CN117442991A - CCMP production-based water separation rectifying tower and use method thereof - Google Patents
CCMP production-based water separation rectifying tower and use method thereof Download PDFInfo
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- CN117442991A CN117442991A CN202311782280.1A CN202311782280A CN117442991A CN 117442991 A CN117442991 A CN 117442991A CN 202311782280 A CN202311782280 A CN 202311782280A CN 117442991 A CN117442991 A CN 117442991A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 120
- 238000000926 separation method Methods 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000007788 liquid Substances 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000009423 ventilation Methods 0.000 claims description 62
- 238000001816 cooling Methods 0.000 claims description 41
- 238000007789 sealing Methods 0.000 claims description 39
- 238000010992 reflux Methods 0.000 claims description 27
- 230000006837 decompression Effects 0.000 claims description 26
- 238000001125 extrusion Methods 0.000 claims description 15
- 239000007791 liquid phase Substances 0.000 claims description 8
- 238000005070 sampling Methods 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 5
- 238000005381 potential energy Methods 0.000 claims description 4
- 238000001704 evaporation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 10
- 239000012071 phase Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 9
- 230000002035 prolonged effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000010795 Steam Flooding Methods 0.000 description 3
- 238000009833 condensation Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000000575 pesticide Substances 0.000 description 3
- WCXDHFDTOYPNIE-RIYZIHGNSA-N (E)-acetamiprid Chemical compound N#C/N=C(\C)N(C)CC1=CC=C(Cl)N=C1 WCXDHFDTOYPNIE-RIYZIHGNSA-N 0.000 description 2
- 239000005875 Acetamiprid Substances 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000005906 Imidacloprid Substances 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- YWTYJOPNNQFBPC-UHFFFAOYSA-N imidacloprid Chemical compound [O-][N+](=O)\N=C1/NCCN1CC1=CC=C(Cl)N=C1 YWTYJOPNNQFBPC-UHFFFAOYSA-N 0.000 description 2
- 229940056881 imidacloprid Drugs 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 206010070834 Sensitisation Diseases 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/007—Energy recuperation; Heat pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/14—Fractional distillation or use of a fractionation or rectification column
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
- B01D3/42—Regulation; Control
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
- B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The invention relates to the technical field of rectifying towers, but not limited to, and discloses a water separation rectifying tower based on CCMP production and a use method thereof, wherein the water separation rectifying tower based on the CCMP production comprises a base, a tower body arranged on the top surface of the base, a tower plate arranged on the inner wall of the tower body, and a rectifying mechanism arranged on the base, a pressure relief component is arranged in the tower body, and comprises a first pressure relief component arranged in the tower body, a second pressure relief component arranged on the tower body and a driving component arranged on the first pressure relief component. This moisture separation rectifying column based on CCMP production can help keeping the stability of the inside pressure differential control of tower, prevents the emergence of flooding phenomenon, makes between steam and the liquid fully contact as far as possible in the pressure release, can carry out recycle to unnecessary steam simultaneously, and the energy saving has reduced the thermal pollution to the environment.
Description
Technical Field
The invention relates to the technical field of rectifying towers, in particular to a water separation rectifying tower based on CCMP production and a use method thereof.
Background
CCMP is known as dichloropentachloromethylpyridine, which is an organic compound, is an important intermediate for synthesizing pesticides and medicines, has stronger sensitization, and is mainly used as an intermediate of pesticides imidacloprid and acetamiprid, and dichloropentachloromethylpyridine is an intermediate of pesticides imidacloprid and acetamiprid.
Moisture may be present in the raw materials or reagents used in the CCMP synthesis reaction, for example, nitrogen, solvents, catalysts, etc. used during the reaction may contain certain moisture, and the presence of moisture may affect the purity, stability, and other performance metrics of the product, so that it needs to be removed from the CCMP to ensure the product quality.
Since CCMP components have different boiling points from water, a plate type rectifying tower is used to purify CCMP raw materials and separate water in CCMP, and the plate type rectifying tower is a device for separating liquid mixture components, and the principle is that the mixture is heated to evaporate by utilizing the boiling point difference of different components and then condensed and collected, so that the separation of the components is realized.
Plate rectifying columns are typically composed of a series of parallel horizontal (or slightly inclined) plates between which the liquid flows downwards, the vapor rising between these plates and subsequently condensing. This design provides a large amount of contact area and time for mass and heat transfer to occur between the different components to better effect separation.
When the existing water separation plate type rectifying tower is used, the pressure difference control in the rectifying tower is very important, liquid can be easily boiled in the tower body to generate a large amount of gas when the rectifying tower supplies heat too fast or excessively, the gas pressure at the bottom of the tower body is increased, the liquid phase flows back to the upper tower plate from the lower tower plate, the liquid phase is prevented from normally falling, the liquid is continuously accumulated in the tower, the normal operation in the tower is damaged, the flooding phenomenon is caused, the normal operation of the rectifying tower is influenced, and the production efficiency is reduced.
Disclosure of Invention
In view of the problems that in the prior art, under the condition that the heat supply of the rectifying tower is too fast or excessive, the air pressure at the bottom of the tower body is increased, the flooding phenomenon is easy to occur, the normal operation of the rectifying tower is influenced, and the production efficiency is reduced, the water separation rectifying tower based on CCMP production and the use method thereof are provided.
In one aspect of the present application, a water separation rectifying tower based on CCMP production is provided, and its purpose is: when the atmospheric pressure of tower body bottom increases, steam can pass through from the inside of first breather cylinder and second breather cylinder simultaneously, can increase the speed and the flow that steam passed through, on this basis, if the further increase of tower body bottom atmospheric pressure, the unnecessary steam of tower body bottom can be through entering into the inside of third connecting pipe from the one end of pressure release pipe, reentrant condenser is inside, realizes the pressure release to can further help keeping the stability of the inside differential pressure control of tower body, finally prevent the emergence of flooding phenomenon.
The technical scheme of the invention is as follows: the utility model provides a water separation rectifying column based on CCMP production, including the base, the tower body that sets up in the base top surface, set up in the column plate of tower body inner wall, set up in the through-hole of column plate top surface, set up in the baffle of column plate lateral wall, set up in the column plate top surface and with the bubble cap that the through-hole corresponds, and set up the rectification mechanism on the base, the column plate is provided with a plurality of, a plurality of column plates are crisscross to be distributed in the inside of tower body, the inside of tower body is provided with pressure release part, peg graft in the bottom of tower body has the sampling valve, the top surface of base is provided with the supporter that is used for placing the sampling container;
the pressure release component has the function of keeping the stability of the air pressure at the bottom of the tower body and preventing the flooding phenomenon;
the pressure relief component comprises a first pressure relief component arranged in the tower body, a second pressure relief component arranged on the tower body and a driving component arranged on the first pressure relief component;
the first decompression assembly comprises a first ventilation cylinder fixedly arranged on the bottom surface of the column plate, a second ventilation cylinder fixedly arranged on the bottom surface of the column plate, an air hole formed in the outer wall of the second ventilation cylinder and a limiting plate fixedly arranged at the bottom end of the second ventilation cylinder, the top of the first ventilation cylinder is communicated with the inside of one part of bubble caps, the bottom of the first ventilation cylinder is communicated with the inside of the column body, and the top of the second ventilation cylinder is communicated with the inside of the other part of bubble caps;
The first decompression assembly further comprises a sliding plate which is elastically installed at the bottom of the tower plate, the sliding plate slides on the cylinder wall of the first ventilation cylinder, the sliding plate slides on the cylinder wall of the second ventilation cylinder, and in an initial state, air holes of the second ventilation cylinder are blocked by the sliding plate;
the second decompression assembly comprises a decompression pipe inserted at the bottom of the tower body, a sliding groove formed in the inner wall of the tower body, and a first sealing plate arranged in the sliding groove and used for sealing one end of the decompression pipe;
the drive assembly comprises a control plate elastically mounted on the bottom surface of the bottommost tray in the tower body, a connecting plate arranged on the outer wall of the control plate, a top block arranged on the bottom surface of the bottommost tray in the tower body, a mounting groove formed in the top surface of the control plate, a movable block arranged in the mounting groove, a guide plate arranged on the outer wall of the movable block, a fixed block arranged on the top surface of the control plate, a spring plate arranged on the outer wall of the fixed block, and an extrusion block arranged on the top surface of the bottommost sliding plate in the tower body and used for extruding the movable block.
By adopting the scheme, when the air pressure at the bottom of the tower body is increased, the first decompression assembly moves at first, steam drives the sliding plate to move towards the direction close to the tower plate, so that the air hole of the second ventilation tube leaks, steam can pass through the first ventilation tube and the second ventilation tube simultaneously, the speed and the flow rate of the steam passing through can be increased, the air pressure at the bottom of the tower body is avoided being overlarge, on the basis, if the air pressure at the bottom of the tower body is further increased, the driving assembly controls the first sealing plate to slide, one end of the decompression tube close to the tower body is not blocked any more, redundant steam at the bottom of the tower body can be decompressed from one end of the decompression tube close to the tower body through realization, so that the stability of pressure difference control in the tower body can be further helped, and finally the flooding phenomenon is prevented.
Further, rectifying mechanism is including setting up in the reboiler of base top surface, peg graft in the inlet pipe at tower body middle part, peg graft in the discharging pipe of tower body bottom, set up in the discharging pipe keep away from tower body one end and with the inside first connecting pipe that communicates each other of reboiler, peg graft in tower body bottom and with the inside second connecting pipe that communicates each other of reboiler, set up in the mounting bracket of base top surface, set up in the condenser of mounting bracket top surface, set up in the backwash pump of mounting bracket top surface, peg graft in the tower body top and with the inside third connecting pipe that communicates each other of condenser, peg graft in the tower body top and with the inside fourth connecting pipe that communicates each other of backwash pump, and peg graft in the inside and the inside fifth connecting pipe that communicates each other of backwash pump of condenser, and the one end and the third connecting pipe that the tower body was kept away from to the pressure release pipe are connected.
By adopting the scheme, after the treatment of the rectification process, the obtained relatively dry CCMP solution flows out from the discharge pipe at the bottom of the tower body, water and other light components are separated to the top of the tower, and heavier components are collected at the bottom of the tower, so that the effective separation and purification processes are realized.
Further, the second pressure reducing assembly further comprises an annular plate arranged on the inner wall of the pressure relief pipe and a second sealing plate arranged on the inner wall of the pressure relief pipe and used for sealing the inner part of the annular plate.
By adopting the scheme, through the cooperation between annular plate and the second closing plate, can avoid inside the inside steam of third connecting pipe to enter into the pressure release pipe, guarantee that the inside steam of third connecting pipe enters into in the condenser smoothly.
Further, the second decompression assembly further comprises a liquid storage pipe inserted into the outer wall of the decompression pipe and a sealing cover arranged at the bottom end of the liquid storage pipe.
By adopting the scheme, the liquid storage pipe is vertically arranged, the vapor cooled and liquefied in the pressure release pipe can be collected, and the sealing cover seals the bottom end of the liquid storage pipe.
Further, the drive assembly further comprises a first elastic piece arranged on the bottom surface of the bottommost tray in the tower body and a second elastic piece arranged on the bottom surface of the control plate, one end of the first elastic piece, far away from the bottommost tray in the tower body, is fixedly connected with the top surface of the control plate, and one end of the second elastic piece, far away from the control plate, is fixedly connected with the top surface of the bottommost sliding plate in the tower body.
By adopting the scheme, the reset power can be provided for the control panel and the sliding plate at the bottommost part in the tower body through the first elastic piece and the second elastic piece.
Further, the outer wall of mounting bracket is provided with the cooling subassembly in advance.
By adopting the scheme, through the pre-cooling component, the vapor passing through the inside of the pressure relief pipe can be pre-cooled, so that the vapor is prevented from being overheated and condensed in the condenser, the heat load on the condenser is reduced, the service life of the condenser is prolonged, and the efficiency and the performance of the condenser are ensured.
Further, the pre-cooling component comprises a water tank arranged on the outer wall of the mounting frame, a water pump arranged on the outer wall of the water tank, a water diversion pipe arranged at the water inlet end of the water pump, and a cooling pipe arranged at the water outlet end of the water pump, wherein the cooling pipe is wound on the outer wall of the pressure relief pipe, one end of the cooling pipe, far away from the water pump, is mutually communicated with the inside of the water tank, and one end, far away from the water pump, of the water diversion pipe is mutually communicated with the inside of the water tank.
By adopting the scheme, the ice plate is placed in the water tank, water in the water tank can be cooled, water in the water tank can be introduced into the cooling pipe through controlling the water pump to work, the cooling pipe is wound on the outer wall of the pressure relief pipe, and the cooling effect on steam in the pressure relief pipe is achieved.
Furthermore, the invention also provides a method for using the water separation rectifying tower based on CCMP production, which comprises the following steps:
introducing CCMP solution into the tower body through a feed pipe, controlling a rectifying mechanism to work, heating the CCMP solution by a reboiler, evaporating water in the CCMP solution into steam, guiding the steam back into the tower body through a second connecting pipe, then, allowing the steam to enter a condenser through a third connecting pipe after rising to the top of the tower body, condensing the steam at the top of the tower, providing a liquid phase product at the top of the tower and reflux liquid, allowing the reflux liquid to enter a reflux pump through a fifth connecting pipe, allowing the reflux liquid to flow back to the top of the tower body through a fourth connecting pipe by the reflux pump, separating water and other light components to the top of the tower, and collecting heavy CCMP components at the bottom of the tower;
in the initial state, steam passes through the first ventilation cylinder, when the air pressure at the bottom of the tower body is increased, the steam can pass through the first ventilation cylinder and the second ventilation cylinder simultaneously, so that the speed and the flow rate of the steam are increased, and at the moment, the control board does not move;
when the steam flows upwards from the interiors of the first ventilation cylinder and the second ventilation cylinder simultaneously, when the air pressure at the bottom of the tower body is continuously increased, the sliding plate continuously slides to separate the movable block from the top block, the sliding plate continuously slides, meanwhile, the two extrusion blocks are driven to pass through the mounting groove and respectively extrude the movable block to drive the two movable blocks to move in opposite directions until the two movable blocks move to be separated from the top block, in the process, the movable blocks move to extrude the elastic sheets to store elastic potential energy, then the steam can drive the control plate to move in the direction close to the bottommost tray in the tower body, the control plate moves to drive the connecting plate to move, the connecting plate drives the first sealing plate to slide upwards, one end of the pressure relief pipe close to the tower body is leaked, and redundant steam at the bottom of the tower body can flow into the condenser from the inside of the pressure relief pipe to realize pressure relief;
When the air pressure at the bottom of the tower body is reduced, the control plate, the sliding plate, the movable block and the first sealing plate are reset.
By adopting the scheme, when the air pressure at the bottom of the tower body increases, steam can pass through the first ventilation cylinder and the second ventilation cylinder simultaneously, and if the air pressure at the bottom of the tower body further increases, the driving assembly can automatically drive the first sealing plate to slide upwards, and one end of the pressure release pipe is leaked, so that the steam and the liquid can be fully contacted as much as possible when the pressure is released, and the redundant steam can be recycled.
Further, before equipment works, the ice plate is placed in the water tank, water in the water tank is cooled, then water in the water tank can be introduced into the cooling pipe through controlling the water pump to work, the cooling pipe is wound on the outer wall of the pressure relief pipe, and steam in the pressure relief pipe is pre-cooled.
By adopting the scheme, through the pre-cooling component, the vapor passing through the inside of the pressure relief pipe can be pre-cooled, so that the vapor is prevented from being overheated and condensed in the condenser, the heat load on the condenser is reduced, the service life of the condenser is prolonged, and the efficiency and the performance of the condenser are ensured.
The invention has the beneficial effects that:
1. when the atmospheric pressure of tower body bottom increases, steam can pass through from the inside of first breather cylinder and second breather cylinder simultaneously, can increase the speed and the flow that steam passed through, avoid the gas pressure of tower body bottom too big, on this basis, if the further increase of tower body bottom atmospheric pressure, control panel control first closing plate upwards slides for the one end of pressure release pipe leaks, the unnecessary steam of tower body bottom can be through entering into the inside of third connecting pipe from the one end of pressure release pipe, reentrant inside the condenser, realize the pressure release, thereby can further help keeping the stability of the inside differential pressure control of tower body, finally prevent the emergence of flooding phenomenon, make as far as possible abundant contact between steam and the liquid in the pressure release, simultaneously can carry out recycle to unnecessary steam, the energy saving, the thermal pollution to the environment has been reduced.
2. When the steam flows upwards from the inside of first ventilation cylinder and second ventilation cylinder, when the atmospheric pressure of tower body bottom continues to increase, the sliding plate continues to slide, two extrusion pieces extrude the movable block respectively, drive two movable blocks and remove to opposite directions, until two movable blocks remove to the separation with the kicking block, then, steam can drive the control panel to remove to the direction that is close to the tower plate of tower inner bottommost, the control panel removes and drives the connecting plate and remove, the connecting plate drives first closing plate and upwards slides, thereby can drive first closing plate automatically and upwards slide, leak the one end of pressure release pipe, the use of complicated electronic component and control system has been reduced, and a structure is simple, easy to maintain.
3. Through placing the ice board in the inside of water tank, cool down the inside water of water tank, then work through control water pump, can introduce the inside cooling tube with the water in the water tank, the cooling tube winding is at the pressure release pipe outer wall, realizes the effect of cooling down in advance to the inside steam of pressure release pipe, avoids steam to overheat the condensation in the condenser, has reduced the heat load to the condenser, has prolonged the life of condenser, guarantees the efficiency and the performance of condenser.
Drawings
FIG. 1 is a perspective view of a first embodiment of the present invention;
FIG. 2 is a schematic diagram illustrating the installation of a fifth connecting pipe according to the first embodiment of the present invention;
FIG. 3 is a perspective view of a tower according to a first embodiment of the present invention;
FIG. 4 is a cross-sectional view of a tower according to a first embodiment of the present invention;
FIG. 5 is a schematic view of the installation of a first pressure relief assembly according to an embodiment of the present invention;
FIG. 6 is a schematic view illustrating the installation of a limiting plate according to a first embodiment of the present invention;
FIG. 7 is a schematic view illustrating the installation of a second seal plate according to a first embodiment of the present invention;
FIG. 8 is a perspective view of an intermediate ring plate according to an embodiment of the present invention;
FIG. 9 is a schematic view showing the installation of a closure cap according to a first embodiment of the present invention;
FIG. 10 is a cross-sectional view of a tower in accordance with a second embodiment of the present invention;
fig. 11 is a schematic diagram illustrating the installation of a control board in the second embodiment of the present invention;
FIG. 12 is a schematic diagram illustrating the installation of a driving assembly according to a second embodiment of the present invention;
FIG. 13 is a perspective view of a movable block in a second embodiment of the present invention;
FIG. 14 is a front view of FIG. 11 in a second embodiment of the present invention;
FIG. 15 is a schematic diagram illustrating the installation of a pre-cooling assembly according to a third embodiment of the present invention;
FIG. 16 is a perspective view of a pre-cooling assembly according to a third embodiment of the present invention.
In the figure:
1. a base; 2. a tower body; 3. a feed pipe; 4. a discharge pipe; 5. a first connection pipe; 6. a reboiler; 7. a second connection pipe; 8. a third connection pipe; 9. a condenser; 10. a fourth connection pipe; 11. a reflux pump; 12. a fifth connection pipe; 13. a mounting frame; 14. a sampling valve; 15. a commodity shelf; 16. a first pressure relief assembly; 17. a tray; 18. a baffle; 19. a blister; 20. a first chimney; 21. a second vent cylinder; 22. a sliding plate; 23. a limiting plate; 24. a second pressure relief assembly; 25. a pressure relief tube; 26. a chute; 27. a first sealing plate; 28. a liquid storage tube; 29. a mask; 30. an annular plate; 31. a second sealing plate; 32. a drive assembly; 33. a control board; 34. a connecting plate; 35. a top block; 36. a mounting groove; 37. a movable block; 38. a guide plate; 39. a fixed block; 40. a spring plate; 41. extruding a block; 42. a first elastic member; 43. a second elastic member; 44. a pre-cooling assembly; 45. a water tank; 46. a water pump; 47. a cooling pipe; 48. a water conduit.
Detailed Description
In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings.
Embodiment 1 referring to fig. 1 to 14, a water separation rectifying tower based on CCMP production is provided as a first embodiment of the present invention, and comprises a base 1, a tower body 2 arranged on the top surface of the base 1, a tray 17 arranged on the inner wall of the tower body 2, a through hole arranged on the top surface of the tray 17, a baffle 18 arranged on the side wall of the tray 17, a bubble cap 19 arranged on the top surface of the tray 17 and corresponding to the through hole, and a rectifying mechanism arranged on the base 1.
Specifically, tower body 2 fixed mounting is at the top surface of base 1, and column plate 17 fixed mounting is at the inner wall of tower body 2, and baffle 18 fixed mounting is at the lateral wall of column plate 17, and the outer wall of baffle 18 and the inner wall of tower body 2 are mutually adapted, have seted up a plurality of through-holes on every column plate 17, and bubble cap 19 fixed mounting is at the top surface of column plate 17, and the quantity of bubble cap 19 corresponds with the quantity of through-hole, and rectifying mechanism is the relevant equipment that realizes CCMP rectification.
Referring to fig. 1 to 3, the rectification mechanism includes a reboiler 6 disposed on the top surface of the base 1, a feed pipe 3 inserted in the middle of the tower 2, a discharge pipe 4 inserted in the bottom of the tower 2, a first connection pipe 5 disposed at one end of the discharge pipe 4 away from the tower 2 and communicating with the interior of the reboiler 6, a second connection pipe 7 inserted in the bottom of the tower 2 and communicating with the interior of the reboiler 6, a mounting bracket 13 disposed on the top surface of the base 1, a condenser 9 disposed on the top surface of the mounting bracket 13, a reflux pump 11 disposed on the top surface of the mounting bracket 13, a third connection pipe 8 inserted at the top of the tower 2 and communicating with the interior of the condenser 9, a fourth connection pipe 10 inserted at the top of the tower 2 and communicating with the interior of the reflux pump 11, and a fifth connection pipe 12 inserted in the interior of the condenser 9 and communicating with the interior of the reflux pump 11, and one end of the pressure release pipe 25 away from the tower 2 is connected with the third connection pipe 8.
Specifically, inlet pipe 3 is located the mid portion of tower body 2, reboiler 6 fixed mounting is at the top surface of base 1, through nut threaded connection between first connecting pipe 5 and the discharging pipe 4, mounting bracket 13 fixed mounting is at the top surface of base 1, condenser 9 fixed mounting is at the top surface of mounting bracket 13, backwash pump 11 fixed mounting is at the top surface of mounting bracket 13, wherein reboiler 6, condenser 9 and backwash pump 11 are common rectification technical means among the prior art, its specific model can be according to the in-service use demand and decide, do not make too much here and repeat the description.
The work flow of rectifying mechanism is, through inlet pipe 3, the CCMP solution is directed into the inside of tower 2, the CCMP solution flows down through multilayer crisscross column plate 17 and baffle 18 and enters into the bottom of tower 2, then the partial CCMP solution of bottom enters into the inside of reboiler 6 through discharging pipe 4 and first connecting pipe 5, control reboiler 6 work, can evaporate the inside moisture of reboiler 6 into the gaseous phase, afterwards, steam returns to the inside of tower 2 through second connecting pipe 7, the steam passes through multilayer column plate 17 and bubble cap 19 from bottom to top, the steam rises to the top of tower 2, enter into condenser 9 through third connecting pipe 8 inside, the effect of condenser 9 is condensing tower top steam, provide top liquid phase product and reflux liquid, reflux liquid enters into reflux pump 11 through fifth connecting pipe 12, reflux pump 11 will flow back to the top of tower 2 through fourth connecting pipe 10, the reflux liquid is the coolant that constitutes the partial condensation of steam, still plays the effect of giving the liquid phase on column plate 17 and supplementing volatile components simultaneously, make the liquid phase composition on column plate 17 remain unchanged, so as to keep the operation steady, the relative heavy phase is separated in the tower top of tower 2 through the third connecting pipe 8, the water phase is separated by the water phase, the water phase is separated from the bottom of the tower 2, the water phase is separated by the water phase, the water phase is separated from the bottom of the water phase, and the water phase is separated by the bottom of the top of the water phase, and has the effect and has been separated.
Referring to fig. 1-9, a plurality of tower plates 17 are provided, the plurality of tower plates 17 are distributed in the tower body 2 in a staggered manner, a pressure relief part is arranged in the tower body 2, a sampling valve 14 is inserted into the bottom of the tower body 2, and a storage rack 15 for placing sampling containers is arranged on the top surface of the base 1.
Specifically, the shelf 15 is placed on the top surface of the base 1, and the CCMP solution at the bottom of the tower body 2 can be taken out by opening the sampling valve 14, so as to detect the purity of the CCMP solution.
Referring to fig. 1 to 9, the pressure relief component is used for maintaining the stability of the air pressure at the bottom of the tower body 2 and preventing flooding phenomenon, and comprises a first pressure relief component 16 arranged inside the tower body 2, a second pressure relief component 24 arranged on the tower body 2, and a driving component 32 arranged on the first pressure relief component 16.
The first decompression assembly 16 comprises a first ventilation cylinder 20 fixedly arranged on the bottom surface of the tray 17, a second ventilation cylinder 21 fixedly arranged on the bottom surface of the tray 17, air holes formed in the outer wall of the second ventilation cylinder 21 and a limiting plate 23 fixedly arranged at the bottom end of the second ventilation cylinder 21, the top of the first ventilation cylinder 20 is communicated with the inside of one part of bubble caps 19, the bottom of the first ventilation cylinder 20 is communicated with the inside of the tower body 2, and the top of the second ventilation cylinder 21 corresponds to the position of the other part of bubble caps 19;
The first decompression assembly 16 further comprises a sliding plate 22 elastically installed at the bottom of the tray 17, the sliding plate 22 slides on the cylinder wall of the first ventilation cylinder 20, the sliding plate 22 slides on the cylinder wall of the second ventilation cylinder 21, and in an initial state, the air holes of the second ventilation cylinder 21 are blocked by the sliding plate 22.
Specifically, in the initial state, the gas pocket of second vent tube 21 is blocked by slide plate 22, first relief pressure subassembly 16 is used for when the pressure of tower body 2 bottom rises, increase the quantity that the through-hole was opened on the column plate 17, promote steam upward flow, reach the effect of preliminary reduction tower body 2 bottom atmospheric pressure, through the limiting plate 23 that sets up, can carry out spacingly to slide plate 22's sliding track, guarantee slide plate 22 and slide along the outer wall of second vent tube 21, slide plate 22's outer wall and the inner wall of tower body 2, baffle 18's outer wall slip laminating, slide plate 22 passes through reset spring elastic mounting in the bottom surface of column plate 17, reset spring's one end and the bottom surface fixed connection of column plate 17, reset spring's the other end and slide plate 22's top surface fixed connection.
Referring to fig. 4, the second decompression assembly 24 includes a decompression tube 25 inserted into the bottom of the tower 2, a chute 26 formed on the inner wall of the tower 2, and a first sealing plate 27 disposed inside the chute 26 and used for sealing one end of the decompression tube 25.
Specifically, the second pressure reducing component 24 is configured to perform a second step of pressure reducing treatment on the steam at the bottom of the tower body 2 when the air pressure at the bottom of the tower body 2 continues to increase after the air hole of the second air vent tube 21 is opened, so as to prevent flooding, and the first sealing plate 27 is slidably mounted in the chute 26, where one end of the pressure reducing tube 25 away from the tower body 2 is communicated with the third connecting tube 8.
Referring to fig. 7-8, the second pressure relief assembly 24 further includes an annular plate 30 disposed on an inner wall of the pressure relief tube 25, and a second sealing plate 31 disposed on the inner wall of the pressure relief tube 25 for sealing off an interior of the annular plate 30.
Specifically, the annular plate 30 is fixedly mounted on the inner wall of the pressure relief pipe 25, the second sealing plate 31 is rotatably mounted on the inner wall of the pressure relief pipe 25, and the outer diameter of the second sealing plate 31 is larger than that of the annular plate 30, so that the second sealing plate 31 is guaranteed to realize unidirectional rotation.
Through the cooperation between annular plate 30 and the second closing plate 31, can avoid inside the inside steam of third connecting pipe 8 to enter into pressure release pipe 25, guarantee that the inside steam of third connecting pipe 8 enters into condenser 9 smoothly.
Referring to fig. 9, the second pressure reducing assembly 24 further includes a liquid storage tube 28 inserted into the outer wall of the pressure releasing tube 25, and a sealing cover 29 disposed at the bottom end of the liquid storage tube 28.
Specifically, the liquid storage tube 28 is vertical, and the sealing cover 29 is installed in the bottom of liquid storage tube 28 through inside and outside screw-thread fit, and sealing cover 29 shutoff is carried out to the bottom of liquid storage tube 28, and liquid storage tube 28 can collect the inside cooling liquefied steam at pressure release pipe 25, and a period of time can unscrew sealing cover 29 and discharge the inside liquid of liquid storage tube 28, helps the clearance pipeline, reduces the risk that pressure release pipe 25 pipeline was blockked up.
Referring to fig. 10 to 14, the driving assembly 32 includes a control plate 33 elastically installed at the bottom surface of the bottommost tray 17 in the tower 2, a connection plate 34 installed at the outer wall of the control plate 33, a top block 35 installed at the bottom surface of the bottommost tray 17 in the tower 2, a mounting groove 36 opened at the top surface of the control plate 33, a movable block 37 installed inside the mounting groove 36, a guide plate 38 installed at the outer wall of the movable block 37, a fixed block 39 installed at the top surface of the control plate 33, a spring 40 installed at the outer wall of the fixed block 39, and an extrusion block 41 installed at the top surface of the bottommost sliding plate 22 in the tower 2 for extruding the movable block 37, wherein the bottom of the mounting groove 36 penetrates through the bottom surface of the control plate 33, one end of the connection plate 34 far away from the control plate 33 is fixedly connected with the top surface of the first sealing plate 27, one end of the spring 40 far away from the fixed block 39 is fixedly connected with the outer wall of the movable block 37, the bottom surface of the control plate 33 is elastically connected with the top surface of the bottommost sliding plate 22 in the tower 2, the control plate 33 slides on the wall of the bottommost sliding plate 20 in the tower 2, the control plate 33 slides on the wall of the bottommost sliding plate 21 in the tower 2, and the pressure reducing assembly 16 moves the control plate 33 continues to control the first sealing plate 33 when the pressure reducing assembly moves the control plate 33 and the pressure is controlled by the first sealing plate 27.
The driving assembly 32 further comprises a first elastic member 42 arranged on the bottom surface of the bottommost tray 17 in the tower body 2, and a second elastic member 43 arranged on the bottom surface of the control plate 33, wherein one end of the first elastic member 42, which is far away from the bottommost tray 17 in the tower body 2, is fixedly connected with the top surface of the control plate 33, and one end of the second elastic member 43, which is far away from the control plate 33, is fixedly connected with the top surface of the bottommost sliding plate 22 in the tower body 2.
Specifically, the top block 35 is fixedly installed on the bottom surface of the bottommost tray 17 in the tower body 2, the movable block 37 is slidably installed in the installation groove 36, the guide plate 38 is fixedly installed on the outer wall of the movable block 37, a plurality of guide plates 38 are arranged, the guide plates 38 are respectively located on the upper side and the lower side of the control plate 33, stability during sliding of the movable block 37 can be guaranteed through the arranged guide plates 38, the fixed block 39 is fixedly installed on the outer wall of the control plate 33, the elastic sheet 40 is fixedly installed on the outer wall of the fixed block 39, one end of the elastic sheet 40, far away from the fixed block 39, is fixedly connected with the outer wall of the movable block 37, the extrusion block 41 is fixedly installed on the top surface of the bottommost sliding plate 22 in the tower body 2, one side surface of the movable block 37, close to the extrusion block 41, is in an inclined arrangement, one side surface of the extrusion block 41 is mutually adaptive to the inclined surface of the extrusion block 41, the connecting plate 34 is fixedly installed on the outer wall of the control plate 33, one end of the first elastic piece 42 is fixedly connected with the bottom surface of the bottommost tray 17 in the tower body 2, one end of the second elastic piece 43 is fixedly connected with the bottom surface of the control plate 33, the first elastic piece 42 and the second elastic piece 43 can be a common elastic spring or an elastic compression plate in the prior art.
Working principle: in the initial state, the sliding plate 22 is located on the limiting plate 23, the sliding plate 22 plugs the air holes of the second air ventilation tube 21, steam passes through the first air ventilation tube 20, when the air pressure at the bottom of the tower body 2 increases, the first decompression assembly 16 moves first, the steam drives the sliding plate 22 to move towards the direction close to the tower plate 17, so that the air holes of the second air ventilation tube 21 leak out, the steam can pass through the first air ventilation tube 20 and the second air ventilation tube 21 at the same time, the speed and the flow rate of the steam can be increased, at the moment, the top surface of the movable block 37 contacts with the bottom surface of the top block 35, and the control plate 33 does not move.
When the steam flows upwards from the inside of the first ventilation cylinder 20 and the second ventilation cylinder 21 at the same time, when the air pressure at the bottom of the tower body 2 is continuously increased, the sliding plate 22 continuously slides, meanwhile, the two extrusion blocks 41 are driven to pass through the mounting groove 36, the two extrusion blocks 41 respectively extrude the movable blocks 37, the two movable blocks 37 are driven to move in opposite directions until the two movable blocks 37 move to be separated from the top block 35, in the process, the movable blocks 37 move to extrude the elastic sheet 40, so that the elastic sheet 40 stores elastic potential energy, then, the steam can drive the control plate 33 to move towards the direction close to the bottommost tray 17 in the tower body 2, the control plate 33 moves to drive the connecting plate 34 to move, the connecting plate 34 drives the first sealing plate 27 to slide upwards, one end of the pressure release pipe 25 is not blocked by the first sealing plate 27, redundant steam at the bottom of the tower body 2 can flow into the condenser 9 from the inside of the pressure release pipe 25, and thus the stability of the pressure difference control inside the tower body 2 can be further helped, and the phenomenon of flooding is finally prevented.
When the air pressure at the bottom of the tower body 2 is reduced, under the action of the elastic force of the first elastic piece 42 and the second elastic piece 43, the control board 33 and the sliding board 22 can be driven to reset, and under the action of the elastic force of the elastic piece 40, the movable block 37 can be driven to reset.
On the basis that steam can pass through from the inside of first breather cylinder 20 and second breather cylinder 21 simultaneously, if the atmospheric pressure is further increased in tower body 2 bottom, can drive first closing plate 27 automatically and upwards slide through the drive assembly 32 that this embodiment set up, spill the one end of pressure release pipe 25 to reduce complicated electronic component and control system's use, simple structure, easy to maintain.
Since the liquid flows downwards between the plurality of trays 17 and the steam rises between the plurality of trays 17, the design provides a large amount of contact area and time so that mass transfer and heat transfer between different components can occur, and separation is better realized, therefore, when the air pressure at the bottom of the tower body 2 is increased, the device firstly moves through the first decompression component 16 to perform primary decompression, so that the steam and the liquid can be fully contacted while decompressing, on the basis, if the air pressure at the bottom of the tower body 2 is still increased, the device only controls the second decompression component 24 to move, redundant steam at the bottom of the tower body 2 enters the condenser 9 through the decompression pipe 25 and the third connecting pipe 8 to normally reflux, so that the bottom steam is effectively treated in the condenser 9, the influence of the air on the pressure difference and the separation process is reduced, the stability of pressure difference control is helped to be maintained, and finally the flooding phenomenon is prevented.
And compared with the prior art, the device can directly discharge the redundant steam at the bottom of the tower body 2, can recycle the redundant steam, can save energy, reduce resource waste, reduce thermal pollution to the environment, reduce exhaust emission and is more friendly to the environment.
Embodiment 2, referring to fig. 15-16, is a second embodiment of the present invention, which differs from the first embodiment in that: the outer wall of the mounting bracket 13 is provided with a pre-cooling assembly 44.
Specifically, through the pre-cooling component 44 that sets up, can carry out pre-cooling treatment to the steam that pressure release pipe 25 inside passed through, avoid steam to overheat the condensation in condenser 9, reduced the heat load to condenser 9, prolonged condenser 9's life to guarantee condenser 9's efficiency and performance.
15-16, pre-cooling assembly 44 includes a water tank 45 disposed on an outer wall of mounting bracket 13, a water pump 46 disposed on an outer wall of water tank 45, a water conduit 48 disposed on a water inlet end of water pump 46, and a cooling pipe 47 disposed on a water outlet end of water pump 46, wherein cooling pipe 47 is wound on an outer wall of pressure relief pipe 25, one end of cooling pipe 47 away from water pump 46 is communicated with an interior of water tank 45, and one end of water conduit 48 away from water pump 46 is communicated with an interior of water tank 45.
Specifically, the water tank 45 is fixedly installed on the outer wall of the installation frame 13, the water pump 46 is fixedly installed on the outer wall of the water tank 45, the water guide pipe 48 is fixedly installed on the water inlet end of the water pump 46, and the cooling pipe 47 is fixedly installed on the water outlet end of the water pump 46.
Working principle: the ice plate is placed in the water tank 45 to cool water in the water tank 45, then the water pump 46 is controlled to work, the water in the water tank 45 can be led into the cooling pipe 47, the cooling pipe 47 is wound on the outer wall of the pressure relief pipe 25, the pre-cooling effect of steam in the pressure relief pipe 25 is achieved, the steam is prevented from being overheated and condensed in the condenser 9, the heat load on the condenser 9 is reduced, the service life of the condenser 9 is prolonged, and therefore the efficiency and the performance of the condenser 9 are guaranteed. The rest of the structure is the same as that of embodiment 1.
Embodiment 3 referring to fig. 1-16, for a third embodiment of the present invention, there is provided: a method for using a water separation rectifying tower based on CCMP production comprises the following steps:
step one: introducing CCMP solution into the tower body 2 through a feed pipe 3, controlling a rectifying mechanism to work, heating the CCMP solution by a reboiler 6, evaporating water in the CCMP solution into steam, guiding the steam back into the tower body 2 through a second connecting pipe 7, then, after the steam rises to the top of the tower body 2, entering into a condenser 9 through a third connecting pipe 8, condensing the tower top steam to provide tower top liquid phase product and reflux liquid, entering the reflux pump 11 through a fifth connecting pipe 12, refluxing the reflux liquid to the top of the tower body 2 through a fourth connecting pipe 10 by the reflux pump 11, separating the water and other light components to the top of the tower, and collecting heavier components at the bottom of the tower to realize the effective water separation and purification process;
Step two: in the initial state, the sliding plate 22 is positioned on the limiting plate 23, the sliding plate 22 seals the air holes of the second air ventilation cylinder 21, steam passes through the first air ventilation cylinder 20, when the air pressure at the bottom of the tower body 2 is increased, the first decompression assembly 16 moves first, the steam drives the sliding plate 22 to move towards the direction close to the tower plate 17, so that the air holes of the second air ventilation cylinder 21 leak out, the steam can pass through the first air ventilation cylinder 20 and the second air ventilation cylinder 21 at the same time, the speed and the flow rate of the steam can be increased, at the moment, the top surface of the movable block 37 contacts with the bottom surface of the top block 35, and the control plate 33 does not move;
step three: when the steam flows upwards from the interiors of the first ventilation cylinder 20 and the second ventilation cylinder 21 at the same time, when the air pressure at the bottom of the tower body 2 is continuously increased, the sliding plate 22 continuously slides, simultaneously, the two extrusion blocks 41 are driven to pass through the mounting groove 36, the two extrusion blocks 41 respectively extrude the movable blocks 37, the two movable blocks 37 are driven to move in opposite directions until the two movable blocks 37 are moved to be separated from the top block 35, in the process, the movable blocks 37 move to extrude the elastic sheet 40, so that the elastic sheet 40 stores elastic potential energy, then the steam can drive the control plate 33 to move in the direction close to the bottommost tray 17 in the tower body 2, the control plate 33 moves to drive the connection plate 34 to move, the connection plate 34 drives the first sealing plate 27 to slide upwards, one end of the pressure release pipe 25 is opened, and redundant steam at the bottom of the tower body 2 can flow into the condenser 9 from the inside the pressure release pipe 25;
Step four: when the air pressure at the bottom of the tower body 2 is reduced, under the action of the elastic force of the first elastic piece 42 and the second elastic piece 43, the control panel 33 and the sliding plate 22 can be driven to reset, and under the action of the elastic force of the elastic piece 40, the movable block 37 can be driven to reset;
step five: before equipment works, an ice plate is placed in the water tank 45 to cool water in the water tank 45, then the water in the water tank 45 can be led into the cooling pipe 47 by controlling the water pump 46 to work, and the cooling pipe 47 is wound on the outer wall of the pressure relief pipe 25, so that the cooling effect on steam in the pressure relief pipe 25 is realized.
It should be noted that the above embodiments are only for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention may be modified or substituted without departing from the spirit and scope of the technical solution of the present invention, which is intended to be covered in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a moisture separation rectifying column based on CCMP production, includes base (1), set up in tower body (2) of base (1) top surface, set up in column plate (17) of tower body (2) inner wall, set up in the through-hole of column plate (17) top surface, set up in baffle (18) of column plate (17) lateral wall, set up in column plate (17) top surface and with bubble cap (19) that the through-hole corresponds to and set up the rectifying mechanism on base (1), its characterized in that: the device comprises a plurality of tower plates (17), wherein the plurality of tower plates (17) are distributed in the tower body (2) in a staggered mode, a pressure relief part is arranged in the tower body (2), a sampling valve (14) is inserted into the bottom of the tower body (2), and a storage rack (15) for placing a sampling container is arranged on the top surface of the base (1);
The pressure relief component has the function of keeping the stability of the air pressure at the bottom of the tower body (2) and preventing flooding;
the pressure relief component comprises a first pressure relief component (16) arranged in the tower body (2), a second pressure relief component (24) arranged on the tower body (2), and a driving component (32) arranged on the first pressure relief component (16);
the first decompression assembly (16) comprises a first ventilation cylinder (20) fixedly arranged on the bottom surface of the column plate (17), a second ventilation cylinder (21) fixedly arranged on the bottom surface of the column plate (17), air holes formed in the outer wall of the second ventilation cylinder (21) and a limiting plate (23) fixedly arranged at the bottom end of the second ventilation cylinder (21), the top of the first ventilation cylinder (20) is communicated with the inside of one part of bubble caps (19), the bottom of the first ventilation cylinder (20) is communicated with the inside of the column body (2), and the top of the second ventilation cylinder (21) is communicated with the inside of the other part of bubble caps (19);
the first decompression assembly (16) further comprises a sliding plate (22) which is elastically installed at the bottom of the tower plate (17), the sliding plate (22) slides on the cylinder wall of the first ventilation cylinder (20), the sliding plate (22) slides on the cylinder wall of the second ventilation cylinder (21), and in an initial state, air holes of the second ventilation cylinder (21) are blocked by the sliding plate (22);
The second pressure reducing assembly (24) comprises a pressure reducing pipe (25) inserted into the bottom of the tower body (2), a sliding groove (26) formed in the inner wall of the tower body (2), and a first sealing plate (27) arranged in the sliding groove (26) and used for sealing one end of the pressure reducing pipe (25);
the driving component (32) comprises a control plate (33) which is elastically arranged on the bottom surface of a bottommost tray (17) in the tower body (2), a connecting plate (34) which is arranged on the outer wall of the control plate (33), a top block (35) which is arranged on the bottom surface of the bottommost tray (17) in the tower body (2), a mounting groove (36) which is arranged on the top surface of the control plate (33), a movable block (37) which is arranged in the mounting groove (36), a guide plate (38) which is arranged on the outer wall of the movable block (37), a fixed block (39) which is arranged on the top surface of the control plate (33), a spring piece (40) which is arranged on the outer wall of the fixed block (39) and an extrusion block (41) which is arranged on the top surface of a bottommost sliding plate (22) in the tower body (2) and is used for extruding the movable block (37), one end of the connecting plate (34) which is far away from the bottom surface of the control plate (33) is fixedly connected with the top surface of the first sealing plate (27), one end of the spring piece (40) which is far away from the fixed block (39) is fixedly connected with the outer wall of the movable block (37), the bottom surface of the control plate (33) and the bottom surface of the control plate (20) is connected with the bottommost sliding plate (22) in the tower body (2) in the tower body (20), the control board (33) slides on the cylinder wall of the second ventilation cylinder (21) at the bottommost part in the tower body (2), and when the air pressure at the bottom of the tower body (2) is continuously enhanced after the first decompression assembly (16) moves, the control board (33) controls the first sealing plate (27) to slide.
2. The CCMP-based moisture separation rectifying column according to claim 1, wherein: rectifying mechanism is including setting up in reboiler (6) of base (1) top surface, peg graft in inlet pipe (3) at tower body (2) middle part, peg graft in discharging pipe (4) of tower body (2) bottom, set up in discharging pipe (4) keep away from tower body (2) one end and with reboiler (6) inside intercommunication first connecting pipe (5), peg graft in tower body (2) bottom and with reboiler (6) inside intercommunication second connecting pipe (7), set up in mounting bracket (13) of base (1) top surface, set up in condenser (9) of mounting bracket (13) top surface, set up in reflux pump (11) of mounting bracket (13) top surface, peg graft in tower body (2) top and with the inside intercommunication third connecting pipe (8) of condenser (9), peg graft in tower body (2) top and with reflux pump (11) inside intercommunication fourth connecting pipe (10), and peg graft in condenser (9) inside and with reflux pump (11) inside intercommunication fifth connecting pipe (12), and pressure release pipe (25) keep away from tower body (2) one end and third connecting pipe (8).
3. The CCMP-based moisture separation rectifying column according to claim 2, wherein: the second pressure reducing assembly (24) further comprises an annular plate (30) arranged on the inner wall of the pressure relief pipe (25), and a second sealing plate (31) arranged on the inner wall of the pressure relief pipe (25) and used for sealing the interior of the annular plate (30).
4. The CCMP-based moisture separation rectifying column according to claim 3, wherein: the second decompression assembly (24) further comprises a liquid storage pipe (28) inserted into the outer wall of the decompression pipe (25), and a sealing cover (29) arranged at the bottom end of the liquid storage pipe (28).
5. The CCMP-based moisture separation rectifying column according to claim 4, wherein: the driving assembly (32) further comprises a first elastic piece (42) arranged on the bottom surface of the bottommost tray (17) in the tower body (2) and a second elastic piece (43) arranged on the bottom surface of the control plate (33), one end, away from the bottommost tray (17) in the tower body (2), of the first elastic piece (42) is fixedly connected with the top surface of the control plate (33), and one end, away from the control plate (33), of the second elastic piece (43) is fixedly connected with the top surface of the bottommost sliding plate (22) in the tower body (2).
6. The CCMP-based moisture separation rectifying column according to claim 5, wherein: the outer wall of the mounting frame (13) is provided with a pre-cooling component (44).
7. The CCMP-based moisture separation rectifying column according to claim 6, wherein: the pre-cooling assembly (44) comprises a water tank (45) arranged on the outer wall of the mounting frame (13), a water pump (46) arranged on the outer wall of the water tank (45), a water guide pipe (48) arranged at the water inlet end of the water pump (46), and a cooling pipe (47) arranged at the water outlet end of the water pump (46), wherein the cooling pipe (47) is wound on the outer wall of the pressure relief pipe (25), one end, far away from the water pump (46), of the cooling pipe (47) is mutually communicated with the inside of the water tank (45), and one end, far away from the water pump (46), of the water guide pipe (48) is mutually communicated with the inside of the water tank (45).
8. A method for using a CCMP-based water separation rectifying tower, which adopts the CCMP-based water separation rectifying tower according to claim 7, and is characterized by comprising the following steps:
introducing CCMP solution into the tower body (2) through a feed pipe (3), controlling a rectifying mechanism to work, heating the CCMP solution by a reboiler (6), evaporating water in the CCMP solution into steam, guiding the steam back into the tower body (2) through a second connecting pipe (7), then, after the steam rises to the top of the tower body (2), entering the condenser (9) through a third connecting pipe (8), condensing the tower top steam to provide a tower top liquid phase product and reflux liquid, entering the reflux pump (11) through a fifth connecting pipe (12), refluxing the reflux liquid to the top of the tower body (2) through a fourth connecting pipe (10), and finally separating the water and other light components to the top of the tower, and collecting heavier CCMP components at the bottom of the tower;
In the initial state, steam passes through the first ventilation cylinder (20), when the air pressure at the bottom of the tower body (2) is increased, the steam can simultaneously pass through the first ventilation cylinder (20) and the second ventilation cylinder (21), the speed and the flow rate of the steam are increased, and at the moment, the control panel (33) does not move;
when the steam flows upwards from the inside of the first ventilation cylinder (20) and the second ventilation cylinder (21), the air pressure at the bottom of the tower body (2) is continuously increased, the sliding plate (22) is continuously slid, the movable block (37) is separated from the top block (35), the sliding plate (22) is continuously slid, meanwhile, the two extrusion blocks (41) are driven to pass through the mounting groove (36), the two extrusion blocks (41) respectively extrude the movable block (37) to drive the two movable blocks (37) to move towards opposite directions until the two movable blocks (37) move to be separated from the top block (35), in the process, the movable blocks (37) move to extrude the elastic sheet (40), so that the elastic potential energy is stored in the elastic sheet (40), then, the steam can drive the control plate (33) to move towards the direction close to the bottommost tray (17) in the tower body (2), the control plate (33) is moved to drive the connecting plate (34) to move, the first sealing plate (27) is driven to slide upwards, the pressure release pipe (25) is close to one end of the tower body (2), and the steam at the bottom of the tower body (2) can flow from the inside of the condenser (25) to realize pressure release;
When the air pressure at the bottom of the tower body (2) is reduced, the control plate (33), the sliding plate (22), the movable block (37) and the first sealing plate (27) are reset.
9. The method for using a CCMP-based water separation rectifying tower according to claim 8, wherein: before equipment works, an ice plate is placed in the water tank (45), water in the water tank (45) is cooled, then water in the water tank (45) can be introduced into the cooling pipe (47) through controlling the water pump (46) to work, the cooling pipe (47) is wound on the outer wall of the pressure relief pipe (25), and steam in the pressure relief pipe (25) is pre-cooled.
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| CN202311782280.1A CN117442991B (en) | 2023-12-22 | 2023-12-22 | CCMP production-based water separation rectifying tower and use method thereof |
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| CN116370996A (en) * | 2023-05-25 | 2023-07-04 | 河北新欣园能源股份有限公司 | High-efficient high-purity splitter of methyl tertiary butyl ether |
| CN116966621A (en) * | 2023-09-12 | 2023-10-31 | 山西振钢生物科技股份有限公司 | Continuous rectifying device of sebacic acid |
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