CN100383477C - Second lithium bromide absorption type heat pump for direct preparation of steam - Google Patents
Second lithium bromide absorption type heat pump for direct preparation of steam Download PDFInfo
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- CN100383477C CN100383477C CNB2006100402984A CN200610040298A CN100383477C CN 100383477 C CN100383477 C CN 100383477C CN B2006100402984 A CNB2006100402984 A CN B2006100402984A CN 200610040298 A CN200610040298 A CN 200610040298A CN 100383477 C CN100383477 C CN 100383477C
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- absorber
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- hot water
- lithium bromide
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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
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
Abstract
The present invention relates to a second lithium bromide absorption type heat pump for direct preparation of steam, which comprises an evaporator (1), an upright absorber (2), a generator (4), a condenser (5), a solution heat exchanger (3), a control system, pipelines, pumps and valves, wherein the pipelines, the pumps and the valves are used for connecting the components. The upright absorber comprises an absorber cylinder (16), an upright heat exchange tube bundle (14) of the absorber, an absorber tube sheet (12), an absorber upper header (10), an absorber lower header (15), a hot water supply water pipe (17), a liquid baffling device (9), a pipe outside solution distributing device (13) of concentrated solution and connecting pipelines, wherein the upright heat exchange tube bundle (14) of the absorber is arranged in an absorber cylinder (16) through the absorber tube sheet (12), the absorber upper header (10) and the absorber lower header (15) are respectively connected at the top part and the bottom part of the absorber cylinder (16), the hot water supply water pipe (17) is connected in the absorber lower header (15), the liquid baffling device (9) is arranged in the absorber upper header (10), and the pipe outside solution distributing device (13) of concentrated solution (13) is arranged at the upper part in the absorber cylinder (16). The present invention has the advantages of high heat exchange efficiency, low energy consumption, and simple and compact structure.
Description
Technical field:
The present invention relates to a kind of second lithium bromide absorption type heat pump unit.Be specifically related to a kind of second lithium bromide absorption type heat pump of directly producing steam.Belong to technical field of refrigeration equipment.
Background technology:
The second lithium bromide absorption type heat pump unit in the past as shown in Figure 1.Unit shown in Figure 1 is the second lithium bromide absorption type heat pump unit of standard.Second lithium bromide absorption type heat pump as driving heat source, obtains the thermal source of higher temperature with waste thermal energy under the condition of using cooling, be a kind of equipment of the energy effectively reclaiming waste heat energy.This equipment mainly contains generator 4, condenser 5, evaporimeter 1, absorber 2, solution heat exchanger 3 compositions.Heating flow process is that the waste heat source adds the lithium-bromide solution in the heater 4, makes it produce water vapour concentration rising simultaneously.The water vapour that the produces water condensation that is cooled in condenser 5 becomes water as refrigerant, cooling water is taken the heat of refrigerant vapour outside the machine out of from condenser 5, water as refrigerant enters evaporimeter water as refrigerant liquid capsule by condenser cryogenic fluid pump 7, squeeze into the heat-transfer pipe of evaporator surface by evaporimeter refrigerant cycle pump 6 again, draw the heat in waste heat source and evaporate, the concentrated solution in the generator enters absorber 2 by concentrated solution pump 8 through solution heat exchanger 3 and absorbs the refrigerant vapour that evaporimeters 1 are come.Fluid in the heat heating absorber tube that absorption process produces raises the interior hot water temperature of pipe, for using with thermal field.
When adopting the second lithium bromide absorption type heat pump unit to produce steam, as shown in Figure 2, hot water is after hot water circulating pump 20 enters the intensification of absorber 2 tube sides, in vapor flash device 19, spray, partially liq absorbs the heat shwoot of liquid self, produce steam and flow to for using after by liquid-blocking device 9, do not have after the liquid cooling of shwoot and circulate by hot water circulating pump after the moisturizing mixing, constantly produce steam with thermal field.Need to increase vapor flash device and hot water circulating pump on this kind apparatus system.The systematic comparison complexity, initial cost is big.Because cooling produces steam by hot water self shwoot in the vapor flash device, the hot water circuit amount that needs is big, the power consumption height of hot water circulating pump, and operating cost is higher.
Summary of the invention:
The objective of the invention is to overcome above-mentioned deficiency, a kind of heat exchange efficiency height, energy consumption second lithium bromide absorption type heat pump of directly producing steam little, simple and compact for structure are provided.
Purpose of the present invention can be realized by following three schemes:
Scheme one: a kind of second lithium bromide absorption type heat pump of directly producing steam, comprise: evaporimeter, absorber, generator, condenser, solution heat exchanger, control system and connect the pipeline of each parts, pump, valve, it is characterized in that: described absorber is vertical absorber, comprise: the absorber cylindrical shell, the vertical heat-exchanging tube bundle of absorber, the absorber tube sheet, the absorber upper tube box, the absorber lower tube box, the hot water down-comer, the hot water filling pipe, liquid-blocking device, outer liquid distributor of concentrated solution pipe and connecting line, valve, the absorber cylindrical shell is vertical layout, the vertical heat-exchanging tube bundle of absorber is arranged in the absorber cylindrical shell by the absorber tube sheet, absorber upper tube box and absorber lower tube box are connected to the top and the bottom of absorber cylindrical shell, be connected with the hot water down-comer between absorber upper tube box and the absorber lower tube box, the hot water filling pipe inserts in the absorber lower tube box, liquid-blocking device is installed in the absorber upper tube box, and the outer liquid distributor of concentrated solution pipe is arranged in absorber cylindrical shell internal upper part.Concentrated solution outside the vertical heat exchanger tube beam tube of absorber, forms the solution liquid film by the outer even cloth of liquid distributor of concentrated solution pipe.Hot water is managed outer solution ebuillition of heated and is produced steam in the vertical heat-transfer pipe pipe of absorber, enters in the absorber upper tube box, is transported to by liquid-blocking device and uses the vapour place.When operation, the hot water down-comer is under absorber upper tube box hot water liquid level, because hot water is being carried vapor bubbles secretly in the vertical heat exchanger tube of absorber, density reduces and the formation tedge that rises fast, and the hot water density of hot water down-comer is bigger than tedge, and the hot water of pressured official post upper tube box flows to lower tube box, forms convection current, improve the vertical heat-exchanging tube bundle flow rate of hot water of absorber, improved the heat exchange effect.Because hot water constantly is vaporized, so carry out the hot water moisturizing in the bottom of absorber lower tube box, hot water is in certain liquid level scope always by the liquid level in the control absorber upper tube box, make hot water rate of water make-up and steam generating amount balance.Vertical absorber of the present invention has former hot water line, vapor flash device and absorber combination function together, structure of the present invention does not adopt heat-exchanger pump, principle by thermal siphon makes hot water reach free convection, improved the heat exchange effect, heat transfer area and energy consumption have been reduced, simplify the structure, make overall structure simply compact.The initial cost and the operating cost of heat pump body and external system all significantly reduce.
Scheme two, on the basis of scheme one, cancellation hot water down-comer, increasing vertical baffle plate device on the absorber upper perforated plate separates the liquid phase region of absorber upper tube box, both sides form high and low liquid level, side at the absorber upper tube box is carried out the hot water moisturizing, make the hot water liquid level height of this side, hot water is constantly descended in the vertical heat exchanger tube beam tube of absorber, opposite side is not owing to there is moisturizing, the hot water liquid level is low, moisturizing by hot water produces forced flow in heat-transfer pipe, the heat-transfer pipe of hot water moisturizing side becomes down-comer, and opposite side forms tedge.Hot water is managed outer solution heat temperature raising boiling and is produced steam in the vertical heat-transfer pipe pipe of absorber, in the inflow absorber upper tube box steam chambers that rises fast, is transported to by liquid-blocking device and uses the vapour place.
Scheme three, on the basis of scheme one, the hot water down-comer between the upper and lower bobbin carriage of cancellation absorber.The import of hot water filling pipe is arranged on the absorber lower tube box, and hot water is in the vertical heat-transfer pipe formation of absorber forced flow from down to up.
Description of drawings:
Fig. 1 is the second lithium bromide absorption type heat pump unit schematic diagram in the past.
Schematic diagram when Fig. 2 produces steam for the employing second lithium bromide absorption type heat pump unit in the past.
Fig. 3 directly produces the second lithium bromide absorption type heat pump scheme, one schematic diagram of steam for the present invention.
Fig. 4 directly produces the second lithium bromide absorption type heat pump scheme, two schematic diagrames of steam for the present invention.
The specific embodiment:
Scheme one: unit as shown in Figure 3, this unit are a kind of second lithium bromide absorption type heat pump units of directly producing steam that is made of evaporimeter 1, vertical absorber 2, generator 4, condenser 5, solution heat exchanger 3, refrigerant cycle pump 6, condenser cryogenic fluid pump 7, concentrated solution pump 8, control system (not shown) and pipeline, valve of connecting each parts etc.Vertical absorber 2 is made of liquid-blocking device 9, absorber upper tube box 10, hot water down-comer 11, absorber tube sheet 12, the outer liquid distributor 13 of concentrated solution pipe, the vertical heat-exchanging tube bundle 14 of absorber, absorber lower tube box 15, absorber cylindrical shell 16, hot water filling pipe 17 and other corresponding connecting line, valve etc.Absorber cylindrical shell 16 is vertical layout, the vertical heat-exchanging tube bundle 14 of absorber is arranged in the absorber cylindrical shell 16 by absorber tube sheet 12, absorber upper tube box 10 and absorber lower tube box 15 are connected in the top and the bottom of absorber cylindrical shell 16, hot water filling pipe 17 inserts in the absorber lower tube box 15, is connected with hot water down-comer 11 between absorber upper tube box 10 and the absorber lower tube box 15.Hot water down-comer 11 can be one or several.Liquid-blocking device 9 is installed in the absorber upper tube box 10, and the outer liquid distributor 13 of concentrated solution pipe is arranged in absorber cylindrical shell 16 internal upper parts, is connected with the concentrated solution outlet of solution heat exchanger 3 to communicate.During the second lithium bromide absorption type heat pump unit operation, the generator concentrated solution is transported to the cylindrical shell top of vertical absorber 2 through solution heat exchanger 3 by concentrated solution pump 8, by the outer liquid distributor 13 of concentrated solution pipe with the even cloth of concentrated solution outside the pipe of the vertical heat-exchanging tube bundle 14 of absorber, outside heat exchanger tube, form the concentrated solution liquid film, absorb the refrigerant vapour of flash-pot 1, hot water in the heating heat exchanger tube is fallen absorber cylindrical shell bottom after concentration is thinning, get back to generator 4 through solution heat exchanger 3.Continuous moisturizing in absorber lower tube box 15 is controlled the hot water amount in the certain liquid level scope according to the liquid level in the absorber upper tube box 10.Hot water in the pipe of the vertical heat-exchanging tube bundle 14 of absorber, the heat of the outer solution of absorption tube, part hot water vaporization produces water vapour, hot water is being carried vapor bubbles secretly, density reduces and in inflow absorber upper tube box 10 steam chambers that rise fast, by being installed in the liquid-blocking device 9 in the absorber upper tube box 10, the saturated vapor of generation is transported to uses the vapour place.The hot water that is not vaporized enters hot water down-comer 11, and owing to the steam bubble that do not have in the hot water down-comer, density forms in the pressure reduction inflow absorber lower tube box 15 than the liquid-vapor mixture height in the vertical heat-exchanging tube bundle 14 of absorber, forms natural back flow.
Scheme two is as Fig. 4, cancellation hot water down-comer 11 on the basis of scheme one, increase vertical baffle plate device 11 on the absorber upper perforated plate liquid phase region of absorber upper tube box 10 is separated, both sides form high and low liquid level, carry out the hot water moisturizing in a side of absorber upper tube box 10.
Scheme three, on the basis of scheme one, the hot water down-comer 11 between the upper and lower bobbin carriage of cancellation absorber.The import of hot water filling pipe is arranged on absorber lower tube box 15, the forced flow that hot water forms from down to up at the vertical heat-transfer pipe 14 of absorber.
Such scheme is applicable to waste heat source flow process in parallel, serial flow.Evaporimeter, generator, condenser can be horizontal layouts, also can be vertical layouts, the entire arrangement mode, and generator, condenser can be arranged on evaporimeter, above the absorber, also can be arranged on the bottom of evaporimeter, absorber or placed apart.Generator, condenser can be that the single hop pattern also can be the multistage pattern.
Claims (5)
1. second lithium bromide absorption type heat pump of directly producing steam, comprise: evaporimeter (1), absorber (2), generator (4), condenser (5), solution heat exchanger (3), control system and connect the pipeline of each parts, pump, valve, described absorber (2) is vertical absorber, comprise: absorber cylindrical shell (16), the vertical heat-exchanging tube bundle of absorber (14), absorber tube sheet (12), absorber upper tube box (10), absorber lower tube box (15), hot water filling pipe (17), liquid-blocking device (9), outer liquid distributor (13) of concentrated solution pipe and connecting line, absorber cylindrical shell (16) is vertical layout, the vertical heat-exchanging tube bundle of absorber (14) is arranged in the absorber cylindrical shell (16) by absorber tube sheet (12), absorber upper tube box (10) and absorber lower tube box (15) are connected to the top and the bottom of absorber cylindrical shell (16), liquid-blocking device (9) is installed in the absorber upper tube box (10), the outer liquid distributor (13) of concentrated solution pipe is arranged in absorber cylindrical shell (16) internal upper part, it is characterized in that: going up at absorber upper perforated plate (12) increases vertical baffle plate device (11), hot water filling pipe (17) is inserted a side of absorber upper tube box (10).
2. a kind of second lithium bromide absorption type heat pump of directly producing steam according to claim 1, it is characterized in that: the waste heat source of described heat pump is flow process in parallel or serial flow.
3. a kind of second lithium bromide absorption type heat pump of directly producing steam according to claim 1 is characterized in that: the evaporimeter of described heat pump, generator, condenser are for being horizontal or vertical integral way layout.
4. a kind of second lithium bromide absorption type heat pump of directly producing steam according to claim 1 is characterized in that: the generator of described heat pump, condenser are arranged on evaporimeter, above the absorber or bottom or placed apart.
5. a kind of second lithium bromide absorption type heat pump of directly producing steam according to claim 1 is characterized in that: the generator of described heat pump, condenser are single hop pattern or multistage pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100402984A CN100383477C (en) | 2006-05-10 | 2006-05-10 | Second lithium bromide absorption type heat pump for direct preparation of steam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100402984A CN100383477C (en) | 2006-05-10 | 2006-05-10 | Second lithium bromide absorption type heat pump for direct preparation of steam |
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| CN1865816A CN1865816A (en) | 2006-11-22 |
| CN100383477C true CN100383477C (en) | 2008-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006100402984A Active CN100383477C (en) | 2006-05-10 | 2006-05-10 | Second lithium bromide absorption type heat pump for direct preparation of steam |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832679A (en) * | 2010-05-10 | 2010-09-15 | 江苏双良空调设备股份有限公司 | Dual-effect type-II lithium bromide absorption heat pump unit |
| CN102155810B (en) * | 2011-04-09 | 2012-07-25 | 大连理工大学 | Absorption high-temperature heat pump system |
| CN103697616B (en) * | 2013-12-26 | 2016-05-04 | 李华玉 | Second-kind absorption-type heat pump along separate routes circulates |
| CN106091489B (en) * | 2016-08-01 | 2020-03-27 | 北京联力源科技有限公司 | Vertical double-falling-film heat exchanger and absorption heat pump |
Citations (6)
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| JPH07103611A (en) * | 1993-10-08 | 1995-04-18 | Kawaju Reinetsu Kogyo Kk | Vertical evaporator |
| JPH07104065B2 (en) * | 1987-10-14 | 1995-11-13 | 三菱電機株式会社 | Absorption heat pump device |
| CN2241306Y (en) * | 1995-08-30 | 1996-11-27 | 刘绿江 | Heat exchanger |
| CN1170126A (en) * | 1996-07-09 | 1998-01-14 | 刘小江 | One pump, vertical pipe and downward film lithium bromide refrigeration technology |
| CN2500985Y (en) * | 2001-08-16 | 2002-07-17 | 江苏双良空调设备股份有限公司 | Steam type lithium bromide absorption refrigerator and heat pump working steam condensate generator |
| CN2911552Y (en) * | 2006-05-11 | 2007-06-13 | 江苏双良空调设备股份有限公司 | Second kind of LiBr adsorption heat pump for directly preparing steam |
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2006
- 2006-05-10 CN CNB2006100402984A patent/CN100383477C/en active Active
Patent Citations (6)
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|---|---|---|---|---|
| JPH07104065B2 (en) * | 1987-10-14 | 1995-11-13 | 三菱電機株式会社 | Absorption heat pump device |
| JPH07103611A (en) * | 1993-10-08 | 1995-04-18 | Kawaju Reinetsu Kogyo Kk | Vertical evaporator |
| CN2241306Y (en) * | 1995-08-30 | 1996-11-27 | 刘绿江 | Heat exchanger |
| CN1170126A (en) * | 1996-07-09 | 1998-01-14 | 刘小江 | One pump, vertical pipe and downward film lithium bromide refrigeration technology |
| CN2500985Y (en) * | 2001-08-16 | 2002-07-17 | 江苏双良空调设备股份有限公司 | Steam type lithium bromide absorption refrigerator and heat pump working steam condensate generator |
| CN2911552Y (en) * | 2006-05-11 | 2007-06-13 | 江苏双良空调设备股份有限公司 | Second kind of LiBr adsorption heat pump for directly preparing steam |
Non-Patent Citations (1)
| Title |
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| 两级第二类吸收式热泵的仿真分析. 焦永刚，张学龙，胡定科.石家庄铁路职业技术学院学报，第4卷第1期. 2005 * |
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| CN1865816A (en) | 2006-11-22 |
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Owner name: SHUANGLIANG ECO-ENERGEY SYSTEMS CO.,LTD. Free format text: FORMER OWNER: SHUANGLIANG AIR CONDITIONING EQUIPMENT CO LTD, JIANGSU Effective date: 20100913 |
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Effective date of registration: 20100913 Address after: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee after: Shuangliang Energy Saving System Co., Ltd. Address before: 214444 Jiangsu city of Jiangyin Province Li Town Road No. 1 West Patentee before: Shuangliang Air Conditioning Equipment Co., Ltd., Jiangsu |