CN103691140B - Condensed-water discharging system and control method thereof - Google Patents
Condensed-water discharging system and control method thereof Download PDFInfo
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- CN103691140B CN103691140B CN201310662172.0A CN201310662172A CN103691140B CN 103691140 B CN103691140 B CN 103691140B CN 201310662172 A CN201310662172 A CN 201310662172A CN 103691140 B CN103691140 B CN 103691140B
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Abstract
The invention discloses a condensed-water discharging system and a control method thereof. The condensed-water discharging system is used for an MVR evaporator which comprises a mechanical compression fan and a vacuumizing system. The condensed-water discharging system comprises a condensing storage tank, wherein the top part of the condensing storage tank is provided with three condensed-water pipelines which are respectively connected with a water collecting hopper at the front of an inlet of the mechanical compression fan, a condensed-water discharging port at the bottom end in a volute of the mechanical compression fan and an outlet of the mechanical compression fan; the top part of the condensed-water storage tank is also provided with a vacuum exhausting pipeline and a vacuum pumping pipeline which is connected with a vacuum pumping system; the bottom end of the condensed-water storage tank is provided with a condensed-water discharging pipeline; the three condensed-water feeding pipelines are respectively provided with a normally-opened electromagnetic valve; the vacuum exhausting pipeline is provided with a normally-opened electromagnetic valve; the vacuum pumping pipeline is provided with a normally-closed electromagnetic valve; the condensed-water discharging pipeline is provided with a normally-closed electromagnetic valve. The condensed-water discharging system and the control method disclosed by the invention have advantages that the automation degree is high, the labor amount of workers is reduced, the labor efficiency is improved and the operation power is greatly reduced.
Description
Technical field
The invention belongs to new forms of energy and energy-efficient-industrial energy saving field, be specifically related to a kind of MVR evaporimeter condensate water discharging system concentrated for solution.
Background technology
MVR evaporimeter is a kind of energy-efficient evaporation concentration equipment, is that a kind of electric energy replaces steam as the equipment of evaporation thermal source.It has introduced mechanical compress fan section than conventional evaporator more, but operating cost will well below directly using steam as the multiple-effect evaporation unit of thermal source.MVR evaporimeter only need use a small amount of raw steam as the thermal source of heater when starting shooting and running, in evaporimeter, solution is added into saturated indirect steam by the mechanical energy energy that heat vaporized generation indirect steam is inhaled into by impeller in mechanical compress blower fan, temperature and pressure is obtained for certain lifting, jet chimney again, the saturated vapor obtaining temperature rise turns back to the thermal source of heating clamber as oven heats, after completing a circulation, just can stop the raw steam as starting thermal source, whole system is almost do not need to use raw steam.Double evaporation-cooling part when pipeline is inhaled into blower fan is condensed into condensed water, the indirect steam entered in volute of blower also can produce a part of condensed water in compression temperature-rise period, and compression heat up after steam reenter evaporimeter by pipeline and have few steam-condensation and produce condensed water and flow in blower fan along tube wall, if this three partial condensations water processes the dynamic balancing affecting impeller not in time, also affect the stability of whole fan operation.The domestic method generally taking direct pump to discharge to this two parts condensed water at present, automaticity is low, and the operate power of pump is high, and cost is larger.
Summary of the invention
Object of the present invention is just to overcome above-mentioned deficiency, provides a kind of condensate water discharging system for MVR evaporimeter and control method thereof.
Key problem in technology of the present invention is the carrier of condensation storage tank as condensed water of an employing certain volume capacity, and by arranging pipeline and MVR evaporimeter organically combines, its concrete technical scheme is: a kind of condensate water discharging system, described drainage system is used for MVR evaporimeter, described MVR evaporimeter comprises mechanical compress blower fan and pumped vacuum systems, it is characterized in that comprising condensation storage tank, described condensation tank top be provided with three condensed water inlet channels connect mechanical compression fan import respectively before drip pan, the condensed water discharge outlet of mechanical compress volute of blower inner bottom and mechanical compress fan outlet, described condensation tank top is separately provided with a vacuum pumping pipeline and a vacuum lead connects pumped vacuum systems, described condensation storage tank bottom is provided with condensed water discharge pipe road, described three condensed water inlet channels are provided with normally open solenoid valve, described vacuum pumping pipeline is provided with normally closed solenoid valve, described vacuum lead is provided with normally closed solenoid valve, described condensed water discharge pipe road is provided with normally closed solenoid valve.Described drainage system connects DCS Distributed Control System.
A kind of condensate water discharging system control method, comprise the following steps: first when condensed water in DCS system display condensation storage tank reaches discharge water level, system sends instruction makes on condensed water inlet channel three normally open solenoid valves all close, normally closed solenoid valve on vacuum pumping pipeline is opened and is made vacuum evacuates, then the normally closed solenoid valve on condensed water discharge pipe road opens emptying condensed water, the emptying rear system of condensed water sends instruction makes the normally closed solenoid valve on condensed water discharge pipe road close, then the normally closed solenoid valve on vacuum lead is opened and is vacuumized condensation storage tank, when in condensation storage tank, vacuum is identical with the vacuum of the pumped vacuum systems of MVR evaporimeter, normally closed solenoid valve on vacuum lead is closed, three normally open solenoid valves on last condensed water inlet channel are all opened and are allowed condensed water enter condensation storage tank, such circulating is exercised intrasystem condensed water and is discharged.
Beneficial effect of the present invention: the present invention is by keeping same vacuum by condensation storage tank and MVR evaporimeter, it is made to be combined into unified entirety, then the opening and closing of DCS Distributed Control System Controlling solenoid valve are utilized, reach the object automatically controlled, its automaticity is high, reduce workman's amount of labour, raise labour efficiency, and greatly reduce the power of operation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Embodiment 1: a kind of condensate water discharging system, described drainage system is used for MVR evaporimeter, described MVR evaporimeter comprises mechanical compress blower fan 001 and pumped vacuum systems 002, it is characterized in that comprising condensation storage tank 003, described condensation storage tank 003 top be provided with three condensed water inlet channels 004 connect the import of mechanical compression fan 001 respectively before drip pan 011, the condensed water discharge outlet 012 of mechanical compress volute of blower inner bottom and mechanical compress fan outlet 013, described condensation storage tank 003 top is separately provided with a vacuum pumping pipeline 005 and a vacuum lead 006 connects pumped vacuum systems 002, described condensation storage tank 003 bottom is provided with condensed water discharge pipe road 007, described three condensed water inlet channels 004 are provided with normally open solenoid valve 041, described vacuum pumping pipeline 005 is provided with normally closed solenoid valve 051, described vacuum lead 006 is provided with normally closed solenoid valve 061, described condensed water discharge pipe road 007 is provided with normally closed solenoid valve 071.Described drainage system connects DCS Distributed Control System.First when condensed water in DCS system display condensation storage tank 003 reaches discharge water level, system sends instruction makes on condensed water inlet channel 004 three normally open solenoid valves 041 all close, normally closed solenoid valve 051 on vacuum pumping pipeline 005 is opened and is made vacuum evacuates, then the normally closed solenoid valve 071 on condensed water discharge pipe road 007 opens emptying condensed water, the emptying rear system of condensed water sends instruction makes the normally closed solenoid valve 071 on condensed water discharge pipe road 007 close, then the normally closed solenoid valve 061 on vacuum lead 006 is opened and is vacuumized condensation storage tank 003, when vacuum in condensation storage tank 003 is identical with the vacuum of the pumped vacuum systems 002 of MVR evaporimeter, normally closed solenoid valve 061 on vacuum lead 006 is closed, three normally open solenoid valves 041 on last condensed water inlet channel 004 are all opened and are allowed condensed water enter condensation storage tank 003, such circulating is exercised intrasystem condensed water and is discharged.
Claims (3)
1. a condensate water discharging system, described drainage system is used for MVR evaporimeter, described MVR evaporimeter comprises mechanical compress blower fan and pumped vacuum systems, it is characterized in that: comprise condensation storage tank, described condensation tank top is provided with three condensed water inlet channels, connect the drip pan before mechanical compression fan import respectively, the condensed water discharge outlet of mechanical compress volute of blower inner bottom and mechanical compress fan outlet, described condensation tank top is separately provided with the vacuum lead that a vacuum pumping pipeline and connects pumped vacuum systems, described condensation storage tank bottom is provided with condensed water discharge pipe road, described three condensed water inlet channels are provided with normally open solenoid valve, described vacuum pumping pipeline is provided with normally closed solenoid valve, described vacuum lead is provided with normally closed solenoid valve, described condensed water discharge pipe road is provided with normally closed solenoid valve.
2. a kind of condensate water discharging system according to claim 1, is characterized in that described drainage system connects DCS Distributed Control System.
3. the control method of a condensate water discharging system according to claim 2, it is characterized in that comprising the following steps: first when condensed water in DCS Distributed Control System display condensation storage tank reaches discharge water level, DCS Distributed Control System sends instruction makes three normally open solenoid valves on three condensed water inlet channels all close, normally closed solenoid valve on vacuum pumping pipeline is opened and is made vacuum evacuates, then the normally closed solenoid valve on condensed water discharge pipe road opens emptying condensed water, the emptying rear DCS Distributed Control System of condensed water sends instruction makes the normally closed solenoid valve on condensed water discharge pipe road close, then the normally closed solenoid valve on vacuum lead is opened and is vacuumized condensation storage tank, when in condensation storage tank, vacuum is identical with the vacuum of the pumped vacuum systems of MVR evaporimeter, normally closed solenoid valve on vacuum lead is closed, three normally open solenoid valves on last three condensed water inlet channels are all opened and are allowed condensed water enter condensation storage tank, such circulating is exercised condensed water and is discharged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662172.0A CN103691140B (en) | 2013-12-10 | 2013-12-10 | Condensed-water discharging system and control method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310662172.0A CN103691140B (en) | 2013-12-10 | 2013-12-10 | Condensed-water discharging system and control method thereof |
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| Publication Number | Publication Date |
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| CN103691140A CN103691140A (en) | 2014-04-02 |
| CN103691140B true CN103691140B (en) | 2015-07-22 |
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| CN201310662172.0A Active CN103691140B (en) | 2013-12-10 | 2013-12-10 | Condensed-water discharging system and control method thereof |
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| CN110975310B (en) * | 2019-12-23 | 2022-04-19 | 东方电气集团东方汽轮机有限公司 | Closed efficient waste heat utilization circulating system of wet air turbine compressor |
| CN112361838B (en) * | 2020-11-11 | 2022-02-22 | 招商局金陵船舶(威海)有限公司 | Condensate water lightering electric control system and use method thereof |
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| CN201688129U (en) * | 2010-03-30 | 2010-12-29 | 长沙赛普尔自动化工程设备有限公司 | Steam condensate water recovery device |
| CN203620270U (en) * | 2013-12-10 | 2014-06-04 | 江苏纵横浓缩干燥设备有限公司 | Condensate water drainage system |
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