CN205315265U - Vacuum unit is maintain to water -cooled condenser - Google Patents
Vacuum unit is maintain to water -cooled condenser Download PDFInfo
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- CN205315265U CN205315265U CN201620081467.8U CN201620081467U CN205315265U CN 205315265 U CN205315265 U CN 205315265U CN 201620081467 U CN201620081467 U CN 201620081467U CN 205315265 U CN205315265 U CN 205315265U
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Abstract
The utility model relates to a vacuum unit is maintain to water -cooled condenser, the unit includes roots vacuum pump (3) on intelligent regulation valve (1) is connected to the gas outlet of condenser, roots vacuum pump (3) are through be listed as chimney coller (4) and automatic check valve (5) are connected to liquid ring vacuum pump (6), liquid ring vacuum pump (6) are connected to side formula deareator (16), it has digital display flowmeter (7), electromagnetism stop valve (8), heat exchanger (11) and filter (12) to establish ties on the pipeline between liquid ring vacuum pump (6) and the side formula deareator (16). The utility model relates to a vacuum unit is maintain to water -cooled condenser does not receive the temperature to influence and be high -efficient, energy -conserving.
Description
Technical field
The utility model relates to a kind of maintenance vacuum pump set, especially relates to a kind of unit utilizing water-cooled condenser to carry out vacuum maintenance, belongs to energy-conserving and environment-protective technical field.
Background technology
At present, when rotating with steam pushing turbine, it is necessary to arrange mouth at steam turbine and vaccum-pumping equipment is installed, main effect makes steam turbine steam discharge interruption-forming optimum vacuum, it is to increase heat energy turns the efficiency of mechanical energy, the waste vapour cooling simultaneously dished out by steam turbine, it is condensed into water, again sends boiler back to; The effect of condenser is trapping steam, makes steam be condensed into liquid water and is delivered in boiler by water circulating pump again; Condenser vacuum is more high, and the mechanical energy of generation is more big; Therefore, will ensure that generating set runs under optimum vacuum as far as possible is the desirable target that each power plant is pursued;
Meanwhile, the system that vacuumizes also is essential equipment in fired power generating unit, and it mainly acts on and is:
(1) setting up condenser vacuum in generating set initial start stage, when steam turbine admission warming-up, steam enters condenser, if certain vacuum do not set up by condenser, steam enters condenser will make condenser form malleation, damage equipment;
(2) in generating set running, condenser vacuum is kept, guarantee the safety and economic operation of generating set, because condenser its inside in running is in vacuum state, owing to pipeline and housing are not tight, air can bleed, thus destroy condenser vacuum, steam turbine safety and economic operation is unfavorable. Meanwhile, when air content is big, one can make the oxygen content of condensate water increase and aggravate equipment corrosion, and two to increase heat transfer resistance, impact cooling effect.
It is thus desirable to use equipment of bleeding to set up vacuum when steam turbine starts, the air operationally extracting the condenser that bleeds out and the steam not condensed, maintain the vacuum of condenser;
Nowadays the conventional equipment used is liquid ring vacuum series connection of pumps vacuum pump:
Pendular ring pump is a kind of low vacuum pump, and the impact that speed of bleeding is subject to water temperature is relatively big, if will in a short period of time (usual 30min) by the condenser (usual volume >=1000m of big volume3), so will select large-scale liquid-ring vacuum pump; And pendular ring pump is more big, power consumption, water content consumption are then more big, are unfavorable for energy-conserving and environment-protective;
Moreover, the vacuum of condenser requires that when VWO operating mode vacuum is higher, and single pendular ring pump can produce serious cavitation under this pressure, and vacuum rises difficult simultaneously; In this case, current solution increases one-level vacuum pump, but after increasing vacuum pump, total rate of air sucked in required will decline more than 50%, low load with strong power, greatly wastes the energy;
Meanwhile, the impact being subject to work liquid water temperature due to pendular ring pump pumping performance is bigger, and in water temperature, compared with being difficult to make condenser to maintain vacuum high, very stage energy consumption is big, impeller, the disk easily defect such as cavitation erosion.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, it is provided that a kind of not by Water Temperature and efficient, energy-conservation water-cooled condenser maintenance vacuum pump set.
The purpose of this utility model is achieved in that
A kind of water-cooled condenser maintains vacuum pump set, described unit includes the Roots vacuum pump being connected on the gas outlet of condenser through intelligent regulating valve, described Roots vacuum pump is connected to liquid-ring vacuum pump through tubulation formula cooler and automatic check valve, described liquid-ring vacuum pump is connected to side-mounted gas-water separation device, and the pipeline between described liquid-ring vacuum pump and side-mounted gas-water separation device is in series with digital indication flow meter, electromagnet cut off valve, heat exchanger and filter.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, and the pipeline between described liquid-ring vacuum pump and side-mounted gas-water separation device is also in series with temperature controller and bi-metal temperature meter.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, and the pipeline between described intelligent regulating valve and Roots vacuum pump is serially connected with digital display intelligent pressure inverting device.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, and described side-mounted gas-water separation device is provided with the electromagnetism water compensating valve being connected with water source.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, and described side-mounted gas-water separation device is provided with Intelligent liquid level controller and emptying valve.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, and described Roots vacuum pump is air-cooled Roots vacuum pump.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, and described heat exchanger is tubulation formula or plate-sheet-type heat exchanger.
A kind of water-cooled condenser of the utility model maintains vacuum pump set, the material stainless steel of described heat exchanger or titanium material.
Compared with prior art, the beneficial effects of the utility model are:
Adopt the utility model to substitute condenser and maintain vacuum, the utility model vacuum pump set is the unit being in series by Roots vacuum pump and small-scale liquid ring vacuum pump, Roots's pump is a kind of vavuum pump that can run within the scope of wider pressure that can bear High Pressure Difference, high compression ratio, less pendular ring pump can be configured after applying this pump, limit vacuum can reach about 300pa, and the energy is saved greatly; Meanwhile, after series connection, pumping efficiency is more obvious compared to vacuum pump effect, vacuum is stable, bad working environments in summer time, do not affect the normal operation of unit; Therefore for needing this characteristic of stable vacuum in condenser, the utility model vacuum pump set is best selection;
Simultaneously, through us for many years to the transformation of domestic various places power plant different size generating set vacuum equipment, after adopting the utility model vacuum pump set, working vacuum adopts pendular ring pump to have clear improvement than original, the power consumption of vacuum pump set saves more than 66% than stoste ring vacuum pump, and energy-saving effect is very remarkable.
For the generating set of a set of 660WM, originally water-cooled condenser maintains the large-scale liquid-ring vacuum pump that vacuum have employed a 132kw, actual power loss about 110kw operationally, and the actual power loss after the vacuum pump set adopting this novel is only 25kw, water consumption is only about the 1/6 of original liquid-ring vacuum pump, and energy-saving effect is clearly.
Accompanying drawing explanation
Fig. 1 is the structure schematic diagram that a kind of water-cooled condenser of the utility model maintains vacuum pump set.
Wherein:
Intelligent regulating valve 1, digital display intelligent pressure inverting device 2, Roots vacuum pump 3, tubulation formula cooler 4, automatic check valve 5, liquid-ring vacuum pump 6, digital indication flow meter 7, electromagnet cut off valve 8, temperature controller 9, bi-metal temperature meter 10, heat exchanger 11, filter 12, Intelligent liquid level controller 13, emptying valve 14, electromagnetism water compensating valve 15, side-mounted gas-water separation device 16.
Specific embodiment party formula
See Fig. 1, a kind of water-cooled condenser that the utility model relates to maintains vacuum pump set, it is preferred that described unit includes the Roots vacuum pump 3(being connected on the gas outlet of condenser through intelligent regulating valve 1, pipeline between described intelligent regulating valve 1 and Roots vacuum pump 3 is serially connected with digital display intelligent pressure inverting device 2), the outlet of described Roots vacuum pump 3 is connected to liquid-ring vacuum pump 6 through tubulation formula cooler 4 and automatic check valve 5, described liquid-ring vacuum pump 6 is connected to side-mounted gas-water separation device 16, described side-mounted gas-water separation device 16 is provided with the electromagnetism water compensating valve 15 being connected with water source, digital indication flow meter 7, electromagnet cut off valve 8, temperature controller 9, bi-metal temperature meter 10, heat exchanger 11 and filter 12 it is in series with between described liquid-ring vacuum pump 6 and side-mounted gas-water separation device 16,
Further, described side-mounted gas-water separation device 16 is provided with Intelligent liquid level controller 13 and emptying valve 14, Intelligent liquid level controller 13, emptying valve 14 coordinate electromagnetism water compensating valve 15 to realize intelligentized control method by SEA LEVEL VARIATION;
Further, described Roots vacuum pump 3 is air-cooled Roots vacuum pump;
Further, described heat exchanger 11 is tubulation formula or plate-sheet-type heat exchanger, and heat exchanger material can adopt stainless steel or titanium material etc., can meet the different use conditions of the power plant adopting common river, lake water and cooled with seawater like this.
Work principle of the present utility model is: the water-cooled condenser gas outlet of steam turbine is directly connected with the air inlet of this maintenance vacuum pump set, water vapour enters vacuum pump set from intelligent regulating valve 1, bleed by Roots vacuum pump 3 and compress laggard tubular type cooler 4 of falling in lines, in tubulation formula cooler, a large amount of water vapours is condensed into water, the water being condensed and the water vapour and the air that are not condensed on a small quantity are sucked by liquid-ring vacuum pump 6, the water vapour that part is not condensed is condensed into water after being re-compressed in liquid-ring vacuum pump 6 and is discharged and enters in gas-water separation device 16, by the mode of cyclonic separation, water is separated completely with the air of discharge in gas-water separation device 16, water is left reuse again, a small amount of air directly enters in air, water in gas-water separation device 16 by filter 12 overanxious after can be used for after the cooling of heat exchanger 11 again to liquid-ring vacuum pump 6 reuse again, all kinds of valves in unit, instrument, control element provides definitely to guarantee that unit runs reliably and with long-term.
In addition: it is noted that above-mentioned specific embodiment party formula is only an optimization scheme of this patent, any change that the technical staff of this area does according to above-mentioned design or improvement, all within the protection domain of this patent.
Claims (8)
1. a water-cooled condenser maintains vacuum pump set, it is characterized in that: described unit includes the Roots vacuum pump (3) being connected on the gas outlet of condenser through intelligent regulating valve (1), described Roots vacuum pump (3) is connected to liquid-ring vacuum pump (6) through tubulation formula cooler (4) and automatic check valve (5), described liquid-ring vacuum pump (6) is connected to side-mounted gas-water separation device (16), pipeline between described liquid-ring vacuum pump (6) and side-mounted gas-water separation device (16) is in series with digital indication flow meter (7), electromagnet cut off valve (8), heat exchanger (11) and filter (12).
2. a kind of water-cooled condenser maintains vacuum pump set as claimed in claim 1, it is characterised in that: the pipeline between described liquid-ring vacuum pump (6) and side-mounted gas-water separation device (16) is also in series with temperature controller (9) and bi-metal temperature meter (10).
3. a kind of water-cooled condenser maintains vacuum pump set as claimed in claim 1, it is characterised in that: the pipeline between described intelligent regulating valve (1) and Roots vacuum pump (3) is serially connected with digital display intelligent pressure inverting device (2).
4. a kind of water-cooled condenser maintains vacuum pump set as claimed in claim 1, it is characterised in that: described side-mounted gas-water separation device (16) is provided with the electromagnetism water compensating valve (15) being connected with water source.
5. as described in claim 1 or 4, a kind of water-cooled condenser maintains vacuum pump set, it is characterised in that: described side-mounted gas-water separation device (16) is provided with Intelligent liquid level controller (13) and emptying valve (14).
6. a kind of water-cooled condenser maintains vacuum pump set as claimed in claim 1, it is characterised in that: described Roots vacuum pump (3) is air-cooled Roots vacuum pump.
7. a kind of water-cooled condenser maintains vacuum pump set as claimed in claim 1, it is characterised in that: described heat exchanger (11) is tubulation formula or plate-sheet-type heat exchanger.
8. a kind of water-cooled condenser maintains vacuum pump set as claimed in claim 7, it is characterised in that: the material stainless steel of described heat exchanger (11) or titanium material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620081467.8U CN205315265U (en) | 2016-01-28 | 2016-01-28 | Vacuum unit is maintain to water -cooled condenser |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620081467.8U CN205315265U (en) | 2016-01-28 | 2016-01-28 | Vacuum unit is maintain to water -cooled condenser |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014997A (en) * | 2016-07-12 | 2016-10-12 | 上海伊莱茨真空技术有限公司 | Three-level-roots-water ring intelligent frequency converting control vacuum system and control method thereof |
| CN107655351A (en) * | 2017-10-25 | 2018-02-02 | 湖南和鑫新能源技术有限公司 | A kind of steam condenser of steam turbine set vacuum with high-low pressure condenser maintains equipment |
| WO2020078471A1 (en) * | 2018-10-18 | 2020-04-23 | Changxin Memory Technologies, Inc. | A degassing system, a degassing tower, and a water system having the same |
-
2016
- 2016-01-28 CN CN201620081467.8U patent/CN205315265U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106014997A (en) * | 2016-07-12 | 2016-10-12 | 上海伊莱茨真空技术有限公司 | Three-level-roots-water ring intelligent frequency converting control vacuum system and control method thereof |
| WO2018010536A1 (en) * | 2016-07-12 | 2018-01-18 | 上海伊莱茨真空技术有限公司 | Three-level roots water-ring intelligent frequency conversion control vacuum system and control method therefor |
| CN106014997B (en) * | 2016-07-12 | 2018-07-13 | 上海伊莱茨真空技术有限公司 | A kind of three-level Roots-water ring intelligent frequency-conversion control vacuum system and its control method |
| GB2568609A (en) * | 2016-07-12 | 2019-05-22 | Elivac Co Ltd | Three-level roots water-ring intelligent frequency conversion control vacuum system and control method therefor |
| CN107655351A (en) * | 2017-10-25 | 2018-02-02 | 湖南和鑫新能源技术有限公司 | A kind of steam condenser of steam turbine set vacuum with high-low pressure condenser maintains equipment |
| WO2020078471A1 (en) * | 2018-10-18 | 2020-04-23 | Changxin Memory Technologies, Inc. | A degassing system, a degassing tower, and a water system having the same |
| US11891310B2 (en) | 2018-10-18 | 2024-02-06 | Changxin Memory Technologies, Inc. | Degassing system, a degassing tower, and a water system having the same |
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