Condensing device and high-purity boron preparation system
By designing the intake and outlet pipe structures in the condensation device, using the coolant to circulate boron tribromide in the condensation exhaust gas, the problem of low boron tribromide recovery is solved, and efficient boron tribromide recovery is achieved.
Patent Information
- Application Number
- CN202422052758.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The current condensing bottles have a low recovery rate for recycling boron tribromide, which leads to the evaporation of boron tribromide and discharged with the exhaust gas.
A condensing device is designed, including a cooling member, an intake pipe and an outlet pipe. The intake pipe and an outlet pipe gradually decrease or increase in the cooling chamber. The coolant circulates in the cooling chamber. The exhaust gas condenses through the intake pipe and enters the liquid collection chamber. The uncondensed boron tribromide condenses again through the outlet pipe and returns to the liquid collection chamber to improve the condensation effect.
Effectively avoiding volatility of boron tribromide, improving the recovery rate of boron tribromide.
Smart Images
Figure CN223069110U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of gas treatment, and particularly relates to a condensation device and a high-purity boron preparation system. Background Art
[0002] High-purity boron powder and boron crystals can be prepared by the hydrogen thermal reduction method of boron tribromide. Boron tribromide accounts for most of the cost in the preparation of high-purity boron, so the recovery of boron tribromide is extremely important. During the production of high-purity boron, due to the incomplete reaction of boron tribromide and hydrogen, and the generation of products, the tail gas contains boron tribromide, hydrogen bromide, and hydrogen. Currently, a condensation bottle is usually used to condense the tail gas to condense boron tribromide into a liquid for recovery. However, boron tribromide is prone to volatilization and is discharged with the tail gas after condensation, resulting in a low recovery rate of boron tribromide. Summary of the Utility Model
[0003] The technical problem to be solved by this application is that the existing condensation bottle has a low recovery rate for recovering boron tribromide. To solve this technical problem, a condensation device and a high-purity boron preparation system that can condense and recover boron tribromide with a high recovery rate are provided.
[0004] The technical solution proposed by this application is as follows:
[0005] A condensation device, comprising:
[0006] A cooling member, provided with a cooling cavity and a liquid collecting cavity, and the cooling cavity and the liquid collecting cavity are independent of each other;
[0007] An inlet pipe, partially located in the cooling cavity, and the inlet end of the inlet pipe is located outside the cooling member, and the outlet end of the inlet pipe communicates with the liquid collecting cavity;
[0008] An outlet pipe, partially located in the cooling cavity, and the inlet end of the outlet pipe communicates with the liquid collecting cavity, and the outlet end of the outlet pipe is located outside the cooling member;
[0009] Wherein, the height of the inlet pipe gradually decreases from the inlet end to the outlet end, and the height of the outlet pipe gradually increases from the inlet end to the outlet end.
[0010] Further, the inlet pipe includes a first inlet section, a second inlet section, and a third inlet section. One end of the first inlet section is located outside the cooling member, and the other end extends into the cooling cavity and is connected to the second inlet section. The second inlet section is located in the cooling cavity, and one end of the third inlet section is connected to the end of the second inlet section away from the first inlet section, and the other end communicates with the liquid collecting cavity.
[0011] Further, the second inlet section extends spirally.
[0012] Further, the air outlet pipe includes a first air outlet section, a second air outlet section, and a third air outlet section. One end of the first air outlet section is communicated with the liquid collection cavity, and the other end is connected to the second air outlet section. The second air outlet section is located inside the cooling cavity. One end of the third air outlet section is connected to the end of the second air outlet section away from the first air outlet section, and the other end is located outside the cooling member.
[0013] Further, the second air outlet section extends spirally.
[0014] Further, the cooling member is also provided with a liquid inlet and a liquid outlet communicated with the cooling cavity;
[0015] The liquid inlet is located at the bottom of the cooling cavity, and the liquid outlet is located at the top of the cooling cavity.
[0016] Further, the cooling member is also provided with a recovery port communicated with the liquid collection cavity; the recovery port is located at the bottom of the liquid collection cavity.
[0017] Further, the condensation device further includes a recovery valve, and the recovery valve is arranged at the recovery port of the cooling member.
[0018] Further, the cooling cavity is located above the liquid collection cavity.
[0019] A high-purity boron preparation system includes the condensation device as described above.
[0020] With the above-mentioned condensation device, the tail gas containing boron tribromide first enters the air inlet pipe. When passing through the part of the air inlet pipe located in the cooling cavity, boron tribromide condenses into a liquid and then flows into the liquid collection cavity; the uncondensed boron tribromide and the volatilized boron tribromide in the liquid collection cavity enter the air outlet pipe. When passing through the part of the air outlet pipe located in the cooling cavity, boron tribromide condenses into a liquid and flows back into the liquid collection cavity. In this way, the volatilization and overflow of boron tribromide can be effectively avoided, and the recovery rate of boron tribromide can be improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification. They are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation to the present application.
[0022] Figure 1 It is a schematic structural diagram of the condensation device provided by an embodiment of the present application;
[0023] Figure 2 For Figure 1 The right view structural diagram of the condensation device shown.
[0024] Label description:
[0025] 100. Condensing device; 110. Cooling member; 111. Cooling chamber; 112. Liquid collecting chamber; 113. Liquid inlet; 114. Liquid outlet; 115. Recovery port; 120. Inlet pipe; 121. First intake section; 122. Second intake section; 123. Third intake section; 130. Outlet pipe; 131. First outlet section; 132. Second outlet section; 133. Third outlet section. Detailed implementation manners
[0026] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0027] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present application.
[0028] On the one hand, the present application discloses a condensing device, which can be used for condensing the tail gas containing boron tribromide to condense and recover boron tribromide, and the recovery rate of the condensing device is relatively high. Of course, in other embodiments, the condensing device can also be applied to the condensation and recovery of other substances, which is not limited herein. The following takes the condensation and recovery of boron tribromide as an example for description.
[0029] As Figure 1 and Figure 2 shown, the condensing device 100 includes a cooling member 110, an inlet pipe 120 and an outlet pipe 130. The cooling member 110 is provided with a cooling chamber 111 and a liquid collecting chamber 112, and the cooling chamber 111 and the liquid collecting chamber 112 are independent of each other.
[0030] A part of the inlet pipe 120 is located in the cooling chamber 111, and the intake end of the inlet pipe 120 is located outside the cooling member 110, and the outlet end of the inlet pipe 120 is communicated with the liquid collecting chamber 112; a part of the outlet pipe 130 is located in the cooling chamber 111, and the intake end of the outlet pipe 130 is communicated with the liquid collecting chamber 112, and the outlet end of the outlet pipe 130 is located outside the cooling member 110.
[0031] Among them, the height of the intake pipe 120 gradually decreases from the intake end to the outlet end, and the height of the outlet pipe 130 gradually increases from the intake end to the outlet end, so as to ensure that the liquid condensed in the intake pipe 120 and the outlet pipe 130 flows into the liquid collection cavity 112.
[0032] It should be noted that the cooling cavity 111 is filled with a coolant to cool the parts of the intake pipe 120 and the outlet pipe 130 located in the cooling cavity 111, so as to condense the tail gas flowing through the parts of the intake pipe 120 and the outlet pipe 130 located in the cooling cavity 111. Optionally, the coolant is silicone oil. In this embodiment, the temperature of the silicone oil is -20°C.
[0033] Using the above-mentioned condensation device 100, the tail gas containing boron tribromide first enters the intake pipe 120. When passing through the part of the intake pipe 120 located in the cooling cavity 111, boron tribromide condenses into a liquid and then flows into the liquid collection cavity 112; the incompletely condensed boron tribromide and the boron tribromide volatilized in the liquid collection cavity 112 enter the outlet pipe 130. When passing through the part of the outlet pipe 130 located in the cooling cavity 111, boron tribromide condenses into a liquid and flows back to the liquid collection cavity 112. In this way, the volatilization and overflow of boron tribromide can be effectively avoided, and the recovery rate of boron tribromide can be improved.
[0034] In one embodiment, the cooling cavity 111 is located above the liquid collection cavity 112 to facilitate the setting of the intake pipe 120 and the outlet pipe 130, and ensure that the height of the intake pipe 120 gradually decreases from the intake end and the outlet end, and the height of the outlet pipe 130 gradually increases from the intake end to the outlet end. It can be understood that in this embodiment, an intake hole and an outlet hole are penetrated between the cooling cavity 111 and the liquid collection cavity 112. The intake pipe 120 extends into the cooling cavity 111 and communicates with the intake hole, and the outlet pipe 130 extends into the cooling cavity 111 and communicates with the outlet hole. In this way, both the cooling cavity 111 and the liquid collection cavity 112 can be independent of each other, and the parts of the intake pipe 120 and the outlet pipe 130 located in the cooling cavity 111 can be directly communicated with the liquid collection cavity 112.
[0035] In one embodiment, the cooling member 110 is further provided with a liquid inlet 113 and a liquid outlet 114. Both the liquid inlet 113 and the liquid outlet 114 communicate with the cooling cavity 111. The liquid inlet 113 is used for the input of the coolant, and the liquid outlet 114 is used for the output of the coolant, so as to realize the replacement of the coolant in the cooling cavity 111 and ensure the cooling effect. It can be understood that a mechanism for refrigerating the coolant is provided outside the cooling member 110, and the coolant circulates in the cooling cavity 111 and this mechanism.
[0036] Furthermore, the liquid inlet 113 is located at the bottom of the cooling chamber 111, and the liquid outlet 114 is located at the top of the cooling chamber 111. The coolant flows upward in the cooling chamber 111 and exchanges heat with the intake pipe 120 and the exhaust pipe 130 during the flow process. Therefore, the temperature at the bottom of the cooling chamber 111 is lower. At the same time, in combination with the above embodiments, the gas outlet end of the intake pipe 120 and the gas inlet end of the exhaust pipe 130 are both located at the bottom of the cooling chamber 111.
[0037] Taking the intake pipe 120 as an example, during the flow of the tail gas along the intake pipe 120, the temperature gradually decreases, thereby improving the condensation effect. Taking the exhaust pipe 130 as an example, the temperature of the gas in the liquid collection chamber 112 is relatively low, and the temperature at the gas inlet end of the exhaust pipe 130 is lower than that at other positions of the exhaust pipe 130. Therefore, the condensation effect on the relatively low-temperature gas can be improved.
[0038] In one embodiment, the cooling member 110 is further provided with a recovery port 115, and the recovery port 115 is communicated with the liquid collection chamber 112 to discharge the boron tribromide liquid recovered in the liquid collection chamber 112 through the recovery port 115. Specifically, in Figure 1 the illustrated embodiment, the recovery port 115 is located at the bottom of the liquid collection chamber 112 to further improve the recovery rate.
[0039] Furthermore, the condensation device 100 further includes a recovery valve, and the recovery valve is arranged at the recovery port 115 of the cooling member 110, used to connect with the recovery mechanism for boron tribromide and capable of controlling the communication between the recovery port 115 and the recovery mechanism.
[0040] In one embodiment, the intake pipe 120 includes a first intake section 121, a second intake section 122 and a third intake section 123. One end of the first intake section 121 is located outside the cooling member 110, that is, the first intake section 121 has the intake end of the intake pipe 120, and the other end extends into the cooling chamber 111 and is connected to the second intake section 122. The second intake section 122 is located in the cooling chamber 111. One end of the third intake section 123 is connected to the end of the second intake section 122 away from the first intake section 121, and the other end is communicated with the liquid intake chamber, that is, the third intake section 123 has the gas outlet end of the intake pipe 120.
[0041] Furthermore, the second intake section 122 extends spirally to extend the flow path of the tail gas, thereby prolonging the cooling time and improving the condensation effect.
[0042] In one embodiment, the air outlet pipe 130 includes a first air outlet section 131, a second air outlet section 132, and a third air outlet section 133. One end of the first air outlet section 131 is communicated with the liquid collection cavity 112, and the other end is connected to the second air outlet section 132. That is, the first air outlet section 131 has the air inlet end of the air outlet pipe 130. The second air outlet section 132 is located in the cooling cavity 111. One end of the third air outlet section 133 is connected to the end of the second air outlet section 132 away from the first air outlet section 131, and the other end is located outside the cooling member 110. That is, the third air outlet section 133 has the air outlet end of the air outlet pipe 130.
[0043] Further, the second air outlet section 132 extends spirally to extend the flow path of the tail gas, thereby prolonging the cooling time, improving the condensation effect, and further avoiding the spillage of boron tribromide.
[0044] In summary, the condensation device 100 in the above embodiment has at least the following advantages:
[0045] 1. The air outlet pipe 130 passes through the cooling cavity 111, and can condense the boron tribromide that is not completely condensed or volatilized again, thereby improving the recovery rate of boron tribromide.
[0046] 2. The inlet pipe 120 and the air outlet pipe 130 at least partially extend spirally in the cooling cavity 111, so as to prolong the cooling time, improve the condensation effect, and improve the recovery rate of boron tribromide.
[0047] On the other hand, the present application also provides a high-purity boron preparation system, and the preparation system includes the condensation device 100 in the above embodiment.
[0048] Although the embodiments of the present application have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present application. The scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A condensing device, characterized in that, Comprising: A cooling member, provided with a cooling cavity and a liquid collecting cavity, the cooling cavity and the liquid collecting cavity being independent of each other; An intake pipe, partially located in the cooling cavity, and an intake end of the intake pipe being located outside the cooling member, an outlet end of the intake pipe being communicated with the liquid collecting cavity; An outlet pipe, partially located in the cooling cavity, and an intake end of the outlet pipe being communicated with the liquid collecting cavity, an outlet end of the outlet pipe being located outside the cooling member; Wherein, a height of the intake pipe gradually decreases from the intake end to the outlet end, and a height of the outlet pipe gradually increases from the intake end to the outlet end.
2. The condensation device according to claim 1, characterized in that, The intake pipe includes a first intake section, a second intake section and a third intake section, one end of the first intake section being located outside the cooling member, the other end extending into the cooling cavity and being connected to the second intake section, the second intake section being located in the cooling cavity, one end of the third intake section being connected to an end of the second intake section away from the first intake section, and the other end being communicated with the liquid collecting cavity.
3. The condensation device according to claim 2, characterized in that, The second intake section extends spirally.
4. The condensation device according to claim 1, wherein, The outlet pipe includes a first outlet section, a second outlet section and a third outlet section, one end of the first outlet section being communicated with the liquid collecting cavity, the other end being connected to the second outlet section, the second outlet section being located in the cooling cavity, one end of the third outlet section being connected to an end of the second outlet section away from the first outlet section, and the other end being located outside the cooling member.
5. The condensation device according to claim 4, characterized in that, The second outlet section extends spirally.
6. The condensation device according to claim 1, characterized in that, The cooling member is further provided with a liquid inlet and a liquid outlet communicated with the cooling cavity; The liquid inlet is located at a bottom of the cooling cavity, and the liquid outlet is located at a top of the cooling cavity.
7. The condensation device according to claim 1, wherein, The cooling member is further provided with a recovery port communicated with the liquid collecting cavity; the recovery port is located at a bottom of the liquid collecting cavity.
8. The condensation device according to claim 7, characterized in that, The condensation device further includes a recovery valve, and the recovery valve is arranged at the recovery port of the cooling member.
9. The condensation device according to claim 1, characterized in that The cooling cavity is located above the liquid collecting cavity.
10. A high-purity boron preparation system, characterized in that, Comprising the condensation device according to any one of claims 1-9.