CN2911547Y - Second kind of LiBr adsorption heat pump using verticle dual-side down membrane absorber for prepn. of steam - Google Patents
Second kind of LiBr adsorption heat pump using verticle dual-side down membrane absorber for prepn. of steam Download PDFInfo
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- CN2911547Y CN2911547Y CNU2006200714074U CN200620071407U CN2911547Y CN 2911547 Y CN2911547 Y CN 2911547Y CN U2006200714074 U CNU2006200714074 U CN U2006200714074U CN 200620071407 U CN200620071407 U CN 200620071407U CN 2911547 Y CN2911547 Y CN 2911547Y
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- absorber
- tube box
- heat pump
- pump
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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
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Abstract
The utility model relates to a second kind lithium bromide absorbing heat pump with a vertical bilateral falling-film absorber for steam generation, which comprises an evaporator (1), a vertical bilateral falling-film absorber (2), a generator (4), a condenser (5), a liquor heat exchanger (3), a controlling system, and pipelines, pumps, and valves, wherein, the vertical bilateral falling-film absorber comprises a cylinder (19), a vertical heat exchanging tube bundle (14), a tube plate (12), an upper pipe tank (10), a lower pipe tank (16), a hot water replenishing pipe (20), a hot water spray pump (17), a liquor blocking device (9), a liquor distributing device within the hot water tube (11), a liquor distributing device outside the concentrated liquor tube (13), and connecting pipelines, wherein, the upper pipe tank (10) is communicated with the lower pipe tank (16) of the absorber via the hot water spray pump (17) and the hot water spray pump outlet pipe (15); the liquor distributing device within the hot water tube (11) is arranged within the upper pipe tank of the absorber (10); the liquor distributing device outside the concentrated liquor tube (13) is arranged on the upper part of the cylinder of the absorber (19). The utility model has the advantages of minimizing the investment into and the operation cost of the heat pump and the whole system.
Description
Technical field:
The utility model 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 preparing steam by using vertical double-side falling-film absorber.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.Concentrated solution in the generator enters absorber 2 by concentrated solution pump 8 through solution heat exchanger 3 and absorbs the refrigerant vapour that evaporimeter 1 is 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 11 enters the intensification of absorber 2 tube sides, in vapor flash device 21, 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 22 after the moisturizing mixing, constantly produce steam with thermal field.Needing to increase the vapor flash device on this kind apparatus system, is that the hot water circuit amount that needs is big by the heat of absorption self because the liquid shwoot produces steam, the power consumption height of hot water circulating pump, and operating cost is higher.Need to increase vapor flash device and hot water circulating pump on this kind apparatus system.The systematic comparison complexity, and the saturation temperature of steam pressure correspondence is that hot water goes out the hot water minimum temperature that the vapor flash device enters absorber, the hot water temperature difference is big more, required hot water circuit amount is more little, the caliber of hot-water heating system and heat-exchanger pump discharge capacity are also more little, the investment of system and the power consumption of heat-exchanger pump are more little, but the temperature difference is big more, the hot water temperature of absorber outlet is also big more, it is big more that the heat transfer area of two class heat pump bodies needs, requirement to the waste heat source temperature is high more, the cost of two class heat pumps itself is high more, when the saturation temperature of absorber outlet temperature and steam correspondence is identical, and two class heat pump heat transfer area minimums, but the hot water flow infinity of this moment can't realize on native system.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned deficiency, and second lithium bromide absorption type heat pump of the preparing steam by using vertical double-side falling-film absorber of a kind of investment that can make heat pump body and system and operating cost minimum is provided.
The purpose of this utility model can be realized by following two schemes:
Scheme one: a kind of second lithium bromide absorption type heat pump of preparing steam by using vertical double-side falling-film absorber, comprise: evaporimeter, absorber, generator, condenser, solution heat exchanger, control system and connect the pipeline of each parts, pump, valve, described absorber is a vertical double-side falling-film 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 filling pipe, heat water-spraying's pump, liquid-blocking device, liquid distributor in the hot-water line, the 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 in the top and the bottom of absorber cylindrical shell, the hot water filling pipe inserts in absorber upper tube box or the absorber lower tube box, be connected with heat water-spraying's pump discharge pipe by heat water-spraying's pump between absorber upper tube box and the absorber lower tube box and communicate, liquid-blocking device is installed in the absorber upper tube box, liquid distributor is arranged in the absorber upper tube box in the hot-water line, and the outer liquid distributor of concentrated solution pipe is arranged in absorber cylindrical shell internal upper part.
Vertical double-side falling-film absorber of the present utility model substitutes the second lithium bromide absorption type heat pump unit that former absorber and generator, condenser, evaporimeter, solution heat exchanger, pump and system pipeline and external system pipeline and valve etc. are formed preparing steam by using vertical double-side falling-film absorber.Concentrated solution outside the vertical heat exchange tube of absorber, forms the solution liquid film by the outer even cloth of liquid distributor of concentrated solution pipe.Hot water is transported to the absorber upper tube box by heat-exchanger pump by the absorber lower tube box, by the even cloth of liquid distributor in the hot-water line in the vertical heat exchanger tube beam tube of absorber, form the hot water liquid film, the solution ebuillition of heated outer by pipe produces steam, flow in the steam chambers of heat-transfer pipe top, be transported to by liquid-blocking device and use the vapour place.Because hot water constantly is vaporized, so carry out the hot water moisturizing, hot water is in certain liquid level scope always by the liquid level in control absorber upper tube box or the lower tube box, make hot water rate of water make-up and steam generating amount balance.Heat water-spraying's pump mainly is in order to increase the sprinkle density in the heat-transfer pipe, improves the area utilization of heat-transfer pipe, so only need several times hot water evaporation capacity to get final product, power consumption seldom.Vertical double-side falling-film absorber has former hot water line, vapor flash device and absorber combination function together, the hot water temperature in vertical double-side falling-film absorber has guaranteed to manage and the saturation temperature of steam are basic identical, make the heat transfer temperature difference maximum of interior hot water of heat exchanger tube and the outer solution of heat exchanger tube, heat transfer area is little, compact overall structure, system power consumption is little, and 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, gas phase zone at absorber upper tube box and absorber lower tube box increases by a vapor communication pipe, the steam that produces in the heat-transfer pipe can enter the absorber lower tube box by the heat-transfer pipe lower end, enter the absorber upper tube box by the vapor communication pipe, increase the circulation passage of steam, reduce drag losses, improved the heat exchange effect.
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 is the second lithium bromide absorption type heat pump scheme, one schematic diagram of the utility model preparing steam by using vertical double-side falling-film absorber.
Fig. 4 is the second lithium bromide absorption type heat pump scheme, two schematic diagrames of the utility model preparing steam by using vertical double-side falling-film absorber.
The specific embodiment:
Scheme one: unit as shown in Figure 3, this unit are by evaporimeter 1, vertical double-side falling-film 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 connect the second lithium bromide absorption type heat pump unit of the preparing steam by using vertical double-side falling-film absorber that pipeline, valve constituted of each parts.Vertical double-side falling-film absorber 2 is made up of liquid distributor 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 16, heat water-spraying's pump 17, absorber cylindrical shell 19, hot water filling pipe 20 and connecting line, valve etc. in liquid-blocking device 9, absorber upper tube box 10, the hot-water line.Absorber cylindrical shell 19 is vertical layout, the vertical heat-exchanging tube bundle 14 of absorber is arranged in the absorber cylindrical shell 19 by absorber tube sheet 12, absorber upper tube box 10 and absorber lower tube box 16 are connected to the top and the bottom of absorber cylindrical shell 19, hot water filling pipe 20 inserts in absorber upper tube box 10 or the absorber lower tube box 16, be connected with heat water-spraying's pump discharge pipe 15 by heat water-spraying's pump 17 between absorber upper tube box 10 and the absorber lower tube box 16 and communicate, liquid-blocking device 9 is installed in the absorber upper tube box 10, liquid distributor 11 is arranged in the absorber upper tube box 10 in the hot-water line, the outer liquid distributor 13 of concentrated solution pipe is arranged in absorber cylindrical shell 19 internal upper parts, is connected with the outlet of solution heat exchanger 3 concentrated solutions 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 double-side falling-film 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 that evaporimeter 1 is come, hot water in the heating heat exchanger tube is fallen absorber cylindrical shell bottom after concentration is thinning, get back to generator 4.Continuous moisturizing is controlled hot water in the certain liquid level scope according to liquid level in absorber lower tube box 16, heat water-spraying's pump 17 is squeezed into the absorber upper tube box by heat water-spraying's pump discharge pipe 15, by liquid distributor in the hot-water line with the even cloth of hot water in the pipe of the vertical heat-exchanging tube bundle 14 of absorber, in heat exchanger tube, form the hot water liquid film, the heat of the outer solution of absorption tube, part hot water vaporization produces water vapour, go out heat exchanger tube and enter the absorber upper tube box, by being installed in the liquid-blocking device 9 in the absorber upper tube box 10, the saturated vapor of generation uses for the user.Do not have the hot water of vaporization to get back to the absorber lower tube box, circulate by heat water-spraying's pump.
Scheme two is as Fig. 4, it is to set up a vapor communication pipe 18 in the gas phase zone of absorber upper tube box 10 and absorber lower tube box 16 on the basis of scheme one, structure difference according to liquid distributor in the hot-water line 11, steam can heat-transfer pipe go out vapour up and down simultaneously, increase the circulation area of steam, also can only go out vapour in the bottom, with the hot water following current, strengthen heat exchange, the heat-transfer pipe bottom goes out vapour and enters absorber lower tube box 16, by entering absorber upper tube box 10 communicating pipe.
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.The hot water filling pipe also can enter absorber upper tube box 10.
Claims (6)
1, a kind of second lithium bromide absorption type heat pump of preparing steam by using vertical double-side falling-film absorber, this unit comprises: evaporimeter (1), absorber (2), generator (4), condenser (5), solution heat exchanger (3), control system and connect the pipeline of each parts, pump, valve, it is characterized in that: described absorber (2) is a vertical double-side falling-film absorber, comprise: absorber cylindrical shell (19), the vertical heat-exchanging tube bundle of absorber (14), absorber tube sheet (12), absorber upper tube box (10), absorber lower tube box (16), hot water filling pipe (20), heat water-spraying's pump (17), liquid-blocking device (9), liquid distributor (11) in the hot-water line, the outer liquid distributor (13) of concentrated solution pipe, and connecting line, absorber cylindrical shell (19) is vertical layout, the vertical heat-exchanging tube bundle of absorber (14) is arranged in the absorber cylindrical shell (19) by absorber tube sheet (12), absorber upper tube box (10) and absorber lower tube box (16) are connected in the top and the bottom of absorber cylindrical shell (19), hot water filling pipe (20) inserts in absorber upper tube box (10) or the absorber lower tube box (16), be connected with heat water-spraying's pump discharge pipe (15) by heat water-spraying's pump (17) between absorber upper tube box (10) and the absorber lower tube box (16) and communicate, liquid-blocking device (9) is installed in the absorber upper tube box (10), liquid distributor (11) is arranged in the absorber upper tube box (10) in the hot-water line, and the outer liquid distributor (13) of concentrated solution pipe is arranged in absorber cylindrical shell (19) internal upper part.
2, second lithium bromide absorption type heat pump of a kind of preparing steam by using vertical double-side falling-film absorber according to claim 1 is characterized in that: set up a vapor communication pipe (18) in the gas phase zone of absorber upper tube box (10) and absorber lower tube box (16).
3, second lithium bromide absorption type heat pump of a kind of preparing steam by using vertical double-side falling-film absorber according to claim 1 and 2 is characterized in that: the waste heat source of described heat pump is flow process in parallel or serial flow.
4, second lithium bromide absorption type heat pump of a kind of preparing steam by using vertical double-side falling-film absorber according to claim 1 and 2 is characterized in that: the evaporimeter of described heat pump, generator, condenser are for being horizontal or vertical integral way layout.
5, second lithium bromide absorption type heat pump of a kind of preparing steam by using vertical double-side falling-film absorber according to claim 1 and 2 is characterized in that: the generator of described heat pump, condenser are arranged on evaporimeter, above the absorber or bottom or placed apart.
6, second lithium bromide absorption type heat pump of a kind of preparing steam by using vertical double-side falling-film absorber according to claim 1 and 2 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 |
|---|---|---|---|
| CNU2006200714074U CN2911547Y (en) | 2006-05-11 | 2006-05-11 | Second kind of LiBr adsorption heat pump using verticle dual-side down membrane absorber for prepn. of steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200714074U CN2911547Y (en) | 2006-05-11 | 2006-05-11 | Second kind of LiBr adsorption heat pump using verticle dual-side down membrane absorber for prepn. of steam |
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| Publication Number | Publication Date |
|---|---|
| CN2911547Y true CN2911547Y (en) | 2007-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200714074U Expired - Lifetime CN2911547Y (en) | 2006-05-11 | 2006-05-11 | Second kind of LiBr adsorption heat pump using verticle dual-side down membrane absorber for prepn. of steam |
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| CN (1) | CN2911547Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389294C (en) * | 2006-05-10 | 2008-05-21 | 江苏双良空调设备股份有限公司 | Second lithium bromide absorption type heat pump for preparing steam by using vertical double-side falling-film absorber |
| CN101957035A (en) * | 2010-05-14 | 2011-01-26 | 王开明 | Vaporization heat fully recyclable lithium bromide central air-conditioning |
-
2006
- 2006-05-11 CN CNU2006200714074U patent/CN2911547Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100389294C (en) * | 2006-05-10 | 2008-05-21 | 江苏双良空调设备股份有限公司 | Second lithium bromide absorption type heat pump for preparing steam by using vertical double-side falling-film absorber |
| CN101957035A (en) * | 2010-05-14 | 2011-01-26 | 王开明 | Vaporization heat fully recyclable lithium bromide central air-conditioning |
| CN101957035B (en) * | 2010-05-14 | 2012-10-03 | 王开明 | Vaporization heat fully recyclable lithium bromide central air-conditioning |
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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 |
Effective date of abandoning: 20080521 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |