CN220026122U - Device for controlling temperature of anti-disproportionation reactor - Google Patents
Device for controlling temperature of anti-disproportionation reactor Download PDFInfo
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- CN220026122U CN220026122U CN202321327665.4U CN202321327665U CN220026122U CN 220026122 U CN220026122 U CN 220026122U CN 202321327665 U CN202321327665 U CN 202321327665U CN 220026122 U CN220026122 U CN 220026122U
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- heat exchange
- component
- temperature
- reflux
- assembly
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- 238000007323 disproportionation reaction Methods 0.000 title claims abstract description 58
- 238000000746 purification Methods 0.000 claims abstract description 16
- 230000008878 coupling Effects 0.000 claims abstract description 7
- 238000010168 coupling process Methods 0.000 claims abstract description 7
- 238000005859 coupling reaction Methods 0.000 claims abstract description 7
- 238000010992 reflux Methods 0.000 claims description 48
- 230000001105 regulatory effect Effects 0.000 claims description 23
- 238000001816 cooling Methods 0.000 claims description 20
- 230000001276 controlling effect Effects 0.000 claims description 18
- MROCJMGDEKINLD-UHFFFAOYSA-N dichlorosilane Chemical compound Cl[SiH2]Cl MROCJMGDEKINLD-UHFFFAOYSA-N 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 abstract description 4
- 229920005591 polysilicon Polymers 0.000 abstract description 4
- 230000002441 reversible effect Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- VXEGSRKPIUDPQT-UHFFFAOYSA-N 4-[4-(4-methoxyphenyl)piperazin-1-yl]aniline Chemical compound C1=CC(OC)=CC=C1N1CCN(C=2C=CC(N)=CC=2)CC1 VXEGSRKPIUDPQT-UHFFFAOYSA-N 0.000 description 12
- 239000005049 silicon tetrachloride Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 239000000203 mixture Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000001179 sorption measurement Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- ZDHXKXAHOVTTAH-UHFFFAOYSA-N trichlorosilane Chemical compound Cl[SiH](Cl)Cl ZDHXKXAHOVTTAH-UHFFFAOYSA-N 0.000 description 3
- 239000005052 trichlorosilane Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses a device for controlling the temperature of a reverse disproportionation reactor, relates to the technical field of polysilicon production equipment, and mainly aims to provide a device for controlling the temperature of the reverse disproportionation reactor, which can stabilize the reverse disproportionation inlet temperature and reduce the energy consumption. The main technical scheme of the utility model is as follows: an apparatus for controlling the temperature of an anti-disproportionation reactor, comprising: the coupling component is provided with a shell side component and a tube side component, the top of the purification tower is connected to one end of the tube side component, and the rectification tower is connected to two ends of the shell side component; the temperature control part, first heat transfer subassembly is connected in the other end of tube side subassembly, and the one end of backward flow subassembly is connected in first heat transfer subassembly, and the other end is connected in second heat transfer subassembly, and the one end of blender is connected in second heat transfer subassembly, and the other end is connected in anti-disproportionation reactor, and total accuse subassembly is connected in first heat transfer subassembly and second heat transfer subassembly. The utility model is mainly used for controlling the temperature.
Description
Technical Field
The utility model relates to the technical field of polysilicon production equipment, in particular to a device for controlling the temperature of an anti-disproportionation reactor.
Background
The polysilicon production process mainly adopts an improved Siemens method to produce polysilicon, and the anti-disproportionation device plays a very important role in the production process. The mode of operation of the anti-disproportionation device at the present stage mainly comprises the steps that silicon tetrachloride is separated and purified through a rectifying tower and then enters a feed mixer with dichlorosilane, and after the feed is mixed, the silicon tetrachloride enters an anti-disproportionation adsorption column to carry out disproportionation reaction, however, when a mixture enters the anti-disproportionation through the feed mixer, the temperature of an anti-disproportionation inlet is uncertain and cannot be controlled, so that the internal parameters of the anti-disproportionation are unstable, the disproportionation reaction is a reversible reaction, the conversion rate of the material is influenced when the parameters are unstable, and the conversion rate is reduced. The existing mode such as the method for preparing trichlorosilane and the equipment thereof disclosed in the patent number CN201310389455.2 can effectively control the temperature of the anti-disproportionation feed inlet by adding a preheater for increasing the feed temperature before the mixture enters the anti-disproportionation adsorption column and further controlling the temperature of the anti-disproportionation inlet, but the mode needs the preheater for providing a heat source, so that the production cost is increased.
Disclosure of Invention
In view of the above, an embodiment of the present utility model provides a device for controlling a temperature of a disproportionation reactor, and is mainly aimed at providing a device for controlling a temperature of a disproportionation reactor, which is capable of stabilizing a disproportionation inlet temperature and reducing energy consumption.
In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:
in one aspect, an embodiment of the present utility model provides an apparatus for controlling a temperature of an anti-disproportionation reactor, the apparatus comprising:
the coupling component comprises a purification tower, a rectifying tower and a reboiler, wherein the reboiler is provided with a shell side assembly and a tube side assembly, the top of the purification tower is connected to one end of the tube side assembly, and the rectifying tower is connected to two ends of the shell side assembly;
the temperature control component comprises a main control component, a first heat exchange component, a second heat exchange component, a reflux component, a mixer and an anti-disproportionation reactor, wherein the first heat exchange component is connected with the other end of the tube side component, one end of the reflux component is connected with the first heat exchange component, the other end of the reflux component is connected with the second heat exchange component, one end of the mixer is connected with the second heat exchange component, the other end of the mixer is connected with the anti-disproportionation reactor, and the main control component is connected with the first heat exchange component and the second heat exchange component.
Further, the first heat exchange assembly comprises a first heat exchanger, a first heat exchange pipeline, a first cooling pipeline, a first thermometer and a first regulating valve, the first heat exchanger comprises a first heat exchange shell side and a first heat exchange tube side, one end of the first heat exchange shell side is connected with the tube side assembly, the other end of the first heat exchange shell side is connected with the backflow assembly, the first cooling pipeline is connected with the first heat exchange tube side, the regulating valve is arranged on the first cooling pipeline, the first thermometer is arranged on the first heat exchange pipeline, and the total control assembly is connected with the first regulating valve and the first thermometer.
Further, the second heat exchange assembly comprises a second heat exchanger, a second cooling pipeline, a second thermometer and a second regulating valve, the second heat exchanger comprises a second heat exchange shell side and a second heat exchange tube side, one end of the second heat exchange shell side is connected with the reflux assembly, the other end of the second heat exchange shell side is connected with the mixer, the second cooling pipeline is connected with the second heat exchange tube side, the second regulating valve is arranged on the second cooling pipeline, the second thermometer is inserted into the bottom of the disproportionation reactor, and the total control assembly is connected with the second regulating valve and the second thermometer.
Further, the reflux assembly comprises a reflux tank, a centrifugal pump and a reflux pipeline, wherein the upper end of the reflux tank is connected with the first heat exchange shell pass, the other end of the reflux tank is connected with the centrifugal pump, one end of the reflux pipeline is connected with the centrifugal pump, and the other end of the reflux pipeline is connected with the second heat exchange shell pass.
Further, the upper portion of the mixer is provided with a first feed inlet, and the first feed inlet is connected with the dichlorosilane storage tank.
Further, the alarm part comprises a first alarm and a second alarm, wherein the first alarm is connected with the first thermometer and the master control assembly, and the second alarm is connected with the second thermometer and the master control assembly.
Compared with the prior art, the utility model has the following technical effects:
in the technical scheme provided by the embodiment of the utility model, the coupling component is used for heating silicon tetrachloride and comprises a purification tower, a rectifying tower and a reboiler, wherein the reboiler is provided with a shell side assembly and a tube side assembly, the top of the purification tower is connected with one end of the tube side assembly, and the rectifying tower is connected with two ends of the shell side assembly; the temperature control part is used for precisely controlling the temperature entering the anti-disproportionation reactor, and comprises a main control component, a first heat exchange component, a second heat exchange component, a reflux component, a mixer and an anti-disproportionation reactor, wherein the first heat exchange component is connected to the other end of the tube side component, one end of the reflux component is connected to the first heat exchange component, the other end of the reflux component is connected to the second heat exchange component, one end of the mixer is connected to the second heat exchange component, and the other end of the mixer is connected to the anti-disproportionation reactor. The prior art, for example, a method for preparing trichlorosilane and equipment thereof disclosed in patent number CN201310389455.2, increases a preheater for increasing the feeding temperature before the mixture enters an anti-disproportionation adsorption column, and further controls the temperature of an anti-disproportionation inlet, so that the temperature of an anti-disproportionation feed inlet can be effectively controlled, but the preheater is required to provide a heat source, so that the production cost is increased.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for controlling the temperature of an anti-disproportionation reactor according to an embodiment of the present utility model.
Detailed Description
The utility model is described in further detail below with reference to the drawings and examples.
In one aspect, as shown in fig. 1, an embodiment of the present utility model provides an apparatus for controlling a temperature of an anti-disproportionation reactor, the apparatus comprising:
the coupling component comprises a purification tower, a rectifying tower and a reboiler, wherein the reboiler is provided with a shell side assembly and a tube side assembly, the top of the purification tower is connected to one end of the tube side assembly, and the rectifying tower is connected to two ends of the shell side assembly;
the temperature control component comprises a main control component, a first heat exchange component, a second heat exchange component, a reflux component, a mixer and an anti-disproportionation reactor, wherein the first heat exchange component is connected to the other end of the tube side component, one end of the reflux component is connected to the first heat exchange component, the other end is connected to the second heat exchange component, one end of the mixer is connected to the second heat exchange component, the other end is connected to the anti-disproportionation reactor, and the main control component is connected to the first heat exchange component and the second heat exchange component.
In the technical scheme provided by the embodiment of the utility model, the coupling component is used for heating silicon tetrachloride and comprises a purification tower, a rectifying tower and a reboiler, wherein the reboiler is provided with a shell side assembly and a tube side assembly, the top of the purification tower is connected with one end of the tube side assembly, and the rectifying tower is connected with two ends of the shell side assembly; the temperature control part is used for precisely controlling the temperature entering the anti-disproportionation reactor, and comprises a main control component, a first heat exchange component, a second heat exchange component, a reflux component, a mixer and an anti-disproportionation reactor, wherein the first heat exchange component is connected to the other end of the tube side component, one end of the reflux component is connected to the first heat exchange component, the other end of the reflux component is connected to the second heat exchange component, one end of the mixer is connected to the second heat exchange component, and the other end of the mixer is connected to the anti-disproportionation reactor. The prior art, for example, a method for preparing trichlorosilane and equipment thereof disclosed in patent number CN201310389455.2, increases a preheater for increasing the feeding temperature before the mixture enters an anti-disproportionation adsorption column, and further controls the temperature of an anti-disproportionation inlet, so that the temperature of an anti-disproportionation feed inlet can be effectively controlled, but the preheater is required to provide a heat source, so that the production cost is increased.
The coupling component is used for heating silicon tetrachloride and comprises a purification tower, a rectifying tower and a reboiler, wherein the reboiler is provided with a shell side component and a tube side component, the top of the purification tower is connected with one end of the tube side component, the rectifying tower is connected with two ends of the shell side component, gas-phase silicon tetrachloride is output from the upper part of the purification tower, then the gas-phase silicon tetrachloride is subjected to heat exchange through the reboiler of the rectifying tower, and then enters the first heat exchange component; the temperature control component has the function of precisely controlling the temperature entering the anti-disproportionation reactor, the temperature control component comprises a main control component, a first heat exchange component, a second heat exchange component, a reflux component, a mixer and an anti-disproportionation reactor, wherein the first heat exchange component is connected with the other end of the tube side component, one end of the reflux component is connected with the first heat exchange component, the other end is connected with the second heat exchange component, one end of the mixer is connected with the second heat exchange component, the other end is connected with the anti-disproportionation reactor, the main control component is connected with the first heat exchange component and the second heat exchange component, the first heat exchange component is used for carrying out heat exchange on silicon tetrachloride, the first heat exchange component comprises a first heat exchanger, a first heat exchange pipeline, a first cooling pipeline, a first thermometer and a first regulating valve, the first heat exchanger comprises a first heat exchange shell side and a first heat exchange tube side, one end of the first heat exchange shell pass is connected to the tube pass assembly, the other end of the first heat exchange shell pass is connected to the reflux assembly, the first cooling pipeline is connected to the first heat exchange tube pass, the regulating valve is arranged on the first cooling pipeline, the first thermometer is arranged on the first heat exchange pipeline, the total control assembly is connected to the first regulating valve and the first thermometer, silicon tetrachloride enters the first heat exchange shell pass of the first heat exchanger after heat exchange of the reboiler, meanwhile, the first cooling pipeline conveys cooling water to the first heat exchange tube pass of the first heat exchanger, the first regulating valve has a pre-opening of 50%, meanwhile, the first thermometer detects the temperature in the first heat exchange pipeline in real time and uploads data to the total control assembly, after a set time, when the detection data of the first thermometer is lower than 85 ℃, the total control assembly controls the first regulating valve to reduce the opening, and when the detection data of the first thermometer is equal to 85 ℃, the total control assembly controls the first regulating valve to keep the current opening, when the detection data of the thermometer is higher than 85 ℃, the total control assembly controls the first regulating valve to increase the opening, thereby achieving the effect of accurately controlling the temperature entering the reflux assembly, liquid in the reflux assembly is conveyed to the second heat exchange assembly for secondary cooling, and concretely, the second heat exchange assembly comprises a second heat exchanger, a second cooling pipeline, a second thermometer and a second regulating valve, the second heat exchanger comprises a second heat exchange shell side and a second heat exchange tube side, one end of the second heat exchange shell side is connected to the reflux assembly, the other end is connected to the mixer, the second cooling pipeline is connected to the second heat exchange tube side, the second regulating valve is arranged on the second cooling pipeline, the second thermometer is inserted into the bottom of the anti-disproportionation reactor, the total control assembly is connected to the second regulating valve and the second thermometer, the liquid is discharged from the reflux assembly and enters the second heat exchange shell side of the second heat exchanger, meanwhile, the opening of the second regulating valve is 50%, the second thermometer detects the temperature of the anti-disproportionation reactor in advance, the temperature of the second heat exchange shell side is detected by the second thermometer, the temperature of the temperature is required to be higher than 60 ℃, the total control valve is not required to be higher than 60 ℃, the temperature of the total control assembly is required to be controlled by the temperature of the temperature controller, the total control assembly is reduced, and the temperature is reduced to reach the technical effect of 60, and the temperature is reduced, the temperature is reduced by the temperature of the temperature is required to be controlled by the temperature of the temperature control assembly.
Further, the reflux assembly comprises a reflux tank, a centrifugal pump and a reflux pipeline, wherein the upper end of the reflux tank is connected with the first heat exchange shell side, the other end of the reflux tank is connected with the centrifugal pump, one end of the reflux pipeline is connected with the centrifugal pump, and the other end of the reflux pipeline is connected with the second heat exchange shell side. In the embodiment, a reflux assembly is further defined, the reflux tank is used for maintaining heat balance in the tower, and meanwhile silicon tetrachloride discharged from the top of the purification tower is further purified and then conveyed into the second heat exchange shell pass through a centrifugal pump and a reflux pipeline, so that the technical effect of further purification is achieved.
Further, the upper portion of the mixer is provided with a first feed inlet which is connected with the dichlorosilane storage tank. In this embodiment, a mixer is further defined, and a first feed inlet is disposed at the upper portion of the mixer, so that dichlorosilane storage tank conveys dichlorosilane into the mixer through the first feed inlet, so that dichlorosilane and silicon tetrachloride are mixed, and the liquid after preliminary mixing enters the anti-disproportionation reactor, so that the technical effect of introducing the mixture of dichlorosilane and silicon tetrachloride into the anti-disproportionation reactor is achieved.
Further, the alarm part comprises a first alarm and a second alarm, wherein the first alarm is connected with the first thermometer and the master control assembly, and the second alarm is connected with the second thermometer and the master control assembly. In this embodiment, alarm component has been increased, alarm component's effect is provided alarming function, first alarm is connected in first thermometer and total accuse subassembly, when the detected data of first thermometer is less than 80 ℃, first alarm sends alarm information to total accuse subassembly, total accuse subassembly control first governing valve reduces the aperture, total accuse subassembly control first governing valve keeps current aperture, when the detected data of thermometer is higher than 90 ℃, first alarm sends alarm information to total accuse subassembly, total accuse subassembly control first governing valve increases the aperture, thereby reach the technological effect of quick warning.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (6)
1. An apparatus for controlling the temperature of an anti-disproportionation reactor, comprising:
the coupling component comprises a purification tower, a rectifying tower and a reboiler, wherein the reboiler is provided with a shell side assembly and a tube side assembly, the top of the purification tower is connected to one end of the tube side assembly, and the rectifying tower is connected to two ends of the shell side assembly;
the temperature control component comprises a main control component, a first heat exchange component, a second heat exchange component, a reflux component, a mixer and an anti-disproportionation reactor, wherein the first heat exchange component is connected with the other end of the tube side component, one end of the reflux component is connected with the first heat exchange component, the other end of the reflux component is connected with the second heat exchange component, one end of the mixer is connected with the second heat exchange component, the other end of the mixer is connected with the anti-disproportionation reactor, and the main control component is connected with the first heat exchange component and the second heat exchange component.
2. An apparatus for controlling the temperature of an anti-disproportionation reactor as claimed in claim 1,
the first heat exchange assembly comprises a first heat exchanger, a first heat exchange pipeline, a first cooling pipeline, a first thermometer and a first regulating valve, wherein the first heat exchanger comprises a first heat exchange shell side and a first heat exchange tube side, one end of the first heat exchange shell side is connected with the tube side assembly, the other end of the first heat exchange shell side is connected with the reflux assembly, the first cooling pipeline is connected with the first heat exchange tube side, the regulating valve is arranged on the first cooling pipeline, the first thermometer is arranged on the first heat exchange pipeline, and the total control assembly is connected with the first regulating valve and the first thermometer.
3. An apparatus for controlling the temperature of an anti-disproportionation reactor as claimed in claim 2, wherein,
the second heat exchange assembly comprises a second heat exchanger, a second cooling pipeline, a second thermometer and a second regulating valve, the second heat exchanger comprises a second heat exchange shell side and a second heat exchange tube side, one end of the second heat exchange shell side is connected with the reflux assembly, the other end of the second heat exchange shell side is connected with the mixer, the second cooling pipeline is connected with the second heat exchange tube side, the second regulating valve is arranged on the second cooling pipeline, the second thermometer is inserted into the bottom of the anti-disproportionation reactor, and the total control assembly is connected with the second regulating valve and the second thermometer.
4. An apparatus for controlling the temperature of an anti-disproportionation reactor according to claim 3,
the reflux assembly comprises a reflux tank, a centrifugal pump and a reflux pipeline, wherein the upper end of the reflux tank is connected with the first heat exchange shell pass, the other end of the reflux tank is connected with the centrifugal pump, one end of the reflux pipeline is connected with the centrifugal pump, and the other end of the reflux pipeline is connected with the second heat exchange shell pass.
5. An apparatus for controlling the temperature of a disproportionation reactor as claimed in claim 4, wherein,
the upper portion of the mixer is provided with a first feeding port, and the first feeding port is connected with a dichlorosilane storage tank.
6. An apparatus for controlling the temperature of a disproportionation reactor as claimed in any one of claims 3 to 5, further comprising:
the alarm part comprises a first alarm and a second alarm, wherein the first alarm is connected with the first thermometer and the master control assembly, and the second alarm is connected with the second thermometer and the master control assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327665.4U CN220026122U (en) | 2023-05-29 | 2023-05-29 | Device for controlling temperature of anti-disproportionation reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321327665.4U CN220026122U (en) | 2023-05-29 | 2023-05-29 | Device for controlling temperature of anti-disproportionation reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220026122U true CN220026122U (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321327665.4U Active CN220026122U (en) | 2023-05-29 | 2023-05-29 | Device for controlling temperature of anti-disproportionation reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220026122U (en) |
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2023
- 2023-05-29 CN CN202321327665.4U patent/CN220026122U/en active Active
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