CN207137643U - Combined semi lean solution pump control system - Google Patents
Combined semi lean solution pump control system Download PDFInfo
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- CN207137643U CN207137643U CN201720856414.3U CN201720856414U CN207137643U CN 207137643 U CN207137643 U CN 207137643U CN 201720856414 U CN201720856414 U CN 201720856414U CN 207137643 U CN207137643 U CN 207137643U
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- leanpump
- turbine
- lean solution
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Abstract
The utility model discloses a kind of combined semi lean solution pump control system, including the more than two semi-leanpumps being connected in parallel between semi lean solution inlet pipe and gathering tube, it is characterized in that one of semi-leanpump is connected with turbine, the import of turbine is connected by feed tube with rich solution case, and the outlet of turbine is connected with drain pipe；Remaining semi-leanpump is and associated electric motor；The outlet of each semi-leanpump is connected by respective regulating valve with gathering tube；The utility model can make full use of the energy of high pressure rich solution, reduce system energy consumption, while the fluctuation of system pipe network pressure is greatly reduced, and ensure the stability of hydraulic system.
Description
Technical field
It the utility model is related to a kind of combined semi lean solution pump control system.
Background technology
At present, in industrial tail gas purified treatment, as the decarbonization, desulfuration of boiler exhaust gas uses in absorption tower inner high voltage shape more
Carried out under state；Rich solution after absorption regenerates semi lean solution at ambient pressure, and it is laggard semi lean solution need to be forced into high pressure with semi-leanpump
Enter absorption tower, realization recycles, but the lift of circulating pump used is higher, and power of motor is larger, and energy consumption is higher；And leave absorption
The rich solution of tower enters regenerative system after pressure-reducing valve is down to lower pressure, causes the waste of high pressure rich solution potential energy again.
The content of the invention
The purpose of this utility model is to be directed to deficiencies of the prior art, there is provided a kind of combined semi lean pump control
System processed, it can make full use of the energy of high pressure rich solution, reduce system energy consumption, while the ripple of system pipe network pressure is greatly reduced
It is dynamic, ensure the stability of hydraulic system.
To reach above-mentioned purpose, a kind of combined semi lean solution pump control system of the present utility model, including to be connected in parallel on half poor
More than two semi-leanpumps between liquid inlet pipe and gathering tube, it is characterised in that one of semi-leanpump and turbine phase
Connection, the import of turbine are connected by feed tube with rich solution case, and the outlet of turbine is connected with drain pipe；Remaining semi-leanpump
And associated electric motor；The outlet of each semi-leanpump is connected by respective regulating valve with gathering tube.
A semi-leanpump of the present utility model drives work by high pressure rich solution by turbine, can make full use of high pressure rich solution
Energy, reduce system energy consumption；It is each by adjusting because the rotating speed of the semi-leanpump driven by turbine changes at any time
The openings of sizes of regulating valve, the outlet pressure of achievable each semi-leanpump is basically identical, and the ripple of system pipe network pressure is greatly reduced
It is dynamic, ensure the stability of hydraulic system；
As further improvement of the utility model, the regulating valve is solenoid valve；It can be achieved to automatically control, protect
Card adjustment operational consistency；
As further improvement of the utility model, the feed tube is also connected with drain pipe by by-passing valve；As occurred
Emergency condition or when need to overhaul, can open by-passing valve, protect turbine；
In summary, the utility model can make full use of the energy of high pressure rich solution, reduce system energy consumption, be greatly reduced simultaneously
The fluctuation of system pipe network pressure, ensure the stability of hydraulic system.
Brief description of the drawings
Fig. 1 is the hydraulic schematic diagram of the utility model embodiment.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
As shown in figure 1, the combined semi lean solution pump control system, including be connected in parallel between semi lean solution inlet pipe 1 and gathering tube 2
Three semi-leanpumps 3,4,5, wherein semi-leanpump 3 is connected with turbine 6, and the import of turbine 6 passes through feed tube and rich solution
Case 7 is connected, and the outlet of turbine 6 is connected with drain pipe, and feed tube is also connected with drain pipe by by-passing valve 8；Remaining is half poor
Liquid pump 4,5 is connected with respective motor 9；The outlet of each semi-leanpump 3,4,5 by respective solenoid valve 10 or
11 or 12 are connected with gathering tube 2.
In use, the high pressure rich solution in rich solution case 7 promotes turbine 6 to rotate, turbine 6 drives semi-leanpump 3 to work, half
Lean pump 4,5 is driven by respective motor 9；The utility model can make full use of the energy of high pressure rich solution, reduce system energy consumption；By
Change at any time in the rotating speed of the semi-leanpump 3 driven by turbine 6, when compared with the slow-speed of revolution, into the work of semi-leanpump 3
The flow or pressure difference for making liquid reduce, and its power output reduces, and to ensure that the change of the lift of semi-leanpump 3 is smaller, can adjust and reduce
The opening of solenoid valve 10, required power reduce, and its rotating speed no longer declines, although rotating speed and flow-reduction, according to its flow-
Heat-capacity curve, but lift ascensional range is smaller, while the opening of solenoid valve 11,12 is also synchronously turned down, semi lean solution
The lift of pump 4,5 will rise, it is ensured that the outlet pressure of semi-leanpump 3 and semi-leanpump 4,5 is basically identical；Similarly, it is poor half
When the rotating speed of liquid pump 3 is higher, flow or pressure difference into the working solution of semi-leanpump 3 increase, the increase of its power output, to ensure
The lift change of semi-leanpump 3 is smaller, can adjust the opening of increase solenoid valve 10, required power increase, its rotating speed is no longer
Rise, although rotating speed and flow increase, lift fall is smaller, while the opening of solenoid valve 11,12 is also synchronous
Increasing, the lift of semi-leanpump 4,5 will decline, it is ensured that the outlet pressure of semi-leanpump 3 and semi-leanpump 4,5 is basically identical,
The fluctuation of system pipe network pressure can be greatly reduced, avoid the formation of hydraulic shock, ensure the stability of hydraulic system；Such as meet an urgent need
Situation or when need to overhaul, can open by-passing valve 8, protect turbine 6.
Claims (3)
1. a kind of combined semi lean solution pump control system, including be connected in parallel on more than two between semi lean solution inlet pipe and gathering tube
Semi-leanpump, it is characterised in that one of semi-leanpump is connected with turbine, and the import of turbine passes through feed tube and rich solution
Case is connected, and the outlet of turbine is connected with drain pipe；Remaining semi-leanpump is and associated electric motor；The outlet of each semi-leanpump
It is connected by respective regulating valve with gathering tube.
2. combined semi lean solution pump control system as claimed in claim 1, it is characterised in that the regulating valve is that electromagnetism is adjusted
Save valve.
3. combined semi lean solution pump control system as claimed in claim 1 or 2, it is characterised in that the feed tube and drain pipe
Also it is connected by by-passing valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856414.3U CN207137643U (en) | 2017-07-14 | 2017-07-14 | Combined semi lean solution pump control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720856414.3U CN207137643U (en) | 2017-07-14 | 2017-07-14 | Combined semi lean solution pump control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207137643U true CN207137643U (en) | 2018-03-27 |
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ID=61675305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720856414.3U Active CN207137643U (en) | 2017-07-14 | 2017-07-14 | Combined semi lean solution pump control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207137643U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808644A (en) * | 2020-07-06 | 2020-10-23 | 中国石油天然气集团公司 | Method and device for recovering rich liquid energy in decarburization production of natural gas purification plant |
-
2017
- 2017-07-14 CN CN201720856414.3U patent/CN207137643U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111808644A (en) * | 2020-07-06 | 2020-10-23 | 中国石油天然气集团公司 | Method and device for recovering rich liquid energy in decarburization production of natural gas purification plant |
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