CN110420535A - A kind of novel ammonia vapour condensate cooler and ammonia vapour condense cooling means - Google Patents
A kind of novel ammonia vapour condensate cooler and ammonia vapour condense cooling means Download PDFInfo
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- CN110420535A CN110420535A CN201910774776.1A CN201910774776A CN110420535A CN 110420535 A CN110420535 A CN 110420535A CN 201910774776 A CN201910774776 A CN 201910774776A CN 110420535 A CN110420535 A CN 110420535A
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- Prior art keywords
- ammonia vapour
- pregnant liquor
- phosphorus ammonium
- ammonia
- heat exchanging
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/002—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by condensation
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/002—Removal of contaminants
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10K—PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLE GASES CONTAINING CARBON MONOXIDE
- C10K1/00—Purifying combustible gases containing carbon monoxide
- C10K1/04—Purifying combustible gases containing carbon monoxide by cooling to condense non-gaseous materials
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
- F28D7/16—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged in parallel spaced relation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F11/00—Arrangements for sealing leaky tubes and conduits
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/0229—Double end plates; Single end plates with hollow spaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The present invention relates to a kind of novel ammonia vapour condensate coolers and ammonia vapour to condense cooling means, and novel ammonia vapour condensate cooler includes phosphorus ammonium pregnant liquor heat exchanging segment and ammonia vapour cooling section；Phosphorus ammonium pregnant liquor heat exchanging segment uses fixed tube-sheet exchanger structure, and ammonia vapour cooling section uses floating head type heat exchanger structure；The shell side of phosphorus ammonium pregnant liquor heat exchanging segment sets phosphorus ammonium pregnant liquor outlet and phosphorus ammonium pregnant liquor entrance, tube side set ammonia vapour entrance and ammonia vapor outlet；The shell side of ammonia vapour cooling section sets circulation water inlet and circulating water outlet, and tube side sets ammonium hydroxide outlet.The present invention integrates phosphorus ammonium pregnant liquor heat exchanging segment and ammonia vapour cooling section, and integral device uses vertical structure, and phosphorus ammonium pregnant liquor heat exchanging segment uses fixed tube-sheet exchanger structure, and ammonia vapour cooling section uses floating tubesheet heat exchanger structure, and the two shares an intermediate bobbin carriage；The present invention reduces equipment and process pipelines quantity, greatly reduce occupation area of equipment, save construction investment, improve rate of return on investment.
Description
Technical field
The present invention relates to a kind of gas condensation cooling device more particularly to a kind of novel ammonia vapour condensate cooler and ammonia vapour are cold
Solidifying cooling means.
Background technique
The anhydrous ammonia process of coke-stove gas ammonia recovery unit washes ammonia --- desorption --- process route of rectifying using phosphoric acid,
A large amount of ammonia vapour can be generated in the desorption process of phosphorus ammonium pregnant liquor, these ammonia vapour need cold by ammonia vapour before entering rectifying column
Solidifying cooler condenses ammonia vapour, and is cooled to suitable temperature, to guarantee the efficient stable of subsequent distillation operation.
Traditional ammonia vapour condenses cooling equipment and uses two equipment serial operations, cold comprising phosphorus ammonium pregnant liquor heat exchanger and ammonia vapour
But device, wherein phosphorus ammonium pregnant liquor heat exchanger preheats phosphorus ammonium pregnant liquor by the heat transfer of ammonia vapour to phosphorus ammonium pregnant liquor, saves desorption
Tower steam consumption；Ammonia vapour cooler carries out condensation cooling to ammonia vapour using recirculated water, condenses ammonia vapour, and be reduced to subsequent rectifying
Temperature needed for technique.But two equipment is concatenated the disadvantage is that occupied area is larger, and process pipelines arrangement is complicated, equipment investment
Greatly, cumbersome, reduce the overall economy quality of anhydrous ammonia process.
Summary of the invention
The present invention provides a kind of novel ammonia vapour condensate coolers and ammonia vapour to condense cooling means, by phosphorus ammonium pregnant liquor heat exchanging segment
It is integrated with ammonia vapour cooling section, integral device uses vertical structure, and phosphorus ammonium pregnant liquor heat exchanging segment uses fixed tube-sheet exchanger
Structure, ammonia vapour cooling section use floating tubesheet heat exchanger structure, and the two shares an intermediate bobbin carriage；The present invention reduces equipment and
Process pipelines quantity greatly reduces occupation area of equipment, saves construction investment, improves rate of return on investment.
In order to achieve the above object, the present invention is implemented with the following technical solutions:
A kind of novel ammonia vapour condensate cooler, including it is set up and down phosphorus ammonium pregnant liquor heat exchanging segment and ammonia vapour cooling section；
The phosphorus ammonium pregnant liquor heat exchanging segment uses fixed tube-sheet exchanger structure, and the ammonia vapour cooling section uses floating head type heat exchanger
Structure；The shell side of phosphorus ammonium pregnant liquor heat exchanging segment sets phosphorus ammonium pregnant liquor outlet and phosphorus ammonium pregnant liquor entrance, and tube side sets ammonia vapour entrance and ammonia vapour goes out
Mouthful；The shell side of ammonia vapour cooling section sets circulation water inlet and circulating water outlet, and tube side sets ammonium hydroxide outlet.
The phosphorus ammonium pregnant liquor heat exchanging segment by be integrated in from top to bottom heat exchange piece housing in upper tube box, top fixed tube sheet,
First heat-exchanging tube bundle and lower part fixed tube sheet composition；Ammonia vapour entrance is set at the top of upper header, top fixed tube sheet, lower part are fixed
Heat exchanging segment shell side space is collectively formed in tube sheet and heat exchange piece housing, and heat exchanging segment shell side sets the first heat-exchanging tube bundle, heat exchanging segment in space
The top side in shell side space sets phosphorus ammonium pregnant liquor outlet, and the bottom other side sets phosphorus ammonium pregnant liquor entrance；The piece housing that exchanges heat is solid to the lower part
The lower section for determining tube sheet extends, and centre is collectively formed in the upper fixed tube sheet of heat exchange piece housing, lower part fixed tube sheet and ammonia vapour cooling section
The top side of bobbin carriage, intermediate bobbin carriage sets ammonia vapor outlet；In first heat-exchanging tube bundle the both ends of each heat exchanger tube respectively with upper header,
Intermediate bobbin carriage connection.
In the phosphorus ammonium pregnant liquor heat exchanging segment, heat exchange piece housing is divided into upper housing and lower case, between upper housing and lower case
It is connected by FlexbleJoint.
Fixation of the support for novel ammonia vapour condensate cooler is set on the outside of the upper housing.
Phosphorus ammonium pregnant liquor inlet is corresponded in heat exchanging segment shell side space to set up defences punching.
The side of the top fixed tube sheet sets the first diffusion mouth, and L shape dispersing gas channel, L shape are set in the fixed tube sheet of top
Dispersing gas channel is made of vertical section and horizontal segment, and wherein the bottom of vertical section is connected to the top in heat exchanging segment shell side space, is erected
The top of straight section is connected to one end of horizontal segment, and the other end of horizontal segment is connected to the first diffusion mouth.
The ammonia vapour cooling section is by upper fixed tube sheet, the second heat-exchanging tube bundle, lower floating tubesheet, sleeve and flat head group
At fixed tube sheet is fixedly connected with the lower case of phosphorus ammonium pregnant liquor heat exchanging segment by flange, upper fixed tube sheet, lower floating pipe
Cooling section shell side space is collectively formed in plate and cooling piece housing, and the second heat-exchanging tube bundle, cooling section shell are set in cooling section shell side space
The top in journey space sets circulation water inlet, and lower part sets circulating water outlet；The bottom of lower floating tubesheet is fixedly connected with sleeve, sleeve
It is slidably connected between cooling piece housing, and passes through packing box seal sealing structure；The bottom of sleeve and the fixed company of flat head
It connects, lower tube box is collectively formed in lower floating tubesheet, sleeve and flat head, and ammonium hydroxide outlet is set on flat head；Second heat-exchanging tube bundle
In the both ends of each heat exchanger tube be connected to respectively with intermediate bobbin carriage, lower tube box.
The side of fixed tube sheet sets the second diffusion mouth, and L shape dispersing gas channel, the release of L shape are set in upper fixed tube sheet
Gas channel is made of vertical section and horizontal segment, and wherein the bottom of vertical section is connected to the top in cooling section shell side space, vertical section
Top be connected to one end of horizontal segment, the other end of horizontal segment is connected to the second diffusion mouth.
Ammonia vapour based on the novel ammonia vapour condensate cooler condenses cooling means, comprising:
1) the ammonia vapour that tower top is desorbed in anhydrous ammonia process system is entered the tube side of phosphorus ammonium pregnant liquor heat exchanging segment, phosphorus by ammonia vapour entrance
Ammonium rich solution is entered the shell side of phosphorus ammonium pregnant liquor heat exchanging segment by phosphorus ammonium pregnant liquor entrance；In phosphorus ammonium pregnant liquor heat exchanging segment, ammonia vapour and phosphorus ammonium pregnant liquor
Wall-type heat exchange is carried out, desorber is discharged by phosphorus ammonium pregnant liquor outlet after phosphorus ammonium pregnant liquor heating, the ammonia vapour part in tube side is cold
Solidifying, part on-condensible gas is discharged via ammonia vapor outlet；
2) the remaining ammonia vapour of phosphorus ammonium pregnant liquor heat exchanging segment and condensed ammonium hydroxide enter the tube side of ammonia vapour cooling section together, circulation
Water enters the shell side of ammonia vapour cooling section via circulation water inlet；In ammonia vapour cooling section, remaining ammonia vapour and recirculated water carry out dividing wall type
Heat exchange is all condensed into ammonium hydroxide, and ammonium hydroxide further cools down under the cooling of recirculated water, is finally discharged to ammonia vessel by ammonium hydroxide outlet,
Raw material as subsequent rectification section.
Compared with prior art, the beneficial effects of the present invention are:
Phosphorus ammonium pregnant liquor heat exchanging segment and ammonia vapour cooling section are integrated, integral device uses vertical structure, phosphorus ammonium pregnant liquor
Heat exchanging segment uses fixed tube-sheet exchanger structure, and ammonia vapour cooling section uses floating tubesheet heat exchanger structure, and the two shares in one
Between bobbin carriage；The present invention reduces equipment and process pipelines quantity, greatly reduce occupation area of equipment, save construction investment, improve
Rate of return on investment.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of novel ammonia vapour condensate cooler of the present invention.
In figure: I, phosphorus ammonium pregnant liquor heat exchanging segment, II, ammonia vapour cooling section, 1. ammonium hydroxide exports 2. flat head, 3. sleeve
4. on lower 5. circulating water outlet of floating tubesheet, 6. second heat-exchanging tube bundle 7. circulation water inlet 8. in fixed tube sheet 9.
Between 10. 13. support of ammonia vapor outlet 11. first heat-exchanging tube bundle, 12. FlexbleJoint of bobbin carriage, 14. phosphorus ammonium pregnant liquor export
15. 16. 17. first diffusion mouth of upper tube box, 18. top fixed tube sheet of ammonia vapour entrance, 19. heat exchanging segment shell side space
20. 21. phosphorus ammonium pregnant liquor entrance of impingement baffle, 22. 23. second diffusion mouth of lower part fixed tube sheet, 24. cooling section shell side space
25. 26. lower tube box of packing box seal structure
Specific embodiment
Specific embodiments of the present invention will be further explained with reference to the accompanying drawing:
As shown in Figure 1, a kind of novel ammonia vapour condensate cooler of the present invention, including it is set up and down phosphorus ammonium pregnant liquor
Heat exchanging segment I and ammonia vapour cooling section II；The phosphorus ammonium pregnant liquor heat exchanging segment I uses fixed tube-sheet exchanger structure, and the ammonia vapour is cold
But section II uses floating head type heat exchanger structure；The shell side of phosphorus ammonium pregnant liquor heat exchanging segment I sets phosphorus ammonium pregnant liquor outlet 14 and phosphorus ammonium is rich
Liquid entrance 21, tube side set ammonia vapour entrance 15 and ammonia vapor outlet 10；The shell side of ammonia vapour cooling section II sets circulation water inlet 7 and recirculated water
Outlet 5, tube side set ammonium hydroxide outlet 1.
The phosphorus ammonium pregnant liquor heat exchanging segment I by being integrated in the upper tube box 16 to exchange heat in piece housing, top fixing pipe from top to bottom
Plate 18, the first heat-exchanging tube bundle 11 and lower part fixed tube sheet 22 form；The top of upper header 16 sets ammonia vapour entrance 15, and top is fixed
Tube sheet 18, lower part fixed tube sheet 22 and heat exchange piece housing are collectively formed heat exchanging segment shell side space 19, in heat exchanging segment shell side space 19
If the first heat-exchanging tube bundle 11, the top side in heat exchanging segment shell side space 19 sets phosphorus ammonium pregnant liquor outlet 14, and the bottom other side sets phosphorus ammonium
Rich solution entrance 21；The exchange heat lower section of piece housing fixed tube sheet 22 to the lower part extends, heat exchange piece housing, lower part fixed tube sheet 22 and ammonia
Intermediate bobbin carriage 9 is collectively formed in the upper fixed tube sheet 8 of vapour cooling section II, and the top side of intermediate bobbin carriage 9 sets ammonia vapor outlet 10；First
The both ends of each heat exchanger tube are connected to upper header, intermediate bobbin carriage 9 respectively in heat-exchanging tube bundle 11.
In the phosphorus ammonium pregnant liquor heat exchanging segment I, heat exchange piece housing is divided into upper housing and lower case, between upper housing and lower case
It is connected by FlexbleJoint 12.
Fixation of the support 13 for novel ammonia vapour condensate cooler is set on the outside of the upper housing.
Punching 20 of setting up defences at phosphorus ammonium pregnant liquor entrance 21 is corresponded in heat exchanging segment shell side space 19.
The side of the top fixed tube sheet 18 sets the first diffusion mouth 17, and it is logical that L shape dispersing gas is set in top fixed tube sheet 18
Road, L shape dispersing gas channel are made of vertical section and horizontal segment, wherein the top of the bottom of vertical section and heat exchanging segment shell side space 19
Connection, the top of vertical section are connected to one end of horizontal segment, and the other end of horizontal segment is connected to the first diffusion mouth 17.
The ammonia vapour cooling section II is by upper fixed tube sheet 8, the second heat-exchanging tube bundle 6, lower floating tubesheet 4, sleeve 3 and flat cover envelope
First 2 composition, fixed tube sheet 8 are fixedly connected with the lower case of phosphorus ammonium pregnant liquor heat exchanging segment I by flange, upper fixed tube sheet 8,
Cooling section shell side space 24 is collectively formed with cooling piece housing in lower floating tubesheet 4, sets the second heat exchange in cooling section shell side space 24
Tube bank 6, the top in cooling section shell side space 24 set circulation water inlet 7, and lower part sets circulating water outlet 5；The bottom of lower floating tubesheet 4
It is fixedly connected, is slidably connected between sleeve 3 and cooling piece housing, and sealed by packing box seal structure 25 with sleeve 3；Sleeve
3 bottom is fixedly connected with flat head 2, and lower tube box 26, flat cover is collectively formed in lower floating tubesheet 4, sleeve 3 and flat head 2
Ammonium hydroxide outlet 1 is set on end socket 2；The both ends of each heat exchanger tube are connected to intermediate bobbin carriage 9, lower tube box 26 respectively in second heat-exchanging tube bundle 6.
The side of fixed tube sheet 8 sets the second diffusion mouth 23, and L shape dispersing gas channel, L shape are set in upper fixed tube sheet 8
Dispersing gas channel is made of vertical section and horizontal segment, and wherein the bottom of vertical section is connected to the top in cooling section shell side space 24,
The top of vertical section is connected to one end of horizontal segment, and the other end of horizontal segment is connected to the second diffusion mouth 23.
Ammonia vapour based on the novel ammonia vapour condensate cooler condenses cooling means, comprising:
1) the ammonia vapour that tower top is desorbed in anhydrous ammonia process system is entered the pipe of phosphorus ammonium pregnant liquor heat exchanging segment I by ammonia vapour entrance 15
Journey, phosphorus ammonium pregnant liquor are entered the shell side of phosphorus ammonium pregnant liquor heat exchanging segment I by phosphorus ammonium pregnant liquor entrance 21；In phosphorus ammonium pregnant liquor heat exchanging segment I, ammonia vapour and
Phosphorus ammonium pregnant liquor carries out wall-type heat exchange, desorber is discharged by phosphorus ammonium pregnant liquor outlet 14 after phosphorus ammonium pregnant liquor heating, in tube side
Ammonia vapour partial condensation, part on-condensible gas are discharged via ammonia vapor outlet 10；
2) the remaining ammonia vapour of phosphorus ammonium pregnant liquor heat exchanging segment I and condensed ammonium hydroxide enter the tube side of ammonia vapour cooling section II together,
Recirculated water enters the shell side of ammonia vapour cooling section II via circulation water inlet 7；In ammonia vapour cooling section II, remaining ammonia vapour and recirculated water into
Row wall-type heat exchange is all condensed into ammonium hydroxide, and ammonium hydroxide further cools down under the cooling of recirculated water, finally by 1 discharge of ammonium hydroxide outlet
Raw material to ammonia vessel, as subsequent rectification section.
A kind of novel ammonia vapour condensate cooler of the present invention, is integrated with I He of phosphorus ammonium pregnant liquor heat exchanging segment in the same device
II two parts of ammonia vapour cooling section, wherein phosphorus ammonium pregnant liquor heat exchanging segment I uses fixed tube-sheet exchanger structure, and phosphorus ammonium pregnant liquor flows through shell
Journey, ammonia steam flow is through tube side；Ammonia vapour cooling section II uses floating head type heat exchanger structure, and recirculated cooling water flows through shell side, ammonia vapour
Flow through tube side；Phosphorus ammonium pregnant liquor heat exchanging segment I and ammonia vapour cooling section II use flanged joint.
FlexbleJoint 12 is added in phosphorus ammonium pregnant liquor heat exchanging segment I and is used as temperature-compensating measure, under the use of ammonia vapour cooling section II
Floating tubesheet 4 is used as temperature-compensating measure, close using packing box seal structure 25 between lower floating tubesheet 4 and cooling piece housing
Envelope.
The ammonia vapour on Anhydrous ammonia desorption tower top is condensed into dense ammonia after a kind of novel ammonia vapour condensate cooler of the present invention
Water, the latent heat of release can preheat phosphorus ammonium pregnant liquor, reduce desorber bottom and heat steam consumption.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (9)
1. a kind of novel ammonia vapour condensate cooler, which is characterized in that including being set up and down phosphorus ammonium pregnant liquor heat exchanging segment and ammonia
Vapour cooling section；The phosphorus ammonium pregnant liquor heat exchanging segment uses fixed tube-sheet exchanger structure, and the ammonia vapour cooling section is using the pipe that floats
Plate heat exchanger structure；The shell side of phosphorus ammonium pregnant liquor heat exchanging segment sets phosphorus ammonium pregnant liquor outlet and phosphorus ammonium pregnant liquor entrance, tube side set ammonia vapour and enter
Mouth and ammonia vapor outlet；The shell side of ammonia vapour cooling section sets circulation water inlet and circulating water outlet, and tube side sets ammonium hydroxide outlet.
2. a kind of novel ammonia vapour condensate cooler according to claim 1, which is characterized in that the phosphorus ammonium pregnant liquor heat exchanging segment
By upper tube box, top fixed tube sheet, the first heat-exchanging tube bundle and the lower part fixed tube sheet being integrated in heat exchange piece housing from top to bottom
Composition；Ammonia vapour entrance is set at the top of upper header, top fixed tube sheet, lower part fixed tube sheet are collectively formed with heat exchange piece housing and change
Hot arc shell side space sets the first heat-exchanging tube bundle in heat exchanging segment shell side space, and it is rich that the top side in heat exchanging segment shell side space sets phosphorus ammonium
Liquid outlet, the bottom other side sets phosphorus ammonium pregnant liquor entrance；Exchange heat piece housing to the lower part fixed tube sheet lower section extend, heat exchanging segment shell
Intermediate bobbin carriage is collectively formed in the upper fixed tube sheet of body, lower part fixed tube sheet and ammonia vapour cooling section, and the top side of intermediate bobbin carriage is set
Ammonia vapor outlet；The both ends of each heat exchanger tube are connected to upper header, intermediate bobbin carriage respectively in first heat-exchanging tube bundle.
3. a kind of novel ammonia vapour condensate cooler according to claim 2, which is characterized in that the phosphorus ammonium pregnant liquor heat exchanging segment
In, heat exchange piece housing is divided into upper housing and lower case, is connected between upper housing and lower case by FlexbleJoint.
4. a kind of novel ammonia vapour condensate cooler according to claim 3, which is characterized in that set on the outside of the upper housing
Support is used for the fixation of novel ammonia vapour condensate cooler.
5. a kind of novel ammonia vapour condensate cooler according to claim 2, which is characterized in that heat exchanging segment shell side space
Interior corresponding phosphorus ammonium pregnant liquor inlet is set up defences punching.
6. a kind of novel ammonia vapour condensate cooler according to claim 2, which is characterized in that the top fixed tube sheet
Side sets the first diffusion mouth, L shape dispersing gas channel is set in the fixed tube sheet of top, the shape dispersing gas channel L is by vertical section and horizontal segment
Composition, wherein the bottom of vertical section is connected to the top in heat exchanging segment shell side space, and the top of vertical section and one end of horizontal segment connect
Logical, the other end of horizontal segment is connected to the first diffusion mouth.
7. a kind of novel ammonia vapour condensate cooler according to claim 1, which is characterized in that the ammonia vapour cooling section is by upper
Fixed tube sheet, the second heat-exchanging tube bundle, lower floating tubesheet, sleeve and flat head composition, fixed tube sheet and phosphorus ammonium pregnant liquor
The lower case of heat exchanging segment is fixedly connected by flange, and cooling is collectively formed in upper fixed tube sheet, lower floating tubesheet and cooling piece housing
Section shell side space sets the second heat-exchanging tube bundle in cooling section shell side space, and the top in cooling section shell side space sets circulation water inlet, under
Portion sets circulating water outlet；The bottom of lower floating tubesheet is fixedly connected with sleeve, is slidably connected between sleeve and cooling piece housing, and
Pass through packing box seal sealing structure；The bottom of sleeve is fixedly connected with flat head, lower floating tubesheet, sleeve and flat head
Lower tube box is collectively formed, ammonium hydroxide outlet is set on flat head；In second heat-exchanging tube bundle the both ends of each heat exchanger tube respectively with intermediate tube
Case, lower tube box connection.
8. a kind of novel ammonia vapour condensate cooler according to claim 7, which is characterized in that the one of fixed tube sheet
Side sets the second diffusion mouth, and L shape dispersing gas channel is set in upper fixed tube sheet, and L shape dispersing gas channel is made of vertical section and horizontal segment,
Wherein the bottom of vertical section is connected to the top in cooling section shell side space, and the top of vertical section is connected to one end of horizontal segment, water
The other end of flat section is connected to the second diffusion mouth.
9. the ammonia vapour based on novel ammonia vapour condensate cooler described in claim 1 condenses cooling means characterized by comprising
1) the ammonia vapour that tower top is desorbed in anhydrous ammonia process system is entered the tube side of phosphorus ammonium pregnant liquor heat exchanging segment by ammonia vapour entrance, and phosphorus ammonium is rich
Liquid is entered the shell side of phosphorus ammonium pregnant liquor heat exchanging segment by phosphorus ammonium pregnant liquor entrance；In phosphorus ammonium pregnant liquor heat exchanging segment, ammonia vapour and phosphorus ammonium pregnant liquor are carried out
Wall-type heat exchange is discharged into desorber by phosphorus ammonium pregnant liquor outlet after phosphorus ammonium pregnant liquor heating, the ammonia vapour partial condensation in tube side, portion
On-condensible gas is divided to be discharged via ammonia vapor outlet；
2) the remaining ammonia vapour of phosphorus ammonium pregnant liquor heat exchanging segment and condensed ammonium hydroxide enter the tube side of ammonia vapour cooling section, recirculated water warp together
Enter the shell side of ammonia vapour cooling section by circulation water inlet；In ammonia vapour cooling section, remaining ammonia vapour and recirculated water carry out wall-type heat exchange
It all is condensed into ammonium hydroxide, ammonium hydroxide further cools down under the cooling of recirculated water, ammonia vessel is finally discharged to by ammonium hydroxide outlet, as
The raw material of subsequent rectification section.
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| CN201910774776.1A CN110420535A (en) | 2019-08-21 | 2019-08-21 | A kind of novel ammonia vapour condensate cooler and ammonia vapour condense cooling means |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115608118A (en) * | 2022-12-05 | 2023-01-17 | 安徽普泛能源技术有限公司 | Composite absorption tower and absorption type carbon capture pressure increasing system and process |
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| JPS60126514A (en) * | 1983-10-03 | 1985-07-06 | エル・ウント・ツエ・シユタインミユラア・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Nox reducer functioning as preheating of air in combination |
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| CN105293524A (en) * | 2015-11-20 | 2016-02-03 | 薛斌 | Recovery system and process for waste heat in production of anhydrous ammonia from ammonium phosphate through ammonia washing |
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