CN104048406A - Four-way valve safety control system and control method as well as water heater - Google Patents
Four-way valve safety control system and control method as well as water heater Download PDFInfo
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- CN104048406A CN104048406A CN201410228429.6A CN201410228429A CN104048406A CN 104048406 A CN104048406 A CN 104048406A CN 201410228429 A CN201410228429 A CN 201410228429A CN 104048406 A CN104048406 A CN 104048406A
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Abstract
The invention provides a four-way valve safety control system and a four-way valve safety control method as well as a water heater. The four-way valve safety control method comprises the following steps: a first valve port of the four-way valve is controlled to be communicated with a second valve port of the four-way valve, a third valve port of the four-way valve is controlled to be communicated with a fourth valve port of the four-way valve, and the water heater is enabled to be in a refrigeration state for T1; the first valve port of the four-way valve is controlled to be communicated with the fourth valve port of the four-way valve, a second valve port of the four-way valve is controlled to be communicated with the third valve port of the four-way valve, and the water heater is enabled to be in a heating condition for T2; the first valve port of the four-way valve is connected with a high-pressure end of a compressor, the second valve port of the four-way valve is connected with an outdoor unit, the third valve port of the four-way valve is connected with a low-pressure end of the compressor, and the fourth valve port of the four-way valve is connected with a water tank; the steps are repeated. According to the invention, the blocking failure of the four-way valve can be prevented effectively, and the operating reliability of the four-way valve is improved.
Description
Technical field
The present invention relates to air-conditioner field, in particular to a kind of cross valve safety control system and control method, water heater.
Background technology
Air-source water heater is as " the 4th generation " water heater, since releasing market, just with its energy-conservation, safe feature, be subject to more and more consumers' favor, its operation principle is: heat pump utilizes different these characteristics of cold-producing medium its phase transition temperature under different pressures, and the heat of low-temperature heat source is delivered to high temperature heat source.Air energy heat pump water heater utilizes heat pump principle, take and consumes a part of electric energy as compensation, and by thermodynamic cycle, the low-grade heat source from environment (air) draw heat, is delivered in water, reaches the object of producing domestic hot-water.
Pot-type boiler, due to use, is all normal water heating substantially, and the in the situation that of normal water heating, a control end of cross valve is high pressure for a long time, and another control end is low pressure for a long time.
For long-term two cross valve valve ports in low-pressure state, between two low pressure valve ports that communicate, pressure reduction is very little, thereby (free material comprises some trickle materials that some fouls in system and system unit long-play parse to cause material free in system to accumulate in the seat hole place of low pressure valve port, clean system is non-existent completely), causing cross valve to stop up lost efficacy, normally water heating, causes user's complaint and needs repairing.
Summary of the invention
A kind of cross valve safety control system and control method, water heater are provided in the embodiment of the present invention, can effectively prevent that cross valve from stopping up inefficacy, the reliability while improving cross valve work.
For solving the problems of the technologies described above, the embodiment of the present invention provides a kind of cross valve safety control system, comprise: cross valve, the first valve port of cross valve is connected to the high-pressure side of compressor, the second valve port of cross valve is connected to off-premises station, the 3rd valve port of cross valve is connected to the low-pressure end of compressor, and the 4th valve port of cross valve is connected to water tank; Control device, be connected with cross valve, and control cross valve and commutate when heating state, make the first valve port be communicated to the second valve port, the 3rd valve port is communicated to the 4th valve port, and keeps the T1 time, then control cross valve commutates when refrigerating state, make the first valve port be communicated to the 4th valve port, the second valve port is communicated to the 3rd valve port, and keeps the T2 time.
As preferably, control device comprises timer and the pilot valve being connected with timer, and pilot valve is connected with cross valve, and timer is controlled the duty that pilot valve is adjusted cross valve.
As preferably, pilot valve comprises the first connector, the second connector, the 3rd connector and the 4th connector, the first connector is connected to the first valve port, the second connector is connected to the first control end of cross valve, the 3rd connector is connected to the 3rd valve port, and the 4th connector is connected to the second control end of cross valve.
As preferably, between pilot valve and cross valve, by capillary, be connected.
As preferably, T1<T2.
According to a further aspect in the invention, a kind of cross valve method of controlling security is provided, comprise: step S1: the first valve port of controlling cross valve is communicated to the second valve port of cross valve, the 3rd valve port of controlling cross valve is communicated to the 4th valve port of cross valve, make water heater in refrigerating state, and keep the T1 time; Step S2: the first valve port of controlling cross valve is communicated to the 4th valve port of cross valve, the second valve port of controlling cross valve is communicated with the 3rd valve port of knowing cross valve, makes water heater in heating state, and keeps the T2 time; Wherein, the first valve port of cross valve is connected to the high-pressure side of compressor, and the second valve port of cross valve is connected to off-premises station, and the 3rd valve port of cross valve is connected to the low-pressure end of compressor, and the 4th valve port of cross valve is connected to water tank; Repeat above-mentioned steps.
As preferably, step S1 comprises: the time to water heater in refrigerating state is carried out timing, and after water heater maintains the refrigerating state T1 time, controls water heater and enter the state of heating; Step S2 comprises: water heater is carried out to timing in heating the time of state, and maintain and control water heater after heating the state T2 time and enter refrigerating state at water heater.
As preferably, step S1 also comprises: when water heater maintained after the refrigerating state T1 time, control cross valve commutate by pilot valve, make water heater in heating state; Step S2 also comprises: when water heater maintains, heat after the state T2 time, control cross valve commutate by pilot valve, make water heater in refrigerating state.
In accordance with a further aspect of the present invention, provide a kind of water heater, comprised cross valve safety control system, this cross valve safety control system is above-mentioned cross valve safety control system.
The present invention at least has following beneficial effect:
Can effectively avoid cross valve to stop up, improve the cross valve of water heater and the reliability of unit work.
Accompanying drawing explanation
Fig. 1 is the cross valve safety control system of the embodiment of the present invention structural representation when heating state;
Fig. 2 is the cross valve safety control system of the embodiment of the present invention structural representation when refrigerating state;
Fig. 3 is the control principle drawing of the cross valve method of controlling security of the embodiment of the present invention.
Description of reference numerals
10, cross valve; 20, compressor; 30, off-premises station; 40, water tank; 50, pilot valve; 60, choke valve; D, the first valve port; E, the second valve port; S, the 3rd valve port; C, the 4th valve port; D, the first connector; E, the second connector; S, the 3rd connector; C, the 4th connector.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail, but not as a limitation of the invention.
Fig. 1 and Fig. 2 are the work structuring schematic diagrames of the cross valve safety control system of the embodiment of the present invention.As depicted in figs. 1 and 2, the cross valve safety control system of the embodiment of the present invention comprises cross valve 10 and control device: the first valve port D of cross valve 10 is connected to the high-pressure side of compressor 20, the second valve port E of cross valve 10 is connected to off-premises station 30, the 3rd valve port S of cross valve 10 is connected to the low-pressure end of compressor 20, and the 4th valve port C of cross valve 10 is connected to water tank 40; Control device is connected with cross valve 10, and control cross valve 10 and commutate when heating state, make the first valve port D be communicated to the second valve port E, the 3rd valve port S is communicated to the 4th valve port C, and keep the T1 time, then control cross valve 10 and commutate when refrigerating state, make the first valve port D be communicated to the 4th valve port C, the second valve port E is communicated to the 3rd valve port S, and keeps the T2 time.Preferably, T1<T2.
As shown in Figure 1, when using cross valve safety control system of the present invention to control the cross valve 10 of water heater, ordinary circumstance lower water-heater is all in heating state, now the second valve port E of cross valve 10 and the 3rd valve port S low pressure communicate, fluid pressure difference is between the two less, fluid mobility is poor, causes material free in system to accumulate in the second valve port E place.Free material comprises some trickle materials that some fouls in system and system unit long-play parse, and gets off easily to cause cross valve 10 to stop up for a long time and loses efficacy, normally water heatings.
As shown in Figure 2, in the application, pass through control device Sustainable Control water heater in refrigerating state, the long-term second valve port E in low pressure connected state of cross valve 10 is connected with the first valve port D, because the first valve port D is communicated with the high-pressure side of compressor 20, therefore the high-pressure flow state that makes the fluid at the second valve port E place be communicated with in the high-pressure side with compressor 20, compressor 20 pressure when operation is higher, just be easy to wash open accumulating in the capillary of the second valve port E junction of low-pressure side and the educt in the second valve port E originally, T1 commutates after the time again, make water heater in heating state, the normal water heating of water heater, after heating the state continuance T2 time, cross valve 10 commutates again, make water heater in refrigerating state, go round and begin again like this in order to guarantee hot water, the hot water time will be much larger than the cold water time, just can make all the time high-pressure fluid repeatedly the second valve port E and the capillary that is connected with the second valve port E be carried out to fluid impact, thereby can effectively avoid educt to assemble capillary and the first valve port D that stops up the first valve port D place, prevent that cross valve 10 from stopping up inefficacy, effectively improves the reliability of cross valve 10 and unit.
The pilot valve 50 that control device comprises timer and is connected with timer, pilot valve 50 is connected with cross valve 10, and timer is controlled the duty that pilot valve 50 is adjusted cross valve 10.Timer at water heater after heating the time remaining T2 time of state, send signal, make control device control pilot valve 50 commutations, thereby by pilot valve 50, make cross valve 10 commutations, make water heater in refrigerating state, now timer continues timing, when water heater is after the time remaining T1 time in refrigerating state, timer sends signal, makes control device control pilot valve 50 commutations, makes water heater again in normally heating state.
In the present embodiment, pilot valve 50 comprises the first connector d, the second connector e, the 3rd connector s and the 4th connector c, the first connector d is connected to the first valve port D, the second connector e is connected to the first control end of cross valve 10, the 3rd connector s is connected to the 3rd valve port S, and the 4th connector c is connected to the second control end of cross valve 10.
In the present embodiment, between each connector of pilot valve 50 and each valve port of cross valve 10, by capillary, be connected, between water tank 40 and off-premises station 30, be also provided with choke valve 60.
Fig. 3 is the cross valve method of controlling security according to the embodiment of the present invention, in conjunction with referring to shown in Fig. 1 and Fig. 2, this cross valve method of controlling security comprises: the first valve port D that controls cross valve 10 is communicated to the second valve port E of cross valve 10, the 3rd valve port S that controls cross valve 10 is communicated to the 4th valve port C of cross valve 10, make water heater in refrigerating state, and keep the T1 time; Then the first valve port D that controls cross valve 10 is communicated to the 4th valve port C of cross valve 10, and the second valve port E that controls cross valve 10 is communicated with the 3rd valve port S that knows cross valve 10, makes water heater in heating state, and keeps the T2 time.Preferably, T1<T2.Wherein, the first valve port D of cross valve 10 is connected to the high-pressure side of compressor 20, and the second valve port E of cross valve 10 is connected to off-premises station 30, and the 3rd valve port S of cross valve 10 is connected to the low-pressure end of compressor 20, and the 4th valve port C of cross valve 10 is connected to water tank 40; Then repeat above-mentioned steps.
When the duration of water heater is carried out to switching controls, need to be by time sets such as timers to water heater the time in refrigerating state carry out timing, and after water heater maintains the refrigerating state T1 time, control water heater and enter the state of heating; And by time sets such as timers, water heater is carried out to timing in heating the time of state, and maintain and control water heater after heating the state T1 time and enter refrigerating state at water heater.
When water heater maintained after the refrigerating state T1 time, by pilot valve 50, control cross valve 10 commutations, make water heater in heating state; When water heater maintains, heat after the state T2 time, by pilot valve 50, control cross valve 10 commutations, make water heater in refrigerating state.
Below the security control process of cross valve safety control system of the present invention is illustrated:
As shown in Figure 1, the in the situation that of the normal water heating of water heater, the solenoid of pilot valve 50 is in off-position, now, the first valve port D of cross valve 10 and the 4th valve port C connect, for high-pressure section, the second valve port E and the 3rd valve port S connect, for low-pressure section, the first control end of cross valve 10 is low pressure simultaneously, and the second control end is high pressure, water heater normally heats, fluid in the second valve port E and the 3rd valve port S is low-pressure state, and flowing pressure is little, and educt easily accumulates in the second valve port E position.
As shown in Figure 2, after water heating a period of time (being herein the T2 time), cross valve 10 is commutated, now the solenoid of pilot valve 50 is in "on" position, the first connector d of pilot valve 50 is communicated with the second connector e, the first connector d of pilot valve 50 is connected to the high-pressure side of compressor 20, making the first control end of the cross valve 10 that the second connector e with pilot valve 50 connects is high pressure, under the effect of high-pressure fluid, the spool of cross valve 10 moves to right, the first valve port D of cross valve 10 and the second valve port E connect, for high-pressure section, the 3rd valve port S and the 4th valve port C connect, for low-pressure section.Now because the second valve port E of cross valve and the first valve port D of cross valve 10 communicate as high pressure, compressor pressure when operation is higher, be easy to just the educt accumulating in script the second valve port E of low-pressure side and the capillary at the second valve port E place be washed open, make the capillary at the second valve port E and the second valve port E place all keep unimpeded, T1 after the time cross valve 10 commutate again, make water heater still in heating state, go round and begin again like this, just can effectively avoid long-time the second valve port E due to cross valve 10 is low pressure, and and the pressure reduction at the 3rd valve port S place is very little, flow difficulties, cause educt to assemble the situation of stopping up cross valve 10, effectively improve the reliability of cross valve and unit.
According to the water heater of the embodiment of the present invention, comprise cross valve safety control system, this cross valve safety control system is above-mentioned cross valve safety control system.
Certainly, be more than the preferred embodiment of the present invention.It should be pointed out that for those skilled in the art, not departing under the prerequisite of basic principle of the present invention, can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.
Claims (9)
1. a cross valve safety control system, is characterized in that, comprising:
Cross valve (10), the first valve port of described cross valve (10) is connected to the high-pressure side of compressor (20), the second valve port of described cross valve (10) is connected to off-premises station (30), the 3rd valve port of described cross valve (10) is connected to the low-pressure end of described compressor (20), and the 4th valve port of described cross valve (10) is connected to water tank (40);
Control device, be connected with described cross valve (10), and control described cross valve (10) and commutate when heating state, make described the first valve port be communicated to described the second valve port, described the 3rd valve port is communicated to described the 4th valve port, and keeps the T1 time, then control described cross valve (10) commutates when refrigerating state, make described the first valve port be communicated to described the 4th valve port, described the second valve port is communicated to described the 3rd valve port, and keeps the T2 time.
2. cross valve safety control system according to claim 1, it is characterized in that, the pilot valve (50) that described control device comprises timer and is connected with described timer, described pilot valve (50) is connected with described cross valve (10), and described timer is controlled the duty that described pilot valve (50) is adjusted described cross valve (10).
3. cross valve safety control system according to claim 2, it is characterized in that, described pilot valve (50) comprises the first connector, the second connector, the 3rd connector and the 4th connector, described the first connector is connected to described the first valve port, described the second connector is connected to the first control end of described cross valve (10), described the 3rd connector is connected to described the 3rd valve port, and described the 4th connector is connected to the second control end of described cross valve (10).
4. cross valve safety control system according to claim 3, is characterized in that, between described pilot valve (50) and described cross valve (10), by capillary, is connected.
5. cross valve safety control system according to claim 1, is characterized in that T1<T2.
6. a cross valve method of controlling security, is characterized in that, comprising:
Step S1: the first valve port of controlling cross valve (10) is communicated to the second valve port of described cross valve (10), the 3rd valve port of controlling described cross valve (10) is communicated to the 4th valve port of described cross valve (10), make water heater in refrigerating state, and keep the T1 time;
Step S2: the first valve port of controlling described cross valve (10) is communicated to the 4th valve port of described cross valve (10), the second valve port of controlling described cross valve (10) is communicated with the 3rd valve port of knowing described cross valve (10), make water heater in heating state, and keep the T2 time;
Wherein, the first valve port of described cross valve (10) is connected to the high-pressure side of compressor (20), the second valve port of described cross valve (10) is connected to off-premises station (30), the 3rd valve port of described cross valve (10) is connected to the low-pressure end of described compressor (20), and the 4th valve port of described cross valve (10) is connected to water tank (40);
Repeat above-mentioned steps.
7. cross valve method of controlling security according to claim 6, is characterized in that,
Described step S1 comprises: the time to described water heater in refrigerating state is carried out timing, and after described water heater maintains the refrigerating state T1 time, controls described water heater and enter the state of heating;
Described step S2 comprises: described water heater is carried out to timing in heating the time of state, and maintain and control described water heater after heating the state T2 time and enter refrigerating state at described water heater.
8. cross valve method of controlling security according to claim 7, it is characterized in that, described step S1 also comprises: when described water heater maintained after the refrigerating state T1 time, by pilot valve (50), control described cross valve (10) commutation, make described water heater in heating state;
Described step S2 also comprises: when described water heater maintains, heat after the state T2 time, by described pilot valve (50), control described cross valve (10) commutation, make described water heater in refrigerating state.
9. a water heater, comprises cross valve safety control system, it is characterized in that, described cross valve safety control system is the cross valve safety control system described in any one in claim 1 to 5.
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| CN201410228429.6A CN104048406A (en) | 2014-05-27 | 2014-05-27 | Four-way valve safety control system and control method as well as water heater |
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| CN201410228429.6A CN104048406A (en) | 2014-05-27 | 2014-05-27 | Four-way valve safety control system and control method as well as water heater |
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Cited By (4)
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| CN105422912A (en) * | 2015-12-25 | 2016-03-23 | 珠海格力电器股份有限公司 | Four-way valve and air conditioning system |
| CN106801749A (en) * | 2017-01-17 | 2017-06-06 | 南京腾亚睿尼环境科技有限公司 | A kind of electromagnetism four-way reversing valve |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
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Cited By (7)
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| US11254183B2 (en) | 2017-08-25 | 2022-02-22 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US11919363B2 (en) | 2017-08-25 | 2024-03-05 | Dometic Sweden Ab | Recreational vehicle, cooling device, controlling system and method for controlling the cooling device |
| US10941955B2 (en) | 2017-10-27 | 2021-03-09 | Dometic Sweden Ab | Systems, methods, and apparatuses for providing communications between climate control devices in a recreational vehicle |
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Application publication date: 20140917 |