CN107934987B - Remove crystallization from washing formula ammonia condensation cooling device - Google Patents
Remove crystallization from washing formula ammonia condensation cooling device Download PDFInfo
- Publication number
- CN107934987B CN107934987B CN201711392594.5A CN201711392594A CN107934987B CN 107934987 B CN107934987 B CN 107934987B CN 201711392594 A CN201711392594 A CN 201711392594A CN 107934987 B CN107934987 B CN 107934987B
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- China
- Prior art keywords
- heat exchange
- unit
- ammonia water
- ammonia
- exchange tube
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910021529 ammonia Inorganic materials 0.000 title claims abstract description 25
- 238000009833 condensation Methods 0.000 title claims abstract description 25
- 230000005494 condensation Effects 0.000 title claims abstract description 25
- 238000001816 cooling Methods 0.000 title claims abstract description 22
- 238000002425 crystallisation Methods 0.000 title claims description 11
- 230000008025 crystallization Effects 0.000 title claims description 11
- 238000005406 washing Methods 0.000 title description 5
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims abstract description 71
- 235000011114 ammonium hydroxide Nutrition 0.000 claims abstract description 71
- 238000011010 flushing procedure Methods 0.000 claims abstract description 21
- 239000000498 cooling water Substances 0.000 claims abstract description 20
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 10
- 239000007921 spray Substances 0.000 claims abstract description 10
- 239000013078 crystal Substances 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims description 20
- 238000005507 spraying Methods 0.000 claims description 18
- 230000000694 effects Effects 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 1
- 230000000630 rising effect Effects 0.000 claims 1
- 125000004122 cyclic group Chemical group 0.000 abstract description 2
- 238000009434 installation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 7
- 239000000571 coke Substances 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000012266 salt solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/022—Preparation of aqueous ammonia solutions, i.e. ammonia water
-
- 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
-
- 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
- F28D7/06—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 having a single U-bend
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to a crystallization-removing self-flushing ammonia condensation cooling device, which comprises a plurality of unit devices, a standby pump and a circulating ammonia water pipe, wherein cooling water heat exchange pipelines among the unit devices are mutually communicated, shells of the unit devices are mutually communicated, an inlet of the standby pump is connected with the unit device at the tail end, and an outlet of the standby pump is connected with a spray pipe of the first unit device at the upper end through the circulating ammonia water pipe. The invention can realize that ammonia gas is condensed into ammonia water, and simultaneously, the condensed ammonia water is utilized to self-rinse the heat exchange tube to remove ammonium salt crystals attached to the heat exchange tube, and the condensed ammonia water can be recycled. The device has the advantages of high condensation efficiency, self-flushing of ammonia water, cyclic utilization, stable operation, no need of shutdown maintenance, convenient installation and adjustment and the like.
Description
Technical Field
The invention relates to the technical field of chemical industry, in particular to a crystallization-removing self-flushing ammonia condensation cooling device.
Background
In the coking industry, raw coke oven gas contains more gaseous impurities, wherein the ammonia gas contains more ammonia gas, and meanwhile, the raw coke oven gas also contains impurity gases such as hydrogen sulfide, hydrogen cyanide and the like, when the raw coke oven gas is purified, the raw coke oven gas is washed, the washed waste liquid contains a large amount of ammonia gas and ammonium salt solution, and after ammonia distillation and separation, ammonia vapor is subjected to effective cooling and condensation to obtain high-purity ammonia water.
Disclosure of Invention
The invention aims to provide a crystallization-removing self-flushing ammonia condensation cooling device which can realize that ammonia is condensed into an ammonia water state, and simultaneously, the condensed ammonia water is utilized to self-flush a heat exchange tube to remove ammonium salt crystals attached to the heat exchange tube, so that the condensed ammonia water can be recycled.
In order to achieve the above purpose, the invention is realized by adopting the following technical scheme:
the utility model provides a remove crystallization from washing formula ammonia condensation cooling device, includes a plurality of unit equipment, reserve pump, circulating ammonia water pipe, and the cooling water heat transfer pipeline between the unit equipment communicates each other, communicates each other between the casing of unit equipment, and the last unit equipment of the import connection of reserve pump, the shower pipe of the first unit equipment of upper end is connected through circulating ammonia water pipe to the export of reserve pump.
In the unit equipment, a liquid distribution disc is arranged in a plurality of unit equipment from the second unit equipment downwards.
The liquid distribution plate is formed by combining four side plates and a bottom distribution plate in a sealing mode, the heights of the four side plates are 20-200 mm, and the bottom distribution plate is uniformly provided with a plurality of spraying holes.
In the unit equipment, a baffle plate is arranged in a plurality of unit equipment from the third unit equipment downwards.
The baffle plate is provided with a concave notch, a round hole for the heat exchange tube to pass through and a unilateral arc notch.
The number of the unit devices is 4, the outer diameter sizes of the cooling water heat exchange pipelines are sequentially reduced from top to bottom, the outer diameter size of the heat exchange pipe of the first unit device at the upper end is phi 57mm, and the center distance of the heat exchange pipes is more than or equal to 72 mm-100 mm; the outer diameter of the heat exchange tube of the second unit equipment is phi 38mm, and the center distance of the heat exchange tube is more than or equal to 48 mm-90 mm; the outer diameter of the heat exchange tube of the third unit equipment is phi 25mm, and the center distance of the heat exchange tube is more than or equal to 44 mm-70 mm; the outer diameter of the heat exchange tube of the fourth unit equipment is phi 19mm, and the center distance of the heat exchange tube is more than or equal to 25 mm-60 mm.
The lower side of the spraying pipe is uniformly and symmetrically provided with a plurality of spraying holes with the diameter of phi2 mm-phi 20mm, and the spraying pipe is arranged at the top of the uppermost unit equipment.
Compared with the prior art, the invention has the beneficial effects that:
The utility model provides a remove crystallization from washing formula ammonia condensation cooling device, can realize that ammonia condenses into the aqueous ammonia state, utilizes the aqueous ammonia of condensation to wash the heat exchange tube certainly simultaneously, gets rid of the ammonium salt crystal that adheres to on the heat exchange tube, and the aqueous ammonia of condensation can recycle. The device has the advantages of high condensation efficiency, self-flushing of ammonia water, cyclic utilization, stable operation, no need of shutdown maintenance, convenient installation and adjustment and the like.
The invention utilizes the condensed ammonia water to be evenly distributed and then washes the heat exchange tube, and utilizes the pressure balance principle of equipment to dissolve the crystallized ammonium salt by immersing the ammonia water; intermittently or continuously utilizing dynamic pressure potential energy of equipment, washing crystallized ammonium salt by circulating ammonia water, removing ammonium salt crystals attached to a heat exchange tube, realizing high-efficiency heat transfer and obtaining qualified ammonia water products.
Drawings
FIG. 1 is a schematic diagram of a crystallization-removing self-flushing type ammonia condensing and cooling device according to the present invention.
FIG. 2 is a schematic view of a fluid distribution tray in accordance with the present invention.
FIG. 3 is a schematic view of a baffle in accordance with the present invention.
In the figure: 1-ammonia gas inlet; 2-tube plate; 3-a cooling water outlet; 4-a tube box; 5-first unit equipment at the upper end and 6-separation partition boards; 7-a second unit device; 8-a third unit device; 9-fourth unit devices; 10-cooling water inlet; 11-ammonia water outlet; 12-a backup pump; 13-circulating ammonia water pipes, 14-baffle plates, 14-1 single-side arc-shaped notches, 14-2 concave notches, 14-3 round holes, 15-liquid distribution plates, 15-1 side plates, 15-2 bottom distribution plates, 15-3 spray holes, 16-heat exchange pipes, 17-shells and 18-spray pipes.
Detailed Description
The following is a further description of embodiments of the invention, taken in conjunction with the accompanying drawings:
referring to fig. 1, a crystallization-removing self-flushing ammonia condensation cooling device comprises a plurality of unit devices, a standby pump 12 and a circulating ammonia water pipe 13, wherein cooling water heat exchange pipelines among the unit devices are mutually communicated, a shell 17 of the unit devices is mutually communicated, an inlet of the standby pump 12 is connected with the unit device at the tail end, and an outlet of the standby pump 12 is connected with a spray pipe 18 of the first unit device 5 at the upper end through the circulating ammonia water pipe 13.
In the unit devices described, a liquid distribution tray 15 is provided in several unit devices down from the second unit device 7.
Referring to fig. 2, the liquid distribution plate 15 is formed by combining four side plates 15-1 and a bottom distribution plate 15-2 in a sealing manner, the heights of the four side plates 15-1 are 20 mm-200 mm, and the bottom distribution plate 15-2 is uniformly provided with a plurality of spraying holes 15-3 with the diameter of phi 1 mm-phi 20 mm. The spacing of the spray holes 15-3 ranges from 100mm to 600mm.
In the unit devices, a baffle plate 14 is arranged in a plurality of unit devices from the third unit device 8 downwards.
Referring to fig. 3, the baffle 14 is provided with a concave notch 14-2, a round hole 14-3 for the heat exchange tube to pass through, and a single-side arc notch 14-1. The concave indentations 14-2 provide through passages for the liquid distribution tray 15, and the single-sided arcuate indentations 14-1 provide for baffling the passage of ammonia gas and ammonia water mixture.
The number of the unit devices is 4, the outer diameter sizes of the cooling water heat exchange pipelines are sequentially reduced from top to bottom, and the heat exchange pipes 16 are arranged in a mode of penetrating through the pipe plates 2 and communicating with the pipe boxes 4 on two sides of the separation partition plates 6. The outer diameter of the heat exchange tube 16 of the first unit device 4 at the upper end is phi 57mm, and the center distance of the heat exchange tube 16 is more than or equal to 72 mm-100 mm; the outer diameter of the heat exchange tube 16 of the second unit equipment 7 is phi 38mm, and the center distance of the heat exchange tube 16 is more than or equal to 48 mm-90 mm; the outer diameter size of the heat exchange tube 16 of the third unit equipment 8 is phi 25mm, and the center distance of the heat exchange tube 16 is more than or equal to 44 mm-70 mm; the outer diameter of the heat exchange tube 16 of the fourth unit equipment 9 is phi 19mm, and the center distance of the heat exchange tube 16 is more than or equal to 25 mm-60 mm.
The lower side of the spraying pipe 18 is uniformly and symmetrically provided with a plurality of spraying holes with the diameter of phi 2mm to phi 20mm, and the spraying pipe is arranged at the top of the uppermost unit equipment.
The invention comprises four unit devices, a standby pump 12 and a circulating ammonia water pipe 13; the four unit devices comprise a tube box 4, a heat exchange tube 16, a separation partition plate 6, a shell 17 and an inlet and outlet connecting tube, the heat exchange tube 16 is arranged in the shell 17, the tube box 4 is arranged at one end of the shell 17, one end of the heat exchange tube 16 extends out of the tube box 4, the separation partition plate 6 divides the tube box 4 into two parts, the tube boxes 4 of the four unit devices are mutually communicated through the inlet and outlet connecting tube, a cooling water inlet 10 is arranged at the bottom of the tube box 4 of the fourth unit device 9, and a cooling water outlet 3 is arranged at the upper end of the tube box 4 of the first unit device 5 at the upper end.
The upper end of the first unit equipment 5 at the upper end is provided with an ammonia gas inlet 1, and the lower end of the unit equipment at the lowest end is provided with an ammonia water outlet 11.
The first unit equipment 5 at the upper end is internally provided with a spray pipe 18, the second unit equipment 7 is internally provided with a liquid distribution disk 15, and the third and fourth unit equipment (8 and 9) are internally provided with a baffle plate 14 and the liquid distribution disk 15. The ammonia gas sequentially flows through the shell passes of the first unit equipment 5, the second unit equipment 7, the third unit equipment 8 and the fourth unit equipment 9 at the upper end from top to bottom, the condensed ammonia gas is changed into ammonia water and is discharged from an ammonia water outlet 11; the cooling water flows through the fourth unit equipment 9, the third unit equipment 8, the second unit equipment 7 and the inside of the pipe box 4 and the heat exchange pipe 16 of the upper first unit equipment 5 from bottom to top in sequence, and flows out from the cooling water outlet 3. The device is a composite heat transfer flow of countercurrent heat exchange and cross-flow heat exchange.
The lower end of the circulating ammonia water pipe 13 is communicated with the bottom of the shell 17 of the fourth unit device 9, the upper end of the circulating ammonia water pipe 13 is communicated with the spray pipe 18 at the upper part of the shell 17 of the first unit device 5 at the upper end, circulating ammonia water is conveyed in the circulating ammonia water pipe 13 in a pressurized mode through the standby pump 12, the purpose that ammonia water of the fourth unit device 9 is conveyed to the spray pipe 18 of the first unit device 5 at the upper end in a circulating mode to be sprayed is achieved, and the sprayed circulating ammonia water washes the outer walls of the heat exchange pipes 16 of all units from top to bottom.
The invention provides a crystallization-removing self-flushing ammonia condensation cooling device, which comprises the following working processes: the nearly saturated ammonia steam enters the shell 17 of the first unit equipment 5 at the upper end of the ammonia condensing and cooling device from the ammonia inlet 1, uniformly flows through the spraying pipe 18 and the shell side heat exchange pipe of the first unit equipment 5 at the upper end, the spraying pipe 18 can intermittently or continuously spray circulating ammonia water with low temperature, and cooling water uniformly flows in the heat exchange pipe 16 of the first unit equipment 5 at the upper end, so that the ammonia steam is partially and rapidly condensed to separate out the ammonia water under the cooling action of the circulating ammonia water and the heat exchange pipe 16, is converged with the circulating ammonia water, and is dripped into the heat exchange pipe 16 at the lower layer by layer on the outer wall of the heat exchange pipe 16, and self-washes equipment components in the first unit equipment 5 at the upper end. The collected ammonia water continuously flows downwards to the inlet of the shell 17 of the second unit equipment 7, the top of the shell 17 of the second unit equipment 7 is provided with a liquid distribution disc 15 for uniformly distributing the ammonia water flowing down from the first unit equipment 5 at the upper end, the distributed ammonia water continuously drops to the heat exchange tube 16 in the shell 17 of the second unit equipment 7, and due to the cooling effect of the cooling water flowing in the heat exchange tube 16 of the second unit equipment 7, the materials conveyed by the first unit equipment 5 at the upper end are the mixture of ammonia gas and ammonia water, the ammonia gas is condensed at the middle part, the ammonia gas condensation is slower, the liquid drops attached to the heat exchange tube 16 easily form high-concentration ammonium salt, crystallization is generated, and the liquid flowing down after being distributed by the liquid distribution disc 15 washes the heat exchange tube 16 in the shell 17 of the second unit equipment 7, so that equipment components in the second unit equipment 7 are flushed. Ammonia water and uncondensed ammonia in the second unit equipment 7 continuously flow to an inlet pipe of the third unit equipment 8 after being collected through an ammonia water outlet pipe, ammonia water is uniformly distributed again through a liquid distribution disc 15 in a shell 17 of the third unit equipment 8, further condensation of the ammonia water is realized under the cooling effect of the heat exchange pipe 16, as the volume is reduced after gas is condensed into liquid, a baffle plate 14 is arranged in the shell 17 of the third unit equipment 8 and used for improving the flow rate of uncondensed ammonia water passing through the outer side of the heat exchange pipe 16 to strengthen heat transfer, meanwhile, the baffle plate 14 is provided with a passage-concave notch 14-2 of the liquid distribution disc 15, a circular hole 14-3 passing through the heat exchange pipe 16 and an arched notch 14-1 for baffling, which is used for realizing ammonia condensation in the shell 17 of the third unit equipment 8, and due to the baffling effect of the baffle plate 14, the outlet on two sides flows out to the lower fourth unit equipment 9, ammonia water is uniformly distributed under the effect of the liquid distribution disc 15, the crystallization of the outer wall of the heat exchange pipe 16 is flushed, the ammonia water flows under the baffling effect of the heat exchange pipe 16, and the condensed ammonia water is finally cooled, the condensation effect is improved, and the condensation effect of the ammonia water is realized, and the condensation effect is improved.
The cooling water medium used in the invention enters the device from the cooling water inlet 10 of the fourth unit equipment 9 at the lower part, flows upwards in a countercurrent way, sequentially passes through the lower stroke of the fourth unit equipment 9 tube box 4, the fourth unit equipment 9 heat exchange tube 16, the upper stroke of the fourth unit equipment 9 tube box 4, the lower stroke of the third unit equipment 8 tube box 4, the third unit equipment 8 heat exchange tube 16, the upper stroke of the third unit equipment 8 tube box 4, the lower stroke of the second unit equipment 7 tube box 4, the second unit equipment 7 heat exchange tube 16, the upper stroke of the second unit equipment 7 tube box 4, the upper first unit equipment 5 heat exchange tube 16 and the upper first unit equipment 5 tube box 4, and is discharged from the cooling water outlet 3, thereby realizing countercurrent condensation cooling of ammonia gas. Meanwhile, as the ammonia gas has phase change from gas phase to liquid phase in the condensation process, the volume is reduced, and therefore, the heat exchange tubes with gradually smaller sizes and the tube spacing are used for enhancing the performance of the heat transfer and lifting device.
In order to improve the equipment performance, the invention can close the ammonia water discharge of the ammonia water outlet 11, ammonia gas in the shells 17 of the four unit equipment is continuously condensed, the ammonia water gradually rises from bottom to top in the shells 17 of the four unit equipment, the heat exchange tube 16 attached with crystallization is immersed in the ammonia water, the ammonium salt crystallized is dissolved and removed, the self-flushing of the device is realized, and the ammonia water is discharged from the outlet after flushing. The device can also intermittently or continuously utilize the standby pump 12 to convey the ammonia water of the fourth unit equipment 9 into the spraying pipe 18 of the first unit equipment 5 at the upper end through the circulating ammonia water pipe 13 for spraying and flushing the ammonia water, so as to strengthen the self-flushing crystallization removal effect.
The above description is only the basic principle of the present invention, and is not limited in any way, and all modifications of equivalent variations and modifications of the shape according to the present invention are within the scope of the technical protection scheme of the present patent.
Claims (5)
1. The crystallization-removing self-flushing ammonia condensation cooling device is characterized by comprising a plurality of unit devices, a standby pump and a circulating ammonia water pipe, wherein cooling water heat exchange pipelines among the unit devices are communicated with each other, shells of the unit devices are communicated with each other, an inlet of the standby pump is connected with the unit device at the tail end, and an outlet of the standby pump is connected with a spraying pipe of the unit device at the top end through the circulating ammonia water pipe;
In the unit equipment, a plurality of unit equipment downward from the second unit equipment are provided with liquid distribution discs;
a baffle plate is arranged in a plurality of unit devices downward from the third unit device;
the number of the unit devices is 4, and the outer diameter sizes of the cooling water heat exchange pipelines are sequentially reduced from top to bottom;
the self-flushing method of the self-flushing ammonia condensation cooling device for removing crystallization comprises the following steps: closing ammonia water discharge of an ammonia water outlet, continuously condensing ammonia water in the shells of the four unit devices, gradually rising the liquid level of the ammonia water in the shells of the four unit devices from bottom to top, immersing a heat exchange tube attached with crystallization in the ammonia water, dissolving to remove crystallized ammonium salt, realizing self-flushing of the device, and discharging the ammonia water from the outlet after flushing;
the ammonia water of the fourth unit equipment is intermittently or continuously conveyed into a spraying pipe of the first unit equipment at the upper end through a circulating ammonia water pipe by using a standby pump to spray and rinse the ammonia water, so that the self-rinsing crystallization removal effect is enhanced;
The four unit devices comprise a tube box, a heat exchange tube, a separation baffle, a shell and an inlet and outlet connecting tube, wherein the heat exchange tube is arranged in the shell, one end of the shell is provided with the tube box, one end of the heat exchange tube extends out of the tube box, the separation baffle divides the tube box into two parts, the tube boxes of the four unit devices are mutually communicated through the inlet and outlet connecting tube, the bottom of the tube box of the fourth unit device is provided with a cooling water inlet, and the upper end of the tube box of the first unit device at the upper end is provided with a cooling water outlet;
the upper end of the first unit equipment at the upper end is provided with an ammonia gas inlet, and the lower end of the unit equipment at the lowest end is provided with an ammonia water outlet.
2. The crystallization-removing self-flushing ammonia condensing and cooling device according to claim 1, wherein the liquid distribution plate is formed by combining four side plates and a bottom distribution plate in a sealing manner, the heights of the four side plates are 20-200 mm, and the bottom distribution plate is uniformly provided with a plurality of spraying holes.
3. The crystallization-removing self-flushing ammonia condensing and cooling device according to claim 1, wherein the baffle plate is provided with a concave notch, a round hole for a heat exchange tube to pass through and a single-side arc notch.
4. The crystallization-removing self-flushing ammonia condensation cooling device according to claim 1, wherein the outer diameter of a heat exchange tube of the first unit equipment at the upper end is phi 57mm, and the center distance of the heat exchange tube is more than or equal to 72 mm-100 mm; the outer diameter of the heat exchange tube of the second unit equipment is phi 38mm, and the center distance of the heat exchange tube is more than or equal to 48 mm-90 mm; the outer diameter of the heat exchange tube of the third unit equipment is phi 25mm, and the center distance of the heat exchange tube is more than or equal to 44 mm-70 mm; the outer diameter of the heat exchange tube of the fourth unit equipment is phi 19mm, and the center distance of the heat exchange tube is more than or equal to 25 mm-60 mm.
5. The self-flushing ammonia condensing and cooling device for removing crystals according to claim 1, wherein a plurality of spraying holes with diameter of 2 mm-20 mm are uniformly and symmetrically arranged on the lower side of the spraying pipe, and the spraying pipe is arranged on the top of the uppermost unit equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392594.5A CN107934987B (en) | 2017-12-21 | 2017-12-21 | Remove crystallization from washing formula ammonia condensation cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711392594.5A CN107934987B (en) | 2017-12-21 | 2017-12-21 | Remove crystallization from washing formula ammonia condensation cooling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107934987A CN107934987A (en) | 2018-04-20 |
| CN107934987B true CN107934987B (en) | 2024-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711392594.5A Active CN107934987B (en) | 2017-12-21 | 2017-12-21 | Remove crystallization from washing formula ammonia condensation cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN107934987B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3108447A (en) * | 1960-12-23 | 1963-10-29 | Chicago Bridge & Iron Co | Refrigeration by direct vapor condensation |
| CN1337561A (en) * | 2000-08-08 | 2002-02-27 | 液体空气乔治洛德方法利用和研究有限公司 | Heat-exchanger of heat-exchanging block comprising multiple uniform fluid-distribution supply pipeline |
| CN1469774A (en) * | 2000-10-24 | 2004-01-21 | Carbamate condensation unit | |
| CN2873744Y (en) * | 2006-03-21 | 2007-02-28 | 任翱翔 | Device for quick preparing industrial ammonia water |
| CN104006581A (en) * | 2014-06-21 | 2014-08-27 | 吉首大学 | Novel ammonia refrigeration condenser |
| CN206146223U (en) * | 2016-07-12 | 2017-05-03 | 天津市晨辉饲料有限公司 | High -efficient calibration nitrogen appearance condensing equipment |
| CN106979535A (en) * | 2017-04-28 | 2017-07-25 | 北京拓首工业炉股份有限公司 | A kind of combined air air preheater with denitration function |
| CN207738464U (en) * | 2017-12-21 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | One kind removing crystallization from wash type ammonia condensing cooling device |
-
2017
- 2017-12-21 CN CN201711392594.5A patent/CN107934987B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3108447A (en) * | 1960-12-23 | 1963-10-29 | Chicago Bridge & Iron Co | Refrigeration by direct vapor condensation |
| CN1337561A (en) * | 2000-08-08 | 2002-02-27 | 液体空气乔治洛德方法利用和研究有限公司 | Heat-exchanger of heat-exchanging block comprising multiple uniform fluid-distribution supply pipeline |
| CN1469774A (en) * | 2000-10-24 | 2004-01-21 | Carbamate condensation unit | |
| CN2873744Y (en) * | 2006-03-21 | 2007-02-28 | 任翱翔 | Device for quick preparing industrial ammonia water |
| CN104006581A (en) * | 2014-06-21 | 2014-08-27 | 吉首大学 | Novel ammonia refrigeration condenser |
| CN206146223U (en) * | 2016-07-12 | 2017-05-03 | 天津市晨辉饲料有限公司 | High -efficient calibration nitrogen appearance condensing equipment |
| CN106979535A (en) * | 2017-04-28 | 2017-07-25 | 北京拓首工业炉股份有限公司 | A kind of combined air air preheater with denitration function |
| CN207738464U (en) * | 2017-12-21 | 2018-08-17 | 中冶焦耐(大连)工程技术有限公司 | One kind removing crystallization from wash type ammonia condensing cooling device |
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| Publication number | Publication date |
|---|---|
| CN107934987A (en) | 2018-04-20 |
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