CN215002365U - Heat supply steam return water waste heat utilization system - Google Patents
Heat supply steam return water waste heat utilization system Download PDFInfo
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- CN215002365U CN215002365U CN202121151222.5U CN202121151222U CN215002365U CN 215002365 U CN215002365 U CN 215002365U CN 202121151222 U CN202121151222 U CN 202121151222U CN 215002365 U CN215002365 U CN 215002365U
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- steam
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- lithium bromide
- bromide absorption
- waste heat
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
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Abstract
The invention relates to the technical field of waste heat utilization, and discloses a heat supply steam backwater waste heat utilization system which comprises a gas turbine unit, a waste heat boiler, a steam turbine unit and a lithium bromide absorption type water chilling unit, wherein a smoke outlet of the gas turbine unit is connected with a smoke inlet of the waste heat boiler, a steam outlet of the waste heat boiler is connected with a steam inlet of the steam turbine unit, the steam turbine unit is provided with a steam supply port, and the steam supply port is connected with a heat medium input port of the lithium bromide absorption type water chilling unit. Adopt the utility model discloses the afterbody steam part of gas turbine unit carries to lithium bromide absorption formula machine of cooling water unit, thereby provides the refrigeration of heat source for lithium bromide absorption formula machine of cooling water unit, has realized the utilization of the waste heat of afterbody steam, and afterbody steam is through exothermic formation comdenstion water simultaneously, effectively cools down, the recovery of the working medium in the steam of being convenient for.
Description
Technical Field
The invention relates to the technical field of waste heat utilization, in particular to a heat supply steam backwater waste heat utilization system.
Background
At present, the condensate water generated by heat supply steam in domestic cogeneration projects is rarely recycled, on one hand, a large amount of heat and working medium losses are caused, on the other hand, a large amount of water is required to be supplemented to the unit for ensuring the steam-water balance of a power plant, and the water consumption index of the unit is higher. The main reason for this phenomenon is that the heating steam has a high temperature, if the condensed water of the heating steam needs to be recovered, a cooling device needs to be additionally arranged, the condensed water (return water) generated by the heating steam is cooled to 60 ℃ and then enters a chemical workshop for treatment, and the water after the chemical treatment is supplemented into a condenser, so that the cost is high. Therefore, a system for utilizing the waste heat of the heat supply steam is needed, so that the waste of heat is avoided, and meanwhile, the heat supply steam can be cooled so as to process and recover the working medium.
Disclosure of Invention
The invention aims to provide a heat supply steam backwater waste heat utilization system for supplying heat to a lithium bromide absorption type water chilling unit by utilizing tail steam of a steam turbine unit.
In order to solve the technical problem, the invention provides a heat supply steam backwater waste heat utilization system which comprises a gas turbine unit, a waste heat boiler, a steam turbine unit and a lithium bromide absorption type water cooling unit, wherein a smoke outlet of the gas turbine unit is connected with a smoke inlet of the waste heat boiler, a steam outlet of the waste heat boiler is connected with a steam inlet of the steam turbine unit, the steam turbine unit is provided with a steam supply port, and the steam supply port is connected with a heat medium input port of the lithium bromide absorption type water cooling unit.
As the utility model discloses a preferred scheme still includes the condenser, the steam turbine group's steam outlet with the steam inlet of condenser is connected, the comdenstion water export of condenser with exhaust-heat boiler's water inlet is connected, the condenser is equipped with the comdenstion water entry, the heat medium delivery outlet of lithium bromide absorption water chilling unit with comdenstion water entry linkage.
As the preferred scheme of the utility model, still include water treatment facilities, lithium bromide absorption formula water chilling unit's heat medium delivery outlet with water treatment facilities's input port connection, water treatment facilities's delivery outlet with comdenstion water entry linkage.
As the utility model discloses an optimal scheme still includes cold water heat exchanger, cold water heat exchanger is equipped with cold water entry and cold water export, the refrigerated water delivery outlet of lithium bromide absorption cold water machine group with cold water heat exchanger's water inlet is connected, cold water heat exchanger's delivery port with the refrigerated water return water mouth of lithium bromide absorption cold water machine group is connected.
As the preferred scheme of the utility model, still include steam heat exchanger, supply the vapour mouth with steam heat exchanger's steam inlet connects, steam heat exchanger's comdenstion water export with the heat medium input connection of lithium bromide absorption formula water chilling unit.
Compared with the prior art, the heat supply steam backwater waste heat utilization system has the beneficial effects that: the tail steam part of the gas turbine unit is conveyed to the lithium bromide absorption type water chilling unit to provide a heat source for the lithium bromide absorption type water chilling unit so as to refrigerate, the utilization of the waste heat of the tail steam is realized, meanwhile, the tail steam forms condensed water through heat release, the temperature is effectively reduced, and the recovery of working media in the steam is facilitated.
Drawings
FIG. 1 is a schematic structural diagram of a system for utilizing waste heat of return water of heating steam provided by the invention;
in the figure, 1, a gas turbine group; 2. a waste heat boiler; 3. a steam turbine set; 31. a steam supply port; 4. a lithium bromide absorption chiller; 5. a condenser; 51. a condensed water inlet; 6. a water treatment device; 7. a cold water heat exchanger; 8. a steam heat exchanger.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1, a system for utilizing waste heat of returned heat of heating steam according to a preferred embodiment of the present invention includes a gas turbine unit 1, a waste heat boiler 2, a steam turbine unit 3, and a lithium bromide absorption water chiller unit 4, wherein a smoke outlet of the gas turbine unit 1 is connected to a smoke inlet of the waste heat boiler 2, a steam outlet of the waste heat boiler 2 is connected to a steam inlet of the steam turbine unit 3, the steam turbine unit 3 is provided with a steam supply port 31, and the steam supply port 31 is connected to a heat medium input port of the lithium bromide absorption water chiller unit 4.
The working process of the invention is as follows: the fuel gas enters the gas turbine set 1 to be combusted to drive the gas turbine set 1 to act for power generation, the flue gas generated by the gas turbine set 1 enters the waste heat boiler 2 to heat water in the waste heat boiler to generate steam, the steam enters the steam turbine set 3 to drive the steam turbine set 3 to act for power generation, then the tail steam part of the gas turbine set 1 is conveyed to the lithium bromide absorption type water chilling unit 4 through the steam supply port 31 to provide a heat source for the lithium bromide absorption type water chilling unit 4 to refrigerate, the waste heat utilization of the tail steam is realized, meanwhile, the tail steam forms condensate water through heat release, the temperature is effectively reduced, and the recovery of working media in the steam is facilitated.
Exemplarily, this embodiment still includes condenser 5, the steam outlet of steam turbine group 3 is connected with the steam inlet of condenser 5, the comdenstion water export of condenser 5 is connected with the water inlet of exhaust-heat boiler 2, some afterbody steam of steam turbine group 3 is carried back exhaust-heat boiler 2 after condenser 5 condenses, realize the cyclic utilization of comdenstion water, reduce system's moisturizing, condenser 5 is equipped with comdenstion water inlet 51, the heat medium delivery outlet of lithium bromide absorption chiller group 4 is connected with comdenstion water inlet 51, the comdenstion water of the afterbody steam that provides the heat for lithium bromide absorption chiller group 4 is carried back exhaust-heat boiler 2 through condenser 5 is unified equally.
Illustratively, the present embodiment further includes a water treatment device 6, a heat medium output port of the lithium bromide absorption water chilling unit 4 is connected to an input port of the water treatment device 6, an output port of the water treatment device 6 is connected to a condensed water inlet 51, and the condensed water is filtered and then conveyed back to the exhaust-heat boiler 2.
Illustratively, the embodiment further comprises a cold water heat exchanger 7, wherein a chilled water output port of the lithium bromide absorption type cold water unit 4 is connected with a water inlet of the cold water heat exchanger 7, chilled water generated by the lithium bromide absorption type cold water unit 4 provides a cold source for the cold water heat exchanger 7 to be used as cooling air or water, and a water outlet of the cold water heat exchanger 7 is connected with a chilled water return port of the lithium bromide absorption type cold water unit 4 to form a chilled water loop.
For example, the present embodiment further includes a steam heat exchanger 8, the steam supply port 31 is connected to a steam inlet of the steam heat exchanger 8, a condensed water outlet of the steam heat exchanger 8 is connected to a heat medium input port of the lithium bromide absorption chiller 4, the steam at the tail of the steam turbine 3 is first delivered to the steam heat exchanger 8 to provide a heat source for the steam heat exchanger 8 to heat air or water, and then the steam releases heat and condenses into water, the condensed water still has a certain temperature, the temperature of the condensed water is about 80 ℃, and the condensed water is then delivered to the lithium bromide absorption chiller 4 to be used as a heat source, so that the heat of the steam at the tail of the steam turbine 3 is utilized in multiple stages.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (5)
1. The utility model provides a heat supply steam return water waste heat utilization system which characterized in that: including gas turbine unit, exhaust-heat boiler, steam turbine unit and lithium bromide absorption chiller, the exhaust port of gas turbine unit with exhaust-heat boiler's the mouth that advances is connected, exhaust-heat boiler's steam outlet with the steam turbine unit's steam inlet connects, steam turbine unit is equipped with the steam feed mouth, the steam feed mouth with the heat medium input port connection of lithium bromide absorption chiller.
2. The heating steam backwater waste heat utilization system according to claim 1, characterized in that: the steam turbine set is characterized by further comprising a condenser, a steam outlet of the steam turbine set is connected with a steam inlet of the condenser, a condensate outlet of the condenser is connected with a water inlet of the waste heat boiler, the condenser is provided with a condensate inlet, and a heat medium output port of the lithium bromide absorption type water chilling unit is connected with the condensate inlet.
3. The heating steam backwater waste heat utilization system according to claim 2, characterized in that: the lithium bromide absorption type water chilling unit is characterized by further comprising a water treatment device, wherein a heat medium output port of the lithium bromide absorption type water chilling unit is connected with an input port of the water treatment device, and an output port of the water treatment device is connected with a condensed water inlet.
4. The heating steam backwater waste heat utilization system according to claim 1, characterized in that: the lithium bromide absorption type water chilling unit is characterized by further comprising a cold water heat exchanger, wherein the cold water heat exchanger is provided with a cold water inlet and a cold water outlet, a chilled water outlet of the lithium bromide absorption type water chilling unit is connected with a water inlet of the cold water heat exchanger, and a water outlet of the cold water heat exchanger is connected with a chilled water return port of the lithium bromide absorption type water chilling unit.
5. The heating steam backwater waste heat utilization system according to claim 1, characterized in that: the lithium bromide absorption type water chilling unit is characterized by further comprising a steam heat exchanger, wherein a steam supply port is connected with a steam inlet of the steam heat exchanger, and a condensate water outlet of the steam heat exchanger is connected with a heat medium input port of the lithium bromide absorption type water chilling unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121151222.5U CN215002365U (en) | 2021-05-26 | 2021-05-26 | Heat supply steam return water waste heat utilization system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121151222.5U CN215002365U (en) | 2021-05-26 | 2021-05-26 | Heat supply steam return water waste heat utilization system |
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| Publication Number | Publication Date |
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| CN215002365U true CN215002365U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121151222.5U Active CN215002365U (en) | 2021-05-26 | 2021-05-26 | Heat supply steam return water waste heat utilization system |
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| CN (1) | CN215002365U (en) |
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2021
- 2021-05-26 CN CN202121151222.5U patent/CN215002365U/en active Active
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