CN108518887A - Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit - Google Patents
Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit Download PDFInfo
- Publication number
- CN108518887A CN108518887A CN201810378153.8A CN201810378153A CN108518887A CN 108518887 A CN108518887 A CN 108518887A CN 201810378153 A CN201810378153 A CN 201810378153A CN 108518887 A CN108518887 A CN 108518887A
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- Prior art keywords
- flue gas
- exchange unit
- gas heat
- heat
- unit
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
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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
-
- 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 kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit, including evaporator, absorber, Direct Fired High Pressure Generator, low pressure generator, condenser, high-temperature heat exchanger, low temperature heat exchanger, solution pump and cryogenic fluid pump, flue gas heat-exchange unit is provided on the smoke exhaust pipe of unit or in external chimney.When unit operation, low-temperature flue gas heat is recycled with flue gas heat-exchange unit, reduces exhaust gas temperature, improves unit performance coefficient COP.
Description
Technical field
The present invention relates to a kind of suction-type lithium bromide thermal power plant unit more particularly to a kind of direct combustion economic benefits and social benefits with flue gas heat-exchange unit
Type lithium bromide absorption type heat pump unit.Belong to air conditioner technical field.
Background technology
A kind of previous direct combustion dual effect type lithium bromide absorption type heat pump unit as shown in Figure 1, the unit by evaporator 1, inhale
Receive device 2, Direct Fired High Pressure Generator 8, low pressure generator 12, condenser 13, high-temperature heat exchanger 6, low temperature heat exchanger 4, molten
Liquid pump 18, cryogenic fluid pump 19, control system（It is not shown in figure）And pipeline, the valve of connecting components are constituted.When unit operation, with
8 matched burner of Direct Fired High Pressure Generator, 7 burning fuel（Combustion gas, fuel oil）The heat of generation as compensation thermal energy, recycle into
Go out the waste heat source the heat of hot water of evaporator 1, technique use or heat supplication and consumption water of the temperature higher than waste heat source hot water temperature be externally provided,
It is mainly used in while having the place of low-temperature heat source and medium temperature heat demand.The exhaust gas temperature of this unit is on 170 DEG C of left sides
The right side, low-temperature flue gas waste heat are not recycled utilization.
Invention content
The purpose of the present invention is to overcome the above shortcomings and to provide a kind of, and the direct combustion dual effect type lithium bromide with flue gas heat-exchange unit is inhaled
Receipts formula heat pump unit recycles low-temperature flue gas heat and is used for heat supply, exhaust gas temperature is reduced to≤80 DEG C, the performance demands of unit
Number COP can be improved 2% or more.
The object of the present invention is achieved like this：A kind of direct combustion dual effect type lithium bromide absorption type heat pump with flue gas heat-exchange unit
Unit, including evaporator, absorber, Direct Fired High Pressure Generator, low pressure generator, condenser, high-temperature heat exchanger, Low Temperature Thermal
Exchanger, solution pump and cryogenic fluid pump are provided with flue gas heat-exchange unit on the smoke exhaust pipe of unit or in external chimney.Unit operation
When, low-temperature flue gas heat is recycled with flue gas heat-exchange unit, reduces exhaust gas temperature, improves unit performance coefficient COP.
Further, the flue gas heat-exchange unit is smoke solution heat exchanger.The flue gas heat-exchange unit of the flue gas heat-exchange unit into
Liquid pipe is connected on solution pump discharge pipe or is connected on weak solution cross over pipe.
Further, the flue gas heat-exchange unit is fume hot-water heat exchanger.The flue gas heat-exchange unit of the flue gas heat-exchange unit into
Water pipe is connected to hot water inlet pipe above or on hot water cross over pipe.
The beneficial effects of the invention are as follows：
Smoke solution heat exchanger or fume hot-water heat exchanger, unit are provided on the smoke exhaust pipe of unit of the present invention or in external chimney
When operation, the flue gas for going out about 170 DEG C of Direct Fired High Pressure Generator, temperature enters flue gas heat-exchange unit, by disengaging flue gas heat-exchange unit
Solution or hot water are discharged into air after cooling, solution or hot water enter follow-up work flow after absorbing flue gas heat heating, can
The heating amount of Direct Fired High Pressure Generator is reduced, unit COP is improved.
Description of the drawings
Fig. 1 is previous direct combustion dual effect type lithium bromide absorption type heat pump set structure schematic diagram.
Fig. 2 is that direct combustion dual effect type lithium bromide absorption type heat pump train embodiments 1 structure of the invention with flue gas heat-exchange unit is shown
It is intended to.
Fig. 3 is that direct combustion dual effect type lithium bromide absorption type heat pump train embodiments 2 structure of the invention with flue gas heat-exchange unit is shown
It is intended to.
Fig. 4 is that direct combustion dual effect type lithium bromide absorption type heat pump train embodiments 3 structure of the invention with flue gas heat-exchange unit is shown
It is intended to.
Fig. 5 is that direct combustion dual effect type lithium bromide absorption type heat pump train embodiments 4 structure of the invention with flue gas heat-exchange unit is shown
It is intended to.
Fig. 6 is that direct combustion dual effect type lithium bromide absorption type heat pump train embodiments 5 structure of the invention with flue gas heat-exchange unit is shown
It is intended to.
Reference numeral in figure：
Evaporator 1, absorber 2, solution pump discharge pipe 3, low temperature heat exchanger 4, heat exchanger weak solution union 5, high warm are handed over
Parallel operation 6, burner 7, Direct Fired High Pressure Generator 8, inlet tube occurred frequently 9, smoke exhaust pipe 10, refrigerant vapour pipe 11, low pressure generator
12, condenser 13, hot water outlet pipe 14, hot water cross over pipe 15, waste heat water outlet pipe 16, remaining hot water inlet tube 17, solution pump 18,
Cryogenic fluid pump 19, hot water inlet pipe 20, flue gas heat-exchange unit inlet tube 21, flue gas heat-exchange unit 22, flue gas heat-exchange unit outlet tube 23, flue gas
Heat exchanger water inlet pipe 24, flue gas heat-exchange unit outlet pipe 25.
Specific implementation mode
For ease of more fully understanding the present invention, it is illustrated by the following examples, these examples belong to the protection of the present invention
Range, but do not limit the scope of the invention.
Embodiment 1：
Present invention unit as shown in Figure 2, flue gas heat-exchange unit are smoke solution heat exchanger, and flue gas heat-exchange unit inlet tube is connected to solution pump
On outlet, hot water flow is positive serial flow.
The unit is by evaporator 1, absorber 2, Direct Fired High Pressure Generator 8, low pressure generator 12, condenser 13, height
Temperature heat exchanger 6, low temperature heat exchanger 4, solution pump 18, cryogenic fluid pump 19, control system（It is not shown in figure）And connecting components
Pipeline, the direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit that is constituted of valve, direct combustion type high pressure occurs
It is provided with refrigerant vapour pipe 11 between device 8 and low pressure generator 12, is arranged between high-temperature heat exchanger 6 and low temperature heat exchanger 4
There is heat exchanger weak solution cross over pipe 5, inlet tube occurred frequently is provided between high-temperature heat exchanger 6 and Direct Fired High Pressure Generator 8
9, solution pump discharge pipe 3, the smoke exhaust pipe 10 of Direct Fired High Pressure Generator 8 are provided between low temperature heat exchanger 4 and solution pump 18
On be provided with flue gas heat-exchange unit 22, which is smoke solution heat exchanger, and flue gas heat-exchange unit inlet tube 21 is connected to
On solution pump discharge pipe 3, flue gas heat-exchange unit outlet tube 23 is connected on inlet tube 9 occurred frequently, and hot water outlet pipe 14 is connected to condenser 13
On, hot water inlet pipe 20 is connected on absorber 2.
When unit operation, the weak solution that solution pump 18 conveys divides two-way, all the way successively through low temperature heat exchanger 4 and high temperature heat exchange
After the heat exchange heating of device 6, enter Direct Fired High Pressure Generator 8 through inlet tube 9 occurred frequently.Another way through flue gas heat-exchange unit inlet tube 21 into
Enter flue gas heat-exchange unit 22, heat exchange, flue-gas temperature are carried out with the flue gas for entering flue gas heat-exchange unit 22 from Direct Fired High Pressure Generator 8
It is discharged into air after being reduced to≤80 DEG C, weak solution recycles after the heating of low-temperature flue gas heat through flue gas heat-exchange unit outlet tube 23, occurred frequently
Inlet tube 9 reduces burner into Direct Fired High Pressure Generator 8 to reduce heating amount needed for Direct Fired High Pressure Generator 8
7 fuel consumption improves unit COP.
Embodiment 2：
Shown in Figure 3, flue gas heat-exchange unit is smoke solution heat exchanger, and flue gas heat-exchange unit inlet tube is connected to heat exchanger weak solution
In union, hot water flow is positive serial flow.
The flue gas heat-exchange unit inlet tube 21 of unit shown in Fig. 2 is connected in heat exchanger weak solution union 5, unit becomes
Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit shown in Fig. 3.
Embodiment 3：
Shown in Figure 4, flue gas heat-exchange unit is smoke solution heat exchanger, and flue gas heat-exchange unit inlet tube is connected to solution pump discharge pipe
On, hot water flow is serial flow.
The hot water outlet pipe 14 of unit described in Fig. 2 is connected on absorber 2, hot water inlet pipe 20 is connected on condenser 13,
Unit becomes the direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit shown in Fig. 4.
Embodiment 4：
Referring to Fig. 5, flue gas heat-exchange unit is fume hot-water heat exchanger, and flue gas heat-exchange unit water inlet pipe is connected on hot water inlet pipe, flue gas
Heat exchanger outlet pipe is connected on hot water cross over pipe.
Fume hot-water heat exchanger, flue gas heat-exchange unit water inlet pipe 24 is used to connect the flue gas heat-exchange unit 22 of unit shown in Fig. 2
Onto hot water inlet pipe 20, flue gas heat-exchange unit outlet pipe 25 is connected on hot water cross over pipe 15, and unit becomes band flue gas shown in Fig. 5
The direct combustion dual effect type lithium bromide absorption type heat pump unit of heat exchanger, hot water outlet pipe 14 are connected on condenser 13, hot water inlet pipe
20 are connected on absorber 2, and hot water flow is positive serial flow.When unit operation, the hot water of unit is entered through hot water inlet pipe 20
Divide two-way, enters absorber 2 all the way.Another way enters flue gas heat-exchange unit 22 through flue gas heat-exchange unit water inlet pipe 24, and from direct combustion type
The flue gas that high pressure generator 8 enters flue gas heat-exchange unit 22 carries out heat exchange, and flue-gas temperature is discharged into air after being reduced to≤80 DEG C, heat
Water recycles enters condenser 13 after low-temperature flue gas heat heats up through flue gas heat-exchange unit outlet pipe 25 and hot water cross over pipe 15, to subtract
Heating amount needed for few Direct Fired High Pressure Generator 8, that is, reduce the fuel consumption of burner 7, improves unit COP.
Embodiment 5：
Referring to Fig. 6, flue gas heat-exchange unit is fume hot-water heat exchanger, and flue gas heat-exchange unit water inlet pipe is connected to hot water inlet pipe, and flue gas changes
Hot device outlet pipe is connected on hot water outlet pipe.
The flue gas heat-exchange unit outlet pipe 25 of unit shown in Fig. 5 is connected on hot water outlet pipe 14, unit becomes shown in Fig. 6
Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit.
The above content is it cannot be assumed that present invention specific implementation is confined to these explanations, for the technical field of the invention
Those of ordinary skill for, under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all answers
When being considered as belonging to present invention scope of patent protection determined by the appended claims.
Claims (7)
1. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit, including evaporator（1）, absorber
（2）, Direct Fired High Pressure Generator（8）, low pressure generator（12）, condenser（13）, high-temperature heat exchanger（6）, low temperature heat exchange
Device（4）, solution pump（18）And cryogenic fluid pump（19）, condenser（13）And absorber（2）Between be provided with hot water communicating pipe（15）, high
Temperature heat exchanger（6）And low temperature heat exchanger（4）Between be provided with heat exchanger weak solution cross over pipe（5）, high-temperature heat exchanger
（6）And Direct Fired High Pressure Generator（8）Between be provided with inlet tube occurred frequently（9）, low temperature heat exchanger（4）And solution pump（18）It
Between be provided with solution pump discharge pipe（3）；It is characterized in that：Direct Fired High Pressure Generator（8）Smoke exhaust pipe（10）On be provided with cigarette
Gas heat exchanger（22）.
2. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit according to claim 1,
It is characterized in that：The flue gas heat-exchange unit（22）For smoke solution heat exchanger.
3. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit according to claim 1,
It is characterized in that：The flue gas heat-exchange unit（22）For fume hot-water heat exchanger.
4. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit according to claim 2,
It is characterized in that：The flue gas heat-exchange unit（22）Flue gas heat-exchange unit inlet tube（21）It is connected to solution pump discharge pipe（3）On.
5. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit according to claim 2,
It is characterized in that：The flue gas heat-exchange unit（22）Flue gas heat-exchange unit inlet tube（21）It is connected to weak solution cross over pipe（5）On.
6. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit according to claim 3,
It is characterized in that：The flue gas heat-exchange unit（22）Flue gas heat-exchange unit water inlet pipe（24）It is connected to hot water inlet pipe（20）On.
7. a kind of direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit according to claim 3,
It is characterized in that：The flue gas heat-exchange unit（22）Flue gas heat-exchange unit water inlet pipe（24）It is connected to hot water cross over pipe（15）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378153.8A CN108518887A (en) | 2018-04-25 | 2018-04-25 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810378153.8A CN108518887A (en) | 2018-04-25 | 2018-04-25 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
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| CN108518887A true CN108518887A (en) | 2018-09-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810378153.8A Pending CN108518887A (en) | 2018-04-25 | 2018-04-25 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307665A (en) * | 2019-07-09 | 2019-10-08 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold water, heat pump unit |
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| CN105423592A (en) * | 2015-12-23 | 2016-03-23 | 双良节能系统股份有限公司 | Double-working-condition direct-fired double-effect type lithium bromide absorption type heat pump set |
| CN208154865U (en) * | 2018-04-25 | 2018-11-27 | 双良节能系统股份有限公司 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
-
2018
- 2018-04-25 CN CN201810378153.8A patent/CN108518887A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103759467A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Two-section smoke hot water single-dual effect composite lithium bromide absorption refrigerating unit |
| CN103759460A (en) * | 2014-01-18 | 2014-04-30 | 双良节能系统股份有限公司 | Two-section smoke hot water single-dual effect composite lithium bromide absorption water chilling unit |
| CN203704429U (en) * | 2014-01-18 | 2014-07-09 | 双良节能系统股份有限公司 | Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption refrigeration unit |
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| CN208154865U (en) * | 2018-04-25 | 2018-11-27 | 双良节能系统股份有限公司 | Direct combustion dual effect type lithium bromide absorption type heat pump unit with flue gas heat-exchange unit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307665A (en) * | 2019-07-09 | 2019-10-08 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold water, heat pump unit |
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