CN213100895U - Small-flow tower top backflow control system - Google Patents
Small-flow tower top backflow control system Download PDFInfo
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- CN213100895U CN213100895U CN202021913606.1U CN202021913606U CN213100895U CN 213100895 U CN213100895 U CN 213100895U CN 202021913606 U CN202021913606 U CN 202021913606U CN 213100895 U CN213100895 U CN 213100895U
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Abstract
The utility model discloses a small flow tower top reflux control system, belonging to the technical field of fine chemical engineering, comprising a rectifying tower, a condenser, a rectifying tower top thermometer, a reflux flowmeter, an outward-feeding regulating valve, a gas phase pipe, a condensate pipe, a collecting pipe and a product tank; the rectifying tower is connected with the inlet of the condenser through a gas phase pipe; the outlet of the condenser is connected with the inlet of the collecting pipe through a condensate pipe; one end of the outlet of the collecting pipe is connected with the rectifying tower through a reflux flow meter, and the other end of the outlet of the collecting pipe is connected with the inlet of the outward feeding regulating valve; the outlet of the delivery regulating valve is connected with the product tank; the rectification tower top temperature meter is positioned at the top of the rectification tower. The utility model discloses a small flow tower top reflux control system through optimization and automated control to equipment, flow, realizes the stability of small flow tower top reflux control, guarantees rectifying column normal production.
Description
Technical Field
The utility model relates to a small flow tower top reflux control system belongs to fine chemistry industry technical field.
Background
In the field of fine chemical production, a plurality of rectifying towers are provided, and each rectifying tower is provided with a tower top reflux control system. The tower top reflux control system of a rectifying tower with large treatment capacity is generally provided with a reflux tank, a reflux pump and a related instrument control system, and the stability of the tower top temperature of the rectifying tower is ensured by controlling the reflux quantity.
However, for a rectifying tower with a small treatment capacity, a reflux pump with a small flow rate is difficult to select due to a small flow rate, and a reflux proportion distributor is generally adopted to regulate reflux at the top of the tower; because the reflux proportion distributor adopts pulse adjustment, the equipment damage rate is higher, and the production is easily influenced.
Therefore, the optimized small-flow tower top reflux control system is provided, the reflux flow is controlled by adjusting the material delivery amount by utilizing the height difference of equipment, the stability of the temperature at the top of the rectifying tower is further kept, and the production requirement is met; it becomes a technical problem to be solved urgently in the technical field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a small flow tower top reflux control system through optimization and automated control to equipment, flow, realizes the stability of small flow tower top reflux control, guarantees rectifying column normal production.
The above object of the utility model is achieved through the following technical scheme:
a small flow tower top reflux control system is characterized in that: comprises a rectifying tower, a condenser, a rectifying tower top thermometer, a reflux flowmeter, an outward feeding regulating valve, a gas phase pipe, a condensate pipe, a collecting pipe and a product tank; the rectifying tower is connected with the inlet of the condenser through a gas phase pipe; the outlet of the condenser is connected with the inlet of the collecting pipe through a condensate pipe; one end of the outlet of the collecting pipe is connected with the rectifying tower through a reflux flow meter, and the other end of the outlet of the collecting pipe is connected with the inlet of the outward feeding regulating valve; the outlet of the delivery regulating valve is connected with the product tank; the rectification tower top temperature meter is positioned at the top of the rectification tower.
Preferably, the installation heights of the condenser, the rectifying tower, the outward feeding regulating valve and the product tank are sequentially from high to low.
Has the advantages that:
the utility model discloses a small flow tower top reflux control system through optimization and automated control to equipment, flow, realizes the stability of small flow tower top reflux control, guarantees rectifying column normal production.
The invention is further illustrated by the accompanying drawings and the detailed description, which are not meant to limit the scope of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a small-flow tower top reflux control system according to embodiment 1 of the present invention.
The main equipment names:
1 rectifying tower 2 condenser
3 rectification tower top thermometer 4 reflux flowmeter
5 delivery regulating valve 6 gas phase pipe
7 condensate pipe and 8 collecting pipe
9 product pot
Detailed Description
The present invention may be practiced, but is not limited to, in the following examples which are intended to be illustrative of the practice of the invention, and are not intended to limit the scope of the invention in any way, and in the following examples various procedures and methods not described in detail are conventional and well known in the art.
Example 1
As shown in fig. 1, the structure of a small flow tower top reflux control system according to embodiment 1 of the present invention is schematically illustrated, wherein 1 is a rectification tower, 2 is a condenser, 3 is a rectification tower top temperature gauge, 4 is a reflux flow meter, 5 is an outgoing regulating valve, 6 is a gas phase pipe, 7 is a condensate pipe, 8 is a collecting pipe, and 9 is a product tank; the utility model discloses small flow tower top return flow control system includes: the system comprises a rectifying tower 1, a condenser 2, a rectifying tower top temperature gauge 3, a reflux flowmeter 4, an outward feeding regulating valve 5, a gas phase pipe 6, a condensate pipe 7, a collecting pipe 8 and a product tank 9; the rectifying tower 1 is connected with the inlet of the condenser 2 through a gas phase pipe 6; the outlet of the condenser 2 is connected with the inlet of a collecting pipe 8 through a condensate pipe 7; one end of an outlet of the collecting pipe 8 is connected with the rectifying tower 1 through a reflux flow meter 4, and the other end of the outlet of the collecting pipe 8 is connected with an inlet of the outward feeding regulating valve 5; the outlet of the delivery regulating valve 5 is connected with a product tank 9; the rectification column top temperature table 3 is positioned at the top of the rectification column 1.
The utility model discloses a small flow tower top reflux control system's theory of operation as follows:
the gas phase of the rectifying tower 1 enters a condenser 2 through a gas phase pipe 6, condensate is discharged from an outlet of the condenser 2 through a condensate pipe 7 and enters a collecting pipe 8, the condensate is divided into two paths from an outlet of the collecting pipe 8 and respectively enters a reflux flow meter 4 and an outward-sending regulating valve 5, one part of the condensate flows back to the rectifying tower 1, and the other part of the condensate flows to a product tank 9; the device installation height comprises a condenser 2, a rectifying tower 1, an outward feeding regulating valve 5 and a product tank 9 in sequence from high to low; when the outward-feeding adjusting valve 5 is completely opened, the condensate is completely externally fed to the product tank 9, and when the outward-feeding adjusting valve 5 is completely closed, the condensate completely reflows to the rectifying tower 1; the flow of the reflux flowmeter 4 is controlled by adjusting the delivery amount through the delivery adjusting valve 5, so that the stable control of the temperature at the top of the rectifying tower is realized.
The utility model discloses a small flow tower top reflux control system through optimization and automated control to equipment, flow, realizes the stability of small flow tower top reflux control, guarantees rectifying column normal production.
Claims (2)
1. A small flow tower top reflux control system is characterized in that: comprises a rectifying tower, a condenser, a rectifying tower top thermometer, a reflux flowmeter, an outward feeding regulating valve, a gas phase pipe, a condensate pipe, a collecting pipe and a product tank; the rectifying tower is connected with the inlet of the condenser through a gas phase pipe; the outlet of the condenser is connected with the inlet of the collecting pipe through a condensate pipe; one end of the outlet of the collecting pipe is connected with the rectifying tower through a reflux flow meter, and the other end of the outlet of the collecting pipe is connected with the inlet of the outward feeding regulating valve; the outlet of the delivery regulating valve is connected with the product tank; the rectification tower top temperature meter is positioned at the top of the rectification tower.
2. The small flow overhead reflux control system as set forth in claim 1, wherein: the installation heights of the condenser, the rectifying tower, the outward-feeding regulating valve and the product tank are sequentially from high to low.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021913606.1U CN213100895U (en) | 2020-09-04 | 2020-09-04 | Small-flow tower top backflow control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021913606.1U CN213100895U (en) | 2020-09-04 | 2020-09-04 | Small-flow tower top backflow control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213100895U true CN213100895U (en) | 2021-05-04 |
Family
ID=75659635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021913606.1U Active CN213100895U (en) | 2020-09-04 | 2020-09-04 | Small-flow tower top backflow control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213100895U (en) |
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2020
- 2020-09-04 CN CN202021913606.1U patent/CN213100895U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230820 Address after: 300203 202, Area B, No. 147, Guangrong Road, Hongqiao District, Tianjin Patentee after: Tianjin Jinruiyang Engineering Technology Co.,Ltd. Address before: 050090 Room 501, unit 2, building 6, Zige community, xinshizhong Road, Qiaoxi District, Shijiazhuang City, Hebei Province Patentee before: Wang Guoqiang |
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| TR01 | Transfer of patent right |