CN103759467A - Two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit - Google Patents
Two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit Download PDFInfo
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- CN103759467A CN103759467A CN201410021931.XA CN201410021931A CN103759467A CN 103759467 A CN103759467 A CN 103759467A CN 201410021931 A CN201410021931 A CN 201410021931A CN 103759467 A CN103759467 A CN 103759467A
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- heat exchanger
- high pressure
- pressure generator
- smoke
- 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
- 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
- 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
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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- Sorption Type Refrigeration Machines (AREA)
Abstract
The invention relates to a two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit which comprises a high pressure generator, an evaporator, an absorber, a steam generator (17), a hot water generator (18), a condenser, a high-temperature heat exchanger (5), a low-temperature heat exchanger (4) and a single-effect heat exchanger (21). A smoke solution heat exchanger (37) is disposed on the waste heat smoke outlet pipe (8) of the smoke high pressure generator (7). The dilute solution outlet pipe of the low-temperature heat exchanger (4) serves as a smoke solution heat exchanger liquid inlet pipe (35) and is connected to the smoke solution heat exchanger (37). A smoke solution heat exchanger liquid outlet pipe (36) is connected to the high-temperature heat exchanger (5). A heat source hot water inlet pipe (11) is arranged on the hot water generator (18). The two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit is capable of lowering the waste heat smoke discharge temperature during refrigerating operation and heating operation of the unit.
Description
Technical field
The present invention relates to a kind of lithium-bromide absorption-type refrigerating machine.Belong to air conditioner technical field.
Background technology
The two-period form fume hot-water single-double effect compound type lithium bromide absorption type hot and cold water unit as depicted in figs. 1 and 2 of a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit in the past.The evaporimeter of two units comprises single effect evaporator 24 and double effect evaporator 1, absorber comprises single-action absorber 26 and economic benefits and social benefits absorber 2, condenser comprises single-action condenser 19 and economic benefits and social benefits condenser device 16, solution pump comprises single-action solution pump 29 and economic benefits and social benefits solution pump 28, on the waste heat smoke outlet tube 8 of flue gas type high pressure generator 7, is provided with fume hot-water heat exchanger 9.This unit energy utilizes the high-temperature residual heat flue gas of external device (ED) discharge and waste heat hot water (being called again thermal source hot water) to drive refrigerating operaton simultaneously, utilize separately high-temperature residual heat flue gas to drive refrigeration and heating operation, be mainly used in the Distribution of Natural formula energy supplying system of thermal source hot water backwater temperature very low (generally lower than 80 ℃).During unit refrigerating operaton, utilize thermal source hot water and low temperature exhaust heat flue gas from external device (ED)s such as gas engines in fume hot-water heat exchanger, to carry out heat exchange, reclaim low-temperature flue gas heat, waste heat smog discharge temperature can be reduced to approximately 120 ℃.In Fig. 2 unit, dispose Direct Fired High Pressure Generator 32(and be called again fuel supplementing type high pressure generator), flue gas type high pressure generator and Direct Fired High Pressure Generator are cascaded structure arranged in form, two centres occurred frequently are provided with solution cross over pipe 33 occurred frequently, the split type fuel supplementing type high pressure generator of the common composition of flue gas type high pressure generator, Direct Fired High Pressure Generator and solution cross over pipe three occurred frequently.The waste heat flue gas heat providing when external device (ED) and hot water heat sum are less than unit cooling (heat supply) and load required while adding heat, the control system of unit starts burner 31 operations, for unit provides supplementary heating amount, to meet cooling (heat supply) demand, the flue gas that combustion fuel produces enters atmosphere through afterburning smoke outlet tube 34 and external chimney (not shown) thereof.But there is following weak point in this unit:
1, because of the thermal source hot water temperature from external device (ED)s such as gas engines higher (generally 95 ℃ of left and right), during unit refrigerating operaton, be difficult to waste heat smog discharge temperature to drop to lower, waste heat flue gas heat is not fully recycled.
2, during unit heat supply running, thermal source hot water is generally through external heat exchanger heat exchange, and not into and out of unit, waste heat smog discharge temperature can only be reduced to approximately 145 ℃, and waste heat flue gas heat recovery utilization rate during unit heat supply running is lower.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit is provided, make unit can the exhaust temperature of waste heat flue gas be dropped to lower when refrigerating operaton and heat supply running.
The object of the present invention is achieved like this:, a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, comprise high pressure generator, evaporimeter, absorber, steam generator, hot water generator, condenser, high-temperature heat exchanger, low temperature heat exchanger and single-action heat exchanger, described evaporimeter comprises single effect evaporator and double effect evaporator, absorber comprises single-action absorber and economic benefits and social benefits absorber, condenser comprises single-action condenser and purpose double-action condenser, on the waste heat smoke outlet tube of flue gas type high pressure generator, be provided with smoke solution heat exchanger, the weak solution drain pipe of low temperature heat exchanger is received on smoke solution heat exchanger as smoke solution heat exchanger feed tube, smoke solution heat exchanger drain pipe is received on high-temperature heat exchanger, thermal source hot water inlet pipe be arranged on hot water generator.
Two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, described high pressure generator is flue gas type high pressure generator.
Two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, described high pressure generator comprises flue gas type high pressure generator and Direct Fired High Pressure Generator, or described high pressure generator is the split type fuel supplementing type high pressure generator being comprised of flue gas type high pressure generator, Direct Fired High Pressure Generator and solution cross over pipe occurred frequently.
Two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention, described high pressure generator is integral type fuel supplementing type high pressure generator.
The invention has the beneficial effects as follows:
The present invention replaces the fume hot-water heat exchanger in two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit in the past with smoke solution heat exchanger, with the lower lithium-bromide solution of temperature and low-temperature flue gas, carry out heat exchange, make unit can the exhaust temperature of waste heat flue gas be dropped to lower when refrigerating operaton and heat supply running, waste heat flue gas heat is fully recycled, and comprehensive utilization of energy rate is further enhanced.
Accompanying drawing explanation
Fig. 1 is two-period form fume hot-water single-double effect compound type lithium bromide absorption type hot and cold water unit structural representation in the past.
Fig. 2 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit structural representation in the past.
Fig. 3 is two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigerating unit structure schematic diagram of the present invention.
Fig. 4 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigerating unit structure schematic diagram of the present invention, and fuel supplementing type high pressure generator is split type afterburning structure.
Fig. 5 is two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigerating unit structure schematic diagram of the present invention, and fuel supplementing type high pressure generator is integral type afterburning structure.
Fig. 6 is the single-action absorber of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit of the present invention and the structural representation that economic benefits and social benefits absorber cooling water adopts serial flow.
Reference numeral in figure:
The specific embodiment
The present invention is unit as shown in Figure 3, and this unit is by flue gas type high pressure generator 7, evaporimeter, absorber, steam generator 17, hot water generator 18, condenser, high-temperature heat exchanger 5, low temperature heat exchanger 4, single-action heat exchanger 21, single-action solution pump 29, economic benefits and social benefits solution pump 28, cryogenic fluid pump 27, the pipeline of control system (not shown) and connecting components, the two-period form fume hot-water single-double effect compound type lithium bromide absorption type hot and cold water unit that valve forms, evaporimeter comprises single effect evaporator 24 and double effect evaporator 1, absorber comprises single-action absorber 26 and economic benefits and social benefits absorber 2, condenser comprises single-action condenser 19 and purpose double-action condenser 16, on the waste heat smoke outlet tube 8 of flue gas type high pressure generator 7, be provided with smoke solution heat exchanger 37, the weak solution drain pipe of low temperature heat exchanger 4 is received on smoke solution heat exchanger 37 as smoke solution heat exchanger feed tube 35, smoke solution heat exchanger drain pipe 36 is received on high-temperature heat exchanger 5, and thermal source hot water inlet pipe 11 is arranged on hot water generator 18, on the pipeline between drain pipe 6 occurred frequently and economic benefits and social benefits absorber 2, solution transfer valve 3 is housed, on the pipeline between refrigerant vapour pipe 14 and double effect evaporator 1, steam transfer valve 15 is housed.
Unit utilizes separately waste heat flue gas or utilizes waste heat flue gas and during hot water heating refrigerating operaton, solution transfer valve 3 and steam transfer valve 15 are closed simultaneously.High-temperature residual heat flue gas from external device (ED)s such as gas engines enters flue gas type high pressure generator 7 through waste heat flue gas inlet tube 12, and lithium-bromide solution, temperature wherein of heating is reduced to approximately 170 ℃ to be become low temperature exhaust heat flue gas and enter smoke solution heat exchanger 37 by waste heat smoke outlet tube 8; The weak solution of being exported from economic benefits and social benefits absorber 2 by economic benefits and social benefits solution pump 28 is warming up to approximately 80 ℃ through low temperature heat exchanger 4 heat exchange and enters smoke solution heat exchanger 37 by smoke solution heat exchanger feed tube 35, heat up and enter high-temperature heat exchanger 5 by smoke solution heat exchanger drain pipe 36 with the further heat exchange of low temperature exhaust heat flue gas, the temperature of waste heat flue gas drops to lower than 100 ℃ and enters atmosphere by waste heat smoke discharge pipe 10.
During unit heat supply running, solution transfer valve 3 and steam transfer valve 15 are opened, cryogenic fluid pump 27 and 29 stalls of single-action solution pump.High-temperature residual heat flue gas from external device (ED)s such as gas engines enters flue gas type high pressure generator 7 through waste heat flue gas inlet tube 12, and lithium-bromide solution, temperature wherein of heating is reduced to approximately 145 ℃ to be become low temperature exhaust heat flue gas and enter smoke solution heat exchanger 37 by waste heat smoke outlet tube 8; The weak solution of being exported from economic benefits and social benefits absorber 2 by economic benefits and social benefits solution pump 28 (temperature is about 95 ℃) enters smoke solution heat exchanger 37 through low temperature heat exchanger 4, smoke solution heat exchanger feed tube 35, heat up and enter high-temperature heat exchanger 5 by smoke solution heat exchanger drain pipe 36 with low temperature exhaust heat flue gas heat exchange, the temperature of waste heat flue gas drops to lower than 115 ℃ and enters atmosphere by waste heat smoke discharge pipe 10.
In unit shown in Fig. 3, set up Direct Fired High Pressure Generator 32 and solution cross over pipe 33 occurred frequently, this unit becomes the two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit shown in Fig. 4.
With the flue gas type high pressure generator 7 in unit shown in integral type fuel supplementing type high pressure generator 38 alternate figures 3, this unit becomes the two-period form fume hot-water afterburning single-double effect compound type lithium bromide absorption type hot and cold water unit shown in Fig. 5.
But the cooling water flow path parallel-connection flow of unit single-action absorber and economic benefits and social benefits absorber (as shown in Fig. 3, Fig. 4, Fig. 5), also serial flow (as shown in Figure 6).
Cancel solution transfer valve, steam transfer valve and tube connector thereof in unit shown in Fig. 3～Fig. 6, unit becomes two-period form fume hot-water (afterburning) the single-double effect compound type lithium bromide absorption type handpiece Water Chilling Units for separate refrigeration.
Claims (5)
1. a two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, comprise high pressure generator, evaporimeter, absorber, steam generator (17), hot water generator (18), condenser, high-temperature heat exchanger (5), low temperature heat exchanger (4) and single-action heat exchanger (21), described evaporimeter comprises single effect evaporator (24) and double effect evaporator (1), absorber comprises single-action absorber (26) and economic benefits and social benefits absorber (2), condenser comprises single-action condenser (19) and purpose double-action condenser (16), it is characterized in that: on the waste heat smoke outlet tube (8) of flue gas type high pressure generator (7), be provided with smoke solution heat exchanger (37), the weak solution drain pipe of low temperature heat exchanger (4) is received on smoke solution heat exchanger (37) as smoke solution heat exchanger feed tube (35), smoke solution heat exchanger drain pipe (36) is received on high-temperature heat exchanger (5), thermal source hot water inlet pipe (11) is arranged on hot water generator (18).
2. a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1, is characterized in that: described high pressure generator is flue gas type high pressure generator (7).
3. a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1, it is characterized in that: described high pressure generator comprises flue gas type high pressure generator (7) and Direct Fired High Pressure Generator (32), or described high pressure generator is the split type fuel supplementing type high pressure generator being comprised of flue gas type high pressure generator (7), Direct Fired High Pressure Generator (32) and solution cross over pipe occurred frequently (33).
4. a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1, is characterized in that: described high pressure generator is integral type fuel supplementing type high pressure generator (38).
5. a kind of two-period form fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1, is characterized in that: the single-action absorber (26) of described unit and economic benefits and social benefits absorber (2) cooling water flow path are parallel-connection flow or serial flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410021931.XA CN103759467A (en) | 2014-01-18 | 2014-01-18 | Two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit |
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| CN201410021931.XA CN103759467A (en) | 2014-01-18 | 2014-01-18 | Two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit |
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| CN201410021931.XA Pending CN103759467A (en) | 2014-01-18 | 2014-01-18 | Two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953459A (en) * | 2016-06-22 | 2016-09-21 | 烟台荏原空调设备有限公司 | Single and double effect compound type absorption refrigerating unit |
| CN108489138A (en) * | 2018-04-25 | 2018-09-04 | 双良节能***股份有限公司 | Direct combustion single-effect lithiumbromide absorption type heat pump assembly with flue gas heat-exchange unit |
| CN108518887A (en) * | 2018-04-25 | 2018-09-11 | 双良节能***股份有限公司 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
| CN112460832A (en) * | 2020-09-09 | 2021-03-09 | 国网综合能源服务集团有限公司 | Lithium bromide refrigerating unit based on gas comprehensive energy station and operation method of refrigerating unit |
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| CN201844606U (en) * | 2010-11-01 | 2011-05-25 | 双良节能***股份有限公司 | Novel high-efficiency and direct-fired lithium bromide absorption-type water heater/chiller |
| CN102914081A (en) * | 2012-10-27 | 2013-02-06 | 双良节能***股份有限公司 | Two-section flue gas hot-water single/double-effect composite lithium bromide absorption type refrigerating unit |
| CN202915597U (en) * | 2012-10-27 | 2013-05-01 | 双良节能***股份有限公司 | Two-section flue gas hot-water single-effect and double-effect composite lithium bromide absorption type refrigerating unit |
| CN202973646U (en) * | 2012-12-06 | 2013-06-05 | 双良节能***股份有限公司 | Flue gas hot water afterburning single/double-effect composite lithium bromide absorption refrigerating unit |
| CN203011002U (en) * | 2012-12-19 | 2013-06-19 | 双良节能***股份有限公司 | Direct-fired lithium bromide absorption type heating and refrigerating unit with smoke valve and used for recovering smoke waste heat |
| CN203704442U (en) * | 2014-01-18 | 2014-07-09 | 双良节能***股份有限公司 | Two-section type flue gas hot water single effect and double effect lithium bromide absorption type water chilling unit |
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Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1503156B1 (en) * | 2003-07-23 | 2006-06-21 | Yue Zhang | Absorption-type air conditioner system |
| CN1635315A (en) * | 2004-12-31 | 2005-07-06 | 江苏双良空调设备股份有限公司 | Lithium bromide absorption refrigerating machine with generator refrigerant vapour regulating and antifreezing installation |
| CN201844606U (en) * | 2010-11-01 | 2011-05-25 | 双良节能***股份有限公司 | Novel high-efficiency and direct-fired lithium bromide absorption-type water heater/chiller |
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| CN202915597U (en) * | 2012-10-27 | 2013-05-01 | 双良节能***股份有限公司 | Two-section flue gas hot-water single-effect and double-effect composite lithium bromide absorption type refrigerating unit |
| CN202973646U (en) * | 2012-12-06 | 2013-06-05 | 双良节能***股份有限公司 | Flue gas hot water afterburning single/double-effect composite lithium bromide absorption refrigerating unit |
| CN203011002U (en) * | 2012-12-19 | 2013-06-19 | 双良节能***股份有限公司 | Direct-fired lithium bromide absorption type heating and refrigerating unit with smoke valve and used for recovering smoke waste heat |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105953459A (en) * | 2016-06-22 | 2016-09-21 | 烟台荏原空调设备有限公司 | Single and double effect compound type absorption refrigerating unit |
| CN108489138A (en) * | 2018-04-25 | 2018-09-04 | 双良节能***股份有限公司 | Direct combustion single-effect lithiumbromide absorption type heat pump assembly with flue gas heat-exchange unit |
| CN108518887A (en) * | 2018-04-25 | 2018-09-11 | 双良节能***股份有限公司 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
| CN112460832A (en) * | 2020-09-09 | 2021-03-09 | 国网综合能源服务集团有限公司 | Lithium bromide refrigerating unit based on gas comprehensive energy station and operation method of refrigerating unit |
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Application publication date: 20140430 |