CN202371743U - Blast dehumidifying heating steam boiler device with deaerator - Google Patents
Blast dehumidifying heating steam boiler device with deaerator Download PDFInfo
- Publication number
- CN202371743U CN202371743U CN2011205272273U CN201120527227U CN202371743U CN 202371743 U CN202371743 U CN 202371743U CN 2011205272273 U CN2011205272273 U CN 2011205272273U CN 201120527227 U CN201120527227 U CN 201120527227U CN 202371743 U CN202371743 U CN 202371743U
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- Prior art keywords
- air
- lithium bromide
- outlet
- water
- bromide refrigerator
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model relates to a blast dehumidifying heating steam boiler device with a deaerator. Natural air enters a surface cooler and a demister after passing through an air filter, then is sequentially fed into an air heater and an air preheater through an air blower, and finally enters a boiler; a dead steam outlet of the deaerator is connected with a steam inlet of a lithium bromide refrigerator, and a steam condensate outlet of the lithium bromide refrigerator is connected into a desalting water tank; a chilled water outlet of the lithium bromide refrigerator is connected with the surface cooler and a cooler water inlet of the demister, and the surface cooler and a cooler water outlet of the demister are connected with a chilled water inlet of the lithium bromide refrigerator; and a cooling water outlet of the lithium bromide refrigerator is connected with a heater water inlet of the air heater, a heater water outlet of the air heater is connected with a water feed pipe of a cooling tower, and a sewer pipe of the cooling tower is connected with a cooling water inlet of the lithium bromide refrigerator. According to the device disclosed by the utility model, the power consumption of the air blower can be reduced, heat loss due to exhaust gas is reduced, deoxygenization dead steam is utilized, and the heat efficiency of the device is improved.
Description
Technical field
The utility model relates to a kind of thermal device, particularly a kind of air blast dehumidifying heating steam boiler plant with oxygen-eliminating device.
Background technology
In boiler and steam unit, O
2And CO
2Existence meeting corroding metal and produce the oxide salt crust, and incoagulability gas and oxide salt dirt deposition worsen heat-transfer effect.Therefore, removing the oxygen and other incoagulable gas that are dissolved in the boiler replenishing water as far as possible, is protection thermal device equipment uncorroded basic skills, also is to guarantee heat power equipment safety, efficiently move requisite means.Thermal deaerator is one of common equipment; Its cardinal principle is according to Henry's law and Dalton's law, uses steam with the saturation temperature of boiler replenishing water transient heating to a deoxygenation operating pressure correspondence, and the pressure that makes steam in the oxygen-eliminating device deoxygenation head is total head; And the partial pressure of air becomes zero; The solubility of air in water also becomes zero, and air is all overflowed from moisturizing, has also removed other incoagulable gas in the time of deoxygenation.In the heat energy that steam discharged that consumes in the oxygen removal process, quite a few is discharged into atmosphere through oxygen-eliminating device exhaust steam floss hole, and the oxygen-eliminating device operating pressure is high more; The deoxygenation steam pressure is also high more; The exhaust steam discharge capacity is big more, has both caused very big thermal waste, again contaminated environment.
Natural air is made up of dry air and steam, promptly contains moisture in the natural air, and especially humidity high season, water capacity can reach 20g/Nm
3More than, than expanding surplus in the of 1600 in liquid lower volume times, so the moisture in the natural air has occupied certain volume to water under gaseous state.The relative humidity of air reaches at 100% o'clock, and airborne moisture reaches capacity, and the air themperature of this moment is called dew-point temperature, and when air themperature dropped to dew-point temperature, airborne water vapour will condense into dew.When fuel burns in boiler, need to consume a large amount of oxygen, in boiler, blow by air blast; Air blast is when sending into oxygen; The steam that also will not participate in burning is sent into boiler, and steam becomes the high-temperature flue gas discharging after absorbing heat, has wasted a large amount of heat energy; In addition, because the existence of steam, air blast need be sent into more air to satisfy the needs of burning, has both increased power consumption, has increased heat loss due to exhaust gas again.
According to the second law of thermodynamics, heat can not spontaneously be transferred to high temp objects from cryogenic object, realize this process, must consume certain merit, just can make the temperature of cryogenic object lower, reaches the purpose of refrigeration.Lithium-bromide absorption-type refrigerating machine be a kind of be the refrigeration machine of power with the thermal source, mainly form by generator, condenser, evaporimeter, absorber four major parts and equipment such as heat exchanger and solution pump.Lithium bromide refrigerator inside is vacuum environment; For example the shell side of evaporimeter maintenance absolute pressure is 6.54mmHg; Water is 5 ℃ of boilings, and the water as refrigerant spirt is gone will explosive evaporation, when the tube side of the higher chilled water of temperature (for example the being 12 ℃) evaporimeter of flowing through; The water as refrigerant that sprays so outside copper pipe will and evaporate from copper pipe absorption heat, and the chilled water temperature in the copper pipe has just reduced (12 ℃ → 7 ℃); After the water as refrigerant evaporation; The pressure of evaporimeter will raise, and in order to keep the pressure very low (6.54mmHg) in the evaporimeter, absorber absorbs water vapour through the spray bromize lithium concentrated solution; Lithium-bromide solution behind the absorption water vapour becomes weak solution, and concentration reduces can not absorb steam again; Through generator weak solution is concentrated, it is thermal source that generator adopts steam usually, and weak solution is heated again, make the water evaporates in the weak solution after solution concentrated, keep absorbability; The isolated steam of generator is cooled off by cooling water in condenser indirectly, and the water as refrigerant of liquefy gets into the evaporimeter spray again, so moves in endless cycles.Therefore the external pipeline of lithium bromide refrigerator has chilled water import, chilled water outlet; Cooling water inlet, coolant outlet; Steam inlet, steam condensate (SC) outlet.
The utility model content
The purpose of the utility model is; Overcome the problem that exists in the prior art, a kind of air blast dehumidifying heating steam boiler plant with oxygen-eliminating device is provided, can improve the efficiency of oxygen supply of air blast; Reduce power consumption; Reduce heat loss due to exhaust gas, the exhaust steam to oxygen-eliminating device simultaneously utilizes, and improves the thermal efficiency of whole device.
For solving above technical problem; The air blast dehumidifying heating steam boiler plant of the band oxygen-eliminating device that the utility model provided; Comprise that boiler reaches and supporting air blast, air-introduced machine, sweet-water tank, small pump, oxygen-eliminating device and the feed pump of boiler; Small pump is sent to the water inlet of oxygen-eliminating device with the demineralized water in the sweet-water tank, and the water outlet of oxygen-eliminating device is delivered to boiler through feed pump, also comprises air cleaner, surface-cooler and demister, air heater, air preheater, lithium bromide refrigerator and cooling tower; Natural air gets into surface-cooler and demister after air cleaner filters; Get into air heater through air blast again, the outlet of air heater inserts air preheater, and the outlet of air preheater inserts the air inlet duct of boiler; The exhaust steam outlet of said oxygen-eliminating device is connected with the steam inlet of said lithium bromide refrigerator, and the steam condensate (SC) outlet of said lithium bromide refrigerator inserts said sweet-water tank; The chilled water outlet of said lithium bromide refrigerator is connected with the cooler water inlet of said surface-cooler and demister, and the cooler delivery port of said surface-cooler and demister is connected with the chilled water import of said lithium bromide refrigerator; The coolant outlet of said lithium bromide refrigerator is connected with the heater water inlet of said air heater; The heater delivery port of said air heater is connected with the cooling tower upper hose of said cooling tower, and the cooling tower outlet pipe of said cooling tower is connected with the cooling water inlet of said lithium bromide refrigerator.
With respect to prior art; The utility model has been obtained following beneficial effect: (1) utilizes the exhaust steam of oxygen-eliminating device discharging to drive lithium bromide refrigerator and produces chilled water; Effectively utilized the waste heat of exhaust steam; The steam condensate (SC) that comes out from lithium bromide refrigerator inserts sweet-water tank, has both reclaimed demineralized water itself, has utilized the temperature of the waste heat raising demineralized water of steam condensate (SC) again.(2) surface-cooler and demister are united two into one by surface-cooler, demister and form; Cryogenic freezing water gets into surface-cooler; Carry out indirect heat exchange with the air of the surface-cooler of flowing through, the temperature of air is cooled to below the dew-point temperature, airborne steam condenses into the globule; And flowing into automatic rhone along the surface cooler wall, the remaining water smoke of air quenched generation is then caught by demister and is got into automatic rhone; The cooled dry air that dehumidifies gets into the inlet scoop of air blast, is sent to air heater by air blast, and cooled drying-air temperature reduces, and density increases, and blower efficiency improves, and the unit air volume power consumption reduces.(3) air is through after drying, and moisture descends significantly, and oxygen content increases, and has reduced air output, has also reduced the power consumption of air blast.(4) steam is not only participated in burning, and also will absorb heat becomes the high-temperature flue gas discharging, and air is through after drying, and the water vapour amount that after the boiler heating, is discharged in the atmosphere descends, and heat loss due to exhaust gas descends significantly.(5) in the lithium bromide refrigerator; The caloric requirement that heat that the steam condensation is discharged and chilled water cooling are discharged is taken away by cooling water; For cooling water can be recycled; Must use cooling tower that the cooling water after heating up is lowered the temperature, the cooling water after the cooling gets in the lithium bromide refrigerator again, and the heat that cooling water is taken away is relevant with the flow of cooling water and the temperature difference; The high-temperature cooling water that the utility model will come out from lithium bromide refrigerator is at first delivered to air heater, and in air heater, high-temperature cooling water and cold air carry out indirect heat exchange; The temperature of cold air is able to promote, and temperature descends after the high-temperature cooling water release heat, gets into the cooling tower cooling again; Cooling water after the cooling tower cooling flows out from the cooling tower outlet pipe; Again get into the cooling water inlet of lithium bromide refrigerator, air heater had both reclaimed the waste heat of high-temperature cooling water, and the cold air temperature is got a promotion; Alleviated the load of cooling tower again; Strengthen the cooling water outlet and inlet temperature difference of lithium bromide refrigerator, reduced the power consumption of blower fan of cooling tower, can alleviate the power consumption of cooling water circulating pump again.(6) dry air that comes out from air heater gets into air preheater; In air preheater; Utilize the high-temperature flue gas and the dry air of boiler emission to carry out indirect heat exchange, make dry air become hot-air and get into the boiler air inlet duct, improved the temperature of burner hearth; And make the burning of fuel more abundant, reclaimed the heat in the high-temperature flue gas on the other hand.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation, accompanying drawing only provides reference and explanation usefulness, and is non-in order to restriction the utility model.
Fig. 1 is the sketch map of the air blast dehumidifying heating steam boiler plant of the utility model band oxygen-eliminating device.
Among the figure: 1 natural air; 2 air cleaners; 3 surface-coolers and demister; 3a cooler water inlet; 3b cooler delivery port; The automatic rhone of 3c; 4 air blasts; 5 air heaters; 5a dry air inlet; The outlet of 5a ' dry air; 5b heater water inlet; 5b ' heater delivery port; 6 air preheaters; The 6a inlet of cold air; 6a ' hot air outlet; The 6b smoke inlet; 6b ' exhanst gas outlet; 7 boilers; 8 air-introduced machines; 9 chimneys; 10 lithium bromide refrigerators; The import of 10a chilled water; 10a ' chilled water outlet; The 10b cooling water inlet; 10b ' coolant outlet; The 10c steam inlet; The outlet of 10c ' steam condensate (SC); 11 cooling towers; 11a cooling tower upper hose; 11a ' cooling tower outlet pipe; 12 sweet-water tanks; 13 small pumps; 14 oxygen-eliminating devices; 14a exhaust steam outlet; The outlet of 14b deaerated water; 15 feed pumps.
The specific embodiment
As shown in Figure 1, the air blast dehumidifying heating steam boiler plant of the utility model band oxygen-eliminating device comprises air cleaner 2, surface-cooler and demister 3, air blast 4, air heater 5, air preheater 6, boiler 7, air-introduced machine 8, lithium bromide refrigerator 10, cooling tower 11, sweet-water tank 12, small pump 13, oxygen-eliminating device 14, feed pump 15.
Natural air 1 gets into the inlet of surface-cooler and demister 3 after air cleaner 2 filters; The outlet of surface-cooler and demister 3 inserts the inlet scoop of air blast 4; The air outlet of air blast 4 inserts the dry air inlet 5a of air heater 5; The dry air outlet 5a ' of air heater inserts the inlet of cold air 6a of air preheater 6, and the hot air outlet 6a ' of air preheater 6 inserts the air inlet duct of boiler 7.
The chilled water outlet 10a ' of lithium bromide refrigerator 10 is connected with the cooler water inlet 3a of surface-cooler and demister 3, and the cooler delivery port 3b of surface-cooler and demister 3 is connected with the chilled water import 10a of lithium bromide refrigerator.
The coolant outlet 10b ' of lithium bromide refrigerator is connected with the heater water inlet 5b of air heater 5; The heater delivery port 5b ' of air heater 5 is connected with the cooling tower upper hose 11a of cooling tower 11, and the cooling tower outlet pipe 11a ' of cooling tower 11 is connected with the cooling water inlet 10b of lithium bromide refrigerator.
In the work; Natural air 1 gets into surface-cooler and demister 3 after air cleaner 2 filters; Surface-cooler and demister 3 are united two into one by surface-cooler, demister and form, and cryogenic freezing water gets into surface-cooler, carry out indirect heat exchange with the air of the surface-cooler of flowing through; The temperature of air is cooled to below the dew-point temperature; Airborne steam condenses into the globule, and flows into automatic rhone 3c along the surface cooler wall, and the remaining water smoke of air quenched generation is then caught by demister and also got into automatic rhone 3c; Dry air after the dehydration gets into the inlet scoop of air blast 4; Be sent to air heater 5 by air blast 4; The dry air that comes out from air heater 5 gets into air preheater 6, in air preheater 6, utilizes the high-temperature flue gas and the dry air of boiler 7 dischargings to carry out indirect heat exchange; Make dry air become hot-air and get into the boiler air inlet duct, flue gas is delivered to chimney 9 dischargings by air-introduced machine 8.
The exhaust steam of oxygen-eliminating device 14 discharging inserts the steam inlet 10c of lithium bromide refrigerator 10, becomes steam condensate (SC) after the heat release and exports 10c ' from steam condensate (SC) and discharge and flow back to sweet-water tank 12.The cryogenic freezing water (for example being 7 ℃) that flows out from the chilled water outlet 10a ' of lithium bromide refrigerator 10; Get into the cooler water inlet 3a of surface-cooler and demister 3; In surface-cooler and demister 3, become the chilled water (for example being 12 ℃) of high temperature behind the heat of absorption air; Flow out and get back to the chilled water import 10a of lithium bromide refrigerator again from cooler delivery port 3b, accomplish the chilled water circulation.The heat that heat that the steam condensation is discharged and chilled water cooling are discharged is taken away by cooling water; The high-temperature cooling water (for example being 38 ℃) that comes out from the coolant outlet 10b ' of lithium bromide refrigerator inserts the heater water inlet 5b of air heater; Flow out and get into cooling tower 11 from heater delivery port 5b ' after the heat release and cool off and become low-temperature cooling water (for example being 32 ℃) by cooling tower upper hose 11a; Flow out into the cooling water inlet 10b of lithium bromide refrigerator then from cooling tower outlet pipe 11a ', accomplish the cooling water circulation.
The above is merely the preferable possible embodiments of the utility model, non-so the limitation the utility model scope of patent protection.Except that the foregoing description, the utility model can also have other embodiments.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of the utility model requirement.
Claims (1)
1. one kind with the air blast of oxygen-eliminating device dehumidifying heating steam boiler plant; Comprise that boiler reaches and supporting air blast, air-introduced machine, sweet-water tank, small pump, oxygen-eliminating device and the feed pump of boiler; Small pump is sent to the demineralized water in the sweet-water tank water inlet of oxygen-eliminating device; The water outlet of oxygen-eliminating device is delivered to boiler through feed pump; It is characterized in that: also comprise air cleaner, surface-cooler and demister, air heater, air preheater, lithium bromide refrigerator and cooling tower, natural air gets into surface-cooler and demister after air cleaner filters, get into air heater through air blast again; The outlet of air heater inserts air preheater, and the outlet of air preheater inserts the air inlet duct of boiler; The exhaust steam outlet of said oxygen-eliminating device is connected with the steam inlet of said lithium bromide refrigerator, and the steam condensate (SC) outlet of said lithium bromide refrigerator inserts said sweet-water tank; The chilled water outlet of said lithium bromide refrigerator is connected with the cooler water inlet of said surface-cooler and demister, and the cooler delivery port of said surface-cooler and demister is connected with the chilled water import of said lithium bromide refrigerator; The coolant outlet of said lithium bromide refrigerator is connected with the heater water inlet of said air heater; The heater delivery port of said air heater is connected with the cooling tower upper hose of said cooling tower, and the cooling tower outlet pipe of said cooling tower is connected with the cooling water inlet of said lithium bromide refrigerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205272273U CN202371743U (en) | 2011-12-16 | 2011-12-16 | Blast dehumidifying heating steam boiler device with deaerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205272273U CN202371743U (en) | 2011-12-16 | 2011-12-16 | Blast dehumidifying heating steam boiler device with deaerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202371743U true CN202371743U (en) | 2012-08-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205272273U Withdrawn - After Issue CN202371743U (en) | 2011-12-16 | 2011-12-16 | Blast dehumidifying heating steam boiler device with deaerator |
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| Country | Link |
|---|---|
| CN (1) | CN202371743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425802A (en) * | 2011-12-16 | 2012-04-25 | 亿恒节能科技江苏有限公司 | Air blowing dehumidifying and heating steam boiler system with deaerator |
-
2011
- 2011-12-16 CN CN2011205272273U patent/CN202371743U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425802A (en) * | 2011-12-16 | 2012-04-25 | 亿恒节能科技江苏有限公司 | Air blowing dehumidifying and heating steam boiler system with deaerator |
| CN102425802B (en) * | 2011-12-16 | 2013-07-24 | 亿恒节能科技江苏有限公司 | Air blowing dehumidifying and heating steam boiler system with deaerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120808 Effective date of abandoning: 20130724 |
|
| RGAV | Abandon patent right to avoid regrant |