CN219693533U - Device for adjusting air quantity of airborne evaporation circulation refrigerating system according to temperature - Google Patents
Device for adjusting air quantity of airborne evaporation circulation refrigerating system according to temperature Download PDFInfo
- Publication number
- CN219693533U CN219693533U CN202320153738.6U CN202320153738U CN219693533U CN 219693533 U CN219693533 U CN 219693533U CN 202320153738 U CN202320153738 U CN 202320153738U CN 219693533 U CN219693533 U CN 219693533U
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- resistor
- comparator
- condensing fan
- triode
- temperature sensor
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- 238000001704 evaporation Methods 0.000 title claims abstract description 17
- 230000008020 evaporation Effects 0.000 title claims abstract description 16
- 238000005057 refrigeration Methods 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009434 installation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
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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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- Air Conditioning Control Device (AREA)
Abstract
The utility model provides a device for automatically adjusting the air quantity of a condensing fan according to the ambient temperature in an evaporation circulation refrigeration system. An air quantity adjusting device of an airborne evaporation circulation refrigerating system according to temperature comprises an outdoor temperature sensor and a condensing fan, wherein the outdoor temperature sensor and the condensing fan are arranged on a condenser assembly; the device also comprises a voltage adjusting circuit and a comparison circuit which are connected in sequence. The utility model uses the change of the external environment temperature and uses the comparison circuit to adjust the change of the air quantity of the outdoor condensing fan by adjusting the translation parameter and the change parameter of the resistor in the circuit. The problems of excessive heat exchange and insufficient heat exchange of the helicopter-mounted refrigerating system are effectively solved, the heat exchange quantity of the condensing side is effectively controlled on the premise of not increasing the installation volume and the weight of the installed body, the influence on the refrigerating system caused by the change of the external environment temperature is reduced, and the using effect of the refrigerating system is improved.
Description
Technical Field
The utility model provides a device for automatically adjusting the air quantity of a condensing fan according to the ambient temperature in an evaporation circulation refrigeration system.
Background
At present, after the external environment temperature changes, the air quantity of a condensing fan of an evaporation circulation refrigeration system on a helicopter cannot be adjusted, and when the external environment temperature drops, the condensing side of the evaporation circulation refrigeration system can exchange heat excessively, so that the surface of a heat exchanger on the evaporating side of the refrigeration system is frosted and then is stopped for protection; when the external temperature rises, the heat exchange of the condensation side of the evaporation circulation refrigerating system is insufficient, so that the refrigerating effect of the refrigerating system is reduced, and the comfort level is affected.
Disclosure of Invention
The utility model aims to solve the problems, and provides a device capable of automatically adjusting the air quantity of a condensing fan according to the rising or falling of the external environment when an evaporation circulation refrigerating system works, so as to avoid the reduction of the refrigerating effect caused by frosting on the surface of an evaporator or insufficient heat exchange on the condensing side due to excessive heat exchange of the condensing fan.
The technical scheme of the utility model is as follows:
an air quantity adjusting device of an airborne evaporation circulation refrigerating system according to temperature comprises an outdoor temperature sensor and a condensing fan, wherein the outdoor temperature sensor and the condensing fan are arranged on a condenser assembly; the method is characterized in that: the device also comprises a voltage adjusting circuit and a comparison circuit which are connected in sequence;
the voltage regulating circuit comprises a resistor R1, a resistor R2 and a resistor R3 which are sequentially connected in series; the device further comprises a resistor R5 and a translation resistor RP1 which are respectively connected with the resistor R3 in series, wherein the resistor R2 and the resistor R3 are also connected with a resistor R4 in parallel, and the translation resistor RP1 is also connected with a resistor R6 in parallel; the outdoor temperature sensor is also connected between the resistor R1 and the resistor R2;
the comparison circuit comprises a comparator U1, a resistor R8 and a triode Q1 which are connected in sequence;
the comparator also comprises a comparing resistor RP2 and a resistor R10 which are arranged in parallel, wherein the front ends of the comparing resistor RP2 and the resistor R10 are respectively connected to the resistor R5 and the input positive end of the comparator U1, the rear ends of the comparing resistor RP2 and the resistor R10 are connected in series with a resistor R7, the other end of the resistor R7 is connected to the power end of the comparator U1, and the other end of the comparator U1 is connected to the ground; the negative input end of the comparator U1 is connected between the resistor R2 and the resistor R3, one end of the resistor R8 is connected to the output end of the comparator U1, and the other end of the resistor R8 is connected to the base electrode of the triode Q1;
the collector of the triode Q1 is respectively connected to an outdoor temperature sensor and a condensing fan through a diode D1, the emitter of the triode Q1 is grounded, the triode also comprises a resistor R9, one end of the resistor R9 is connected between the output end of the comparator U1 and the resistor R8, and the other end of the resistor R9 is connected to the emitter of the triode Q1; the emitter of transistor Q1 is also connected to a condensing fan.
Preferably, the current limiting resistor R11 is further included, and the current limiting resistor R3 and the diode D1 are sequentially connected in series; the series connection of the adjusting resistor R3 and the diode D1 is connected with the current limiting resistor R11 in parallel, one end of the current limiting resistor R11 is connected to the outdoor temperature sensor, and the other end is connected to the condensing fan.
The utility model has the technical effects that:
the utility model uses the change of the external environment temperature and uses the comparison circuit to adjust the change of the air quantity of the outdoor condensing fan by adjusting the translation parameter and the change parameter of the resistor in the circuit. The problems of excessive heat exchange and insufficient heat exchange of the helicopter-mounted refrigerating system are effectively solved, the heat exchange quantity of the condensing side is effectively controlled on the premise of not increasing the installation volume and the weight of the installed body, the influence on the refrigerating system caused by the change of the external environment temperature is reduced, and the using effect of the refrigerating system is improved.
Drawings
Fig. 1 is a connection diagram of a device for adjusting air quantity according to temperature in an airborne evaporation circulation refrigeration system.
Detailed Description
An air quantity adjusting device of an airborne evaporation circulation refrigerating system according to temperature comprises an outdoor temperature sensor and a condensing fan, wherein the outdoor temperature sensor and the condensing fan are arranged on a condenser assembly; the method is characterized in that: the device also comprises a voltage adjusting circuit and a comparison circuit which are connected in sequence;
the voltage regulating circuit comprises a resistor R1, a resistor R2 and a resistor R3 which are sequentially connected in series; the device further comprises a resistor R5 and a translation resistor RP1 which are respectively connected with the resistor R3 in series, wherein the resistor R2 and the resistor R3 are also connected with a resistor R4 in parallel, and the translation resistor RP1 is also connected with a resistor R6 in parallel; the outdoor temperature sensor is also connected between the resistor R1 and the resistor R2;
adjusting the resistance value of the translation resistor RP1 can change the voltage of the negative input terminal of the comparator U1;
the comparison circuit comprises a comparator U1, a resistor R8 and a triode Q1 which are connected in sequence;
the comparator also comprises a comparing resistor RP2 and a resistor R10 which are arranged in parallel, wherein the front ends of the comparing resistor RP2 and the resistor R10 are respectively connected to the resistor R5 and the input positive end of the comparator U1, the rear ends of the comparing resistor RP2 and the resistor R10 are connected in series with a resistor R7, the other end of the resistor R7 is connected to the power end of the comparator U1, and the other end of the comparator U1 is grounded; the negative input end of the comparator U1 is connected between the resistor R2 and the resistor R3, one end of the resistor R8 is connected to the output end of the comparator U1, and the other end of the resistor R8 is connected to the base electrode of the triode Q1;
the collector of the triode Q1 is respectively connected to an outdoor temperature sensor and a condensing fan through a diode D1, the emitter of the triode Q1 is grounded, the triode also comprises a resistor R9, one end of the resistor R9 is connected between the output end of the comparator U1 and the resistor R8, and the other end of the resistor R9 is connected to the emitter of the triode Q1; the emitter of transistor Q1 is also connected to a condensing fan.
The specific implementation process of the embodiment is as follows:
when the outdoor temperature collected by the outdoor temperature sensor changes, the resistance values of the translation resistor RP1 and the comparison resistor RP2 are adjusted between 0K and 10K, the voltage of the input negative end and the voltage of the input positive end of the comparator U1 change, and the translation resistor RP1 and the comparison resistor RP2 are adjusted to a proper range, so that the voltage change of the output end of the comparator U1 is influenced, the output state of the triode Q1 is influenced, and the running state of the condensing fan is further influenced.
When the temperature acquired by the outdoor temperature sensor is smaller than a certain fixed value, the resistance value of the translation resistor RP1 is adjusted to a certain specified parameter value, the parameter of the RP1 is adjusted between 4.5K and 5K, the input positive end and the input negative end of the comparator U1 are adjusted by adjusting the resistance value of the comparison resistor RP2, the voltage of the output end of the comparator U1 is further controlled, the voltage of the output end of the comparator U1 can influence whether the triode Q1 can be normally conducted or not, and therefore the running state of the condensing fan of the control room is realized.
When the temperature acquired by the outdoor temperature sensor is greater than a certain fixed value, the resistance value of the translation resistor RP1 is adjusted to a certain specified parameter value, the parameter of the RP1 is adjusted between 4.5K and 5K, the voltage of the positive input end and the voltage of the negative input end of the comparator U1 are adjusted by adjusting the resistance value of the comparison resistor RP2, the voltage of the output end of the comparator U1 is further controlled, the voltage of the output end of the comparator U1 can influence whether the triode Q1 can be normally conducted or not, and therefore the running state of the condensing fan of the control room is realized.
Examples
On the basis of the embodiment 1, the method further comprises the following steps:
preferably, the current limiting resistor R11 is further included, and the current limiting resistor R3 and the diode D1 are sequentially connected in series; the series-connected adjusting resistor RP3 and diode D1 are connected in parallel with the current limiting resistor R11, one end of the current limiting resistor R11 is connected to the outdoor temperature sensor, and the other end is connected to the condensing fan.
The specific implementation process of the embodiment is as follows:
when the temperature collected by the outdoor temperature sensor changes, the resistance value of the resistor RP3 is adjusted, the speed regulating voltage of the condensing fan changes, the diode D1 can stabilize the output speed regulating voltage within a certain range, for example, the voltage is stabilized between 0 and 7V, the change of the speed regulating voltage of the condensing fan caused by the severe change of the outdoor temperature is avoided, and the rotating speed of the condensing fan can be adjusted.
According to the change of the outdoor temperature, parameters of the translation resistor RP1 and parameters of the comparison resistor RP2 are adjusted, the parameter adjustment ranges of the translation resistor RP1 and the comparison resistor RP2 are 0-5K, the input level of the comparator U1 changes to cause the level change of the output end of the comparator U1, and the running state of the condensing fan is controlled, so that the heat exchange amount of the condensing fan is adjusted.
The utility model has simple and reliable principle, and on the premise of not increasing the installed volume and not integrally changing the control circuit, the outdoor temperature acquired by the sensor is used together with the comparison circuit, so that the rotating speed of the condensing fan is controlled, and the condensing side heat exchange effect of the refrigerating system is improved.
The utility model is applied to the J/CZZ-8C evaporation circulation refrigerating system assembled with a certain helicopter, has good use effect, and effectively reduces the frequent frosting of the system or the decline of the refrigerating effect due to insufficient heat exchange caused by excessive heat exchange in the working process of the evaporation circulation refrigerating system due to the change of the outdoor environment temperature, thereby influencing the working performance of the system.
Claims (2)
1. An air quantity adjusting device of an airborne evaporation circulation refrigerating system according to temperature comprises an outdoor temperature sensor and a condensing fan, wherein the outdoor temperature sensor and the condensing fan are arranged on a condenser assembly; the method is characterized in that: the device also comprises a voltage adjusting circuit and a comparison circuit which are connected in sequence;
the voltage regulating circuit comprises a resistor R1, a resistor R2 and a resistor R3 which are sequentially connected in series; the device further comprises a resistor R5 and a translation resistor RP1 which are respectively connected with the resistor R3 in series, wherein the resistor R2 and the resistor R3 are also connected with a resistor R4 in parallel, and the translation resistor RP1 is also connected with a resistor R6 in parallel; the outdoor temperature sensor is also connected between the resistor R1 and the resistor R2;
the comparison circuit comprises a comparator U1, a resistor R8 and a triode Q1 which are connected in sequence;
the device further comprises a comparing resistor RP2 and a resistor R10 which are arranged in parallel, wherein the front ends of the comparing resistor RP2 and the resistor R10 are respectively connected to the resistor R5 and the input positive end of the comparator U1, the rear ends of the comparing resistor RP2 and the resistor R10 are connected in series with a resistor R7, the other end of the resistor R7 is connected to the power end of the comparator U1, and the other end of the comparator U1 is connected to the ground; the negative input end of the comparator U1 is connected between the resistor R2 and the resistor R3, one end of the resistor R8 is connected to the output end of the comparator U1, and the other end of the resistor R8 is connected to the base electrode of the triode Q1;
the collector of the triode Q1 is respectively connected to an outdoor temperature sensor and a condensing fan through a diode D1, the emitter of the triode Q1 is grounded, the triode also comprises a resistor R9, one end of the resistor R9 is connected between the output end of the comparator U1 and the resistor R8, and the other end of the resistor R9 is connected to the emitter of the triode Q1; the emitter of transistor Q1 is also connected to a condensing fan.
2. The apparatus for adjusting air quantity according to temperature of an on-board evaporation circulation refrigeration system according to claim 1, wherein: the current limiting resistor R11 is further included, and the current limiting resistor R3 and the diode D1 are sequentially connected in series; the series-connected adjusting resistor R3 and diode D1 are connected in parallel with the current limiting resistor R11, one end of the current limiting resistor R11 is connected to the outdoor temperature sensor, and the other end is connected to the condensing fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153738.6U CN219693533U (en) | 2023-02-08 | 2023-02-08 | Device for adjusting air quantity of airborne evaporation circulation refrigerating system according to temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320153738.6U CN219693533U (en) | 2023-02-08 | 2023-02-08 | Device for adjusting air quantity of airborne evaporation circulation refrigerating system according to temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219693533U true CN219693533U (en) | 2023-09-15 |
Family
ID=87970019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320153738.6U Active CN219693533U (en) | 2023-02-08 | 2023-02-08 | Device for adjusting air quantity of airborne evaporation circulation refrigerating system according to temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219693533U (en) |
-
2023
- 2023-02-08 CN CN202320153738.6U patent/CN219693533U/en active Active
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