CN201272697Y - Deoxidization apparatus for water used in generator set - Google Patents
Deoxidization apparatus for water used in generator set Download PDFInfo
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- CN201272697Y CN201272697Y CNU2008201885233U CN200820188523U CN201272697Y CN 201272697 Y CN201272697 Y CN 201272697Y CN U2008201885233 U CNU2008201885233 U CN U2008201885233U CN 200820188523 U CN200820188523 U CN 200820188523U CN 201272697 Y CN201272697 Y CN 201272697Y
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- water
- pressure rotating
- stopping valve
- film deaerator
- deaerator
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Abstract
The utility model discloses a deaerating device for water used by electric generating set, which comprises a high-pressure rotating film deaerator, a low-pressure rotating film deaerator and an ejection mixing heater, wherein the high-pressure rotating film deaerator is connected with a stop valve through a check valve 6 and a check valve 4 sequentially, the stop valve is connected with the ejection mixing heater, a water inlet and a water outlet of the ejection mixing heater are respectively connected with a check valve 1 and a check valve 2 through pipes, and the check valve 2 is connected with a water inlet of the low-pressure rotating film deareator via a pipe. Cool water from a slag cooler enters the ejection mixing heater to generate vacuum, after vapor containing oxygen of the high-pressure rotating film deaerator device is pumped and mixed, water-vapor mixture is discharged into a water chamber of the low-pressure rotating film deaerator for secondary deoxidization, then deaerating effect is increased, oxygen content can be reduced and kept at 0 ug/L, not only vapor exhaust can be reduced, working medium and heat energy are recovered, but gas emission and environmental pollution can be decreased.
Description
Technical field
The utility model relates to deoxygenator, particularly relates to the generating set running water deoxidizing device that is provided with rotating-film deaerator and jet heater.
Background technology
Rotating-film deaerator is a kind of novel heating power formula deoxygenator.Rotating-film deaerator divides air suspended type and pressure type.In general, air suspended type feedwater oxygen level should be less than 15 ц g/L, and pressure type deaerator feedwater oxygen level should be less than 7 ц g/L.Rotating-film deaerator is the first-elected product that uses of each high-power station of present stage, and rotating-film deaerator has the oxygen removal efficiency height, feedwater oxygen level qualification rate 100%; Stable, shockproof, be applicable to that negative pressure starts, sliding pressure operation, reduced or remitted startup and operating artificial numerous and diverse adjusting operation; Conformability is good, water quality, water temperature are required outside the advantage such as not harsh, but and short-term exceed power about 50% operations; Advantages such as displacement is little, and power consumption is few.
A kind of rotating-film deaerator is disclosed as Chinese utility model patent 200520076632.2, comprise oxygen-removing tower and bottom water tank, the oxygen-removing tower top is provided with vapor pipe, be provided with steam separator in the deoxygenation tower body from top to bottom, revolve the film device, height adds drain pipe, water drenching device, filler stratum reticulare and air chamber, steam separator and vapor pipe join, add the erosion control spraying gun is housed between the drain pipe revolving film device and height, the erosion control spraying gun is made by the coiling of stainless steel flat filament net.Revolve the film device and comprise hydroecium, steam chest and rotation membrane pipe, the upper and lower of rotation membrane pipe all is provided with the hole of advancing of several helical pattern, its lead angle is 15 °～20 °, and the hole of advancing on the rotation membrane pipe is an inclined hole, the 67 °≤α of angle between the radius of inclined hole medullary ray and inside pipe wall joining＜72 °.This deoxygenator can be used for modes such as level pressure, sliding pressure and moves, and is applicable to all kinds of power plant, heat power plant and Industrial Boiler.But this deoxygenator is the same with all high pressure rotating-film deaerators, all wants steam discharge when normally moving, and not only causes working medium and heat to run off, and increases the gas purging amount, increases environmental pollution, influences corporate image.
China's utility model patent 98217318.0 discloses a kind of hot water jet well heater, the middle part of its housing is necking down, two ends are respectively to the conical adapter bonnet of external diffusion, the conical tube of adapter bonnet one end opening is a diffuser tube, the other end conical tube is connecting the mixing section cylindraceous of end sealing, mixing section is installed with the blast tube that has the high-temperature-hot-water water inlet pipe, and setting device is installed in blast tube, at the mixing section sidepiece low temperature return water pipe is being set.Nozzle ejection high-temperature-hot-water mixes the drainage of low temperature backwater, improves heating temperature and pressure, has saved interchanger and water pump, and saves energy has been simplified equipment, reduces investment outlay, and has reduced running cost.
But how jet heater reclaims working medium and heat in conjunction with rotating-film deaerator, reduces the technology of gas purging amount and does not appear in the newspapers as yet.
The utility model content
The purpose of this utility model is to overcome the shortcoming that existing rotating-film deaerator exists, and develops a kind of recyclable working medium and heat, reduces the generating set running water deoxidizing device of gas purging amount.
The purpose of this utility model is achieved through the following technical solutions:
A kind of generating set running water deoxidizing device comprises the high pressure rotating-film deaerator, and this device also comprises low pressure rotating-film deaerator and jet model mixing heating unit; The high pressure rotating-film deaerator by stopping valve successively six, stopping valve four be connected with vacuum breaker, vacuum breaker is connected with jet model mixing heating unit, the water-in of jet model mixing heating unit is connected with two of one of stopping valve and stopping valve by pipeline respectively with water outlet, and two of stopping valve is connected by the water-in of pipeline with the low pressure rotating-film deaerator.
For further realizing the purpose of this utility model, two of one of described stopping valve and stopping valve also is connected with three two ends of stopping valve respectively by pipeline.
Connect successively on the pipeline of described high pressure rotating-film deaerator venting port stopping valve six and stopping valve five.
The utility model compared with prior art has following advantage and beneficial effect:
1, high pressure rotating-film deaerator deaerating effect and stability are obviously improved.The deoxygenation of high pressure rotating-film deaerator is because of being subjected to the water yield, temperature, admission pressure temperature and instrument are adjusted multiple factor affecting such as door slow movement, its water oxygen level often fluctuates, oxygen level is generally 25ug/L-10ug/L, the utility model is used for the cold water of about 50 ℃ in self cooling slag machine and enters in the jet model mixing heating unit, produce vacuum, the steam that has oxygen from the high pressure rotating-film deaerator is aspirated through jet model mixing heating unit, discharge from low pressure deoxygenator emptying valve, the part of oxygen of can not arranging and incoagulable gas (a spot of water vapor, carbon dioxide, rare gas element etc.) and gas-vapor mix arrange together into that low pressure rotating-film deaerator hydroecium carries out the secondary deoxygenation, high pressure rotating-film deaerator deaerating effect and stability are obviously improved, and oxygen level can be reduced to 0ug/L.
2, recovered steam and heat have reduced the throttle flow of low pressure rotating-film deaerator.
The utility model is used for about 50 ℃ cold water of self cooling slag machine and enters in the jet model mixing heating unit, and produces vacuum, is used to from the steam of high pressure rotating-film deaerator cold slag machine backwater is heated to about 80 ℃ realization recovered steam and heat.
3, reduced the influence of discharged steam to atmospheric environment.
The utility model is to be used for about 50 ℃ cold water of self cooling slag machine to enter in the jet model mixing heating unit, and generation vacuum, a big chunk is aspirated through jet model mixing heating unit from the steam that the high pressure rotating-film deaerator has oxygen, discharge from low pressure deoxygenator emptying valve, part of oxygen of can not arranging and incoagulable gas and cold slag machine backwater mixture are arranged into low pressure rotating-film deaerator hydroecium together, be mixed together with de-mineralized water and the next water of drainage pump, and and the water that comes of de-mineralized water and drainage pump carry out heat exchange, heat.The water that mixes carries out the secondary deoxygenation under low pressure rotating-film deaerator internal admission heating, discharge from low pressure rotating-film deaerator emptying valve, the temperature of low pressure rotating-film deaerator water in 93～99 ℃ of low pressure rotating-film deaerators does not seethe with excitement, keep the low pressure deoxygenator only to discharge oxygen and incoagulable gas and do not carry steam, thereby reduced the influence of discharged steam atmospheric environment.
Description of drawings
Fig. 1 is the utility model generating set running water deoxidizing device structural representation.
Embodiment
Below in conjunction with drawings and embodiments the utility model is further described, but embodiment of the present utility model is not limited thereto.
As shown in Figure 1, generating set with running water deoxidizing device comprise high pressure rotating-film deaerator 8, low pressure rotating-film deaerator 9, jet model mixing heating unit 10, vacuum breaker 7, stopping valve 44, stopping valve 33, stopping valve 22,55 and stopping valve of one of stopping valve 1, stopping valve 66; 66 of stopping valve is connected on the pipeline that is connected high pressure rotating-film deaerator 8 venting ports successively with 55 of stopping valve, 44 of stopping valve is connected with vacuum breaker 7,4455 pipe connection of stopping valve by pipeline and 66 and the stopping valve that are connected stopping valve, vacuum breaker 7 is connected with jet model mixing heating unit 10, the water-in of jet model mixing heating unit 10 is connected with 22 of one of stopping valve 1 and stopping valve by pipeline respectively with water outlet, and 22 of stopping valve is connected by the water-in of pipeline with low pressure rotating-film deaerator 9.22 of one of stopping valve 1 and stopping valve also is connected with 33 two ends of stopping valve respectively by pipeline.
The YGXC-280-70 type rotating-film deaerator that high pressure rotating-film deaerator 8 selects for use Panshi Vessels Manufacture Co., Ltd., Qingdao City to produce.The YXC-280-70 type rotating-film deaerator that low pressure rotating-film deaerator 9 selects for use Panshi Vessels Manufacture Co., Ltd., Qingdao City to produce.
Jet model mixing heating unit 10 can be selected the jet model mixing heating unit of the XTJ type of Xi'an Xin Te science and technology Engineering Co., Ltd production for use.
Vacuum breaker 7 can be selected H44-25P type vacuum breaker for use.Vacuum breaker 7 is used to prevent that the water that comes of cold slag machine from pouring into into high pressure rotating-film deaerator 8, causes the gas exhaust duct vibration of high pressure rotating-film deaerator 8.
Stopping valve 44, stopping valve 33, stopping valve 22,66 all available J41H-25, the PN2.5 of 55 and stopping valve of one of stopping valve 1, stopping valve or the stopping valve of DN50 model.Before low pressure rotating-film deaerator 9 starts, 66 of stopping valve is all to open, 55 parts of stopping valve are opened the free air delivery that is used for controlling high pressure rotating-film deaerator 8, exhaust is discharged in the atmosphere, and what the high pressure rotating-film deaerator was discharged is oxygen and carbonic acid gas in the oiler feed, rare gas element etc., in the high pressure rotating-film deaerator 8 air pressure is arranged, if without 55 controls of stopping valve, steam discharge will be very big, the steam discharge loss is also very big.Stopping valve 44, one of 22 and stopping valve of stopping valve 1 all close, cold slag machine backwater enters low pressure rotating-film deaerator 9 by stopping valve 3, the unimpeded situation of test cold-rolling mill backwater; After jet model mixing heating unit 10 operation, in case jet model mixing heating unit 10 work are undesired, when needing maintenance, can keep cold slag machine backwater unimpeded, reduce the unnecessary operation such as cold slag machine that stops.
During application, at first close stopping valve 33, stopping valve 55, open stopping valve 22, one of stopping valve 1 and stopping valve 44.Steam from high pressure rotating-film deaerator 8 (comprises water vapor, oxygen, carbonic acid gas and rare gas element etc.)) through 66 of stopping valve, 44 of stopping valve, vacuum breaker 7 enters jet model mixing heating unit 10, the cold water that self cooling simultaneously slag machine is about 50 ℃ enters in the jet model mixing heating unit 10, make jet model mixing heating unit 10 produce vacuum, the steam that has oxygen from the high pressure rotating-film deaerator aspirates through jet model mixing heating unit, discharge the part of oxygen of can not arranging from low pressure deoxygenator emptying valve, a spot of water vapor, carbon dioxide and rare gas element etc. and water are arranged into together, and the hydroecium of low pressure rotating-film deaerator 9 carries out the secondary deoxygenation.Make high pressure rotating-film deaerator oxygen level by 15Ug/L, drop to 0Ug/L, thereby it is qualified that the high pressure rotating-film deaerator is ensured, minimizing contains oxygen to Corrosion of Pipeline, helps the safe and stable operation of entire power plant; Jet model mixing heating unit 10 is used to from the steam of high pressure rotating-film deaerator 8 cold slag machine backwater be heated simultaneously.Be used to cold slag machine backwater is heated to about 80 ℃, realize recovered steam and heat from the steam of high pressure rotating-film deaerator.And make low pressure rotating-film deaerator temperature raise about 5 ℃, the water temp of low pressure rotating-film deaerator remains in 93～99 ℃, water does not seethe with excitement in the low pressure rotating-film deaerator, keep the low pressure deoxygenator only to discharge oxygen and incoagulable gas and do not carry steam, thereby reduced the influence of discharged steam atmospheric environment.
Above-mentioned generating set water deaerating type of cycles is applied to certain 240T/H of company High Temperature High Pressure fluidized-bed combustion boiler water feeding system.The annual steam of getting rid of of this factory reaches more than 10,000 ton, nearly 400,000 yuan of loss.Use this generating set running water deoxidizing device, can recoup capital outlay the economic benefit highly significant in 0.3 year.And the application of motor group with running water deoxidizing device after, can greatly reduce steam and get rid of, reclaim working medium and heat, reduce the gas purging amount, reduce environmental pollution, improve company's environmental image.
Claims (3)
1, a kind of generating set running water deoxidizing device comprises the high pressure rotating-film deaerator, it is characterized in that this device also comprises low pressure rotating-film deaerator and jet model mixing heating unit; The high pressure rotating-film deaerator by stopping valve successively six, stopping valve four be connected with vacuum breaker, vacuum breaker is connected with jet model mixing heating unit, the water-in of jet model mixing heating unit is connected with two of one of stopping valve and stopping valve by pipeline respectively with water outlet, and two of stopping valve is connected by the water-in of pipeline with the low pressure rotating-film deaerator.
2, generating set running water deoxidizing device according to claim 1 is characterized in that: two of one of described stopping valve and stopping valve also is connected with three two ends of stopping valve respectively by pipeline.
3, generating set water deaerating type of cycles according to claim 1 is characterized in that: connect successively on the pipeline of described high pressure rotating-film deaerator venting port stopping valve six and stopping valve five.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201885233U CN201272697Y (en) | 2008-08-13 | 2008-08-13 | Deoxidization apparatus for water used in generator set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201885233U CN201272697Y (en) | 2008-08-13 | 2008-08-13 | Deoxidization apparatus for water used in generator set |
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| Publication Number | Publication Date |
|---|---|
| CN201272697Y true CN201272697Y (en) | 2009-07-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201885233U Expired - Fee Related CN201272697Y (en) | 2008-08-13 | 2008-08-13 | Deoxidization apparatus for water used in generator set |
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| CN (1) | CN201272697Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386636A (en) * | 2014-10-20 | 2015-03-04 | 中山弘博企业管理咨询有限公司 | Weighing-type quantitative filling machine |
| CN104528858A (en) * | 2014-12-23 | 2015-04-22 | 哈尔滨锅炉厂有限责任公司 | Vacuum type deaerator and deaerating method |
| CN110726133A (en) * | 2019-09-26 | 2020-01-24 | 首钢京唐钢铁联合有限责任公司 | Method and device for reducing dissolved oxygen in water supply of CCPP (combined cycle process control) waste heat boiler |
| CN112610947A (en) * | 2020-12-17 | 2021-04-06 | 无锡惠联热电有限公司 | Secondary deoxygenation process for cogeneration water supply system |
-
2008
- 2008-08-13 CN CNU2008201885233U patent/CN201272697Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104386636A (en) * | 2014-10-20 | 2015-03-04 | 中山弘博企业管理咨询有限公司 | Weighing-type quantitative filling machine |
| CN104528858A (en) * | 2014-12-23 | 2015-04-22 | 哈尔滨锅炉厂有限责任公司 | Vacuum type deaerator and deaerating method |
| CN104528858B (en) * | 2014-12-23 | 2017-03-08 | 哈尔滨锅炉厂有限责任公司 | Vacuum type oxygen-eliminating device and deoxidation method |
| CN110726133A (en) * | 2019-09-26 | 2020-01-24 | 首钢京唐钢铁联合有限责任公司 | Method and device for reducing dissolved oxygen in water supply of CCPP (combined cycle process control) waste heat boiler |
| CN112610947A (en) * | 2020-12-17 | 2021-04-06 | 无锡惠联热电有限公司 | Secondary deoxygenation process for cogeneration water supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090715 Termination date: 20090914 |