CN206247689U - Two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units - Google Patents
Two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units Download PDFInfo
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- CN206247689U CN206247689U CN201621238912.3U CN201621238912U CN206247689U CN 206247689 U CN206247689 U CN 206247689U CN 201621238912 U CN201621238912 U CN 201621238912U CN 206247689 U CN206247689 U CN 206247689U
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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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Abstract
The utility model is related to a kind of two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units, belongs to air conditioner technical field.Including：Low pressure generator（1）, high pressure generator（2）, condenser（3）, high-temperature heat exchanger（4）, low temperature heat exchanger（5）, the first absorber（6）, the first evaporator（7）, the second absorber（8）, the second evaporator（9）, the first absorber（6）, high-temperature heat exchanger（4）And high pressure generator（2）Constitute solution circulation, the second absorber all the way（8）, low temperature heat exchanger（5）And low pressure generator（1）Constitute another road solution circulation；The middle tunnels of warm water Shi Fen tri-, all the way series connection flows through the second evaporator（9）With the first absorber（6）, another two-way flows separately through the second absorber（8）And condenser（3）.The unit can reduce the refrigerating capacity of the second evaporator in superposition type unit, so as to improve the COP of whole unit.
Description
Technical field
The utility model is related to a kind of two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units.Belong to air-conditioning equipment
Technical field.
Background technology
Existing superposition type double-effect lithium bromide absorption type cooling/heating pump assembly（Hereinafter referred to as superposition type economic benefits and social benefits unit, or machine
Group）As shown in figure 1, by low pressure generator 1, high pressure generator 2, condenser 3, high-temperature heat exchanger 4, low temperature heat exchanger 5,
One absorber 6, the first evaporator 7, the second absorber 8, the second evaporator 9, the first cryogenic fluid pump 10, the first solution pump 11, cryogen
Communicating pipe 12, recirculating water pump 13 and control system（Not shown in figure）And the pipeline of connecting components, valve are constituted.Water at low temperature
（The cold water of refrigeration unit or the remaining hot water of source pump, similarly hereinafter）The first evaporator 7 is flowed through to lower the temperature；Middle warm water（Refrigeration unit
The hot water of cooling water or source pump, similarly hereinafter）Flow through the second absorber 8 and condenser 3 heats up；High temperature driven thermal source flows through high pressure
Generator 2, release thermal discharge drives whole unit operation；There is recirculated water all the way to be driven by recirculating water pump 13 in addition, the
Closed cycle between one absorber 6 and the second evaporator 9.During unit operation, extracted out from the first evaporator 7 by the first cryogenic fluid pump 10
Water as refrigerant under the spray of top absorbs the heat for flowing through water at low temperature in the heat-transfer pipe of the first evaporator 7, and the first absorber is entered after vaporization
6, absorbed by lithium bromide concentrated solution therein, and discharge the recirculated water during heat flows through the heat-transfer pipe of the first absorber 6；Temperature
Recirculated water after rising is sent into the heat-transfer pipe of the second evaporator 9 by recirculating water pump 13, after being extracted out by the first cryogenic fluid pump 10
Water as refrigerant under the spray of top exchanges heat and lowers the temperature, and comes back to the heat of absorbent solution release in the first absorber 6 after temperature reduction again
Amount, and the water as refrigerant in the second evaporator 9 is vaporized and into the second absorber 8 after absorbing heat, by lithium-bromide solution therein
Absorb；Concentration is thinning after lithium bromide concentrated solution absorbs refrigerant vapour in first absorber 6 and the second absorber 8, by the first solution
Enter high pressure generator 2, low after pump 11 is extracted out and point two-way heats up through high-temperature heat exchanger 4, the heat exchange of low temperature heat exchanger 5 respectively
In pressure generator 1.Lithium bromide weak solution in high pressure generator 2 is heated by high temperature heat source and concentrated, the bromination in low pressure generator 1
Lithium weak solution heats concentration, the lithium-bromide solution after concentration by the high temperature refrigerant vapour that solution concentration in high pressure generator 2 is produced
Inhaled in returning to the first absorber 6 and the second absorber 8 after high-temperature heat exchanger 4, the heat exchange cooling of low temperature heat exchanger 5 respectively again
Receive refrigerant vapour；And the refrigerant vapour that solution concentration is produced in high pressure generator 2 is cold after discharging heat in low pressure generator 1
It is solidifying, enter in condenser 3 with the refrigerant vapour of solution concentration generation in low pressure generator 1 and condensed by the cooling of middle warm water, condensation
Into water as refrigerant return to the second evaporator 9 and by returning to the first evaporator 7 cryogen communicating pipe 12 in.
In superposition type economic benefits and social benefits unit, the heat extracted from the water at low temperature of the first evaporator 7 is flowed through is advanced becoming a mandarin
In closed cycle water through the first absorber 6, then the heat extraction in the closed cycle water is gone out again in the second evaporator 9
Could enter in the middle warm water for flowing through the second absorber 8 after coming.That is, superposition type economic benefits and social benefits unit is in order to by water at low temperature
Heat extraction out enter in warm water, except needing consumption high temperature driven heat energy, former using suction-type lithium bromide dual-effect refrigeration
The water at low temperature to flowing through the first evaporator 7 is managed to freeze（Heat therein is extracted, similarly hereinafter）Outward, also need also exist for consuming high temperature
Drive heat energy, the closed cycle water for flowing through the second evaporator 9 is freezed using suction-type lithium bromide dual-effect refrigeration principle.Enclosed is followed
The heat that ring water discharges in the second evaporator 9（Also referred to as refrigerating capacity）It is exactly heat that it absorbs in the first absorber 6, for
For lithium bromide absorption-type machine unit, the heat exchange amount in absorber is about 1.2 times of correspondence evaporator capacity.Therefore, overlapping
Formula economic benefits and social benefits unit in order in warm water during the heat extraction in water at low temperature is out entered, it is necessary to consume high temperature driven heat energy, utilize
Suction-type lithium bromide dual-effect refrigeration principle is freezed to water at low temperature and recirculated water simultaneously, and overall refrigerating effect is approximately water at low temperature heat
2.2 times, it is assumed that the COP of suction-type lithium bromide dual-effect refrigeration unit is 1.4, then the COP of superposition type economic benefits and social benefits unit is approximately 1.4 ÷
2.2=0.636.If improving the COP of superposition type economic benefits and social benefits unit, a kind of approach is the effect of lifting dual-effect refrigeration circulation as far as possible
Rate（That is COP）, such as increasing heat exchange area to reduce the heat exchange difference of heat exchanger, also a kind of approach is exactly to reduce by the second steaming
Send out the refrigeration demand of device 9.
The content of the invention
The purpose of this utility model is exactly to improve superposition type double-effect unit by reducing the refrigeration demand of the second evaporator 9
The COP of group.
What the purpose of this utility model was realized in：A kind of two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump machines
Group, including：Low pressure generator, high pressure generator, condenser, high-temperature heat exchanger, low temperature heat exchanger, the first absorber,
One evaporator, the second absorber, the second evaporator, the first cryogenic fluid pump, the first solution pump, the second solution pump and cryogen communicating pipe,
First evaporator and the first absorber are in a cavity, and are equipped with the first solution pump, the second evaporator and the second absorber
In another cavity, and it is equipped with the second solution pump；The water as refrigerant of the first evaporator and the second evaporator is by cryogen communicating pipe
Connection.First solution pump extracts the weak solution of the first absorber out, high pressure generator is sent to through high-temperature heat exchanger, after concentration
Solution returns to the first absorber through high-temperature heat exchanger again.Second solution pump extracts the weak solution of the second absorber out, through low temperature
Heat exchanger is sent to low pressure generator, and the solution after concentration returns to the second absorber through low temperature heat exchanger again.High pressure generator
The refrigerant vapour that middle solution concentration is produced enters low pressure generator, enters condenser after release heat condensation, in low pressure generator
Also into condenser, two-way refrigerant vapour returns the second steaming to the refrigerant vapour that solution concentration is produced after being condensed within the condenser
Hair device and the first evaporator.High temperature driven thermal source flows through high pressure generator, and release thermal discharge drives whole unit operation；Water at low temperature
Flow through the cooling of the first evaporator；The middle tunnels of warm water Shi Fen tri-, all the way series connection flows through the second evaporator and after the first absorber is first lowered the temperature
Heat up, two-way flows separately through the second absorber and condenser heats up in addition；It can also be a point two-way, and series connection all the way flows through second
Evaporator and the first absorber, another road random order series connection flow through the second absorber and condenser；It can also be a point two-way,
Series connection all the way flows through the second evaporator and the first absorber, and another road then flows through any one in the second absorber and condenser
Individual, two path water passes through another in the second absorber and condenser after converging；Or point two-way, first series connection is flowed through all the way
After second evaporator and the first absorber, any one in the second absorber and condenser is passed through, another road then flows through
Another in two absorbers and condenser.
Improvement of the present utility model and beneficial effect are：
1st, compared with existing superposition type economic benefits and social benefits unit, the utility model eliminates closed cycle water and water pump, be changed to from
Separate to come in middle warm water and substitute the closed cycle water, warm water enters back into first after first lowering the temperature in the second evaporator in the road
Heated up in absorber.For the superposition type economic benefits and social benefits unit of some operating modes, this middle warm water all the way after being heated up through the first absorber, its
Temperature can be higher than the temperature that middle warm water enters unit, that is to say, that this heat that middle warm water absorbs in the first absorber all the way can
With the heat discharged in the second evaporator more than it, the refrigerating capacity of the second evaporator can inhale less than first in other words
The heat exchange amount of device is received, consumption high temperature heat source, double using suction-type lithium bromide is needed so as to reduce whole superposition type economic benefits and social benefits unit
The refrigerating capacity for imitating refrigeration principle to be freezed, such that it is able to improve the COP of superposition type economic benefits and social benefits unit.
2nd, compared with existing superposition type economic benefits and social benefits unit, the utility model also add the second solution pump.First solution pump
Only the lithium bromide weak solution of the first absorber is extracted out and high pressure generator concentration is sent to, the solution after concentration comes back to first
Absorber absorbs refrigerant vapour；And after increased second solution pump then extracts the lithium bromide weak solution of the second absorber out, be sent to
Low pressure generator is concentrated.Because the concentration of the second absorber lithium bromide weak solution is dense less than the first absorber lithium bromide weak solution
Degree, so after low pressure generator concentration is sent in the second solution pump of increase and by the weak solution of the second absorber, can reduce low
Temperature in pressure generator needed for solution concentration, so that the condensation exothermic temperature of its heating source-refrigerant vapour occurred frequently is reduced, because
And the pressure of high pressure generator can be reduced.In the case where the lithium-bromide solution concentration for entering high pressure generator is the same, pressure high
Raw device pressure is lower, and the temperature needed for the concentration of its solution is also lower, thus driving heat source needed for unit operation can be reduced
Temperature.
By taking 12/7 DEG C of water at low temperature out temperature, 40/45 DEG C of middle warm water out temperature as an example, due to lithium bromide weak solution
The reason such as concentration and high pressure generator pressure, 40 DEG C of the middle warm water is not suitable for being directly entered the first absorber 6.But using this specially
After a part of 40 DEG C middle warm water is cooled to 34 DEG C or so by the superposition type economic benefits and social benefits unit of profit in the second evaporator 9, the part
Middle warm water can enter in the first absorber 6, and its temperature can be lifted to 42 DEG C or so in the first absorber 6.The portion
Temperature rise of the warm water in the first absorber 6 is 8 DEG C in point, and its temperature drop in the second evaporator 9 is 6 DEG C, i.e., the second evaporation
The refrigerating capacity of device 9 about only has the 75% of the heat exchange amount of the first absorber 6, and the heat exchange amount by the first absorber 6 is that the first evaporator 7 is made
1.2 times of cold consider that then the refrigerating capacity of the second evaporator 9 about only has 0.9 times of the refrigerating capacity of the first evaporator 7.That is
Using after the superposition type economic benefits and social benefits unit of this patent, it is necessary to consume high temperature driven heat energy, former using suction-type lithium bromide dual-effect refrigeration
The overall refrigerating effect for managing to freeze about only has 1.9 times of the water at low temperature refrigerating capacity of the first evaporator 7, it will again be assumed that suction-type lithium bromide economic benefits and social benefits
The COP of refrigeration unit is 1.4, then the COP of this patent superposition type economic benefits and social benefits unit can reach about 1.4 ÷ 1.9=0.737, multiple with existing
The 0.636 of stacked unit is compared, and improves about 15.9%.And because the increased second solution pump of this patent, the pressure high of unit
Raw device pressure about there was only 250mmHg, it is necessary to high temperature driven heat source temperature only need about 140 DEG C；Were it not for the second solution of increase
Pump, be still the lithium bromide weak solution of the first absorber and the second absorber is merged with the first solution pump be sent to high pressure generator and
Low pressure generator concentrate, then the pressure of high pressure generator about be up to 750mmHg, it is necessary to high temperature driven heat source temperature about need
170℃。
Brief description of the drawings
Fig. 1 is the fundamental diagram of conventional superposition type double-effect lithium bromide absorption type cooling/heating pump assembly.
Fig. 2 is a kind of two sections of application examples of superposition type double-effect lithium bromide absorption type refrigerating heat pump unit of the utility model.
Fig. 3 is real for another application of two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units of the utility model
Example.
Reference in figure：
Low pressure generator 1, high pressure generator 2, condenser 3, high-temperature heat exchanger 4, low temperature heat exchanger 5, first absorb
Device 6, the first evaporator 7, the second absorber 8, the second evaporator 9, the first cryogenic fluid pump 10, the first solution pump 11, cryogen communicating pipe
12nd, recirculating water pump 13, the second solution pump 14, the second cryogenic fluid pump 15.
Water at low temperature enters A1, and water at low temperature goes out A2, and middle warm water enters B1, and middle warm water goes out B2, and thermal source enters C1, and thermal source goes out C2.
Specific embodiment
Fig. 2 is two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units involved by the utility model（Following letter
Claim superposition type economic benefits and social benefits unit, or unit）A kind of exemplary application map, the unit by low pressure generator 1, high pressure generator 2, condensation
Device 3, high-temperature heat exchanger 4, low temperature heat exchanger 5, the first absorber 6, the first evaporator 7, the second absorber 8, second evaporate
Device 9, the first cryogenic fluid pump 10, the first solution pump 11, cryogen communicating pipe 12, the second solution pump 14 and control system and each portion of connection
Pipeline, valve of part etc. are constituted.First evaporator 7 and the first absorber 6 are equipped with the first solution pump 11 in a cavity,
Second evaporator 9 and the second absorber 8 are equipped with the second solution pump 14, the first evaporator 7 and second in another cavity
The water as refrigerant of evaporator 9 is connected by cryogen communicating pipe 12.Water at low temperature flows through the first evaporator 7 and lowers the temperature；Middle warm water point two-way, all the way
First series connection flows through the second evaporator 9 and the first absorber 6（First lower the temperature and heat up afterwards）Afterwards, pass through condenser 3 to heat up, another road stream
Heated up through the second absorber 8；High temperature driven thermal source flows through high pressure generator 2, and release thermal discharge drives whole unit operation.Unit
During operation, the water as refrigerant after being extracted out by the first cryogenic fluid pump 10 under the first evaporator 7 and the spray of the top of the second evaporator 9, respectively with
The middle warm water heat exchange in the water at low temperature and the heat-transfer pipe of the second evaporator 9 in the heat-transfer pipe of the first evaporator 7 is flowed through, by its temperature drop
It is low, the first absorber 6 and the second absorber 8 are respectively enterd after itself being then vaporized into refrigerant vapour, by lithium-bromide solution therein
Absorb and discharge the lithium-bromide solution of the middle warm water during heat flows through its heat-transfer pipe, the first absorber 6 and the second absorber 8
Concentration is thinning after refrigerant vapour is absorbed.Weak solution in first absorber 6 is extracted out and handed over through high warm by the first solution pump 11
The heat exchange of parallel operation 4 enters high pressure generator 2 after heating up, and is exchanged heat cooling through high-temperature heat exchanger 4 again after high temperature heat source heating concentration
Return to the first absorber 6.Weak solution in second absorber 8 is extracted out and exchanged heat through low temperature heat exchanger 5 by the second solution pump 14
Enter low pressure generator 1 after intensification, passed through again after the high temperature refrigerant vapour heating concentration produced by solution concentration in high pressure generator 2
The heat exchange cooling of low temperature heat exchanger 5 returns to the second absorber 8.And the refrigerant vapour that solution concentration is produced in high pressure generator 2 exists
Condensed after heat is discharged in low pressure generator 1, the refrigerant vapour produced with solution concentration in low pressure generator 1 enters condenser
Lowered the temperature by middle warm water in 3 and condense, the water as refrigerant being condensed into returns to the second evaporator 9 and returns to first by cryogen communicating pipe 12
In evaporator 7.
In two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units shown in Fig. 2, middle warm water is a point two-way, all the way
After first series connection flows through the second evaporator 9 and the first absorber 6, condenser 3 is passed through, another road flows through the second absorber 8；Its
Can the tunnels of Shi Fen tri-, all the way series connection flow through the second evaporator 9 and the first absorber 6, another two-way flows separately through the He of the second absorber 8
Condenser 3；It can also be a point two-way, and series connection all the way flows through the second evaporator 9 and the first absorber 6, another road random order
Series connection flows through the second absorber 8 and condenser 3；It can also be a point two-way, and series connection all the way flows through the second evaporator 9 and first and inhales
Device 6 is received, another road then flows through any one in the second absorber 8 and condenser 3, and two path water passes through the second absorption after converging
Another in device 8 and condenser 3；Or point two-way, after first series connection flows through the second evaporator 9 and the first absorber 6 all the way,
Pass through any one in the second absorber 8 and condenser 3, another road then flows through another in the second absorber 8 and condenser 3
One.
Fig. 3 is two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units involved by the utility model（Following letter
Claim superposition type economic benefits and social benefits unit, or unit）Another exemplary application map, the unit is by low pressure generator 1, high pressure generator 2, cold
Condenser 3, high-temperature heat exchanger 4, low temperature heat exchanger 5, the first absorber 6, the first evaporator 7, the second absorber 8, second steam
Hair device 9, the first cryogenic fluid pump 10, the first solution pump 11, cryogen communicating pipe 12, the second solution pump 14, the second cryogenic fluid pump 15 and control
Pipeline, valve of system processed and connecting components etc. are constituted.First evaporator 7 and the first absorber 6 are matched somebody with somebody in a cavity
Standby first cryogenic fluid pump 10 and the first solution pump 11, the second evaporator 9 and the second absorber 8 are equipped with another cavity
The water as refrigerant of the second cryogenic fluid pump 15 and the second solution pump 14, the first evaporator 7 and the second evaporator 9 is connected by cryogen communicating pipe 12
It is logical.Water at low temperature flows through the first evaporator 7 and lowers the temperature；Middle warm water point two-way, all the way first series connection flows through the second evaporator 9 and first and absorbs
Device 6（First lower the temperature and heat up afterwards）Afterwards, pass through condenser 3 to heat up, another road flows through the second absorber 8 and heats up；High temperature driven thermal source
High pressure generator 2 is flowed through, release thermal discharge drives whole unit operation.During unit operation, after being extracted out by the first cryogenic fluid pump 10 from
The lower water as refrigerant of the spray of first evaporator 7 and the water as refrigerant after being extracted out by the second cryogenic fluid pump 15 under the spray of the top of the second evaporator 9, divide
Do not exchanged heat with the middle warm water in the water at low temperature and the heat-transfer pipe of the second evaporator 9 flowed through in the heat-transfer pipe of the first evaporator 7, by its temperature
Reduce, the first absorber 6 and the second absorber 8 are respectively enterd after itself being then vaporized into refrigerant vapour, it is molten by lithium bromide therein
Liquid absorbs and discharges the middle warm water during heat flows through its heat-transfer pipe, and the lithium bromide of the first absorber 6 and the second absorber 8 is molten
Liquid concentration after refrigerant vapour is absorbed is thinning.Weak solution in first absorber 6 is extracted out and warmed through height by the first solution pump 11
The heat exchange of exchanger 4 enters high pressure generator 2 after heating up, and is exchanged heat drop through high-temperature heat exchanger 4 again after high temperature heat source heating concentration
Temperature returns to the first absorber 6.Weak solution in second absorber 8 is extracted out and changed through low temperature heat exchanger 5 by the second solution pump 14
Heat enters low pressure generator 1 after heating up, after the high temperature refrigerant vapour heating concentration produced by solution concentration in high pressure generator 2 again
The second absorber 8 is returned to through the heat exchange cooling of low temperature heat exchanger 5.And the refrigerant vapour that solution concentration is produced in high pressure generator 2
Condensed after discharging heat in low pressure generator 1, the refrigerant vapour produced with solution concentration in low pressure generator 1 enters condensation
Lowered the temperature by middle warm water in device 3 and condense, the water as refrigerant being condensed into returns to the second evaporator 9 and by returning to the cryogen communicating pipe 12
In one evaporator 7.
In two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units shown in Fig. 3, middle warm water is a point two-way, all the way
After first series connection flows through the second evaporator 9 and the first absorber 6, condenser 3 is passed through, another road flows through the second absorber 8；Its
Can the tunnels of Shi Fen tri-, all the way series connection flow through the second evaporator 9 and the first absorber 6, another two-way flows separately through the He of the second absorber 8
Condenser 3；It can also be a point two-way, and series connection all the way flows through the second evaporator 9 and the first absorber 6, another road random order
Series connection flows through the second absorber 8 and condenser 3；It can also be a point two-way, and series connection all the way flows through the second evaporator 9 and first and inhales
Device 6 is received, another road then flows through any one in the second absorber 8 and condenser 3, and two path water passes through the second absorption after converging
Another in device 8 and condenser 3；Or point two-way, after first series connection flows through the second evaporator 9 and the first absorber 6 all the way,
Pass through any one in the second absorber 8 and condenser 3, another road then flows through another in the second absorber 8 and condenser 3
One.
Claims (3)
1. a kind of two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units, including：Low pressure generator（1）, high pressure occur
Device（2）, condenser（3）, high-temperature heat exchanger（4）, low temperature heat exchanger（5）, the first absorber（6）, the first evaporator（7）、
Second absorber（8）, the second evaporator（9）, the first cryogenic fluid pump（10）, the first solution pump（11）With cryogen communicating pipe（12）, its
It is characterised by：First evaporator（7）With the first absorber（6）In a cavity, and it is equipped with the first solution pump（11）, second
Evaporator（9）With the second absorber（8）In another cavity, and it is equipped with the second solution pump（14）；First evaporator（7）With
Second evaporator（9）Water as refrigerant by cryogen communicating pipe（12）Connection；First solution pump（11）By the first absorber（6）It is dilute molten
Liquid is extracted out, through high-temperature heat exchanger（4）It is sent to high pressure generator（2）, solution is again through high-temperature heat exchanger after concentration（4）Into
One absorber（6）；Second solution pump（14）By the second absorber（8）Weak solution extract out, through low temperature heat exchanger（5）It is sent to low
Pressure generator（1）, solution is again through low temperature heat exchanger after concentration（5）Into the second absorber（8）；High pressure generator（2）In it is molten
The refrigerant vapour that liquid concentration is produced is by low pressure generator（1）Enter condenser after exothermic condensation（3）, low pressure generator（1）In
The refrigerant vapour that solution concentration is produced is also into condenser（3）, the second evaporator is returned after condensation（9）With the first evaporator
（7）；High temperature heat source flows through high pressure generator（2）；Water at low temperature flows through the first evaporator（7）；The middle tunnels of warm water Shi Fen tri-, connect all the way
Flow through the second evaporator（9）With the first absorber（6）, another two-way flows separately through the second absorber（8）And condenser（3）；Or：
Middle warm water is a point two-way, and series connection all the way flows through the second evaporator（9）With the first absorber（6）, another road random order serial flow
Through the second absorber（8）And condenser（3）；Or：Middle warm water is a point two-way, and series connection all the way flows through the second evaporator（9）With
One absorber（6）, another road then flows through the second absorber（8）And condenser（3）In any one, two path water flows again after converging
Through the second absorber（8）And condenser（3）In another；Or：Middle warm water is a point two-way, and first series connection flows through the second steaming all the way
Hair device（9）With the first absorber（6）Afterwards, the second absorber is passed through（8）And condenser（3）In any one, another road is then
Flow through the second absorber（8）And condenser（3）In another.
2. a kind of two sections of superposition types double-effect lithium bromide absorption type refrigerating heat pump unit according to claim 1, its feature exists
In：By cryogenic fluid pump（10）From the first evaporator after extraction（7）With the second evaporator（9）Water as refrigerant under the spray of top, respectively with stream
Through the first evaporator（7）Water at low temperature and the second evaporator in heat-transfer pipe（9）Middle warm water heat exchange in heat-transfer pipe.
3. a kind of two sections of superposition types double-effect lithium bromide absorption type refrigerating heat pump unit according to claim 1, its feature exists
In：By cryogenic fluid pump（10）From the first evaporator after extraction（7）Top spray under water as refrigerant and by the second cryogenic fluid pump（15）After extraction
From the second evaporator（9）Top spray under water as refrigerant, respectively with flow through the first evaporator（7）Water at low temperature in heat-transfer pipe and second
Evaporator（9）Middle warm water heat exchange in heat-transfer pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621238912.3U CN206247689U (en) | 2016-11-19 | 2016-11-19 | Two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201621238912.3U CN206247689U (en) | 2016-11-19 | 2016-11-19 | Two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482383A (en) * | 2016-11-19 | 2017-03-08 | 双良节能***股份有限公司 | Two-stage nitration superposition type double-effect lithium bromide absorption type refrigerating heat pump unit |
-
2016
- 2016-11-19 CN CN201621238912.3U patent/CN206247689U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106482383A (en) * | 2016-11-19 | 2017-03-08 | 双良节能***股份有限公司 | Two-stage nitration superposition type double-effect lithium bromide absorption type refrigerating heat pump unit |
| CN106482383B (en) * | 2016-11-19 | 2019-07-19 | 双良节能***股份有限公司 | Two sections of superposition type double-effect lithium bromide absorption type refrigerating heat pump units |
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