CN204704010U - A kind of bootstrap system of distributed energy - Google Patents
A kind of bootstrap system of distributed energy Download PDFInfo
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- CN204704010U CN204704010U CN201520321327.9U CN201520321327U CN204704010U CN 204704010 U CN204704010 U CN 204704010U CN 201520321327 U CN201520321327 U CN 201520321327U CN 204704010 U CN204704010 U CN 204704010U
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Abstract
The utility model relates to a kind of bootstrap system of distributed energy, comprise fuel engine power generation unit, steam turbine power generation unit and exhaust heat boiler, it is characterized in that: the exhaust end of gas turbine is communicated with the inlet end of exhaust heat boiler, the steam output end of exhaust heat boiler connects the admission end of steam turbine, forms mechanism of qi UTILIZATION OF VESIDUAL HEAT IN loop; The steam output end of steam turbine connects the feed-water end of exhaust heat boiler successively by vapour condenser, feed water pump, form steam turbine UTILIZATION OF VESIDUAL HEAT IN loop; At the tail end of exhaust heat boiler, hot water heat exchanger is set, the waterexit end of hot water heat exchanger connects the feed-water end of heated by natural gas unit by hot water water main pipe, the backwater end of hot water heat exchanger connects the waterexit end of heated by natural gas unit by the female pipe of hot water backwater, form fuel engine power generation unit and steam turbine power generation unit recycling residual heat loop.The utility model can solve prior art heated by natural gas mechanism and have that energy consumption is large, the problem of poor safety performance, has and utilizes exhaust-heat boiler flue gas, reduce system energy consumption, reduce the beneficial effect of smoke discharge amount.
Description
Technical field
The utility model relates to a kind of bootstrap system, especially relates to a kind of bootstrap system of distributed energy.Belong to technical field of energy utilization.
Background technique
At present, prime mover is the distributed energy resource system of small size gas turbine, and generally using rock gas as fuel, capital equipment comprises gas turbine generator group, exhaust heat boiler, vapor wheel generator set.
Because the inlet condition of gas turbine to rock gas has certain requirement, the generator set of Natural Gas Power Plant can not directly utilize the rock gas from air feed terminal to generate electricity, voltage regulating station need be set between the fuel gas inlet of air feed terminal to gas turbine, regulate the suction pressure of rock gas.According to Joule-Thomson effect, when natural gas via crosses voltage regulating station, the decline of pressure can cause its temperature to reduce.In natural gas transport process, equipment is caused and damage for avoiding producing condensation water or issuable hyrate after natural gas pressure regulating cooling and hinder the normal operation of pipeline, avoid pipeline outer wall to freeze in a large number simultaneously, need to arrange heating unit in voltage regulating station.
In prior art, take two kinds of heated by natural gas modes generally as follows:
As shown in Figure 3, one is the technology adopting with combustion gas the water-bath type heater being the energy, mainly by the temperature of heating water bath stove gas-firing heating water, the temperature of recycling water heated natural gas, and reach by changing water-bath stove combustion of natural gas amount the object controlling natural gas temperature.There is following shortcoming: (1) needs to consume extra rock gas, generating gas consumption increases, and is unfavorable for the energy-saving and emission-reduction of power plant.(2) water-bath stove is arranged in voltage regulating station, and need igniting to run, gas leakage probably causes blast, there is potential safety hazard.(3) direct gas-firing, increases power plant CO
2discharge amount.
As shown in Figure 4, its two, adopt shell-and-tube heat exchanger heated natural gas, with steam as heat medium.There is following shortcoming: (1) needs to set up extraction line and equipment, makes power plant thermal system complicated, has impact to the operation of host computer system.(2) use is drawn gas as heat medium, decreases generated energy from a power plant, is equivalent to the generating gas consumption adding power plant.
In distributed busbar protection, the two pressure exhaust heat boiler of prime mover one general configuration due to this grade, exhaust heat boiler temperature of exhaust fume higher (being generally about 110-130 DEG C).So the fume afterheat of high temperature is the resource that potentiality are very large, if directly discharge both wasted the energy, causes again serious environmental thermal pollution.Need to design a kind of distributed energy bootstrap system, have and can utilize exhaust-heat boiler flue gas waste heat, reduce system energy consumption, reduce the feature of temperature of exhaust fume.
Model utility content
The purpose of this utility model, be have that energy consumption is large to solve prior art heated by natural gas mechanism, poor safety performance or increase the problem of complexity of original thermodynamic system, a kind of bootstrap system of distributed energy is provided.Have and utilize exhaust-heat boiler flue gas waste heat, reduce system energy consumption, reduce the feature of temperature of exhaust fume.
The purpose of this utility model can realize by taking following technological scheme:
A kind of bootstrap system of distributed energy, comprise fuel engine power generation unit, steam turbine power generation unit, exhaust heat boiler and hot water heat exchanger, fuel engine power generation unit comprises gas compressor, firing chamber, gas turbine and fuel engine power generation machine, and steam turbine power generation unit comprises steam turbine and steam turbine generator; Its structural feature is: the exhaust end of gas turbine is communicated with the inlet end of exhaust heat boiler, and the smoke evacuation of exhaust heat boiler enters air, forms fuel engine power generation unit smoke waste heat utilization system; The steam output end of exhaust heat boiler, successively by the feed-water end of steam turbine, vapour condenser, feed water pump connection exhaust heat boiler, forms steam turbine Lang Ken circulating generation loop; At the tail end of exhaust heat boiler, hot water heat exchanger is set, the waterexit end of described hot water heat exchanger connects the feed-water end of heated by natural gas unit by hot water water main pipe, the backwater end of described hot water heat exchanger connects the waterexit end of heated by natural gas unit by the female pipe of hot water backwater, described heated by natural gas unit is provided with inlet end and outlet side, the external rock gas from voltage regulating station flowmeter outlet of this inlet end, outlet side connect the filtering separation unit entrance in voltage regulating station, form exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop; Namely the bootstrap system of distributed energy is formed by fuel engine power generation unit smoke waste heat utilization system, steam turbine Lang Ken circulating generation loop and exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop.
The purpose of this utility model can also realize by taking following technological scheme:
Further, described gas compressor has air input to absorb outside air, the air inlet end of the output termination firing chamber of gas compressor; Firing chamber is provided with natural gas input with external rock gas, and the flue gas output terminal of firing chamber connects the flue gas input end of gas turbine, the input end of the Power output termination fuel engine power generation machine of gas turbine; Form the electrification structure of fuel engine power generation unit.
Further, the steam output end of described exhaust heat boiler connects the steam input end of steam turbine, the input end of the Power output termination steam turbine generator of steam turbine, forms the electrification structure of steam turbine power generation unit.
Further, the exhaust steam output terminal of described steam turbine connects the input end of vapour condenser, the output terminal of vapour condenser connects the boosting input end of feed water pump, the boosting output terminal of feed water pump connects the water intake of exhaust heat boiler, the steam output end of exhaust heat boiler connects the steam input end of steam turbine, forms steam turbine Lang Ken circulating generation loop.
Further, the afterbody of described exhaust heat boiler arranges hot water heat exchanger, and the backwater output terminal of the low-temperature water heating backwater input termination heated by natural gas unit of hot water heat exchanger, the high-temperature-hot-water of hot water heat exchanger exports the hot water input of termination heated by natural gas unit.
Further, described heated by natural gas unit to be arranged in voltage-regulating system after flow measurement device and quick closing valve device.
Further, described heated by natural gas unit comprises booster pump A, booster pump B, natural device hot water heater A and natural gas hot water heater B, described natural gas hot water heater A and natural gas hot water heater B are connected the high-temperature-hot-water output terminal of hot water heat exchanger by hot water water main pipe, described natural device hot water heater A and natural gas hot water heater B are connected the low-temperature water heating backwater input end of hot water heat exchanger by the female pipe of hot water backwater by booster pump A and booster pump B.
The utility model has following outstanding beneficial effect:
1, the utility model is owing to having fuel engine power generation unit smoke waste heat utilization system, steam turbine Lang Ken circulating generation loop and exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop, therefore, form distributed energy bootstrap system can solve prior art natural gas pressure regulating station heating unit and have that energy consumption is large, poor safety performance or increase the problem of complexity of original thermodynamic system, have and utilize exhaust-heat boiler flue gas waste heat, reduce system energy consumption, reduce the beneficial effect of temperature of exhaust fume.
2, the utility model is by setting up hot water heat exchanger at exhaust heat boiler afterbody, utilize the hot water heating voltage regulating station cryogenic natural gas that exhaust heat boiler afterbody hot water heat exchanger produces, comparatively heating water bath, cancel heating water bath stove conventional in voltage regulating station, the blast that gas leakage may cause can be avoided, improve the Security of voltage regulating station, and make full use of smoke discharging residual heat generation hot water, improve efficiency of energy utilization; Reduce temperature of exhaust fume simultaneously, decrease thermo-pollution, avoid direct gas-firing, reach the effect of the discharge amount reducing CO2.
3, the utility model comparatively heating water bath, cancels heating water bath stove conventional in voltage regulating station, reduces power plant's rock gas consumption; Comparatively steam heating is avoided using extracted steam from turbine as heat medium, reduces the generating gas consumption amount of power plant, has energy-conservation advantage.
4, the utility model comparatively steam heating, the hot water heat exchanger that exhaust heat boiler afterbody is set up does not affect the original thermodynamic system of power plant, does not impact the operation of host computer system, easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model specific embodiment 1.
Fig. 2 is the structural representation of heated by natural gas unit in Fig. 1.
Fig. 3 is the heating water bath formula structural representation of prior art.
Fig. 4 is the steam heating type structural representation of prior art.
In Fig. 1,1-gas compressor, 2-air filter, 3-firing chamber, 4-gas turbine, 5-fuel engine power generation machine, 6-exhaust heat boiler, 7-steam turbine, 8-steam turbine generator, 9-vapour condenser, 10-feed water pump, 11-hot water heat exchanger, 12-hot water water main pipe, 13-hot water backwater mother pipe.
Embodiment
Specific embodiment 1:
Below in conjunction with drawings and Examples, the utility model is described in further detail:
With reference to Fig. 1, the present embodiment comprises fuel engine power generation unit, steam turbine power generation unit, exhaust heat boiler 6 and hot water heat exchanger 11, fuel engine power generation unit comprises gas compressor 1, firing chamber 3, gas turbine 4 and fuel engine power generation machine 5, and steam turbine power generation unit comprises steam turbine 7 and steam turbine generator 8; The exhaust end of gas turbine 4 is communicated with the inlet end of exhaust heat boiler 6, and the smoke evacuation of exhaust heat boiler 6 enters air, forms fuel engine power generation unit smoke waste heat utilization system; The steam output end of exhaust heat boiler 6 connects the feed-water end of exhaust heat boiler 6 successively by steam turbine 7, vapour condenser 9, feed water pump 10, form steam turbine Lang Ken circulating generation loop; At the tail end of exhaust heat boiler 6, hot water heat exchanger 11 is set, the waterexit end of described hot water heat exchanger 11 connects the feed-water end of heated by natural gas unit by hot water water main pipe 12, the backwater end of described hot water heat exchanger 11 connects the waterexit end of heated by natural gas unit by the female pipe 13 of hot water backwater, described heated by natural gas unit is provided with inlet end and outlet side, the external rock gas from voltage regulating station flowmeter outlet of this inlet end, outlet side connect the filtering separation unit entrance in voltage regulating station, form exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop; Namely fuel engine power generation unit smoke waste heat utilization system, steam turbine Lang Ken circulating generation loop and exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop form the bootstrap system of distributed energy.
In the present embodiment:
Described gas compressor 1 has air input to absorb outside air, the air inlet end of the output termination firing chamber 3 of gas compressor 1; Firing chamber 3 is provided with natural gas input with external rock gas, and the flue gas output terminal of firing chamber 3 connects the flue gas input end of gas turbine 4, the input end of the Power output termination fuel engine power generation machine 5 of gas turbine 4; Form the electrification structure of fuel engine power generation unit.
The steam output end of described exhaust heat boiler 6 connects the steam input end of steam turbine 7, the input end of the Power output termination steam turbine generator 8 of steam turbine 7, forms the electrification structure of steam turbine power generation unit.
The exhaust steam output terminal of described steam turbine 7 connects the input end of vapour condenser 9, the output terminal of vapour condenser 9 connects the boosting input end of feed water pump 10, the boosting output terminal of feed water pump 10 connects the water intake of exhaust heat boiler 6, the steam output end of exhaust heat boiler 6 connects the steam input end of steam turbine 7, forms steam turbine Lang Ken circulating generation loop.
The afterbody of described exhaust heat boiler 6 arranges hot water heat exchanger 11, and the backwater output terminal of the low-temperature water heating backwater input termination heated by natural gas unit of hot water heat exchanger 11, the high-temperature-hot-water of hot water heat exchanger 11 exports the hot water input of termination heated by natural gas unit.
Further, described heated by natural gas unit to be arranged in voltage-regulating system after flow measurement device and quick closing valve device.
Further, described heated by natural gas unit comprises booster pump A, booster pump B, natural device hot water heater A and natural gas hot water heater B, described natural gas hot water heater A and natural gas hot water heater B are connected the high-temperature-hot-water output terminal of hot water heat exchanger 11 by hot water water main pipe 12, described natural device hot water heater A and natural gas hot water heater B are connected the low-temperature water heating backwater input end of hot water heat exchanger 11 by the female pipe 13 of hot water backwater by booster pump A and booster pump B.
The working principle of the present embodiment is as follows:
With reference to Fig. 1, outside air enters gas compressor 1 after air filter 2, then in firing chamber 3, produces high-temperature flue gas with combustion of natural gas, enters gas turbine 4, and gas turbine 4 does work and drives fuel engine power generation machine 5 to generate electricity.
Meanwhile, high-temperature flue gas enters exhaust heat boiler 6, and the water in heating exhaust heat boiler 6 also produces steam, described steam enters steam turbine 7 and does work and drive steam turbine generator 8 to generate electricity, exhaust steam after acting, after vapour condenser 9 cools, is boosted through feed water pump 10, is again entered exhaust heat boiler 6.
Owing to arranging hot water heat exchanger 11 at the afterbody of exhaust heat boiler 6, the low-temperature water heating backwater heating female for hot water backwater pipe 13 can sent back to, generation high-temperature-hot-water delivers to heated by natural gas unit through hot water water main pipe 12 makes heated by natural gas.
By arranging hot water heat exchanger 11 at exhaust heat boiler 6 afterbody, receive the low-temperature water heating from heated by natural gas unit, carry high-temperature-hot-water to the natural device hot water heater A of heated by natural gas unit and natural gas hot water heater B after heating this low-temperature water heating, because this hot water heat exchanger heat is obtained by exhaust heat boiler tail flue gas, thus make full use of smoke discharging residual heat generation hot water, improve efficiency of energy utilization.
The above; be only the utility model preferably specific embodiment; but protection domain of the present utility model is not limited thereto; anyly be familiar with this technician in the scope that the utility model discloses; be equal to according to technical solutions of the utility model and model utility design thereof and replace or change, all belonged to protection domain of the present utility model.In the utility model, the content of not concrete explanation is state of the art scope.
Claims (7)
1. the bootstrap system of a distributed energy, comprise fuel engine power generation unit, steam turbine power generation unit, exhaust heat boiler (6) and hot water heat exchanger (11), fuel engine power generation unit comprises gas compressor (1), firing chamber (3), gas turbine (4) and fuel engine power generation machine (5), and steam turbine power generation unit comprises steam turbine (7) and steam turbine generator (8), it is characterized in that: the exhaust end of gas turbine (4) is communicated with the inlet end of exhaust heat boiler (6), and the smoke evacuation of exhaust heat boiler enters air, form fuel engine power generation unit smoke waste heat utilization system, the steam output end of exhaust heat boiler (6), successively by the feed-water end of steam turbine (7), vapour condenser (9), feed water pump (10) connection exhaust heat boiler (6), forms steam turbine Lang Ken circulating generation loop, at the tail end of exhaust heat boiler (6), hot water heat exchanger (11) is set, the waterexit end of described hot water heat exchanger (11) connects the feed-water end of heated by natural gas unit by hot water water main pipe (12), the backwater end of described hot water heat exchanger (11) connects the waterexit end of heated by natural gas unit by hot water backwater mother's pipe (13), described heated by natural gas unit is provided with inlet end and outlet side, the external rock gas from voltage regulating station flowmeter outlet of this inlet end, outlet side connects the filtering separation unit entrance in voltage regulating station, form exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop, namely the bootstrap system of distributed energy is formed by fuel engine power generation unit smoke waste heat utilization system, steam turbine Lang Ken circulating generation loop and exhaust heat boiler tail flue gas UTILIZATION OF VESIDUAL HEAT IN loop.
2. the bootstrap system of a kind of distributed energy according to claim 1, it is characterized in that: described gas compressor (1) has air input to absorb outside air, the air inlet end of the output termination firing chamber (3) of gas compressor (1); Firing chamber (3) is provided with natural gas input with external rock gas, the flue gas output terminal of firing chamber (3) connects the flue gas input end of gas turbine (4), the input end of Power output termination fuel engine power generation machine (5) of gas turbine (4); Form the electrification structure of fuel engine power generation unit.
3. the bootstrap system of a kind of distributed energy according to claim 1, it is characterized in that: the steam output end of described exhaust heat boiler (6) connects the steam input end of steam turbine (7), the input end of Power output termination steam turbine generator (8) of steam turbine (7), forms the electrification structure of steam turbine power generation unit.
4. the bootstrap system of a kind of distributed energy according to claim 1, it is characterized in that: the exhaust steam output terminal of described steam turbine (7) connects the input end of vapour condenser (9), the output terminal of vapour condenser (9) connects the boosting input end of feed water pump (10), the boosting output terminal of feed water pump (10) connects the water intake of exhaust heat boiler (6), the steam output end of exhaust heat boiler (6) connects the steam input end of steam turbine (7), forms steam turbine Lang Ken circulating generation loop.
5. the bootstrap system of a kind of distributed energy according to claim 1, it is characterized in that: the afterbody of described exhaust heat boiler (6) arranges hot water heat exchanger (11), the backwater output terminal of the low-temperature water heating backwater input termination heated by natural gas unit of hot water heat exchanger (11), the high-temperature-hot-water of hot water heat exchanger (11) exports the hot water input of termination heated by natural gas unit.
6. a kind of distributed energy bootstrap system as claimed in claim 1, is characterized in that: described heated by natural gas unit to be arranged in voltage-regulating system after flow measurement device and quick closing valve device.
7. a kind of distributed energy bootstrap system as described in Claims 1-4 any one, it is characterized in that: described heated by natural gas unit comprises booster pump A, booster pump B, natural device hot water heater A and natural gas hot water heater B, described natural gas hot water heater A and natural gas hot water heater B are connected the high-temperature-hot-water output terminal of hot water heat exchanger (11) by hot water water main pipe (12), described natural device hot water heater A and natural gas hot water heater B passes through the female low-temperature water heating backwater input end of managing (13) and being connected hot water heat exchanger (11) of hot water backwater by booster pump A and booster pump B.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201520321327.9U CN204704010U (en) | 2015-05-17 | 2015-05-17 | A kind of bootstrap system of distributed energy |
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| CN201520321327.9U CN204704010U (en) | 2015-05-17 | 2015-05-17 | A kind of bootstrap system of distributed energy |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819054A (en) * | 2015-05-17 | 2015-08-05 | 中国能源建设集团广东省电力设计研究院有限公司 | Distributed energy resource waste heat utilization system |
| CN105484815A (en) * | 2015-12-31 | 2016-04-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Fuel gas and steam combination system and running control method thereof |
| CN107763708A (en) * | 2017-11-07 | 2018-03-06 | 北京龙电宏泰环保科技有限公司 | It is used for the system and method for central heating suitable for multicomputer flue gas waste heat recovery |
-
2015
- 2015-05-17 CN CN201520321327.9U patent/CN204704010U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104819054A (en) * | 2015-05-17 | 2015-08-05 | 中国能源建设集团广东省电力设计研究院有限公司 | Distributed energy resource waste heat utilization system |
| CN105484815A (en) * | 2015-12-31 | 2016-04-13 | 中国能源建设集团广东省电力设计研究院有限公司 | Fuel gas and steam combination system and running control method thereof |
| CN105484815B (en) * | 2015-12-31 | 2018-10-23 | 中国能源建设集团广东省电力设计研究院有限公司 | Combustion and steam association system and its progress control method |
| CN107763708A (en) * | 2017-11-07 | 2018-03-06 | 北京龙电宏泰环保科技有限公司 | It is used for the system and method for central heating suitable for multicomputer flue gas waste heat recovery |
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Granted publication date: 20151014 |