CN213392399U - Electric heating device before starting combustion engine - Google Patents
Electric heating device before starting combustion engine Download PDFInfo
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- CN213392399U CN213392399U CN202021867607.7U CN202021867607U CN213392399U CN 213392399 U CN213392399 U CN 213392399U CN 202021867607 U CN202021867607 U CN 202021867607U CN 213392399 U CN213392399 U CN 213392399U
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Abstract
The utility model provides an electric heater unit before gas turbine starts, an air inlet pipe, electric heater, the outlet duct end to end connects, it has the bypass pipe to connect between intake pipe front end and the outlet duct rear end, the intake pipe upper end is equipped with the entry thermometer, the entry thermocouple, flow switch, the electric heater rear end has the electric heater core, the electric heater upper end is equipped with the barrel manometer, automatic valve of diffusing, manual ball valve of diffusing and the manual stop valve that diffuses that meets with manual ball valve of diffusing, manual check valve of diffusing, the termination has manual blowoff valve under the electric heater, the nitrogen charging valve, the outlet duct upper end is equipped with the export thermometer, the export thermocouple, bypass pipe front end is equipped with the air inlet, the rear end is equipped with the gas outlet, the middle part has connect bypass electric ball valve. Has the advantages of controllable gas temperature, safety, reliability and the like.
Description
Technical Field
The utility model relates to an electric heating module for the gas system especially relates to an electric heater unit before gas turbine starts.
Background
In the existing gas system, an electric heating device heats natural gas before entering a gas turbine, so that the temperature of the natural gas entering the gas turbine is ensured, the temperature rise of the existing electric heating device is low, the outlet temperature is difficult to control, and the temperature requirement of the natural gas entering the gas turbine cannot be met.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides an electric heating device before the starting of a gas turbine.
The technical solution of the utility model is that: an electric heating device before starting of a combustion engine is characterized in that: intake pipe, electric heater, outlet duct end to end connect, have connect the bypass pipe between intake pipe front end and the outlet duct rear end, intake pipe upper end be equipped with entry thermometer, entry thermocouple, flow switch, the electric heater rear end connect and have the electric heater core, electric heater upper end be equipped with barrel manometer, automatic diffusion valve, manual diffusion ball valve and with manual diffusion ball valve meet manual diffusion stop valve, manual diffusion check valve, electric heater lower termination have manual blowoff valve, fill the nitrogen valve, the outlet duct upper end be equipped with export thermometer, export thermocouple, bypass pipe front end be equipped with the air inlet, the rear end is equipped with the gas outlet, the middle part has connect bypass electric ball valve, bypass pipe front portion be equipped with the manometer.
Compared with the prior art, the utility model have following advantage:
1. the preheating device is used for preheating the gas before the gas enters the gas turbine, and can ensure that the temperature of the gas is increased to 10 ℃ (from 5 ℃ to 15 ℃) when the maximum flow rate is 30%;
2. used for controlling the temperature of the gas outlet; controlling the outlet temperature to be a set value;
3. the device can realize stepless power regulation, and the MARKVIe controls the power of the controllable silicon of the electric heater according to the temperature feedback signal at the outlet of the electric heater, so that the temperature at the outlet of the electric heater is controlled to be a certain value;
4. when the pressure reaches a set value, the automatic overpressure relief valve is opened and timely discharged, and the automatic overpressure relief system is safe and reliable.
Drawings
Fig. 1 is a schematic diagram of an embodiment of the present invention.
In the figure: 1. the device comprises an electric heater, 2, an inlet thermocouple, 3, an outlet thermocouple, 4, an inlet thermometer, 5, an outlet thermometer, 6, a cylinder pressure gauge, 7, an electric heater core, 8, a flow switch, 9, a bypass electric ball valve, 10, an automatic bleeding valve, 11, a manual bleeding ball valve, 12, a manual bleeding stop valve, 13, a manual bleeding check valve, 14, a manual blow-down valve, 15, a nitrogen charging valve, 16, a pressure gauge, 17, an air inlet pipe, 18, an air outlet pipe, 19 and a bypass pipe.
Detailed Description
The embodiments are described below with reference to the accompanying drawings:
the utility model relates to an electric heating device before starting a combustion engine, which is formed by connecting an air inlet pipe 17, an electric heater 1 and an air outlet pipe 18 end to end, wherein a bypass pipe 19 is connected between the front end of the air inlet pipe 17 and the rear end of the air outlet pipe 18, the upper end of the air inlet pipe 17 is provided with an inlet thermometer 4, an inlet thermocouple 2 and a flow switch 8, the rear end of the electric heater 1 is connected with an electric heater core 7, the upper end of the electric heater 1 is provided with a cylinder pressure gauge 6 and an automatic bleeding valve 10, the manual diffusion ball valve 11, and the manual diffusion stop valve 12, the manual diffusion check valve 13 that meet with the manual diffusion ball valve 11, the lower termination of electric heater 1 has manual blowoff valve 14, fills nitrogen valve 15, the upper end of outlet duct 18 is equipped with export thermometer 5, export thermocouple 3, bypass pipe 19 front end is equipped with the air inlet, the rear end is equipped with the gas outlet, the middle part is connected with bypass electric ball valve 9, bypass pipe 19 front portion is equipped with manometer 16.
The specific operation mode is as follows: the gas temperature is controlled by a thyristor controller. The control cabinet of the electric heater 1 is placed in a non-dangerous area, and an indicator light is used for displaying an alarm signal inside the electric heater 1 on the cabinet surface. An inlet thermocouple 2 and an outlet thermocouple 3 are arranged at the inlet and the outlet of the heater 1 to detect the gas temperature at the inlet and the outlet, and signals are sent to MARKVIe; an inlet thermometer 4, a pressure gauge 16 and an outlet thermometer 5 are arranged at the inlet and the outlet of the electric heater 1; the electric heater 1 is provided with a cylinder pressure gauge 6; each electric heater core 7 is provided with three thermocouples which are arranged along with the tube bundle, three thermocouples which are arranged on the shell, and another thermocouple which is arranged on a flange and is used for preventing the overtemperature of the electric heating tube bundle, the overtemperature of the shell and the overtemperature of the inlet of the heating element, and only can be manually reset when the overtemperature is cut off; all signals are connected to the junction box and then connected to the control cabinet of the electric heater 1 for remote transmission. 80GEH-1(MBP40CF301) -minimum gas flow (permission) signal, the gas minimum flow detection switch 8 is closed, the contact is closed, the heater is allowed to heat, otherwise, the heating is not allowed, thereby ensuring that the electric heater 1 is cut off when the flow is small, and preventing the over-temperature regulation. All signals are connected to the junction box and then connected to the control cabinet of the electric heater 1 for remote transmission, and the temperature value of the electric heater 1 for heating the natural gas is detected at any time to meet the starting requirement of the combustion engine.
Claims (1)
1. An electric heating device before starting of a combustion engine is characterized in that: an air inlet pipe (17), an electric heater (1), an air outlet pipe (18) are connected end to end, a bypass pipe (19) is connected between the front end of the air inlet pipe (17) and the rear end of the air outlet pipe (18), an inlet thermometer (4), an inlet thermocouple (2) and a flow switch (8) are arranged at the upper end of the air inlet pipe (17), an electric heater core (7) is connected at the rear end of the electric heater (1), a cylinder pressure gauge (6), an automatic diffusion valve (10), a manual diffusion ball valve (11), a manual diffusion stop valve (12) and a manual diffusion check valve (13) are arranged at the upper end of the electric heater (1), a manual blow-off valve (14) and a nitrogen charging valve (15) are connected at the lower end of the electric heater (1), an outlet thermometer (5) and an outlet thermocouple (3) are arranged at the upper end of the air outlet pipe (18), an air inlet is arranged at the front end of the bypass pipe (19), the rear end is provided with an air outlet, the middle part is connected with a bypass electric ball valve (9), and the front part of a bypass pipe (19) is provided with a pressure gauge (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021867607.7U CN213392399U (en) | 2020-08-31 | 2020-08-31 | Electric heating device before starting combustion engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021867607.7U CN213392399U (en) | 2020-08-31 | 2020-08-31 | Electric heating device before starting combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213392399U true CN213392399U (en) | 2021-06-08 |
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ID=76212531
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021867607.7U Active CN213392399U (en) | 2020-08-31 | 2020-08-31 | Electric heating device before starting combustion engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213392399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160838A (en) * | 2020-08-31 | 2021-01-01 | 大连派思燃气设备有限公司 | Electric heating device before starting combustion engine |
-
2020
- 2020-08-31 CN CN202021867607.7U patent/CN213392399U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112160838A (en) * | 2020-08-31 | 2021-01-01 | 大连派思燃气设备有限公司 | Electric heating device before starting combustion engine |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Shuifa PAISI Gas Co.,Ltd. Assignor: Dalian PAISI Gas Equipment Co.,Ltd. Contract record no.: X2023210000001 Denomination of utility model: An electric heating device before starting gas turbine Granted publication date: 20210608 License type: Exclusive License Record date: 20230105 |