CN203704429U - Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit - Google Patents
Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit Download PDFInfo
- Publication number
- CN203704429U CN203704429U CN201420030052.9U CN201420030052U CN203704429U CN 203704429 U CN203704429 U CN 203704429U CN 201420030052 U CN201420030052 U CN 201420030052U CN 203704429 U CN203704429 U CN 203704429U
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- China
- Prior art keywords
- pressure generator
- heat exchanger
- flue gas
- high pressure
- generator
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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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- Sorption Type Refrigeration Machines (AREA)
Abstract
The utility model relates to a flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit which comprises a high-pressure generator, an evaporator (1), an absorber (2), a composite-type low-pressure generator (20), a condenser (23), a high-temperature heat exchanger (6) and a low-temperature heat exchanger (5). The composite-type low-pressure generator (20) comprises a hot water generator (21) and a steam generator (22). A flue gas solution heat exchanger (36) is arranged in a waste heat flue gas outlet pipe (12) of the high-pressure generator, a dilute solution outlet pipe of the low-temperature heat exchanger (5) is used as a flue gas solution heat exchanger solution inlet pipe (34) to be connected to the flue gas solution heat exchanger (36), a flue gas solution heat exchanger solution outlet pipe (35) is used as a hot water generator solution inlet pipe (18) to be connected to the composite-type low-pressure generator (20), and a heat source hot water inlet pipe (9) is arranged on the composite-type low-pressure generator (20). The flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit can reduce the exhaust temperature of waste heat flue gas to a lower degree during refrigeration running and heating running.
Description
Technical field
The utility model relates to a kind of lithium-bromide absorption-type refrigerating machine.Belong to air conditioner technical field.
Background technology
The 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 fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit in the past.The compound low pressure generator 20 of two units is made up of hot water generator 21 and steam generator 22, is provided with booster 4 on hot water generator drain pipe 17, on the waste heat smoke outlet tube 12 of flue gas type high pressure generator 8, is provided with fume hot-water heat exchanger 10.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 lower (more than approximately 80 DEG C).When unit refrigerating operaton, utilize and in fume hot-water heat exchanger, carry out heat exchange from thermal source hot water and the low temperature exhaust heat flue gas of the external device (ED)s such as gas engine, reclaim low-temperature flue gas heat, waste heat smog discharge temperature can be reduced to approximately 120 DEG C.In Fig. 2 unit, dispose Direct Fired High Pressure Generator 31(and be called again fuel supplementing type high pressure generator), flue gas type high pressure generator 8 and Direct Fired High Pressure Generator are cascaded structure arranged in form, two centres occurred frequently are provided with solution cross over pipe 32 occurred frequently, the split type fuel supplementing type high pressure generator of the common composition of flue gas type high pressure generator 8, 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 30 and moves, 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 33 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 DEG C of left and right), when 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, when 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 DEG C, and waste heat flue gas heat recovery utilization rate when unit heat supply running is lower.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit is provided, and makes unit can the exhaust temperature of waste heat flue gas be dropped to lower in the time of refrigerating operaton and heat supply running.
The purpose of this utility model is achieved in that a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, comprise high pressure generator, evaporimeter, absorber, compound low pressure generator, condenser, high-temperature heat exchanger and low temperature heat exchanger, compound low pressure generator comprises hot water generator and steam generator, on the waste heat smoke outlet tube of 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 compound low pressure generator as hot water generator feed tube, thermal source hot water inlet pipe is arranged on compound low pressure generator.
The utility model fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit is provided with booster on hot water generator drain pipe.
The utility model fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, described high pressure generator is flue gas type high pressure generator.
The utility model fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, described high pressure generator comprises flue gas type high pressure generator and Direct Fired High Pressure Generator, or is the split type fuel supplementing type high pressure generator being made up of flue gas type high pressure generator, Direct Fired High Pressure Generator and solution cross over pipe occurred frequently.
The utility model fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, described high pressure generator is integral type fuel supplementing type high pressure generator.
The beneficial effects of the utility model are:
The utility model replaces the fume hot-water heat exchanger in fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit in the past with smoke solution heat exchanger, carry out heat exchange with the lower lithium-bromide solution of temperature and low-temperature flue gas, make unit can the exhaust temperature of waste heat flue gas be dropped to lower in the time of refrigerating operaton and heat supply running, waste heat flue gas heat is fully recycled, and comprehensive utilization of energy rate is further enhanced.
Brief description of the drawings
Fig. 1 is 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 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 the utility model fume hot-water single-double effect compound type lithium bromide absorption type refrigerating unit structure schematic diagram.
Fig. 4 is the utility model fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigerating unit structure schematic diagram, and fuel supplementing type high pressure generator is split type afterburning structure.
Fig. 5 is the utility model fume hot-water afterburning single-double effect compound type lithium bromide absorption type refrigerating unit structure schematic diagram, and fuel supplementing type high pressure generator is integral type afterburning structure.
Fig. 6 is the structural representation that the cooling water of the utility model fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit adopts serial flow.
Reference numeral in figure:
Evaporimeter 1, absorber 2, solution transfer valve 3, booster 4, low temperature heat exchanger 5, high-temperature heat exchanger 6, drain pipe 7 occurred frequently, flue gas type high pressure generator 8, thermal source hot water inlet pipe 9, fume hot-water heat exchanger 10, waste heat smoke discharge pipe 11, waste heat smoke outlet tube 12, hot water communicating pipe 13, waste heat flue gas inlet tube 14, refrigerant vapour pipe 15, steam transfer valve 16, hot water generator drain pipe 17, hot water generator feed tube 18, thermal source hot water outlet pipe 19, compound low pressure generator 20, hot water generator 21, steam generator 22, condenser 23, cooling water outlet pipe 24, cold (heat) water outlet pipe 25, cold (heat) water inlet pipe 26, solution pump 27, cryogenic fluid pump 28, cooling water inlet pipe 29, burner 30, Direct Fired High Pressure Generator 31, solution cross over pipe 32 occurred frequently, afterburning smoke outlet tube 33, smoke solution heat exchanger feed tube 34, smoke solution heat exchanger drain pipe 35, smoke solution heat exchanger 36, integral type fuel supplementing type high pressure generator 37.
Detailed description of the invention
The utility model is unit as shown in Figure 3, and this unit is by the pipeline of flue gas type high pressure generator 8, evaporimeter 1, absorber 2, compound low pressure generator 20, condenser 23, high-temperature heat exchanger 6, low temperature heat exchanger 5, solution pump 27, booster 4, cryogenic fluid pump 28, control system (not shown) and connecting components, fume hot-water single-double effect compound type lithium bromide absorption type hot and cold water unit that valve forms.Compound low pressure generator 20 is made up of hot water generator 21 and steam generator 22, on the waste heat smoke outlet tube 12 of flue gas type high pressure generator 8, is provided with smoke solution heat exchanger 36, and booster 4 is arranged on hot water generator drain pipe 17; The weak solution drain pipe of low temperature heat exchanger 5 is received on smoke solution heat exchanger 36 as smoke solution heat exchanger feed tube 34, and smoke solution heat exchanger drain pipe 35 is received on compound low pressure generator 20 as hot water generator feed tube 18; Thermal source hot water inlet pipe 9 is arranged on compound low pressure generator 20; On the pipeline between drain pipe 7 occurred frequently and absorber 2, solution transfer valve 3 is housed; On the pipeline between refrigerant vapour pipe 15 and evaporimeter 1, steam transfer valve 16 is housed.
Unit utilizes separately waste heat flue gas or utilizes waste heat flue gas and when hot water heating refrigerating operaton, solution transfer valve 3 and steam transfer valve 16 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 8 through waste heat flue gas inlet tube 14, and lithium-bromide solution, temperature wherein of heating is reduced to approximately 170 DEG C and enters smoke solution heat exchanger 36 through waste heat smoke outlet tube 12 after becoming low temperature exhaust heat flue gas; After being warming up to approximately 80 DEG C, low temperature heat exchanger 5 heat exchange enter smoke solution heat exchanger 36 through smoke solution heat exchanger feed tube 34 from the weak solution of output absorber 2 by solution pump 27, after heating up with the further heat exchange of low temperature exhaust heat flue gas through smoke solution heat exchanger drain pipe 35(hot water generator feed tube 18) enter hot water generator 21, the temperature of waste heat flue gas drops to after 100 DEG C and enters atmosphere through waste heat smoke discharge pipe 11.
When unit heat supply running, solution transfer valve 3 and steam transfer valve 16 are opened.High-temperature residual heat flue gas from external device (ED)s such as gas engines enters flue gas type high pressure generator 8 through waste heat flue gas inlet tube 14, and lithium-bromide solution, temperature wherein of heating is reduced to approximately 145 DEG C and enters smoke solution heat exchanger 36 through waste heat smoke outlet tube 12 after becoming low temperature exhaust heat flue gas; The weak solution (temperature is about 95 DEG C) of being exported from absorber 2 by solution pump 27 enters smoke solution heat exchanger 36 through low temperature heat exchanger 5, smoke solution heat exchanger feed tube 34, after heating up with low temperature exhaust heat flue gas heat exchange through smoke solution heat exchanger drain pipe 35(hot water generator feed tube 18) enter hot water generator 21, deliver into flue gas type high pressure generator 8 by booster 4 again, the temperature of waste heat flue gas drops to after 115 DEG C and enters atmosphere through waste heat smoke discharge pipe 11.
In unit shown in Fig. 3, set up Direct Fired High Pressure Generator 31 and solution cross over pipe 32 occurred frequently, this unit becomes the 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 8 in unit shown in integral type fuel supplementing type high pressure generator 37 alternate figures 3, this unit becomes the 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 (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 fume hot-water (afterburning) the single-double effect compound type lithium bromide absorption type handpiece Water Chilling Units for separate refrigeration.
Claims (6)
1. a fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit, comprise high pressure generator, evaporimeter (1), absorber (2), compound low pressure generator (20), condenser (23), high-temperature heat exchanger (6) and low temperature heat exchanger (5), compound low pressure generator (20) comprises hot water generator (21) and steam generator (22), it is characterized in that: on the waste heat smoke outlet tube (12) of high pressure generator, be provided with smoke solution heat exchanger (36), the weak solution drain pipe of low temperature heat exchanger (5) is received on smoke solution heat exchanger (36) as smoke solution heat exchanger feed tube (34), smoke solution heat exchanger drain pipe (35) is received on compound low pressure generator (20) as hot water generator feed tube (18), thermal source hot water inlet pipe (9) is arranged on compound low pressure generator (20).
2. a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1, is characterized in that: on hot water generator drain pipe (17), be provided with booster (4).
3. a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1 and 2, is characterized in that: described high pressure generator is flue gas type high pressure generator (8).
4. a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1 and 2, it is characterized in that: described high pressure generator comprises flue gas type high pressure generator (8) and Direct Fired High Pressure Generator (31), or be the split type fuel supplementing type high pressure generator being formed by flue gas type high pressure generator (8), Direct Fired High Pressure Generator (31) and solution cross over pipe occurred frequently (32).
5. a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1 and 2, is characterized in that: described high pressure generator is integral type fuel supplementing type high pressure generator (37).
6. a kind of fume hot-water single-double effect compound type lithium bromide absorption type refrigeration unit according to claim 1 and 2, is characterized in that: the cooling water flow path of described unit is parallel-connection flow or serial flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030052.9U CN203704429U (en) | 2014-01-18 | 2014-01-18 | Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420030052.9U CN203704429U (en) | 2014-01-18 | 2014-01-18 | Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203704429U true CN203704429U (en) | 2014-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420030052.9U Withdrawn - After Issue CN203704429U (en) | 2014-01-18 | 2014-01-18 | Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203704429U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2014
- 2014-01-18 CN CN201420030052.9U patent/CN203704429U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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 |
Granted publication date: 20140709 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |