CN1405520A - Process for removing water or steam for general family-type central air conditioning system pipeline and its control system - Google Patents
Process for removing water or steam for general family-type central air conditioning system pipeline and its control system Download PDFInfo
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- CN1405520A CN1405520A CN 02145020 CN02145020A CN1405520A CN 1405520 A CN1405520 A CN 1405520A CN 02145020 CN02145020 CN 02145020 CN 02145020 A CN02145020 A CN 02145020A CN 1405520 A CN1405520 A CN 1405520A
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Abstract
This invention discloses a clean-up technique for pipes, water and gas of central air conditioning system of general household type and its control system which applies the method of line-up according to the length of pipes then to set nitrogen charging time, setting shortest pipe time such as five seconds as the primary standard to assign the time with refrigerant automatically according to the proportion of time/length to the branch pipes of each indoor machine to circulate in this way till finishing the charging. The invented automatic controly system is composed of several control circuit boards and a handheld controller, the control circuit boards include an interface, a central processor, a driving module and an electronic expansion valve and the handheld controller contains an interface, a central processor, a liquid crystal driving module and a liquid crystal display.
Description
Technical field
The present invention relates to removing technology and automatic control systems such as a kind of universal residential central air-system pipeline aqueous vapor.
Background technology
Both at home and abroad in universal residential central air-installation specification, requirement vacuumizes the fluorine circulating line in the central air conditioner system, and pipeline is long more, and desired vacuum is high more, its objective is and remove gas (material), particularly aqueous vapor that has nothing to do with refrigerant in the pipeline.This process operations complexity, and process is time-consuming, the effort, the power consumption, the expense height, especially the length thickness of the job site actual conditions of each air-conditioning and laying pipeline is inequality, make the technical merit and the sense of responsibility finished with the concrete operations personnel of this operation that direct relevance be arranged, operational quality is subject to objective and artificial factor influence, thereby influence universal residential central air-system installation quality, influence the construction quality of universal residential central air-system, make refrigeration (heat) amount of universal residential central air-system in actual motion not reach specified requirement.
Summary of the invention
The objective of the invention is to: removing technology and automatic control systems such as a kind of universal residential central air-system pipeline aqueous vapor are provided, can remove evacuation process from during installation, vacuumize operation with new technology generations for tradition, the gas that has nothing to do with refrigerant in the air-conditioning fluorine circulating line is got rid of in control automatically.
Technology of the present invention is: drive out of from pipeline with the nitrogen that refrigerant will be reduced to behind the normal pressure.Because universal residential central air-hangs with many indoor sets in a kind of pipe-line system, be difficult to completely ducted nitrogen be dashed to the greatest extent if simply handle towards nitrogen with refrigerant.The present invention adopts (1) to press the length ordering of pipeline, and the subpunch long tube is again towards short tube; (2) according to the length difference of pipeline, with short tube with setting-up time as be 5 seconds benchmark towards the nitrogen time, automatically according to time/length ratio distribute each branch line of each indoor set with refrigerant towards the nitrogen time, so circulation; System is according to the pressure towards the nitrogen matchmaker, and each duct length, caliber calculated automatically towards nitrogen total time, met the standard of zero tolerance.
Automatic control system of the present invention is made up of some control circuit boards and handheld controller, and control circuit board is made of interface, central processing unit, driver module, electric expansion valve.Handheld controller: constitute by interface, central processing unit, liquid crystal driver module, LCD.In the control circuit board interface be responsible for handheld controller in interface carry out data communication, and data are sent in the control circuit board central processing unit handle.After the control circuit board central processing unit was handled communication data, the driving signal that is converted into electric expansion valve was exported to driver module, drove the action that electric expansion valve is finished unlatching, closed.The central processing unit of handheld controller receives the instruction and the input parameter of keyboard, data are handled the rear drive Liquid Crystal Module, be presented on the LCD, and the control information of indoor set is sent to the control circuit plate interface, the interface of handheld controller interface and control circuit board carries out data communication, finishes the order of control indoor set.
Characteristics of the present invention
1, simple to operate, convenient
Tradition vacuumizes the operational sequence complexity of mode, and the technical merit of installation personnel is had relatively high expectations, and control section of the present invention is finished automatically by controller, need not operating personnel possess professional air-conditioning knowledge.
2, economical reliable, save time
Tradition vacuumizes mode erecting tools many (as vavuum pumps etc.), and volume is bigger, moves inconvenience, the time that vacuumizes long (1～2 hour).After adopting this technology, save erecting tools such as vavuum pump, and the time also foreshortens to a few minutes.
Description of drawings
Fig. 1 constitutes block diagram for the present invention;
Fig. 2 is a handheld controller circuit diagram of the present invention;
Fig. 3 is a control circuit board circuit diagram of the present invention.
The specific embodiment
Of the present inventionly be: 1, the refrigerant conduit is connected and air-conditioning duct refrigerant porch towards the nitrogen technological process; 2, each indoor set lateral length, common conduit length are input in the handheld controller successively according to address of indoor unit.3, open system and indoor set power supply; 4, handheld controller sends the instruction of closing electric expansion valve by sequence of addresses to every indoor set; 5, after each indoor set receives the instruction of closing electric expansion valve, the electric expansion valve of this indoor set is closed; 6, open the valve of refrigerant fluid reservoir, make refrigerant flow in the refrigerant pipe of air-conditioning system from entrance; 7, in handheld controller, select, and press acknowledgement key, begin towards nitrogen towards the nitrogen item.At this moment, handheld controller will be automatically sorts according to the duct length of each indoor set, and the longest indoor set of pipeline at first begins towards nitrogen, the backlash nitrogen of the shortest indoor set of pipeline.Handheld controller calculates dashing the nitrogen time of every indoor set automatically according to pipe parameter; 8, handheld controller sends instruction, orders first indoor set to begin towards nitrogen, and with the central processing unit that the nitrogen time parameter sends to indoor set that dashes of this indoor set.9, after the reception instruction, indoor set opens electric expansion valve to maximum, begins towards nitrogen.This moment, refrigerant was flow in the lateral of this indoor set by common conduit, and with outside the material discharge pipes such as moisture content and nitrogen, the opening time of electric expansion valve equaled towards the nitrogen time.After the nitrogen end, indoor set is closed the electric expansion valve of this machine automatically.10, after first indoor set finished towards nitrogen, handheld controller sent instruction, orders next indoor set to begin towards nitrogen, and so circulation finishes towards nitrogen until every indoor set.11, the refrigerant conduit is taken off from air-conditioning duct, and close the valve of porch.12, finish towards nitrogen.
Automatic control system of the present invention is made up of handheld controller and the control circuit board on each indoor set that is installed in the universal household air conditioning system, handheld controller is made up of interface 1, central processing unit IC1, button SW1-SW13, liquid crystal driver module IC2, LCDs LCD and other Resistor-Capacitor Unit, and control circuit board is made up of interface 2, central processing unit IC3, driver module IC4 and other Resistor-Capacitor Unit; Central processing unit IC1 pin 21 meets SW1 after meeting SW12 successively, SW5, SW9 one end, and with central processing unit IC1 pin 25, SW10, the public termination central processing unit IC1 pin 22 of SW11, central processing unit IC1 pin 26 meets SW2, SW6, SW10 one end, pin 27 meets SW3, SW7, SW11 one end, pin 28 connects SW4 one end, SW5, SW6, the public termination central processing unit IC1 pin 23 of SW7, SW1, SW2, SW3, the public termination central processing unit IC1 pin 24 of SW4, central processing unit IC1 pin 14,16,17 connect liquid crystal driver module IC2 pin 9 respectively, 11,12, IC2 control signal output pin 1, connect the choosing of LCDs LCD sheet and drive input pin 6, pin 2 connects power supply negative terminal with LCDs LCD pin 5, the output of IC2 driving signal is delivered to LCDs LCD input port through data/address bus pin 21-48 and shows, crystal oscillator X1 and capacitor C 2, the cross-over connection of C3 parallel branch is in central processing unit IC1 pin 9,10, central processing unit IC1 pin 15, pin 18,26 respectively through light emitting diode D1 and R15, R20, join behind the R21, power positive end is connected to central processing unit IC1 pin 1 through resistance R 1, and interface 1 connects central processing unit IC1 pin 7; Central processing unit IC3 pin 33PA0 mouth connection interface 2, central processing unit IC3PA1-PA7 mouth run in respectively and hinder RA1, driver module IC4 pin 1-7, and IC4, pin 11-14 meet electric expansion valve drive motors M, and 2 interfaces 1 and interfaces carry out transfer of data.2 interfaces 1 and interfaces adopt wireless communication mode.Interface 1 is an infrared transmitter, interface 2 is an infrared remote receiver, interface 1 is made up of infrared transmitting tube RM1, capacitor C 4, resistance R 11, R27, and capacitor C 4 cross-over connections are between resistance R 11 1 ends and power positive end, and resistance R 11, R27 common port connect central processing unit IC1 pin 7 through resistance R 8.Interface 2 is identical with interface 1 structure.
Control circuit board on each indoor set can with former universal household air conditioning indoor set circuit board making in one, handheld controller and the communication that is installed between the control circuit on each indoor set can wired or wireless mode be carried out, and also can be undertaken by the communication channel of former universal household air conditioning system.
Claims (5)
1, a kind of universal residential central air-system pipeline aqueous vapor etc. is removed technology; Its technological process is: (1.1) connect the refrigerant conduit and air-conditioning duct refrigerant porch; (1.2) successively be input to handheld controller in according to address of indoor unit each indoor set lateral length, common conduit length; (1.3) open system and indoor set power supply; (1.4) handheld controller sends the instruction of closing electric expansion valve by sequence of addresses to every indoor set; (1.5) after each indoor set receives the instruction of closing electric expansion valve, the electric expansion valve of this indoor set is closed; (1.6) valve of unlatching refrigerant fluid reservoir makes refrigerant flow in the refrigerant pipe of air-conditioning system from entrance; (1.7) in handheld controller, select, and press acknowledgement key, begin towards nitrogen towards the nitrogen item.At this moment, handheld controller will be automatically sorts according to the duct length of each indoor set, and the longest indoor set of pipeline at first begins towards nitrogen, the backlash nitrogen of the shortest indoor set of pipeline.Handheld controller calculates dashing the nitrogen time of every indoor set automatically according to pipe parameter; (1.9) handheld controller sends instruction, orders first indoor set to begin towards nitrogen, and with the central processing unit that the nitrogen time parameter sends to indoor set that dashes of this indoor set; (1.10) after the reception instruction, indoor set opens electric expansion valve to maximum, begins towards nitrogen.This moment, refrigerant was flow in the lateral of this indoor set by common conduit, and with outside the material discharge pipes such as moisture content and nitrogen, the opening time of electric expansion valve equaled towards the nitrogen time.After the nitrogen end, indoor set is closed the electric expansion valve of this machine automatically; After (1.11) first indoor sets finished towards nitrogen, handheld controller sent instruction, orders next indoor set to begin towards nitrogen, and so circulation finishes towards nitrogen until every indoor set; (1.12) the refrigerant conduit is taken off from air-conditioning duct, and close the valve of porch; (1.12) finish towards nitrogen.
2, a kind of universal residential central air-system installs and exempts from the evacuation process automatic control system, it is characterized in that: form by handheld controller and the control circuit board on each indoor set that is installed in the universal household air conditioning system, handheld controller is made up of interface (1), central processing unit (IC1), button (SW1-SW13), liquid crystal driver module (IC2), LCDs (LCD) and other Resistor-Capacitor Unit, and control circuit board is made up of interface (2), central processing unit (IC3), driver module (IC4) and other Resistor-Capacitor Unit; After meeting (SW12), central processing unit (IC1) pin 21 meets (SW1 successively, SW5, SW9) end, and with central processing unit (IC1) pin 25, (SW10, SW11) public termination central processing unit (IC1) pin 22, central processing unit (IC1) pin 26 meets (SW2, SW6, SW10) end, pin 27 meets (SW3, SW7, SW11) end, pin 28 connects (SW4) end, (SW5, SW6, SW7) public termination central processing unit (IC1) pin 23, (SW1, SW2, SW3, SW4) public termination central processing unit (IC1) pin 24, central processing unit (IC1) pin 14,16,17 connect liquid crystal driver module (IC2) pin 9 respectively, 11,12, (IC2) the control signal output pin 1, connect the choosing of LCDs (LCD) sheet and drive input pin 6, pin 2 connects power supply negative terminal with LCDs (LCD) pin 5, (IC2) driving signal output is delivered to LCDs (LCD) input port through data/address bus pin 21-48 and shows, crystal oscillator (X1) and electric capacity (C2, C3) the parallel branch cross-over connection is in central processing unit (IC1) pin 9,10, central processing unit (IC1) pin 15, pin 18,26 respectively through light emitting diode (D1) and (R15, R20, R21) join after, power positive end is connected to central processing unit (IC1) pin 1 through resistance (R1), and interface (1) connects central processing unit (IC1) pin 7; Central processing unit (IC3) pin 33PA0 mouth connection interface (2), the resistance (RA1) of running in respectively of central processing unit (IC3) PA1-PA7 mouth, driver module (IC4) pin 1-7, (IC4) pin 11-14 connects electric expansion valve drive motors (M), carries out transfer of data between interface (1) and interface (2).
3, universal residential central air-according to claim 2 system installs and exempts from the evacuation process automatic control system, it is characterized in that: interface (1) is an infrared transmitter, interface (2) is an infrared remote receiver, interface (1) is made up of infrared tube (RM1), electric capacity (C4), resistance (R11, R27), electric capacity (C4) cross-over connection is between resistance (R11) end and power positive end, resistance (R11, R27) common port connects central processing unit (IC1) pin 7 through resistance (R8), and interface (2) is identical with interface (1) structure.
4, install according to claim 2 or 3 described universal residential central air-systems and exempt from the evacuation process automatic control system, it is characterized in that: interface (1) is connected with direct plugging mode with interface (2).
5, install according to claim 2 or 3 described universal residential central air-systems and exempt from the evacuation process automatic control system, it is characterized in that: handheld controller and air-conditioning remote control form as one, and control circuit board is installed in the universal household air conditioning system on each indoor set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145020 CN1405520A (en) | 2002-11-02 | 2002-11-02 | Process for removing water or steam for general family-type central air conditioning system pipeline and its control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02145020 CN1405520A (en) | 2002-11-02 | 2002-11-02 | Process for removing water or steam for general family-type central air conditioning system pipeline and its control system |
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| CN1405520A true CN1405520A (en) | 2003-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02145020 Pending CN1405520A (en) | 2002-11-02 | 2002-11-02 | Process for removing water or steam for general family-type central air conditioning system pipeline and its control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123244A (en) * | 2016-08-08 | 2016-11-16 | 珠海格力电器股份有限公司 | Drainage control method and device of air conditioning system |
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2002
- 2002-11-02 CN CN 02145020 patent/CN1405520A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106123244A (en) * | 2016-08-08 | 2016-11-16 | 珠海格力电器股份有限公司 | Drainage control method and device of air conditioning system |
| CN106123244B (en) * | 2016-08-08 | 2018-11-30 | 珠海格力电器股份有限公司 | drainage control method and device of air conditioning system |
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