CN207585131U - A kind of second-kind absorption-type heat pump of solar energy auxiliary heating - Google Patents
A kind of second-kind absorption-type heat pump of solar energy auxiliary heating Download PDFInfo
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- CN207585131U CN207585131U CN201721474490.4U CN201721474490U CN207585131U CN 207585131 U CN207585131 U CN 207585131U CN 201721474490 U CN201721474490 U CN 201721474490U CN 207585131 U CN207585131 U CN 207585131U
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- heat
- heat exchanger
- evaporator
- regenerator
- condenser
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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 discloses a kind of second-kind absorption-type heat pump of solar energy auxiliary heating, which includes evaporator, condenser, heat exchanger, solar thermal collector, absorber, heat exchanger, regenerator and cooler；External sewage is discharged after entering evaporator heat exchange, and evaporator is connected with condenser, and the shell-side outlet of evaporator is connect with absorber；Absorber, heat exchanger and regenerator form heat-exchanging loop；Sewage flows through the regeneration that regenerator ensures lithium-bromide solution in heat exchanger outside another way, and regenerator is connect with condenser；Condenser, cooler and pump form cooling circuit；Heat medium water promotes 5~8 DEG C of inflow solar thermal collectors after entering absorber, and the temperature of heat medium water is risen to after setting value and is re-introduced into heat exchanger by solar thermal collector, and heating water is heated to continue to recycle in pipeline after setting value by heat medium water in heat exchanger.Operating cost can be reduced more than 50% by the utility model, substantially shorten payoff period, have great economic benefit.
Description
Technical field
The utility model is related to the oil extraction-generated waste water technical field of waste heat utilization of petroleum industry, and in particular to a kind of to utilize the sun
It can assist the second kind absorption type mixing heat pump of heating.
Background technology
At present, the mined water content in crude oil of oil field at home is very high (generally more than 90%), and crude oil is from ground
Under produce after the multi-purpose station in region is aggregated by terminal on the way crude oil is carried out dehydrating.Domestic diverse geographic location
Crude oil be not quite similar due to physical property, so treatment process is also not exclusively the same.But main process is the methods of passing through sedimentation
It realizes water-oil separating, the moisture content of crude oil is reduced to less than 0.03%.
In oil water separation process, the sewage after separation still has certain heat (38~45 DEG C), after simple process
It discharges or is recycled into oil well after being aggregated into sewage treatment plant's processing, if the thermal energy in sewage efficiently use is
A kind of waste to thermal energy.
At present, it is directly using the direct temperature raising of compression heat pump using low grade heat energy method one kind, this method really may be used
To utilize the part of waste heat, but power consumption is very big, and since electricity is secondary energy sources, grade is higher, is used directly to promote potential temperature
Economy is very improper.Another method is the heat extracted in reinjected water, for industry after being heated up by absorption heat pump
Production and civil heating, absorption heat pump although basic not consuming electric power, but due to its technical principle limit temperature rise it is limited, it is impossible to
The technology is promoted on a large scale.
Absorption heat pump is divided into as first-class absorption type heat pump and second-kind absorption-type heat pump.First-class absorption type heat pump is again
Referred to as increase heating type heat pump, it is to recycle low temperature exhaust heat heat by driving heat source of high temperature heat, then output can in the form of middle potential temperature
With heat；Second-kind absorption-type heat pump is also known as temperature-increasing type heat pump, it is the which part heat using medium temperature waste heat as driving heat source
Heat can be used with high temperature form output, remaining is discharged into the form of more low temperature position in environment.
Utility model content
In view of this, the utility model provides a kind of second-kind absorption-type heat pump of solar energy auxiliary heating, is ensureing
In the case of cost of investment increase rate very little, operating cost is reduced more than 50%, substantially shortens payoff period, there is huge warp
Ji benefit.Overcome the shortcomings that prior art energy consumption is big, costly, using the less energy plus solar energy can obtain it is more
Available thermal energy.
A kind of second-kind absorption-type heat pump of solar energy auxiliary heating, the heat pump include evaporator, condenser, heat exchanger,
Solar thermal collector, absorber, heat exchanger, regenerator and cooler；
External sewage is discharged after entering the tube side heat exchange of evaporator, and the shell side inlet of evaporator is connected with condenser, dirty
The condensed water heating evaporation that water will enter in evaporator shell side from condenser, the shell-side outlet of evaporator are connect with absorber；Institute
State absorber, heat exchanger forms heat-exchanging loop after being connected with regenerator by lithium-bromide solution pipeline；Sewage outside another way
The regeneration that regenerator ensures lithium-bromide solution in heat exchanger is flowed through, regenerator is connect by water vapour pipeline with condenser；It is described
Condenser, cooler form cooling circuit with pumping, and the cooling liquid after heat exchange enters cooler cycle after being pressurizeed by pump cold
But it arrives set temperature and is recycled into condenser again；
Heat medium water enters absorber, and absorber flows into solar thermal collector after the temperature of heat medium water is promoted 5~8 DEG C, too
The temperature of heat medium water is risen to after setting value the shell side inlet for being re-introduced into heat exchanger by positive energy heat collector, and the heat medium water after heating is changing
External heating water is heated to continue to recycle in pipeline after setting value in hot device, heating water is exported by heat exchanger shell pass and exported
For users to use.
Further, there are two circulation lines arranged side by side between the absorber and heat exchanger, heat exchanger flow direction is inhaled
It receives and pump is installed on the pipeline in device direction；There are two circulation lines arranged side by side, heat exchanger flow direction between heat exchanger and regenerator
Throttle valve is installed on the pipeline in regenerator direction.
Further, pump is connected on the pipeline between the evaporator and condenser, it is therefore an objective to by the condensation in condenser
Water is pumped into evaporator.
Advantageous effect：
1st, absorption heat pump is combined by the utility model with two kinds of technologies of solar energy heating, using absorption heat pump technology as
Basis, the cooperation solar thermal collector auxiliary gain of heat, heats required potential temperature.In the situation for ensureing cost of investment increase rate very little
Under, operating cost is reduced more than 50%, substantially shortens payoff period, there is great economic benefit.
2nd, the utility model has good operating characteristics, very strong followability and self-balance ability, when external process parameter
When (temperature, pressure, hot water inlet's temperature and the flow of such as waste heat source, circulating cooling water temperature) remains unchanged, heat pump can be quickly
Into stable state, and run very steady.Once external process parameter changes, (such as lithium bromide is molten for heat pump inner parameter
Concentration, evaporating pressure, condensing pressure of liquid etc.) it will be automatically adjusted to new equalization point rapidly and enter stable state, without behaviour
Make any adjusting as personnel.
Description of the drawings
Fig. 1 is the overall structure diagram of the utility model；
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in detail.
As shown in Figure 1, the utility model provides a kind of second-kind absorption-type heat pump of solar energy auxiliary heating, the heat
Pump includes evaporator, condenser, heat exchanger, solar thermal collector, absorber, heat exchanger, regenerator and cooler；
External sewage is discharged after entering the tube side heat exchange of evaporator, and the shell side inlet of evaporator is connected with condenser, steams
It sends out to connect on the pipeline between device and condenser and pump, it is therefore an objective to which the condensed water in condenser is pumped into evaporator；Sewage will be from
Condenser enters the condensed water heating evaporation in evaporator shell side, and the shell-side outlet of evaporator is connect with absorber；The absorption
Device, heat exchanger and regenerator form heat-exchanging loop after being connected by lithium-bromide solution pipeline, between absorber and heat exchanger
There are two circulation lines arranged side by side, heat exchanger, which flows to, installs pump on the pipeline in absorber direction；Heat exchanger and regenerator it
Between have two circulation lines arranged side by side, heat exchanger flows to and installs throttle valve on the pipeline in regenerator direction.
Sewage flows through the regeneration that regenerator ensures lithium-bromide solution in heat exchanger outside another way, and regenerator passes through water vapour
Pipeline is connect with condenser；The condenser, cooler and pump form cooling circuit, and the cooling liquid after heat exchange is added by pump
After pressure condenser again is recycled into set temperature into cooler circulating cooling；
Heat medium water enters absorber, and absorber flows into solar thermal collector after the temperature of heat medium water is promoted 5~8 DEG C, too
The temperature of heat medium water is risen to after setting value the shell side inlet for being re-introduced into heat exchanger by positive energy heat collector, and the heat medium water after heating is changing
External heating water is heated to continue to recycle in pipeline after setting value in hot device, heating water is exported by heat exchanger shell pass and exported
For users to use.
Operation principle：First, the lithium bromide weak solution 5 from solution heat exchanger enters regenerator, is made by throttle valve
With pressure reduction causes lithium bromide weak solution that partial gasification occurs, and vapor liquid equilibrium is rapidly reached at regenerator liquid distribution plate, and reach
Minimum temperature into regenerator；Subsequent lithium bromide weak solution absorbs the heat discharged in pipe outside the heat exchanger tube of regenerator
It is concentrated by evaporation, lithium-bromide solution concentration gradually rises, temperature raising；Lithium bromide concentrated solution 6 after concentration closely enters solution heat exchanger
It exchanges heat with the lithium bromide weak solution 4 from absorber, the lithium bromide concentrated solution 7 after heat exchange is pumped to absorber；Bromine in regenerator
Change after the steam 8 that lithium weak solution concentration process generates exports and enter condenser；Regenerator Bottomhole pressure is oil field re-injection oil well
38~45 DEG C of the sewage 14 generated, by exchanging heat with lithium-bromide solution outside pipe, outlet 15 temperature of sewage is 28~35 DEG C.
From regenerator generate into condenser steam 8, by in pipe cool down liquid 13 carry out heat exchange be cooled to it is cold
Condensate 9, the condensed water 10 after being pressurizeed by pump are heated again evaporation into evaporator；And exchange heat after cooling liquid 11 by into
Enter pump pressurization, the cooling liquid 12 after pressurization is recycled into condenser into cooler circulating cooling to set temperature.
38~45 DEG C of oilfield sewage 1 enters evaporator tube side, and heat is used for heating the condensed water 10 of shell side, after heat exchange
Sewage 2 go out evaporator temperature for 28~35 DEG C；Evaporator shell side is to come the condensed water 10 of condenser and following certainly for evaporator
Ring water mixed liquid body after distribution grid cloth liquid, uniformly flows downward along pipe outer wall falling liquid film, and saturation is progressively reached by heat exchange
Shape simultaneously starts to evaporate, and generates steam 3 and is absorbed into absorber, and unevaporated water flows back into evaporator shell side inlet, as
The self-circulating water of evaporator continues next heat cycles.
After the water vapour 3 that evaporator generates enters absorber, full of the entire shell side space including above liquid distribution plate；
Lithium bromide concentrated solution 7 from solution heat exchanger, is admitted to absorber distribution grid, and solution is in unsaturated state at this time, to
Above up to distribution grid and in the very short time of landing, absorb a large amount of water vapours and reach saturation, formed in the top shell side of absorber
One apparent Wen Shengqu, becomes the highest temperature zone of entire absorption cycle system, and solution gas-liquid two-phase begins during falling liquid film
Eventually in dynamic equilibrium, conducted heat by mass transfer enhancement, solution temperature declines, and concentration reduces, eventually form lithium bromide weak solution 4 into
It enters back into regenerator after entering solution heat exchanger heat exchange and is regenerated；In pipe for from heat exchanger~50 DEG C of heat medium water 18, lead to
It crosses absorber and manages outer high temperature lithium-bromide solution countercurrent flow, obtain the heat medium water 16, Ran Houjin of design code Wen Sheng~55 DEG C
Enter solar thermal collector to continue to be heated to design temperature.
About 55 DEG C of heat medium water 16 flows into solar thermal collector from absorber, adds cycle fluid 17 by using solar energy
Heat is to about 70 DEG C, subsequently into heat exchanger；About 70 DEG C of heat medium water exchanges heat with about 50 DEG C of heating water 19 in heat exchanger,
Heating water is heated to about 65 DEG C, the heating water 20 heated carries out heating use, about 70 DEG C of heat medium water into heating pipe network
Become about 50 DEG C of heat medium water 11 after 16 heat exchange and continue to participate in cycle heat exchange.
In conclusion the above is only the preferred embodiments of the present utility model only, it is not intended to limit the utility model
Protection domain.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all wrap
Containing being within the protection scope of the utility model.
Claims (3)
1. a kind of second-kind absorption-type heat pump of solar energy auxiliary heating, which is characterized in that the heat pump includes evaporator, condensation
Device, heat exchanger, solar thermal collector, absorber, heat exchanger, regenerator and cooler；
External sewage is discharged after entering the tube side heat exchange of evaporator, and the shell side inlet of evaporator is connected with condenser, and sewage will
Enter the condensed water heating evaporation in evaporator shell side from condenser, the shell-side outlet of evaporator is connect with absorber；The suction
Receive device, heat exchanger forms heat-exchanging loop after being connected with regenerator by lithium-bromide solution pipeline；Sewage flows through outside another way
Regenerator ensures the regeneration of lithium-bromide solution in heat exchanger, and regenerator is connect by water vapour pipeline with condenser；The condensation
Device, cooler and pump form cooling circuit, and the cooling liquid after heat exchange arrives after being pressurizeed by pump into cooler circulating cooling
Set temperature is recycled into condenser again；
Heat medium water enters absorber, and absorber flows into solar thermal collector, solar energy after the temperature of heat medium water is promoted 5~8 DEG C
The temperature of heat medium water is risen to after setting value the shell side inlet for being re-introduced into heat exchanger by heat collector, and the heat medium water after heating is in heat exchanger
It is interior to be heated to continue after setting value to recycle in pipeline by external heating water, heating water by heat exchanger shell pass export output for
Family uses.
2. second-kind absorption-type heat pump as described in claim 1, which is characterized in that have between the absorber and heat exchanger
Two circulation lines arranged side by side, heat exchanger, which flows to, installs pump on the pipeline in absorber direction；Between heat exchanger and regenerator
There are two circulation lines arranged side by side, heat exchanger flows to and installs throttle valve on the pipeline in regenerator direction.
3. second-kind absorption-type heat pump as claimed in claim 2, which is characterized in that the pipe between the evaporator and condenser
Road connection pump, it is therefore an objective to which the condensed water in condenser is pumped into evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474490.4U CN207585131U (en) | 2017-11-07 | 2017-11-07 | A kind of second-kind absorption-type heat pump of solar energy auxiliary heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721474490.4U CN207585131U (en) | 2017-11-07 | 2017-11-07 | A kind of second-kind absorption-type heat pump of solar energy auxiliary heating |
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| Publication Number | Publication Date |
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| CN207585131U true CN207585131U (en) | 2018-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721474490.4U Active CN207585131U (en) | 2017-11-07 | 2017-11-07 | A kind of second-kind absorption-type heat pump of solar energy auxiliary heating |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860149A (en) * | 2017-11-07 | 2018-03-30 | 北京拓首能源科技股份有限公司 | A kind of second-kind absorption-type heat pump of solar energy auxiliary heating |
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2017
- 2017-11-07 CN CN201721474490.4U patent/CN207585131U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860149A (en) * | 2017-11-07 | 2018-03-30 | 北京拓首能源科技股份有限公司 | A kind of second-kind absorption-type heat pump of solar energy auxiliary heating |
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