CN104456858A - Condensate fan control device of annual refrigerating set - Google Patents
Condensate fan control device of annual refrigerating set Download PDFInfo
- Publication number
- CN104456858A CN104456858A CN201310413007.1A CN201310413007A CN104456858A CN 104456858 A CN104456858 A CN 104456858A CN 201310413007 A CN201310413007 A CN 201310413007A CN 104456858 A CN104456858 A CN 104456858A
- Authority
- CN
- China
- Prior art keywords
- pressure controller
- condensation fan
- fan
- condensate
- condensate fan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—Arrangement or mounting of control or safety devices
Abstract
The invention discloses a condensate fan control device of an annual refrigerating set, and relates to the technical field of air conditioners. The device comprises two sets of independent refrigerating systems, a condensate fan 1 and a condensate fan 2. The device is characterized in that a pipeline of an exhaust pipe of a compressor 1 of the refrigerating system 1 is in parallel connection with a pressure controller 2 and a pressure controller 3, in a normally open state, for controlling the condensate fan 1 and the condensate fan 2 respectively; and a pipeline of an exhaust pipe of a compressor 2 of the refrigerating system 2 is in parallel connection with a pressure controller 1 and a pressure controller 4, in a normally open state, for controlling the condensate fan 1 and the condensate fan 2 respectively. Power failure delay time relays are arranged on control pipelines at the front ends of the condensate fan 1 and the condensate fan 2 respectively. Compared with the prior art, the device uses the electronic power failure delay time relays and high-voltage pressure controllers for controlling the condensate fans to improve the set operation stability and reliability.
Description
Technical field
The present invention relates to air-conditioning technical field, the condensation fan control device be particularly used in the air-source module unit of year round cooling.
Background technology
In prior art, normally adopt the dual pressure controller connecting two normally opens on the compressor air-discharging pipeline of air-conditioner set refrigeration system to control condensation fan.Adopt the shortcoming of this control method to be: when outdoor environment temperature is lower, because condensation effect is very good, blower fan just starts, and condensing pressure is then dropped rapidly to cut off value (setting value-return difference value), pressure controller disconnects, and blower fan is stopped.Condensing pressure gos up rapidly again, and pressure controller is connected, even if pressure controller return difference tuned up, also there will be the frequent on-off of pressure controller, the problem of blower fan frequent start-stop, about 3 ~ 4 seconds its interval times.The such frequent starting of pressure controller, can cause the drift of pressure controller set point in the course of time, thus the return difference value of setting is inoperative, and blower fan start and stop are more frequent, and the time almost do not cushioned, contactor also acts frequently, thus burns out.
Summary of the invention
For the deficiency that above-mentioned prior art exists, the invention provides a kind of control device of year round cooling unit condensation fan.It is controlled condensation fan jointly by the power cut off delay time relay of electronic type and high-pressure controller, improves the reliability and stability of unit operation.
In order to reach foregoing invention object, technical scheme of the present invention realizes as follows:
A control device for year round cooling unit condensation fan, it comprises two and overlaps independently refrigeration system and condensation fan one and condensation fan two.Its design feature is, the pressure controller two and the pressure controller three that the pipeline of compressor one blast pipe of described refrigeration system one are connected in parallel two normally opens control condensation fan one and condensation fan two respectively, and the pressure controller one and the pressure controller four that the pipeline of compressor two blast pipe of refrigeration system two are connected in parallel two normally opens control condensation fan one and condensation fan two respectively.The control pipeline of condensation fan one and condensation fan two front end is respectively equipped with the power cut off delay time relay.
The present invention is owing to have employed said structure, and under the effect of the power cut off delay time relay, the phenomenon of the frequent start-stop of condensation fan is eased.Use the present invention, effectively can improve the reliability and stability of unit operation.Even if when unit runs when outdoor environment temperature is lower, condensing pressure also can not be caused to fluctuate excessive, the security and stability that impact runs.
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Referring to Fig. 1, the present invention includes two and overlap independently refrigeration system and condensation fan 1 and condensation fan 26.The pressure controller 22 and the pressure controller 33 that the pipeline of compressor one blast pipe of refrigeration system one are connected in parallel two normally opens control condensation fan 1 and condensation fan 26 respectively, and the pressure controller 1 and the pressure controller 44 that the pipeline of compressor two blast pipe of refrigeration system two are connected in parallel two normally opens control condensation fan 1 and condensation fan 26 respectively.The control pipeline of condensation fan 1 and condensation fan 26 front end is respectively equipped with the power cut off delay time relay 7.
When the present invention works:
1) when any a certain refrigeration system condensing pressure is more than 1.5MPa, condensation fan 26 connected by pressure controller 33 or pressure controller 44.Because environment temperature is lower, condensation effect is good, and condensation fan 26 just starts, and high-pressure value is reduced to rapidly 1.2MPa(return difference value and is set to 0.3MPa), now pressure controller disconnects, but condensation fan 26 time delay under the time-lag action of the power cut off delay time relay 7 disconnects.Time delay process mesohigh can continue to decline, and can set applicable delay time to ensure that unit high-pressure is unlikely to too low.After time delay, condensation fan 26 contactor disconnects, and pressure starts to rise, and when rising to the setting value of pressure controller, condensation fan 26 restarts, and so circulates.
Same as above, for condensation fan 1, when any a certain refrigeration system condensing pressure is more than 1.9MPa, condensation fan 1 connected by pressure controller 1 or pressure controller 22, and now two Fans are all opened.Because environment temperature is lower, condensation effect is good, and condensation fan 1 just starts, and high-pressure value is reduced to rapidly 1.6MPa(return difference value and is set to 0.3MPa), now pressure controller disconnects, but condensation fan 1 time delay under the time-lag action of the power cut off delay time relay 7 disconnects.
Claims (1)
1. the control device of a year round cooling unit condensation fan, it comprises two and overlaps independently refrigeration system and condensation fan one (5) and condensation fan two (6), it is characterized in that, the pressure controller two (2) and the pressure controller three (3) that the pipeline of compressor one blast pipe of described refrigeration system one are connected in parallel two normally opens control condensation fan one (5) and condensation fan two (6) respectively, the pressure controller one (1) and the pressure controller four (4) that the pipeline of compressor two blast pipe of refrigeration system two are connected in parallel two normally opens control condensation fan one (5) and condensation fan two (6) respectively, the control pipeline of condensation fan one (5) and condensation fan two (6) front end is respectively equipped with the power cut off delay time relay (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310413007.1A CN104456858A (en) | 2013-09-12 | 2013-09-12 | Condensate fan control device of annual refrigerating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310413007.1A CN104456858A (en) | 2013-09-12 | 2013-09-12 | Condensate fan control device of annual refrigerating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104456858A true CN104456858A (en) | 2015-03-25 |
Family
ID=52903325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310413007.1A Pending CN104456858A (en) | 2013-09-12 | 2013-09-12 | Condensate fan control device of annual refrigerating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104456858A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924487A (en) * | 2005-08-29 | 2007-03-07 | 海尔集团公司 | Energy-saving air conditioner and energy-saving method thereof |
| WO2009049390A1 (en) * | 2007-10-16 | 2009-04-23 | Francisco Maria Ayala Barreto | Equipment upgrade for artificial cooling of grains and seeds |
| CN101469903A (en) * | 2007-12-27 | 2009-07-01 | 同方人工环境有限公司 | Condensation fan control method for year round cooling air source heat pump units |
| CN201526483U (en) * | 2009-10-22 | 2010-07-14 | 同济大学 | Variable speed control system for condensate fan |
| CN203550126U (en) * | 2013-09-12 | 2014-04-16 | 同方人工环境有限公司 | Control device of condensation fan in year-round refrigerating unit |
-
2013
- 2013-09-12 CN CN201310413007.1A patent/CN104456858A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1924487A (en) * | 2005-08-29 | 2007-03-07 | 海尔集团公司 | Energy-saving air conditioner and energy-saving method thereof |
| WO2009049390A1 (en) * | 2007-10-16 | 2009-04-23 | Francisco Maria Ayala Barreto | Equipment upgrade for artificial cooling of grains and seeds |
| CN101469903A (en) * | 2007-12-27 | 2009-07-01 | 同方人工环境有限公司 | Condensation fan control method for year round cooling air source heat pump units |
| CN201526483U (en) * | 2009-10-22 | 2010-07-14 | 同济大学 | Variable speed control system for condensate fan |
| CN203550126U (en) * | 2013-09-12 | 2014-04-16 | 同方人工环境有限公司 | Control device of condensation fan in year-round refrigerating unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |
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| WD01 | Invention patent application deemed withdrawn after publication |