CN101526281B - Hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit - Google Patents
Hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit Download PDFInfo
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- CN101526281B CN101526281B CN2009100280694A CN200910028069A CN101526281B CN 101526281 B CN101526281 B CN 101526281B CN 2009100280694 A CN2009100280694 A CN 2009100280694A CN 200910028069 A CN200910028069 A CN 200910028069A CN 101526281 B CN101526281 B CN 101526281B
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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 invention relates to a hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit which comprises a direct-fired high pressure generator (6), an evaporator (22), an absorber (1), a hot-water generator (15), a vapour generator (17), a condenser (21), a high-temperature heat exchanger (5), a low-temperature heat exchanger (3), a solution pump (23), a cryogenic fluid pump (24), pipelines which connect each part, and a valve, wherein a hot-water heat exchange tube bundle (18) of the hot-water generator (15) and a vapour heat exchange tube bundle (19) of the vapour generator (17) are arranged in a same cylinder body (20), a splitter plate (16) is arranged between the hot-water heat exchange tube bundle (18) and the vapour heat exchange tube bundle (19), a return tube (14) is arranged in the hot-water generator (15), and a low-temperature solution inlet pipe of the high-temperature heat exchanger (5) is provided with a boosting pump (4). The hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit can simultaneously or respectively utilize heat drive generated by hot water or directly burning fuel to match and control the cooling operation.
Description
(1) technical field
The present invention relates to a kind of lithium bromide absorption cold water, hot and cold water unit.Belong to air conditioner technical field.
(2) background technology
In the past can be at the same time or separately with hot water (as solar water, underground heat hot water, the spent hot waters that various production technology links produce etc.) heat drive of heat and directly combustion fuel generation is carried out refrigerating operaton, carry out heating operation with the heat drive that direct combustion fuel produces, the hot-water direct-fired dual-purpose type lithium bromide absorption cold and hot water unit that is used to provide idle call cold (heat) water as shown in Figure 1, the low pressure generator 34 of this unit adopts the compound generator architecture of hot water and steam, weak solution cross over pipe 26 between low temperature heat exchanger 3 and the low pressure generator is provided with electric control valve 31, on feed tube 30 occurred frequently, be provided with magnetic valve 29, make unit can utilize the heat drive of hot water or directly combustion fuel generation to carry out refrigerating operaton at the same time or separately.But there is following weak point in this unit:
1, electric control valve and magnetic valve must adopt the valve of high-air-tightness, high reliability, bring difficulty (available valve or cost an arm and a leg on the market, or performance can not meet the demands) for the outsourcing piece type selecting;
When 2, unit utilizes the heat drive refrigerating operaton of hot water heat and directly combustion fuel generation simultaneously, the running frequency of solution pump 23 is controlled automatically according to the pressure of direct combustion high pressure generator 6, also to regulate control simultaneously to the aperture of electric control valve, enter the weak solution amount of low pressure generator with minimizing, the control difficulty is big, is difficult to realize that the solution internal circulating load distributes and add matched well between the heat complementation.
(3) summary of the invention
The objective of the invention is to overcome above-mentioned deficiency, provide a kind of heat drive that makes unit can utilize hot water or directly combustion fuel generation at the same time or separately to carry out hot-water direct-fired lithium bromide absorption type cold water, the hot and cold water unit of refrigerating operaton.
Purpose of the present invention is being achieved in that a kind of hot-water direct-fired lithium bromide absorption type cold water, the hot and cold water unit, comprise Direct Fired High Pressure Generator, evaporimeter, absorber, hot water generator, steam generator, condenser, high-temperature heat exchanger, low temperature heat exchanger, solution pump, cryogenic fluid pump and connect the pipeline and the valve of each parts, the hot water heat-exchanging tube bundle of described hot water generator and the tube bank of the steam heat-exchanging of steam generator are arranged in the same cylindrical shell, be provided with demarcation strip between described hot water heat-exchanging tube bundle and the steam heat-exchanging tube bank, in hot water generator, be provided with overflow pipe, on the cryogenic fluid feed tube of described high-temperature heat exchanger booster be housed.
The present invention makes unit can utilize the heat drive of hot water or directly combustion fuel generation to carry out refrigerating operaton at the same time or separately by overflow pipe and booster are set simultaneously, has overcome the weak point that adopts electric control valve and magnetic valve, and is simple in structure.Unit utilize simultaneously the hot water heat and directly combustion fuel produce the heat drive refrigerating operaton time, be easy to carry out the solution internal circulating load and distribute with the coupling that adds between the heat complementation and control.During unit operation, make full use of the heat energy of spent hot water or cheap hot water, have only when water-heating cooling amount (heating load) can not satisfy the air-conditioning demand, just start burner and carry out supplementary heating.
(4) description of drawings
Fig. 1 is a hot-water direct-fired dual-purpose type lithium bromide absorption cold and hot water unit schematic diagram in the past.
Fig. 2 is an embodiment schematic diagram (cooling water flow path adopts flow process in parallel) of hot-water direct-fired lithium bromide absorption type cold water of the present invention, hot and cold water unit.
Fig. 3 is another embodiment schematic diagram (cooling water flow path adopts flow process in parallel) of hot-water direct-fired lithium bromide absorption type cold water of the present invention, hot and cold water unit.
Fig. 4 is an embodiment schematic diagram again (cooling water flow path employing serial flow) of hot-water direct-fired lithium bromide absorption type cold water of the present invention, hot and cold water unit.
Fig. 5 is used for the hot-water direct-fired lithium bromide absorption type cold water unit of separate refrigeration for the present invention.
Reference numeral among the figure:
(5) specific embodiment
The present invention is unit as shown in Figure 2, and this unit is by flue gas type high pressure generator 6, evaporimeter 22, absorber 1, hot water generator 15, steam generator 17, condenser 21, high-temperature heat exchanger 5, low temperature heat exchanger 3, solution pump 23, cryogenic fluid pump 24, control system (not shown) and connects the fume hot-water type lithium bromide absorption cold and hot water unit that pipeline, valve constituted of each parts.The hot water heat-exchanging tube bundle 18 of hot water generator 15 and the steam heat-exchanging of steam generator 17 tube bank 19 are arranged in the same cylindrical shell 20 (hot water generator and steam generator are low pressure generator), are provided with demarcation strip 16 between two heat-exchanging tube bundles; The weak solution drain pipe of low temperature heat exchanger 3 is received hot water generator 15 tops as hot water generator feed tube 8; The liquid feeding end that hot water generator drain pipe 9 is received high-temperature heat exchanger 5 as the cryogenic fluid feed tube of high-temperature heat exchanger covers, and booster 4 is housed on the hot water generator drain pipe 9; The intermediate solution drain pipe of high-temperature heat exchanger 5 is received steam generator 17 tops as steam generator feed tube 13; Steam generator drain pipe 10 is low temperature heat exchanger concentrated solution feed tube; Be provided with overflow pipe 14 in hot water generator 15, the feed liquor mouth of pipe of overflow pipe 14 is positioned at hot water generator 15 bottoms, and the fluid mouth of pipe is received on the steam generator drain pipe 10; On the pipeline between drain pipe occurred frequently 7 that goes out flue gas type high pressure generator 6 and the absorber 1, solution transfer valve 2 is housed; On the pipeline between refrigerant vapour pipe 11 that goes out flue gas type high pressure generator 6 and the evaporimeter 22, steam transfer valve 12 is housed.
When unit utilizes the heat refrigerating operaton of hot water and combustion fuel generation simultaneously, solution transfer valve and steam transfer valve are closed, the weak solution of from absorber, exporting by solution pump through low temperature heat exchanger heat exchange intensification after the hot water generator feed tube enter hot water generator and be evenly distributed on the hot water heat-exchanging tube bundle, by hot water heating, after raising, temperature, concentration enters the hot water generator bottom from external device (ED) (or system); Enter the solution of hot water generator bottom, a part enters the hot water generator drain pipe, is boosted and is carried by booster, enters Direct Fired High Pressure Generator after the high-temperature heat exchanger heat exchange heats up, and another part flows into the steam generator drain pipe through overflow pipe.The heat heating that enters the burned device 25 combustion fuels generation of solution in the Direct Fired High Pressure Generator is condensed into intermediate solution, intermediate solution is after drain pipe occurred frequently enters high-temperature heat exchanger heat exchange cooling, enter steam generator and be evenly distributed in the steam heat-exchanging tube bank through the steam generator feed tube, be condensed into concentrated solution by the further heating of refrigerant vapour (from Direct Fired High Pressure Generator) in the pipe, enter the steam generator bottom then; The concentrated solution that enters steam generator bottom enters the steam generator drain pipe, with from hot water generator, through solution that overflow pipe flows into together after low temperature heat exchanger heat exchange cooling, enter absorber.Condense into water as refrigerant (being called water as refrigerant occurred frequently again) after the outer solution heat release of refrigerant vapour heating tube in the steam heat-exchanging tube bank, enter condenser then; The outer solution of the pipe of hot water heat-exchanging tube bundle and steam heat-exchanging tube bank is heated the steam that is produced and enters the condenser heat-exchanging tube bundle, be condensed into water as refrigerant, this water as refrigerant and water as refrigerant occurred frequently together enter evaporimeter, being sprayed evaporator tube carries out sweat cooling outward, thereby realizes utilizing simultaneously the heat of hot water and directly combustion fuel generation to freeze.The solution amount that booster is carried is carried out VFC by the control system of unit according to the pressure of Direct Fired High Pressure Generator, the fuel combustion amount of burner is big more, pressure occurred frequently is high more, the running frequency of booster is high more, the solution amount that booster is carried is big more, the solution amount that enters the steam generator drain pipe through overflow pipe is then more little, thereby realizes the matched well between distribution of solution internal circulating load and the heating load.
When unit utilized hot water heat refrigerating operaton separately, solution transfer valve, steam transfer valve were closed, burner and booster stall, and the solution that goes out the hot water generator heat-exchanging tube bundle all flows into the steam generator drain pipe through overflow pipe.
When unit utilizes the heat refrigerating operaton of combustion fuel generation separately, solution transfer valve, steam transfer valve are closed, no hot water circulation in the hot water generator heat exchanger tube, hot water generator is only as solution channel, solution pump and the control of booster synchronous frequency conversion, the solution that enters hot water generator is all through the hot water generator drain pipe, by the booster conveying of boosting, enters Direct Fired High Pressure Generator through high-temperature heat exchanger.
During the unit heat supply running, solution transfer valve, steam transfer valve are opened, (external heat source hot water is directly sent into the air-conditioning system heat supply in no hot water circulation in the hot water generator pipe, or provide air conditioning hot after sending into the heat exchanger heat exchange), hot water generator is only as solution channel, the solution that enters hot water generator is all through the hot water generator drain pipe, by the booster conveying of boosting, enters Direct Fired High Pressure Generator through high-temperature heat exchanger.
The fuel combustion amount of burner is regulated control by the control system of unit automatically according to the required heat that adds of air conditioner load, when thermal source hot water is spent hot water or cheap hot water, unit makes full use of the heat energy of spent hot water or cheap hot water, have only when water-heating cooling amount (heating load) can not satisfy the air-conditioning demand, just start burner and carry out supplementary heating.
When the hot water heat-exchanging tube bundle of hot water generator and the tube bank of the steam heat-exchanging of steam generator adopt up-down structure to arrange, the fluid mouth of pipe of overflow pipe can be received steam generator top (as shown in Figure 3), will be evenly distributed in through the solution that overflow pipe flows out in the steam heat-exchanging tube bank.
The cooling water flow path of unit is flow process in parallel (as Fig. 2, shown in Figure 3), also serial flow (as shown in Figure 4).
Solution transfer valve, steam transfer valve and tube connector thereof in cancellation Fig. 2, Fig. 3 and Fig. 4 unit, unit promptly becomes the hot-water direct-fired lithium bromide absorption type cold water unit (as shown in Figure 5) that is used for separate refrigeration.
Claims (2)
1. hot-water direct-fired lithium bromide absorption type hot and cold water unit, comprise Direct Fired High Pressure Generator (6), evaporimeter (22), absorber (1), hot water generator (15), steam generator (17), condenser (21), high-temperature heat exchanger (5), low temperature heat exchanger (3), solution pump (23), cryogenic fluid pump (24) and connect the pipeline and the valve of each parts, it is characterized in that:
The hot water heat-exchanging tube bundle (18) of described hot water generator (15) and the steam heat-exchanging of steam generator (17) tube bank (19) are arranged in the same cylindrical shell (20), be provided with demarcation strip (16) between described hot water heat-exchanging tube bundle (18) and the steam heat-exchanging tube bank (19), in hot water generator (15), be provided with overflow pipe (14), booster (4) is housed on the cryogenic fluid feed tube of described high-temperature heat exchanger (5);
The feed liquor mouth of pipe of described overflow pipe (14) is positioned at hot water generator (15) bottom, the fluid mouth of pipe of overflow pipe (14) is received on the steam generator (17), the hot water heat-exchanging tube bundle (18) of perhaps described hot water generator (15) and the steam heat-exchanging of steam generator (17) tube bank (19) is arranged in same simplified (20) with frame mode up and down, and the fluid mouth of pipe of described overflow pipe (14) is received in the steam generator (17).
2. a kind of hot-water direct-fired lithium bromide absorption type hot and cold water unit according to claim 1, it is characterized in that: the weak solution drain pipe of described low temperature heat exchanger (3) is received hot water generator (15) top as hot water generator feed tube (8), and the liquid feeding end that hot water generator drain pipe (9) is received high-temperature heat exchanger as the cryogenic fluid feed tube of high-temperature heat exchanger (5) covers; The intermediate solution drain pipe of high-temperature heat exchanger (5) is received steam generator (17) top as steam generator feed tube (13), and steam generator drain pipe (10) is the concentrated solution feed tube of low temperature heat exchanger (3); On the drain pipe occurred frequently (7) of Direct Fired High Pressure Generator (6) and the pipeline between the absorber (1), solution transfer valve (2) is housed; On the pipeline between refrigerant vapour pipe (11) and the evaporimeter (22), steam transfer valve (12) is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100280694A CN101526281B (en) | 2009-01-08 | 2009-01-08 | Hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100280694A CN101526281B (en) | 2009-01-08 | 2009-01-08 | Hot-water direct-fired lithium bromide absorption type cold water and cold-hot water unit |
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| CN101526281A CN101526281A (en) | 2009-09-09 |
| CN101526281B true CN101526281B (en) | 2010-07-28 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102434997A (en) * | 2011-11-20 | 2012-05-02 | 杨志军 | Biomass particle fuel direct-burning type lithium bromide cold-hot water machine set |
| CN102997496B (en) * | 2012-12-19 | 2014-11-12 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat |
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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: 20100910 |
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Effective date of registration: 20100910 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 |