CN1782585A - One dragging more air conditioner and its control method - Google Patents
One dragging more air conditioner and its control method Download PDFInfo
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- CN1782585A CN1782585A CN 200410093768 CN200410093768A CN1782585A CN 1782585 A CN1782585 A CN 1782585A CN 200410093768 CN200410093768 CN 200410093768 CN 200410093768 A CN200410093768 A CN 200410093768A CN 1782585 A CN1782585 A CN 1782585A
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Abstract
The present invention relates to multi-split air conditioner and its control method. The multi-split air conditioner includes one outdoor unit and several indoor units. The indoor unit includes electronic expansion valve and indoor heat exchanger. The outdoor unit includes several first compressors, several second compressors, compressed air tank, four-way valve, outdoor heat exchanger, by-pass valve, outdoor temperature sensor and outdoor unit controller, which controls the operation of the by-pass valve according to the capacity of the indoor units in heating operation and the outdoor temperature. The control method includes the following stages: for the controller to control the opening and closing based on the capacity of the indoor heat exchangers the user selects and the outdoor temperature after the user inputs the heating operation command. The present invention can prevent the outdoor unit from freezing during the heating operation of the multi-split air conditioner.
Description
Technical field
The present invention relates to an a kind of one dragging more air conditioner and control method thereof.
Background technology
In general, air regulator is a kind of according to different purposes and purpose, room air is adjusted to the home appliance of optimum state.For example, can move with refrigeration modes during summer, make the indoor maintenance state of feeling nice and cool; Can move in the mode of heating during winter, make indoor maintenance warm state; In addition, the humidity in all right conditioning chamber; In a word, air regulator can be adjusted to room air the clean state of comfortable.
Along with such as the popularizing gradually of these life convenience apparatus such as air regulator, the consumer is also just more and more higher for the requirement of aspects such as energy-conservation, the performance of product and ease of use.
Aforesaid air regulator generally can be divided into following types, promptly possesses separately the independently split air conditioning system of indoor set and off-premises station; Indoor set and off-premises station are assembled in the integrated air conditioner in the device; Can be installed in wall hanging type air adjuster and photo frame type air regulator on the wall; Can be erected at vertical (slim) air regulator in the parlor; Capacity is monomer (single) the type air regulator in the less place, some spaces such as can only drive an indoor set, be applied in the family room more; Capacity more greatly, the big-and-middle-sized air regulator in the place such as the company of being applied in or restaurant more; Possesses one dragging more air conditioner of the capacity that is enough to drive a plurality of indoor sets etc.
Above-mentioned split air conditioning system is made of indoor set and off-premises station, and wherein indoor set is installed in indoorly, can send warm braw or cold wind to conditioned space; Processing such as off-premises station can compress cold-producing medium, expansion are so that can realize sufficient heat exchange in the above-mentioned indoor set.
An above-mentioned one dragging more air conditioner is made of a plurality of indoor sets and one or more off-premises stations, is applied in the place that a plurality of independent conditioned spaces are arranged as the school more, and it can carry sufficient warm braw or cold wind to each conditioned space respectively.
The need of the off-premises station of an above-mentioned one dragging more air conditioner possess enough big capacity, even above-mentioned a plurality of indoor set is also wanted to guarantee that above-mentioned a plurality of indoor set all drives all with the state running of 100% output.That is to say, determine the capacity of an above-mentioned one dragging more air conditioner according to a plurality of indoor sets all with the situation of the 100% state running of exporting.
With reference to the accompanying drawings an existing one dragging more air conditioner is illustrated.
As shown in Figure 1, an existing one dragging more air conditioner is by forming with the lower part, i.e. indoor set (30), and it is installed in indoor, possesses a plurality of heat exchangers (6,7,8) that are used for carrying out the refrigerating/heating function; Off-premises station (20), it possesses compressor (1), accumulator (accumulator) (4), four way valve (3), outdoor heat converter (5), a plurality of electric expansion valve (9～11) and machine oil (oil) separator (2).
When the existing one dragging more air conditioner with said structure heats running, the flow path of cold-producing medium is: the cold-producing medium by the HTHP of above-mentioned compressor (1) compression can flow through machine oil (oil) separator (2) and four way valve (3), flows to the 1st to the 3rd indoor heat converter (6,7,8) then.
At this moment, cold-producing medium can flow into according in user's requirement the 1st to the 3rd indoor heat converter (6～8) with the indoor set of heating mode running, and the outlet that the supercooled liquid of high pressure can the from the 1st to the 3rd indoor heat converter (6～8) is discharged then.
In this case, all finish for the adjusting of the refrigerant amount of above-mentioned the 1st to the 3rd indoor heat converter (6～8) and for the cut-out of cold-producing medium stream by the 1st to the 3rd electric expansion valve (9～11).Aforesaid cold-producing medium is regulated by the 1st to the 3rd electric expansion valve (9～11).
Aforesaid cold-producing medium can expand when flowing through the 1st to the 3rd electric expansion valve (9～11), thereby becomes the very low cold-producing medium of low temperature, low pressure and aridity, and so then cold-producing medium can flow to the outdoor heat converter (5) in the off-premises station (20).
These cold-producing mediums flow through outdoor heat converter (5) afterwards, can become the gas of low temperature, flow in the compressor (1) via four way valve (3) and accumulator (4) then.
Aforesaid cold-producing medium can expand when flowing through the 1st to the 3rd electric expansion valve (9～11), thereby becomes the very low cold-producing medium of low temperature, low pressure and aridity, and so then cold-producing medium can flow to the outdoor heat converter (5) in the off-premises station (20).
These cold-producing mediums flow through above-mentioned outdoor heat converter (5) afterwards, can become the gas of low temperature, flow in the compressor (1) via four way valve (3) and accumulator (4) then.
When heating running like this, the operating frequency of above-mentioned compressor (1) utilizes difference, the temperature (TH5) of off-premises station (2), discharge between the remote temperature of setting of remote controller to press (P), discharge temperature decisions such as (TH6) by the temperature (TH4) and the user of the capacity of the indoor set in the running, indoor suction air.
When heating running, adjusting for the open degree of above-mentioned the 1st to the 3rd electric expansion valve (9～11) in the indoor set, be that promptly degree of supercooling is regulated according to the difference between the temperature (TH1) in temperature value that discharge pressure is converted into the saturation temperature gained and the 1st to the 3rd indoor heat converter (6～8) exit.
But, the aforesaid existing existing problem of an one dragging more air conditioner is: in heating operating condition, when the capacity temperature big, off-premises station of the indoor set in the running is hanged down, because the heat-conducting area difference of indoor set and off-premises station is too big, thereby cause in the off-premises station icing easily.
Summary of the invention
In order to overcome the above-mentioned shortcoming that prior art exists, the invention provides an a kind of one dragging more air conditioner and control method thereof, can be when an one dragging more air conditioner heat running, the prevention off-premises station freezes.
The present invention's one one dragging more air conditioner is:
One one dragging more air conditioner, comprise an off-premises station and possess several indoor sets, it is characterized in that, this indoor set has electric expansion valve and indoor heat converter, and the a plurality of the 1st and the 2nd compressor, accumulator, four way valve, outdoor heat converter, by-passing valve and outdoor temperature induction part are housed in the above-mentioned off-premises station; Also comprise the off-premises station control part in the off-premises station, this off-premises station control part can be controlled the action of above-mentioned by-passing valve according to the capacity of the indoor set that heats running with by the detected outdoor inlet temperature of above-mentioned outdoor temperature induction part.
An aforesaid one dragging more air conditioner, wherein when heating running, if the capacity sum of the indoor set in the above-mentioned driving is greater than the setting capacity, and be higher than design temperature by the detected outdoor inlet temperature of above-mentioned outdoor temperature induction part, so above-mentioned control part just can be controlled above-mentioned by-passing valve and make its unlatching.
The control method of the present invention's one one dragging more air conditioner is:
The control method of one one dragging more air conditioner, it is characterized in that, form by indoor set and off-premises station, wherein indoor set possesses a plurality of indoor heat converters, and off-premises station possesses the a plurality of the 1st and the 2nd compressor, accumulator, four way valve, outdoor heat converter, a plurality of electric expansion valve, lubricant separator, by-passing valve and outdoor temperature induction part; Comprise with the next stage, if promptly the user has imported and has heated the running instruction, control part just according to the capacity of selected those heat exchangers of user in above-mentioned a plurality of indoor heat converters with by the detected outdoor inlet temperature of said temperature induction part, is controlled the unlatching of above-mentioned by-passing valve, the stage of closing so.
The control method of an aforesaid one dragging more air conditioner is wherein controlled the stage that by-passing valve opens, cuts out to comprise again with the next stage, i.e. the stage whether the capacity sum of the selected indoor heat converter of above-mentioned user is judged greater than the setting capacity; If greater than the setting capacity, so just to whether being higher than the stage that design temperature is judged by the detected outdoor inlet temperature of above-mentioned outdoor temperature induction part; If above-mentioned outdoor inlet temperature is higher than design temperature, the stage that above-mentioned by-passing valve is opened.
The control method of an aforesaid one dragging more air conditioner, also comprise with the next stage in the stage of wherein control the by-passing valve unlatching, closing, if the capacity sum of the selected indoor heat converter of promptly above-mentioned user is less than the setting capacity, perhaps above-mentioned outdoor inlet temperature is lower than design temperature, so just makes above-mentioned by-passing valve keep the stage of closed condition.
Description of drawings
The present invention is further described below in conjunction with drawings and Examples.
Fig. 1 is the composition structure chart of the heating recycle system of an existing one dragging more air conditioner
Fig. 2 is the view of the installment state of an one dragging more air conditioner of the present invention
Fig. 3 is the composition structure chart of the heating recycle system of an one dragging more air conditioner of the present invention
Fig. 4 is the composition frame chart of the control module of an one dragging more air conditioner of the present invention
Fig. 5 is the flow chart of the control method of an one dragging more air conditioner of the present invention
The number in the figure explanation:
100: 101: the 1 compressors of outdoor unit (unit)
Compressor 103,104 in 102: the 2: machine oil (oil) separator
105: accumulator (accumulator) 106: outdoor heat converter
107: outdoor fan 108: four-way
109: by-passing valve (bypass valve)
200: 201: the 1 distributors of distributor
210: the 1 splitters of 202: the 2 distributors
Splitter 230,240,250 in 220: the 2: electric expansion valve
300: indoor unit
301,302,303,304,305,306: the 1 to the 6th indoor sets
301a, 302a, 303a: the 1st to the 3rd indoor heat converter
301b, 302b, 303b: the 1st to the 3rd indoor fan
The specific embodiment
An one dragging more air conditioner of the present invention as shown in Figures 2 and 3, it has used 2 distributors, can control 6 rooms.It is by forming with the lower part, i.e. off-premises station (100); Distributor (200), it is connected with above-mentioned off-premises station (100), is made of the a plurality of the 1st and the 2nd distributor (201) (202); Indoor unit (300), it is made of the 1st to the 6th indoor set (301～306) that is installed in respectively in each room.
Main refrigerant pipe (P1) by off-premises station (100) between above-mentioned off-premises station (100) and the 1st and the 2nd distributor (201) (202) is connected, be connected by the 1st, the 2nd, the 3rd refrigerant pipe (P2, P3, P4) respectively between above-mentioned the 1st distributor (201) and the 1st to the 3rd indoor set (301,302,303), be connected by the 4th, the 5th, the 6th refrigerant pipe (P5, P6, P7) respectively between above-mentioned the 2nd distributor (202) and the 4th to the 6th indoor set (304,305,306).
Be example with the situation that connects 3 indoor sets on the off-premises station below, the refrigerant-cycle systems (cycle) of an one dragging more air conditioner of the present invention is illustrated.
That adopts an one dragging more air conditioner of the present invention heats the operation cycle system as shown in Figure 3, is made up of an outdoor unit (100), the indoor unit (300) that possesses the 1st to the 3rd indoor set (301,302,303), the distributor (200) that is connected between above-mentioned outdoor unit (100) and the above-mentioned indoor unit (300).
Above-mentioned outdoor unit (100) is by forming with the lower part, the promptly a plurality of the 1st and the 2nd compressor (101) (102), accumulator (105), four way valve (108), outdoor heat converter (106), outdoor fan (107), lubricant separator (103) (104) and by-passing valve (109).Wherein the effect of by-passing valve (109) is: when occurring between the capacity of the capacity of the 1st and the 2nd compressor (101) (102) and the 1st to the 3rd indoor set (301) (302) (303) when unbalanced, this unbalanced in order to subdue, it can form a bypass (bypass) of leading to the inlet of the above-mentioned the 1st and the 2nd compressor (101) (102).
Above-mentioned distributor (200) is made of the 1st and the 2nd splitter (210) (220) and a plurality of electric expansion valve (230) (240) (250).
Above-mentioned indoor unit (300) is made of the 1st to the 3rd indoor set (301) (302) (303), the 1st to the 3rd indoor set (301) (302) (303) again by the 1st to the 3rd indoor heat converter (301a) (302a) (303a) and the 1st to the 3rd indoor fan (301b) (302b) (303b) form.
Have a look heating operation controller and how driving of a one dragging more air conditioner of the present invention with said structure below with reference to Fig. 4.
At first, in above-mentioned the 1st to the 3rd indoor set (301,302,303) the 1st to the 3rd indoor set control part (310) (320) (330) is housed.Above-mentioned outdoor unit (300) is by forming with the lower part, be off-premises station control part (510), it can be communicated by letter with above-mentioned the 1st to the 3rd indoor set control part (310) (320) (330), thereby identification indoor set capacity, and according to the indoor set capacity that identifies and detected by outdoor temperature induction part (560) be that temperature is exported control signal; By-passing valve (109), it can drive according to the control signal of above-mentioned off-premises station control part (510) output; 1st, 2 compressors (101) (102); Four way valve (108); Outdoor fan (107).
If the user has imported action command by above-mentioned press key input section (not shown) to the indoor set that needs start, passing through those indoor sets that above-mentioned press key input section (not shown) received action command and will begin to drive in the 1st to the 3rd indoor set (301,302,303) so.
At this moment, if the action command of above-mentioned user input is for heating running, the information that so above-mentioned off-premises station control part (510) will be transmitted according to above-mentioned the 1st to the 3rd indoor set control part (310,320,330) is discerned the capacity of indoor set.
Below with reference to Fig. 5 the control method of a one dragging more air conditioner of the present invention with said structure is illustrated.At first, judge whether the user has imported start-up command (S101).
Judge whether to have selected to heat running (S102) then.
Next, if above-mentioned judged result (S102) heats in the running for being in, so just whether the capacity sum of indoor set has been surpassed the setting capacity and judged (S103).
If above-mentioned judged result (S103) has surpassed the setting capacity for above-mentioned indoor set capacity sum, so just whether above-mentioned outdoor inlet temperature has been surpassed design temperature and judged (S104).
Next,, so just be used in and prevent that the by-passing valve that freezes from opening (on), get back to the above-mentioned stage (S103) then if above-mentioned judged result (S104) has surpassed design temperature for above-mentioned outdoor inlet temperature.(S105)
On the other hand, if above-mentioned judged result (S103) is that the capacity sum of above-mentioned indoor set surpasses design temperature (S104), or above-mentioned outdoor inlet temperature does not surpass design temperature, so just uses to prevent that the by-passing valve that freezes from continuing to keep cutting out (off) state (S106).
If the user imports shutdown (power off) instruction, so just finish running (S107).
In addition, if above-mentioned judged result (S102) does not have to select to heat running for the user, so just according to selected mode operation (S108).
The effect of invention
Adopt an aforesaid one dragging more air conditioner of the present invention and control method thereof, work as by many so When one one dragging more air conditioner of individual indoor set and an off-premises station composition turns round with heating mode, just can Controlling the On/Off (on/off) of by-passing valve according to the temperature of the capacity of indoor set and off-premises station, Thereby reach the effect that the prevention off-premises station freezes.
Claims (5)
1, an one dragging more air conditioner, comprise an off-premises station and possess several indoor sets, it is characterized in that, this indoor set has electric expansion valve and indoor heat converter, and the a plurality of the 1st and the 2nd compressor, accumulator, four way valve, outdoor heat converter, by-passing valve and outdoor temperature induction part are housed in the above-mentioned off-premises station; Also comprise the off-premises station control part in the off-premises station, this off-premises station control part can be controlled the action of above-mentioned by-passing valve according to the capacity of the indoor set that heats running with by the detected outdoor inlet temperature of above-mentioned outdoor temperature induction part.
2, an one dragging more air conditioner according to claim 1, it is characterized in that when heating running, if the capacity sum of the indoor set in the above-mentioned driving is greater than the setting capacity, and be higher than design temperature by the detected outdoor inlet temperature of above-mentioned outdoor temperature induction part, so above-mentioned control part just can be controlled above-mentioned by-passing valve and make its unlatching.
3, the control method of an one dragging more air conditioner, it is characterized in that, form by indoor set and off-premises station, wherein indoor set possesses a plurality of indoor heat converters, and off-premises station possesses the a plurality of the 1st and the 2nd compressor, accumulator, four way valve, outdoor heat converter, a plurality of electric expansion valve, lubricant separator, by-passing valve and outdoor temperature induction part; Comprise with the next stage, if promptly the user has imported and has heated the running instruction, control part just according to the capacity of selected those heat exchangers of user in above-mentioned a plurality of indoor heat converters with by the detected outdoor inlet temperature of said temperature induction part, is controlled the unlatching of above-mentioned by-passing valve, the stage of closing so.
4, the control method of an one dragging more air conditioner according to claim 3, it is characterized in that the stage that above-mentioned control by-passing valve opens, cuts out comprises again with the next stage, i.e. the stage whether the capacity sum of the selected indoor heat converter of above-mentioned user is judged greater than the setting capacity; If greater than the setting capacity, so just to whether being higher than the stage that design temperature is judged by the detected outdoor inlet temperature of above-mentioned outdoor temperature induction part; If above-mentioned outdoor inlet temperature is higher than design temperature, the stage that above-mentioned by-passing valve is opened.
5, the control method of an one dragging more air conditioner according to claim 4, also comprise with the next stage in the stage of it is characterized in that above-mentioned control by-passing valve unlatching, closing, if the capacity sum of the selected indoor heat converter of promptly above-mentioned user is less than the setting capacity, perhaps above-mentioned outdoor inlet temperature is lower than design temperature, so just makes above-mentioned by-passing valve keep the stage of closed condition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093768 CN1782585A (en) | 2004-11-30 | 2004-11-30 | One dragging more air conditioner and its control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410093768 CN1782585A (en) | 2004-11-30 | 2004-11-30 | One dragging more air conditioner and its control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1782585A true CN1782585A (en) | 2006-06-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410093768 Pending CN1782585A (en) | 2004-11-30 | 2004-11-30 | One dragging more air conditioner and its control method |
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| CN (1) | CN1782585A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538274A (en) * | 2012-02-19 | 2012-07-04 | 周玉涛 | Multiple on-line system without gas-liquid separator and control mode thereof |
| CN103148564A (en) * | 2013-03-26 | 2013-06-12 | 青岛海尔空调电子有限公司 | Method and device for realizing communication of controller of multi-split air conditioner unit for cooling and warming simultaneously |
| CN103471216A (en) * | 2013-09-29 | 2013-12-25 | 海信（山东）空调有限公司 | Split valve box refrigeration system intelligently matched with air conditioner indoor and outdoor units and air conditioner |
| CN103791589A (en) * | 2014-01-21 | 2014-05-14 | 宁波奥克斯电气有限公司 | Method for judging whether multi-union air conditioning unit of heating mode is suffered from ice blockage due to water |
| CN104676856A (en) * | 2015-02-28 | 2015-06-03 | 广东美的制冷设备有限公司 | Air conditioner and refrigeration control method thereof |
| CN109899927A (en) * | 2019-03-20 | 2019-06-18 | 广东美的暖通设备有限公司 | Reduce the method and device thereof of multi-line system refrigerant flow noise |
-
2004
- 2004-11-30 CN CN 200410093768 patent/CN1782585A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102538274A (en) * | 2012-02-19 | 2012-07-04 | 周玉涛 | Multiple on-line system without gas-liquid separator and control mode thereof |
| CN103148564A (en) * | 2013-03-26 | 2013-06-12 | 青岛海尔空调电子有限公司 | Method and device for realizing communication of controller of multi-split air conditioner unit for cooling and warming simultaneously |
| CN103148564B (en) * | 2013-03-26 | 2015-07-29 | 青岛海尔空调电子有限公司 | Realize communication means and the device of changes in temperature multi-gang air-conditioner generator set controller simultaneously |
| CN103471216A (en) * | 2013-09-29 | 2013-12-25 | 海信（山东）空调有限公司 | Split valve box refrigeration system intelligently matched with air conditioner indoor and outdoor units and air conditioner |
| CN103791589A (en) * | 2014-01-21 | 2014-05-14 | 宁波奥克斯电气有限公司 | Method for judging whether multi-union air conditioning unit of heating mode is suffered from ice blockage due to water |
| CN103791589B (en) * | 2014-01-21 | 2016-03-30 | 宁波奥克斯电气股份有限公司 | Judge the VRF Air Conditioning System method whether ice is stifled due to water of heating mode |
| CN104676856A (en) * | 2015-02-28 | 2015-06-03 | 广东美的制冷设备有限公司 | Air conditioner and refrigeration control method thereof |
| CN109899927A (en) * | 2019-03-20 | 2019-06-18 | 广东美的暖通设备有限公司 | Reduce the method and device thereof of multi-line system refrigerant flow noise |
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