
Description of the drawings
Fig. 1 is the supplementing device schematic diagram of the water of the present invention；
1 is make-up pump in Fig. 1, and 2 be the entrance from four-effect evaporator water, and 3 export for make-up pump, and 4 be supplement water
Surge tank, 5 be supplement water inlet, and 6 be reaction gas outlet, and 7 be demister, and 8 be neutralizer spraying layer, and 9 supplement for chilling tower
Water inlet, 10 be neutralizer, and 11 be chilling tower, and 12 be reaction gas inlet.
The supplementing device technical process of the water of the present invention is as follows：Supplement water is introduced into slow to supplement water from supplement water inlet 5
It rushes in tank 4, through make-up pump 1 from the entrance 2 from four-effect evaporator water, make-up pump outlet 3, water inlet is supplemented from chilling tower
9 are added in chilling tower 11, and sulfuric acid is added in neutralising fluid 10, from the reaction gas of reaction gas inlet 12 with from spray
10 counter current contacting of neutralizer sprayed in layer 8 enters absorption system after demister 7 from reaction gas outlet 6.
Below by specific embodiment, the invention will be further elaborated.
Specific implementation mode
【Comparative example 1】
The chilling tower supplement water come from four-effect evaporator is added directly into chilling tower bottom, chilling tower reaction gas neutralizer
It is reacted with reaction gas counter current contacting, chilling tower tower reactor liquid level, chilling tower neutralizer pH value change with the fluctuation of supplement water, anxious
The neutralization of ammonia is incomplete in cold tower outlet gas phase, and the removal rate of ammonia reaches 95%, and unneutralized ammonia enters in follow-up system, has
The polymerization losses of machine object increases, and causes follow-up tower, heat exchanger, pipeline to block, influences the normal operation of device, shortens operation week
Phase.
【Comparative example 2】
It is added directly into the middle part of chilling tower from the chilling tower supplement water that four-effect evaporator comes, chilling tower reaction gas neutralizer
It is reacted with reaction gas counter current contacting, chilling tower tower reactor liquid level, chilling tower neutralizer pH value change with the fluctuation of supplement water, anxious
The neutralization of ammonia is incomplete in cold tower outlet gas phase, and the removal rate of ammonia reaches 94%, and unneutralized ammonia enters in follow-up system, has
The polymerization losses of machine object increases, and causes follow-up tower, heat exchanger, pipeline to block, influences the normal operation of device, shortens operation week
Phase.
【Embodiment 1】
Lime set from four-effect evaporator is charged first to supplement water surge tank by the supplementing device of water using the present invention
In, the supplement water supplemented in water surge tank is added to chilling tower bottom by make-up pump, the acid that chilling tower is added is sulfuric acid, in
With liquid pH controls 5,4 layers are arranged in chilling tower and presses square arrangement group by hollow cone nozzle 20% for sulphur ammonium weight concentration
At spraying layer, the arrangement density of nozzle is 2 nozzle/m2, dendroid porous type distributor is arranged in reaction gas inlet, through spray
The control of neutralizer pH value is stablized after leaching, and chilling tower tower reactor liquid level is steady, and the removal rate of ammonia reaches 99.9% in reaction gas, is obtained
Preferable technique effect.
【Embodiment 2】
A kind of supplementing device of water, include entrance from four-effect evaporator water, supplement water surge tank, supplement water out,
Make-up pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet, entrance from four-effect evaporator water and
Supplement water out with supplement water surge tank be connected, supplement water out be connected with make-up pump entrance, make-up pump export and
Chilling tower supplement water inlet is connected；Flowmeter, regulating valve are set on make-up pump outlet line；It supplements water surge tank and liquid is set
Position meter；The chilling tower supplement water inlet is arranged on the top and middle part of chilling tower.
The lime set of the four-effect evaporator of 95wt% is charged first to supplement water surge tank from surge tank supplement water inlet；By supplementing
The supplement water supplemented in water surge tank is added to from chilling tower supplement water inlet in the middle part of chilling tower by water pump；5wt% recycling waste waters
It is added directly into chilling tower bottom from the other supplement water inlet of chilling tower.
The acid that chilling tower is added is sulfuric acid, and 5, sulphur ammonium weight concentration is set 20% in chilling tower for neutralizer pH controls
4 layers of spraying layer being made of by square arrangement hollow cone nozzle are set, the arrangement density of nozzle is 2 nozzle/m2, reaction gas
Dendroid porous type distributor is arranged in entrance, and the neutralizer pH value control stabilization after spray, chilling tower tower reactor liquid level is steady, reaction
The removal rate of ammonia in gas reaches 99.7%.
【Embodiment 3】
The water replanishing device of the chilling tower of the present invention, including supplement water surge tank, surge tank supplement water inlet, surge tank supplement
Water out, make-up pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet I, chilling tower supplement water inlet
II, surge tank supplement water inlet and surge tank supplement water out with supplement water surge tank be connected, surge tank supplement water out and
Make-up pump entrance is connected, and make-up pump outlet is connected with chilling tower supplement water inlet I, and it is straight that chilling tower supplements water inlet II
It connects and is connected with chilling tower.
The slave surge tank supplement water inlet of the lime set of 40wt% four-effect evaporators is charged first to supplement water surge tank；By supplementing
The supplement water supplemented in water surge tank is added to from chilling tower supplement water inlet I in the middle part of chilling tower by water pump；60wt% desalted waters
It is added directly into chilling tower bottom from chilling tower supplement water inlet II.
The acid that chilling tower is added is sulfuric acid, and 4, sulphur ammonium weight concentration is set 18% in chilling tower for neutralizer pH controls
8 layers of spraying layer being made of by square arrangement hollow cone nozzle are set, the arrangement density of nozzle is 4 nozzle/m2,
In spraying layer lower part, gas distributor is arranged in reaction gas inlet, is set above spraying layer for reaction gas inlet setting
Demister is set, chilling tower supplements water inlet I on demister plate top.Flowmeter, regulating valve are set on make-up pump outlet line；
It supplements water surge tank and liquid level gauge is set.
Demister is bubble cap tray, and the preferred scope of the number of theoretical plate of sieve plate is 5 pieces；It is more that dendroid is arranged in reaction gas inlet
Pass distributor, the neutralizer pH value control stabilization after spray, chilling tower tower reactor liquid level is steady, the removal rate of ammonia in reaction gas
Reach 99.8%, achieves preferable technique effect.
【Embodiment 4】
Lime set from four-effect evaporator is charged first to supplement water surge tank by the supplementing device of water using the present invention
In, the supplement water supplemented in water surge tank is added to chilling tower bottom by make-up pump, the acid that chilling tower is added is sulfuric acid, in
With liquid pH controls 4,8 layers are arranged in chilling tower and presses square arrangement group by hollow cone nozzle 18% for sulphur ammonium weight concentration
At spraying layer, the arrangement density of nozzle is 4 nozzle/m2, setting flowmeter, regulating valve on make-up pump outlet line；It mends
Liquid level gauge is arranged in water-filling surge tank；The chilling tower supplement water inlet is arranged on the top and middle part of chilling tower.
Dendroid porous type distributor is arranged in reaction gas inlet, neutralizer pH value control stabilization, chilling tower after spray
Tower reactor liquid level is steady, and the removal rate of ammonia reaches 99.5% in reaction gas, achieves preferable technique effect.
【Embodiment 5】
Lime set from four-effect evaporator is charged first in supplement water surge tank, water surge tank will be supplemented by make-up pump
In supplement water be added to chilling tower bottom, the acid that chilling tower is added is sulfuric acid, and neutralizer pH controls are 4, sulphur ammonium weight concentration
18%, 8 layers of spraying layer being made of by square arrangement hollow cone nozzle are set in chilling tower, the arrangement density of nozzle is
4 nozzle/m2, setting flowmeter, regulating valve on make-up pump outlet line；It supplements water surge tank and liquid level gauge is set；Described
Chilling tower supplement water inlet is arranged on the top and middle part of chilling tower.
In spraying layer lower part, gas distributor is arranged in reaction gas inlet, is set above spraying layer for reaction gas inlet setting
Demister is set, chilling tower supplements water inlet on demister plate top.
Dendroid porous type distributor is arranged in reaction gas inlet, neutralizer pH value control stabilization, chilling tower after spray
Tower reactor liquid level is steady, and the removal rate of ammonia reaches 99.4% in reaction gas, achieves preferable technique effect.
【Embodiment 6】
The water replanishing device of the chilling tower of the present invention, including supplement water surge tank, surge tank supplement water inlet, surge tank supplement
Water out, make-up pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet I, chilling tower supplement water inlet
II, surge tank supplement water inlet and surge tank supplement water out with supplement water surge tank be connected, surge tank supplement water out and
Make-up pump entrance is connected, and make-up pump outlet is connected with chilling tower supplement water inlet I, and it is straight that chilling tower supplements water inlet II
It connects and is connected with chilling tower.
60wt% chilling towers supplement water and are charged first to supplement water surge tank from surge tank supplement water inlet；It will by make-up pump
Supplement water in supplement water surge tank is added to from chilling tower supplement water inlet I in the middle part of chilling tower；40wt% chilling towers supplement water
Another part from chilling tower supplement water inlet II be added directly into chilling tower bottom.
The acid that chilling tower is added is sulfuric acid, and 4, sulphur ammonium weight concentration is set 18% in chilling tower for neutralizer pH controls
8 layers of spraying layer being made of by square arrangement hollow cone nozzle are set, the arrangement density of nozzle is 4 nozzle/m2, reaction gas
Dendroid porous type distributor is arranged in entrance, and the neutralizer pH value control stabilization after spray, chilling tower tower reactor liquid level is steady, reaction
The removal rate of ammonia in gas reaches 99.4%, achieves preferable technique effect.
【Embodiment 7】
The water replanishing device of the chilling tower of the present invention, including supplement water surge tank, surge tank supplement water inlet, surge tank supplement
Water out, make-up pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet I, chilling tower supplement water inlet
II, surge tank supplement water inlet and surge tank supplement water out with supplement water surge tank be connected, surge tank supplement water out and
Make-up pump entrance is connected, and make-up pump outlet is connected with chilling tower supplement water inlet I, and it is straight that chilling tower supplements water inlet II
It connects and is connected with chilling tower.
70wt% chilling towers supplement water and are charged first to supplement water surge tank from surge tank supplement water inlet；It will by make-up pump
Supplement water in supplement water surge tank is added to from chilling tower supplement water inlet I in the middle part of chilling tower；30wt% chilling towers supplement water
Another part from chilling tower supplement water inlet II be added directly into chilling tower bottom.
The acid that chilling tower is added is sulfuric acid, and 4, sulphur ammonium weight concentration is set 18% in chilling tower for neutralizer pH controls
8 layers of spraying layer being made of by square arrangement hollow cone nozzle are set, the arrangement density of nozzle is 4 nozzle/m2,
In spraying layer lower part, gas distributor is arranged in reaction gas inlet, is set above spraying layer for reaction gas inlet setting
Demister is set, chilling tower supplements water inlet I on demister plate top.
Dendroid porous type distributor is arranged in reaction gas inlet, neutralizer pH value control stabilization, chilling tower after spray
Tower reactor liquid level is steady, and the removal rate of ammonia reaches 99.1% in reaction gas, achieves preferable technique effect.
Claims (14)
1. a kind of supplementing device of water includes entrance from four-effect evaporator water, supplement water surge tank, supplement water out, mends
Charging pump, make-up pump entrance, make-up pump outlet, chilling tower supplement water inlet, the entrance from four-effect evaporator water and benefit
Water-filling export with supplement water surge tank is connected, supplement water out be connected with make-up pump entrance, make-up pump outlet and suddenly
Cold tower supplement water inlet is connected；
Flowmeter, regulating valve are set on make-up pump outlet line；It supplements water surge tank and liquid level gauge is set；
Wherein, chilling tower supplement water inlet is arranged at the middle part and bottom of chilling tower；
Lime set from four-effect evaporator is charged first in supplement water surge tank, and the benefit in water surge tank will be supplemented by make-up pump
Water-filling is added to chilling tower bottom；Neutralizer pH controls are 5；Or
The slave surge tank supplement water inlet of the lime set of 40wt% four-effect evaporators is charged first to supplement water surge tank；By make-up pump
The supplement water supplemented in water surge tank is added to from chilling tower supplement water inlet I in the middle part of chilling tower；60wt% desalted waters are from urgency
Cold tower supplement water inlet II is added directly into chilling tower bottom；Neutralizer pH controls are 4；
The Multi-layer sprinkling layer that the chilling tower setting is made of nozzle by geometry arrangement, reaction gas inlet setting are being sprayed
Gas distributor is arranged in drenching layer lower part, reaction gas inlet, and demister is arranged above spraying layer, and chilling tower supplement water inlet I exists
Demister plate top.
2. the supplementing device of water according to claim 1, it is characterised in that the water from four-effect evaporator includes
From at least one of four-effect evaporator lime set, four-effect evaporator raffinate；PH detecting systems are arranged in chilling tower neutralizer；Chilling
The acid that tower is added is the one of which in sulfuric acid, phosphoric acid, acetic acid, oxalic acid, acrylic acid, formic acid, carbonic acid.
3. the supplementing device of water according to claim 2, it is characterised in that the acid that the chilling tower is added is sulfuric acid, phosphorus
One of which in acid, acetic acid, oxalic acid.
4. the supplementing device of water according to claim 1, it is characterised in that the water in the supplement water surge tank includes
From four-effect evaporator lime set, four-effect evaporator raffinate, desalted water, finished product tower bottoms, decyanation tower water layer, recycling tower top water layer,
At least one of acetonitrile tower bottoms, device recycling waste water.
5. the supplementing device of water according to claim 4, it is characterised in that the water in the supplement water surge tank includes
From at least one of four-effect evaporator lime set, four-effect evaporator raffinate, desalted water, device recycling waste water.
6. the supplementing device of water according to claim 1, it is characterised in that quality stream is arranged on make-up pump outlet line
Gauge, rotating regulation valve；It supplements water surge tank and gauge glass is set.
7. the supplementing device of water according to claim 1, it is characterised in that the spraying layer of the described chilling tower setting is 1~
8 layers；The arrangement density of every layer of nozzle is 1~4 nozzle/m2；The geometry of every layer of water-spraying fabric is square, rectangle,
One of which in equilateral triangle, concentric circles annular；The nozzle is hollow cone, solid-cone, screw type, air atomizing shower nozzle
In one of which；Gas distributor pattern is in semicircle cast, pipe distributor, dendroid porous type, biserial vane type
One of which, demister are the one of which in board-like demister, wire mesh demister, bubble cap tray, sieve plate.
8. a kind of replenishment method of water, using the supplementing device of any one water in claim 1~7, the replenishment method packet of water
Include following steps：
A) water from four-effect evaporator is charged first in supplement water surge tank；
B) the supplement water supplemented in water surge tank is added in chilling tower by make-up pump.
9. the replenishment method of water according to claim 8, it is characterised in that described to include from four-effect evaporator water
From at least one of four-effect evaporator lime set, four-effect evaporator raffinate；PH detecting systems are arranged in chilling tower neutralizer；Chilling tower
The acid of addition is the one of which in sulfuric acid, phosphoric acid, acetic acid, oxalic acid, acrylic acid, formic acid, carbonic acid；The addition of sulfuric acid is by chilling
The control adjustment of tower neutralizer pH value.
10. the replenishment method of water according to claim 9, it is characterised in that the acid that the chilling tower is added be sulfuric acid,
One of which in phosphoric acid, acetic acid, oxalic acid；Chilling tower sulphur ammonium weight concentration is in 12-22%.
11. the replenishment method of water according to claim 10, it is characterised in that chilling tower sulphur ammonium weight concentration is in 15-
20%.
12. the replenishment method of water according to claim 8, it is characterised in that the water in the supplement water surge tank includes
From four-effect evaporator lime set, four-effect evaporator raffinate, desalted water, finished product tower bottoms, decyanation tower water layer, recycling tower top water layer,
At least one of acetonitrile tower bottoms, device sewage.
13. the replenishment method of water according to claim 12, it is characterised in that the water packet in the supplement water surge tank
It includes from least one of four-effect evaporator lime set, four-effect evaporator raffinate, desalted water, device recycling waste water.
14. the replenishment method of water according to claim 9, it is characterised in that the spraying layer of the chilling tower setting is 1
~8 layers；The arrangement density of every layer of nozzle is 1~4 nozzle/m2；The geometry of every layer of water-spraying fabric is square, is rectangular
One of which in shape, equilateral triangle, concentric circles annular；The nozzle is hollow cone, solid-cone, screw type, air atomizing
One of which in nozzle；Gas distributor pattern is semicircle cast, pipe distributor, dendroid porous type, biserial vane type
In one of which, demister includes the one of which in board-like demister, wire mesh demister, bubble cap tray, sieve plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052241.5A CN105987634B (en) | 2015-01-31 | 2015-01-31 | The supplementing device of water |
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