CN211821747U - Pump filling system in trichlorosilane production process - Google Patents
Pump filling system in trichlorosilane production process Download PDFInfo
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- CN211821747U CN211821747U CN202020362870.4U CN202020362870U CN211821747U CN 211821747 U CN211821747 U CN 211821747U CN 202020362870 U CN202020362870 U CN 202020362870U CN 211821747 U CN211821747 U CN 211821747U
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Abstract
The utility model relates to the technical field of trichlorosilane production, in particular to a pump filling system in a trichlorosilane production process, which comprises a filter, a pump assembly I and a recovery tank; the front end of the filter is connected with a first pipeline; a first control valve is arranged on the first pipeline; a first guide shower valve is arranged on the first pipeline; the first pilot shower valve is positioned between the first control valve and the filter; the filter is communicated with an inlet of the first pump assembly through a second pipeline; a second control valve is arranged on the second pipeline; a second guide shower valve is arranged on the second pipeline; the second pilot shower valve is positioned between the filter and the second control valve; the filter is communicated with the recovery tank through a third pipeline; a third guide shower valve is arranged on the third pipeline; the third pipeline is provided with a sight glass for observing the state of the fluid in the third pipeline; the outlet of the pump assembly I is connected with a pipeline IV; a control valve III is arranged on the pipeline IV; the pipeline four-way is communicated with the pipeline three through a pipeline five; and a control valve IV is arranged on the pipeline V. Adopt the utility model discloses can realize the pump priming under the seal environment.
Description
Technical Field
The utility model relates to a trichlorosilane's production technical field especially relates to a pump priming system in trichlorosilane production process.
Background
Conveying chlorosilane (such as trichlorosilane, silicon tetrachloride, dichlorosilane and the like) materials in the production process of trichlorosilane is involved, and the materials are dangerous chemicals, and have the following physicochemical properties: trichlorosilane is inflammable, vapor and air can form explosive mixture, and the mixture is easy to combust and explode when meeting open fire and high heat, the vapor is heavier than the air, can be diffused to a far place at a lower part, can be ignited and reburnt when meeting a fire source, and easily releases inflammable gas when meeting water to react, so that the combustion and the explosion are caused; dichlorosilane is flammable, toxic, corrosive and irritating, and can cause burn. Its vapor can form a wide range of explosive mixtures with air. The danger of combustion and explosion is caused by heat source and open fire. React vigorously with halogens and other oxidants. React violently with water or water vapor to generate hydrochloric acid smoke. Silicon tetrachloride decomposes and releases heat when heated or in contact with water, and toxic and corrosive smoke is emitted. It is corrosive to many metals, especially in the presence of humid air, and presents a major hazard to the site environment and operators once leaked.
In the production process of trichlorosilane, the switching frequency of pump equipment is high; moreover, the situation of emergency switching of pump equipment often happens, however, before the pump equipment is switched, the pump filling is an essential link; the current pump priming operation is: after the labor insurance product is worn by an operator, an inlet valve of the pump equipment is operated to be fully opened, the metal hose is connected with the upper guide shower valve of the filter, the material is discharged into the open container, after the liquid is discharged from the pipe orifice, the outlet guide shower valve of the pump is opened, the liquid is injected into the pump, and the discharged material is sent to the three-waste treatment. Because the operation is not carried out in a closed environment and the operation is carried out by operators in a dangerous environment, the pump irrigation is not thorough, and the gas in a conveying pipeline and a filter is not completely removed, the pump equipment is easy to damage; moreover, the leakage of materials in the pump filling process can cause environmental pollution, harm to human health and the like.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a pump priming system in trichlorosilane production process, main aim at can realize the pump priming under the enclosed environment, prevents that the pump priming is not thorough in trichlorosilane production process, has avoided the pump assembly to damage, and the material leaks and causes environmental pollution and personnel health scheduling problem.
In order to achieve the above object, the utility model mainly provides the following technical scheme:
the embodiment of the utility model provides a pump filling system in the production process of trichlorosilane, which comprises a filter, a pump assembly I and a recovery tank;
the front end of the filter is connected with a first pipeline; the first pipeline is provided with a first control valve for controlling the on-off of the first pipeline; a first guide shower valve is arranged on the first pipeline; the first pilot shower valve is positioned between the first control valve and the filter;
the filter is communicated with the inlet of the first pump assembly through a second pipeline; a second control valve is arranged on the second pipeline and used for controlling the on-off of the second pipeline; a second guide shower valve is arranged on the second pipeline; the second pilot shower valve is positioned between the filter and the second control valve;
the filter is communicated with the recovery tank through a third pipeline; a third guide shower valve is arranged on the third pipeline; the third pipeline is provided with a sight glass for observing the state of the fluid in the third pipeline;
the outlet of the first pump assembly is connected with a pipeline IV for guiding the fluid output by the first pump assembly to the next process; a control valve III is arranged on the pipeline IV; the pipeline four-way is communicated with the pipeline three through a pipeline five; and a control valve IV is arranged on the pipeline V and used for controlling the on-off of the pipeline V.
Further, still include: a second pump assembly;
the pump assembly is communicated with the recovery tank through a pipeline six and is used for outputting the fluid in the recovery tank;
and a control valve V is arranged on the pipeline VI and used for controlling the on-off of the pipeline VI.
Further, still include: a crude rectification column;
the crude rectifying tower is communicated with an outlet of the pump assembly II through a pipeline VII; and a control valve six is arranged on the pipeline seven and used for controlling the on-off of the pipeline seven.
Furthermore, a control valve seventh is arranged on the pipeline III and used for controlling the on-off of the pipeline III; the control valve seven is positioned at the inlet of the recovery tank.
Further, the sight glass is positioned between the control valve seven and the pilot shower valve three;
the sight glass is positioned above the control valve seven.
Further, the pipeline III at the sight glass is vertically arranged.
Further, the connecting part of the third pipeline and the recovery tank is positioned at the upper end of the recovery tank.
Further, the connection part of the pipeline six and the recovery tank is positioned at the lower end of the recovery tank.
Furthermore, a fourth guide shower valve is arranged at the lower part of the filter.
Furthermore, the number of the filters is two, and the two filters are arranged in parallel;
the first pump assemblies are two, and the two first pump assemblies are arranged in parallel.
By means of the technical scheme, the pump filling system in the production process of trichlorosilane at least has the following advantages:
the pump filling can be realized in a closed environment, the pump filling is prevented from being incomplete in the trichlorosilane production process, and the problems of environmental pollution, personnel health and the like caused by damage of a pump assembly and material leakage are avoided.
The above description is only an overview of the technical solution of the present invention, and in order to make the technical means of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Fig. 1 is a schematic view of a pump filling system in a trichlorosilane production process according to an embodiment of the present invention.
Shown in the figure:
the device comprises a control valve I1, a pilot valve I2, a filter 3, a pilot valve IV 4, a pilot valve II 5, a control valve II 6, a pump assembly I7, a recovery tank 8, a control valve V9, a pump assembly II 10, a control valve VI 11, a crude distillation tower 12, a control valve VII 13, a viewing mirror 14, a control valve III 15, a control valve IV 16, a pilot valve III 17 and a trichlorosilane production device 18.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose of the present invention, the following detailed description is given with reference to the accompanying drawings and preferred embodiments, in order to explain the detailed embodiments, structures, features and effects of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
As shown in fig. 1, a pump filling system in a trichlorosilane production process according to an embodiment of the present invention includes a filter 3, a pump assembly one 7 and a recovery tank 8; the front end of the filter 3 is connected with a first pipeline; the first pipeline is used for being communicated with the trichlorosilane production device 18 to convey chlorosilane and other materials generated in the trichlorosilane production process. A control valve I1 is arranged on the first pipeline and used for controlling the on-off of the first pipeline; a first guide shower valve 2 is arranged on the first pipeline, and the first guide shower valve 2 is positioned between the first control valve 1 and the filter 3 so as to discharge gas at the front end of the filter 3 when the filter 3 is replaced; the filter 3 is communicated with an inlet of the pump assembly I7 through a pipeline II; a second control valve 6 is arranged on the second pipeline and used for controlling the on-off of the second pipeline; a second pilot shower valve 5 is arranged on the second pipeline; the second pilot shower valve 5 is positioned between the filter 3 and the second control valve 6 to discharge gas in the second pipeline; the filter 3 is communicated with the recovery tank 8 through a third pipeline; a third guide shower valve 17 is arranged on the third pipeline; the third pipeline is provided with a sight glass 14 for observing the state of the fluid in the third pipeline; the outlet of the pump assembly I7 is connected with a pipeline IV for guiding the fluid output by the pump assembly I7 to the next process; a third control valve 15 is arranged on the fourth pipeline; the pipeline four-way is communicated with the pipeline three through a pipeline five; and a control valve IV 16 is arranged on the pipeline V and used for controlling the on-off of the pipeline V. In the production process of trichlorosilane, a pump filling replacement is needed before a pump assembly for material conveying needs to be replaced or switched, so that gas in the pump assembly and a pipeline is discharged, and the pump assembly is prevented from being damaged; when the pump is filled, opening the first control valve 1 and the second control valve 6, and discharging the materials into a recovery tank 8 through a third pipeline communicated with the filter 3; then opening a third control valve 15 and a fourth control valve 16, and observing by an operator through a sight glass 14 in the process; whether the materials flow through the third observation pipeline or not can be observed, and after the materials flow out is confirmed, the pump assembly can be completely injected with the liquid, so that the pump filling of the pump assembly is qualified.
The utility model discloses a priming system in trichlorosilane production process that an embodiment provided can realize the priming under the enclosed environment, prevents that the priming is not thorough in trichlorosilane production process, has avoided the pump package spare to damage, and the material leaks and causes environmental pollution and personnel health scheduling problem.
As a preferred example of the above embodiment, an embodiment of the present invention provides a pump filling system in a trichlorosilane production process, further including: a second pump assembly 10; the second pump assembly 10 is communicated with the recovery tank 8 through a sixth pipeline and is used for outputting the fluid in the recovery tank 8; and a control valve five 9 is arranged on the pipeline six and used for controlling the on-off of the pipeline six. Further preferably, the method further comprises: a crude rectification column 12; the crude rectifying tower 12 is communicated with an outlet of the pump assembly II 10 through a pipeline seventh; and a control valve six 11 is arranged on the pipeline seven and used for controlling the on-off of the pipeline seven. When the liquid level of recovery tank 8 reached certain liquid level, the material in recovery tank 8 was sent to coarse rectification tower 12 through pump package two 10, carries out material recycle, and it is extravagant to reduce the material, practices thrift the cost. Preferably, a control valve seventh 13 is arranged on the third pipeline and used for controlling the on-off of the third pipeline; a control valve seven 13 is located at the inlet of the recovery tank 8 to control the material entering of the recovery tank 8. Preferably, the sight glass 14 is positioned between the control valve seven 13 and the pilot valve three 17; the sight glass 14 is positioned above the control valve seven 13 so as to observe the material flow in the pipeline three. It is further preferred that the three tubes at the sight glass 14 are arranged vertically to facilitate observation of the low flow conditions.
Preferably, in the above embodiment, the connection part of the third pipe and the recovery tank 8 is located at the upper end of the recovery tank 8. Preferably, the connection of conduit six to recovery tank 8 is located at the lower end of recovery tank 8 to facilitate the flow of material into and out of recovery tank 8.
As a preference of the above embodiment, the lower part of the filter 3 is provided with a drain valve 4 to facilitate the evacuation of the filter 3.
As a preferable example of the above embodiment, there are two filters 3, and the two filters 3 are arranged in parallel; the number of the first pump assemblies 7 is two, and the two first pump assemblies 7 are arranged in parallel and can be used as a standby for convenient switching.
The utility model discloses an embodiment provides a pump priming system in trichlorosilane production process can solve the material that exists among the current pump priming process and leak safe risk and the extravagant cost increase problem of material. The whole process is a closed system pump filling process, and the problems of environmental pollution and personnel health caused in the pump filling process are solved.
The utility model discloses an embodiment provides a pump priming system in trichlorosilane production process, because of the discharged material of pump priming, through recycle, has solved the extravagant problem of material.
Further still, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, with such terms being used only to distinguish one element from another. Without departing from the scope of the exemplary embodiments. Similarly, the terms first, second, etc. do not denote any order or order, but rather the terms first, second, etc. are used to distinguish one element from another. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.
Claims (10)
1. A pump filling system in the production process of trichlorosilane is characterized by comprising a filter, a pump assembly I and a recovery tank;
the front end of the filter is connected with a first pipeline; the first pipeline is provided with a first control valve for controlling the on-off of the first pipeline; a first guide shower valve is arranged on the first pipeline; the first pilot shower valve is positioned between the first control valve and the filter;
the filter is communicated with the inlet of the first pump assembly through a second pipeline; a second control valve is arranged on the second pipeline and used for controlling the on-off of the second pipeline; a second guide shower valve is arranged on the second pipeline; the second pilot shower valve is positioned between the filter and the second control valve;
the filter is communicated with the recovery tank through a third pipeline; a third guide shower valve is arranged on the third pipeline; the third pipeline is provided with a sight glass for observing the state of the fluid in the third pipeline;
the outlet of the first pump assembly is connected with a pipeline IV for guiding the fluid output by the first pump assembly to the next process; a control valve III is arranged on the pipeline IV; the pipeline four-way is communicated with the pipeline three through a pipeline five; and a control valve IV is arranged on the pipeline V and used for controlling the on-off of the pipeline V.
2. The pump priming system in the trichlorosilane production process according to claim 1, further comprising: a second pump assembly;
the pump assembly is communicated with the recovery tank through a pipeline six and is used for outputting the fluid in the recovery tank;
and a control valve V is arranged on the pipeline VI and used for controlling the on-off of the pipeline VI.
3. The pump priming system in the trichlorosilane production process according to claim 2, further comprising: a crude rectification column;
the crude rectifying tower is communicated with an outlet of the pump assembly II through a pipeline VII; and a control valve six is arranged on the pipeline seven and used for controlling the on-off of the pipeline seven.
4. The pump priming system in the trichlorosilane production process according to claim 1, which is characterized in that,
a control valve seventh is arranged on the pipeline III and used for controlling the on-off of the pipeline III; the control valve seven is positioned at the inlet of the recovery tank.
5. The pump priming system in the trichlorosilane production process according to claim 4, which is characterized in that,
the sight glass is positioned between the control valve seventh and the pilot shower valve III;
the sight glass is positioned above the control valve seven.
6. The pump priming system in the trichlorosilane production process according to claim 5, which is characterized in that,
the third pipeline at the sight glass is vertically arranged.
7. The pump priming system in the trichlorosilane production process according to claim 1, which is characterized in that,
and the connecting part of the pipeline III and the recovery tank is positioned at the upper end of the recovery tank.
8. The pump priming system in the trichlorosilane production process according to claim 7, which is characterized in that,
and the connecting part of the pipeline six and the recovery tank is positioned at the lower end of the recovery tank.
9. The pump priming system in the trichlorosilane production process according to claim 1, which is characterized in that,
and a fourth guide shower valve is arranged at the lower part of the filter.
10. The pump priming system in the trichlorosilane production process according to claim 1, which is characterized in that,
the number of the filters is two, and the two filters are arranged in parallel;
the first pump assemblies are two, and the two first pump assemblies are arranged in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362870.4U CN211821747U (en) | 2020-03-20 | 2020-03-20 | Pump filling system in trichlorosilane production process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020362870.4U CN211821747U (en) | 2020-03-20 | 2020-03-20 | Pump filling system in trichlorosilane production process |
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| CN211821747U true CN211821747U (en) | 2020-10-30 |
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| CN202020362870.4U Active CN211821747U (en) | 2020-03-20 | 2020-03-20 | Pump filling system in trichlorosilane production process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046452A (en) * | 2021-11-25 | 2022-02-15 | 新疆大全新能源股份有限公司 | Recovery system after liquid chlorosilane leaks |
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2020
- 2020-03-20 CN CN202020362870.4U patent/CN211821747U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114046452A (en) * | 2021-11-25 | 2022-02-15 | 新疆大全新能源股份有限公司 | Recovery system after liquid chlorosilane leaks |
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