CN109631312A - Anti-freezing gas water heater and control method thereof - Google Patents
Anti-freezing gas water heater and control method thereof Download PDFInfo
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- CN109631312A CN109631312A CN201910003929.2A CN201910003929A CN109631312A CN 109631312 A CN109631312 A CN 109631312A CN 201910003929 A CN201910003929 A CN 201910003929A CN 109631312 A CN109631312 A CN 109631312A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 400
- 238000007710 freezing Methods 0.000 title claims abstract description 39
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005484 gravity Effects 0.000 claims description 5
- 230000008447 perception Effects 0.000 claims description 5
- 230000008014 freezing Effects 0.000 abstract description 9
- 238000010438 heat treatment Methods 0.000 abstract description 8
- 239000007789 gas Substances 0.000 description 38
- 230000002528 anti-freeze Effects 0.000 description 11
- 230000009471 action Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 5
- 230000006870 function Effects 0.000 description 4
- 239000000567 combustion gas Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000007717 exclusion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
- F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fuel Cell (AREA)
Abstract
The invention discloses an anti-freezing gas water heater and a control method thereof, wherein the gas water heater comprises a heat exchanger, a water inlet pipe and a water outlet pipe, the heat exchanger is respectively connected with the water inlet pipe and the water outlet pipe, external cold water enters the heat exchanger through the water inlet pipe for heating and then flows out through the water outlet pipe, a first temperature control valve and a second temperature control valve are respectively arranged on the water inlet pipe and the water outlet pipe of the heat exchanger for opening or closing corresponding pipelines according to the temperature of the water in the pipes so as to determine whether to discharge the residual water in the water inlet pipe, the water outlet pipe and the heat exchanger outwards, the residual water in the gas water heater and the pipelines can be quickly and automatically emptied, and the freezing crack of the water pipes is avoided so as to.
Description
Technical field
The present invention relates to kitchen appliance technical field more particularly to a kind of anti-freezing gas water heater and its control methods.
Background technique
Gas heater has become the indispensable kitchen living electric apparatus of Modern Family, gas heater be we provide
Water heater needed for life.But in winter, especially north overwhelming majority area, the temperature in winter are generally lower than 0 DEG C.Work as combustion gas
Water heater is in off working state, when being filled with cold water in water circuit system, because gas heater complete machine is mounted on outside balcony or outer
Boundary's cold wind is formed by smoke exhaust pipe to be flowed backward, and then leads to water heater internal temperature rapid drawdown, pipeline freezing and expansion, easily generator tube
Road bursting by freezing and leak, cause the economic loss of user.
In the related technology, there are two types of the antifreezing measures that gas heater generallys use:
One is using hand-actuated form, gas heater when not in use, by manually water inlet and water outlet
Mouth is opened, and the water in heat exchanger in gas water heater is discharged outward completely, but this mode is more troublesome, if user
Have little time to discharge water or forget in the case of discharging water, will also result in because temperature reduction leads to the feelings of heat exchanger water pipe from freezing crack due to leak
Condition.
Second is that water route temperature is detected by temperature controller using electric heating assembly, and when it is lower than closing point temperature, heating group
Part carries out more comprehensive quickly heating to water circuit system, and this method antifreezing effect is preferable, and the antifreeze of mainstream is arranged at this stage
It applies, but this measure is a kind of energy consumption measure, in heating process repeatedly, needs to waste a large amount of electric energy.
Summary of the invention
The present invention is directed to one of solve the problems, such as present in existing the relevant technologies at least to a certain extent, for this purpose, this hair
Bright to propose a kind of anti-freezing gas water heater, structure is simple, remaining water that can rapidly in automatic-discharging gas heater pipeline, keeps away
Exempt from water pipe from freezing crack to reach antifreeze purpose.
In addition, the invention also provides a kind of control method of anti-freezing gas water heater, it is simple and effective, so that combustion gas is hot
Hydrophone has antifreeze function.
Above-mentioned first purpose is achieved by the following technical solution:
A kind of anti-freezing gas water heater, including heat exchanger, water inlet pipe and outlet pipe, the heat exchanger respectively with it is described
Water inlet pipe is connected with the outlet pipe, and external cold water enters after the heat exchanger is heated through the water inlet pipe through described
Outlet pipe flows out outward, further includes having the first thermostat valve, the second thermostat valve, the first drainpipe and the second drainpipe, and described first
Thermostat valve is set between the water inlet pipe and the heat exchanger, first thermostat valve at least have the first water inlet valve port,
First water outlet valve port and the first drain valve mouth, wherein the first water inlet valve port is connect with the water inlet pipe, first water outlet
Valve port is connect with the heat exchanger, and the first drain valve mouth is connect with first drainpipe；
Second thermostat valve is set between the heat exchanger and the outlet pipe, and second thermostat valve at least has
There are the second water inlet valve port, the second water outlet valve port and the second drain valve mouth, wherein the second water inlet valve port and the heat exchanger
Connection, the second water outlet valve port are connect with the outlet pipe, and the second drain valve mouth is connect with second drainpipe.
In some embodiments, first thermostat valve has the first commutation temperature, when flowing into first thermostat valve
When the water temperature of the inside is higher than the first commutation temperature, inside first thermostat valve for connect the first water inlet valve port with
The channel of the first water outlet valve port is switched on, and for connecting the first drain valve mouth and institute inside first thermostat valve
The channel for stating the first water outlet valve port is truncated；
When flowing into the water temperature inside first thermostat valve lower than the first commutation temperature, in first thermostat valve
Face is used to connect the first drain valve mouth and the channel of the first water outlet valve port is switched on, and inside first thermostat valve
Channel for connecting the first water inlet valve port and the first water outlet valve port is truncated.
In some embodiments, second thermostat valve has the second commutation temperature, when flowing into second thermostat valve
When the water temperature of the inside is higher than the second commutation temperature, inside second thermostat valve for connect the second water inlet valve port with
The channel of the second water outlet valve port is switched on, and for connecting the second water inlet valve port and institute inside second thermostat valve
The channel for stating the second drain valve mouth is truncated；
When flowing into the water temperature inside second thermostat valve lower than the second commutation temperature, in second thermostat valve
Face is used to connect the second water inlet valve port and the channel of the second drain valve mouth is switched on, and inside second thermostat valve
Channel for connecting the second water inlet valve port and the second water outlet valve port is truncated.
In some embodiments, pressure water storage case is provided between first thermostat valve and the heat exchanger.
In some embodiments, the position of the pressure water storage case is higher than the position of the heat exchanger.
In some embodiments, the pressure water storage case has inlet and outlet, wherein the water inlet is located at
The top of the pressure water storage case and connect with the first of first thermostat valve the water outlet valve port, described in the water outlet is located at
It the bottom of pressure water storage case and is connect with the heat exchanger.
In some embodiments, first thermostat valve and second thermostat valve are all made of mechanical temperature control threeway
Valve.
Above-mentioned second purpose is achieved by the following technical solution:
A kind of control method of anti-freezing gas water heater is applied to gas heater as described above, the antifreeze combustion gas
The control method of water heater includes the following steps:
The first thermostat valve perception flows into the water temperature inside first thermostat valve, while second thermostat valve perceives
Flow into the water temperature inside second thermostat valve；
Judge whether the water temperature flowed into inside first thermostat valve and the water temperature flowed into inside second thermostat valve divide
Not Di Yu it is described first commutation temperature, it is described second commutation temperature, according to judging result open or close corresponding pipeline with certainly
It is fixed whether the remaining water in the water inlet pipe, the outlet pipe and the heat exchanger to be discharged outward.
In some embodiments, when flowing into inside the water temperature inside first thermostat valve and second thermostat valve
Water temperature is respectively lower than the first commutation temperature, the second commutation temperature, and first thermostat valve opens first draining
Valve port and close it is described first water inlet valve port be connected the first drain valve mouth and it is described first water outlet valve port between channel,
Simultaneously second thermostat valve open the second drain valve mouth and close the second water outlet valve port be connected described second into
Channel between water valve mouth and the second water outlet valve port, and then open between first drainpipe and second drainpipe
Channel, under the action of the pressure water storage case water gravity and air pressure, by the pressure water storage case, the heat exchanger and
Remaining water in the outlet pipe is discharged outward by second drainpipe.
In some embodiments, when flowing into inside the water temperature inside first thermostat valve and second thermostat valve
When water temperature is respectively higher than the first commutation temperature, the second commutation temperature, first thermostat valve open described first into
Water valve mouth and close first drain valve so that the channel between the first water inlet valve port and the first water outlet valve port is connected,
Simultaneously second thermostat valve open the second water outlet valve port and close the second drain valve mouth be connected described second into
Channel between water valve mouth and the second water outlet valve port, and then close between first drainpipe and second drainpipe
Channel.
Compared with prior art, the present invention at least having the effect that
1, anti-freezing gas water heater of the invention, structure is simple, can rapidly automatic-discharging gas heater and pipeline
In remaining water, avoid water pipe from freezing crack to reach antifreeze purpose.
2, the control method of anti-freezing gas water heater of the present invention, simple and effective, environmental protection and energy saving, so that gas and hot water utensil
There is antifreeze function.
Other beneficial outcomes of the invention will be explained in conjunction with attached drawing in a specific embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of anti-freezing gas water heater in the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of anti-freezing gas water heater in the embodiment of the present invention two；
Fig. 3 is the flow chart of the control method of anti-freezing gas water heater in the embodiment of the present invention three.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
Embodiment one: it is as shown in Figure 1, the present embodiment provides a kind of anti-freezing gas water heater, including heat exchanger 1, into
Water pipe 2 and outlet pipe 3, heat exchanger 1 are connect with water inlet pipe 2 and outlet pipe 3 respectively, and external cold water enters heat through water inlet pipe 2
Exchanger 1 flows out after being heated through outlet pipe 3 outward, further includes having the first thermostat valve 4, the second thermostat valve 5, the first drainpipe
6 and second drainpipe 7, the first thermostat valve 4 be set between water inlet pipe 2 and heat exchanger 1, the first thermostat valve 4 at least has the
One water inlet valve port 41, first is discharged valve port 42 and the first drain valve mouth 43, wherein the first water inlet valve port 41 is connect with water inlet pipe 2,
First water outlet valve port 42 is connect with heat exchanger 1, and the first drain valve mouth 43 is connect with the first drainpipe 6；The setting of second thermostat valve 5
Between heat exchanger 1 and outlet pipe 3, at least there is the second thermostat valve 5 second water inlet valve port 51, second to be discharged valve port 52 and the
Two draining valve ports 53, wherein the second water inlet valve port 51 is connect with heat exchanger 1, the second water outlet valve port 52 is connect with outlet pipe 3, the
Two draining valve ports 53 are connect with the second drainpipe 7.
The anti-freezing gas water heater of the present embodiment comprising heat exchanger 1, water inlet pipe 2, outlet pipe 3, the first thermostat valve 4,
Second thermostat valve 5, the first drainpipe 6 and the second drainpipe 7, heat exchanger 1 are connect with water inlet pipe 2 and outlet pipe 3 respectively, external
Cold water enters after heat exchanger 1 is heated through water inlet pipe 2 to flow out outward through outlet pipe 3 to provide hot water for user terminal, the
One thermostat valve 4 is arranged in the water inlet end of heat exchanger 1 and between water inlet pipe 2 and heat exchanger 1, and the setting of the second thermostat valve 5 exists
The water outlet of heat exchanger 1 and between heat exchanger 1 and outlet pipe 3, passes through the water inlet pipe 2 and outlet pipe 3 in heat exchanger 1
On be respectively arranged with the first thermostat valve 4 and the second thermostat valve 5 to form the water circuit system of water heater, the first thermostat valve 4 is threeway
There is valve the first water inlet valve port 41, first to be discharged valve port 42 and the first drain valve mouth 43, wherein the first water inlet valve port 41 with into
The connection of water pipe 2 with by external cold water toward importing inside the first thermostat valve 4, the first water outlet valve port 42 connect with heat exchanger 1 with
There is provided cold water for heat exchanger 1, the first drain valve mouth 43 connect with the first drainpipe 6 with by the remaining water in water inlet pipe 2 toward outlet
Out；Second thermostat valve 5 is triple valve, and there is the second water inlet valve port 51, second to be discharged valve port 52 and the second drain valve mouth 53,
In the second water inlet valve port 51 connect with heat exchanger 1 with by the water after over-heat-exchanger 1 is heated toward the second thermostat valve 5
Inside imports, and the second water outlet valve port 52 is connect to provide hot water, the second drain valve mouth 53 and second row for user terminal with outlet pipe 3
Water pipe 7 is connected so that the remaining water in outlet pipe 3 to be discharged outward.Its structure is simple, by the water inlet pipe 2 in heat exchanger 1 and goes out
The first thermostat valve 4 and the second thermostat valve 5 are respectively arranged on water pipe 3 can be rapidly in automatic-discharging gas heater and pipeline
Yu Shui avoids water pipe from freezing crack to reach antifreeze purpose.
Further, the first thermostat valve 4 has the first commutation temperature, when the water temperature for flowing into 4 the inside of the first thermostat valve is higher than
When the first commutation temperature, for connecting the channel quilt of the first water inlet valve port 41 and the first water outlet valve port 42 inside the first thermostat valve 4
Conducting, and be truncated inside the first thermostat valve 4 for connecting the channel of the first drain valve mouth 43 and the first water outlet valve port 42；Work as stream
When water temperature into 4 the inside of the first thermostat valve is lower than the first commutation temperature, for connecting the first drain valve mouth inside the first thermostat valve 4
43 and first water outlet valve port 42 channel be switched on, and inside the first thermostat valve 4 for connect first water inlet valve port 41 and first
The channel of water outlet valve port 42 is truncated, and structure is simple, reduces the assembling cost of product.
In the present embodiment, the first thermostat valve 4 has preset first commutation temperature, and the first commutation temperature is preferably preset as
4 DEG C, but 4 DEG C are not limited to, it can also be preset as other more particularly suitable temperature according to actual needs.When flowing into the first thermostat valve 4
When the actual water temperature in face is higher than the first commutation temperature, the first water inlet valve port 41 and the first water outlet valve port 42 are opened with by the first temperature control
It is connected for connecting the first water inlet valve port 41 with the first water outlet valve port 42 inside valve 4, and the first drain valve mouth 43 of closing is with will be warm
Channel truncation between exchanger 1 and the first drainpipe 6, so that external cold water is warm by first after being entered by water inlet pipe 2
Control valve 4 supplies water in heat exchanger 1,；When the actual water temperature and extraneous actual temperature that flow into 4 the inside of the first thermostat valve are below
When the first commutation temperature, the first water inlet valve port 41 and the first drain valve mouth 43 are opened that will be used to connect inside the first thermostat valve 4
Channel conductive between first water inlet valve port 41 and the first drain valve mouth 43, and the first water outlet valve port 42 is closed with by the first temperature control
It is truncated inside valve 4 for connecting the channel between the first water inlet valve port 41 and the first water outlet valve port 42, so that heat exchanger 1
Inside is connected to by the first drainpipe 6 with outside.
Specifically, the second thermostat valve 5 has the second commutation temperature, when the water temperature for flowing into the inside of the second thermostat valve 5 is higher than the
When two commutation temperature, led inside the second thermostat valve 5 for connecting the channel of the second water inlet valve port 51 and the second water outlet valve port 52
It is logical, and be truncated inside the second thermostat valve 5 for connecting the second water inlet valve port 51 and the channel of the second drain valve mouth 53；When flowing into
When the water temperature of second thermostat valve, 5 the inside is lower than the second commutation temperature, for connecting the second water inlet valve port 51 inside the second thermostat valve 5
It is switched on the channel of the second drain valve mouth 53, and goes out for connecting the second water inlet valve port 51 with second inside the second thermostat valve 5
The channel of water valve mouth 52 is truncated, and structure is simple, reduces the assembling cost of product, can also be effectively by heat exchanger 1, water outlet
Remaining water in pipe 3 is discharged outward.
In the present embodiment, the second thermostat valve 5 has the second commutation temperature, and the second commutation temperature is preferably preset as 4 DEG C, but
4 DEG C are not limited to, can also be preset as other more particularly suitable temperature according to actual needs.When the reality for flowing into 5 the inside of the second thermostat valve
When border water temperature is higher than the second commutation temperature, the second water inlet valve port 51 and the second water outlet valve port 52 are opened with will be in the second thermostat valve 5
Face be used for connect second water inlet valve port 51 and second water outlet valve port 52 between channel conductive, and closing the second drain valve mouth 53 with
The truncation of the channel between the second water inlet valve port 51 and the second drain valve mouth 53 will be used to connect inside the second thermostat valve 5, and then will
Water after the heating of over-heat-exchanger 1 exports hot water toward user terminal by outlet pipe 3；When the reality for flowing into 5 the inside of the second thermostat valve
When border water temperature and extraneous actual temperature are below the second commutation temperature, the second water inlet valve port 51 and the second drain valve mouth 53 are opened
Will be used to connect the channel conductive between the second water inlet valve port 51 and the second drain valve mouth 53 inside the second thermostat valve 5, and close
The second water outlet valve port 52 is closed will be used to connect the second water inlet valve port 51 and second inside the second thermostat valve 5 and be discharged the logical of valve port 52
Road truncation, due to being also preferably below the first commutation temperature in the actual water temperature and extraneous actual temperature that flow into 4 the inside of the first thermostat valve
When spending, the channel that the first thermostat valve 4 is opened between the first water inlet valve port 41 and the first drain valve mouth 43 makes inside heat exchanger 1
It is connected to by the first drainpipe 6 with outside, the channel between the first drainpipe 6 and the second drainpipe 7 is opened with this, and then in gas
The remaining water in heat exchanger 1 and outlet pipe 3 is discharged outward by the second drainpipe 7 under the action of pressure.
Preferably, pressure water storage case 8 is provided between the first thermostat valve 4 and heat exchanger 1, design rationally, can add
The effect that remaining water in heat-flash exchanger 1 is discharged outward.
Further, the position of pressure water storage case 8 is higher than the position of heat exchanger 1, can further strengthen the pressure in pipeline
Power is the remaining water in pipeline to be more rapidly discharged outward.
Specifically, pressure water storage case 8 has water inlet 81 and water outlet 82, and wherein water inlet 81 is located at pressure water storage case 8
Top and with first water outlet valve port 41 connect, water outlet 82 be located at the bottom of pressure water storage case 8 and with heat exchanger 1 company
It connects, structure is simple, can effectively exclude the water in pressure water storage case 8 outward clean.
In the present embodiment, pressure water storage case 8, pressure water storage case are provided between the first thermostat valve 4 and heat exchanger 1
The positions of 8 installations are higher than the position installed of heat exchanger 1 with for storing certain water, when flowing into the first thermostat valve 4
The actual water temperature in face and extraneous actual temperature are below the first commutation temperature and flow into the practical water of 5 the inside of the second thermostat valve
When mild extraneous actual temperature is also preferably below the second commutation temperature, the first thermostat valve 4 opens the first water inlet valve port 41 and first
Channel between draining valve port 43 to be connected to by the first drainpipe 6 with outside inside heat exchanger 1, and the second thermostat valve 5 is beaten
Open the channel between the second water inlet valve port 51 and the second drain valve mouth 53, with this open the first drainpipe 6 and the second drainpipe 7 it
Between channel, due to the water level in pressure water storage case 8 be higher than 7 water outlet of the second drainpipe water level, the second drainpipe 7 it is another
End is connected to external, under the action of water gravity in pressure water storage case 8 and air pressure, and then by pressure water storage case 8, heat exchanger
1 and outlet pipe 3 in remaining water be discharged outward by the first drainpipe 6, until pressure water storage case 8, heat exchanger 1 and outlet pipe 3
Interior remaining water exclusion finishes.After user reuses gas heater, when the actual water temperature for flowing into 5 the inside of the second thermostat valve is higher than
When the second commutation temperature, the channel that the first thermostat valve 4 is opened between the first water inlet valve port 41 and the first water outlet valve port 42 was in the past hot
It supplies water in exchanger 1, the second thermostat valve 5 opens the channel between the second water inlet valve port 51 and the second water outlet valve port 52, and second
It is truncated inside thermostat valve 5 for connecting the second water inlet valve port 51 and the channel of the second drain valve mouth 53, and then external cold water warp
Water inlet pipe 2 enters after heat exchanger 1 is heated to flow out outward through outlet pipe 3, and to mend again in pressure water storage case 8
It fills for full water state.
Preferably, the first thermostat valve 4 and the second thermostat valve 5 are all made of mechanical temperature control three-way valve, and assembling is at low cost,
Enhance the competitiveness of product.
In the present embodiment, the first thermostat valve 4 and the second thermostat valve 5 are all made of mechanical temperature control three-way valve, temperature control three
Port valve is a kind of to make temperature control three-way valve can be according to the temperature change of liquid opening with control valve by way of physical mechanical
Degree, in specific temperature, to realize the opening and closing function of temperature control three-way valve, when one of channel is open state,
Another channel is then in off state.
Embodiment two: as shown in Figure 2, the present embodiment provides a kind of anti-freezing gas water heaters, specifically with one phase of embodiment
With, by be respectively arranged on the water inlet pipe 2 and outlet pipe 3 of heat exchanger 1 first thermostat valve and the second thermostat valve with
For opening or closing corresponding pipeline according to the water temperature in pipe with decide whether will be in water inlet pipe, outlet pipe and heat exchanger
Remaining water be discharged outward, remaining water that can rapidly in automatic-discharging gas heater and pipeline avoids water pipe from freezing crack to reach
Antifreeze purpose.
In the present embodiment, specifically what is different from the first embodiment is that the pressure water storage case 8 of gas heater as described above
It is mounted at the position between the second thermostat valve 5 and heat exchanger 1, the position that pressure water storage case 8 is installed is higher than heat exchanger 1
The position installed is for storing certain water.
After gas heater stops heating, when the actual water temperature and extraneous practical temperature for flowing into 5 the inside of the second thermostat valve
When degree is below the second commutation temperature, the second thermostat valve 5 is opened logical between the second water inlet valve port 51 and the second drain valve mouth 53
Channel between road and the second water outlet valve port 52 of closing and the second water inlet valve port 51 is so as to pass through the second draining inside heat exchanger 1
Pipe 7 is connected to outside；When the actual water temperature and extraneous actual temperature that flow into 4 the inside of the first thermostat valve are below the first commutation temperature
When spending, the first thermostat valve 4 opens the channel between the first water outlet valve port 42 and the first drain valve mouth 43 and closes the first outlet valve
Channel between mouth 42 and the first water inlet valve port 41, opens the channel between the first drainpipe 6 and the second drainpipe 7 with this, by
The channel between the second water inlet valve port 51 and the second drain valve mouth 53 is opened in the second thermostat valve 5 to lead to inside heat exchanger 1
It crosses the second drainpipe 7 to be connected to outside, and then by pressure water storage case under the action of water gravity in pressure water storage case 8 and air pressure
8, the remaining water in heat exchanger 1 and water inlet pipe 2 is discharged outward by the first drainpipe 6, until pressure water storage case 8, heat exchanger 1
It is finished with the remaining water exclusion in water inlet pipe 2.
When the actual water temperature for flowing into 5 the inside of the first thermostat valve 4 and the second thermostat valve is respectively higher than the first commutation temperature, second
When the temperature that commutates, the first thermostat valve 4 opens the channel between the first water inlet valve port 41 and the first water outlet valve port 42 and closes first
Channel between water outlet valve port 42 and the first drain valve mouth 43 in heat exchanger 1 with to supply water；Second thermostat valve 5 is opened second and is gone out
Channel and closing second between water valve mouth 52 and the second water inlet valve port 51 intake between valve port 51 and the second drain valve mouth 53
The previous user terminal in channel exports hot water, closes the channel between the first drainpipe 6 and the second drainpipe 7 with this.
Embodiment three: as shown in Figure 3, the present embodiment provides a kind of control methods of anti-freezing gas water heater, are applied to
The control method of gas heater as described above, anti-freezing gas water heater includes the following steps:
S101, when heat exchanger stops heating work, the perception of the first thermostat valve flows into the water temperature inside the first thermostat valve,
Second thermostat valve perception simultaneously flows into the water temperature inside the second thermostat valve；
S102 judges whether the water temperature flowed into inside the first thermostat valve and the water temperature flowed into inside the second thermostat valve are low respectively
In the first commutation temperature, the second commutation temperature；
When flow into the water temperature inside the first thermostat valve and the water temperature inside the second thermostat valve be respectively higher than the first commutation temperature,
When the second commutation temperature, the first thermostat valve opens the first water inlet valve port and closes the first drain valve mouth so that the first water inlet valve port is connected
And first water outlet valve port between channel, while the second thermostat valve open second water outlet valve port and close the second drain valve mouth to lead
Channel between logical second water inlet valve port and the second water outlet valve port, and then close logical between the first drainpipe and the second drainpipe
Then road returns to S101 step and continues to perceive water temperature；
When flow into the water temperature inside the first thermostat valve and the water temperature inside the second thermostat valve be respectively lower than the first commutation temperature,
Second commutation temperature, the first thermostat valve open the first water inlet valve port and the first drain valve mouth and close the first water outlet valve port, in turn
Channel between the first water inlet valve port of conducting and the first drain valve mouth is to pass through the first drainpipe and outside for internal heat exchanger
Connection, while the second thermostat valve opens the second water inlet valve port and the second drain valve mouth and closes the second water outlet valve port, and then opens
Pressure is stored up under the action of pressure water storage case water gravity and air pressure in channel between first drainpipe and the second drainpipe
Remaining water in water tank, heat exchanger and outlet pipe is discharged outward by the second drainpipe, rapidly empties gas heater with this
Remaining water in pipeline avoids water pipe from freezing crack to reach antifreeze purpose, it is ensured that gas heater can normally make at low temperatures
With.
Specifically, when heat exchanger carries out heating work, the first thermostat valve and the second thermostat valve perceive the water temperature in pipe,
When flowing into the water temperature inside the first thermostat valve and the water temperature inside the second thermostat valve is respectively higher than the first commutation temperature, the second commutation
When temperature, the first thermostat valve opens the first water inlet valve port and closes the first drain valve mouth, and then the first water inlet valve port and the is connected
Channel between one water outlet valve port is will fill up for water supply in heat exchanger and in pressure water storage case and heat exchanger water, while the
Two thermostat valves open the second water outlet valve port and close the second drain valve mouth, and then the second water inlet valve port and the second water outlet valve port is connected
Between channel so that external cold water is entered after heat exchanger is heated through water inlet pipe and is flowed out outward through outlet pipe.
In the present embodiment, the first commutation temperature and the second commutation temperature are preset temperature value, are preferably preset as 4
DEG C, but 4 DEG C are not limited to, it can also be preset as other more particularly suitable temperature according to actual needs.Antifreeze combustion provided in this embodiment
The control method of gas water heater so that gas heater can by water temperature in detection pipe, extraneous temperature respectively with it is preset
Commutation temperature is compared, and opens or closes corresponding pipeline according to judging result to decide whether water inlet pipe, outlet pipe
It is discharged outward with the remaining water in heat exchanger, so that gas heater has antifreeze function, control method is effective and feasible,
Environmental protection and energy saving.
Above-described is only some embodiments of the present invention.For those of ordinary skill in the art, not
Under the premise of being detached from the invention design, various modifications and improvements can be made, these belong to protection model of the invention
It encloses.
Claims (10)
1. a kind of anti-freezing gas water heater, including heat exchanger (1), water inlet pipe (2) and outlet pipe (3), the heat exchanger (1)
It is connect respectively with the water inlet pipe (2) and the outlet pipe (3), external cold water enters the heat through the water inlet pipe (2) and hands over
Parallel operation (1) flows out after being heated through the outlet pipe (3) outward, which is characterized in that further includes having the first thermostat valve (4),
Two thermostat valves (5), the first drainpipe (6) and the second drainpipe (7), first thermostat valve (4) are set to the water inlet pipe (2)
Between the heat exchanger (1), first thermostat valve (4) at least has the first water inlet valve port (41), the first water outlet valve port
(42) and the first drain valve mouth (43), wherein first water inlet valve port (41) is connect with the water inlet pipe (2), described first goes out
Water valve mouth (42) is connect with the heat exchanger (1), and the first drain valve mouth (43) connect with first drainpipe (6)；
Second thermostat valve (5) is set between the heat exchanger (1) and the outlet pipe (3), second thermostat valve
(5) at least there is the second water inlet valve port (51), the second water outlet valve port (52) and the second drain valve mouth (53), wherein described second into
Water valve mouth (51) is connect with the heat exchanger (1), and second water outlet valve port (52) is connect with the outlet pipe (3), described
Second drain valve mouth (53) is connect with second drainpipe (7).
2. a kind of anti-freezing gas water heater according to claim 1, which is characterized in that first thermostat valve (4) has
First commutation temperature, when flowing into the water temperature inside first thermostat valve (4) higher than the first commutation temperature, described first
It is switched on inside thermostat valve (4) for connecting the channel of first water inlet valve port (41) and first water outlet valve port (42),
And the logical of valve port (42) is discharged for connecting the first drain valve mouth (43) and described first inside first thermostat valve (4)
Road is truncated；
When flowing into the water temperature inside first thermostat valve (4) lower than the first commutation temperature, first thermostat valve (4)
The inside is used to connect the first drain valve mouth (43) and the channel of first water outlet valve port (42) is switched on, and described first
It is truncated inside thermostat valve (4) for connecting the channel of first water inlet valve port (41) and first water outlet valve port (42).
3. a kind of anti-freezing gas water heater according to claim 1, which is characterized in that second thermostat valve (5) has
Second commutation temperature, when flowing into the water temperature inside second thermostat valve (5) higher than the second commutation temperature, described second
It is switched on inside thermostat valve (5) for connecting the channel of second water inlet valve port (51) and second water outlet valve port (52),
And for connecting the logical of second water inlet valve port (51) and the second drain valve mouth (53) inside second thermostat valve (5)
Road is truncated；
When flowing into the water temperature inside second thermostat valve (5) lower than the second commutation temperature, second thermostat valve (5)
The inside is used to connect second water inlet valve port (51) and the channel of the second drain valve mouth (53) is switched on, and described second
It is truncated inside thermostat valve (5) for connecting the channel of second water inlet valve port (51) and second water outlet valve port (52).
4. a kind of anti-freezing gas water heater according to claim 1,2 or 3, which is characterized in that in first thermostat valve
(4) it is provided between the heat exchanger (1) pressure water storage case (8).
5. a kind of anti-freezing gas water heater according to claim 4, which is characterized in that the position of the pressure water storage case (8)
Set the position higher than the heat exchanger (1).
6. a kind of anti-freezing gas water heater according to claim 5, which is characterized in that the pressure water storage case (8) has
Water inlet (81) and water outlet (82), wherein the water inlet (81) be located at the top of the pressure water storage case (8) and with institute
State the first water outlet valve port (42) connection, the water outlet (82) be located at the bottom of the pressure water storage case (8) and with the heat
Exchanger (1) connection.
7. a kind of anti-freezing gas water heater according to claim 1,2 or 3, which is characterized in that first thermostat valve (4)
Mechanical temperature control three-way valve is all made of with second thermostat valve (5).
8. a kind of control method of anti-freezing gas water heater, which is characterized in that applied to as described in claim 1 to 7 is any
The control method of anti-freezing gas water heater, the anti-freezing gas water heater includes the following steps:
The first thermostat valve perception flows into the water temperature inside first thermostat valve, while second thermostat valve perception flows into
Water temperature inside second thermostat valve；
Judge whether the water temperature flowed into inside first thermostat valve and the water temperature flowed into inside second thermostat valve are low respectively
In the first commutation temperature, the second commutation temperature, corresponding pipeline is opened or closed to determine to be according to judging result
The no remaining water by the water inlet pipe, the outlet pipe and the heat exchanger is discharged outward.
9. a kind of control method of anti-freezing gas water heater according to claim 8, which is characterized in that when flowing into described
The water temperature inside water temperature and second thermostat valve inside one thermostat valve is respectively lower than the first commutation temperature, described second
Commutate temperature, and first thermostat valve opens the first drain valve mouth and closes the first water inlet valve port to be connected described the
Channel between one draining valve port and the first water outlet valve port, while second thermostat valve opens the second drain valve mouth
And close the second water outlet valve port the channel between the second water inlet valve port and the second water outlet valve port is connected, in turn
The channel between first drainpipe and second drainpipe is opened, in the work of the pressure water storage case water gravity and air pressure
It is under, the remaining water in the pressure water storage case, the heat exchanger and the outlet pipe is past by second drainpipe
Outer discharge.
10. a kind of control method of anti-freezing gas water heater according to claim 9, which is characterized in that described when flowing into
The water temperature inside water temperature and second thermostat valve inside first thermostat valve is respectively higher than the first commutation temperature, described the
When two commutation temperature, first thermostat valve opens the first water inlet valve port and closing first drain valve is described to be connected
Channel between first water inlet valve port and the first water outlet valve port, while second thermostat valve opens second outlet valve
Mouthful and close the second drain valve mouth so that the channel between the second water inlet valve port and the second water outlet valve port is connected, into
And close the channel between first drainpipe and second drainpipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003929.2A CN109631312A (en) | 2019-01-03 | 2019-01-03 | Anti-freezing gas water heater and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910003929.2A CN109631312A (en) | 2019-01-03 | 2019-01-03 | Anti-freezing gas water heater and control method thereof |
Publications (1)
| Publication Number | Publication Date |
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| CN109631312A true CN109631312A (en) | 2019-04-16 |
Family
ID=66056661
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910003929.2A Pending CN109631312A (en) | 2019-01-03 | 2019-01-03 | Anti-freezing gas water heater and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111426054A (en) * | 2020-05-07 | 2020-07-17 | 珠海格力电器股份有限公司 | Protection structure, protection method and water heater |
| CN111964271A (en) * | 2020-08-27 | 2020-11-20 | 韩国梦 | Energy-saving water heating device and using method |
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| KR200378537Y1 (en) * | 2004-12-17 | 2005-03-14 | 지충현 | gas boiler protection burst from freezing and apparatus for supply warm-water |
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| CN111426054A (en) * | 2020-05-07 | 2020-07-17 | 珠海格力电器股份有限公司 | Protection structure, protection method and water heater |
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| CN111964271B (en) * | 2020-08-27 | 2022-04-19 | 韩国梦 | Energy-saving water heating device and using method |
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