CN205876502U - A natural gas heating mechanism for gas and steam combined cycle unit gas turbine - Google Patents
A natural gas heating mechanism for gas and steam combined cycle unit gas turbine Download PDFInfo
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- CN205876502U CN205876502U CN201620836414.2U CN201620836414U CN205876502U CN 205876502 U CN205876502 U CN 205876502U CN 201620836414 U CN201620836414 U CN 201620836414U CN 205876502 U CN205876502 U CN 205876502U
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- hot water
- natural gas
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Abstract
The utility model relates to a natural gas heating mechanism for gas and steam combined cycle unit gas turbine lies in utilizing the hot water input joint in the auxiliary boiler steam pocket to heat the natural gas to the performance heater of the leading module of gas turbine in, the performance heater is including the inlet tube and the outlet pipe that communicate each other, natural gas heating mechanism includes hot water input joint interface, hot water output interface and inlet channel, the hot water input joint interface is connected with the auxiliary boiler steam pocket, and the hot water input joint interface passes through inlet channel and hot water output interface connection, the water piping connection that advances of hot water output interface and performance heater, the auxiliary boiler steam pocket passes through hot water input joint interface, inlet channel, hot water output interface, inlet tube and performance heater intercommunication, be provided with stop valve and flow control valve on the inlet channel.
Description
Technical field
This utility model relates to generating set field, more particularly, to one for Combined cycle gas-steam turbine unit
The heated by natural gas mechanism of gas turbine.
Background technology
At present, the gas turbine of Combined cycle gas-steam turbine unit is on startup, it is desirable to the temperature of input natural gas is the lowest
In the threshold value set, when the gas turbine of such as ANSALDO AE94.3A gas combustion-gas vapor combined cycle unit requires igniting
Natural gas temperature be not less than 10 DEG C.To this end, weather is colder when, natural gas must be through before input gas turbine
Cross heat treated so that the temperature of natural gas meets the requirement of gas turbine.
At present, typically arranging electric heater in the preposition module of gas turbine, the natural gas of input is entering combustion gas wheel
It is heated to suitable temperature by electric heater before machine, then inputs gas turbine.But electric heater is specifically used
Time easily suffer from the drawback that
1) in the case of protection is malfunctioning, electric heater heating overtemperature can make gas explosion accident；
2) electric heater can lose efficacy, so that periodically tie up electric heater in the case of not using for a long time
Protect, produce the problem that maintenance cost rises；
3) potential safety hazard of electric heater is bigger.
Utility model content
This utility model is the difficult problem solving above prior art, it is provided that a kind of for Combined cycle gas-steam turbine unit
The heated by natural gas mechanism of gas turbine, this system can be prevented effectively from the situation producing heating overtemperature in use.
For realizing above utility model purpose, the technical scheme is that
A kind of heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine, is to utilize starting trouble
Natural gas is heated to the performance heater of the preposition module of gas turbine by the hot water input in drum, and described performance heats
Device includes that water inlet pipe and the outlet pipe being interconnected, described heated by natural gas mechanism include that the output of hot water input interface, hot water connects
Mouth and inlet channel, described hot water input interface is connected with starting trouble drum, and hot water input interface is by inlet channel and warm
Water output interface connects, and hot water output interface is connected with the water inlet pipe of performance heater, and described starting trouble drum passes through hot water
Input interface, inlet channel, hot water output interface, water inlet pipe connect with performance heater, described inlet channel is provided with and cuts
Only valve and flow control valve.
When needs use heated by natural gas mechanism to heat natural gas, it is first turned on stop valve, now starts pot
Hot water in stove drum is inputted to performance heater by hot water input interface, inlet channel, hot water output interface, water inlet pipe
In, natural gas is heated by hot water, and the temperature of natural gas exports after being increased to the temperature required in performance heater.At tool
In the implementation process of body, by the flow of the hot water that Flow-rate adjustment valve regulation flows into performance heater, the rate of heat addition can be entered
Row sum-equal matrix.Hot water in performance heater is by, outside outlet pipe discharging performance heater, being such as expelled to steam turbine condenser
Or be exhausted directly in neighbouring flash vessel or drain.After completing the heating of natural gas, close stop valve and flow control valve.
In such scheme, utilizing the hot water in starting trouble drum that natural gas carries out heating has two benefits, and one is nothing
Need ancillary cost fund to purchase electric heater, reduce the investment of project；Two is that the temperature of the hot water in starting trouble drum is general
Less than 220 DEG C, therefore at most by the heated by natural gas in performance heater to 220 DEG C, the point of this temperature distance natural gas
Combustion temperature (270 DEG C 540 DEG C) also has bigger distance, the generation gas explosion caused thus without producing heating overtemperature
The situation of accident, its safety is greatly improved.
Preferably, starting trouble drum be performance heater be attached with when connecting, can be at starting trouble drum
On offer new outlet, it is also possible to utilize the outlet of existing starting trouble, such as, this scheme can be used: start
The blow-off pipe of boiler-steam dome is connected with hot water input interface, and starting trouble drum passes through blow-off pipe, hot water input interface, water inlet pipe
Road, hot water output interface, water inlet pipe connect with performance heater.Hot water in starting trouble drum can be exported by blow-off pipe
To performance heater, but specifically used when, the cleanliness factor of the hot water that blow-off pipe is initially discharged may be not so good,
At this moment should wait a few minutes, wait hot water cleanliness factor situation relatively good time re-use heating arrangements by starting trouble drum with
Performance heater connects and connection is got up.
Preferably, described heated by natural gas mechanism also includes water return pipeline, one end of water return pipeline and performance heater
Outlet pipe connect, the other end of water return pipeline is connected with the oxygen-eliminating device of starting trouble or water tank, and performance heater passes through backwater
Pipeline connects with oxygen-eliminating device or the water tank of starting trouble.Water return pipeline is for arriving the hot water backwater exported through performance heater
In starting trouble, form the circulation of a heating, saving water resource effectively.
Preferably, easily there is the situation of buildup in the inside of heating arrangements pipeline after a protracted use, in order to
Blowoff valve can be provided with on the inlet channel of the heating arrangements of the present invention and water return pipeline by these dirt discharge lines.
Preferably, described inlet channel is provided with two stop valves and a flow control valve.
Preferably, it is provided with thermometer in described inlet channel.Thermometer is for gathering the temperature data of hot water, for technology
Personnel's temperature conditions of electrolyzing hot water.
Preferably, it is provided with effusion meter and Pressure gauge in described inlet channel.Effusion meter and Pressure gauge are respectively used to gather
The flow of hot water and hydraulic pressure conditions.Understand for technical staff.
Compared with prior art, the beneficial effects of the utility model are:
1) purchase electric heater without ancillary cost fund, reduce the investment of project.
2) temperature of the hot water in starting trouble drum is usually no more than 220 DEG C, therefore at most by performance heater
Heated by natural gas to 220 DEG C, the ignition temperature (270 DEG C 540 DEG C) of this temperature distance natural gas also has bigger distance, because of
This situation that gas explosion accident occurs that will not produce heating overtemperature and cause, its safety is greatly improved.
Accompanying drawing explanation
Fig. 1 is the structural representation of heating arrangements.
Detailed description of the invention
Accompanying drawing being merely cited for property explanation, it is impossible to be interpreted as the restriction to this patent；
Below in conjunction with drawings and Examples, this utility model is further elaborated.
Embodiment 1
Marrow of the present utility model is to utilize the hot water in starting trouble drum to input to the preposition module of gas turbine
In performance heater 1 heating natural gas, this scheme has two kinds of benefits, and one is to purchase electricity without ancillary cost fund
Heater, reduces the investment of project；Two is that the temperature of the hot water in starting trouble drum is usually no more than 220 DEG C, the most at most
By the heated by natural gas in performance heater 1 to 220 DEG C, the ignition temperature (270 DEG C 540 DEG C) of this temperature distance natural gas
Also have bigger distance, the situation that gas explosion accident occurs caused thus without producing heating overtemperature, its safety
It is greatly improved.
As it is shown in figure 1, heated by natural gas mechanism includes hot water input interface, hot water output interface and inlet channel 2, described
Hot water input interface is connected with starting trouble drum, and hot water input interface is connected with hot water output interface by inlet channel 2, heat
Water output interface is connected with the water inlet pipe of performance heater 1, and described starting trouble drum passes through hot water input interface, inlet channel
2, hot water output interface, water inlet pipe connect with performance heater 1, and described inlet channel 2 is provided with stop valve 3 and Flow-rate adjustment
Valve.
When needs use heated by natural gas mechanism to heat natural gas, it is first turned on stop valve 3, now starts pot
Hot water in stove drum is inputted to performance heater 1 by hot water input interface, inlet channel 2, hot water output interface, water inlet pipe
In, natural gas is heated by hot water, and the temperature of natural gas exports after being increased to the temperature required in performance heater 1.?
In concrete implementation process, can be come heating speed by the flow of the hot water that Flow-rate adjustment valve regulation flows into performance heater 1
Rate is adjusted.Hot water in performance heater 1 is by, outside outlet pipe discharging performance heater 1, being such as expelled to steam turbine
Condenser or be exhausted directly in neighbouring flash vessel or drain.After completing the heating of natural gas, close stop valve 3 and flow is adjusted
Joint valve.
In such scheme, utilizing the hot water in starting trouble drum that natural gas carries out heating has two benefits, and one is nothing
Need ancillary cost fund to purchase electric heater, reduce the investment of project；Two is that the temperature of the hot water in starting trouble drum is general
Less than 220 DEG C, therefore at most by the heated by natural gas in performance heater 1 to 220 DEG C, the point of this temperature distance natural gas
Combustion temperature (270 DEG C 540 DEG C) also has bigger distance, the generation gas explosion caused thus without producing heating overtemperature
The situation of accident, its safety is greatly improved.
Wherein, it is provided with thermometer in inlet channel 2.Thermometer is for gathering the temperature data of hot water, for technical staff
The temperature conditions of electrolyzing hot water.In concrete implementation process, in inlet channel 2, it is provided with effusion meter and Pressure gauge.Effusion meter
It is respectively used to gather flow and the hydraulic pressure conditions of hot water with Pressure gauge.Understand for technical staff.
In the present embodiment, starting trouble drum be performance heater 1 be attached with when connecting, can be at starting trouble
Offer new outlet on drum, it is also possible to utilize the outlet of existing starting trouble, such as, this scheme can be used:
The blow-off pipe of starting trouble drum is connected with hot water input interface, and starting trouble drum passes through blow-off pipe, hot water input interface, enters
Waterpipe 2, hot water output interface, water inlet pipe connect with performance heater 1.Hot water in starting trouble drum can pass through blowdown
Pipe exports to performance heater 1, but specifically used when, the cleanliness factor of the hot water that blow-off pipe is initially discharged may
Poorly, at this moment should wait a few minutes, the cleanliness factor situation of wait hot water re-uses heating arrangements time relatively good will start pot
Stove drum is connected with performance heater 1 and connects.
In the present embodiment, as it is shown in figure 1, heated by natural gas mechanism also includes water return pipeline 4, one end of water return pipeline 4
Being connected with the outlet pipe of performance heater 1, the other end of water return pipeline 4 is connected with the oxygen-eliminating device of starting trouble or water tank, performance
Heater 1 is connected with oxygen-eliminating device or the water tank of starting trouble by water return pipeline 4.Water return pipeline 4 will be for heating through performance
The hot water backwater of device 1 output, in starting trouble, forms one circulation heated, saving water resource effectively.
In the present embodiment, easily there is the situation of buildup in the inside of heating arrangements pipeline after a protracted use,
In order to by these dirt discharge lines, the row of being provided with on the inlet channel 2 of the heating arrangements of the present invention and water return pipeline
Dirty valve 5.
Obviously, above-described embodiment of the present utility model is only for clearly demonstrating this utility model example, and
It it is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.Here without also all of embodiment being given
Exhaustive.All any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, should be included in
Within this utility model scope of the claims.
Claims (7)
1., for a heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine, it is to utilize starting trouble vapour
Natural gas is heated to the performance heater of the preposition module of gas turbine by the hot water input in bag, described performance heater
Including the water inlet pipe being interconnected and outlet pipe, it is characterised in that: described heated by natural gas mechanism includes hot water input interface, heat
Water output interface and inlet channel, described hot water input interface is connected with starting trouble drum, and hot water input interface is by water inlet
Pipeline is connected with hot water output interface, and hot water output interface is connected with the water inlet pipe of performance heater, described starting trouble drum
Connected with performance heater by hot water input interface, inlet channel, hot water output interface, water inlet pipe, on described inlet channel
It is provided with stop valve and flow control valve.
Heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine the most according to claim 1, its
Being characterised by: the blow-off pipe of described starting trouble drum is connected with hot water input interface, starting trouble drum passes through blow-off pipe, heat
Water input interface, inlet channel, hot water output interface, water inlet pipe connect with performance heater.
Heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine the most according to claim 1, its
It is characterised by: described heated by natural gas mechanism also includes water return pipeline, one end of water return pipeline and the water outlet of performance heater
Pipe connect, the other end of water return pipeline is connected with the oxygen-eliminating device of starting trouble or water tank, performance heater pass through water return pipeline and
The oxygen-eliminating device of starting trouble or water tank connection.
Heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine the most according to claim 3, its
It is characterised by: on described inlet channel and water return pipeline, be provided with blowoff valve.
Heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine the most according to claim 1, its
It is characterised by: on described inlet channel, be provided with two stop valves and a flow control valve.
6. according to the heated by natural gas for Combined cycle gas-steam turbine unit gas turbine described in any one of claim 1 ~ 5
Mechanism, it is characterised in that: it is provided with thermometer in described inlet channel.
Heated by natural gas mechanism for Combined cycle gas-steam turbine unit gas turbine the most according to claim 6, its
It is characterised by: in described inlet channel, be provided with effusion meter and Pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620836414.2U CN205876502U (en) | 2016-08-04 | 2016-08-04 | A natural gas heating mechanism for gas and steam combined cycle unit gas turbine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620836414.2U CN205876502U (en) | 2016-08-04 | 2016-08-04 | A natural gas heating mechanism for gas and steam combined cycle unit gas turbine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205876502U true CN205876502U (en) | 2017-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620836414.2U Expired - Fee Related CN205876502U (en) | 2016-08-04 | 2016-08-04 | A natural gas heating mechanism for gas and steam combined cycle unit gas turbine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205876502U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829832A (en) * | 2017-11-16 | 2018-03-23 | 大连派思燃气***股份有限公司 | Circulation bypath system for performance heater |
| CN110360010A (en) * | 2019-07-01 | 2019-10-22 | 华电电力科学研究院有限公司 | A kind of gas turbine gas inlet heating system and its control method |
| CN111577460A (en) * | 2020-05-09 | 2020-08-25 | 广州华跃电力工程设计有限公司 | Method for improving efficiency of gas turbine and removing white smoke |
| CN112197295A (en) * | 2020-10-28 | 2021-01-08 | 常熟市飞奥压力容器制造有限公司 | High-temperature high-pressure performance heater |
-
2016
- 2016-08-04 CN CN201620836414.2U patent/CN205876502U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107829832A (en) * | 2017-11-16 | 2018-03-23 | 大连派思燃气***股份有限公司 | Circulation bypath system for performance heater |
| CN110360010A (en) * | 2019-07-01 | 2019-10-22 | 华电电力科学研究院有限公司 | A kind of gas turbine gas inlet heating system and its control method |
| CN110360010B (en) * | 2019-07-01 | 2024-01-30 | 华电电力科学研究院有限公司 | Gas turbine gas inlet heating system and control method thereof |
| CN111577460A (en) * | 2020-05-09 | 2020-08-25 | 广州华跃电力工程设计有限公司 | Method for improving efficiency of gas turbine and removing white smoke |
| CN112197295A (en) * | 2020-10-28 | 2021-01-08 | 常熟市飞奥压力容器制造有限公司 | High-temperature high-pressure performance heater |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170111 Termination date: 20190804 |