CN108562173B - Phosphorus trichloride condenser - Google Patents
Phosphorus trichloride condenser Download PDFInfo
- Publication number
- CN108562173B CN108562173B CN201810308801.2A CN201810308801A CN108562173B CN 108562173 B CN108562173 B CN 108562173B CN 201810308801 A CN201810308801 A CN 201810308801A CN 108562173 B CN108562173 B CN 108562173B
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- Prior art keywords
- heat exchange
- phosphorus trichloride
- pipe box
- plate
- baffling
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B1/00—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser
- F28B1/02—Condensers in which the steam or vapour is separate from the cooling medium by walls, e.g. surface condenser using water or other liquid as the cooling medium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/22—Arrangements for directing heat-exchange media into successive compartments, e.g. arrangements of guide plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention provides a phosphorus trichloride condenser which comprises a heat exchange cylinder body, an upper pipe box and a lower pipe box, wherein a circulating water inlet is formed in the upper pipe box, and a circulating water outlet is formed in the bottom of the lower pipe box. The upper part of the heat exchange barrel is provided with a steam inlet, the lower part of the heat exchange barrel is provided with a phosphorus trichloride liquid phase outlet, gas-phase phosphorus trichloride enters the heat exchange barrel through the steam inlet, and is cooled into a liquid phase by cooling water in the heat exchange pipe and then is discharged through the phosphorus trichloride liquid phase outlet. And a heat exchange tube and a baffling heat exchange plate are arranged in the heat exchange cylinder. The baffling heat exchange plate is connected with the inner wall of the heat exchange cylinder body, the baffling heat exchange plate is of a hollow structure, and the baffling plate is communicated with the heat exchange tube. The heat exchange baffle plate can play roles in baffling and heat exchange, so that the condensing effect of the gas-phase phosphorus trichloride is enhanced, and the condensing efficiency of the gas-phase phosphorus trichloride is improved.
Description
Technical Field
The invention belongs to the technical field of condensers, and particularly relates to a phosphorus trichloride condenser.
Background
The existing phosphorus trichloride tower top condenser in the phosphorus trichloride production enterprise is a horizontal shell-and-tube condenser, and the cooling water process for cooling the phosphorus gas is in countercurrent arrangement, so that hidden danger that the countercurrent water pressure is larger than the equipment shell side gas phase pressure exists, the existing condenser has poor heat exchange effect and low condensation efficiency, and the phosphorus trichloride condenser is necessary to be improved.
Disclosure of Invention
Based on the prior art, the invention aims to provide a phosphorus trichloride condenser so as to solve the technical problems that the existing phosphorus trichloride tower top condenser has hidden danger that the reverse water pressure is larger than the equipment shell side gas phase pressure and the heat exchange effect is poor.
In order to achieve the above purpose, the invention adopts the following technical scheme: a phosphorus trichloride condenser comprises a heat exchange cylinder, an upper pipe box and a lower pipe box; the upper pipe box is connected with the upper end of the heat exchange cylinder, and the lower pipe box is connected with the lower end of the heat exchange cylinder. The upper part of the upper pipe box is provided with a circulating water inlet, and the bottom of the lower pipe box is provided with a circulating water outlet; the upper part of the heat exchange cylinder is provided with a steam inlet, and the lower part of the heat exchange cylinder is provided with a phosphorus trichloride liquid phase outlet; a heat exchange tube and a baffling heat exchange plate are arranged in the heat exchange cylinder, the upper end of the heat exchange tube is communicated with the upper tube box, and the lower end of the heat exchange tube is communicated with the lower tube box; the baffling heat exchange plate is connected with the inner wall of the heat exchange cylinder body, the baffling heat exchange plate is of a hollow structure, and the baffling plate is communicated with the heat exchange tube.
Further, the baffling heat exchange plates are of semicircular structures, the number of the baffling heat exchange plates is multiple, and the baffling heat exchange plates are alternately arranged on the left side and the right side in the heat exchange cylinder body.
Further, the baffling heat exchange plate is inclined downwards, the cross section of the baffling heat exchange plate forms a certain included angle with the horizontal surface layer, and the degree of the included angle is 0-5 degrees.
Further, the baffling heat exchange plate is of a round structure, and a plurality of openings are formed in the circumference of the baffling heat exchange plate.
Further, the number of the baffling heat exchange plates is multiple, and the baffling heat exchange plates are arranged in parallel and equidistant.
Further, the top of the heat exchange cylinder body is provided with an exhaust port.
Further, a distributor is arranged in the upper pipe box and comprises a bottom plate and distribution pipes arranged on the bottom plate, the distribution pipes are communicated with the heat exchange pipes, and the number and the positions of the distribution pipes are in one-to-one correspondence with the heat exchange pipes.
Further, an overflow port is arranged at the upper middle part of the lower pipe box.
Further, a sight glass opening is also arranged on the lower pipe box.
Further, the upper pipe box is also provided with a ventilation port.
Compared with the prior art, the invention has the following beneficial effects:
the phosphorus trichloride condenser provided by the invention is a vertical condenser and comprises a heat exchange cylinder, an upper pipe box and a lower pipe box, wherein the upper pipe box is connected with the upper end of the heat exchange cylinder, and the lower pipe box is connected with the lower end of the heat exchange cylinder. The upper pipe box upper portion is provided with the circulating water entry, lower pipe box bottom is provided with the circulating water export, and circulating cooling water passes through the circulating water entry gets into go up the pipe box, the rethread in the heat exchange tube with the heat exchange tube is interior phosphorus trichloride steam carries out the heat transfer, gets into after the heat transfer down the pipe box, and pass through the circulating water export discharge. The upper part of the heat exchange barrel is provided with a steam inlet, the lower part of the heat exchange barrel is provided with a phosphorus trichloride liquid phase outlet, gas-phase phosphorus trichloride enters the heat exchange barrel through the steam inlet, and is cooled into a liquid phase by cooling water in the heat exchange pipe and then is discharged through the phosphorus trichloride liquid phase outlet. The heat exchange cylinder is internally provided with a heat exchange tube and a baffling heat exchange plate, the upper end of the heat exchange tube is communicated with the upper tube box, and the lower end of the heat exchange tube is communicated with the lower tube box and is used for accommodating cooling circulating water and exchanging heat with gas-phase phosphorus trichloride. The baffling heat exchange plate is connected with the inner wall of the heat exchange cylinder body, the baffling heat exchange plate is of a hollow structure, and the baffling plate is communicated with the heat exchange tube. The heat exchange baffle plate plays a role in baffling on one hand, and changes the flowing direction of the gas-phase phosphorus trichloride in the heat exchange cylinder body so as to enhance the condensing effect of the gas-phase phosphorus trichloride. On the other hand, the heat exchange baffle plate is hollow and communicated with the heat exchange tube, so that a cooling medium is also arranged in the heat exchange baffle plate, the condensing effect of the gas-phase phosphorus trichloride can be further enhanced, and the condensing efficiency of the gas-phase phosphorus trichloride is improved.
Drawings
FIG. 1 is a schematic view of a phosphorus trichloride condenser of the present invention;
FIG. 2 is a schematic view of another embodiment of a phosphorus trichloride condenser of the present invention;
FIG. 3 is a schematic view of another embodiment of a phosphorus trichloride condenser of the present invention;
wherein, 1 is the heat exchange cylinder, 11 is the steam inlet, 12 is the phosphorus trichloride liquid phase export, 13 is the heat exchange tube, 14 is the baffling heat exchange plate, 15 is the tail gas mouth, 2 is the upper tube box, 21 is the circulating water entry, 22 is the bottom plate, 23 is the distribution pipe, 24 is the scavenge port, 3 is the lower tube box, 31 the circulating water export, 32 is the overflow port, 33 is the sight glass mouth.
Detailed Description
The structure and process flow of the present invention will be described in further detail with reference to the accompanying drawings.
1 is a heat exchange cylinder body 1, 11 is a steam inlet 11, 12 is a phosphorus trichloride liquid phase outlet 12, 13 is a heat exchange tube 13, 14 is a baffling heat exchange plate 14, 15 is a tail gas port 15,2 is an upper tube box 2, 21 is a circulating water inlet 21, 22 is a bottom plate 22, 23 is a distribution tube 23, 24 is a ventilation port 24,3 is a lower tube box 3, 31 is a circulating water outlet 31, 32 is an overflow port 32, and 33 is a sight glass port 33.
The invention provides a phosphorus trichloride condenser, which is shown in figure 1, and comprises a heat exchange cylinder 1, an upper pipe box 2 and a lower pipe box 3; the upper pipe box 2 is connected with the upper end of the heat exchange cylinder 1, and the lower pipe box 3 is connected with the lower end of the heat exchange cylinder 1. The upper part of the upper pipe box 2 is provided with a circulating water inlet 21, and the bottom of the lower pipe box 3 is provided with a circulating water outlet 31; the upper part of the heat exchange cylinder 1 is provided with a steam inlet 11, and the lower part of the heat exchange cylinder 1 is provided with a phosphorus trichloride liquid phase outlet 12; a heat exchange tube 13 and a baffling heat exchange plate 14 are arranged in the heat exchange cylinder 1, the upper end of the heat exchange tube 13 is communicated with the upper tube box 2, and the lower end of the heat exchange tube 13 is communicated with the lower tube box 3; the baffling heat exchange plate 14 is connected with the inner wall of the heat exchange cylinder body 1, the baffling heat exchange plate 14 is of a hollow structure, and the baffling heat exchange plate 14 is communicated with the heat exchange tube 13.
The phosphorus trichloride condenser provided by the invention is a vertical condenser and comprises a heat exchange cylinder body 1, an upper pipe box 2 and a lower pipe box 3, wherein the upper pipe box 2 is connected with the upper end of the heat exchange cylinder body 1, and the lower pipe box 3 is connected with the lower end of the heat exchange cylinder body 1. The upper part of the upper pipe box 2 is provided with a circulating water inlet 21, the bottom of the lower pipe box 3 is provided with a circulating water outlet 31, circulating cooling water enters the upper pipe box 2 through the circulating water inlet 21, and then exchanges heat with phosphorus trichloride steam in the heat exchange barrel 1 in the heat exchange pipe 13 in the heat exchange barrel 1, enters the lower pipe box 3 after exchanging heat, and is discharged through the circulating water outlet 31. The upper part of the heat exchange barrel 1 is provided with a steam inlet 11, the lower part of the heat exchange barrel 1 is provided with a phosphorus trichloride liquid phase outlet 12, gas-phase phosphorus trichloride enters the heat exchange barrel 1 through the steam inlet 11, is cooled into a liquid phase by cooling water in a heat exchange pipe 13, and is discharged through the phosphorus trichloride liquid phase outlet 12. The heat exchange cylinder 1 is internally provided with a heat exchange tube 13 and a baffling heat exchange plate 14, the upper end of the heat exchange tube 13 is communicated with the upper tube box 2, and the lower end of the heat exchange tube 13 is communicated with the lower tube box 3 and is used for accommodating cooling circulating water and exchanging heat with gas-phase phosphorus trichloride. The baffling heat exchange plate 14 is connected with the inner wall of the heat exchange cylinder body 1, the baffling heat exchange plate 14 is of a hollow structure, and the baffling heat exchange plate 14 is communicated with the heat exchange tube 13. The heat exchange baffle plate plays a role in baffling on one hand, and changes the flowing direction of the gas-phase phosphorus trichloride in the heat exchange cylinder body 1 so as to enhance the condensing effect of the gas-phase phosphorus trichloride. On the other hand, the baffling heat exchange plate 14 is of a hollow structure and is communicated with the heat exchange tube 13, so that a cooling medium is also arranged in the baffling heat exchange plate 14, the condensing effect of the gas-phase phosphorus trichloride can be further enhanced, and the condensing efficiency of the gas-phase phosphorus trichloride is improved.
In one embodiment of the present invention, preferably, as shown in fig. 1, the heat exchange baffle plates 14 have a semicircular structure, and the number of the heat exchange baffle plates 14 is plural, and the plurality of heat exchange baffle plates 14 are alternately disposed at the left side and the right side in the heat exchange cylinder 1.
In this embodiment, the number of the heat exchange baffle plates 14 is plural, and the heat exchange baffle plates 14 are in a semicircular structure and are alternately arranged on the left side and the right side in the heat exchange cylinder 1, so that the movement direction of the gas phase phosphorus trichloride in the heat exchange cylinder 1 can be continuously changed, and the condensation effect is enhanced.
In one embodiment of the present invention, preferably, as shown in fig. 1 and 2, the heat exchange baffle plate 14 is inclined downward and the cross section of the heat exchange baffle plate 14 forms an angle with the horizontal plane, and the degree of the angle is 0-5 °.
In this embodiment, the baffle heat exchange plate 14 is inclined downward by an angle of 0-5 °, so that the gas-phase phosphorus trichloride can quickly flow to the bottom of the heat exchange cylinder 1 after being condensed on the baffle heat exchange plate 14 and is discharged from the phosphorus trichloride liquid-phase outlet 12, thereby avoiding stagnation of the liquid-phase phosphorus trichloride.
In one embodiment of the present invention, preferably, as shown in fig. 3, the heat exchange baffle plate 14 has a circular structure, and a plurality of openings are provided on the circumference of the heat exchange baffle plate 14.
In this embodiment, the heat exchange baffle plate 14 may also have a circular structure, and a plurality of openings are formed on the circumference of the heat exchange baffle plate 14, and the gas phase phosphorus trichloride can flow down through the openings on the circumference of the heat exchange baffle plate 14 after being condensed on the heat exchange baffle plate 14. The openings also provide space for the flow of the gaseous phosphorus trichloride. The opening can be an arc opening or a triangular opening and other structures.
In one embodiment of the present invention, preferably, the number of the heat exchange baffle plates 14 is plural, and the plural heat exchange baffle plates 14 are arranged in parallel and at equal intervals.
In this embodiment, when the heat exchange baffle plates 14 have a circular structure, the number of the heat exchange baffle plates 14 is plural, and the heat exchange baffle plates 14 are arranged in parallel and equidistant, so that the heat exchange baffle plates 14 are uniformly baffled and condensed, and the overall heat exchange efficiency can be improved.
In one embodiment of the present invention, preferably, the top of the heat exchange cylinder 1 is provided with a gas outlet 15.
In this embodiment, the top of the heat exchange cylinder 1 is further provided with a gas outlet 15 to discharge the gas-phase phosphorus trichloride which cannot be cooled into a liquid phase in time in the heat exchange cylinder 1, so as to avoid the influence of high pressure generated in the heat exchange cylinder 1 on the safety of the condensation process.
In one embodiment of the present invention, preferably, a distributor is disposed in the upper tube box 2, the distributor includes a bottom plate 22 and distribution tubes 23 disposed on the bottom plate 22, the distribution tubes 23 are in communication with the heat exchange tubes 13, and the number and positions of the distribution tubes 23 are in one-to-one correspondence with the heat exchange tubes 13.
In this embodiment, a distributor is disposed in the upper tube box 2, and the distributor includes a bottom plate 22 and a distribution tube 23 disposed on the bottom plate 22, where the distribution tube 23 is in communication with the heat exchange tube 13. The cooling water flows into the bottom plate 22 of the distributor from the circulating water inlet 21, when the depth of the water on the bottom plate 22 exceeds the height of the distributing pipe 23, the cooling water overflows into the distributing pipe 23, flows down the pipe wall of the distributing pipe 23, flows down the heat exchange pipe 13, and flows down the pipe wall of the heat exchange pipe 13 for heat exchange.
In one embodiment of the invention, the upper middle part of the down tube box 3 is preferably provided with an overflow 32.
In this embodiment, the upper middle part of the lower pipe box 3 is provided with an overflow port 32, when the cooling water in the lower pipe box 3 is too much to reach a certain liquid level and can not be discharged rapidly, the overflow port 32 can help to discharge the excessive cooling water in time, so that the problem that the water after heat exchange in the heat exchange pipe 13 can not be discharged rapidly and the condensation effect is affected is avoided.
In one embodiment of the invention, preferably, the down tube box 3 is further provided with a view port 33.
In this embodiment, the lower tube box 3 is further provided with a viewing port 33, and the level and outflow of the cooling water in the lower tube box 3 can be observed through the viewing port 33, so that the condensation process can be better controlled.
In one embodiment of the present invention, preferably, a ventilation port 24 is further provided on the upper tube box 2.
In this embodiment, the upper tube box 2 is further provided with a ventilation port 24, so that once the overheat vaporization of the cooling water in the heat exchange tube 13 occurs, the vaporized water vapor can be discharged through the ventilation port 24, and accidents caused by the excessive pressure in the heat exchange tube 13 or the upper tube box 2 are avoided.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present invention, and the present invention is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present invention has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The phosphorus trichloride condenser is characterized by comprising a heat exchange cylinder, an upper pipe box and a lower pipe box; the upper pipe box is connected with the upper end of the heat exchange cylinder, and the lower pipe box is connected with the lower end of the heat exchange cylinder;
the upper part of the upper pipe box is provided with a circulating water inlet, and the bottom of the lower pipe box is provided with a circulating water outlet;
the upper part of the heat exchange cylinder is provided with a steam inlet, and the lower part of the heat exchange cylinder is provided with a phosphorus trichloride liquid phase outlet; a heat exchange tube and a baffling heat exchange plate are arranged in the heat exchange cylinder, the upper end of the heat exchange tube is communicated with the upper tube box, and the lower end of the heat exchange tube is communicated with the lower tube box; the baffling heat exchange plate is connected with the inner wall of the heat exchange cylinder body, the baffling heat exchange plate is of a hollow structure, and the baffling heat exchange plate is communicated with the heat exchange tube;
the upper middle part of the lower pipe box is provided with an overflow port, the lower pipe box is also provided with a sight glass port, and the upper pipe box is also provided with a ventilation port.
2. The phosphorus trichloride condenser of claim 1, wherein the baffled heat exchanger plates are of a semicircular structure, the number of the baffled heat exchanger plates is plural, and the plurality of the baffled heat exchanger plates are alternately arranged on the left side and the right side in the heat exchanger cylinder.
3. The phosphorus trichloride condenser of claim 1 or 2, wherein the baffled heat exchanger plate is inclined downward and the cross section of the baffled heat exchanger plate forms an angle with the horizontal plane layer, the angle having a degree of 0-5 °.
4. The phosphorus trichloride condenser of claim 1, wherein the baffled heat exchanger plate is of a circular structure and a plurality of openings are provided on the circumference of the baffled heat exchanger plate.
5. The phosphorus trichloride condenser of claim 4, wherein the number of said heat transfer baffles is plural, and a plurality of said heat transfer baffles are disposed in parallel and equidistant.
6. The phosphorus trichloride condenser of claim 1, wherein a gas vent is provided at the top of the heat exchange cylinder.
7. The phosphorus trichloride condenser of claim 1, wherein a distributor is arranged in the upper pipe box, the distributor comprises a bottom plate and distribution pipes arranged on the bottom plate, the distribution pipes are communicated with the heat exchange pipes, and the number and the positions of the distribution pipes are in one-to-one correspondence with the heat exchange pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308801.2A CN108562173B (en) | 2018-04-09 | 2018-04-09 | Phosphorus trichloride condenser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810308801.2A CN108562173B (en) | 2018-04-09 | 2018-04-09 | Phosphorus trichloride condenser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108562173A CN108562173A (en) | 2018-09-21 |
| CN108562173B true CN108562173B (en) | 2023-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810308801.2A Active CN108562173B (en) | 2018-04-09 | 2018-04-09 | Phosphorus trichloride condenser |
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| Country | Link |
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| CN (1) | CN108562173B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112121735A (en) * | 2020-09-02 | 2020-12-25 | 衡阳百赛化工实业有限公司 | Retrieve device of thick iodine in secondary zinc oxide |
| CN115752036B (en) * | 2022-11-16 | 2023-08-18 | 广东捷玛节能科技股份有限公司 | Efficient energy-saving sewage treatment heat exchanger |
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| US3735808A (en) * | 1970-07-01 | 1973-05-29 | Sir Soc Italiana Resine Spa | Heat-exchanger for desalting sea water |
| JP2000028278A (en) * | 1998-07-14 | 2000-01-28 | Hitachi Ltd | Shell and tube type heat exchanger |
| CN202692758U (en) * | 2012-07-03 | 2013-01-23 | 福建富润建材科技有限公司 | Cement grinding aid afterheat water cooling device |
| CN104437269A (en) * | 2013-09-24 | 2015-03-25 | 中国石油化工股份有限公司 | Tubular reactor for producing vinyl acetate and vinyl acetate production method |
| CN204933425U (en) * | 2015-09-01 | 2016-01-06 | 云南大为恒远化工有限公司 | A kind of calandria type fixed bed reactor of benzene oxidatoin cis-butenedioic anhydride |
| CN205607186U (en) * | 2016-05-09 | 2016-09-28 | 汇智工程科技有限公司 | Novel phosphorus trichloride condenser |
| CN206281388U (en) * | 2016-12-01 | 2017-06-27 | 安徽科达洁能股份有限公司 | Shell-and-tube heat exchanger |
| CN208108857U (en) * | 2018-04-09 | 2018-11-16 | 江苏安邦电化有限公司 | A kind of phosphorus trichloride condenser |
-
2018
- 2018-04-09 CN CN201810308801.2A patent/CN108562173B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3735808A (en) * | 1970-07-01 | 1973-05-29 | Sir Soc Italiana Resine Spa | Heat-exchanger for desalting sea water |
| JP2000028278A (en) * | 1998-07-14 | 2000-01-28 | Hitachi Ltd | Shell and tube type heat exchanger |
| CN202692758U (en) * | 2012-07-03 | 2013-01-23 | 福建富润建材科技有限公司 | Cement grinding aid afterheat water cooling device |
| CN104437269A (en) * | 2013-09-24 | 2015-03-25 | 中国石油化工股份有限公司 | Tubular reactor for producing vinyl acetate and vinyl acetate production method |
| CN204933425U (en) * | 2015-09-01 | 2016-01-06 | 云南大为恒远化工有限公司 | A kind of calandria type fixed bed reactor of benzene oxidatoin cis-butenedioic anhydride |
| CN205607186U (en) * | 2016-05-09 | 2016-09-28 | 汇智工程科技有限公司 | Novel phosphorus trichloride condenser |
| CN206281388U (en) * | 2016-12-01 | 2017-06-27 | 安徽科达洁能股份有限公司 | Shell-and-tube heat exchanger |
| CN208108857U (en) * | 2018-04-09 | 2018-11-16 | 江苏安邦电化有限公司 | A kind of phosphorus trichloride condenser |
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| CN108562173A (en) | 2018-09-21 |
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