CN202548656U - Liquid level detecting and controlling device of scrubbing tower - Google Patents
Liquid level detecting and controlling device of scrubbing tower Download PDFInfo
- Publication number
- CN202548656U CN202548656U CN201220058110XU CN201220058110U CN202548656U CN 202548656 U CN202548656 U CN 202548656U CN 201220058110X U CN201220058110X U CN 201220058110XU CN 201220058110 U CN201220058110 U CN 201220058110U CN 202548656 U CN202548656 U CN 202548656U
- Authority
- CN
- China
- Prior art keywords
- liquid level
- level transmitter
- scrubbing tower
- fluid level
- plc controller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a liquid level detecting and controlling device of a scrubbing tower. The device comprises a PLC controller, a liquid level transmitter and a gas pressure sensor, wherein a connecting tube of the liquid level transmitter is communicated with a side wall at the lower part of the scrubbing tower through a flange, and the liquid level transmitter and the gas pressure sensor are connected with the PLC controller through conducting wires. The utility model has the advantages of simplified structure, reduced working position of the liquid level transmitter, significant convenience for the maintenance work of equipment, and convenient application.
Description
Technical field
The utility model relates to a kind of scrubbing tower Level Detection control device.
Background technology
The washing of present chemical industry operation district, ironmaking company coke-oven plant final cooling tower, Ammonic washing tower, wash benzene tower liquid level and all belong to the category-A checkout equipment; Adopt the differential pressure type fluid level transmitter; Utilize positive negative pressure constant pressure difference to detect liquid level in the tower; And contain a large amount of naphthalenes and tar in the medium in the tower, for guaranteeing the measurement data accuracy, suction side needs the pipe of cleaning pressure regularly.Suction side is 4.5m apart from ground, no safety inspection platform.Build inspection platform like the scene, because restrictions such as field apparatus, pipelines, difficulty is bigger, and it is also bigger to take site space.Have at present harm, specific as follows: 1, suction side apart from ground nearly 5m, inspection, change instrument and do not have the safety inspection platform.Maintenance safety can't ensure, and have unsafe factor in the maintenance process.2, equipment daily servicing difficulty, pressure breaks down: the difficult discoveries of reason such as naphthalene obstruction occur like two flange suction sides, operation side is not easy to find that the processing time is longer.And there is unsafe factor in the maintenance process; 3, maintenance cost is high, 28000 yuan of the two flange fluid level transmitter buying of former measuring equipment 3051L+1199 average prices; Maintenance cost is high.
Summary of the invention
The purpose of the utility model is to provide a kind of scrubbing tower Level Detection control device, and it is simple in structure, through reducing the working position of fluid level transmitter, can make things convenient for the Maintenance and Repair work of equipment greatly.
The purpose of the utility model is to realize like this; A kind of scrubbing tower Level Detection control device; Comprise PLC controller, fluid level transmitter and gas pressure sensor; The connecting pipe of said fluid level transmitter is connected with the lower sides of scrubbing tower through flange, and fluid level transmitter all links to each other with the PLC controller through lead with the gas pressure sensor.
The utility model inserts the one's respective area electric control system through connect fluid level transmitter in the scrubbing tower bottom with normal pressure fluid level transmitter signal, reaches the interlocked control purpose.Signal gets into the PLC controller, accomplishes pressure reduction calculating and demonstration through computer program.Difficult problems such as maintenance difficult under the fluid level transmitter distress condition of top, high tower position, processing time length, maintenance cost height have been solved.With certain coke-oven plant is example, adopts the utility model device, 1, original 5 towers are irritated the spare part that 5 pairs of flange fluid level transmitters that remove can be used as other ammonia still liquid levels, burner-gas cooler liquid level, debenzolizing tower liquid level etc.; 2, can save the material and the labour cost of 5 high platform buildings of 5m; Do not take site space; 3, be convenient to the equipment daily servicing, operation side can find immediately when pressure broke down, and can deal with in the 30min; And the difficult discoveries of reason such as naphthalene obstruction appear in two flange suction sides, processing time＞60min, and have unsafe factor in the maintenance process.4, measuring principle is not done any change, and measuring accuracy is unaffected.5, long-term spare part expense reduces nearly 50%.The utility model is simple in structure, has reduced the working position of fluid level transmitter, greatly facilitates the Maintenance and Repair work of equipment, and is easy to use.
Description of drawings
To combine accompanying drawing that the utility model is done further detailed explanation below.
Fig. 1 is the main TV structure synoptic diagram of the utility model.
Embodiment
A kind of scrubbing tower Level Detection control device; As shown in Figure 1; Comprise PLC controller 4, fluid level transmitter 3 and gas pressure sensor 1; The connecting pipe of said fluid level transmitter 3 is connected through the lower sides of flange with scrubbing tower 2, and fluid level transmitter 3 all links to each other with PLC controller 4 through lead with gas pressure sensor 1.The utility model simplifies the structure, and has reduced the working position of fluid level transmitter, greatly facilitates the Maintenance and Repair work of equipment, and is easy to use.
Claims (1)
1. scrubbing tower Level Detection control device; Comprise PLC controller, fluid level transmitter and gas pressure sensor; It is characterized in that: the connecting pipe of said fluid level transmitter is connected with the lower sides of scrubbing tower through flange, and fluid level transmitter all links to each other with the PLC controller through lead with the gas pressure sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220058110XU CN202548656U (en) | 2012-02-22 | 2012-02-22 | Liquid level detecting and controlling device of scrubbing tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220058110XU CN202548656U (en) | 2012-02-22 | 2012-02-22 | Liquid level detecting and controlling device of scrubbing tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202548656U true CN202548656U (en) | 2012-11-21 |
Family
ID=47169264
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220058110XU Expired - Fee Related CN202548656U (en) | 2012-02-22 | 2012-02-22 | Liquid level detecting and controlling device of scrubbing tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202548656U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932561A (en) * | 2015-05-04 | 2015-09-23 | 中石化宁波工程有限公司 | Synthetic gas washing tower liquid level control system and control method thereof |
-
2012
- 2012-02-22 CN CN201220058110XU patent/CN202548656U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104932561A (en) * | 2015-05-04 | 2015-09-23 | 中石化宁波工程有限公司 | Synthetic gas washing tower liquid level control system and control method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121121 Termination date: 20130222 |