CN103471210B - Water system air-conditioner, the winterization system of air conditioning system and method - Google Patents
Water system air-conditioner, the winterization system of air conditioning system and method Download PDFInfo
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- CN103471210B CN103471210B CN201210183634.6A CN201210183634A CN103471210B CN 103471210 B CN103471210 B CN 103471210B CN 201210183634 A CN201210183634 A CN 201210183634A CN 103471210 B CN103471210 B CN 103471210B
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Abstract
The winterization system of a kind of air conditioning system, it is connected with needs guard block, to remove the liquid needed in guard block, comprising: make described to need guard block to be in the first isolating device of isolation with the liquid in input fluid pipeline；Make described the second isolating device needing the liquid in guard block and outfan fluid pipeline to be in isolation；The gas needing guard block to isolate with liquid in its fluid output port pipeline or connecting is made to input discharger by the input of gas with discharge; and the control system of the isolating device work described in controlling, this control system makes to need parts to be protected connecting with liquid and switching under isolation two states.The present invention can effectively prevent liquid from flowing backwards, it is to avoid when ambient temperature is below the freezing point, and needs the frozen damage of guard block.
Description
Technical field
The present invention relates to household appliance technical field, particularly relate to a kind of water system air-conditioner and antifreeze method thereof.
Background technology
Existing air-conditioning freezing proof technique is having a power failure or under heat generating components failure conditions, it is impossible to provide protection reliably；
And the freezing proof technique of water pipe of being correlated with, in the case of after water system air-conditioner is shut down, temperature significantly declines, it is impossible to
The problem overcoming aqueous reflux.
As it is shown in figure 1, Fig. 1 is the schematic diagram of the anti-freezing structure of a kind of water system air-conditioner in prior art.Should
Anti-freezing structure includes controller 11, temperature inductor 12 and needs guard block 13.Need guard block
13 are the parts needing to carry out anti-frost protection.The operation principle of the anti-freezing structure used in this kind of air conditioning system
It is that temperature inductor is set on needs guard block, when temperature inductor perceives temperature less than design temperature
Time, air conditioning system starts or opens electrical heating elements.The shortcoming of this kind of anti-freezing structure is: lose at heater block
During effect or under power-off condition, it is impossible to needs guard block is played a protective role；Or lose at temperature inductor
During effect, it is impossible to protection system；And this kind of anti-freezing structure needs to consume the energy, adds making of air conditioning system
Use cost.
As in figure 2 it is shown, Fig. 2 is the structural representation of the anti-freezing structure of a kind of running water pipe in prior art.
This winterization system includes U-bend 22 and the U-bend that water source house steward 21 is connected with water source house steward 21
Pipe 22 connect running water pipe 23, check valve 24, pulsometer 26, delay switch 26, discharging valve 27 with
And start contact 28.The operation principle of this anti-freezing structure is: discharging valve cuts out, and makes to bring about the desired sensation to pulsometer power transmission
Press pump starts, and pressure-air backs down check valve and blows in running water pipe by air, by the water in running water pipe
Head in water source house steward；After pulsometer closedown, U-bend forms gas to block up, prevent tap water from refluxing.This kind
The shortcoming of anti-freezing structure is: in this structure, U-bend sets up, and air is only by a small amount of for water pipe middle and upper part water
Discharging, air-water will be layered in horizontal tube, and top is gas circuit, and the water of bottom cannot be discharged；Next, even if
Be that its U-bend is bent downwardly, water can be made to discharge, also cannot avoid and after a period of time, due to empty around
The reason of gas heat exchange, is reduced to again ambient air temperature, and gas volume will significantly reduce, and cause aqueous reflux,
Make, when ambient temperature is below the freezing point, to cause certain freezing；, again, when protection object is air-conditioning plate
When formula heat exchanger, shell and tube exchanger, it is basically identical with heat exchanger by rising that pressure-air is filled with rear temperature
Higher temperature, and after a period of time, due to surrounding air heat exchange, be reduced to again surrounding air temperature
Degree, difference variation is very big, and gas volume will significantly reduce, and cause aqueous reflux so that in ambient temperature
When being below the freezing point, heat exchanger meeting freeze damage, the reliability of winterization system is a problem the severeest.
Therefore, for above-mentioned technical problem, it is necessary to provide a kind of antifreeze system that can be suitably used for water system air-conditioner
System, to overcome drawbacks described above.
Summary of the invention
In view of this, it is an object of the invention to provide the winterization system of a kind of water system air-conditioner, it is possible to effectively
The liquid that prevents flow backwards, thus avoid when ambient temperature is below the freezing point freeze damage heat exchanger etc. to need protection
Parts.
For achieving the above object, the present invention provides following technical scheme:
The winterization system of a kind of air conditioning system, it is connected with needs guard block, needs guard block to remove
Interior liquid, comprising:
Make described the first isolation needing guard block and the liquid in input fluid pipeline to be in isolation
Device, the first described isolating device is arranged to be needed between guard block and its fluid input port pipeline, control
System needs guard block and the fluid connection in input pipeline or isolation；
Make described the second isolation needing guard block and the liquid in outfan fluid pipeline to be in isolation
Device, the second described isolating device is arranged to be needed between guard block and its fluid output port pipeline, control
System needs guard block and fluid connection or isolation in its fluid output port pipeline；
Make to need guard block to isolate with liquid in its fluid output port pipeline by the input of gas and discharge or
The gas input discharger of connection, it includes that gas inputs outlet, when needs are antifreeze, by needing
Want input gas in guard block, it would be desirable to the liquid in guard block is discharged in fluid pipeline, at needs
When normal work starts, the gas being full of in making to need guard block is discharged system and closes gas passage, makes
In needing guard block hydraulically full and with fluid connection in input and outfan fluid pipeline；
And the control system of the isolating device work described in controlling, this control system makes to need parts to be protected
Connecting with liquid and switching under isolation two states.
Preferably, in the winterization system of above-mentioned air conditioning system, described gas input discharger is high pressure
Gas input discharger, input and discharge by gases at high pressure make to need guard block and its fluid pipeline
The isolation of interior liquid or connection.
Preferably, in the winterization system of above-mentioned air conditioning system, described gases at high pressure input discharger bag
Including pressurized gas source, three-way valve, three-way valve includes the first opening being connected with pressurized gas source, with
Need guard block fluid input port connects the second opening that pipeline is connected, and is connected with air and makes needs
Discharge during fluid connection in the liquid in guard block and fluid pipeline system inner high voltage gas discharge the
Three openings.
Preferably, in the winterization system of above-mentioned air conditioning system, the first described isolating device includes the first water
Valve, is located at the first water valve side and the first water level inductor in order to induced liquid liquid level, described second
Isolating device includes the second water valve, is located at the second water valve side and the second water level sense in order to induced liquid liquid level
Answer device.
Preferably, in the winterization system of above-mentioned air conditioning system, described the first liquid level induction system and second
Liquid level induction system is float-ball type water level inductor.
A kind of water system air-conditioner, it has the winterization system of the air conditioning system as described in claim 1 ~ 5 is arbitrary.
A kind of antifreeze method of air conditioning system, described air conditioning system has as described in claim 1-5 is arbitrary
The winterization system of air conditioning system, described air conditioning system also includes air-conditioner host, water pump, compressor, needs
Guard block and with the fluid pipeline needing guard block to be connected, described antifreeze method comprises the steps:
S101: after air-conditioner host receives closedown system command, water pump and compressor quit work, controller
Control the first isolating device closedown, the second isolating device is opening, and gas input discharger is opened,
Gas input discharger, by inputting gas in needs guard block, makes to need the liquid in guard block
All it is scavenged in its outfan fluid pipeline；
S102: after arrived the second certain liquid level by press liquid, closes gas input discharger, makes gas
Body input channel is closed, and closes the second isolating device so that the first isolating device and the second isolating device it
Between form airtight space, need guard block and liquid to isolate；
S103: after air-conditioner host receives open system order, control system control the first isolating device still in
Closed mode, the second isolating device unlatching, gas input discharger is opened, and is discharged by gas input and fills
Putting and the gas needed in guard block is discharged system, make to need in guard block is hydraulically full；
S104: after arrived the first certain liquid level by press liquid, closes gas input discharger, makes gas
Body passing away is closed, and opens the first isolating device so that the first isolating device is equal with the second isolating device
In opening, the liquid being full of in needing guard block and the fluid connection in fluid pipeline, water pump and pressure
Contracting machine is opened, and system start-up also normally works.
Preferably, in the antifreeze method of above-mentioned air conditioning system, described gas input discharger is high pressure
Gas input discharger, input and discharge by gases at high pressure make to need guard block and its fluid pipeline
The isolation of interior liquid or connection.
It is furthermore preferred that in the winterization system of above-mentioned air conditioning system, described gases at high pressure input discharger
Including pressurized gas source, three-way valve, three-way valve includes the first opening being connected with pressurized gas source,
The second opening being connected with the connection pipeline needing guard block fluid input port, is connected with air and makes to need
Want the discharge of discharge system inner high voltage gas when the liquid in guard block and the fluid connection in fluid pipeline
3rd opening.In described step S101 by gas input discharger open, control three-way valve and high pressure
The first opening that gas source is connected, is connected with the connection pipeline needing guard block fluid input port
Second opening in communication, inputs gases at high pressure in needs guard block；Described step S103 controls gas
Input discharger is opened, and controls being connected with air of three-way valve to make to need liquid in guard block and liquid
The 3rd opening of the discharge of system inner high voltage gas is discharged, with needs protection portion during fluid connection in body pipeline
Part fluid input port connect the second opening in communication of being connected of pipeline, make to need the high pressure in guard block
After gas discharge system and close the 3rd opening.
Preferably, in the antifreeze method of above-mentioned air conditioning system, described in described step S102, S104
The second, the first liquid level is the second level setpoint set in advance, the first level setpoint, described step S102
In whether arrived the second level setpoint by press liquid by the second water level inductor perception；Described step
Whether S104 is arrived the first level setpoint by the first water level inductor perception by press liquid.
From technique scheme it can be seen that the present invention can protect the vitals quilt of air conditioning system effectively
Freeze damage, is additionally, since it can be avoided that when ambient temperature is below the freezing point, and liquid flows backwards, antifreeze reliably
Property is greatly improved.And the winterization system simple in construction of the embodiment of the present invention, part is bought convenient, has been saved one-tenth
This.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to enforcement
In example or description of the prior art, the required accompanying drawing used is briefly described, it should be apparent that, describe below
In accompanying drawing for the present invention be only some embodiments of the present invention, for those of ordinary skill in the art
From the point of view of, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of the anti-freezing structure of a kind of water system air-conditioner in prior art；
Fig. 2 is the structural representation of a kind of air-conditioning winterization system in prior art；
Fig. 3 is the structural representation of the winterization system of air conditioning system of the present invention.
Detailed description of the invention
The air conditioning system of prior art has multiple anti-freezing structure.
As it is shown in figure 1, Fig. 1 is the schematic diagram of the anti-freezing structure of a kind of water system air-conditioner in prior art.Should
Anti-freezing structure is by monitoring in real time and need the temperature of guard block needing to arrange on guard block temperature inductor
Degree, when temperature inductor perceives temperature less than design temperature, air conditioning system starts or opens electrical heating unit
Part, but, this kind of anti-freezing structure was when heater block lost efficacy or under power-off condition, it is impossible to needs protection portion
Part plays a protective role, or when temperature inductor lost efficacy, it is impossible to protection system, and this kind of anti-freeze
Structure needs to consume the energy, adds the use cost of air conditioning system.
As in figure 2 it is shown, Fig. 2 is the structural representation of a kind of air-conditioning winterization system in prior art.This is antifreeze
Structure, by arranging U-bend, utilizes U-bend to form gas and blocks up, prevent tap water from refluxing, but, this kind
The U-bend of anti-freezing structure sets up, actually U-bend should down-set rationally because air
Only being discharged by a small amount of for water pipe middle and upper part water, air-water will be layered in horizontal tube, and top is gas circuit, bottom
Water cannot be discharged；Secondly, when being air-conditioning plate type heat exchanger, shell and tube exchanger when protecting object, high pressure is empty
Gas is filled with rear temperature and will rise basically identical with heat exchanger, and after a period of time, due to surrounding air heat exchange
Reason, be reduced to again ambient air temperature, gas volume will significantly reduce, and cause aqueous reflux so that
When ambient temperature is below the freezing point, heat exchanger can freeze damage.
Therefore, the defect existed for the anti-freezing structure of air-conditioning in prior art, the invention discloses a kind of empty
The winterization system of adjusting system, it is connected with needs guard block, needs the liquid in guard block with removing,
Comprising:
Make described the first isolation needing guard block and the liquid in input fluid pipeline to be in isolation
Device, the first described isolating device is arranged to be needed between guard block and its fluid input port pipeline, control
System needs guard block and the fluid connection in input pipeline or isolation；
Make described the second isolation needing guard block and the liquid in outfan fluid pipeline to be in isolation
Device, the second described isolating device is arranged to be needed between guard block and its fluid output port pipeline, control
System needs guard block and fluid connection or isolation in its fluid output port pipeline；
Make to need guard block to isolate with liquid in its fluid output port pipeline by the input of gas and discharge or
The gas input discharger of connection, it includes that gas inputs outlet, when needs are antifreeze, by needing
Want input gas in guard block, it would be desirable to the liquid in guard block is discharged in fluid pipeline, at needs
When normal work starts, the gas being full of in making to need guard block is discharged system and closes gas passage, makes
In needing guard block hydraulically full and with fluid connection in input and outfan fluid pipeline；
And the control system of the isolating device work described in controlling, this control system makes to need parts to be protected
Connecting with liquid and switching under isolation two states.
Further, described gas input discharger is that gases at high pressure input discharger, passes through high pressure
The input of gas makes with discharge to need guard block isolate with liquid in its fluid pipeline or connect.
Further, described gases at high pressure input discharger includes pressurized gas source, three-way valve, three
Logical valve includes the first opening being connected with pressurized gas source, with the company needing guard block fluid input port
The second opening that adapter road is connected, is connected with air and makes to need liquid in guard block and fluid pipeline
In fluid connection time discharge the 3rd opening of discharge of system inner high voltage gas.
Further, the first described isolating device includes the first water valve, be located at the first water valve side and in order to
First water level inductor of induced liquid liquid level, the second described isolating device includes the second water valve, is located at
Second water valve side and the second water level inductor in order to induced liquid liquid level.
Further, the first described liquid level induction system and the second liquid level induction system are float-ball type water level
Induction installation.
A kind of water system air-conditioner, it has the winterization system of the air conditioning system as described in claim 1 ~ 5 is arbitrary.
A kind of antifreeze method of air conditioning system, described air conditioning system has as described in claim 1-5 is arbitrary
The winterization system of air conditioning system, described air conditioning system also includes air-conditioner host, water pump, compressor, needs
Guard block and with the fluid pipeline needing guard block to be connected, described antifreeze method comprises the steps:
S101: after air-conditioner host receives closedown system command, water pump and compressor quit work, controller
Control the first isolating device closedown, the second isolating device is opening, and gas input discharger is opened,
Gas input discharger, by inputting gas in needs guard block, makes to need the liquid in guard block
All it is scavenged in its outfan fluid pipeline；
S102: after arrived the second certain liquid level by press liquid, closes gas input discharger, makes gas
Body input channel is closed, and closes the second isolating device so that the first isolating device and the second isolating device it
Between form airtight space, need guard block and liquid to isolate；
S103: after air-conditioner host receives open system order, control system control the first isolating device still in
Closed mode, the second isolating device unlatching, gas input discharger is opened, and is discharged by gas input and fills
Putting and the gas needed in guard block is discharged system, make to need in guard block is hydraulically full；
S104: after arrived the first certain liquid level by press liquid, closes gas input discharger, makes gas
Body passing away is closed, and opens the first isolating device so that the first isolating device is equal with the second isolating device
In opening, the liquid being full of in needing guard block and the fluid connection in fluid pipeline, water pump and pressure
Contracting machine is opened, and system start-up also normally works.
Further, described gas input discharger is that gases at high pressure input discharger, passes through high pressure
The input of gas makes with discharge to need guard block isolate with liquid in its fluid pipeline or connect.
Further, described gases at high pressure input discharger includes pressurized gas source, three-way valve,
Three-way valve includes the first opening being connected with pressurized gas source, and needs guard block fluid input port
Connect the second opening of being connected of pipeline, be connected with air and make to need liquid in guard block and liquid line
The 3rd opening of the discharge of system inner high voltage gas is discharged during fluid connection in road.Described step S101 is led to
Cross gas input discharger to open, control first opening being connected with pressurized gas source of three-way valve,
The second opening in communication being connected with the connection pipeline needing guard block fluid input port, protects to needs
Input gases at high pressure in parts；Described step S103 controls gas input discharger open, control threeway
Make being connected with air of valve to need to discharge system when liquid in guard block and fluid connection in fluid pipeline
3rd opening of the discharge of system inner high voltage gas, is connected with the connection pipeline needing guard block fluid input port
The second logical opening in communication, after making to need the gases at high pressure discharge system in guard block and close the 3rd and open
Mouthful.
Further, second described in described step S102, S104, the first liquid level are set in advance
Second level setpoint, the first level setpoint, by the second water level inductor sense in described step S102
Know by whether press liquid arrives the second level setpoint；By the first water level inductor in described step S104
Whether perception is arrived the first level setpoint by press liquid.
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 in detail
Thin description, it is clear that described embodiment is only a part of embodiment of the present invention rather than whole
Embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making creative work
On the premise of the every other embodiment that obtained, broadly fall into the scope of protection of the invention.
As it is shown on figure 3, the structural representation of the winterization system that Fig. 3 is air conditioning system of the present invention.This air-conditioning system
The winterization system of system is connected with needs guard block 4 in actual applications, and Main Function is to remove needs
Liquid 7 in guard block 4.This winterization system includes that the first isolating device, the second isolating device, gas are defeated
Enter the control system 3 that the isolating device described in discharger and control works.Wherein, the first isolating device makes
Described needing the liquid in guard block and input fluid pipeline to be in isolation, the first isolating device sets
It is placed in and needs between guard block and its fluid input port pipeline, control to need guard block and input pipeline
Interior fluid connection or isolation；Second isolating device make described need guard block and outfan fluid pipeline in
Liquid be in isolation, the second isolating device is arranged at needs guard block and its fluid output port pipeline
Between, control to need guard block and fluid connection or isolation in its fluid output port pipeline；By gas
Input and discharge the gas input making to need guard block to isolate with liquid in its fluid output port pipeline or connect
Discharger, it includes that gas inputs outlet, when needs are antifreeze, by defeated in needs guard block
Enter gas, it would be desirable to the liquid in guard block is discharged in fluid pipeline, when normally work starts needs,
The gas being full of in making to need guard block is discharged system and closes gas passage, fills in making to need guard block
Full liquid and with fluid connection in input and outfan fluid pipeline；
Control system 3 makes to need parts to be protected connecting with liquid and switching under isolation two states.
As it is shown on figure 3, the first isolating device includes the first water valve 1, it is located at the first water valve 1 side and in order to feel
Answer the first water level inductor 2 of liquid level.Second isolating device includes the second water valve 6, is located at the second water
Valve 6 side and the second water level inductor 5 in order to induced liquid liquid level.First liquid level induction system and second
Liquid level induction system is ball float induction installation.
Gas input discharger is that gases at high pressure discharge embedding device, by input and the discharge of gases at high pressure
Make to need guard block isolate with liquid in its fluid pipeline or connect.Gases at high pressure are discharged embedding device and are included
Pressurized gas source, three-way valve, three-way valve includes the first opening being connected with pressurized gas source, with need
That wants guard block fluid input port connects the second opening that pipeline is connected, and is connected with air and makes to need to protect
Discharge when protecting liquid in parts with fluid connection in fluid pipeline system inner high voltage gas discharge the 3rd
Opening.
The winterization system of the embodiment of the present invention can effectively prevent liquid from flowing backwards, and enhances the reliable of winterization system
Property, it is to avoid when ambient temperature is below the freezing point, need the frozen damage of guard block；And the embodiment of the present invention
Winterization system simple in construction, it is convenient that part is bought, and has saved cost.
In the winterization system of above-mentioned water system air-conditioner, need to protect device 4 to be usually heat exchanger or heater,
Also or any needs carry out protecting against the device of freeze damage, in this no limit；Water level sensor
Form can be float-ball type, electronic type or other can feed back the element of water surface site.
In the winterization system of above-mentioned water system air-conditioner, the gases at high pressure being passed through can be nitrogen, vent method
Have a lot, a nitrogen cylinder can be set or use gas pump, as long as gas can be pressed in fluid pipeline
And drain.
The operation principle of the winterization system of the air conditioning system of the embodiment of the present invention is: when needs are antifreeze, air-conditioning
Main frame can receive cut out system command, and water pump quits work with compressor, and the first water valve 1 cuts out, and opens three
First opening of logical valve 10, because this first opening is connected with pressurized gas source, the gases at high pressure of input
It is discharged to needing the liquid in guard block 4 in fluid pipeline, when the second water level inductor 5 perceives
It is forced out after liquid 7 arrives level setpoint, closes three-way valve 10；When again needing normally to work, empty
Adjust main frame when receiving open system order, open the second water valve 6, open the 3rd opening and the of three-way valve 10
Two openings, due to the discharge of gas, need the connection pipeline liquid of guard block 4 fluid output port to be input to
In needing guard block 4, when the first water level inductor 2 perceives the liquid level of liquid 7 higher than liquid level setting
After value, closing three-way valve 10, open the first water valve 1, liquid can be normally at guard block 4 and liquid line
Flow between road.
Compared with prior art, the invention has the beneficial effects as follows:
(1) can effectively prevent liquid from flowing backwards, it is to avoid when ambient temperature is below the freezing point, to need guard block
Frozen damage；
(2) the winterization system simple in construction of the embodiment of the present invention, part is bought convenient, has been saved cost.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment,
And without departing from the spirit or essential characteristics of the present invention, it is possible to realize in other specific forms
The present invention.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and right and wrong
Restrictive, the scope of the present invention is limited by claims rather than described above, it is intended that will fall
All changes in the implication of equivalency and scope of claim are included in the present invention.Should will not weigh
Any reference during profit requires is considered as limiting involved claim.
Moreover, it will be appreciated that although this specification is been described by according to embodiment, but the most each enforcement
Mode only comprises an independent technical scheme, and this narrating mode of description is only for clarity sake,
Those skilled in the art should be using description as an entirety, and the technical scheme in each embodiment can also be through
Appropriately combined, form other embodiments that it will be appreciated by those skilled in the art that.
Claims (8)
1. a winterization system for air conditioning system, it is connected with needs guard block, needs protection to remove
Liquid in parts, it is characterised in that: comprising:
Make described need the liquid in guard block and input fluid pipeline be in the first of isolation every
From device, the first described isolating device is arranged to be needed between guard block and its fluid input port pipeline,
Control to need guard block and the fluid connection in input pipeline or isolation；
Make described need the liquid in guard block and outfan fluid pipeline be in the second of isolation every
From device, the second described isolating device is arranged to be needed between guard block and its fluid output port pipeline,
Control to need guard block and fluid connection or isolation in its fluid output port pipeline；
Input and discharge by gas make to need guard block to isolate with liquid in its fluid output port pipeline
Or the gas of connection inputs discharger, it includes that gas inputs outlet,
When needs are antifreeze, after air-conditioner host receives closedown system command, water pump and compressor quit work,
Controller controls the first isolating device cut out, the second isolating device is opening, and dress is discharged in gas input
Putting unlatching, gas input discharger, by inputting gas in needs guard block, makes to need protection portion
Liquid in part is all scavenged in its outfan fluid pipeline；When being arrived the second predetermined liquid by press liquid
Behind face, close gas input discharger, make gas input passage close, and close the second isolating device,
Make to be formed between the first isolating device and the second isolating device airtight space, need guard block and liquid
Body is isolated；
When normally work starts needs, after air-conditioner host receives open system order, control system controls
First isolating device is still in closed mode, and the second isolating device is opened, and gas input discharger is opened,
By gas input discharger, the gas needed in guard block is discharged system, make to need guard block
Interior is hydraulically full；After arrived the first predetermined liquid level by press liquid, close gas input discharger,
Make gas outlet channels close, and open the first isolating device so that the first isolating device and the second isolation
Device, all in opening, needs liquid and the fluid connection in fluid pipeline being full of in guard block,
Water pump and compressor are opened, and system start-up also normally works；
Described the second liquid level, the first liquid level are that the second level setpoint set in advance, the first liquid level set
Definite value；
And the control system of the isolating device work described in controlling, this control system makes to need portion to be protected
Part is connecting with liquid and is switching under isolation two states.
2. the winterization system of air conditioning system as claimed in claim 1, it is characterised in that: described gas
Input discharger is that gases at high pressure input discharger, and input and discharge by gases at high pressure make needs
Guard block is isolated with liquid in its fluid pipeline or connects.
3. the winterization system of air conditioning system as claimed in claim 2, it is characterised in that: described high pressure
Gas input discharger includes pressurized gas source, three-way valve, and three-way valve includes and pressurized gas source
The first opening being connected, second be connected with the connection pipeline needing guard block fluid input port opens
Mouthful, it is connected with air, row when making to need liquid in guard block and fluid connection in fluid pipeline
Go out the 3rd opening of system inner high voltage gas.
4. the winterization system of air conditioning system as claimed in claim 3, it is characterised in that: described first
Isolating device includes the first water valve, is located at the first water valve side and the first water level in order to induced liquid liquid level
Induction installation, the second described isolating device includes the second water valve, is located at the second water valve side and in order to feel
Answer the second water level inductor of liquid level.
5. the winterization system of air conditioning system as claimed in claim 4, it is characterised in that: described first
Water level inductor and the second water level inductor are float-ball type water level inductor.
6. a water system air-conditioner, it is characterised in that: it has the sky as described in Claims 1 to 5 is arbitrary
The winterization system of adjusting system.
7. the antifreeze method of an air conditioning system, it is characterised in that: described air conditioning system has such as right
Require the winterization system of air conditioning system described in 4 or 5, described air conditioning system also include air-conditioner host,
Water pump, compressor, need guard block and with the fluid pipeline needing guard block to be connected, described antifreeze
Method comprises the steps:
S101: after air-conditioner host receives closedown system command, water pump and compressor quit work, and control
Device controls the first isolating device cut out, the second isolating device is opening, and gas input discharger is opened
Opening, gas input discharger is by inputting gas, in making to need guard block in needs guard block
Liquid be all scavenged in its outfan fluid pipeline；
S102: after arrived the second predetermined liquid level by press liquid, closes gas input discharger, makes
Gas input passage is closed, and closes the second isolating device so that the first isolating device and the second isolation dress
Form airtight space between putting, need guard block to isolate with liquid；
S103: after air-conditioner host receives open system order, control system controls the first isolating device still
In closed mode, the second isolating device is opened, and gas input discharger is opened, by gas input row
Going out device and the gas needed in guard block is discharged system, make to need in guard block is hydraulically full；
S104: after arrived the first predetermined liquid level by press liquid, closes gas input discharger, makes
Gas outlet channels is closed, and opens the first isolating device so that the first isolating device and the second isolation dress
Put all in opening, the liquid being full of in needing guard block and the fluid connection in fluid pipeline, water
Pump and compressor are opened, and system start-up also normally works.
8. the antifreeze method of air conditioning system as claimed in claim 7, it is characterised in that: described step
The second liquid level described in S102, S104, the first liquid level be the second level setpoint set in advance,
Whether one level setpoint, arrived by press liquid by the second water level inductor perception in described step S102
Reach the second level setpoint；Described step S104 by the first water level inductor perception by press liquid is
No arrival the first level setpoint.
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105564629A (en) * | 2016-01-13 | 2016-05-11 | 江苏兆胜空调有限公司 | Automatic safety control method for anti-freezing of marine all-fresh-air air conditioner |
| CN106482323A (en) * | 2016-12-09 | 2017-03-08 | 广东高而美制冷设备有限公司 | A kind of double-tube heat exchanger and air-conditioning |
| CN107477664A (en) * | 2017-07-10 | 2017-12-15 | 珠海格力电器股份有限公司 | A kind of water system empties control method and device |
| CN107806724B (en) * | 2017-10-23 | 2023-07-04 | 珠海格力电器股份有限公司 | Water system protection device, control method, water system and air conditioner |
| CN113167492B (en) * | 2018-12-18 | 2023-03-10 | 三菱电机株式会社 | Air conditioning apparatus |
| CN112460739A (en) * | 2020-11-19 | 2021-03-09 | 珠海格力电器股份有限公司 | Anti-freezing device and control method thereof, heat pump unit and air conditioner |
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| DE10208242A1 (en) * | 2002-02-26 | 2003-09-04 | Klaus-Peter Schmidt | Method of filling a hot-water heating system, involves exhausting air from heating system by electric vacuum pump to a negative pressure of 10 mbar and then filling it with water |
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