CN203940503U - Suction-type lithium bromide heat-exchange system with afterburning - Google Patents
Suction-type lithium bromide heat-exchange system with afterburning Download PDFInfo
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- CN203940503U CN203940503U CN201420089593.9U CN201420089593U CN203940503U CN 203940503 U CN203940503 U CN 203940503U CN 201420089593 U CN201420089593 U CN 201420089593U CN 203940503 U CN203940503 U CN 203940503U
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Abstract
The utility model relates to a kind of suction-type lithium bromide heat-exchange system with afterburning, belongs to air conditioner technical field.Comprise a secondary net hot water tube system (1), secondary network hot water tube system (2), heat exchanger (3), hot water lithium bromide absorbing unit (4) and direct-burning type lithium bromide absorption type unit (5), a secondary net hot water that goes out a secondary net hot water tube system (1) is introduced into the generator (404) of hot water lithium bromide absorbing unit (4), then enters heat exchanger (3); The hot water backwater's parallel connection that goes out secondary network hot water tube system (2) is divided into two-way, the first sequential flow in one road is after the evaporimeter (401) of hot water lithium bromide absorbing unit (4) and the evaporimeter (501) of direct-burning type lithium bromide absorption type unit (5), enter again heat exchanger (3), parallel connection or the random order series connection of another road, series-parallel form flow through absorber (402), condenser (403) and absorber (502), condenser (503).Native system can be realized increases the object that a secondary net hot water effectively utilizes the temperature difference and bears heating network peakload.
Description
Technical field
The utility model relates to a kind of suction-type lithium bromide heat-exchange system with afterburning.Belong to air conditioner technical field.
Background technology
In conventional central heating system, a secondary net hot water is heated after intensification at thermal source place, by heating network, is sent to each hot user, after each hot user place lowers the temperature by heat exchanger heat exchange with secondary network hot water, then returns to thermal source place heat temperature raising by heating network.
Each hot user locates the common heat exchanger that uses (being water-water heat exchanger in diagram) as shown in Figure 1, one secondary net hot water and secondary network hot water carry out heat exchange by heat exchanger tube (shell-and-tube heat exchanger) or heat-transfer surface (plate type heat exchanger), heat in one secondary net hot water is delivered in secondary network hot water, one secondary net hot water temperature declines, secondary network hot water temperature raises, complete the process of secondary network hot water heat-obtaining from a secondary net hot water, secondary network hot water be transported to again with thermal field for production or life, heating.
For reducing heating network construction cost and heat delivery cost, need to increase the supply water temperature of a secondary net hot water as far as possible or reduce its return water temperature, to increase supply backwater temperature difference, thereby in the situation that carrying identical heat, reduce required flow.But due to the heatproof restriction of heating network, the supply water temperature of a secondary net hot water can not be too high.And the common heat exchanger adopting, a secondary net hot water and secondary network hot water need certain heat transfer temperature difference could realize effective heat exchange, so the return water temperature of a secondary net hot water in theory need be higher than the inlet temperature of secondary network hot water.After the temperature of secondary network hot water is determined, the return water temperature of a secondary net hot water is restricted, and the temperature difference utilized of a secondary net hot water is subject to secondary network hot water temperature's restriction.If can adopt new flow process and system, in the situation that guaranteeing secondary network hot water temperature, reduce the return water temperature of a secondary net hot water, break through it higher than the restriction bottleneck of secondary network hot water inlet temperature, can realize the object of aforementioned minimizing heating network construction cost and heat delivery cost.
In addition, heat demand in the time of need to meeting cold snap because of central heating system, thereby heating network is all the design and establishing carrying out according to maximum heating demand, but in actual moving process, the heating system overwhelming majority time is all to move under part heating demand, and this has just caused the waste of heating network heat capacity.If can adopt new flow process and system, the device assumes of being located by hot user is fallen the heat supply peakload of peak period, make central heating network only bear basic load to a certain degree, in same set under heat capacity, the construction cost of heating network can reduce, the oepration at full load time lengthening of heating network, the investment utilization ratio of heating network can get a promotion.
Utility model content
The purpose of this utility model is to provide a kind of return water temperature that reduces a secondary net hot water in original technical foundation, to realize, increase the effective heat release temperature difference of a secondary net hot water, and can bear the suction-type lithium bromide heat-exchange system with afterburning of central heating system spike heating demand.
The purpose of this utility model is achieved in that a kind of suction-type lithium bromide heat-exchange system with afterburning, comprise a secondary net hot water tube system, secondary network hot water tube system and heat exchanger, described system has additional hot water lithium bromide absorbing unit and direct-burning type lithium bromide absorption type unit, hot water lithium bromide absorbing unit comprises evaporimeter, absorber, condenser and generator, direct-burning type lithium bromide absorption type unit comprises evaporimeter, absorber, condenser and generator, a secondary net hot water that goes out a described secondary net hot water tube system is introduced into the generator of hot water lithium bromide absorbing unit, out, enter again heat exchanger, finally through a secondary net hot water tube system, flow out again, the hot water backwater's parallel connection that goes out described secondary network hot water tube system is divided into two-way, wherein the first sequential flow in a road is after the evaporimeter of hot water lithium bromide absorbing unit and the evaporimeter of direct-burning type lithium bromide absorption type unit, enter again heat exchanger, out becoming afterwards a road secondary network hot water supplies water, another road is parallel connection or random order series connection, the flow through absorber of hot water lithium bromide absorbing unit of series-parallel form, the absorber of condenser and direct-burning type lithium bromide absorption type unit, condenser, out becoming afterwards another road secondary network hot water supplies water, described two road secondary network hot water supply water and by secondary network hot water tube system, flow out separately or after converging.
A kind of suction-type lithium bromide heat-exchange system with afterburning of the utility model, the hot water backwater's parallel connection that goes out described secondary network hot water tube system is divided into two-way, the first sequential flow in one road is after the evaporimeter of hot water lithium bromide absorbing unit and the evaporimeter of direct-burning type lithium bromide absorption type unit, enter again heat exchanger, out becoming afterwards a road secondary network hot water supplies water, the flow through absorber of direct-burning type lithium bromide absorption type unit of another road series sequence, the absorber of hot water lithium bromide absorbing unit, the condenser of condenser and direct-burning type lithium bromide absorption type unit, out becoming afterwards another road secondary network hot water supplies water.
The utility model is by arranging hot water lithium bromide absorbing unit and direct-burning type lithium bromide absorption type unit, by a part of secondary network hot water sequential flow through the evaporimeter of hot water lithium bromide absorbing unit and the evaporimeter of apotype lithium bromide absorption-type machine unit, after cooling, just enter in heat exchanger and a secondary net hot water heat exchange, thereby the temperature that makes a secondary net hot water go out heat exchanger is even lower.Direct-burning type lithium bromide absorption type unit of the present utility model does not need operation when part heating demand, only by a secondary net hot water liberated heat heating secondary network hot water; When the heat of a secondary net hot water can not meet heat demand, restart direct-burning type lithium bromide absorption type unit, can further reduce the return water temperature of a secondary net hot water on the one hand, extract more heat in secondary network hot water, on the other hand, the heat that fuel combustion produces can be supplied the breach between a secondary net hot water thermal amount and heating demand, bears spike heating demand.Compare with conventional art, the utility model can be realized the object that increases the effective heat release temperature difference of a secondary net hot water and bear heating network spike heating demand.
The beneficial effects of the utility model are:
1, a secondary net hot water flow fixedly time, adopts the utility model unit can reduce its return water temperature, improves and effectively utilizes the temperature difference, can increase the extraction of heat and utilize quantity, improves the heat capacity of system.
2, during identical heating demand, afterburning fuel can be born spike heating demand, and heating network only needs to bear basic load to a certain degree, thereby reduces the flow of a secondary net hot water, reduces the construction cost that it carries cost and heating network, thermal source place.
Accompanying drawing explanation
Fig. 1 is the fundamental diagram of common heat exchanger in the past.
Fig. 2 is the fundamental diagram of the suction-type lithium bromide heat-exchange system of the utility model band afterburning.
Reference numeral in figure:
One secondary net hot water tube system 1, secondary network hot water tube system 2, heat exchanger 3, hot water lithium bromide absorbing unit 4, direct-burning type lithium bromide absorption type unit 5, the evaporimeter 401 of hot water lithium bromide absorbing unit 4, absorber 402, condenser 403 and generator 404, the evaporimeter 501 of direct-burning type lithium bromide absorption type unit 5, absorber 502, condenser 503 and generator 504.
One secondary net hot water enters A1, a secondary net hot water and goes out A2, secondary network hot water backwater and enter B1, secondary network hot water backwater and go out that B2, fuel enter C1, C2 discharges fume.
The specific embodiment
Fig. 2 is a kind of application example figure of the related suction-type lithium bromide heat-exchange system with afterburning of the utility model.This system consists of a secondary net hot water tube system 1, secondary network hot water tube system 2, heat exchanger 3, hot water lithium bromide absorbing unit 4 and direct-burning type lithium bromide absorption type unit 5.Hot water lithium bromide absorbing unit 4 comprises evaporimeter 401, absorber 402, condenser 403 and generator 404.Direct-burning type lithium bromide absorption type unit 5 comprises evaporimeter 501, absorber 502, condenser 503 and generator 504.After the generator 404 that the secondary net hot water that one secondary net hot water tube system 1 is come is introduced into hot water lithium bromide absorbing unit 4 is once lowered the temperature as driving heat source, then enter heat exchanger 3 reducing temperature twices, hot water backwater's parallel connection that secondary network hot water tube system 2 is come is divided into two-way, the first sequential flow in one road is after the evaporimeter 401 of hot water lithium bromide absorbing unit 4 and evaporimeter 501 refrigeration cool-downs of direct-burning type lithium bromide absorption type unit 5, entering heat exchanger 3 and a secondary net hot water heat exchange heats up again, the flow through absorber 502 of direct-burning type lithium bromide absorption type unit 5 of another road series sequence, the absorber 402 of hot water lithium bromide absorbing unit 4, the condenser 503 of condenser 403 and direct-burning type lithium bromide absorption type unit 5, after converging, two road secondary network hot water flow out by secondary network hot water tube system 2.Fuel enters burning in the generator 504 of direct-burning type lithium bromide absorption type unit 5, and flue gas is discharged unit.
Shown in Fig. 2 can be all single-action, economic benefits and social benefits or diarcs unit with the hot water lithium bromide absorbing unit in the suction-type lithium bromide heat-exchange system of afterburning, direct-burning type lithium bromide absorption type unit, and the medium of a secondary net hot water can be water, conduction oil or other medium.Secondary network hot water can be also water or other liquid medium.One secondary net hot-water heating system and secondary network hot-water heating system can be closed circulation systems, can be also open systems.
In the suction-type lithium bromide heat-exchange system with afterburning shown in Fig. 2, the hot water backwater that secondary network hot water tube system 2 is come is that parallel connection is divided into two-way, the first sequential flow in one road is after the evaporimeter 401 of hot water lithium bromide absorbing unit 4 and evaporimeter 501 refrigeration cool-downs of direct-burning type lithium bromide absorption type unit 5, entering heat exchanger 3 and a secondary net hot water heat exchange heats up again, another road secondary network hot water is the flow through absorber 502 of direct-burning type lithium bromide absorption type unit 5 of series connection, the absorber 402 of hot water lithium bromide absorbing unit 4, the condenser 503 of condenser 403 and direct-burning type lithium bromide absorption type unit 5, it can be also that parallel connection is divided into two-way, the first sequential flow in one road is after the evaporimeter 401 of hot water lithium bromide absorbing unit 4 and evaporimeter 501 refrigeration cool-downs of direct-burning type lithium bromide absorption type unit 5, enter again heat exchanger 3 and a secondary net hot water heat exchange and heat up, flow through absorber 502, the condenser 503 of absorber 402, condenser 403 and direct-burning type lithium bromide absorption type unit 5 of hot water lithium bromide absorbing unit 4 of parallel connection or the random order series connection of another road, series-parallel form.
Claims (4)
1. the suction-type lithium bromide heat-exchange system with afterburning, comprise a secondary net hot water tube system (1), secondary network hot water tube system (2) and heat exchanger (3), it is characterized in that: described system has additional hot water lithium bromide absorbing unit (4) and direct-burning type lithium bromide absorption type unit (5), hot water lithium bromide absorbing unit (4) comprises evaporimeter (401), absorber (402), condenser (403) and generator (404), direct-burning type lithium bromide absorption type unit (5) comprises evaporimeter (501), absorber (502), condenser (503) and generator (504), a secondary net hot water that goes out a described secondary net hot water tube system (1) is introduced into the generator (404) of hot water lithium bromide absorbing unit (4), out, enter again heat exchanger (3), finally through a secondary net hot water tube system (1), flow out again, the hot water backwater's parallel connection that goes out described secondary network hot water tube system (2) is divided into two-way, wherein the first sequential flow in a road is after the evaporimeter (401) of hot water lithium bromide absorbing unit (4) and the evaporimeter (501) of direct-burning type lithium bromide absorption type unit (5), enter again heat exchanger (3), out becoming afterwards a road secondary network hot water supplies water, another road is parallel connection or random order series connection, the flow through absorber (402) of hot water lithium bromide absorbing unit (4) of series-parallel form, the absorber (502) of condenser (403) and direct-burning type lithium bromide absorption type unit (5), condenser (503), out becoming afterwards another road secondary network hot water supplies water, described two road secondary network hot water supply water and by secondary network hot water tube system (2), flow out separately or after converging.
2. a kind of suction-type lithium bromide heat-exchange system with afterburning according to claim 1, it is characterized in that: the hot water backwater's parallel connection that goes out described secondary network hot water tube system (2) is divided into two-way, the first sequential flow in one road is after the evaporimeter (401) of hot water lithium bromide absorbing unit (4) and the evaporimeter (501) of direct-burning type lithium bromide absorption type unit (5), enter again heat exchanger (3), out becoming afterwards a road secondary network hot water supplies water, the flow through absorber (502) of direct-burning type lithium bromide absorption type unit (5) of another road series sequence, the absorber (402) of hot water lithium bromide absorbing unit (4), the condenser (503) of condenser (403) and direct-burning type lithium bromide absorption type unit (5), out becoming afterwards another road secondary network hot water supplies water.
3. a kind of suction-type lithium bromide heat-exchange system with afterburning according to claim 1 and 2, is characterized in that: the hot water lithium bromide absorbing unit (4) in described system and direct-burning type lithium bromide absorption type unit (5) are single-action, economic benefits and social benefits or diarcs unit.
4. a kind of suction-type lithium bromide heat-exchange system with afterburning according to claim 1 and 2, is characterized in that: a secondary net hot-water heating system (1) and secondary network hot-water heating system (2) in described system are closed circulation systems, or open system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089593.9U CN203940503U (en) | 2014-03-01 | 2014-03-01 | Suction-type lithium bromide heat-exchange system with afterburning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420089593.9U CN203940503U (en) | 2014-03-01 | 2014-03-01 | Suction-type lithium bromide heat-exchange system with afterburning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203940503U true CN203940503U (en) | 2014-11-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420089593.9U Withdrawn - After Issue CN203940503U (en) | 2014-03-01 | 2014-03-01 | Suction-type lithium bromide heat-exchange system with afterburning |
Country Status (1)
| Country | Link |
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| CN (1) | CN203940503U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868130A (en) * | 2014-03-01 | 2014-06-18 | 双良节能系统股份有限公司 | After-burning lithium bromide absorption type heat exchange system |
| CN111336572A (en) * | 2019-08-30 | 2020-06-26 | 同方节能工程技术有限公司 | Low-temperature hot water driven absorption type large-temperature-difference heat exchange unit |
-
2014
- 2014-03-01 CN CN201420089593.9U patent/CN203940503U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103868130A (en) * | 2014-03-01 | 2014-06-18 | 双良节能系统股份有限公司 | After-burning lithium bromide absorption type heat exchange system |
| CN103868130B (en) * | 2014-03-01 | 2016-06-01 | 双良节能系统股份有限公司 | The suction-type lithium bromide heat-exchange system of combustion mended by band |
| CN111336572A (en) * | 2019-08-30 | 2020-06-26 | 同方节能工程技术有限公司 | Low-temperature hot water driven absorption type large-temperature-difference heat exchange unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141112 Effective date of abandoning: 20160601 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |