CN202191725U - Interface level control device for extraction tower - Google Patents
Interface level control device for extraction tower Download PDFInfo
- Publication number
- CN202191725U CN202191725U CN201120247248XU CN201120247248U CN202191725U CN 202191725 U CN202191725 U CN 202191725U CN 201120247248X U CN201120247248X U CN 201120247248XU CN 201120247248 U CN201120247248 U CN 201120247248U CN 202191725 U CN202191725 U CN 202191725U
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- Prior art keywords
- extraction tower
- utility
- model
- differential pressure
- control device
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Abstract
The utility model discloses an interface level control device for an extraction tower, which comprises an extraction tower (1), wherein the extraction tower (1) is provided with a differential pressure transmitter (2) and an electromagnetic valve (3); and the differential pressure transmitter (2) controls the opening of the electromagnetic valve (3). According to the utility model, the automatic control is achieved through the switch-on and switch-off of the differential pressure transmitter and the opening and closing of the electromagnetic valve, so that the extraction agent does not enter the following working section with raw ester, the problems from other interface level gauges can be avoided, and the extraction agent quantity of the extraction tower can be better controlled; accordingly, the technical effect is stabilized.
Description
Technical field
The utility model relates to a kind of extraction tower circle level control device, is applicable to position, the boundary control of extraction tower in the n-propyl acetate production process.
Background technology
During n-propyl acetate was produced, it was important to extract this step, and the water that will be dissolved in the thick ester through extractant extracts, and can reduce follow-up purification load.Extractant just seems very important with the Interface Control of thick ester.Because extractant suction back proportion often changes, general interfacial meter timing signal is to carry out according to density, after Media density changes, just can't accurately show position, actual boundary, and often causes extractant to get into next treating column with thick ester, is prone to cause tower to stop up.
The utility model content
The utility model purpose: the purpose of the utility model is the deficiency to prior art, and a kind of extraction tower circle level control device that can control the position, boundary automatically is provided.
Technical scheme: the described extraction tower circle level control device of the utility model, comprise extraction tower, said extraction tower is provided with differential pressure transmitter and magnetic valve, and said differential pressure transmitter is controlled the unlatching of said magnetic valve.
The utility model is according to Δ p=ρ gh, and the Media density in the measurement category has changed, and with regard to the extractant and the interface of thick ester are described change has taken place, and comes the variation of reaction interface through the variation of pressure reduction.During work, the pressure of measuring extraction tower through differential pressure transmitter changes, through setting the unlatching of a upper pressure limit and a low pressure limit duty control solenoid valve; Reach in limited time, opens solenoid valve emits the bottom of extractant from extraction tower; Reach down in limited time; Close magnetic valve, extractant is increased in the amount of extraction tower, circulation gets final product one by one.
The utility model compared with prior art; Its beneficial effect is: the utility model is through the switch of differential pressure transmitter and magnetic valve; Realization automation control makes extractant not enter next workshop section with thick ester, can avoid the problem of other interfacial meters; Better control the extraction dosage of extraction tower, thus the effect of process for stabilizing.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Be elaborated in the face of the utility model technical scheme down, but the protection domain of the utility model is not limited to said embodiment.
Embodiment 1:The said extraction tower circle level control device of the utility model comprises extraction tower 1, and said extraction tower 1 is provided with differential pressure transmitter 2 and magnetic valve 3, the unlatching of the said magnetic valve 3 of said differential pressure transmitter 2 controls.
The course of work of the utility model is: set a upper pressure limit value for differential pressure transmitter 2, reach in limited time opens solenoid valve; The bottom of extractant from extraction tower emitted; Set a low pressure limit value, reach down in limited time, close magnetic valve; Extractant is increased in the amount of extraction tower, and circulation gets final product one by one.
As stated, although represented and explained the utility model that with reference to specific preferred embodiment it shall not be construed as the restriction to the utility model self.Under the spirit and scope prerequisite of the utility model that does not break away from the accompanying claims definition, can make various variations in form with on the details to it.
Claims (1)
1. an extraction tower circle level control device comprises extraction tower (1), it is characterized in that: said extraction tower (1) is provided with differential pressure transmitter (2) and magnetic valve (3), and said differential pressure transmitter (2) is controlled the unlatching of said magnetic valve (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247248XU CN202191725U (en) | 2011-07-14 | 2011-07-14 | Interface level control device for extraction tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120247248XU CN202191725U (en) | 2011-07-14 | 2011-07-14 | Interface level control device for extraction tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202191725U true CN202191725U (en) | 2012-04-18 |
Family
ID=45946657
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120247248XU Expired - Lifetime CN202191725U (en) | 2011-07-14 | 2011-07-14 | Interface level control device for extraction tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202191725U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480179A (en) * | 2013-09-29 | 2014-01-01 | 中国蓝星（集团）股份有限公司 | Liquid discharge control method, device and system of light liquid phase of extraction tower and extraction equipment |
-
2011
- 2011-07-14 CN CN201120247248XU patent/CN202191725U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103480179A (en) * | 2013-09-29 | 2014-01-01 | 中国蓝星（集团）股份有限公司 | Liquid discharge control method, device and system of light liquid phase of extraction tower and extraction equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180116 Address after: 210047 Nanking Chemical Industrial Park, Nanjing City, Jiangsu Province, Fang Shui Road 168 -095 Patentee after: Nanjing Rongxin Chemical Co., Ltd. Address before: Pukou District of Nanjing City, Jiangsu province Wujiang Town Village 211813 51 Mao Group Patentee before: Nanjing Wujiang Chemical Plant Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190122 Address after: Room 1129, 11th floor, Traffic Bureau Building, 95 Yingbin Avenue, Xinhua Street, Huadu District, Guangzhou City, Guangdong 510800 Patentee after: Guangzhou New Century New Energy Development Co., Ltd. Address before: 210047 -095, Fang Shui Road, Nanjing Chemical Industrial Park, Nanjing, Jiangsu, China, 168 Patentee before: Nanjing Rongxin Chemical Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201211 Address after: 210047 -095, Fang Shui Road, Nanjing Chemical Industrial Park, Nanjing, Jiangsu, China, 168 Patentee after: NANJING RONGXIN CHEMICAL INDUSTRIAL Co.,Ltd. Address before: Room 1129, 11th floor, Traffic Bureau Building, 95 Yingbin Avenue, Xinhua Street, Huadu District, Guangzhou City, Guangdong 510800 Patentee before: GUANGZHOU XINSHIJI NEW ENERGY DEVELOPMENT Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120418 |