CN1338577A - Energy-saving steam jet vacuum equipment - Google Patents
Energy-saving steam jet vacuum equipment Download PDFInfo
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- CN1338577A CN1338577A CN 00126120 CN00126120A CN1338577A CN 1338577 A CN1338577 A CN 1338577A CN 00126120 CN00126120 CN 00126120 CN 00126120 A CN00126120 A CN 00126120A CN 1338577 A CN1338577 A CN 1338577A
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Abstract
An energy-saving vacuumizing unit by jetting water steam is disclosed, which features the aqueous solution of lithium brimide is used as abosorptive condensing medium. Its advantages include less consumption of steam, high quality of working steam, and greatly saving energy and water.
Description
The present invention relates to a kind of steam jet vacuum equipment, especially a kind of energy-saving steam jet vacuum equipment.
Advantages such as steam jet vacuum equipment is simple in structure with it, and is easy to operate, and maintenance expenses is low, reliable operation and be widely used in each industrial fields such as metallurgy, chemical industry, food, tobacco, pharmacy, electroceramics.
Along with the continuous development of industrial economy, all kinds of resources and energy consumption strengthen day by day, in order to protect and to economize on resources, realize sustainable economic development, and country has higher requirement to the reasonable utilization of resource and energy consumption.Energy consumption and water resource waste are the key issues of its development and application of puzzlement always in existing vacuum technique is used.The mode that obtains vacuum environment at present mainly contains two kinds, and a kind of is to utilize oil-sealed rotary pump to obtain vacuum, and the shortcoming of this mode is that equipment investment is big, and electric energy consumption is big, inefficiency, maintenance expenses height in addition; The 2nd, adopt steam jet vacuum equipment to obtain vacuum, this mode exists steam consumption quantity big when working efficiency has been saved equipment and safeguarded investment having improved, need a large amount of circulating waters, the water resources consumption waste is serious, equipment is to the summer high temperature environment bad adaptability, shortcomings such as capital investment is bigger, these problems that prior art exists have had a strong impact on applying of steam jet vacuum system.
It is little to the purpose of this invention is to provide a kind of investment, and energy consumption is little and only need the steam jet vacuum system of small amount of recycled water.
Technological scheme of the present invention is to adopt certain density lithium bromide water solution to provide high-quality working steam and circulating condensing agent as working medium continuously for vacuum system, this device comprises vaporizer, heat exchanger, radiator, steam distributor, two above steam jet ejectors, water pot, more than one condenser and water pump, vaporizer links by pipeline and steam distributor, and steam distributor links with steam jet ejector respectively by pipeline, steam jet ejector links by pipeline and condenser, the waste pipe of condenser enters in the water pot, and the liquid in the water pot is extracted in the heat exchanger by water pump, and heat exchanger and vaporizer link by pipeline, vaporizer links by pipeline and heat exchanger, heat exchanger links by pipeline and radiator, and radiator links by pipeline and condenser, and lithium bromide water solution is housed in the vaporizer.
Above-mentioned waste pipe is that the end of the U-shaped waste pipe and the back remittance waste pipe of connecting mutually enters in the water pot.
Above-mentioned lithium bromide water solution concentration is 50-60%.
Technological scheme of the present invention compared with prior art has following advantage:
1, can reduce steam energy consumption and circulating water consumption significantly.Because existing steam jet vacuum system all is to adopt circulating water as cooling medium, vacuum environment is obtained in injection with water vapor, so water consumption and energy consumption are all very big, and the present invention adopts the lithium-bromide solution of specific concentrations to replace the aqueous solution of the prior art as the circulation working medium, closed circulation operation in device, for vacuum system provides high-quality working steam and circulating condensing agent, so can reduce steam energy consumption and water resources consumption significantly.
2, improved the environmental suitability of vacuum system.Because the present invention has taked new working medium, water-saving result is obvious, and in addition, vacuum system adopts the sealing inner loop mode when work, be not subjected to the influence of external environment substantially, has improved the environmental suitability of device.
3, can significantly reduce equipment investment.Because the present invention creatively adopts bibulous lithium bromide water solution more obvious than condensation effect as absorption condensation agent and water, so just can reduce the outlet pressure of steam jet ejector greatly, thereby reduced the resistance of bleeding in the condenser, the allocating power of sparger is reduced greatly, circulating water cooling systems such as cooling tower in the existing vacuum system, pond, pipeline have also been saved simultaneously, compared with prior art structure is simple more compact so this installs, and the investment of whole vacuum system also significantly reduces.
Be that example is done an energy consumption situation contrast with 1000 tons of refinings of present employed annual output magnesium with the steam jet vacuum system below: (working every day 24 hours, annual) by 300 days
1, coal consumption: refining magnesium vacuum system per hour consumes 1.5 tons of steam, and raw coal per ton produces 5 tons of steam coals per ton by 120 yuan of calculating, and then a year coal consumption expense is: 1.5 * 24 * 300 * 120 ÷, 5 ÷ 10000=25.92 (ten thousand yuan).
Vacuum system of the present invention per hour consumes 0.75 ton of steam when keeping identical working environment, then a year coal consumption is: 0.75 * 24 * 300 * 120 ÷, 5 ÷ 10000=12.96 (ten thousand yuan)
Year the expense of economizing on coal: 25.92 ten thousand yuan-12.96 ten thousand yuan=12.96 ten thousand yuan
2, circulating water consumption: refining magnesium vacuum system per hour needs 100 tons of quantity of circulating water, if the volatilization waste water yield is calculated by 10%, water per ton is by 0.3 yuan of calculating, and then a year waste water resource expense is: ten thousand yuan of 100 * 24 * 300 * 0.3 * 10% ÷ 10000=2.16.
The vacuum system of the present invention water yield of per hour need lowering the temperature is 4 tons, the volatilization waste water yield is calculated by 10%, then a year waste water resource is: 4 * 24 * 300 * 0.3 * 10% ÷ 1000=0.0864 (ten thousand yuan), then year saving water rate: 2.16-0.0864=2.0736 (ten thousand yuan)
3, can reduce 100,000 yuan of equipment investments such as cooling tower, pond, circulating water cooling system.
4, power consumption: refining magnesium vacuum system is power consumption 30KW per hour, and every degree electricity is pressed 0.6 yuan of calculating, then year power consumption expense: 30 * 24 * 300 * 0.6 ÷ 10000=12.96 (ten thousand yuan).
And the power consumption of vacuum system of the present invention is 1/2 of refining magnesium, promptly 6.48 ten thousand yuan.
Generally building a minimum scale of magnesium factory is 5000 tons, needs the same sampling device of 5 covers.
By above as can be seen if in tame magnesium factory refining magnesium vacuum system, adopt technical solution of the present invention can reduce 500,000 yuan of equipment investments, the energy that can save every year and resource expense (12.96+2.0736+6.48) * 5=107.568 (ten thousand yuan).
Below in conjunction with drawings and Examples the present invention is described in further detail.
Fig. 1 is an energy-saving steam jet vacuum equipment schematic representation of the present invention.
The present invention as shown in Figure 1, comprise vaporizer 1, heat exchanger 2, radiator 3, steam distributor 4, steam jet ejector 5,6,7,8,9, at steam jet ejector 5,6,7,8, three condensers 10 are housed respectively between 9,11,12, water pot 13 and water pump 14, vaporizer 1 links by pipeline 15 and steam distributor 4, steam distributor 4 is by pipeline 30,31,17,18,32 respectively with steam jet ejector 5,6,7,8,9 link, steam jet ejector 6,7,8 by pipeline 33,19,20 respectively with condenser 10,11,12 link, when condenser 10,11,12 adopt when uprightly installing, its waste pipe 36,21,22 can directly enter respectively in the water pot 13, when condenser 10,11,12 when adopting horizontal installation, waste pipe 21,22 adopt U-shaped and condenser two U-shaped waste pipes 21, the end that 22 series connection backs import waste pipe 36 enters in the water pot 13, liquid in the water pot 13 is extracted in the heat exchanger 2 by water pump 14, heat exchanger 2 links by pipeline 16 with vaporizer 1, vaporizer 1 links by pipeline 23 and heat exchanger 2, heat exchanger 2 links by pipeline 24 and radiator 3, concentration is housed is 50%-60% lithium bromide water solution 35 in vaporizer 1.
The working principle of this vacuum device and process:
During work, lithium bromide water solution is heated to uniform temperature in vaporizer 1 after, because the evaporation of water temperature is more much lower than the evaporating temperature of lithium bromide, the water generation superheated vapor of constantly vaporizing at high temperature, this part superheated vapor is admitted in the steam distributor 4 as the working steam use and by pipeline 30 by pipeline 15,31,17,18,32 deliver to steam jet ejector 5,6,7,8, in 9, bromize lithium concentrated solution behind pervaporation is delivered to by pipeline 23 earlier and is sent into by pipeline 24 after the heat exchange cooling in the heat exchanger 2 that reducing temperature twice approaches ambient temperature as the vapor absorption condensing agent in the radiator 3 again, by pipeline 34,25,26 are admitted to condenser 10,11, in 12, lithium-bromide solution with its strong low temperature moisture absorption at condenser 10,11, a large amount of steam jet ejectors 6 that suck in 12,7, after water vapor in 8 reduces its concentration, from U-shaped waste pipe 11,12 import waste pipe 36 enters in the water pot 13,2 heat absorptions heat up after pipeline 16 enters vaporizer 1 evaporation through water pump 14 pressurization back injection heat exchangers then, so circulation, vacuum system just can obtain working steam and condensation absorbing agent endlessly, thereby realizes the enclose inside circulation.
Claims (3)
1, a kind of energy-saving steam jet vacuum equipment, it is characterized in that, this device comprises vaporizer (1), heat exchanger (2), radiator (3), steam distributor (4), two above steam jet ejectors (5,6,7,8,9), water pot (13), more than one condenser (10,11,12) and water pump (14), vaporizer (1) links by pipeline (15) and steam distributor (4), steam distributor (4) is by pipeline (31,17,18) respectively with steam jet ejector (6,7,8) link, steam jet ejector (6,7,8) by pipeline (33,19,20) with condenser (10,11, linking 12), condenser (10,11,12) waste pipe (36,21,22) enter in the water pot (13), liquid in the water pot (13) is extracted in the heat exchanger (2) by water pump (14), heat exchanger (2) links by pipeline (23) with vaporizer (1), vaporizer (1) links by pipeline (16) and heat exchanger (2), heat exchanger (2) links by pipeline (24) and radiator (3), radiator (3) is by pipeline (25,26) with condenser (11,12) link, vaporizer is equipped with lithium bromide water solution in (1).
2, energy-saving steam jet vacuum equipment according to claim 1 is characterized in that, the end of above-mentioned waste pipe (21,22) remittance waste pipe (36) for the U-shaped waste pipe and after connecting mutually enters in the water pot (13).
3, energy-saving steam jet vacuum equipment according to claim 1 and 2 is characterized in that, above-mentioned lithium bromide water solution concentration is 50-60%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001261207A CN1152191C (en) | 2000-08-21 | 2000-08-21 | Energy-saving steam jet vacuum equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001261207A CN1152191C (en) | 2000-08-21 | 2000-08-21 | Energy-saving steam jet vacuum equipment |
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| Publication Number | Publication Date |
|---|---|
| CN1338577A true CN1338577A (en) | 2002-03-06 |
| CN1152191C CN1152191C (en) | 2004-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001261207A Expired - Fee Related CN1152191C (en) | 2000-08-21 | 2000-08-21 | Energy-saving steam jet vacuum equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644627A (en) * | 2012-04-26 | 2012-08-22 | 南京佳业检测工程有限公司 | Steam injection pump |
| CN103195519A (en) * | 2013-03-20 | 2013-07-10 | 天津大学 | ORC (Organic Rankine cycle) power generation system based on series connection of multistage evaporators and working medium pumps |
| CN103195518A (en) * | 2013-03-20 | 2013-07-10 | 天津大学 | ORC (organic Rankine cycle) power generation system based on series connection of multistage evaporators |
| CN109280004A (en) * | 2018-11-30 | 2019-01-29 | 黄冈师范学院 | The method, apparatus and application of nitrogen oxide catalytic air oxidation glyoxal glyoxalic acid |
-
2000
- 2000-08-21 CN CNB001261207A patent/CN1152191C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102644627A (en) * | 2012-04-26 | 2012-08-22 | 南京佳业检测工程有限公司 | Steam injection pump |
| CN103195519A (en) * | 2013-03-20 | 2013-07-10 | 天津大学 | ORC (Organic Rankine cycle) power generation system based on series connection of multistage evaporators and working medium pumps |
| CN103195518A (en) * | 2013-03-20 | 2013-07-10 | 天津大学 | ORC (organic Rankine cycle) power generation system based on series connection of multistage evaporators |
| CN103195519B (en) * | 2013-03-20 | 2016-06-29 | 天津大学 | Based on the organic Rankine cycle power generation system that multi-stage evaporator is connected with working medium pump |
| CN109280004A (en) * | 2018-11-30 | 2019-01-29 | 黄冈师范学院 | The method, apparatus and application of nitrogen oxide catalytic air oxidation glyoxal glyoxalic acid |
| CN109280004B (en) * | 2018-11-30 | 2023-08-22 | 黄冈师范学院 | Method, device and application for preparing glyoxalic acid by oxidizing glyoxal through nitrogen oxide catalysis air |
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| Publication number | Publication date |
|---|---|
| CN1152191C (en) | 2004-06-02 |
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