CN106403411A - Throttling device, air conditioner device and control method of air conditioner device - Google Patents

Throttling device, air conditioner device and control method of air conditioner device Download PDF

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Publication number
CN106403411A
CN106403411A CN201610826879.4A CN201610826879A CN106403411A CN 106403411 A CN106403411 A CN 106403411A CN 201610826879 A CN201610826879 A CN 201610826879A CN 106403411 A CN106403411 A CN 106403411A
Authority
CN
China
Prior art keywords
valve
throttle
throttling
air
conditioning equipment
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
Application number
CN201610826879.4A
Other languages
Chinese (zh)
Inventor
刘佳欢
邹大枢
刘海峰
胡灯耀
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CN201610826879.4A priority Critical patent/CN106403411A/en
Publication of CN106403411A publication Critical patent/CN106403411A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B41/00Fluid-circulation arrangements
    • F25B41/30Expansion means; Dispositions thereof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/30Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00Control or safety arrangements
    • F24F11/62Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
    • F24F11/63Electronic processing
    • F24F11/64Electronic processing using pre-stored data
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/10Temperature
    • F24F2110/12Temperature of the outside air
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24FAIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F2110/00Control inputs relating to air properties
    • F24F2110/40Pressure, e.g. wind pressure

Abstract

The invention discloses a throttling device, an air conditioner device and a control method of an air conditioner device. The throttling device comprises a first throttling valve and a second throttling valve which are arranged in parallel, wherein when one of a pipeline where the first throttling valve is located and a pipeline where the second throttling valve is located is connected, the other pipeline can be closed; and the throttling direction of the first throttling valve and the throttling direction of the second throttling valve are the same, and the hole diameter of a valve element of the second throttling valve is larger than the hole diameter of a valve element of the first throttling valve. In the throttling device, the different throttling valves can be selected for throttling according to different working conditions; relative to the first throttling valve, the throttling action of the second throttling valve is weak, the speed of refrigerant flowing through the throttling device can be increased under the overload working condition, and therefore the probability of high-voltage protection occurring under the overload working condition of the air conditioner device can be reduced; and meanwhile, the throttling precision of the whole throttling device is improved, and stable running of the air conditioner device under the rated working condition is guaranteed conveniently.

Description

Throttling arrangement, air-conditioning equipment and its control method
Technical field
The present invention relates to air-conditioner throttling technical field, more particularly, it relates to a kind of throttling arrangement, air-conditioning equipment and its control Method processed.
Background technology
One of throttling arrangement vitals in air-conditioning equipment, conventional throttling arrangement mainly has electric expansion valve, heating power swollen Swollen valve, choke valve, throttle capillary tube etc., wherein, choke valve is relatively low and restriction effect is preferably widely used by its price.But It is that choke valve is one-way throttle, and choke valve cannot adjust use, lead to air-conditioning equipment to be easier to that under overload operating mode height occurs Pressure protection.
In sum, how to throttle, to reduce the probability that air-conditioning equipment high voltage protective under overload operating mode, be mesh Front those skilled in the art's problem demanding prompt solution.
Content of the invention
It is an object of the invention to provide a kind of throttling arrangement, to reduce air-conditioning equipment, high pressure guarantor occurs under overload operating mode The probability of shield.It is a further object of the present invention to provide a kind of air-conditioning equipment with above-mentioned throttling arrangement, a kind of air-conditioning equipment Control method.
To achieve these goals, the present invention provides following technical scheme:
A kind of throttling arrangement, including:The first throttle valve being arranged in parallel and second throttle;
Wherein, described first throttle valve is located pipeline and the pipeline at described second throttle place, during one conducting, separately One can be closed;
Described first throttle valve is identical with the throttling direction of described second throttle, the valve element aperture of described second throttle Valve element aperture more than described first throttle valve.
Preferably, above-mentioned throttling arrangement also includes:The 3rd choke valve connected with described first throttle valve, with described second 4th choke valve of choke valve series connection;
Wherein, described 3rd choke valve is identical with the throttling direction of described 4th choke valve, described 3rd choke valve and institute The throttling stating first throttle valve is in opposite direction, and the spool bore of the valve element aperture of described 4th choke valve and described 3rd choke valve Footpath is unequal.
Preferably, the valve element aperture of described 4th choke valve is more than the valve element aperture of described 3rd choke valve.
Preferably, the valve cage of described first throttle valve and the valve cage of described 3rd choke valve are tied for integral type Structure;The valve cage of described second throttle is integral type structure with the valve cage of described 4th choke valve.
Preferably, the pipeline that described first throttle valve is located is serially connected with the first stop valve, and described second throttle is located Pipeline is serially connected with the second stop valve, and described first stop valve and described second stop valve are arranged in parallel.
Preferably, described first stop valve is located at the throttling inlet side of described first throttle valve, described second stop valve position Throttling inlet side in described second throttle.
Preferably, described first stop valve and described second stop valve are electromagnetic valve.
Preferably, described first stop valve and described second stop valve are normal closed gate.
The using method of throttling arrangement that the present invention provides is:When air-conditioning equipment normally runs, first throttle valve is located Pipeline conducting, the pipeline that second throttle is located closes, and first throttle valve plays and carry out throttling action;When air-conditioning equipment is in Overload operating mode, the pipeline that first throttle valve is located is closed, the pipeline conducting that second throttle is located, and second throttle plays section Stream acts on.
In the throttling arrangement that the present invention provides, first throttle valve and second throttle are arranged in parallel, first throttle valve institute Pipeline and the pipeline that is located of second throttle in one conducting when, another one can be closed, first throttle valve and second section Direction is identical and the valve element aperture of second throttle is more than the valve element aperture of first throttle valve for the throttling of stream valve, then can be according to not Different choke valves are selected to be throttled with operating mode, with respect to first throttle valve, the throttling action of second throttle is weaker, then exist Coolant can be accelerated under overload operating mode and pass through the speed of this throttling arrangement such that it is able to reduce air-conditioning equipment in overload operating mode The lower probability that high voltage protective occurs.
Meanwhile, in the throttling arrangement that the present invention provides, the valve element aperture of second throttle is more than the valve element of first throttle valve Aperture, can select different choke valves to be throttled according to different operating modes, then improve the throttling precision of whole throttling arrangement; Also allow for ensureing that air-conditioning equipment stably runs under declared working condition.
Based on the throttling arrangement of above-mentioned offer, present invention also offers a kind of air-conditioning equipment, this air-conditioning equipment includes:Indoor Heat exchanger, outdoor heat exchanger, connect the throttling arrangement of described indoor heat exchanger and described outdoor heat exchanger;Wherein, described throttling Device is the throttling arrangement described in above-mentioned any one.
Preferably, described indoor heat exchanger is located at the throttling inlet side of described first throttle valve.
Preferably, described outdoor heat exchanger is located at the throttling inlet side of described first throttle valve.
Based on the air-conditioning equipment of above-mentioned offer, present invention also offers a kind of control method of air-conditioning equipment, described air-conditioning Indoor heat exchanger described in equipment is located at the throttling inlet side of described first throttle valve, and the control method of this air-conditioning equipment includes walking Suddenly:
Whether detection air-conditioning equipment is in heating excess load operating mode;
If so, the described first throttle valve pipeline being located the pipeline opening described second throttle place are then closed;If No, then open the described first throttle valve pipeline being located the pipeline closing described second throttle place.
Preferably, detect whether described air-conditioning equipment is in heating excess load operating mode and includes step:
Detection outdoor environment temperature and indoor environment temperature, if described outdoor environment temperature is more than the first preset temperature and institute State indoor environment temperature and be more than the second preset temperature, then described air-conditioning equipment is in heating excess load operating mode.
Preferably, detect whether described air-conditioning equipment is in heating excess load operating mode and includes step:
Detect the pressure at expulsion of the compressor of described air-conditioning equipment, if described pressure at expulsion is more than the first preset pressure, Described air-conditioning equipment is in heating excess load operating mode.
Based on the air-conditioning equipment of above-mentioned offer, present invention also offers a kind of control method of air-conditioning equipment, described air-conditioning Outdoor heat exchanger described in equipment is located at the throttling inlet side of described first throttle valve, and the control method of this air-conditioning equipment includes walking Suddenly:
Whether detection air-conditioning equipment is in refrigeration overload operating mode;
If so, the described first throttle valve pipeline being located the pipeline opening described second throttle place are then closed;If No, then open the described first throttle valve pipeline being located the pipeline closing described second throttle place.
Preferably, detect whether described air-conditioning equipment is in refrigeration overload operating mode and includes step:
Detection outdoor environment temperature and indoor environment temperature, if described outdoor environment temperature is more than the 3rd preset temperature and institute State indoor environment temperature and be more than the 4th preset temperature, then described air-conditioning equipment is in refrigeration overload operating mode.
Preferably, detect whether described air-conditioning equipment is in refrigeration overload operating mode and includes step:
Detect the pressure at expulsion of the compressor of described air-conditioning equipment, if described pressure at expulsion is more than the second preset pressure, Described air-conditioning equipment is in refrigeration overload operating mode.
Brief description
For the technical scheme being illustrated more clearly that in the embodiment of the present invention, below will be to embodiment or description of the prior art In required use accompanying drawing be briefly described it should be apparent that, drawings in the following description be only the present invention enforcement Example, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to the accompanying drawing providing Obtain other accompanying drawings.
Fig. 1 is a kind of structural representation of throttling arrangement provided in an embodiment of the present invention;
Fig. 2 is another kind of structural representation of throttling arrangement provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete Site preparation description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.It is based on Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of not making creative work Embodiment, broadly falls into the scope of protection of the invention.
As shown in figure 1, throttling arrangement provided in an embodiment of the present invention includes:The first throttle valve 11 and second being arranged in parallel Choke valve 12;Wherein, first throttle valve 11 is located pipeline and the pipeline at second throttle 12 place, during one conducting, another Person can close;First throttle valve 11 is identical with the throttling direction of second throttle 12, and the valve element aperture of second throttle 12 is big Valve element aperture in first throttle valve 11.
It is understood that choke valve mainly includes:Valve cage and the valve element being located in valve cage.Valve element aperture is got over Greatly, the throttling action of choke valve is less;Accordingly, valve element aperture is less, and the throttling action of choke valve is bigger.Therefore, second section The throttling action of stream valve 12 is less than the throttling action of first throttle valve 11.
Above-mentioned throttling arrangement is used for connecting indoor heat exchanger and the outdoor heat exchanger of air-conditioning equipment.The making of above-mentioned throttling arrangement With method it is:When air-conditioning equipment normally runs, the pipeline conducting that first throttle valve 11 is located, the pipe that second throttle 12 is located Road is closed, and first throttle valve 11 plays and carries out throttling action;When air-conditioning equipment is in overload operating mode, first throttle valve 11 is located Pipeline close, the pipeline conducting that second throttle 12 is located, second throttle 12 plays throttling action.
In throttling arrangement provided in an embodiment of the present invention, first throttle valve 11 and second throttle 12 are arranged in parallel, the In the pipeline at the pipeline at one choke valve 11 place and second throttle 12 place during one conducting, another one can be closed, and first The throttling direction of choke valve 11 and second throttle 12 is identical and valve element aperture of second throttle 12 is more than first throttle valve 11 Valve element aperture, then different choke valves can be selected to be throttled according to different operating modes, with respect to first throttle valve 11, second The throttling action of choke valve 12 is weaker, then can accelerate the speed that coolant passes through this throttling arrangement under overload operating mode, thus The probability that air-conditioning equipment high voltage protective under overload operating mode can be reduced.
Meanwhile, in throttling arrangement provided in an embodiment of the present invention, the valve element aperture of second throttle 12 is more than first throttle The valve element aperture of valve 11, can select different choke valves to be throttled according to different operating modes, then improve whole throttling arrangement Throttling precision;Also allow for ensureing that air-conditioning equipment stably runs under declared working condition.
It should be noted that in above-mentioned throttling arrangement, the valve element aperture of first throttle valve 11 and the valve of second throttle 12 Core bore footpath, needs to be set according to practical situation, specifically, the valve element aperture of first throttle valve 11 can be existed by air-conditioning equipment Determine during normal operation, second throttle core 12 can be determined under overload operating mode by air-conditioning equipment.
Because choke valve is one-way throttle, then after above-mentioned throttling arrangement is applied to air-conditioning equipment, can only in refrigeration mode or Reduce the probability that air-conditioning equipment high voltage protective under overload operating mode under person's heating mode.For further optimisation technique side Case, as shown in Fig. 2 above-mentioned throttling arrangement also includes:The 3rd choke valve 13 connected with first throttle valve 11, with the second throttling 4th choke valve 14 of valve 12 series connection;Wherein, the 3rd choke valve 13 is identical with the throttling direction of the 4th choke valve 14, the 3rd throttling The throttling of valve 13 and first throttle valve 11 is in opposite direction, and the valve element of the valve element aperture of the 4th choke valve 14 and the 3rd choke valve 13 Aperture is unequal.It is understood that the 3rd choke valve 13 and the 4th choke valve 14 are arranged in parallel.
Assume that, under refrigeration mode, first throttle valve 11 and second throttle 12 can play throttling action;So heat mould Under formula, the 3rd choke valve 13 and the 4th choke valve 14 can play throttling action.Above-mentioned throttling arrangement can reduce air-conditioning equipment The probability of high voltage protective occurs under refrigeration overload operating mode;Again due to valve element aperture and the 3rd choke valve of the 4th choke valve 14 13 valve element aperture is unequal it is also possible to reduction air-conditioning equipment the probability of high voltage protective under heating excess load operating mode, then No matter refrigeration mode or heating mode, all can reduce the probability that air-conditioning equipment high voltage protective under overload operating mode, Improve reliability.
The valve element aperture of above-mentioned 4th choke valve 14 is unequal with the valve element aperture of the 3rd choke valve 13, that is, above-mentioned Section four The valve element aperture of stream valve 14 is more than or less than the valve element aperture of the 3rd choke valve 13.Install for convenience and control, preferential choosing The valve element aperture selecting the 4th choke valve 14 is more than the valve element aperture of the 3rd choke valve 13.
The using method of above-mentioned throttling arrangement is:When air-conditioning equipment normally runs in refrigeration mode, first throttle valve 11 The pipeline conducting being located, the pipeline that second throttle 12 is located is closed, and first throttle valve 11 plays and carries out throttling action;Work as air-conditioning Equipment is in refrigeration overload operating mode, and the pipeline that first throttle valve 11 is located is closed, the pipeline conducting that second throttle 12 is located, Second throttle 12 plays throttling action;When air-conditioning equipment normally runs in heating mode, the pipe that the 3rd choke valve 13 is located Road turns on, and the pipeline that the 4th choke valve 14 is located is closed, and the 3rd choke valve 13 plays and carries out throttling action;When air-conditioning equipment is in Refrigeration overload operating mode, the pipeline that the 3rd choke valve 13 is located is closed, the pipeline conducting that the 4th choke valve 14 is located, the 4th throttling Valve 14 plays throttling action.
In above-mentioned throttling arrangement, the valve element aperture of second throttle 12 is more than the valve element aperture of first throttle valve 11, for The valve element aperture of second throttle 12 and the difference in the valve element aperture of first throttle valve 11, can be designed according to practical situation, The embodiment of the present invention does not limit to this;In the same manner, the valve element of the valve element aperture for the 4th choke valve 14 and the 3rd choke valve 13 The difference in aperture, the embodiment of the present invention does not also limit.The valve element aperture of first throttle valve 11 and the 3rd choke valve 13 can equal, Also can not wait, second throttle 12 can equal, also can not wait with the valve element aperture of the 4th choke valve 14.
In order to simplify structure, first throttle valve 11 and the 3rd choke valve 13 are serially connected with same pipe, second throttle 12 It is serially connected with same pipe with the 4th choke valve 14, as shown in Figure 2.Certainly, first throttle valve 11 and threeth throttling also may be selected Valve 13 is serially connected with different pipes, and second throttle 12 is serially connected with different pipes from the 4th choke valve 14, as long as ensureing first Choke valve 11 is connected with the 3rd choke valve 13, second throttle 12 is connected with the 4th choke valve 14.
Further, the valve cage of above-mentioned first throttle valve 11 and the valve cage of the 3rd choke valve 13 are tied for integral type Structure;The valve cage of the valve cage of second throttle 12 and the 4th choke valve 14 is integral type structure, as shown in Figure 2.So, Simplify structure, reduce cost, be also convenient for installing.
Pipeline and the pipeline at second throttle 12 place that above-mentioned first throttle valve 11 is located, during one conducting, another one Can close.Realize above-mentioned functions, mainly realized by valve.Valve is realized this function and be there is various ways.Preferably, first The pipeline that choke valve 11 is located is serially connected with the first stop valve 21, and the pipeline that second throttle 12 is located is serially connected with the second stop valve 22, and the first stop valve 21 and the second stop valve 22 be arranged in parallel, as depicted in figs. 1 and 2.
Above-mentioned throttling arrangement, when the pipeline needing to cut out first throttle valve 11 place, cuts out the first stop valve 21, When the pipeline needing to open first throttle valve 11 place, open the first stop valve 21;Correspondingly, when needing to close second During the pipeline that choke valve 12 is located, close the second stop valve 22, when the pipeline needing to open second throttle 12 place, Open the second stop valve 22.
Above-mentioned throttling arrangement, realizes the conducting of pipeline by the first stop valve 21 and 22 two stop valves of the second stop valve And closing, it is easy to control.
In order to avoid coolant can not flow in the choke valve of throttling action, above-mentioned first stop valve 21 is located at first throttle valve 11 throttling inlet side, the second stop valve 22 is located at the throttling inlet side of second throttle 12, as shown in Figure 2.
It should be noted that the throttling import of first throttle valve 11, refer to the import being throttled, that is, liquid warp knuckle flows to mouth Just can be throttled after entering first throttle valve 11, if liquid enters without throttling import can not be throttled after first throttle valve 11. Correspondingly, the throttling import of the second stop valve 12 is also such, repeats no more herein.
When above-mentioned throttling arrangement has the 3rd choke valve 13 and four choke valves 14, also can be in the section of the 3rd choke valve 13 The throttling inlet side of stream inlet side and the 4th choke valve 14 sets up stop valve, and the embodiment of the present invention does not limit to the number of stop valve Fixed.
Being turned on and off for the ease of control piper, prioritizing selection the first stop valve 21 and the second stop valve 22 are electricity Magnet valve.Specifically, electromagnetic valve is controlled to obtain electric dead electricity, you can to realize being turned on and off of pipeline.Certainly, first cut-off also may be selected Valve 21 and the second stop valve 22 is electrodynamic valve etc. it is not limited to this.
In order to improve reliability, above-mentioned first stop valve 21 and the second stop valve 22 are normal closed gate.Certainly, also optional Select above-mentioned first stop valve 21 and the second stop valve 22 is normally opened valve it is not limited to this.
When the first stop valve 21 and the second stop valve 22 are electromagnetic valve and during for normal closed gate, the first stop valve 21 and the Two stop valves 22 are closed mode under power-down mode, are open mode under obtaining electricity condition.
Pipeline and the pipeline at second throttle 12 place that above-mentioned first throttle valve 11 is located, during one conducting, another one Can close, also can be realized by two-position three-way valve.Specifically, two-position three-way valve has first interface, second interface and the 3rd Interface, when two-position three-way valve is in first state, first interface is connected with second interface, when two-position three-way valve is in the second shape First interface and the 3rd orifice during state, the pipeline that above-mentioned first throttle valve 11 is located connects with the first of two-position three-way valve respectively Mouth connects with second interface, pipeline and the 3rd orifice of two-position three-way valve that second throttle 12 is located.
Certainly, also can also realize above-mentioned functions by other valves, be designed with specific reference to being actually needed, the present invention is real Apply example this is not limited.
The throttling arrangement being provided based on above-described embodiment, the embodiment of the present invention additionally provides a kind of air-conditioning equipment, this air-conditioning Equipment includes:Indoor heat exchanger, outdoor heat exchanger, connect the throttling arrangement of indoor heat exchanger and outdoor heat exchanger;Wherein, throttle Device is the throttling arrangement described in above-described embodiment.
Because above-mentioned throttling arrangement has above-mentioned technique effect, above-mentioned air-conditioning equipment has above-mentioned throttling arrangement, then above-mentioned Air-conditioning equipment also has corresponding technique effect, repeats no more herein.
Above-mentioned throttling arrangement has throttling direction, and optional outdoor heat exchanger is located at the throttling import of first throttle valve 11 Side, now, indoor heat exchanger be located at first throttle valve 11 throttling outlet side, air-conditioning equipment in cooling mode, first throttle Valve 11 and second throttle 12 have throttling action;Throttling import that indoor heat exchanger be located at first throttle valve 11 also may be selected Side, now, outdoor heat exchanger be located at first throttle valve 11 throttling outlet side, air-conditioning equipment in a heating mode, first throttle Valve 11 and second throttle 12 have throttling action.
It is understood that throttling outlet is relative with the import that throttles, throttling import and throttling outlet are two of choke valve Interface.
The air-conditioning equipment being provided based on above-described embodiment, the embodiment of the present invention additionally provides a kind of controlling party of air-conditioning equipment Method, in this air-conditioning equipment, indoor heat exchanger is located at the throttling inlet side of first throttle valve 11, the control method of above-mentioned air-conditioning equipment Including step:
S01:Whether detection air-conditioning equipment is in heating excess load operating mode:
Whether air-conditioning equipment is in heating excess load operating mode, can be sentenced according to indoor environment temperature and outdoor environment temperature Disconnected, also can be judged according to the delivery temperature of the compressor of air-conditioning equipment, in order to improve accuracy, prioritizing selection is according to sky The delivery temperature of the compressor of tune equipment judges whether air-conditioning equipment is in heating excess load operating mode.
If being judged according to indoor environment temperature and outdoor environment temperature, detection air-conditioning equipment whether be in heated negative Lotus operating mode specifically includes step:Detection outdoor environment temperature and indoor environment temperature, if outdoor environment temperature is more than first preset Temperature and indoor environment temperature are more than the second preset temperature, then air-conditioning equipment is in heating excess load operating mode.Default for first Temperature and the concrete numerical value of the second preset temperature, can be set, the embodiment of the present invention does not limit to this according to actual needs. It is understood that not limiting to the judgement order of outdoor environment temperature and indoor environment temperature, can be set as needed Fixed.
If being judged according to the delivery temperature of compressor, it is concrete whether detection air-conditioning equipment is in heating excess load operating mode Including step:The pressure at expulsion of the compressor of detection air-conditioning equipment, if pressure at expulsion is more than the first preset pressure, air-conditioning equipment It is in heating excess load operating mode.For the concrete numerical value of the first preset pressure, can be set according to actual needs, the present invention is real Apply example this is not limited.
Certainly, other also may be selected and judge whether air-conditioning equipment is in heating excess load operating mode according to other specification, and It is not limited to this.
S02:If so, the first throttle valve pipeline being located the pipeline opening second throttle place are then closed;If it is not, then Open the pipeline at first throttle valve place and close the pipeline at second throttle place:
When the pipeline that first throttle valve 11 is located is serially connected with the first stop valve 21, the pipeline concatenation that second throttle 12 is located When having the second stop valve 22, by closing and opening the pipe that the first stop valve 21 is closed and opened first throttle valve 11 place Road, by closing and opening the pipeline that the second stop valve 22 is closed and opened second throttle 12 place.
When the pipeline that first throttle valve 11 is located and the pipeline that second throttle 12 is located are located at other valves, can basis The feature of respective valves realizes being turned on and off of pipeline, and the embodiment of the present invention does not limit to this.
When above-mentioned air-conditioning equipment has the 4th choke valve 14 and the 3rd choke valve 13, and the valve element aperture of the 4th choke valve 14 More than the 3rd choke valve 13 valve element aperture when, the control method of above-mentioned air-conditioning equipment also includes:Whether detection air-conditioning equipment is located In refrigeration overload operating mode, if so, then close the 3rd choke valve 13 pipeline being located the pipe opening the 4th choke valve 14 place Road;If it is not, then opening the pipeline at the 3rd choke valve 13 place and closing the pipeline at the 4th choke valve 14 place.
The air-conditioning equipment being provided based on above-described embodiment, the embodiment of the present invention additionally provides a kind of controlling party of air-conditioning equipment Method, in this air-conditioning equipment, outdoor heat exchanger is located at the throttling inlet side of first throttle valve 11, the control method of above-mentioned air-conditioning equipment Including step:
S11:Whether detection air-conditioning equipment is in refrigeration overload operating mode:
Whether air-conditioning equipment is in refrigeration overload operating mode, can be sentenced according to indoor environment temperature and outdoor environment temperature Disconnected, also can be judged according to the delivery temperature of the compressor of air-conditioning equipment, in order to improve accuracy, prioritizing selection is according to sky The delivery temperature of the compressor of tune equipment judges whether air-conditioning equipment is in refrigeration overload operating mode.
If being judged according to indoor environment temperature and outdoor environment temperature, detection air-conditioning equipment whether be in freezed negative Lotus operating mode specifically includes step:Detection outdoor environment temperature and indoor environment temperature, if outdoor environment temperature is more than the 3rd preset Temperature and indoor environment temperature are more than the 4th preset temperature, then air-conditioning equipment is in refrigeration overload operating mode.Default for the 3rd Temperature and the concrete numerical value of the 4th preset temperature, can be set according to actual needs, and the such as the 3rd preset temperature is 46.1 DEG C, 4th preset temperature is 26.7 DEG C, and the embodiment of the present invention does not limit to this.It is understood that to outdoor environment temperature and room The judgement order of interior ambient temperature does not limit, and can be set as needed.
If being judged according to the delivery temperature of compressor, it is concrete whether detection air-conditioning equipment is in refrigeration overload operating mode Including step:The pressure at expulsion of the compressor of detection air-conditioning equipment, if pressure at expulsion is more than the second preset pressure, air-conditioning equipment It is in refrigeration overload operating mode.For the concrete numerical value of the second preset pressure, can be set according to actual needs, the present invention is real Apply example this is not limited.
Certainly, other also may be selected and judge according to other specification whether air-conditioning equipment is in refrigeration overload operating mode, and It is not limited to this.
S12:If so, the first throttle valve pipeline being located the pipeline opening second throttle place are then closed;If it is not, then Open the pipeline at first throttle valve place and close the pipeline at second throttle place:
When the pipeline that first throttle valve 11 is located is serially connected with the first stop valve 21, the pipeline concatenation that second throttle 12 is located When having the second stop valve 22, by closing and opening the pipe that the first stop valve 21 is closed and opened first throttle valve 11 place Road, by closing and opening the pipeline that the second stop valve 22 is closed and opened second throttle 12 place.
When the pipeline that first throttle valve 11 is located and the pipeline that second throttle 12 is located are located at other valves, can basis The feature of respective valves realizes being turned on and off of pipeline, and the embodiment of the present invention does not limit to this.
When above-mentioned air-conditioning equipment has the 4th choke valve 14 and the 3rd choke valve 13, and the valve element aperture of the 4th choke valve 14 More than the 3rd choke valve 13 valve element aperture when, the control method of above-mentioned air-conditioning equipment also includes:Whether detection air-conditioning equipment is located In heating excess load operating mode, if so, then close the 3rd choke valve 13 pipeline being located the pipe opening the 4th choke valve 14 place Road;If it is not, then opening the pipeline at the 3rd choke valve 13 place and closing the pipeline at the 4th choke valve 14 place.
In the control method of above-mentioned air-conditioning equipment, when above-mentioned air-conditioning equipment has the 4th choke valve 14 and the 3rd choke valve 13, the valve element aperture of the 4th choke valve 14 is more than valve element aperture, first throttle valve 11 and the 3rd choke valve of the 3rd choke valve 13 11 are serially connected with same pipe, and second throttle 12 and the 4th choke valve 14 are serially connected with same pipe, and first throttle valve 11 The pipeline being located is serially connected with the first stop valve 21, when the pipeline that second throttle 12 is located is serially connected with the second stop valve 22, then no By refrigeration mode or heating mode, detect whether air-conditioning equipment is in overload operating mode, if so, then close the first stop valve 21 And open the second stop valve 22;If it is not, then opening the first stop valve 21 and closing the second stop valve 22.
Described above to the disclosed embodiments, makes those skilled in the art be capable of or uses the present invention.To this Multiple modifications of a little embodiments will be apparent from for a person skilled in the art, and generic principles defined herein can Without departing from the spirit or scope of the present invention, to realize in other embodiments.Therefore, the present invention will not be limited It is formed on the embodiments shown herein, and be to fit to consistent with principles disclosed herein and features of novelty the widest Scope.

Claims (17)

1. a kind of throttling arrangement is it is characterised in that include:The first throttle valve (11) being arranged in parallel and second throttle (12);
Wherein, described first throttle valve (11) is located pipeline and the pipeline that described second throttle (12) is located, one turns on When, another one can be closed;
Described first throttle valve (11) is identical with the throttling direction of described second throttle (12), described second throttle (12) Valve element aperture is more than the valve element aperture of described first throttle valve (11).
2. throttling arrangement according to claim 1 is it is characterised in that also include:Connect with described first throttle valve (11) The 3rd choke valve (13), the 4th choke valve (14) connected with described second throttle (12);
Wherein, described 3rd choke valve (13) is identical with the throttling direction of described 4th choke valve (14), described 3rd choke valve (13) and described first throttle valve (11) throttling in opposite direction, and the valve element aperture of described 4th choke valve (14) and described the The valve element aperture of three choke valves (13) is unequal.
3. throttling arrangement according to claim 2 is it is characterised in that the valve element aperture of described 4th choke valve (14) is more than The valve element aperture of described 3rd choke valve (13).
4. throttling arrangement according to claim 2 is it is characterised in that the valve cage of described first throttle valve (11) and institute The valve cage stating the 3rd choke valve (13) is integral type structure;The valve cage and the described 4th of described second throttle (12) The valve cage of choke valve (14) is integral type structure.
5. the throttling arrangement according to any one in claim 1-4 is it is characterised in that described first throttle valve (11) institute Pipeline be serially connected with the first stop valve (21), the pipeline that described second throttle (12) is located is serially connected with the second stop valve , and described first stop valve (21) and described second stop valve (22) are arranged in parallel (22).
6. throttling arrangement according to claim 5 is it is characterised in that described first stop valve (21) is located at described first segment The throttling inlet side of stream valve (11), described second stop valve (22) is located at the throttling inlet side of described second throttle (12).
7. throttling arrangement according to claim 5 is it is characterised in that described first stop valve (21) and described second ends Valve (22) is electromagnetic valve.
8. throttling arrangement according to claim 5 is it is characterised in that described first stop valve (21) and described second ends Valve (22) is normal closed gate.
9. a kind of air-conditioning equipment, including:Indoor heat exchanger, outdoor heat exchanger, connects described indoor heat exchanger and described outdoor is changed The throttling arrangement of hot device;It is characterized in that, described throttling arrangement is the throttling dress as described in any one in claim 1-8 Put.
10. air-conditioning equipment according to claim 9 is it is characterised in that described indoor heat exchanger is located at described first throttle The throttling inlet side of valve (11).
11. air-conditioning equipments according to claim 9 are it is characterised in that described outdoor heat exchanger is located at described first throttle The throttling inlet side of valve (11).
A kind of 12. control methods of air-conditioning equipment as claimed in claim 10 are it is characterised in that include step:
Whether detection air-conditioning equipment is in heating excess load operating mode;
If so, then close the pipeline that described first throttle valve (11) is located and open the pipe that described second throttle (12) is located Road;If it is not, then opening the pipeline that described first throttle valve (11) is located and closing the pipeline that described second throttle (12) is located.
13. control methods according to claim 12 heated it is characterised in that detecting whether described air-conditioning equipment is in Load condition includes step:
Detection outdoor environment temperature and indoor environment temperature, if described outdoor environment temperature is more than the first preset temperature and described room Interior ambient temperature is more than the second preset temperature, then described air-conditioning equipment is in heating excess load operating mode.
14. control methods according to claim 12 heated it is characterised in that detecting whether described air-conditioning equipment is in Load condition includes step:
Detect the pressure at expulsion of the compressor of described air-conditioning equipment, if described pressure at expulsion is more than the first preset pressure, described Air-conditioning equipment is in heating excess load operating mode.
A kind of 15. control methods of air-conditioning equipment as claimed in claim 11 are it is characterised in that include step:
Whether detection air-conditioning equipment is in refrigeration overload operating mode;
If so, then close the pipeline that described first throttle valve (11) is located and open the pipe that described second throttle (12) is located Road;If it is not, then opening the pipeline that described first throttle valve (11) is located and closing the pipeline that described second throttle (12) is located.
16. control methods according to claim 15 were freezed it is characterised in that detecting whether described air-conditioning equipment is in Load condition includes step:
Detection outdoor environment temperature and indoor environment temperature, if described outdoor environment temperature is more than the 3rd preset temperature and described room Interior ambient temperature is more than the 4th preset temperature, then described air-conditioning equipment is in refrigeration overload operating mode.
17. control methods according to claim 15 were freezed it is characterised in that detecting whether described air-conditioning equipment is in Load condition includes step:
Detect the pressure at expulsion of the compressor of described air-conditioning equipment, if described pressure at expulsion is more than the second preset pressure, described Air-conditioning equipment is in refrigeration overload operating mode.
CN201610826879.4A 2016-09-14 2016-09-14 Throttling device, air conditioner device and control method of air conditioner device Pending CN106403411A (en)

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CN109489200A (en) * 2018-11-09 2019-03-19 珠海格力电器股份有限公司 A kind of anti-high-pressure control device, air-conditioning and its progress control method

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