CN110173923A - A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration - Google Patents
A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration Download PDFInfo
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- CN110173923A CN110173923A CN201910526845.7A CN201910526845A CN110173923A CN 110173923 A CN110173923 A CN 110173923A CN 201910526845 A CN201910526845 A CN 201910526845A CN 110173923 A CN110173923 A CN 110173923A
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- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 50
- 238000005057 refrigeration Methods 0.000 title claims abstract description 35
- 238000010438 heat treatment Methods 0.000 title claims abstract description 26
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 21
- 239000006096 absorbing agent Substances 0.000 claims abstract description 36
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000012530 fluid Substances 0.000 claims abstract description 13
- 230000009977 dual effect Effects 0.000 claims abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 239000003507 refrigerant Substances 0.000 claims description 19
- 239000000498 cooling water Substances 0.000 claims description 13
- 230000005494 condensation Effects 0.000 description 5
- 238000009833 condensation Methods 0.000 description 5
- 238000001704 evaporation Methods 0.000 description 5
- 230000008020 evaporation Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 239000002918 waste heat Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000010025 steaming Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- -1 heat exchanger I31 Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
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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
- 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
-
- 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
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
-
- 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
- F25B41/40—Fluid line arrangements
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Sorption Type Refrigeration Machines (AREA)
Abstract
The present invention relates to a kind of two-period form lithium bromide absorption type heat pump units of single-action heating double-effect refrigeration, belong to technical field of refrigeration equipment.The unit includes steam generator I, condenser I, evaporator I, absorber I, heat exchanger I, solution pump I, cryogenic fluid pump I, steam generator II, low pressure generator, condenser II, evaporator II, absorber II, heat exchanger II, solution pump II, cryogenic fluid pump II, shut-off valve A, shut-off valve B.A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration of the invention is by valve transfer, and when winter operation heating condition, unit is by the operation of two-period form heat pump principle；When summer operation cooling condition, unit is run by steam double-effect type solution parallel connection cooling flow.Meanwhile the coefficient of performance of refrigerating of dual-effect refrigeration greatly improves, and saves steam consumption, dual-use reduces investment of equipment, saves space occupied.
Description
Technical field
The present invention relates to a kind of two-period form lithium bromide absorption type heat pump units of single-action heating double-effect refrigeration, belong to refrigeration equipment
Technical field.
Background technique
Heat source is needed in production technology and life, while having the region of low temperature exhaust heat again, needs depth recovery waste heat
In the case of, the big temperature of remaining hot water cooling extent is again lower, and the hot water heating high temperature difference produced is again big, will use multisection type
First class lithium bromide absorptive heat pump unit (such as Fig. 1 is two-period form steam type first-class lithium bromide absorption type heat pump unit), can
The middle pressure steam consumption for saving a large amount of (40% or more), realizes the comprehensive utilization of the energy.And there are some occasions not only winter needs to supply
Heat, summer also need to freeze, and in order to dual-use, save initial cost, the steam type with refrigerating function the occur within nearly 2 years
One lithium bromide absorption type heat pump unit (such as Fig. 2), 1.7 or so, coefficient of performance of refrigerating exists the unit coefficient of performance in heating
0.75 or so.In the case where needing depth recovery waste heat, using such as Fig. 2 unit, just it is not easy to realize, will cause heat transfer temperature difference
It is small, heat exchange area is big, unit material cost is high, requires to meet heating, and heat pump unit is needed using two-period form, still,
How it to be just able to achieve dual-effect refrigeration in the two-period form heat pump unit, improve coefficient of performance of refrigerating, saves steam, and either supply
Heat or refrigeration, can reduce set heat exchange area, reduce unit material cost, easy to operate, securely and reliably, become and grind at present
One of important topic studied carefully.
Summary of the invention
Present invention aim to address above-mentioned background problems, provide a kind of two-period form lithium bromide of single-action heating double-effect refrigeration
Absorption type heat pump assembly, its winter heat pump depth recycle low temperature exhaust heat heat supply, summer operation dual-effect refrigeration, improve refrigeration performance system
Number, the dual-use, compact-sized, easy to operate, safe and reliable saved the energy, reduce initial cost.
What the object of the invention was realized in: a kind of two-period form lithium bromide absorption-type machine unit of single-action heating double-effect refrigeration,
Including steam generator I, condenser I, evaporator I, absorber I, heat exchanger I, solution pump I, cryogenic fluid pump I, steam generator
II, condenser II, evaporator II, absorber II, heat exchanger II, solution pump II and cryogenic fluid pump II.
The generator condenser shell of the unit further includes cavity I and cavity II；
The condenser I and steam generator I are arranged in cavity I；
The steam generator II and condenser II are arranged in cavity II；
Low pressure generator is also had additional in the cavity II；
Refrigerant vapour communicating pipe is provided between the gas phase zone and low pressure generator tube-side inlet of the steam generator I；
Low pressure generator cryogen water pipe is set between the low pressure generator tube side outlet and the U-tube I entrance of condenser I；
Shut-off valve B is set on hot water line of the condenser II out into condenser I；
A cooling water outlet tube is set on the hot water line out between condenser II and shut-off valve B, and is set on the cooling water outlet tube
Set shut-off valve A.
The low pressure generator is arranged in above or below steam generator II.
Steam electric control valve A is provided on the second steam inlet pipeline of the cavity I；
Steam electric control valve B is additionally provided on the first steam inlet pipeline of the cavity II.The condenser II and evaporation
U-tube II is additionally provided between device II, after the refrigerant vapour that low pressure generator concentrating dilute solution generates enters condenser II condensation
The water as refrigerant of condensation enters in U-tube II and then enters shwoot in evaporator II.
When winter heat pump heat supply operating condition, low pressure generator stops working, and shut-off valve A is closed, and shut-off valve B is opened, concentrated solution
Corresponding concentrated solution flow is adjusted in valve A and concentrated solution valve B, and corresponding cryogen water flow is adjusted simultaneously in cryogen water valve A and cryogen water valve B
The pressure difference between each cavity is kept, unit is run by two-period form lithium bromide absorption type heat pump working principle: steam generator I, condensation
Device I, evaporator I, absorber I and heat exchanger I form low-temperature zone heat pump cycle；Steam generator II, condenser II, evaporator
II, absorber II and heat exchanger II form high temperature section heat pump cycle.Since refrigerant vapour temperature is low in low pressure generator tube side
So not concentrate solution, is equivalent to and stops working.The steam parallel connection of external system by steam electric control valve A and B respectively into
Enter steam generator I and steam generator II tube side concentrating dilute solution is condensed into water outflow unit；Remaining hot water series connection is introduced into steaming
Hair device II cooling, which enters back into after evaporator I tube side cooling heat is utilized, flows out unit；Hot water series connection is followed successively by absorber I, inhales
To user's heat supply after receipts device II, condenser II, the entire temperature-rise period of condenser I tube side completion.
When summer operation dual-effect refrigeration operating condition, shut-off valve A is opened, and shut-off valve B is closed, and steam electric control valve B is closed, cold
Condenser I and steam generator II stop working, and corresponding concentrated solution flow, cryogen water valve is adjusted in concentrated solution valve A and concentrated solution valve B
A and cryogen water valve B is adjusted corresponding cryogen water flow and keeps the pressure difference between each cavity, and steam generator I becomes dual-effect refrigeration
The high pressure generator of unit, by high pressure generator, low pressure generator, condenser II, evaporator I, absorber I, heat exchanger I and
Evaporator II, absorber II, heat exchanger II constitute the steam double-effect refrigeration unit that evaporator absorber is divided into two sections, the unit
It is run by steam double-effect type solution parallel connection cooling flow.The steam of external system enters steam hair by steam electric control valve A
Raw device I tube side concentrating dilute solution is condensed into water outflow unit；Cooling water series connection be introduced into after absorber I enter absorber II again into
Enter condenser II tube side and takes heat out of unit；Cold water series connection be introduced into evaporator II enter back into evaporator I tube side cooling become
The colod-application family of the cold water supply produced.
The beneficial effects of the present invention are:
By above-mentioned completely new process and valve regulated and switching, the thermal field for keeping heat pump heating condition, cooling condition entirely different and
Flow field is able to safe and reliable operation on same unit, realizes winter heat pump depth recovery waste heat heat supply, summer operation pair
The purpose of refrigeration, water system segmented cooling or heating are imitated, the concentration difference and heat transfer temperature difference of unit solution is increased, makes set heat exchange
Area reduces, and material cost reduces, because being dual-effect refrigeration, coefficient of performance of refrigerating is greatly improved, and saves mass energy, a machine two
With reduction investment of equipment saves equipment space occupied.So can the energy-saving and emission-reduction realization energy when Winter heat supply of the present invention
Comprehensive utilization, summer can produce cold source again and meet air-conditioning and production technology use, improve the year operation utilization rate of unit, have
Extraordinary economic benefit and social benefit.
Detailed description of the invention
Fig. 1 is previous two-period form steam type first-class lithium bromide absorption type heat pump unit work flow diagram.
Fig. 2 is the steam type first-class lithium bromide absorption type heat pump unit work flow diagram with refrigerating function in the past.
Fig. 3 is a kind of two-period form lithium bromide absorption-type machine unit work flow diagram of single-action heating double-effect refrigeration of the present invention.
Fig. 4 is a kind of two-period form lithium bromide absorption-type machine unit another embodiment of single-action heating double-effect refrigeration of the present invention
Work flow diagram.
Wherein:
Generator 1, condenser 2, evaporator 4, absorber 5, heat exchanger 3, solution pump 6, cryogenic fluid pump 7, steam electric control valve
8, water bypass 9, U-tube 10.
Steam electric control valve A11, condenser I12, steam generator I13, steam generator II14, condenser II15,
Steam electric control valve B16, heat exchanger II17, concentrated solution valve B18, U-tube II19, cryogen water valve B20, absorber II21,
It is evaporator II22, cryogenic fluid pump II23, solution pump II24, solution pump I25, cryogenic fluid pump I26, evaporator I27, absorber I28, U-shaped
Pipe I29, cryogen water valve A30, heat exchanger I31, concentrated solution valve A32, shut-off valve A33, shut-off valve B34, refrigerant vapour communicating pipe
35, low pressure generator 36, low pressure generator cryogen water pipe 37, cavity I50, cavity II51；
First steam inlet 38, the first condensate outlet 39, cooling water outlet 40, waste heat water out 41, cooling water inlet 42, remaining hot water into
Mouthfuls 43, cooling water inlet 44, heating hot water import 45, heating hot water outlet 46, cooling water outlet 47, the second steam inlet 48,
Second condensate outlet 49.
Specific embodiment
The present invention will be described in further detail below with reference to the embodiments of the drawings.
As shown in figure 3, a kind of two-period form lithium bromide absorption-type machine unit of single-action heating double-effect refrigeration, including steam generator
I13, condenser I12, evaporator I27, absorber I28, heat exchanger I31, solution pump I25, cryogenic fluid pump I26, steam generator
II14, condenser II15, evaporator II22, absorber II21, heat exchanger II17, solution pump II24 and cryogenic fluid pump II23；
The generator condenser shell of the unit further includes cavity I50 and cavity II51；
The condenser I12 and steam generator I13 are arranged in cavity I50；
The steam generator II14 and condenser II15 are arranged in cavity II51；
Low pressure generator 36 is also had additional in the cavity II51, and low pressure generator 36 is arranged in steam generator II14's
Top；
Refrigerant vapour communicating pipe 35 is set between 36 tube-side inlet of gas phase zone and low pressure generator of steam generator I13；
Low pressure generator cryogen water pipe is set between the outlet of 36 tube side of low pressure generator and the U-tube I29 entrance of condenser I12
37；
Shut-off valve B34 is set on hot-water line of the condenser II15 out into condenser I12；
A cooling water outlet tube is set on the hot water line out between condenser II15 and shut-off valve B34, and in the cooling water outlet tube
Upper setting shut-off valve A33.
Steam electric control valve A11 is provided on 48 pipeline of the second steam inlet of the cavity I50；
Steam electric control valve B16 is additionally provided on 38 pipeline of the first steam inlet of the cavity II51.
U-tube II19 is additionally provided between the condenser II15 and evaporator II22.
When winter heat pump heat supply operating condition, low pressure generator 36 stops working, and shut-off valve A33 is closed, and shut-off valve B34 is opened,
Corresponding concentrated solution flow is adjusted in concentrated solution valve A32 and concentrated solution valve B18, and phase is adjusted in cryogen water valve A30 and cryogen water valve B20
It answers cryogen water flow and keeps the pressure difference between each cavity, unit is run by two-period form lithium bromide absorption type heat pump working principle: steaming
Vapour generator I13, condenser I12, evaporator I27, absorber I28 and heat exchanger I31 form low-temperature zone heat pump cycle；Steam
Generator II14, condenser II15, evaporator II22, absorber II21 and heat exchanger II17 form high temperature section heat pump cycle.
Since refrigerant vapour temperature is low so not concentrate solution, is equivalent to and stops working in 36 tube side of low pressure generator.External system
Steam parallel connection respectively enters steam generator I13 by steam electric control valve A11 and steam electric control valve B16 and steam is sent out
Raw device II14 tube side concentrating dilute solution is condensed into water outflow unit；Remaining hot water series connection is introduced into evaporator II22 cooling and enters back into steaming
Hair device I27 tube side cooling heat flows out unit after being utilized；Hot water series connection is followed successively by absorber I28, absorber II21, condenser
To user's heat supply after II15, the entire temperature-rise period of condenser I12 tube side completion.
When summer operation dual-effect refrigeration operating condition, shut-off valve A33 is opened, and shut-off valve B34 is closed, steam electric control valve B16
It closes, condenser I12 and steam generator II14 stop working, and concentrated solution valve A32 and concentrated solution valve B18 are adjustable corresponding dense molten
Flow quantity, cryogen water valve A30 and cryogen water valve B20 are adjusted corresponding cryogen water flow and keep the pressure difference between each cavity, steam
Generator I13 becomes the high pressure generator of dual-effect refrigeration unit, by high pressure generator, low pressure generator 36, condenser II15, steams
Send out device I27, absorber I28, heat exchanger I31 and evaporator II22, absorber II21, heat exchanger II17 composition evaporator suction
The steam double-effect refrigeration unit that device is divided into two sections is received, which is run by steam double-effect type solution parallel connection cooling flow.Outside system
The steam of system enters steam generator I13 tube side concentrating dilute solution by steam electric control valve A11 and is condensed into water outflow unit；
Cooling water series connection, which is introduced into after absorber I28 to enter absorber II21 and enter back into condenser II15 tube side, takes heat out of unit；
Cold water series connection is introduced into evaporator II22 and enters back into the cooling of evaporator I27 tube side as the colod-application family of cold water supply produced.
Above-mentioned evaporator absorber is divided into two sections of steam double-effect type solution parallel connection cooling flow cycle operation principle are as follows: by
Weak solution is squeezed into high pressure generator and is concentrated as concentrated solution by solution pump I25, and the high temperature refrigerant vapour of generation is connected to through refrigerant vapour
Pipe 35 enters in 36 heat-transfer pipe of low pressure generator, and heating squeezes into the weak solution in low pressure generator 36 by solution pump II24, is allowed to
As concentrated solution, refrigerant vapour is condensed into water as refrigerant in 36 heat-transfer pipe of low pressure generator, through low pressure generator cryogen water pipe 37 into
Enter in U-tube I29 and then enters shwoot in evaporator I27；The refrigerant vapour that 36 concentrating dilute solution of low pressure generator generates enters
Condenser II15 condensation, the water as refrigerant of condensation enter in U-tube II19 and then enter shwoot in evaporator II22；In evaporator
The water as refrigerant of non-shwoot squeezes into the heat absorption evaporation of evaporator I27 tube surface by cryogenic fluid pump I26 and produces cold water in I27, evaporation
Refrigerant vapour enters in absorber I28, by from high pressure generator and spray absorber I28 tube surface concentrated solution inhale
It receives, concentrated solution becomes weak solution and enters the bottom absorber I28；The water as refrigerant of non-shwoot is by cryogenic fluid pump II23 in evaporator II22
It squeezes into the heat absorption evaporation of evaporator II22 tube surface and produces cold water, the refrigerant vapour of evaporation enters in absorber II21, is come
From low pressure generator 36 and spray is absorbed in the concentrated solution of absorber II21 tube surface, and concentrated solution becomes weak solution and enters suction
The bottom device II21 is received, concentrated solution absorbs the heat that refrigerant vapour is released and takes unit out of by cooling water.So continuous circulation is produced
Required cold water is for users to use out.
As shown in figure 4, in another embodiment, a kind of two-period form of single-action heating double-effect refrigeration of the present invention
Steam generator II14, condenser II15 and the low pressure generator 36 of lithium bromide absorption-type machine unit are in same cavity, and low pressure
The lower section of steam generator II14 is arranged in generator.
In addition to the implementation, all to use equivalent transformation or equivalent replacement the invention also includes there is an other embodiments
The technical solution that mode is formed should all be fallen within the scope of the hereto appended claims.
Claims (6)
1. a kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration, the unit includes steam generator
I(13), condenser I(12), evaporator I(27), absorber I(28), heat exchanger I(31), solution pump I(25), cryogenic fluid pump I
(26), steam generator II(14), condenser II(15), evaporator II(22), absorber II(21), heat exchanger II(17),
Solution pump II(24) and cryogenic fluid pump II(23)；It is characterized by: the generator condenser shell of the unit further includes cavity I
(50) and cavity II(51)；
The condenser I(12) and steam generator I(13) be arranged at cavity I(50) in；
The steam generator II(14) and condenser II(15) be arranged at cavity II(51) in；
The cavity II(51) in also have additional low pressure generator (36)；
The steam generator I(13) gas phase zone and low pressure generator (36) tube-side inlet between be provided with refrigerant vapour and be connected to
It manages (35)；
Low pressure generator (36) tube side outlet and condenser I(12) U-tube I(29) low pressure generator is set between entrance
Cryogen water pipe (37)；
In condenser II(15 out) into shut-off valve B(34 is arranged on the hot water line of condenser I(12))；
In condenser II(15 out) and shut-off valve B(34) between hot water line on set a cooling water outlet tube, and in the cooling water
Shut-off valve A(33 is set in outlet pipe).
2. a kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration according to claim 1,
Be characterized in that: the low pressure generator (36) is arranged above or below steam generator II(14).
3. a kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration according to claim 1,
Be characterized in that: the cavity I(50) the second steam inlet (48) pipeline on be provided with steam electric control valve A(11)；It is described
Cavity II(51) the first steam inlet (38) pipeline on be additionally provided with steam electric control valve B(16).
4. a kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration according to claim 1,
Be characterized in that: the condenser II(15) and evaporator II(22) between be additionally provided with U-tube II(19).
5. a kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration according to claim 1,
Be characterized in that: when winter heat pump heat supply operating condition, low pressure generator (36) stops working, shut-off valve A(33) it closes, shut-off valve B
(34) it opens, unit is run by two-period form lithium bromide absorption type heat pump working principle.
6. a kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration according to claim 3,
It is characterized in that: when summer operation dual-effect refrigeration operating condition, shut-off valve A(33) open, shut-off valve B(34) close, steam motorized adjustment
Valve B(16) close, condenser I(12) and steam generator II(14) stop working, steam generator I(13) become dual-effect refrigeration
The high pressure generator of unit, by high pressure generator, low pressure generator (36), condenser II(15), evaporator I(27), absorber I
(28), heat exchanger I(31) and evaporator II(22), absorber II(21), heat exchanger II(17) constitute evaporator absorber
It is divided into two sections of steam double-effect refrigeration unit, which is run by steam double-effect type solution parallel connection cooling flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526845.7A CN110173923A (en) | 2019-06-18 | 2019-06-18 | A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910526845.7A CN110173923A (en) | 2019-06-18 | 2019-06-18 | A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration |
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|---|---|
| CN110173923A true CN110173923A (en) | 2019-08-27 |
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| CN201910526845.7A Pending CN110173923A (en) | 2019-06-18 | 2019-06-18 | A kind of two-period form lithium bromide absorption type heat pump unit of single-action heating double-effect refrigeration |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110542241A (en) * | 2019-09-19 | 2019-12-06 | 双良节能***股份有限公司 | Single-double effect composite evaporation-absorption two-section steam type first-class lithium bromide absorption heat pump unit |
| CN111271895A (en) * | 2020-03-18 | 2020-06-12 | 双良节能***股份有限公司 | Super-large steam type first-class lithium bromide absorption heat pump unit arranged from top to bottom |
| CN111780451A (en) * | 2020-07-02 | 2020-10-16 | 双良节能***股份有限公司 | Steam double-effect type lithium bromide absorption water chilling unit capable of supplying heat in single effect |
| CN113432334A (en) * | 2021-07-22 | 2021-09-24 | 双良节能***股份有限公司 | Smoke hot water type lithium bromide absorption cold-water heat pump unit |
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| CN111780451B (en) * | 2020-07-02 | 2024-06-04 | 双良节能***股份有限公司 | Steam double-effect lithium bromide absorption type water chilling unit capable of supplying heat in single-effect mode |
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