CN208154873U - The solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect - Google Patents
The solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect Download PDFInfo
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- CN208154873U CN208154873U CN201820638822.6U CN201820638822U CN208154873U CN 208154873 U CN208154873 U CN 208154873U CN 201820638822 U CN201820638822 U CN 201820638822U CN 208154873 U CN208154873 U CN 208154873U
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Abstract
The utility model relates to a kind of solution series type lithium bromide absorption type refrigeration heat pump units of variable effect, belong 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）, absorber（6）, evaporator（7）, solution pump（8）, cryogenic fluid pump（9）, single-action condenser（10）, medium temperature water regulating valve（11）, medium temperature water regulating valve adjusts the medium temperature water for entering single-action condenser, and the high temperature refrigerant vapour parallel connection in high pressure generator enters low pressure generator and single-action condenser.The unit both can economic benefits and social benefits operating condition operation, can also the compound single-action of economic benefits and social benefits or full single-action operating condition operation.
Description
Technical field
The utility model relates to a kind of solution series type lithium bromide absorption type refrigeration heat pump units of variable effect.Belong to air-conditioning
Equipment technical field.
Background technique
Lithium bromide absorbing type refrigeration/heat pump unit of existing single driving heat source（Hereinafter referred to as unit）There is single-effect type
（Hereinafter referred to as single-effect type unit）And dual effect type（Hereinafter referred to as dual effect type unit）Two kinds of structural shapes.
Single-effect type unit is as shown in Figure 1, by low pressure generator 1, condenser 3, low temperature heat exchanger 5, absorber 6, evaporation
Device 7, solution pump 8, cryogenic fluid pump 9 and control system（It is not shown in the figure）And pipeline, the valve of connecting components are constituted.Low temperature water flow
Cool down through evaporator 7；Middle stream of warm water heats up through absorber 6 and condenser 3；Driving heat source flows through low pressure generator 1, discharges heat
Heating concentration lithium-bromide solution.When unit is run, the water as refrigerant under being extracted out and sprayed at the top of evaporator 7 by cryogenic fluid pump 9 absorbs stream
Heat through water at low temperature in 7 heat-transfer pipe of evaporator, is vaporized into after refrigerant vapour to enter in absorber 6 and is brominated the suction of lithium concentrated solution
It receives, the heat of release is walked by the middle warm water absorption band flowed through in 6 heat-transfer pipe of absorber, and lithium bromide concentrated solution absorbs refrigerant vapour
Concentration is thinning afterwards, is extracted out and is sent into low pressure generator 1 through low temperature heat exchanger 5 by solution pump 8 and heats concentration by driving heat source,
The refrigerant vapour that concentration comes out enters in condenser 3 to be returned in evaporator 7 after the cooling condensation of middle warm water, and the bromination after being concentrated
Lithium solution then returns in absorber 6 through low temperature heat exchanger 5.
Dual effect type unit as shown in Fig. 2, by low pressure generator 1, high pressure generator 2, condenser 3, high-temperature heat exchanger 4,
Low temperature heat exchanger 5, absorber 6, evaporator 7, solution pump 8, cryogenic fluid pump 9 and control system（It is not shown in the figure）And each portion of connection
Pipeline, the valve of part are constituted.Water at low temperature flows through the cooling of evaporator 7；Middle stream of warm water heats up through absorber 6 and condenser 3；Driving heat
Source stream discharges heat and lithium-bromide solution is concentrated through high pressure generator 2.When unit is run, extracted out by cryogenic fluid pump 9 and from evaporation
Water as refrigerant under spraying at the top of device 7 absorbs the heat for flowing through water at low temperature in 7 heat-transfer pipe of evaporator, enters suction after being vaporized into refrigerant vapour
It receives and is brominated the absorption of lithium concentrated solution in device 6, the heat of release is walked by the middle warm water absorption band flowed through in 6 heat-transfer pipe of absorber, and
Concentration is thinning after lithium bromide concentrated solution absorbs refrigerant vapour, is extracted out by solution pump 8 and through low temperature heat exchanger 5, high temperature heat exchange
It is sent into high pressure generator 2 after the heat exchange heating of device 4 and is tentatively heated concentration by driving heat source, the lithium-bromide solution after initial concentration is again
Enter low pressure generator 1 after the heat exchange cooling of high-temperature heat exchanger 4, is wherein being concentrated by lithium-bromide solution in high pressure generator 2
The high temperature refrigerant vapour of generation heats concentration again, and the lithium-bromide solution after concentration most returns to absorption through low temperature heat exchanger 5 afterwards
In device 6, and the high temperature refrigerant vapour that solution concentration generates in high pressure generator 2 is dense as heat source heating in low pressure generator 1
After contracting lithium-bromide solution, cooling itself is condensed into water as refrigerant, together with the refrigerant vapour that solution is concentrated out in low pressure generator 1
Into condenser 3, returned in evaporator 7 after the cooling condensation of middle warm water.
When driving heat source grade is relatively high or be water at low temperature and middle warm water nominal condition parameter it is relatively good when, unit
It can choose dual effect type structure, the efficiency of energy utilization of driving heat source is high at this time, up to 1.4 or so.When driving heat source grade ratio
When nominal condition parameter lower or that be water at low temperature and middle warm water is poor, unit can only then select single-effect type structure, at this time
The efficiency of energy utilization of driving heat source is lower, and only 0.8 or so.When the structural shape of unit by the manufacturing once it is determined that and come out
After, during its entire service life, efficiency of energy utilization is also substantially fixed.
In some cases, due to the grade of driving heat source or be water at low temperature and middle warm water nominal condition ginseng
Number it is poor, unit can only select single-effect type structure, although or can choose dual effect type structure, its cost is too high, comprehensive
Conjunction considers still select single-effect type structure.Single-effect type unit is although at low cost, but its efficiency of energy utilization is also low.
And in the use process of unit, the operating parameter of water at low temperature and middle warm water is to occur with environment temperature and using needing
Variation or even driving heat source grade can also change, so that the parameter in some periods is to be suitble to economic benefits and social benefits work
Condition operation, can existing single-effect type unit this structural shape once chosen, this will not occur for efficiency of energy utilization
Variation in matter, this will result in certain waste in using energy source.If there is a kind of unit of new structural shape, work as operating condition
It when parameter is poor, can be run, when duty parameter improves, and can be run with economic benefits and social benefits patterns, then with single-action pattern
Not only equipment cost can be reduced, but also the utilization efficiency of drive energy can be improved, it is energy saving.
Utility model content
The purpose of this utility model is exactly to design a kind of solution series type lithium bromide absorption type refrigeration heat pump machine of variable effect
Group, when operating parameter is preferable, the operation of economic benefits and social benefits operating condition, efficiency of energy utilization height；It, can the compound list of economic benefits and social benefits after operating parameter is deteriorated
Operating condition operation or single-action operating condition operation completely are imitated, improves the cooling and warming ability of unit by reducing efficiency of energy utilization.
What the purpose of this utility model was realized in：A kind of solution series type lithium bromide absorbing type refrigeration heat of variable effect
Pump assembly, including：Low pressure generator, high pressure generator, condenser, high-temperature heat exchanger, low temperature heat exchanger, absorber, steaming
Send out device, solution pump, cryogenic fluid pump, single-action condenser, medium temperature water regulating valve.Water at low temperature flows through evaporator, middle stream of warm water through absorber,
Condenser, single-action condenser, driving heat source flow through high pressure generator.When operating parameter is preferable, medium temperature water regulating valve is closed, in
Warm water is not passed through single-action condenser, thus single-action condenser does not work, and other component parts of unit constitute one pair at this time
Imitate the unit of operating condition operation.When operating parameter is deteriorated, medium temperature water regulating valve is gradually opened, is adjusted into single-action condenser
Warm water flow, unit operation is added in single-action condenser, with high pressure generator, high-temperature heat exchanger, low temperature heat exchanger, absorption
Device, evaporator, solution pump and cryogenic fluid pump constitute a single-action operating condition operational process, thus on the basis of former economic benefits and social benefits operating condition operation
On, increase single-action operating condition operation, at this time in high pressure generator lithium-bromide solution concentration generate the parallel connection of high temperature refrigerant vapour into
Enter low pressure generator and single-action condenser.With the further variation of operating parameter, the aperture of medium temperature water regulating valve is gradually increased,
Medium temperature water flow into single-action condenser increases, and single-action operating condition runs proportion can be increasing, until complete single-action work
Condition operation（At this time because operating condition is too poor, lithium-bromide solution cannot be concentrated in low pressure generator, thus molten in high pressure generator
The high temperature refrigerant vapour that liquid concentration generates fully enters the condensation that cools down in single-action condenser）.
The utility model has the beneficial effects that：
A kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect, under identical operating condition, with dual effect type machine
Group is compared, and equipment cost is low.It economic benefits and social benefits operating condition can run, efficiency of energy utilization is high completely when operating condition is preferable；Work as operation
When operating condition is poor, the ratio of single-action operating condition operation, or even single-action operating condition operation completely can be increased, thus by reducing using energy source
Efficiency meets the needs of user is to unit fan-out capability.
Detailed description of the invention
Fig. 1 is the working principle diagram of existing single-effect lithiumbromide absorption type refrigeration heat pump unit.
Fig. 2 is the working principle diagram of existing dual effect type lithium bromide absorption type refrigeration heat pump unit.
Fig. 3 is a kind of application example of the solution series type lithium bromide absorption type refrigeration heat pump unit of the variable effect of this patent.
Fig. 4 is that another application of the solution series type lithium bromide absorption type refrigeration heat pump unit of the variable effect of this patent is real
Example.
Appended drawing reference in figure：
Low pressure generator 1, high pressure generator 2, condenser 3, high-temperature heat exchanger 4, low temperature heat exchanger 5, absorber 6,
Evaporator 7, solution pump 8, cryogenic fluid pump 9, single-action condenser 10, medium temperature water regulating valve 11.
For water at low temperature into A1, water at low temperature goes out A2, and for middle warm water into B1, middle warm water goes out B2, and driving heat source goes out into C1, driving heat source
C2。
Specific embodiment
Embodiment 1：
Referring to Fig. 3, the solution series type lithium bromide absorption type refrigeration heat pump unit of effect can be changed involved in the utility model
（Hereinafter referred to as unit）, the unit is by low pressure generator 1, high pressure generator 2, condenser 3, high-temperature heat exchanger 4, Low Temperature Thermal friendship
Parallel operation 5, absorber 6, evaporator 7, solution pump 8, cryogenic fluid pump 9, single-action condenser 10, medium temperature water regulating valve 11 and control system
（It is not shown in the figure）And pipeline, the valve of connecting components are constituted.Water at low temperature flows through evaporator 7, and middle warm water first connects and flows through suction
Device 6 and condenser 3 are received, is finally adjusted again by medium temperature water regulating valve 11 to adjust the flow for flowing through single-action condenser 10（All
It is not passed through or is partly or entirely to flow through）, driving heat source flows through high pressure generator 2.When unit is run, extracted out by cryogenic fluid pump 9
And the water as refrigerant under spraying at the top of evaporator 7 absorbs the heat for flowing through water at low temperature in 7 heat-transfer pipe of evaporator, is vaporized into refrigerant vapour
Enter in absorber 6 afterwards and is brominated the absorption of lithium concentrated solution, the middle warm water band that the heat of release is flowed through in 6 heat-transfer pipe of absorber
It walks, concentration is thinning after lithium bromide concentrated solution absorbs refrigerant vapour, is extracted out by solution pump 8 and through low temperature heat exchanger 5 and high warm
Exchanger 4 be sent into high pressure generator 2 in by driving heat source heat be concentrated, the high temperature refrigerant vapour for being concentrated out divide two-way parallel connection into
Enter in single-action condenser 10 and low pressure generator 1, and the lithium-bromide solution after being concentrated then enters low pressure through high-temperature heat exchanger 4 and sends out
Raw device 1 is wherein heating concentration by the high temperature refrigerant vapour that solution concentration generates in high pressure generator 2, after concentration again
Solution finally returns to absorber 6 through low temperature heat exchanger 5 again, and the high temperature cryogen that solution concentration generates in high pressure generator 2 steams
After vapour heats concentrate solution as heat source in low pressure generator 1, cooling condensation itself is concentrated with solution in low pressure generator 1
The refrigerant vapour of generation enters condenser 3 together, is returned to evaporator 7 after the cooling condensation of middle warm water.And enter single-action condenser
High temperature refrigerant vapour in 10 is then directly cooled down by middle warm water and condenses, also returns to evaporator 7.
In the solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect shown in Fig. 3, middle warm water is first to connect
Absorber 6 and condenser 3 are flowed through, finally adjusts the flow for flowing through single-action condenser 10 by medium temperature water regulating valve 11 again；Its
It is also possible to series connection and flows through absorber 6 and condenser 3, list is flowed through to adjust by medium temperature water regulating valve 11 between the two parts
Imitate the flow of condenser 10；Either first series connection flow through condenser 3 and absorber 6, finally again by medium temperature water regulating valve 11 come
Adjust the flow for flowing through single-action condenser 10；
In the solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect shown in Fig. 3, into low pressure generator 1
The water as refrigerant that cooling condensation generates after middle heating concentrate solution is entered in condenser 3, is also possible to enter single-action condenser
10。
In the solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect shown in Fig. 3, in single-action condenser 10
Water as refrigerant be to be returned directly in evaporator 7, be also possible to be introduced into condenser 3, enter back into evaporator 7.
Embodiment 2：
Referring to fig. 4, it can be changed the solution series type lithium bromide absorption type refrigeration heat pump unit of effect involved in the utility model
（Hereinafter referred to as unit）, with embodiment 1（Fig. 3）Unique difference, be that middle warm water parallel connection flows through absorber 6 and condenser 3, stream
Being adjusted again by medium temperature water regulating valve 11 come so that its whole is not passed through or is partly or entirely to flow all the way through condenser 3
Through single-action condenser 10；
Either parallel connection flows through absorber 6 and condenser 3, flows through list by medium temperature water regulating valve 11 again after converging to adjust
Imitate the flow of condenser 10；Either parallel connection flows through absorber 6, condenser 3 and single-action condenser 10, wherein single-action condenser 10
Flow is adjusted by medium temperature water regulating valve 11 all the way.
Claims (9)
1. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect, including：Low pressure generator（1）, high pressure
Generator（2）, condenser（3）, high-temperature heat exchanger（4）, low temperature heat exchanger（5）, absorber（6）, evaporator（7）, solution
Pump（8）, cryogenic fluid pump（9）；It is characterized in that：It further includes single-action condenser（10）With medium temperature water regulating valve（11）；
Water at low temperature flows through evaporator（7）, middle stream of warm water is through absorber（6）, condenser（3）, single-action condenser（10）, driving heat source
Flow through high pressure generator（2）；
Solution pump（8）By absorber（6）In lithium-bromide solution extraction, through low temperature heat exchanger（5）And high-temperature heat exchanger（4）
It is sent into high pressure generator（2）In be heated concentration, the lithium-bromide solution after concentration is again through high-temperature heat exchanger（4）It is sent out into low pressure
Raw device（1）In be concentrated again, the solution after concentration is again through low temperature heat exchanger（5）Return to absorber（6）；
High pressure generator（2）The high temperature refrigerant vapour parallel connection that middle lithium-bromide solution concentration generates enters low pressure generator（1）And list
Imitate condenser（10）, low pressure generator（1）The refrigerant vapour that middle solution concentration generates enters condenser（3）In, after cooling condensation
Return to evaporator（7）.
2. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Middle warm water serial flow is through absorber（6）And condenser（3）, then pass through medium temperature water regulating valve（11）List is flowed through to adjust
Imitate condenser（10）Flow.
3. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Middle warm water serial flow is through absorber（6）And condenser（3）, pass through medium temperature water regulating valve between the two parts（11）
Single-action condenser is flowed through to adjust（10）Flow.
4. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Middle warm water first connects and flows through condenser（3）And absorber（6）, then pass through medium temperature water regulating valve（11）It is flowed through to adjust
Single-action condenser（10）Flow.
5. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：The parallel connection of middle warm water elder generation flows through absorber（6）And condenser（3）, then wherein pass through medium temperature water regulating valve again all the way
（11）Single-action condenser is flowed through to adjust（10）Flow.
6. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Middle warm water parallel connection flows through absorber（6）And condenser（3）, pass through medium temperature water regulating valve after converging again（11）To adjust
Flow through single-action condenser（10）Flow.
7. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Middle warm water is that parallel connection flows through absorber（6）, condenser（3）With single-action condenser（10）, wherein single-action condenser（10）
Pass through medium temperature water regulating valve all the way（11）To adjust flow.
8. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Into low pressure generator（1）The water as refrigerant that cooling condensation generates after middle heating concentrate solution enters condenser（3）, or
Person enters single-action condenser（10）.
9. a kind of solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect according to claim 1, special
Sign is：Single-action condenser（10）In water as refrigerant be to be returned directly to evaporator（7）In, or it is introduced into condenser（3）, then
Into evaporator（7）.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820638822.6U CN208154873U (en) | 2018-05-02 | 2018-05-02 | The solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect |
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| CN201820638822.6U CN208154873U (en) | 2018-05-02 | 2018-05-02 | The solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534393A (en) * | 2018-05-02 | 2018-09-14 | 双良节能系统股份有限公司 | The solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect |
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2018
- 2018-05-02 CN CN201820638822.6U patent/CN208154873U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108534393A (en) * | 2018-05-02 | 2018-09-14 | 双良节能系统股份有限公司 | The solution series type lithium bromide absorption type refrigeration heat pump unit of variable effect |
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