CN210105984U - Device for controlling frequency converter of air cooling island fan of power plant - Google Patents
Device for controlling frequency converter of air cooling island fan of power plant Download PDFInfo
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- CN210105984U CN210105984U CN201920918472.3U CN201920918472U CN210105984U CN 210105984 U CN210105984 U CN 210105984U CN 201920918472 U CN201920918472 U CN 201920918472U CN 210105984 U CN210105984 U CN 210105984U
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Abstract
The utility model provides a device of control power plant's air cooling island fan converter belongs to the power plant equipment and reforms transform the field. Including two temperature sensor, engine field control cabinet and converter: the two temperature sensors are respectively installed at the positions of a machine head above a coupler of the internal combustion generator set and are respectively positioned at the positions of an A side and a B side which are close to a V-shaped engine cylinder, a power supply module, a control module, an analog signal input module and an analog signal output module are arranged in the engine field control cabinet, the signal output ends of the two temperature sensors are connected with the signal input end of the analog signal input module, the signal output end of the analog signal input module is connected with the signal input end of the control module, the signal output end of the control module is connected with the signal input end of the analog signal output module, and the signal output end of the analog signal output module is connected with a frequency converter of an air cooling island fan. The utility model discloses.
Description
Technical Field
The utility model relates to a power plant equipment reforms transform technical field, in particular to device of control power plant's air cooling island fan converter.
Background
In an internal combustion generator set for a power plant, mixed gas and air are pressurized by a turbocharger, cooled by an intercooler and then enter an engine cylinder to do work. At present, a temperature sensor on an engine of an internal combustion generator set is arranged at an outlet of an intercooler and is positioned close to a supercharger, and the gas internal combustion generator set frequently trips due to high temperature detected by the temperature sensor. The examination and analysis find that the phenomenon is caused by the following two reasons: 1. the installation position of the temperature sensor is close to the exhaust gas inlet shell of the supercharger at present and is easy to be radiated by high temperature, so that the measured temperature can not truly reflect the actual value of the temperature of the mixed gas entering the cylinder of the engine; 2. the temperature measured by a temperature sensor on the engine of the internal combustion generator set reflects the temperature of the mixed gas after being cooled by the intercooler and before the working of the air inlet cylinder. However, the actual value of the current temperature sensor is obviously affected by the cooling effect of the intercooler, the water inlet temperature of the intercooler cooling water is determined by the operating frequency of the air cooling island fan frequency converter, the frequency converter of the current air cooling island fan is controlled by the outlet temperature of the air cooling island cooling water instead of being controlled by the temperature sensor, when the temperature of the cooling water is reduced to a set value, the frequency of the fan is not increased any more, so that the temperature of the intercooler cooling water can not be reduced any more, and further, the gas and the air can not be cooled, and the gas internal combustion generator set can not operate normally.
Disclosure of Invention
In order to solve the control method of the converter of present air cooling island fan and lead to generating set to appear jumping and the technical problem that the temperature sensor position of present engine can not reflect the actual value of the gas mixture temperature who gets into engine cylinder easily, the utility model provides a device of control power plant's air cooling island fan converter.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the utility model provides a device of control power plant's air cooling island fan converter, its includes two temperature sensor, engine field control cabinet and converter, wherein: the two temperature sensors are respectively installed at the positions of a machine head above a coupler of the internal combustion generator set and are respectively positioned at the positions close to the side A and the side B of a V-shaped engine cylinder, a power supply module, a control module, an analog signal input module and an analog signal output module are arranged in the engine field control cabinet, the signal output ends of the two temperature sensors are connected with the signal input end of the analog signal input module, the signal output end of the analog signal input module is connected with the signal input end of the control module, the signal output end of the control module is connected with the signal input end of the analog signal output module, the signal output end of the analog signal output module is connected with a frequency converter of the air cooling island fan, and the power supply input ends of the control module, the analog signal input module and the analog signal output module are connected with the power.
Optionally, both temperature sensors pass 1 x 2 x 1mm2The cable is connected with the signal input end of the analog signal input module, and the signal output end of the analog signal output module passes through 1 × 2 × 1mm2The cable is connected with a frequency converter of the air cooling island fan.
Optionally, a cable fault tester is arranged on a cable connecting the signal output ends of the two temperature sensors and the signal input end of the analog signal input module.
Optionally, the frequency converter is installed in the cabinet body, and the cabinet body is provided with a vent hole.
Optionally, a temperature and humidity sensor is further arranged inside the cabinet body.
Optionally, an alarm module is further arranged in the engine field control cabinet, and a signal input end of the alarm module is connected with a signal output end of the control module.
Above-mentioned all optional technical scheme all can make up wantonly, the utility model discloses do not carry out the detailed description to the structure after the one-by-one combination.
The embodiment of the utility model provides a technical scheme can include following beneficial effect:
the two temperature sensors are respectively arranged at the positions of the machine heads above the coupler of the internal combustion generator set and are respectively positioned at the positions close to the side A and the side B of the V-shaped engine cylinder, so that the temperature of the cooled mixed gas can be truly reflected by data acquired by the temperature sensors. The signal output end of the analog signal output module is connected with the frequency converter of the air cooling island fan, the temperature signal of the frequency converter is changed from the temperature of cooling water cooled by the air cooling island into the temperature measured by the temperature sensor, and the temperature of the mixed gas after pressurized cooling can be controlled within the working range required by the unit.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic diagram of the circuit components in the field control cabinet of the engine of fig. 1.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.
As shown in fig. 1 and fig. 2, the embodiment of the utility model provides a device of control power plant's air cooling island fan converter includes two temperature sensor, engine field control cabinet and converter, wherein: the two temperature sensors are respectively installed at the positions of a machine head above a coupler of the internal combustion generator set and are respectively positioned at the positions close to the side A and the side B of a V-shaped engine cylinder, a power supply module, a control module, an analog signal input module and an analog signal output module are arranged in the engine field control cabinet, the signal output ends of the two temperature sensors are connected with the signal input end of the analog signal input module, the signal output end of the analog signal input module is connected with the signal input end of the control module, the signal output end of the control module is connected with the signal input end of the analog signal output module, the signal output end of the analog signal output module is connected with a frequency converter of the air cooling island fan, and the power supply input ends of the control module, the analog signal input module and the analog signal output module are connected with the power.
The positions of the two temperature sensors should reflect the position of the cooled mixture temperature most truly. However, because of the engine during operation, high temperature heat dissipation pipeline and part are covered with to gas mixture (gas after mixing and air) pipeline next door, consequently, for avoiding these high temperature heat dissipation pipeline and part to produce too big influence to temperature sensor, the utility model discloses the selection is installed temperature sensor and is regarded as the position of the most true reflection gas mixture temperature after the cooling in the position that the thermal radiation influence is minimum. Further, in order to determine the position, the temperature of a gas mixing main pipe of the gas internal combustion engine body can be measured through an infrared thermal imager. The utility model discloses through surveying the position at definite internal combustion generating set shaft coupling top aircraft nose place, the temperature of the female pipe of position mixer of the A side and the B side that is close to V type engine cylinder is minimum, consequently, installs two temperature sensor in this position.
The utility model discloses when using, two temperature sensor real-time detection get into the temperature of the mist of cylinder to send the temperature data who gathers to the analog signal input module in the engine field control cabinet, further send temperature data to control module by analog signal input module, the operating frequency of converter is controlled to the temperature data of control module control analog signal output module output. For example, the control module can preset the maximum temperature data of the temperature sensor to control the operating frequency of the air cooling island fan frequency converter, so that the temperature sensor is ensured to be within the range required by the unit operation, and the temperature jump of the air cooling island fan frequency converter due to the temperature sensor is avoided. And in combination with the field operation condition, the control module can preset that when the temperatures of the two temperature sensors are changed within the range of 35-58 ℃, the frequency of the frequency converter of the air cooling island fan is adjusted within the range of 5-50HZ, so that the frequency of the frequency converter is ensured to be within the range allowed by the normal operation of the unit.
Optionally, both temperature sensors pass 1 x 2 x 1mm2The cable is connected with the signal input end of the analog signal input module, and the signal output end of the analog signal output module passes through 1 × 2 × 1mm2The cable is connected with a frequency converter of the air cooling island fan.
Optionally, a cable fault tester is arranged on a cable connecting the signal output ends of the two temperature sensors and the signal input end of the analog signal input module. The cable fault tester is used for detecting whether a cable between the temperature sensor and the analog signal input module in the engine field control cabinet breaks down in real time, and can find out the cable in time when the cable breaks down.
Optionally, the frequency converter is installed in the cabinet body, and the cabinet body is provided with a vent hole. Through installing the converter in the cabinet body, ensure that the converter can avoid the influence of natural phenomena such as wind-blow, drench, solarization and dust to improve the life of converter. Further, a temperature and humidity sensor is further arranged inside the cabinet body. Temperature and humidity sensing is used for temperature data and humidity data in the cabinet body where the frequency converter is located in real time, and whether the working environment of the frequency converter is suitable for normal operation of the frequency converter or not can be found in time.
Optionally, an alarm module is further arranged in the engine field control cabinet, and a signal input end of the alarm module is connected with a signal output end of the control module. When the control module determines that the temperature data acquired by the two temperature sensors are abnormal, the control module controls the alarm module to alarm and remind workers. The alarm module can be a sound alarm device, a light alarm device, a sound-light alarm device and the like.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (6)
1. The utility model provides a device of control power plant's air cooling island fan converter, its characterized in that, the device of control power plant's air cooling island fan converter includes two temperature sensor, engine field control cabinet and converter, wherein:
the two temperature sensors are respectively installed at the positions of a machine head above a coupler of the internal combustion generator set and are respectively positioned at the positions close to the side A and the side B of a V-shaped engine cylinder, a power supply module, a control module, an analog signal input module and an analog signal output module are arranged in the engine field control cabinet, the signal output ends of the two temperature sensors are connected with the signal input end of the analog signal input module, the signal output end of the analog signal input module is connected with the signal input end of the control module, the signal output end of the control module is connected with the signal input end of the analog signal output module, the signal output end of the analog signal output module is connected with a frequency converter of the air cooling island fan, and the power supply input ends of the control module, the analog signal input module and the analog signal output module are connected with the power.
2. The apparatus of claim 1, wherein the two temperature sensors each pass through 1 x 2 x 1mm2The cable is connected with the signal input end of the analog signal input module, and the signal output end of the analog signal output module passes through 1 × 2 × 1mm2The cable is connected with a frequency converter of the air cooling island fan.
3. The device for controlling the frequency converter of the air cooling island of the power plant according to claim 1 or 2, wherein a cable fault tester is arranged on a cable connecting the signal output ends of the two temperature sensors and the signal input end of the analog signal input module.
4. The device for controlling the frequency converter of the air cooling island fan of the power plant as claimed in claim 1, wherein the frequency converter is installed in a cabinet body, and the cabinet body is provided with a ventilation hole.
5. The device for controlling the frequency converter of the air cooling island fan of the power plant according to claim 4, wherein a temperature and humidity sensor is further arranged inside the cabinet body.
6. A device for controlling a frequency converter of a fan of an air cooling island of a power plant according to claim 1, wherein an alarm module is further provided in the engine field control cabinet, and a signal input end of the alarm module is connected with a signal output end of the control module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920918472.3U CN210105984U (en) | 2019-06-18 | 2019-06-18 | Device for controlling frequency converter of air cooling island fan of power plant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920918472.3U CN210105984U (en) | 2019-06-18 | 2019-06-18 | Device for controlling frequency converter of air cooling island fan of power plant |
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| CN210105984U true CN210105984U (en) | 2020-02-21 |
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| CN201920918472.3U Active CN210105984U (en) | 2019-06-18 | 2019-06-18 | Device for controlling frequency converter of air cooling island fan of power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790096A (en) * | 2021-11-18 | 2021-12-14 | 山西凯嘉煤层气发电有限公司 | Operation control method for variable frequency fan of gas generator set |
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2019
- 2019-06-18 CN CN201920918472.3U patent/CN210105984U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113790096A (en) * | 2021-11-18 | 2021-12-14 | 山西凯嘉煤层气发电有限公司 | Operation control method for variable frequency fan of gas generator set |
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