CN214209474U - Reboiler device for sulfur hexafluoride - Google Patents
Reboiler device for sulfur hexafluoride Download PDFInfo
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- CN214209474U CN214209474U CN202022707250.2U CN202022707250U CN214209474U CN 214209474 U CN214209474 U CN 214209474U CN 202022707250 U CN202022707250 U CN 202022707250U CN 214209474 U CN214209474 U CN 214209474U
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Abstract
The utility model discloses a reboiler device for sulfur hexafluoride, which comprises a hot water tank, a warm water tank and a reboiler; the hot water tank comprises a first water inlet end and a first water outlet end; the warm water tank comprises a third water inlet end, a fourth water inlet end, a second water outlet end and a third water outlet end; the reboiler comprises a fifth water inlet end and a fourth water outlet end; the first water inlet end is connected with the second water outlet end through a first pipeline, the first water outlet end is connected with the third water inlet end through a second pipeline, the third water outlet end is connected with the fifth water inlet end through a third pipeline, and the sixth water outlet end is connected with the fourth water inlet end through a fourth pipeline. Above-mentioned technical scheme utilizes the hot water of hot-water tank to heat the reboiler, and then replaces traditional steam heating or electrical heating, and then reduces hot-water tank temperature, has provided the required heat of rectification again, realizes energy-conserving and the purpose that reduces the consumption.
Description
Technical Field
The utility model relates to a sulfur hexafluoride preparation field especially relates to a reboiler device for sulfur hexafluoride.
Background
The production process of sulfur hexafluoride (chemical formula: SF6) comprises the processes of electrolysis, reaction, leaching, adsorption, rectification and the like. The reboiler heating of preparation SF6 adopts steam heating and electrical heating mixed mode at present, adopts steam heating when steam is sufficient, uses electrical heating when steam is not enough or does not have steam. The steam consumption is about 150Kg per hour calculated by adopting the steam heating completely, and 1080 tons of steam is consumed annually. Therefore, the consumption of the heating mode is huge, and the production cost is high while energy is wasted.
SUMMERY OF THE UTILITY MODEL
Therefore, a reboiler device for sulfur hexafluoride is needed to be provided, and the problem that the reboiler in the rectification process consumes excessive energy in the process of preparing SF6 is solved.
In order to achieve the above object, the present embodiment provides a reboiler apparatus for sulfur hexafluoride, including a hot water tank, a warm water tank, and a reboiler;
the hot water tank comprises a first water inlet end and a first water outlet end;
the warm water tank comprises a third water inlet end, a fourth water inlet end, a second water outlet end and a third water outlet end;
the reboiler comprises a fifth water inlet end and a fourth water outlet end;
the first water inlet end is connected with the second water outlet end through a first pipeline, the first water outlet end is connected with the third water inlet end through a second pipeline, the third water outlet end is connected with the fifth water inlet end through a third pipeline, and the fourth water outlet end is connected with the fourth water inlet end through a fourth pipeline.
Further, the hot water tank further comprises a second water inlet end, and the reboiler device further comprises a temperature sensor;
the second water inlet end is connected with the first water outlet end through a fifth pipeline;
the temperature sensor is arranged at the intersection of the second pipeline and the fifth pipeline;
and valves are arranged on the second pipeline and the fifth pipeline.
Further, the valve on the fifth pipeline is a backpressure valve.
Further, the valve on the second pipeline is a self-regulating valve.
Further, a valve is arranged on the first pipeline; or:
a valve is arranged on the second pipeline; or:
a valve is arranged on the third pipeline; or:
and a valve is arranged on the fourth pipeline.
Further, a pump is also included;
the pump is arranged on the first pipeline; or:
the pump is arranged on the second pipeline; or:
the pump is arranged on the third pipeline; or:
the pump is disposed on the fourth pipe.
Further, a rectifying tower is arranged on one side of the reboiler, and a tower kettle of the rectifying tower is connected with the reboiler.
Be different from prior art, above-mentioned technical scheme utilizes the hot water in hot water tank to heat the reboiler, and then replaces traditional steam heating or electrical heating, has following advantage:
in the process of electrolysis production, a large amount of heat is generated, and the temperature of the electrolysis process is required to be controlled at 85 +/-2 ℃, so that hot water at 70 +/-2 ℃ is required to cool the electrolytic cell. In order to maintain the temperature of the hot water not to rise any more as the production progresses, the temperature of the hot water in the hot water tank needs to be reduced, so that the hot water tank does not need another heating unit to maintain the temperature of the hot water. The temperature of the hot water in the hot water tank is (70 +/-2) DEG C, the hot water cools the electrolytic tank, the temperature of the warm water is 30-60 ℃, and the reboiler can be heated. The hot water in the hot water tank is conveyed to the reboiler and the warm water tank, the temperature of the reboiler and the warm water tank can be controlled, the temperature of the hot water tank is further reduced, heat required by rectification is provided, and the purposes of saving energy and reducing power consumption are achieved.
Drawings
Fig. 1 is a schematic structural diagram of a reboiler apparatus according to the present embodiment.
Description of reference numerals:
1. a hot water tank;
11. a first water inlet end; 12. a second water inlet end; 13. a first water outlet end;
2. a warm water tank;
21. a third water inlet end; 22. a fourth water inlet end; 23. a second water outlet end; 24. a third water outlet end;
3. a reboiler;
31. a fifth water inlet end; 32. a fourth water outlet end;
4. a valve;
41. a self-regulating valve; 42. a back pressure valve;
5. and (4) a pump.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1, the present embodiment provides a reboiler apparatus for sulfur hexafluoride, including a hot water tank 1, a warm water tank 2, and a reboiler 3. The hot water tank 1 comprises a first water inlet end 11 and a first water outlet end 12, and the first water inlet end 11 and the first water outlet end 12 are used as passages for fluid to enter and exit the hot water tank. The warm water tank 2 comprises a third water inlet end 21, a fourth water inlet end 22, a second water outlet end 23 and a third water outlet end 24, wherein the third water inlet end 21, the fourth water inlet end 22, the second water outlet end 23 and the third water outlet end 24 are used as channels for fluid to enter and exit the warm water tank. The reboiler 3 comprises a fifth water inlet end 31 and a fourth water outlet end 32, the fifth water inlet end 31 and the fourth water outlet end 32 being used as a passage for fluid to and from the reboiler. The first water inlet end 11 is connected with the second water outlet end 23 through a first pipeline, and the warm water in the warm water tank 2 flows into the hot water tank 1 through the first pipeline. The first water outlet end 13 is connected to the third water inlet end 21 through a second pipeline, and the hot water in the hot water tank 1 flows into the warm water tank 2 through the second pipeline. The third water outlet end 23 is connected with the fifth water inlet end 31 through a third pipeline, and the warm water in the warm water tank 2 flows into the reboiler 3 through the third pipeline. The fourth water outlet end is connected to the fourth water inlet end 22 through a fourth pipe, so that the water in the reboiler 3 flows into the warm water tank 2.
The heating of the reboiler in the prior art adopts a mixed operation mode of steam heating and electric heating, so that the consumption is huge, and the production cost is high. According to the technical scheme, the reboiler is heated by using hot water in the hot water tank, so that the traditional steam heating or electric heating is replaced. The SF6 production process comprises the steps of electrolysis, reaction, leaching, adsorption, rectification and the like. The hot water tank belongs to the equipment used in SF6 electrolysis process, and the reboiler and the warm water tank belong to the equipment used in rectification process. In the electrolytic production process, a large amount of heat is generated, and the temperature of the electrolytic process is required to be controlled at (85 +/-2) DEG C, so that hot water at (70 +/-2) DEG C is required to cool the electrolytic cell. In order to maintain the temperature of the hot water not to rise any more as the production progresses, the temperature of the hot water in the hot water tank needs to be reduced, so that the hot water tank does not need another heating unit to maintain the temperature of the hot water. The temperature of the hot water in the hot water tank is (70 +/-2) DEG C, the hot water cools the electrolytic tank, the temperature of the warm water is 30-60 ℃, and the reboiler can be heated. The hot water in the hot water tank is conveyed to the reboiler and the warm water tank, the temperature of the reboiler and the warm water tank can be controlled, the temperature of the hot water tank is further reduced, heat required by rectification is provided, and the purposes of saving energy and reducing power consumption are achieved.
In this embodiment, in order to detect the temperature of the hot water coming out of the first outlet end, the hot water tank further comprises a second inlet end 12, and the reboiler device further comprises a temperature sensor. The second water inlet end 12 is connected with the first water outlet end 13 through a fifth pipeline, and the temperature sensor is arranged at the junction of the second pipeline and the fifth pipeline. The second pipeline and the fifth pipeline are both connected to the first water outlet end, the temperature sensor is preferably arranged at the position between the junction of the second pipeline and the fifth pipeline and the first water outlet end, so that the temperature sensor detects the temperature of hot water coming out of the first water outlet end, when the temperature of the hot water coming out of the first water outlet end is too high or too low, the valve on the fifth pipeline is opened, the valve on the second pipeline is closed, and the hot water coming out of the first water outlet end flows back to the hot water tank.
Of course, a valve is arranged on the first pipeline; a valve can also be arranged on the second pipeline; a valve can also be arranged on the third pipeline; the fourth pipeline can also be provided with a valve.
The valve 4 is a component for controlling the opening and closing of the pipeline so as to control the flow of fluid in the pipeline, the valve can be a gate valve, a stop valve, a back pressure valve, a ball valve or a butterfly valve and the like, the valves in the forms can be used for changing the section of a passage and the flowing direction of a medium, and the valve has the functions of diversion, stopping, throttling, non-return, diversion, overflow pressure relief and the like.
In the preferred embodiment, the valve on the fifth conduit is a backpressure valve 42. When the volume of hot water used on the fourth pipeline or the fifth pipeline is extremely small, the pump at the position between the intersection of the second pipeline and the fifth pipeline and the first water outlet end can be subjected to pressure holding to cause an accident, and the back pressure valve can automatically adjust the outlet pressure of the pump, so that the accident is avoided. After the backpressure valve is set, manual adjustment or intervention is not needed.
In the preferred embodiment, the valve on the second conduit is a self-regulating valve 41. The reboiler is influenced by the material components and the cold quantity of the rectifying tower, the temperature in the reboiler can fluctuate, and the self-regulating valve can automatically regulate the hot water delivery quantity according to the temperature of the reboiler so as to achieve the purpose of controlling the temperature of the reboiler.
In this embodiment, a pump 5 is further included to better pump the fluid in the pipeline. The pump 5 is arranged on the first pipeline; or: the pump 5 is arranged on the second pipeline; or: the pump 5 is arranged on the third pipeline; or: the pump 5 is arranged on the fourth pipeline; or: the pump 5 is provided on the fifth pipe. Since the second and fifth conduits are in communication, the pump 5 may be arranged at a position between the junction of the second and fifth conduits to the first outlet end. The pump 5 may be a centrifugal pump, a circulation pump, a submerged pump, a jet pump, or the like.
In this embodiment, a rectifying tower is disposed on one side of the reboiler, and a kettle of the rectifying tower is connected to the reboiler. The reboiler is mostly used with the rectifying tower: the reboiler is a special heat exchanger that can exchange heat with a vaporization space. The utility model discloses also improve the part of reboiler. Warm water in the warm water tank is conveyed to the reboiler through a pump on the third pipeline, the reboiler and the tower kettle of the rectifying tower, and the warm water returns to the warm water tank after heat exchange is completed.
Description of the flow:
1. the hot water in the hot water tank is conveyed to the warm water tank through the pump and the second pipeline, and the water level of the warm water tank is raised to an overflow port and then flows back to the hot water tank through the first pipe.
2. The backpressure valve on the fifth pipeline controls the outlet pressure of the pump to be less than or equal to a preset value, the preset value can be 0.4MPa, and the backpressure valve opens hot water to flow back to the hot water tank when the outlet pressure of the pump exceeds the preset value according to different processes.
3. The self-regulating valve on the second pipeline plays a role in automatically controlling the temperature of the warm water tank by regulating the flow of hot water, so that the requirements of the rectification process are further ensured.
4. The warm water in the warm water tank is conveyed to the reboiler through the pump on the third pipeline, and the warm water returns to the warm water tank after heat exchange is completed.
It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.
Claims (7)
1. A reboiler device for sulfur hexafluoride is characterized by comprising a hot water tank, a warm water tank and a reboiler;
the hot water tank comprises a first water inlet end and a first water outlet end;
the warm water tank comprises a third water inlet end, a fourth water inlet end, a second water outlet end and a third water outlet end;
the reboiler comprises a fifth water inlet end and a fourth water outlet end;
the first water inlet end is connected with the second water outlet end through a first pipeline, the first water outlet end is connected with the third water inlet end through a second pipeline, the third water outlet end is connected with the fifth water inlet end through a third pipeline, and the fourth water outlet end is connected with the fourth water inlet end through a fourth pipeline.
2. A reboiler apparatus for sulphur hexafluoride as claimed in claim 1, wherein said hot water tank further includes a second water inlet end, said reboiler apparatus further including a temperature sensor;
the second water inlet end is connected with the first water outlet end through a fifth pipeline;
the temperature sensor is arranged at the intersection of the second pipeline and the fifth pipeline;
and valves are arranged on the second pipeline and the fifth pipeline.
3. A reboiler apparatus for sulphur hexafluoride as claimed in claim 2, wherein the valve in the fifth conduit is a back pressure valve.
4. A reboiler apparatus for sulphur hexafluoride as claimed in claim 2, wherein the valves in the second conduit are self-regulating valves.
5. A reboiler apparatus for sulphur hexafluoride as claimed in claim 1, wherein said first conduit is provided with a valve; or:
a valve is arranged on the second pipeline; or:
a valve is arranged on the third pipeline; or:
and a valve is arranged on the fourth pipeline.
6. A reboiler apparatus for sulphur hexafluoride as claimed in claim 1, further comprising a pump;
the pump is arranged on the first pipeline; or:
the pump is arranged on the second pipeline; or:
the pump is arranged on the third pipeline; or:
the pump is disposed on the fourth pipe.
7. The reboiler device for sulfur hexafluoride as claimed in claim 1, wherein a rectifying tower is arranged at one side of the reboiler, and a kettle of the rectifying tower is connected with the reboiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022707250.2U CN214209474U (en) | 2020-11-20 | 2020-11-20 | Reboiler device for sulfur hexafluoride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022707250.2U CN214209474U (en) | 2020-11-20 | 2020-11-20 | Reboiler device for sulfur hexafluoride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214209474U true CN214209474U (en) | 2021-09-17 |
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ID=77698348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022707250.2U Active CN214209474U (en) | 2020-11-20 | 2020-11-20 | Reboiler device for sulfur hexafluoride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214209474U (en) |
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2020
- 2020-11-20 CN CN202022707250.2U patent/CN214209474U/en active Active
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