CN105423593B - Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit - Google Patents
Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit Download PDFInfo
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- CN105423593B CN105423593B CN201510985466.6A CN201510985466A CN105423593B CN 105423593 B CN105423593 B CN 105423593B CN 201510985466 A CN201510985466 A CN 201510985466A CN 105423593 B CN105423593 B CN 105423593B
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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
Abstract
The present invention relates to a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit, it is characterised in that：The unit adds flue gas heat-exchange unit（17）, flash vessel（18）, heating absorber（19）, heating solution heat exchanger（20）, heating cryogenic fluid pump（21）, flash vessel（18）With heating absorber（19）It is arranged in same cavity, in hot water or cold water's inlet tube of unit（15）On set up hot water line all the way, the road hot water enter heating absorber（19）In heat exchanger tube；In the solution pump discharge pipe of unit（12）On set up weak solution pipeline all the way, the road weak solution is through heating solution heat exchanger（20）Cooling enters heating absorber（19）Spray；In the evaporator liquid capsule of unit（14）On set up all the way cryogenic coolant water supplement pipeline（23）；Heating cryogenic fluid pump（21）By flash vessel liquid capsule（25）Interior cryogenic coolant water, which is squeezed into, enters flash vessel flash distillation after flue gas heat-exchange unit heating.Effectively reduction exhaust gas temperature of the invention, improve heating efficiency, it is simple to operate.
Description
Technical field
The present invention relates to a kind of direct-burning type lithium bromide absorption type hot water or cold water unit.Belong to air conditioner technical field.
Background technology
Current direct-burning type lithium bromide absorption type hot water or cold water unit by direct combustion high pressure generator 1, low pressure as shown in figure 1, occurred
Device 9, condenser 8, evaporator 5, absorber 4, cryogenic fluid heat exchanger 3, high-temperature solution heat exchanger 2, heating concentrated solution are cut
Change valve 10, heating refrigerant vapour switching valve 11, solution pump 6, cryogenic fluid pump 7, valve and control system（Not shown in figure）And connection
The pipeline of each part is constituted.Unit is when heating operating mode is run, heating concentrated solution switching valve 10 and the switching of heating refrigerant vapour
Valve 11 is opened, and cryogenic fluid pump 7 and external system cooling water pump stop, and the low-temperature water heating come from air conditioner user exchanges heat into evaporator 5
In pipe, the heat of condensation of the cryogen water vapour produced by the heat dilute solution of heat exchange pipe external surface direct combustion high pressure generator 1 is heated, temperature
Heating user is sent to after rise, the concentrated solution after direct combustion high pressure generator 1 is concentrated enters the interior cryogen with after condensation of absorber 4
Water mixing becomes weak solution, and being sent to direct combustion high pressure generator 1 by solution pump 6 is circulated and heated again.Due to what is produced
Heating hot water leaving water temperature is limited, and solution temperature is higher, causes exhaust gas temperature also higher, influences the heating thermal efficiency, such as heating water
Outlet temperature is at 60 DEG C, and direct combustion high pressure generator exhaust gas temperature is at 155 DEG C or so, and heating efficiency is 93% or so.Particularly exist
Cold winter, outdoor temperature is low, and chimney just emits white cigarette, both wastes the energy, and environment is polluted again.How a kind of effectively drop is found
Low exhaust gas temperature, raising heating efficiency, new direct combustion type lithium bromide absorption cold simple to operate, Hot water units turn into be ground at present
One of important topic studied carefully.
The content of the invention
It is an object of the invention to overcome above-mentioned deficiency there is provided a kind of effectively reduction exhaust gas temperature, raising heating efficiency, grasp
Make simple direct-burning type lithium bromide absorption type hot water or cold water unit.
The object of the present invention is achieved like this：A kind of heating normal temperature smoke evacuation hot and cold water dispenser of direct-burning type lithium bromide absorption type
Group, including direct combustion high pressure generator, low pressure generator, condenser, evaporator, absorber, cryogenic fluid heat exchanger and high temperature
Solution heat exchanger, it is characterised in that：The unit adds flue gas heat-exchange unit, flash vessel, heating absorber, heating solution heat
Exchanger and heating cryogenic fluid pump, flue gas heat-exchange unit are arranged on direct combustion high pressure generator smoke exhaust pipe, flash vessel and heating absorber
It is arranged in same cavity, and is placed on the position higher than evaporator and absorber components, on hot water or cold water's inlet tube of unit
Hot water line all the way is set up, the road hot water enters in heating absorber heat exchanging pipe, and sets heating hot water on the hot water line
Switching valve, goes out the hot water or cold water outlet of heating absorber hot water access unit；Set up dilute all the way on the solution pump discharge pipe of unit
Solution line, the road weak solution enters heating absorber through the cooling of heating solution heat exchanger and sprayed, and in the weak solution pipeline
Upper setting heating weak solution switching valve, weak solution, which absorbs, in heating absorber is changed into lower dilute molten of concentration after cryogenic coolant steam
Liquid, enters absorber cylinder body bottom by height level difference through the heating of heating solution heat exchanger；In the evaporator liquid capsule of unit
Cryogenic coolant water supplement pipeline all the way is set up, the road water as refrigerant is used as cryogenic coolant water moisturizing into flash vessel liquid capsule；Heating is cold
Cryogenic coolant water in flash vessel liquid capsule is squeezed into flue gas heat-exchange unit, the cigarette that cryogenic coolant water comes out with direct combustion high pressure generator by agent pump
Gas exchanges heat, and the rise of cryogenic coolant coolant-temperature gage enters flash vessel flash distillation, is discharged after the reduction of flue gas heat recovered temperature.
The beneficial effects of the invention are as follows：
The present invention creates low-temperature receiver one lower than smog discharge temperature, has not only reclaimed flue gas by above-mentioned flow
Sensible heat, also reclaimed the latent heat of water vapour in flue gas, exhaust gas temperature is down to normal temperature, heating efficiency is greatly improved.For example：System
Take heating hot water outlet temperature at 60 DEG C or so, flash vessel absorber cavity internal pressure is changed in 25mmHg or so into flue gas
The cryogenic coolant coolant-temperature gage of hot device is at 26 DEG C or so, and the exhaust gas temperature of unit is reduced to less than 35 DEG C, with conventional direct fired machine
155 DEG C of exhaust gas temperature is compared, and the heat of condensation of water vapour, fires than ever in the sensible heat and flue gas of many 120 DEG C of temperature difference of recovered flue gas
Natural gas direct fired machine energy utilization rate improves 13% or so, and heating efficiency reaches 106% or so.The constant feelings of unit heating capacity
Under condition, fuel consumption is greatly decreased, and reduces operating cost, has reached energy-efficient purpose, while having prevented winter heating
Chimney emits the phenomenon of white cigarette, reduces thermal pollution of the smoke evacuation to environment, protects environment.The present invention is simple to operate.
Brief description of the drawings
Fig. 1 is conventional direct-burning type lithium bromide absorption type hot water or cold water unit heat supply schematic flow sheet.
Fig. 2 heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit heat supply schematic flow sheets of the present invention.
Reference：
Direct combustion high pressure generator 1
High-temperature solution heat exchanger 2
Cryogenic fluid heat exchanger 3
Absorber 4
Evaporator 5
Solution pump 6
Cryogenic fluid pump 7
Condenser 8
Low pressure generator 9
Heating concentrated solution switching valve 10
Heating refrigerant vapour switching valve 11
Solution pump discharge pipe 12
Absorber cylinder body bottom 13
Evaporator liquid capsule 14
Hot water or cold water's inlet tube 15
Hot water or cold water's outlet 16
Flue gas heat-exchange unit 17
Flash vessel 18
Heating absorber 19
Heating heat exchanger 20
Heating cryogenic fluid pump 21
Heating weak solution switching valve 22
Cryogenic coolant water supplements pipeline 23
Heating hot water switching valve 24
Flash vessel liquid capsule 25.
Embodiment
As shown in Fig. 2 on the basis of conventional direct-burning type lithium bromide absorption type hot water or cold water unit such as Fig. 1, adding flue gas
Heat exchanger 17, flash vessel 18, heating absorber 19, heating solution heat exchanger 20 and heating cryogenic fluid pump 21, flue gas heat-exchange unit 17
It is arranged on the smoke exhaust pipe of direct combustion high pressure generator 1, flash vessel 18 and heating absorber 19 are arranged in same cavity, and are placed on
Higher than the position of evaporator 5 and the part of absorber 4.Hot water line all the way is set up on hot water or cold water's inlet tube 15 of unit, the road
Hot water enters in the heat exchanger tube of heating absorber 19, and sets heating hot water switching valve 24 on the hot water line, and this Lu Shuiyu enters
The water for entering evaporator 5 is in parallel, goes out the hot water or cold water outlet of the hot water of heating absorber 19 access unit；In the solution pump discharge of unit
Weak solution pipeline all the way is set up on pipe 12, the road weak solution enters heating absorber 19 through the cooling of heating solution heat exchanger 20 and sprayed
Drench, and heating weak solution switching valve 22 is set on the weak solution pipeline, this road weak solution is with entering direct combustion high pressure generator
Weak solution is in parallel.Weak solution is changed into the lower weak solution of concentration after absorbing cryogenic coolant steam in heating absorber 19, by height
Liquid level difference enters absorber cylinder body bottom 13 through the heating of heating solution heat exchanger 20.Set up in the evaporator liquid capsule 14 of unit
Cryogenic coolant water supplements pipeline 23 all the way, and the road water as refrigerant is used as cryogenic coolant water moisturizing into flash vessel liquid capsule 25；Heating is cold
Cryogenic coolant water in flash vessel liquid capsule 25 is squeezed into after flue gas heat-exchange unit 17 heats up and flashed into flash vessel 18 by agent pump 21.Flue gas heat
Discharged after measuring recovered temperature reduction.
When heating operating mode is run, conventional heating circulation process is still normally run, cryogenic fluid pump 7 and external system cooling water
Pump stops, and heating concentrated solution switching valve 10 and heating refrigerant vapour switching valve 11 are opened, and solution pump 6 starts, the heating newly established
Weak solution switching valve 22 and heating hot water switching valve 24 are opened, heating cryogenic fluid pump 21 starts.It is divided into from solution pump discharge weak solution
Two tunnels, all the way weak solution concentrated into direct combustion high pressure generator 1, another road weak solution through heating solution heat exchanger 20 cool into
Enter heating absorber 19 to spray；The low-temperature water heating come from heating user is divided into two tunnels, and low-temperature water heating exchanges heat into evaporator 5 all the way
In pipe, the heat of condensation of the high temperature refrigerant vapour produced by the heat dilute solution of heat exchange pipe external surface direct combustion high pressure generator 1 is heated, separately
Low-temperature water heating enters in the heat exchanger tube of heating absorber 19 all the way, is sprayed and is absorbed in heat exchange pipe external surface weak solution from flash vessel
18 cryogenic coolant steam liberated heats are heated, and two-way hot water temperature rise, which is merged together, is sent to heating user, and direct combustion is high
Concentrated solution after pressure generator 1 is concentrated becomes dilute molten into interior mixed with water as refrigerant that is being overflowed after being condensed in evaporator 5 of absorber 4
Weak solution is changed into the lower weak solution of concentration after absorbing cryogenic coolant steam in liquid, heating absorber 19, by height level pressure difference
Enter absorber cylinder body bottom 13 through the heating of heating solution heat exchanger 20 to mix with weak solution in absorber 4, solution pump 6 by its
In all the way weak solution be sent to direct combustion high pressure generator 1 and circulated and heated again concentration, another road weak solution is sent to heating
Solution heat exchanger 20 circulates and absorbed cryogenic coolant steam again after cooling into heating absorber 19.Heating cryogenic fluid pump 21 will
Cryogenic coolant water squeezes into the flue gas heat exchange that flue gas heat-exchange unit 17 comes out with direct combustion high pressure generator 1, flue gas in flash vessel liquid capsule 25
Discharged after the reduction of heat recovery temperature, it is cryogenic coolant that shwoot in the relatively low cavity of flash vessel 18 of pressure is entered after water as refrigerant heating
Steam, cryogenic coolant steam is absorbed by the solution sprayed outside the heat exchanger tube of heating absorber 19, the solution in heating absorber 19
Continuous absorption refrigerant vapour makes cavity internal pressure be maintained at certain value, and flash distillation absorption process is with regard to constantly progress.The cryogen of flash vessel 18
Water moisturizing enters by the pressure differential between evaporator 5 and flash vessel 18 from evaporator liquid capsule 14 through cryogenic coolant water supplement pipeline 23 dodges
Steaming device liquid capsule 25, constantly gives the moisturizing of flash vessel 18.
When cooling condition is run, by heating concentrated solution switching valve 10, heating refrigerant vapour switching valve 11, heating weak solution
Switching valve 22, the Close All of heating hot water switching valve 24, heating cryogenic fluid pump 21 stop, flue gas heat-exchange unit 17, flash vessel 18, heating
Absorber 19 and heating solution heat exchanger 20 stop circulation, and unit still presses conventional kind of refrigeration cycle process flow operation.
Flash vessel 18 and the housing of heating absorber 19 can be independently arranged in above scheme, by flash vessel 18 and can also be adopted
Warm absorber 19 is arranged in low pressure generator 9 and the housing of condenser 8, is separated with dividing plate between them, flash vessel 18 and heating
Absorber 19 is in same cavity, and low pressure generator 9 and condenser 8 are in same cavity.
It can be single hop that above scheme, which is applied to evaporator 5, absorber 4,（Shown in figure）, can also be two sections or multistage,
Cooling water can be parallel-connection flow（Shown in figure）It can also be serial flow.
Claims (4)
- Direct-burning type lithium bromide absorption type hot water or cold water's unit 1. a kind of heating normal temperature is discharged fume, including direct combustion high pressure generator（1）, it is low Press generator（9）, condenser（8）, evaporator（5）, absorber（4）, cryogenic fluid heat exchanger（3）With pyrosol heat exchange Device（2）, it is characterised in that：The unit adds flue gas heat-exchange unit（17）, flash vessel（18）, heating absorber（19）, heating Solution heat exchanger（20）With heating cryogenic fluid pump（21）, flue gas heat-exchange unit（17）It is arranged on direct combustion high pressure generator（1）Smoke exhaust pipe On, flash vessel（18）With heating absorber（19）It is arranged in same cavity, and is placed on higher than evaporator（5）And absorber （4）The position of part, in hot water or cold water's inlet tube of unit（15）On set up hot water line all the way, the road hot water into heating inhale Receive device（19）In heat exchanger tube, and the setting heating hot water switching valve on the hot water line（24）, go out heating absorber（19）Hot water Access the hot water or cold water outlet of unit；In the solution pump discharge pipe of unit（12）On set up weak solution pipeline all the way, the road weak solution Through heating solution heat exchanger（20）Cooling enters heating absorber（19）Spray, and set heating dilute on the weak solution pipeline Solution switching valve（22）, heating absorber（19）Interior weak solution is changed into the lower weak solution of concentration after absorbing cryogenic coolant steam, By height level difference through heating solution heat exchanger（20）Heating enters absorber cylinder body bottom（13）；In the evaporator liquid of unit Capsule（14）On set up all the way cryogenic coolant water supplement pipeline（23）, the road water as refrigerant enter flash vessel liquid capsule（25）It is used as low temperature cold Agent water moisturizing；Heating cryogenic fluid pump（21）By flash vessel liquid capsule（25）Interior cryogenic coolant water squeezes into flue gas heat-exchange unit（17）Heating is laggard Enter flash vessel（18）Flash distillation.
- 2. a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit according to claim 1, its feature It is：The unit flash vessel（18）With heating absorber（19）Housing is independently arranged, or by flash vessel（18）Absorbed with heating Device（19）It is arranged on low pressure generator（9）And condenser（8）Separated in housing, between them with dividing plate, flash vessel（18）With adopt Warm absorber（19）It is arranged in same cavity, low pressure generator（9）And condenser（8）It is arranged in same cavity.
- 3. a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit according to claim 1 or 2, its It is characterised by：The evaporator of the unit（5）And absorber（4）It is single hop or multistage.
- 4. a kind of heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit according to claim 1 or 2, its It is characterised by：The cooling water of the unit is parallel-connection flow or serial flow.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985466.6A CN105423593B (en) | 2015-12-25 | 2015-12-25 | Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510985466.6A CN105423593B (en) | 2015-12-25 | 2015-12-25 | Heating normal temperature smoke evacuation direct-burning type lithium bromide absorption type hot water or cold water's unit |
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| CN105423593A CN105423593A (en) | 2016-03-23 |
| CN105423593B true CN105423593B (en) | 2017-09-08 |
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| CN108362035B (en) * | 2018-04-09 | 2024-01-05 | 双良节能系统股份有限公司 | White smoke-eliminating efficient direct-fired lithium bromide absorption type cold and hot water unit system |
| CN108489142B (en) * | 2018-04-09 | 2024-03-22 | 双良节能系统股份有限公司 | Environment-friendly efficient direct-fired lithium bromide absorption type cold and hot water unit system |
| CN108518891B (en) * | 2018-04-09 | 2024-03-08 | 双良节能系统股份有限公司 | Direct-fired lithium bromide absorption type cold and hot water unit with sanitary hot water for eliminating white smoke |
| CN108397931B (en) * | 2018-04-09 | 2023-12-15 | 双良节能系统股份有限公司 | Environment-friendly, efficient and energy-saving direct-fired lithium bromide absorption type cold and hot water unit |
| CN109458753B (en) * | 2018-12-27 | 2024-04-02 | 双良节能系统股份有限公司 | Online detection density flue gas type lithium bromide absorption type low-temperature water chilling unit |
| CN110307662B (en) * | 2019-07-08 | 2023-12-22 | 双良节能系统股份有限公司 | Lithium bromide absorption unit for direct-fired heat pump and hot water type refrigeration |
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| CN105423593A (en) | 2016-03-23 |
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