CN218601728U - High-voltage variable-frequency room temperature and humidity control system - Google Patents
High-voltage variable-frequency room temperature and humidity control system Download PDFInfo
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- CN218601728U CN218601728U CN202222983817.8U CN202222983817U CN218601728U CN 218601728 U CN218601728 U CN 218601728U CN 202222983817 U CN202222983817 U CN 202222983817U CN 218601728 U CN218601728 U CN 218601728U
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- 238000006243 chemical reaction Methods 0.000 claims abstract description 18
- 238000005057 refrigeration Methods 0.000 claims description 13
- 230000008859 change Effects 0.000 claims description 8
- 238000001816 cooling Methods 0.000 abstract description 2
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 4
- 241000732800 Cymbidium Species 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
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Abstract
The utility model relates to the technical field of temperature and humidity control, in particular to a high-voltage frequency conversion room temperature and humidity control system, which comprises a PLC controller, a high-voltage frequency converter, a refrigerating unit, an indoor temperature and humidity sensor and an outdoor temperature and humidity sensor, wherein the high-voltage frequency converter, the refrigerating unit, the indoor temperature and humidity sensor and the outdoor temperature and humidity sensor are respectively electrically connected with the PLC controller; the indoor and outdoor temperature and humidity sensors are used for detecting the temperature and humidity inside and outside the frequency conversion room; the dehumidifier is used for reducing the humidity value in the frequency conversion chamber; the PLC controls the start and stop of the dehumidifier and the refrigerating unit according to the temperature and humidity values inside and outside the frequency conversion chamber detected by the temperature and humidity sensor. The utility model controls the work of the refrigerating unit through the PLC controller, and realizes the cooling of the frequency converter chamber; in addition, the environmental temperature when rationally utilizing the low temperature through to the indoor outer temperature of converter, humidity contrast, realizes the indoor humiture automatically regulated of converter.
Description
Technical Field
The utility model relates to a atmospheric control technical field especially relates to a high-pressure frequency conversion room temperature humidity control system.
Background
The frequency converter has obvious energy-saving effect and is widely applied to fans and water pumps.
When the frequency converter operates, the self can generate a large amount of heat, but when the temperature is too high, the frequency converter can break down, the operation of equipment is influenced, and great influence is brought to the production of enterprises. Generally, high-capacity high-voltage frequency converters above 10KV are provided with matched frequency converter chambers, and air conditioners and other equipment are adopted to maintain indoor temperature so as to guarantee normal operation of the equipment. However, the frequency converter room is generally unattended, the indoor temperature cannot be adjusted in time, when the refrigeration equipment is fully opened, energy waste is caused, and when the refrigeration equipment is opened less, the indoor temperature is higher, so that equipment failure is caused.
SUMMERY OF THE UTILITY MODEL
In order to overcome the problems in the prior art, the utility model controls the refrigeration unit to work through the PLC controller, thereby realizing the cooling of the frequency converter chamber; in addition, the environmental temperature when rationally utilizing the low temperature through to the indoor outer temperature of converter, humidity contrast, realizes the indoor humiture automatically regulated of converter.
The utility model adopts the technical scheme as follows: a high-voltage frequency conversion room temperature and humidity control system: the refrigeration system comprises a PLC (programmable logic controller), a refrigeration unit, an indoor temperature and humidity sensor and an outdoor temperature and humidity sensor, wherein the refrigeration unit, the indoor temperature and humidity sensor and the outdoor temperature and humidity sensor are respectively and electrically connected with the PLC;
the indoor temperature and humidity sensor is used for detecting the temperature and the humidity in the variable frequency chamber;
the outdoor temperature and humidity sensor is used for detecting the temperature and the humidity of the variable-frequency outdoor environment;
the dehumidifier is used for reducing the humidity value in the variable frequency chamber;
when the high-voltage frequency converter works, the change of indoor temperature is caused by the change of heat productivity;
the PLC controls the start and stop of the dehumidifier and the refrigerating unit according to the temperature and humidity values inside and outside the variable frequency chamber detected by the temperature and humidity sensor.
Furthermore, the air conditioner also comprises a high-voltage frequency converter, and the change of the heating value of the high-voltage frequency converter causes the change of the indoor temperature when the high-voltage frequency converter works.
Furthermore, the air inlet fan and the air exhaust fan are further included, the air inlet fan and the air exhaust fan are electrically connected with the PLC, and the PLC adjusts the power of the air inlet fan and the air exhaust fan according to the detected temperature values inside and outside the frequency conversion chamber, so that the temperature reduction inside the frequency conversion chamber is realized.
Furthermore, four refrigerating machine sets are arranged.
The system further comprises an audible and visual alarm which is electrically connected with the PLC, and when the temperature and the humidity in the variable frequency chamber are lower than the set values of the PLC, an alarm is triggered;
furthermore, the system also comprises a fault display, the fault display is electrically connected with the PLC, and the working states of the variable frequency indoor and outdoor temperature and humidity parameters, the high frequency converter, the dehumidifier, the air inlet fan, the air outlet fan and the refrigerating unit are presented in real time through the fault display.
The utility model has the advantages that:
1. the PLC adjusts the working states of the exhaust fan, the air inlet fan and the refrigerating unit according to indoor temperature and humidity data acquired by the indoor and outdoor temperature and humidity sensors, achieves the effects of automatic control and power saving, and triggers an alarm when the indoor temperature exceeds a set value or the fan and the refrigerating equipment have faults;
2. through gathering the contrast to indoor outer temperature, usable fan cools down when outdoor temperature is lower, reduces the indoor temperature rise of control converter, reaches energy-conserving effect.
Drawings
FIG. 1 is a diagram of the high-voltage variable-frequency room temperature and humidity control system of the present invention;
fig. 2 is a side view of the positions of the devices in the high-voltage frequency conversion chamber;
fig. 3 is a top view of each device position of the high-voltage frequency conversion chamber of the present invention.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings.
A high-voltage variable-frequency room temperature and humidity control system, as shown in fig. 1, comprising:
the refrigeration system comprises a PLC (programmable logic controller), a refrigeration unit, an indoor temperature and humidity sensor and an outdoor temperature and humidity sensor, wherein the refrigeration unit, the indoor temperature and humidity sensor and the outdoor temperature and humidity sensor are respectively and electrically connected with the PLC;
the indoor temperature and humidity sensor is used for detecting the temperature and the humidity in the variable frequency chamber;
the outdoor temperature and humidity sensor is used for detecting the temperature and the humidity of the frequency conversion outdoor environment;
the dehumidifier is used for reducing the humidity value in the variable frequency chamber;
when the high-voltage frequency converter works, the change of the heat productivity causes the change of the indoor temperature;
the PLC controls the start and stop of the dehumidifier and the refrigerating unit according to the temperature and humidity values inside and outside the frequency conversion chamber detected by the temperature and humidity sensor 。
As shown in fig. 2 and 3, which are side and top views of the positions of the devices in the high-voltage frequency conversion chamber, outdoor temperature and humidity sensors are installed beside the air inlet fan and the air outlet fan, and indoor temperature and humidity controllers are distributed and installed in the frequency conversion chamber.
The air inlet fan and the air outlet fan are arranged in groups, the air inlet fan is arranged at the bottom of the frequency converter chamber, and the air outlet fan is arranged at the upper part of the frequency converter chamber 。
The audible and visual alarm is installed in an operation room on duty, and the alarm trigger comprises indoor high-temperature alarm, air inlet fan fault alarm, exhaust fan fault alarm, refrigeration equipment fault alarm and the like.
The exhaust fan, the air inlet fan and the refrigerator can automatically operate according to the indoor and outdoor temperature of the frequency converter and the set temperature of the PLC.
The input end of the PLC is connected with an outdoor temperature and humidity sensor, an indoor temperature and humidity sensor and operation fault signals of an exhaust fan, an air inlet fan and a refrigerating unit; the output end of the PLC controls the operation of the audible and visual alarm, the exhaust fan, the air inlet fan, the dehumidifier and the refrigerating unit.
For example, when the indoor temperature of the frequency converter room is 10 ℃ higher than the outdoor temperature, the PLC controls to start the air inlet fan and the air exhaust fan, and the outdoor temperature difference is utilized to cool the room;
when the indoor and outdoor temperature difference is less than 10 ℃, the air inlet fan and the air outlet fan are forbidden to operate; when the indoor temperature is 15-20 ℃, the first refrigerating unit operates, when the indoor temperature is 20-25 ℃, the first refrigerating unit and the second refrigerating unit operate, when the indoor temperature is 25-30 ℃, the first refrigerating unit, the second refrigerating unit and the third refrigerating unit operate, and when the indoor temperature is more than 30 ℃, the four refrigerating units operate simultaneously; when the indoor temperature is higher than 35 ℃, the sound and light alarm is given out.
When the outdoor humidity reaches 80%, the air inlet fan and the air outlet fan are forbidden to operate; when the indoor humidity reaches 70%, the dehumidifier operates, and when the indoor humidity is less than 40%, the dehumidifier stops operating.
When the air inlet fan, the air outlet fan, the refrigerator and the dehumidifier are in failure, a failure signal is transmitted to the PLC controller, and an alarm is started.
The air inlet fan, the air outlet fan, the refrigerating unit and the dehumidifier can be independently and manually started in the frequency converter chamber.
Each temperature and humidity set value can be adjusted according to the actual conditions of different sites, and the exhaust fan and the air inlet fan are of a one-way conduction type and have the functions of fire prevention and filtration.
The PLC controller of the utility model is S7-1500; ext> theext> modelext> ofext> theext> temperatureext> andext> humidityext> sensorext> isext> RSext> -ext> Iext> 05ext> -ext> SMGext> -ext> Aext>;ext> The model of the high-voltage frequency converter is an Anchuan FSdrive-MV1000-FA140; the model of the refrigerating unit is RF26W/SD-C (E5); the model of the dehumidifier is cymbidium CF3DA, and the model of the audible and visual alarm is GC-3009.
The PLC is connected with the fault display and informs an operator on duty through PC picture alarm and sound alarm of the operation console, and the WINCC picture of the operation console is provided with fault alarm pictures of various devices and parameter values of various sensors.
The utility model adjusts the working states of the exhaust fan, the intake fan and the refrigerating unit according to the indoor temperature and humidity data collected by the indoor and outdoor temperature and humidity sensors, achieves the effects of automatic control and power saving, and triggers the alarm when the indoor temperature exceeds a set value or the fan and the refrigerating equipment are in failure; through gathering the contrast to indoor outer temperature, usable fan cools down when outdoor temperature is lower, reduces the indoor temperature rise of control converter, reaches energy-conserving effect.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the description, and must be determined according to the scope of the claims.
Claims (7)
1. The utility model provides a high-pressure frequency conversion room temperature humidity control system which characterized in that: the refrigeration system comprises a PLC (programmable logic controller), a refrigeration unit, an indoor temperature and humidity sensor and an outdoor temperature and humidity sensor, wherein the refrigeration unit, the indoor temperature and humidity sensor and the outdoor temperature and humidity sensor are respectively and electrically connected with the PLC;
the indoor temperature and humidity sensor is used for detecting the temperature and the humidity in the variable frequency chamber;
the outdoor temperature and humidity sensor is used for detecting the temperature and the humidity of the frequency conversion outdoor environment;
the dehumidifier is used for reducing the humidity value in the variable frequency chamber;
the PLC controls the start and stop of the dehumidifier and the refrigerating unit according to the temperature and humidity values inside and outside the variable frequency chamber detected by the temperature and humidity sensor.
2. The high-voltage variable-frequency room temperature and humidity control system of claim 1, wherein: the high-voltage frequency converter is characterized by further comprising a high-voltage frequency converter, and when the high-voltage frequency converter works, the change of heat productivity causes the change of indoor temperature.
3. The high-voltage variable-frequency room temperature and humidity control system of claim 1, wherein: the air inlet fan and the exhaust fan are electrically connected with the PLC, and the PLC adjusts the power of the air inlet fan and the exhaust fan according to the detected indoor and outdoor temperature values of the frequency conversion chamber.
4. The high-voltage variable-frequency room temperature and humidity control system of claim 1, wherein: the refrigerating machine group is provided with four groups.
5. The high-voltage variable-frequency room temperature and humidity control system of claim 1, wherein: still include audible-visual annunciator, audible-visual annunciator and PLC controller electric connection trigger when frequency conversion indoor temperature, humidity are less than the PLC controller setting value and report an emergency and ask for help or increased vigilance.
6. The high-voltage variable-frequency room temperature and humidity control system of claim 1, wherein: the system also comprises a fault display, the fault display is electrically connected with the PLC, and working states of the variable frequency indoor and outdoor temperature and humidity parameters, the high frequency converter, the dehumidifier, the air inlet fan, the air outlet fan and the refrigerating unit are presented in real time through the fault display.
7. The high-voltage variable-frequency room temperature and humidity control system of claim 1, wherein: the model number of the PLC controller is S7-1500.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222983817.8U CN218601728U (en) | 2022-11-09 | 2022-11-09 | High-voltage variable-frequency room temperature and humidity control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222983817.8U CN218601728U (en) | 2022-11-09 | 2022-11-09 | High-voltage variable-frequency room temperature and humidity control system |
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| Publication Number | Publication Date |
|---|---|
| CN218601728U true CN218601728U (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222983817.8U Active CN218601728U (en) | 2022-11-09 | 2022-11-09 | High-voltage variable-frequency room temperature and humidity control system |
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| Country | Link |
|---|---|
| CN (1) | CN218601728U (en) |
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2022
- 2022-11-09 CN CN202222983817.8U patent/CN218601728U/en active Active
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