CN101280958A - Hot water manufacturing method of air heat source and exhaust steam residual heat complementary - Google Patents
Hot water manufacturing method of air heat source and exhaust steam residual heat complementary Download PDFInfo
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- CN101280958A CN101280958A CNA2008100313528A CN200810031352A CN101280958A CN 101280958 A CN101280958 A CN 101280958A CN A2008100313528 A CNA2008100313528 A CN A2008100313528A CN 200810031352 A CN200810031352 A CN 200810031352A CN 101280958 A CN101280958 A CN 101280958A
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Abstract
The invention discloses an hot water production method complementary of air heat source and steam exhaust exhaust heat, is characterized by employing an air source heat pump to heat up tap water by temperature of 8-12 DEG C; recycling steam exhaust in washhouse to reheat up the hot water from the air source heat pump by temperature of 55-70 DEG C, and feeding the hot water into a hot water reservoir for standby. The steam exhaust itself is condensed to be condensation water with temperature of about 90 DEG C approximately and is feed into the water reservoir for standby. In addition condensation water used by dry cleaning apparatus and/or wiping stain bench in the washhouse is converged and feed into the water reservoir for standby. The invention can effectively use hot water from air heat and steam exhaust waste heat in washhouses of guesthouse or hotel, which can remarkably conserve energy and reduce cost.
Description
Technical field
The present invention relates to a kind of hot water manufacturing method, the hot water manufacturing method of particularly a kind of air heat source and exhaust steam residual heat complementary.
Background technology
Hotel, hotel contour level building are the rich anies influential family of energy for building, also are that health hot water is concentrated the rich and influential family who consumes.Make the energy that health hot water consumed and account for about 30% of hotel's total energy consumption, the large-scale health hot water manufacture method of inventing a kind of efficient energy-saving is to the hotel industry energy-saving and emission-reduction, and cutting operating costs has far reaching significance.
The manufacture method of present large-scale health hot water mainly contains following several: (1) utilizes Boiler Steam centralized system fabricate-heat water; (2) fuel consumption or combustion gas utilize lithium bromide direct combustion unit to produce hot water when heating or freezing; (3) utilize dedicated hot water boiler for producing hot water; (4) utilize source, ground, water resource heat pump or air source heat pump to produce hot water etc.Prior art.
Utilizing Boiler Steam centralized system fabricate-heat water is a kind of traditional hot water manufacturing method, and its heat is mainly derived from fuel that boiler uses as mineral chemical fuel or electric energy such as coal, oil, combustion gas or electricity.Utilize lithium bromide direct combustion unit and dedicated hot water boiler (pressure-less boiler) to produce hot water and also need to consume fossil fuel or electric energy such as coal, oil, combustion gas or electricity.And all there is certain heat loss in this several method in making the process of hot water, and heat utilization efficiency is not high, generally about 75%～85%.Heat pump is made the method for hot water owing to utilized the heat in air source, the heat or the underground heat at water source, it is high a lot of that the more aforementioned several method of its heat utilization efficiency is wanted, it is generally acknowledged, after the certain electric energy of heat pump consumption, the energy of the hot water that makes is equivalent to three times of the electric energy that consumed, and the temperature of air source, water source or geothermal source is lowered simultaneously.When heat pump is made health hot water, health hot water is every only to be raised about 8 ℃ through primary heat pump, usually need by water pump, boiler and heat pump cycle more than 3 times if the health hot water temperature will be increased to 55 ℃ from 20 ℃, in order to guarantee the circulation heating of health hot water, water pump also needs to consume certain electric energy.And generally only consider the function that it is single when heat pump is used in hotel or hotel, promptly make hot water, effective utilization of low-temperature receiver when not considering it air source or the reduction of water source temperature.Usually all there is bigger laundry in larger hotel or hotel, all unified washing, oven dry in the laundry such as the sheet in guest room, quilt cover, employee's uniform, guest's clothes.Drying plant is general to be adopted and scalds machine, dryer, hand with steam as thermal source flat and scald machine etc., and steam (the being exhaust steam) pressure of discharging from drying plant is generally at 1.2～1.3kg/cm
2About, temperature can not be used for drying clothes again about 110～140 ℃, often directly enter sewer or cesspool by drain valve, causes the waste of a large amount of heat energy and high-temperature condensation water.。
Summary of the invention
Technical problem to be solved by this invention is to provide the hot water manufacturing method of a kind of air heat source and exhaust steam residual heat complementary, the utilization of realization used heat, energy-conserving and environment-protective.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
The hot water manufacturing method of a kind of air heat source and exhaust steam residual heat complementary is characterized in that, adopts air source heat pump to add hot tap-water, and the temperature of running water is raise 8～12 ℃; The exhaust steam of reclaiming again in the laundry is carried out post bake with the hot water of air source heat pump output, and it is warming up to 55～70 ℃, standby (flowing into cistern stores for future use).
Exhaust steam itself is condensed, and to flow into cistern standby for the condensed water that forms 80～95 ℃.
As improvement, with the dry cleaner in the laundry and or remove to steep the used condensed water of platform and converge the back to flow into cistern standby.Described condensed water is gone into cistern through the condensed water surface low.
As improvement, in the April～October in every year, cold air after the air source heat pump heat absorption is emitted in the laundry, purpose is that the environment temperature in the laundry is reduced, after tested, on-the-spot used input power is 18kw the air source heat pump refrigerating capacity is equivalent to the refrigerating capacity that refrigerating capacity is 20 a air-conditioning approximately.
As improvement, in annual November～March next year, the cold air of laundry is arranged to the open air by air conduit, to keep the temperature in the laundry moderate.
Beneficial effect of the present invention has:
(1) method with air source heat pump circulation manufacturing hot water changes the acyclic hot water of once making into, has stopped the hot water circulating pump of heat pump, thus can saves energy.
(2) the ingenious laundry exhaust steam residual heat that utilizes carries out post bake to the hot water of heat pump production, has effectively improved the ability that heat pump is produced hot water, has reduced hotel or hotel energy consumption;
(3) reclaim the high-temperature condensation water that exhaust steam cooling back generates, saved water resource;
(4) expanded the function of heat pump, both utilized heat pump to make hot water, the cold air that produces with its replaces refrigeration air-conditioner summer, saves energy again.
(5) hot water manufacturing method of the present invention has heat accumulation function, and the hot water that evening, low electricity price made can be stored to and use daytime.Example test factually, the hot water amount that low ebb electricity price in evening (evening, 23:00 was to 7:00 in morning next day) is produced is 25 tons, saves the about 45m of natural gas
3
Description of drawings
Fig. 1 is a hot water manufacturing method schematic diagram involved in the present invention.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Embodiment 1:
The laundry in star hotel or hotel is because clothes, sheet, the quilt cover quantity of washing are a lot, use for a long time hot wash, use vapor baking, in the general trench that directly enters in the laundry of exhaust steam after dirty hot water after the washing and the baking, make in the laundry not only humidity but also sultry of environment, to the seriously corroded of equipment, physically and mentally healthy unfavorable to the employee; Especially in summer, temperature is used air-conditioning power consumption on the one hand up to 40～50 ℃ in the laundry, on the other hand because the too big effect of humidity neither be fine.
As shown in Figure 1, air source heat pump is installed in the laundry, directly will be emitted in the laundry through the cold air after the heat pump heat absorption annual April～October, and the environment temperature in the laundry is reduced; Then arrange cold air to the open air by air conduit annual November～March next year, and simultaneously, heat pump once heats running water, and water temperature improves 8～12 ℃, produces 40 ℃ of left and right sides low-temperature water heatings (being a hot water among Fig. 1).The inventive method is again with after people's camera, the boiling hot machine of hand, the used exhaust steam of folder machine converge in the laundry, sending into the exhaust steam reclaimer (is steam-water type heat exchanger, indirect heat exchange is carried out in exhaust steam and a hot water) low-temperature water heating (about 40 ℃) that air source heat pump is produced carries out post bake, and it is warming up to more than 55 ℃, obtain secondary hot water's (as shown in fig. 1), it is standby to send into the hot water cistern again.Simultaneously, exhaust steam itself also is condensed into 90 ℃ of left and right sides high-temperature condensation waters also to go into the hot water cistern through the condensed water surface low standby.The dry cleaner of laundry, remove to steep the used cryogenic condensation water of platform after the laundry is converged, it is standby to go into the hot water cistern through cold another condensed water surface low.
Like this, the low-temperature water heating that once heats production through heat pump need not circulate, and having saved what need increase when conventional heat pump is made hot water is the circulating pump of power with the electricity; And through the cooled cold air of heat pump directly be emitted on during in summer can replace the laundry in the laundry refrigeration air-conditioner with saves energy; Exhaust steam, condensed water also directly are emitted in the trench in the laundry no longer like before, have alleviated the moist phenomenon in the laundry on the one hand, have also reduced the laundry environment temperature on the other hand, physically and mentally healthy useful to equipment and employee.
Regulation according to power department electricity using at the peak time system, the low electricity price of 23:00～morning next day 7:00 every night period, it also is open peak time of laundry, electric boiler, people's camera, the hand of laundry scalded machine, folder machine, dry cleaner, went to steep the completely negative running of equipment such as platform, air source heat pump in period this, at this time the hot water amount of Sheng Chaning is very big, except that satisfying hotel's hot water consumption in this period, also have a large amount of more than needed, be stored in the heat accumulating type hot water cistern and use when daytime, the hot water consumption increased, so the present invention has heat accumulation function.
Under the condition of market economy, the competition of hotel, hotel industry is growing more intense.Want in competition, to stand on the invincible position, have only by reducing operating cost and improve the competitiveness.And the effective way that reduces cost is nothing more than two: strengthen management and technological transformation.Strengthening management is the measure of not spending or spending less, plays a part commander's overall situation.But when hotel management has reached suitable level, can only rely on scientific and technological advances, practice hard internal strength, saving is taped the latent power, and reduces cost, and pursues higher profit to greatest extent in the situation that the turnover is invariable.To certain four-star hotel thermal boiler, steam-supplying system, hot-water heating system invented the health hot water manufacture method of a kind of air heat source and exhaust steam residual heat complementary after studying, after according to this method this laundry, hotel, electric boiler, hot-water heating system being carried out appropriate reconstruction, can reduce hotel's energy consumption, water consumption significantly, reduce the discharging of Air thing.
Existing three electric boilers in a certain hotel are for laundry cleaning, dry clothes, bed clothes etc.It is open that daytime, the 12:00-14:00 laundry pressed from both sides machine, the boiling hot machine of hand, people's camera etc., only drives a 60KW electric boiler, and the flat machine that scalds is not opened.Available exhaust steam pressure: 1.6kg/cm
2, about 140 ℃ of temperature, the vapour amount is 76～86kg/h; Evening 23:00-7:00 the next morning, owing to utilize the low ebb electricity price, laundry folder machine, hand scald machine, people's camera, remove to steep platform, dryer, washing machine, the flat machine that scalds are opened up comprehensively, wherein washing machine hot water is supplied by hotel's sanitary hot water system, the flat machine that scalds adopts the conduction oil electricity consumption directly to heat, and generally should drive two 60KW electric boilers evening, because bad one of a 60KW electric boiler is arranged at present, so, drive a 60KW electric boiler and a 18KW electric boiler.Available exhaust steam pressure: 1.6kg/cm
2, about 140 ℃ of temperature, the vapour amount is 91～111kg/h; Every night, callable exhaust steam total amount was about 789～949kg; Utilize this part exhaust steam can produce about 12 tons of 55 ℃ of hot water every day, reclaim about 0.95 ton of high-temperature condensation water simultaneously, these two parts add up to can produce about about 13 tons of hot water, because 23:00～the next morning 7:00 in evening is the low peak period that hot water uses, this part hot water is stored in the boiler to be used second day daytime again.
According to this hotel's electric boiler, laundry and the present invention of health hot water ruuning situation an exhaust steam reclaimer is installed near electric boiler, to reclaim the laundry exhaust steam, to insert running water pipe simultaneously, then the exhaust steam reclaimer can be produced about about 13 tons of hot water every day.Because the laundry ambient air temperature is higher, be subjected to climatic effect little, and carrying out rich withered electricity price, be fit to air source heat pump is installed, is that 18KW, standard hot water output are the air source heat pump of 1.6t/h so a rated power is installed herein.The hot water amount of air source heat pump manufacturing every day is about 40 tons.In addition, set up a new 20m in the small pump front
3Hot water moisturizing pond is to guarantee not influence after native system puts into operation the pressure and the pipe network of former hot-water heating system.
During normal the business, the average day heat dissipation water yield in hotel is 50～60 tons, and native system just satisfies above-mentioned requirements.When hotel's turnover increases, during water consumption＞62 ton/day, the valve open between former pond and the new moisturizing pond can increase rate of water make-up, satisfies the demand of hotel's health hot water with assurance.The turnover is undesirable when the hotel, when the health hot water consumption reduces, can partly stop heat pump by day, to reduce hot water output, avoids causing waste.
After transforming by the inventive method, this hotel has obtained good economic benefit and social benefit.
1. economic benefit comprises two aspects. Its benefit that produces for saving day combustion gas is through above-mentioned After the transformation, year on average can reduce about 20% with hotel's gas consumption. This part year economic benefit is about 36.5 ten thousand yuan. It two is that high-temperature condensation water reclaims benefit. After above-mentioned transformation is finished, annual recyclable high temperature More than 1500 ton of condensate water, about 60,000 yuan of year economic benefit. Above binomial adds up to, after this project reconstruction is finished, Can be the hotel every year and economize on the use of funds about 42.5 ten thousand yuan.
2. the social benefit that produces is also embodied in two aspects. On the one hand, because with laundry and exhaust steam Recycle, can reduce environment temperature and the humidity in these two places after this project success is implemented, Effectively improve this local environment, the normal operation of equipment and employee's physical and mental health is of great benefit to. In addition On the one hand, because day combustion gas consumption of non-heating season joint boiler part is zero, so the discharging of hot water boiler smoke Also be zero, useful to urban environmental protection.
Claims (6)
1. the hot water manufacturing method of air heat source and exhaust steam residual heat complementary is characterized in that, adopts air source heat pump to add hot tap-water, and the temperature of running water is raise 8～12 ℃; The exhaust steam of reclaiming again in the laundry is carried out post bake with the hot water of air source heat pump output, and it is warming up to 55～70 ℃, and is standby.
2. the hot water manufacturing method of a kind of air heat source as claimed in claim 1 and exhaust steam residual heat complementary is characterized in that, described exhaust steam itself is condensed, and to flow into cistern standby for the condensed water that forms 80～95 ℃.
3. the hot water manufacturing method of a kind of air heat source as claimed in claim 1 and exhaust steam residual heat complementary is characterized in that, with the dry cleaner in the laundry and or remove to steep the used condensed water of platform and converge the back to flow into cistern standby.
4. as the hot water manufacturing method of claim 2 or 3 described a kind of air heat sources and exhaust steam residual heat complementary, it is characterized in that described condensed water is gone into cistern through the condensed water surface low.
5. the hot water manufacturing method of a kind of air heat source as claimed in claim 1 and exhaust steam residual heat complementary is characterized in that, the cold air after the air source heat pump heat absorption is emitted in the laundry.
6. as the hot water manufacturing method of claim 1,2,3 or 5 each described a kind of air heat sources and exhaust steam residual heat complementary, it is characterized in that, the cold air of laundry is arranged to the open air by air conduit.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100313528A CN101280958A (en) | 2008-05-21 | 2008-05-21 | Hot water manufacturing method of air heat source and exhaust steam residual heat complementary |
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| CNA2008100313528A CN101280958A (en) | 2008-05-21 | 2008-05-21 | Hot water manufacturing method of air heat source and exhaust steam residual heat complementary |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807910A (en) * | 2013-11-26 | 2014-05-21 | 金旭 | Solar heating system for kitchen and bathroom |
| CN104596006A (en) * | 2015-01-15 | 2015-05-06 | 王全龄 | Comprehensive afterheat heating system for domestic hot water and swimming pool water |
-
2008
- 2008-05-21 CN CNA2008100313528A patent/CN101280958A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807910A (en) * | 2013-11-26 | 2014-05-21 | 金旭 | Solar heating system for kitchen and bathroom |
| CN104596006A (en) * | 2015-01-15 | 2015-05-06 | 王全龄 | Comprehensive afterheat heating system for domestic hot water and swimming pool water |
| CN104596006B (en) * | 2015-01-15 | 2017-06-20 | 王全龄 | A kind of domestic hot-water and swimming pool residual heat integrative heating system |
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Open date: 20081008 |