CN204495105U - Three grades of air cooling Roots pump type evacuation system for steam condensers - Google Patents
Three grades of air cooling Roots pump type evacuation system for steam condensers Download PDFInfo
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- CN204495105U CN204495105U CN201520196265.3U CN201520196265U CN204495105U CN 204495105 U CN204495105 U CN 204495105U CN 201520196265 U CN201520196265 U CN 201520196265U CN 204495105 U CN204495105 U CN 204495105U
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Abstract
The utility model discloses a kind of three grades of air cooling Roots pump type evacuation system for steam condensers, comprise the exhaust pipe be connected with condenser gas outlet, exhaust pipe is also parallel with the vacuum keeping apparatus be connected to form by pipeline by three grades of air cooling lobe pumps, cooler, steam-water separator; Three grades of air cooling lobe pump air inlets, gas outlet, air cooling entrances are communicated with the air inlet/outlet of cooler respectively, three grades of exhaust outlets of cooler are communicated with steam-water separator air inlet with three grades of air cooling entrances of three grades of air cooling lobe pumps respectively by pipeline, and the gas outlet of steam-water separator is communicated with air by pipeline.In the utility model, the end vacuum value of three grades of air cooling lobe pumps is much larger than the end vacuum value of water ring vacuum pump group, and not only can maintain the original vacuum values of exhaust pipe, also can improve its vacuum further, amount of energy saving reaches 80%, adds social benefit.In sum, the utility model has the high and energy-conservation advantage of suction.
Description
Technical field
The utility model relates to a kind of evacuation system for steam condenser, particularly relates to a kind of three grades of air cooling Roots pump type evacuation system for steam condensers.
Background technology
In power plant, vacuum is larger on gross coal consumption rate impact.For 300-330MW unit, vacuum often improves 1Kpa, and corresponding gross coal consumption rate saves 2.6g/kWh.
Two high-power water ring vacuum pump groups installed by conventional steam turbine generator, the backing line of every platform water ring vacuum pump group is communicated with condenser gas outlet, water ring vacuum pump group comprises the hand-operated valve, motor-driven valve, water ring vacuum pump, condenser, the steam-water separator that are successively connected by pipeline, gives vent to anger to be discharged by the gas exhaust piping be connected with steam-water separator exhaust outlet.The effect of water ring vacuum pump group is the back pressure of the job requirement of setting up steam turbine, ensures the normal work of steam turbine.Simultaneously two water ring vacuum pump groups one run generating set initial start stage two to set up vacuum fast, and the time is generally 30 minutes; Two is after unit normally runs, two units close one, another work, and form two units one opens one for state, may again come into operation by two units when the too high or high back pressure heat supply in winter of circulating water temperature in summer, this kind of pumped vacuum systems power consumption is large simultaneously.
Present thermal power plant vavuum pump operation characteristic and situation are presented as: conventional vaccum-pumping equipment is water-jet pump and water ring vacuum pump, the former gradually substitute by the latter.Water-ring vacuum pump performance is relevant with the state (pressure, temperature) of institute's intake-gas and the temperature of working solution etc.Be subject to the impact of " limit swabbing pressure " simultaneously in running, easily in impeller surface, local water hammer occur, run noise very large and blade can be made to produce very large tension, long-play easily causes the fracture of blade, threatens the safe operation of unit.
Working solution temperature is comparatively large to the performance impact of water ring vacuum pump, and under high water temperature operating mode, its pumping performance declines 80-90% fast, is even zero in certain inlet pressure lower pumping amount.Here it is, and why some unit need start two water ring vacuum pumps to maintain the reason of condenser vacuum in summer.In addition due to the rising of working solution temperature, totally unfavorable to water-ring vacuum pump longtime running, cause following consequence:
(1) destroy vacuum, reduce unit economy
Along with working solution temperature raises, corresponding saturation pressure constantly raises, the pressure for vaporization of such as 30 DEG C is 4.241kpa, the pressure for vaporization of 40 DEG C is 7.25kpa, when water ring vacuum pump swabbing pressure is less than or equal to saturation pressure corresponding to work liquid temperature, some work liquid will be made to vaporize, water ring vacuum pump causes water ring vacuum pump to exert oneself wretched insufficiency because the gas aspirating the vaporization of self working medium and produce ties up water ring vacuum pump rate of air sucked in required, incoagulable gas will cause heat transfer deterioration and destroy condenser vacuum in condenser inner accumulated, the air that in steam, mass content accounts for 1% can make surface coefficient of heat transfer reduce by 60%, thus reduction unit economy.
(2) Water-ring vacuum pump cavitation
Water ring vacuum pump is on-stream, if when the absolute pressure of regional area working solution reduces the working solution pressure for vaporization at temperature at that time, working solution just starts vaporization at this place, produce a large amount of steam and form bubble, when the higher-pressure region of the liquid containing a large amount of bubble forward in impeller, the highly pressurised liquid around bubble causes bubble reduce sharp so that break.In water ring vacuum pump, produce process that bubble and bubbles burst make flow passage components be subjected to destroy is exactly cavitation process in vavuum pump.There is point corrosion in metal surface, there will be cellular damage time serious, if water ring vacuum pump vane has larger residual stress at cavitation position, also can cause Stress Release, crack, have a strong impact on device security Effec-tive Function.
(3) noise of vacuum equipment is large
Because needs set up vacuum fast, the power of motor therefore needed is comparatively large, for 300MW unit, needs the motor of 160KW, long time running, the decibel value (being less than or equal to 85dB) of the far super setting of its noise.
By above-mentioned adverse consequences analysis, set up the power generation such as thermoelectricity, thermoelectricity user and novel industry production standard is that gesture is required, taking effective efficient energy-saving vacuum equipment reach the improvement of original production pattern and technological process and optimize lifting, is the breach of the existing demand application of the industry and the breach of technology enforcement.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of vacuumizing and can save energy three grades of air cooling Roots pump type evacuation system for steam condensers.
For solving the problems of the technologies described above, the utility model comprises the exhaust pipe be connected with condenser gas outlet, described exhaust pipe is parallel with two water ring vacuum pump groups, it is characterized in that described exhaust pipe being also parallel with the vacuum keeping apparatus be connected to form by pipeline by three grades of air cooling lobe pumps, the cooler with three cooling chambers, steam-water separator, the one-level air inlet of described three grades of air cooling lobe pumps is communicated with exhaust pipe by air inlet pipe, described air inlet pipe is provided with the control valve of control piper break-make, the one-level gas outlet of described three grades of air cooling lobe pumps is communicated with the one-level air inlet of cooler by pipeline, the one-level exhaust outlet of described cooler is communicated with secondary inlet mouth with the one-level air cooling entrance of three grades of air cooling lobe pumps respectively by pipeline, the secondary gas outlet of described three grades of air cooling lobe pumps is communicated with the secondary inlet mouth of cooler by pipeline, the secondary exhaust of described cooler is communicated with three grades of air inlets with the secondary air cooling entrance of three grades of air cooling lobe pumps respectively by pipeline, three grades of gas outlets of described three grades of air cooling lobe pumps are communicated with three grades of air inlets of cooler by pipeline, three grades of exhaust outlets of described cooler are communicated with steam-water separator air inlet with three grades of air cooling entrances of three grades of air cooling lobe pumps respectively by pipeline, the gas outlet of described steam-water separator is communicated with air by pipeline.
Pipeline between described cooler three grades of exhaust outlets and steam-water separator air inlet is provided with silencing means.
In described steam-water separator, silencing means is installed.
Described control valve is included in hand-operated valve and motor-driven valve that air inlet pipe is arranged in series.
Described air inlet pipe is provided with the pressure difference switch be arranged in parallel with motor-driven valve, and the signal output part of described pressure difference switch is electrically connected with control circuit respectively with the control end of motor-driven valve.
The housing of described three grades of air cooling lobe pumps is provided with cooling water cavity, and described housing is provided with the water inlet and delivery port that are communicated with cooling water cavity, and described water inlet and delivery port are connected to inlet pipeline and outlet pipeline.
Described pipeline all uses seamless pipe to make.
The pipeline of described cooler between one-level air inlet and one-level exhaust outlet is provided with the first drainage arrangement, the discharge outlet of described first drainage arrangement and the water inlet of one-level fluid reservoir pass through pipeline connection, be provided with first row water valve bottom described one-level fluid reservoir, the top of described one-level fluid reservoir is provided with the first intake valve; The pipeline of described cooler between secondary inlet mouth and secondary exhaust is provided with the second drainage arrangement, the discharge outlet of described second drainage arrangement and the water inlet of secondary fluid reservoir pass through pipeline connection, be provided with second row water valve bottom described secondary fluid reservoir, the top of described secondary fluid reservoir is provided with the second intake valve.
The pipeline of described cooler between one-level air inlet and one-level exhaust outlet is provided with one-level discharge outlet, described one-level discharge outlet is connected with one-level drainpipe, described one-level drainpipe is provided with the one-level draining valve of control piper break-make, the end of described one-level drainpipe is communicated with the water inlet of one-level fluid reservoir, and described one-level fluid reservoir is provided with the first liquid level gauge; The pipeline of described cooler between secondary inlet mouth and secondary exhaust is provided with Municipal secondary effluent mouth, described Municipal secondary effluent mouth is connected with Municipal secondary effluent pipe, described Municipal secondary effluent pipe is provided with the Municipal secondary effluent valve of control piper break-make, the end of described Municipal secondary effluent pipe is communicated with the water inlet of secondary fluid reservoir, and described secondary fluid reservoir is provided with the second liquid level gauge; Described one-level draining valve, Municipal secondary effluent valve, first row water valve, second row water valve, the first intake valve, the second intake valve are magnetic valve and its control end is electrically connected with control circuit respectively, and the signal output part of described first liquid level gauge and the second liquid level gauge is electrically connected with control circuit respectively.
After adopting said structure, the utility model is arranged in parallel vacuum keeping apparatus on original exhaust pipe, vacuum keeping apparatus mainly comprises three grades of air cooling lobe pumps, because the gas major part gas aspirated in exhaust pipe is water vapour, by water vapour condensation, can reach and reduce water ring pump Compressed Gas total load.After unit normally runs, original two groups of water ring vacuum pumps are closed and are switched to vacuum keeping apparatus, because vacuum keeping apparatus power is little, energy-conservation object is reached by the mode large with little generation, and the end vacuum value of three grades of air cooling lobe pumps is much larger than the end vacuum value of water ring vacuum pump group, not only can maintain the original vacuum values of exhaust pipe, also can improve its vacuum further, amount of energy saving reaches 80%, adds social benefit.In sum, the utility model has the high and energy-conservation advantage of suction.
Accompanying drawing explanation
Below in conjunction with the drawings and the specific embodiments, the utility model is described in further detail:
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, three grades of air cooling Roots pump type evacuation system for steam condensers comprise the exhaust pipe 2 be connected with condenser 1 gas outlet, exhaust pipe 2 is parallel with two water ring vacuum pump groups 14, the concrete structure of water ring vacuum pump group 14 is prior art, does not repeat them here.Exhaust pipe 2 is also parallel with the vacuum keeping apparatus be connected to form by pipeline by three grades of air cooling lobe pumps 7, the cooler 8 with three cooling chambers, steam-water separator 10.The housing of three grades of air cooling lobe pumps 7 is provided with cooling water cavity, and housing is provided with the water inlet and delivery port that are communicated with cooling water cavity, and water inlet and delivery port are connected to inlet pipeline and outlet pipeline cools lobe pump.Cooler 8 adopts water-cooled, it is arranged respectively water inlet 81 and delivery port 82, and is connected cooling water pipeline on water inlet 81 with delivery port 82, and cooling water enters cooler 8 and cools the gas entered in cooler 8.
The one-level air inlet 11 of three grades of air cooling lobe pumps 7 is communicated with exhaust pipe 2 by air inlet pipe 3, air inlet pipe 3 is provided with the control valve of control piper break-make, control valve is included in hand-operated valve 4 and motor-driven valve 5 that air inlet pipe 3 is arranged in series, long-time not used time manual-lock hand-operated valve 4 valve of vacuum keeping apparatus, guarantee the safety of pipeline, when equipment normally runs, hand-operated valve 4 is normally open.Air inlet pipe 3 is provided with pressure difference switch 6, the signal output part of pressure difference switch 6 is electrically connected with control circuit respectively with the control end of motor-driven valve 5, the front and rear tube of pressure difference switch 6 is connected in the air inlet pipe 3 of motor-driven valve 5 both sides, when rear Guan Yuqian pipe differential pressure of atmospheric pressure is lower than certain value, pressure difference switch 6 outputs signal to control circuit, control circuit controls motor-driven valve 5 and opens, and the setting of motor-driven valve 5 can fast automaticly be opened, close down air inlet pipe 3 tunnel, improves controllability.The particular circuit configurations of control circuit is prior art, is not summary of the invention of the present utility model, does not repeat them here, and the utility model also can use DCS control system to carry out Long-distance Control by those skilled in the art, improves automatization level, increases work efficiency.
The one-level gas outlet 51 of three grades of air cooling lobe pumps 7 is communicated with the one-level air inlet 21 of cooler 8 by pipeline, the one-level exhaust outlet 41 of cooler 8 is communicated with secondary inlet mouth 12 with the one-level air cooling entrance 31 of three grades of air cooling lobe pumps 7 respectively by pipeline, the secondary gas outlet 52 of three grades of air cooling lobe pumps 7 is communicated with the secondary inlet mouth 22 of cooler 8 by pipeline, the secondary exhaust 42 of cooler 8 is communicated with three grades of air inlets 13 with the secondary air cooling entrance 32 of three grades of air cooling lobe pumps 7 respectively by pipeline, three grades of gas outlets 53 of three grades of air cooling lobe pumps 7 are communicated with three grades of air inlets 23 of cooler 8 by pipeline, three grades of exhaust outlets 43 of cooler 8 are communicated with steam-water separator 10 air inlet with three grades of air cooling entrances 33 of three grades of air cooling lobe pumps 7 respectively by pipeline, the gas outlet of steam-water separator 10 is communicated with air by pipeline, the discharge outlet of steam-water separator 10 is communicated with reclaim line, improve recovery utilization rate, reduction equipment operating cost.For reducing noise pollution when native system uses, the pipeline between cooler 8 three grades of exhaust outlets 43 and steam-water separator 10 air inlet being provided with silencing means 9, or in steam-water separator 10, silencing means being installed, or increasing at two places simultaneously.Silencing means can select existing muffling device on the market, and those skilled in the art, according to the specific requirement of noise reduction, can select out suitable silencing means, so be no longer described in detail its concrete structure herein.
For ensureing that three grades of air cooling lobe pumps play better vacuumizing effect, must ensure that the normal heat of cooler exchanges, for preventing in use, in cooler, condensed water too much causes cooler to lose heat exchange effect, the pipeline of the utility model between the one-level air inlet and one-level exhaust outlet of cooler is provided with the first drainage arrangement, and the pipeline between the secondary inlet mouth and secondary exhaust of cooler is provided with the second drainage arrangement.Drainage arrangement can select self-draining arrangement on the market, also following structure can be used to realize draining: the BOP of cooler between one-level air inlet and one-level exhaust outlet arranges one-level discharge outlet 83, one-level discharge outlet 83 connects one-level drainpipe, one-level drainpipe is arranged the one-level draining valve 85 of control piper break-make, the discharge ends of one-level drainpipe is communicated with the water inlet of one-level fluid reservoir 15, first row water valve 17 is set bottom one-level fluid reservoir 15, the top of one-level fluid reservoir 15 arranges the first intake valve 26, one-level fluid reservoir 15 is arranged the first liquid level gauge 24; The BOP of cooler between secondary inlet mouth and secondary exhaust arranges Municipal secondary effluent mouth 84, Municipal secondary effluent mouth 84 connects Municipal secondary effluent pipe, Municipal secondary effluent pipe is arranged the Municipal secondary effluent valve 86 of control piper break-make, the end of Municipal secondary effluent pipe is communicated with the water inlet of secondary fluid reservoir 16, second row water valve 18 is set bottom secondary fluid reservoir 16, the top of secondary fluid reservoir 16 arranges the second intake valve 27, secondary fluid reservoir 16 is arranged the second liquid level gauge 25.Wherein one-level draining valve 85, Municipal secondary effluent valve 86, first row water valve 17, second row water valve 18, first intake valve 26, second intake valve 27 is magnetic valve and its control end is electrically connected with control circuit respectively, the signal output part of the first liquid level gauge 24 and the second liquid level gauge 25 is electrically connected with control circuit respectively.During normal work, one-level draining valve 85 is normally open, first row water valve 17 and the first intake valve 26 are normally off, when the water level of one-level fluid reservoir 15 exceeds the higher limit of the first liquid level gauge 24 setting, first liquid level gauge 24 outputs signal to control circuit, control circuit controls one-level draining valve 85 and cuts out, first intake valve 26 and first row water valve 17 are opened, solidifying water in one-level fluid reservoir 15 is discharged, when the lower limit that the water level of one-level fluid reservoir 15 sets lower than the first liquid level gauge 24, first liquid level gauge 24 outputs signal to control circuit, control circuit controls the first intake valve 26 and first row water valve 17 cuts out, one-level draining valve 85 is opened, realize being communicated with of cooler and one-level fluid reservoir 15.On secondary fluid reservoir 16 each control valve unlatching, close identical with the situation on one-level fluid reservoir 15, do not repeat them here.The electrical connection of liquid level gauge, control valve and control circuit, those skilled in the art does not spend creative work to design according to technical requirement and draws, be not summary of the invention of the present utility model, do not repeat them here.
After generating set initial start stage two water ring vacuum pump groups 14 are run simultaneously and are set up vacuum fast, manually or automatically switch to vacuum keeping apparatus, gas enters three grades of air cooling lobe pump one-level air inlets 11 through air inlet pipe 3, after three grades of air cooling lobe pump 7 one stage of compression, the first cooling chamber of cooler 8 is entered from the one-level gas outlet 51 of three grades of air cooling lobe pumps 7, discharge from cooler 8 one-level exhaust outlet 41 at the cooled gas of the first cooling chamber, portion gas delivers to the one-level air cooling entrance 31 of three grades of air cooling lobe pumps 7 by the road, for cooling the gas entered from three grades of air cooling lobe pump 7 one-level air inlets 11, residual gas is delivered to the secondary inlet mouth 12 of three grades of air cooling lobe pumps 7 by the road, after three grades of air cooling lobe pump 7 two-stage compressions, Compressed Gas enters the second cooling chamber of cooler 8 from the secondary gas outlet 52 of three grades of air cooling lobe pumps 7, this time cooled gas is discharged from cooler secondary exhaust 42, part is delivered to the secondary air cooling entrance 32 of three grades of air cooling lobe pumps 7 by the road, for cooling the gas entered from three grades of air cooling lobe pump secondary inlet mouths 12, residual gas enters three grades of air inlets 13 of three grades of air cooling lobe pumps 7 by the road, after three grades of air cooling lobe pump 7 three stage compression, gas enters the 3rd cooling chamber of cooler 8 from three grades of air cooling lobe pumps, 7 three grades of gas outlets 53, cooled portion gas is discharged from three grades of exhaust outlets 43 of cooler 8, portion gas is delivered to three grades of air cooling entrances 33 of three grades of air cooling lobe pumps 7 by the road, for cooling the gas entered from three grades of air cooling lobe pumps, 7 three grades of air inlets 13, residual gas is delivered to steam-water separator 10 by the road, gas drains into air from the exhaust outlet of steam-water separator 10, moisture condensation becomes condensed water to flow in recovery channel by the road to recycle.
In this vacuum plant, pipeline used all uses seamless pipe to make, and ensures security of the present utility model, stability.Have good anti-cavitation ability when running under a high vacuum for making the utility model, impeller used, disk all adopt stainless steel to make.
The utility model is arranged in parallel vacuum keeping apparatus on original exhaust pipe 2, vacuum keeping apparatus mainly comprises three grades of air cooling lobe pumps 7, because the gas major part gas of suction in exhaust pipe 2 is water vapour, by water vapour condensation, can reaches and reduce water ring pump Compressed Gas total load.After unit normally runs, original two groups of water ring vacuum pumps are closed and are switched to vacuum keeping apparatus, because vacuum keeping apparatus power is little, energy-conservation object is reached by the mode large with little generation, and the end vacuum value of three grades of air cooling lobe pumps 7 is much larger than the end vacuum value of water ring vacuum pump group 14, not only can maintain the original vacuum values of exhaust pipe 2, also can improve its vacuum further, amount of energy saving reaches 80%, adds social benefit.And this vacuum keeping apparatus has self-suction, separately need not add the inner loop that booster pump can ensure working solution, its pumping performance does not also restrict by working solution temperature, relatively improves condenser vacuum.Vacuum keeping apparatus floor space is little, operates steadily, and noise significantly reduces, and reliability is high, and cost of equipment maintenance is low.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model.Previous embodiment has been described in detail the utility model, and for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.In every case, within inventive concept scope of the present utility model, any amendment made, equivalent replacement, improvement etc., be all included within protection domain of the present utility model.
Claims (9)
1. one kind three grades air cooling Roots pump type evacuation system for steam condensers, comprise the exhaust pipe (2) be connected with condenser (1) gas outlet, described exhaust pipe (2) is parallel with two water ring vacuum pump groups (14), it is characterized in that described exhaust pipe being also parallel with the vacuum keeping apparatus be connected to form by pipeline by three grades of air cooling lobe pumps (7), the cooler (8) with three cooling chambers, steam-water separator (10), the one-level air inlet of described three grades of air cooling lobe pumps (7) is communicated with exhaust pipe by air inlet pipe, described air inlet pipe (3) is provided with the control valve of control piper break-make, the one-level gas outlet of described three grades of air cooling lobe pumps is communicated with the one-level air inlet of cooler by pipeline, the one-level exhaust outlet of described cooler is communicated with secondary inlet mouth with the one-level air cooling entrance of three grades of air cooling lobe pumps respectively by pipeline, the secondary gas outlet of described three grades of air cooling lobe pumps is communicated with the secondary inlet mouth of cooler by pipeline, the secondary exhaust of described cooler is communicated with three grades of air inlets with the secondary air cooling entrance of three grades of air cooling lobe pumps respectively by pipeline, three grades of gas outlets of described three grades of air cooling lobe pumps are communicated with three grades of air inlets of cooler by pipeline, three grades of exhaust outlets of described cooler are communicated with steam-water separator air inlet with three grades of air cooling entrances of three grades of air cooling lobe pumps respectively by pipeline, the gas outlet of described steam-water separator (10) is communicated with air by pipeline.
2. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 1, is characterized in that the pipeline between described cooler three grades of exhaust outlets and steam-water separator air inlet is provided with silencing means (9).
3. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 1, is characterized in that being provided with silencing means in described steam-water separator (10).
4. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 1, is characterized in that described control valve is included in the hand-operated valve (4) and motor-driven valve (5) that air inlet pipe is arranged in series.
5. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 4, it is characterized in that described air inlet pipe is provided with the pressure difference switch (6) be arranged in parallel with motor-driven valve (5), the signal output part of described pressure difference switch (6) is electrically connected with control circuit respectively with the control end of motor-driven valve (5).
6. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 1, it is characterized in that the housing of described three grades of air cooling lobe pumps (7) is provided with cooling water cavity, described housing is provided with the water inlet and delivery port that are communicated with cooling water cavity, and described water inlet and delivery port are connected to inlet pipeline and outlet pipeline.
7. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 1, is characterized in that described pipeline all uses seamless pipe to make.
8. three grades of air cooling Roots pump type evacuation system for steam condensers according to any one of claim 1 to 7, it is characterized in that the pipeline of described cooler between one-level air inlet and one-level exhaust outlet is provided with the first drainage arrangement, the discharge outlet of described first drainage arrangement and the water inlet of one-level fluid reservoir (15) pass through pipeline connection, described one-level fluid reservoir (15) bottom is provided with first row water valve (17), and the top of described one-level fluid reservoir (15) is provided with the first intake valve (26); The pipeline of described cooler between secondary inlet mouth and secondary exhaust is provided with the second drainage arrangement, the discharge outlet of described second drainage arrangement and the water inlet of secondary fluid reservoir (16) pass through pipeline connection, described secondary fluid reservoir (16) bottom is provided with second row water valve (18), and the top of described secondary fluid reservoir (16) is provided with the second intake valve (27).
9. three grades of air cooling Roots pump type evacuation system for steam condensers according to claim 8, it is characterized in that the pipeline of described cooler between one-level air inlet and one-level exhaust outlet is provided with one-level discharge outlet, described one-level discharge outlet is connected with one-level drainpipe, described one-level drainpipe is provided with the one-level draining valve (85) of control piper break-make, the end of described one-level drainpipe is communicated with the water inlet of one-level fluid reservoir (15), and described one-level fluid reservoir (15) is provided with the first liquid level gauge (24); The pipeline of described cooler between secondary inlet mouth and secondary exhaust is provided with Municipal secondary effluent mouth, described Municipal secondary effluent mouth is connected with Municipal secondary effluent pipe, described Municipal secondary effluent pipe is provided with the Municipal secondary effluent valve (86) of control piper break-make, the end of described Municipal secondary effluent pipe is communicated with the water inlet of secondary fluid reservoir (16), and described secondary fluid reservoir (16) is provided with the second liquid level gauge (25); Described one-level draining valve (85), Municipal secondary effluent valve (86), first row water valve (17), second row water valve (18), the first intake valve (26), the second intake valve (27) is magnetic valve and its control end is electrically connected with control circuit respectively, and the signal output part of described first liquid level gauge (24) and the second liquid level gauge (25) is electrically connected with control circuit respectively.
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| CN201520196265.3U CN204495105U (en) | 2015-04-03 | 2015-04-03 | Three grades of air cooling Roots pump type evacuation system for steam condensers |
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| CN201520196265.3U CN204495105U (en) | 2015-04-03 | 2015-04-03 | Three grades of air cooling Roots pump type evacuation system for steam condensers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222980A (en) * | 2015-11-12 | 2016-01-06 | 浙江真空设备集团有限公司 | A kind of wind tunnel body pumped vacuum systems |
| CN111450565A (en) * | 2020-05-09 | 2020-07-28 | 江阴华西节能技术有限公司 | Dry vacuum main engine for alcohol extraction process and tail gas purification method thereof |
-
2015
- 2015-04-03 CN CN201520196265.3U patent/CN204495105U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105222980A (en) * | 2015-11-12 | 2016-01-06 | 浙江真空设备集团有限公司 | A kind of wind tunnel body pumped vacuum systems |
| CN111450565A (en) * | 2020-05-09 | 2020-07-28 | 江阴华西节能技术有限公司 | Dry vacuum main engine for alcohol extraction process and tail gas purification method thereof |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20190403 |