CN212339621U - Gas water heater capable of heating - Google Patents
Gas water heater capable of heating Download PDFInfo
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- CN212339621U CN212339621U CN202020718310.8U CN202020718310U CN212339621U CN 212339621 U CN212339621 U CN 212339621U CN 202020718310 U CN202020718310 U CN 202020718310U CN 212339621 U CN212339621 U CN 212339621U
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Abstract
The utility model discloses a gas water heater capable of heating, which comprises a shell, wherein a heat exchange system and a combustion system are arranged in the shell; the heat exchange system is provided with a water inlet end and a water outlet end, the water inlet end is communicated with a water inlet arranged on the shell through a main water inlet pipeline, and a first water flow sensor and a water inlet temperature sensor are arranged on the main water inlet pipeline; still be provided with bathroom delivery port, heating return water mouth on the casing, heating return water mouth is linked together through heating return water pipe and main inlet channel, is provided with the first water pump that is used for heating water circulation on the heating return water pipe, and the play water end is equipped with first three-way valve, and the bathroom delivery port passes through bathroom water piping and links to each other with a port of first three-way valve, and the heating delivery port passes through heating water piping and links to each other with another port of first three-way valve. The utility model discloses a gas heater can heat the bathroom when the user bathes, has avoided the user to be in the low temperature environment at the in-process of bathing, has improved user's bathing experience.
Description
Technical Field
The utility model relates to a gas heater technical field, more specifically relates to a can heat gas heater.
Background
When a user bathes in winter, the temperature of a bathroom is low, a large amount of water vapor generated in the bathing process needs to keep ventilation, and the heating function of the current gas water heater cannot be used with the bathroom function at the same time, so that the bathing experience of the user is greatly influenced. Therefore, it is urgently needed to develop a gas water heater which can simultaneously operate in bathroom and heating, and ensure comfortable bathing of users.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome among the above-mentioned prior art gas heater's heating function can't use simultaneously with the bathroom function, the user is low at bathing in-process bathroom temperature, influences the problem that user's bathing was experienced, provides a gas heater can heat.
In order to solve the technical problem, the utility model discloses a technical scheme is:
the heating gas water heater comprises a shell, wherein a heat exchange system and a combustion system are arranged in the shell; the heat exchange system is provided with a water inlet end and a water outlet end, the water inlet end is communicated with a water inlet arranged on the shell through a main water inlet pipeline, and a first water flow sensor and a water inlet temperature sensor are arranged on the main water inlet pipeline; the gas water heater also comprises a controller, wherein the signal output ends of the first water flow sensor and the inlet water temperature sensor are connected with the signal input end of the controller, and the signal output end of the controller is respectively and electrically connected with the control end of the first water pump and the control end of the combustion system; the water outlet end is provided with a first three-way valve, the bathroom water outlet is connected with a first port of the first three-way valve through a bathroom water pipeline, the heating water outlet is connected with a second port of the first three-way valve through a heating water pipeline, and a third port of the first three-way valve is communicated with the water outlet end through a pipeline.
In one embodiment, the water inlet is communicated with a second three-way valve, a first port of the second three-way valve is communicated with the water inlet end through a main water inlet pipeline, a second port of the second three-way valve is communicated with the bathroom water pipeline through a bypass pipeline, and a third port of the second three-way valve is communicated with the water inlet through a main water inlet pipeline; and a water mixing device is arranged at the communication position of the bypass pipeline and the bathroom water pipeline.
In one embodiment, a pipeline between the water outlet end and the first three-way valve is provided with a water outlet temperature sensor; and a bathroom outlet water temperature sensor is arranged at the position, close to the bathroom outlet, of the bathroom water pipeline.
In one embodiment, the water mixing device is an electronic water mixing thermostatic regulating valve or a water mixing tank.
In one embodiment, the bathroom water pipeline or the heating water pipeline is further provided with a circulation-protecting device for protecting the circulation of heating backwater when water is discharged from the bathroom water outlet and the heating water outlet simultaneously.
In one embodiment, a second water flow sensor is provided on the heating water pipe.
In one embodiment, the circulation-protecting device is a second water pump arranged on the heating water pipeline or a water flow regulating device arranged on the sanitary water pipeline.
In one embodiment, a bathroom water return port is further arranged on the shell and is communicated with the heating water return pipeline through a bathroom water return pipeline; bathroom return water pipeline with heating return water pipeline intercommunication department is located one side that first water pump is close to heating return water mouth.
In one embodiment, a second two-position two-way valve and a bathroom return water temperature sensor are arranged on the bathroom return water pipeline and close to the bathroom return water opening; and the first valve port of the second two-position two-way valve is communicated with the bathroom water return port through a bathroom water return pipeline, and the second valve port of the second two-position two-way valve is communicated with the heating water return pipeline through a bathroom water return pipeline.
In one embodiment, a first two-position two-way valve and a heating return water temperature sensor are arranged on one side, close to a heating return water port, of the heating return water pipeline; and the first valve port of the first two-position two-way valve is communicated with the heating water return port through a heating water return pipeline, and the second valve port of the first two-position two-way valve is communicated with one port of the first water pump through a heating water return pipeline.
The utility model discloses a gas heater compares with the background art, and the technological effect who produces is: the utility model discloses a gas heater can heat the bathroom when the user bathes, improves the temperature in bathroom, has avoided the user to be in the low temperature environment at the in-process of bathing, has improved user's bathing experience.
Drawings
FIG. 1 is a schematic structural diagram I of the gas water heater of the present invention;
FIG. 2 is a schematic structural view II of the gas water heater of the present invention;
FIG. 3 is a diagram of an embodiment of the gas water heater of the present invention;
fig. 4 is a schematic structural view of an electronic mixed water constant temperature regulating valve in the gas water heater of the present invention;
FIG. 5 is a control flow chart of the sanitary mode of the gas water heater of the present invention;
FIG. 6 is a control flow chart of the heating mode of the gas water heater of the present invention;
FIG. 7 is a control flow chart of the zero cold water mode of the gas water heater of the present invention;
FIG. 8 is a control flow chart of the gas water heater starting the heating mode after the bathroom mode;
FIG. 9 is a control flow chart of the gas water heater according to the present invention, which is started in the bathroom mode after the heating mode;
FIG. 10 is a control flow chart showing the operation of the gas water heater in the zero-cooling mode and then in the heating mode;
FIG. 11 is a control flow chart of the gas water heater starting the zero-cooling mode after the heating mode;
FIG. 12 is a schematic view of the water mixing tank of the gas water heater of the present invention;
in the drawings: 1-shell, 2-combustion system, 3-heat exchange system, 31-water inlet end, 32-water outlet end, 4-water inlet, 5-main water inlet pipeline, 6-bathroom water outlet, 7-heating water outlet, 8-heating water return port, 9-heating water return pipeline, 10-first water pump, 11-first three-way valve, 12-bathroom water pipeline, 13-heating water pipeline, 30-second three-way valve, 14-bypass pipeline, 15-electronic water mixing constant temperature regulating valve, 16-second water pump, 17-water flow regulating device, 18-bathroom water return port, 19-bathroom water return pipeline, 20-second two-position two-way valve, 21-bathroom water return temperature sensor, 22-first two-position two-way valve, 23-heating water return temperature sensor, 23-bathroom water return temperature sensor, 24-a second water flow sensor, 25-an inlet water temperature sensor, 26-a first water flow sensor, 27-an outlet water temperature sensor, 28-a bathroom outlet water temperature sensor, 32-a pipeline 32, 33-a zero-cold water pipeline, 34-a one-way valve 34, 35-heating equipment, 36-bathing equipment, 37-a one-way valve, 38-a water mixing tank and 39-a third two-position two-way valve.
Detailed Description
As shown in fig. 1 to 4, a gas water heater capable of heating comprises a shell 1, wherein a heat exchange system 2 and a combustion system 3 are arranged in the shell 1; the heat exchange system 3 is provided with a water inlet end 31 and a water outlet end 32, the water inlet end 31 is communicated with a water inlet 4 arranged on the shell 1 through a main water inlet pipeline 5, and a first water flow sensor 26 and a water inlet temperature sensor 25 are arranged on the main water inlet pipeline 5; a bathroom water outlet 6 is also arranged on the shell 1, heating delivery port 7 and heating return water mouth 8, heating return water mouth 8 is linked together with main inlet channel 5 through heating return water pipe 9, be provided with the first water pump 10 that is used for heating water circulation on the heating return water pipe 9, gas heater still includes the controller, the signal output part of first water flow sensor 26 and temperature sensor 25 of intaking is connected with the signal input part of controller, the signal output part of controller is connected with the control end of first water pump 10 and combustion system 2's control end electricity respectively, it is equipped with first three-way valve 11 to go out water end 32, bathroom delivery port 6 passes through bathroom water pipeling 12 and links to each other with the first port of first three-way valve 11, heating delivery port 7 passes through heating water pipeling 13 and links to each other with the second port of first three-way valve 11, the third port of first three-way valve 11 passes through the pipeline intercommunication with play water. It should be noted that when a user takes a bath, water enters the heat exchange system 3 from the water inlet end 32 through the main water inlet pipe 5 from the water inlet 4, meanwhile, heat generated by combustion of the combustion system 2 heats water in the heat exchange system 3, hot water flows out from the water outlet end 32 of the heat exchange system 3, and after being split by the first three-way valve 11, one path of hot water flows to the bathroom water outlet 6 through the bathroom water pipe 12; the other path of hot water flows to the heating water outlet 7 through the heating water pipeline 13; the heating water outlet 7 is communicated with a water inlet of a heating device 35 of the bathroom through a pipeline, the heating water return port 8 is communicated with a water outlet of the heating device 35 of the bathroom, and hot water can improve the temperature of the bathroom under the action of the heating device 35; the bathroom water outlet 6 is communicated with a shower device 36 in a bathroom through a pipeline, and hot water can provide bathing for a user after flowing out of the bathroom water outlet 6. In addition, the first water pump 10 can provide power for circulation of heating return water in the heating return water pipe 9 in the gas water heater. In this embodiment, through the setting of first three-way valve 11, when the user bathes, gas heater can heat the bathroom, improves the temperature in bathroom, has avoided the user to be in microthermal bathroom at the in-process of bathing, has improved user's bathing experience. It should be noted that the casing 1 is further provided with a gas inlet 29, and the gas inlet 29 is connected to the combustion system 2 through a pipeline. The first water flow rate sensor 26 is used for detecting the inlet water flow rate, and the detected flow rate can be used as one of the conditions for starting the burner; the intake water temperature sensor 25 is for detecting the intake water temperature, and the detected temperature thereof may be one of the conditions for burner startup.
When the bathroom function and the heating function are used simultaneously, the following data are obtained through testing, the following data are derived from a certain testing environment, and when the testing environment changes, the tested data also change correspondingly, and the following data are only used for illustration.
| First group | Second group | Third group | Fourth group | |
| Inflow (L/min) | 5 | 6 | 7 | 8 |
| Total flow of effluent (L/min) | 7.5 | 7.8 | 8 | 8.5 |
| Toilet and bathroom water flow (L/min) | 5 | 6 | 7 | 8 |
| Heating water flow (L/min) | 2.5 | 1.8 | 1 | 0.5 |
| Heating backwater flow (L/min) | 2.5 | 1.8 | 1 | 0.5 |
| Whether the heating function works normally | Is that | Is that | Is that | Is that |
| Whether the bathroom functions are working normally | Is that | Is that | Is that | Is that |
In the above table, the inflow rate is the flow rate of the tap water entering from the water inlet 4, and the total outflow rate is the total outflow rate from the water outlet end 32 of the heat exchange system 3; the bathroom water flow is the flow at the bathroom water outlet 6; the heating water flow rate is the flow rate entering the water inlet of the heating equipment 35, namely the flow rate detected by the second flow sensor 24; the heating backwater flow is the flow of the water outlet of the heating equipment 35; the flow rate of the water pump is the flow rate of the first water pump 10 on the heating water return pipeline 9. When the flow rate of the first water pump 10 in the system is 4L/min and the inflow water flow rate ranges from 5L/min to 7L/min, the effect is best when the bathroom function and the heating function operate simultaneously; when the inflow rate is adjusted to 4L/min or less, the heating function can work, but the bathroom function is slightly affected. Under the condition that the flow rate of the first water pump 10 in the system is 4L/min, the flow rate of the bathroom water is recommended to be adjusted to 6L/min, the heating state can still be guaranteed at the moment, and the bathroom function is guaranteed. In addition, the balance between the heating flow and the bathroom flow can be adjusted by increasing the number of the water pumps or increasing the flow of the water pumps.
In one embodiment, the water inlet 4 is communicated with a second three-way valve 30, a first port of the second three-way valve 30 is communicated with the water inlet end 31 through a main water inlet pipe 5, a second port of the second three-way valve 30 is communicated with the sanitary water pipe 12 through a bypass pipe 14, a third port of the second three-way valve 30 is communicated with the water inlet 4 through the main water inlet pipe 5, and a water mixing device is arranged at the communication position of the bypass pipe 14 and the sanitary water pipe 12. In this embodiment, when the bathroom mode of water heater and the heating mode simultaneous working or the water heater switches from the heating mode to the bathroom mode, if the bathroom water temperature in the bathroom water piping is too high, can introduce low-temperature water from main inlet pipe 5 through second three-way valve 30, bypass pipeline 14, the back is mixed through water mixing device to the high temperature water in low-temperature water and the bathroom water piping 12, reaches the bath water of user ideal temperature at last, avoids the bathroom water scald user of high temperature.
In one embodiment, a pipeline between the water outlet end 32 and the first three-way valve 11 is provided with a water outlet temperature sensor 27; a bathroom outlet water temperature sensor 28 is arranged on the bathroom water pipeline 12 close to the bathroom water outlet 6. The outlet water temperature sensor 27 is used to detect the temperature of water, and can adjust the load of the combustion system according to the detected temperature. The bathroom outlet water temperature sensor 28 is used for detecting the bathroom water outlet temperature, and is convenient for mastering the bathroom real-time outlet water temperature in real time.
In one embodiment, the mixing device is the electronic mixing thermostatic regulating valve 15 or the mixing tank 38. In this embodiment, the electronic thermostatic mixing valve 15 and the water mixing tank can mix the hot water from the bathroom water pipe 12 and the cold water from the bypass pipe 14, so as to obtain the bathing water with a desired temperature. The left water inlet end of the electronic water mixing constant-temperature regulating valve 15 is normally open and communicated with a bathroom water pipeline, the right water inlet end of the electronic water mixing constant-temperature regulating valve 15 is normally closed and connected with the bypass pipeline 14, and the mixed water outlet end of the electronic water mixing constant-temperature regulating valve 15 is normally open and communicated with a bathroom water outlet 6. When the right water inlet end of the electronic water mixing constant temperature regulating valve 15 is opened, the water in the bypass pipeline 14 and the water in the sanitary water pipeline 12 can be mixed, and then the mixed water flows out from the mixed water outlet end of the electronic water mixing constant temperature regulating valve 15. When the water mixing device is the water mixing tank 38, a third two-position two-way valve 39 needs to be arranged on the bypass pipeline 14, the third two-position two-way valve 39 is connected with the controller, and when the third two-position two-way valve 39 is opened, low-temperature water can be introduced into the water mixing tank 38. In order to enable the water from the sanitary water conduit 12 to be better mixed with the low temperature water introduced through the bypass conduit 14, the sanitary water conduit 12 extends into the bottom of the water mixing tank 38, one end of the bypass conduit 14 is also arranged at the bottom of the water mixing tank 38, and the sanitary water outlet conduit 12 between the sanitary water outlet 6 and the water mixing tank 38 extends into the upper portion of the water mixing tank 38. It should be noted that, the electronic mixed water constant temperature regulating valve 15 is opened, which means that the right water inlet end of the sub mixed water constant temperature regulating valve 15 is opened; the mixing tank 38 is turned on, and the third two-position two-way valve 39 provided in the bypass line 14 is turned on.
In one embodiment, the sanitary water pipeline 12 or the heating water pipeline 13 is further provided with a circulation-protecting device for protecting the heating water return circulation when water is discharged from the sanitary water outlet 6 and the heating water outlet 7 at the same time. In this embodiment, since the hot water flows out from the water outlet end 32, after being split by the first three-way valve 11, one path of water is used for bathing, and the other path of water is used for heating; and the water route for bathing belongs to the open circuit, the hot water flow resistance of this way is little, and the water route for heating belongs to the closed loop water route, and the hot water flow resistance of this way is big, in order to guarantee when the user bathes, the heating function is not influenced, and the heat supply return water that keeps circulating device to ensure in the heating return water pipeline 9 can normally circulate.
In one embodiment, a second water flow sensor 24 is provided on the heating water pipe 13, the second water flow sensor 24 is used for detecting the water flow in the heating water pipe 13, and the flow value detected by the second water flow sensor 24 can be used as a condition for starting the circulation protective device.
In one embodiment, the circulation-protecting device is a second water pump 16 provided on the heating water pipe 13. In this embodiment, the second water pump 16 disposed on the heating water pipeline 13 can deliver the hot water in the heating water pipeline 13 to the heating device 35 through the heating water outlet 7, and then the heating return water of the heating device 35 can be circulated to the heat exchange system 3 through the heating return water pipeline 9 and the main water inlet pipeline 5 by the action of the first water pump 10. The circulation-maintaining device may be a water flow adjusting device 17 provided on the sanitary water pipe 12, and the water flow adjusting device 17 may be a proportional valve. Through the setting of proportional valve, can adjust the hydrothermal flow in bathroom water piping 12 for the hot water flow in bathroom water piping 12 reduces, thereby improves hydrothermal flow in heating water piping 13 relatively, has ensured the normal operating of heating function.
In one embodiment, a bathroom water return port 18 is further formed in the housing 1, and the bathroom water return port 18 is communicated with the heating water return pipe 9 through a bathroom water return pipe 19; the connection position of the bathroom water return pipeline 19 and the heating water return pipeline 9 is positioned on one side of the first water pump 10 close to the heating water return port 8. It should be noted that the bathroom water outlet 18 is connected to the shower device through a pipeline 32, a third three-way valve 31 is disposed on the pipeline 32, the other end of the third three-way valve 31 is connected to the bathroom water return port 18 through a zero-cooling water pipeline 33, and the bathroom water return port 18 is communicated with the heating water return pipeline 9 through a bathroom water return pipeline 19, so that when a user just starts to take a shower, the temperature of water in the pipeline between the bathroom water outlet 6 and the shower device is not too low, and the shower experience of the user is improved. Note that, in order to prevent the water in the zero-cool water pipe 33 from flowing back, a check valve 37 should be provided in the zero-cool water pipe 33.
In one embodiment, a second two-position two-way valve 20 and a bathroom return water temperature sensor 21 are disposed on the bathroom return pipe 19 near the bathroom return port 18; a first valve port of the second two-position two-way valve 20 is communicated with a bathroom water return port 18 through a bathroom water return pipeline 19, and a second valve port of the second two-position two-way valve 20 is communicated with the heating water return pipeline 9 through a bathroom water return pipeline 19. In this embodiment, the second two-position two-way valve 20 may control the opening and closing of the bathroom water return pipe 19; the bathroom return water temperature sensor 21 is used for detecting the temperature of bathroom return water (namely, the return water temperature in the zero cold water pipeline 33), and the load of the combustion system is controlled by the gas water heater according to the temperature.
In one embodiment, a first two-position two-way valve 22 and a heating return water temperature sensor 23 are arranged on one side of the heating return water pipe 9 close to the heating return water port 8; the first valve port of the first two-position two-way valve 22 is communicated with the heating water return port 8 through the heating water return pipeline 9, and the second valve port of the first two-position two-way valve 22 is communicated with one port of the first water pump 10 through the heating water return pipeline 9. The first two-position two-way valve 22 is used for controlling the on-off of the heating water return pipeline 9, the heating water return temperature sensor 23 is used for detecting the temperature of heating water return, and the gas water heater controls the combustion load of the combustion system according to the temperature value.
The working principle is as follows:
the bathroom mode working process is as follows: as shown in fig. 5, the water heater is powered on and in a standby state, the bathroom water temperature T0 is set, the water consumption equipment is turned on, and the inlet water temperature sensor 25 and the first water flow sensor 26 (water flow sensor M1) detect whether the start condition of the combustion system 2 is satisfied; if the starting condition is not met, the starting is not carried out; if the start-up conditions are met, the combustion system 2 is started. After the combustion system 2 is started, the bathroom outlet water temperature sensor 28 detects whether the bathroom outlet water temperature T2 is consistent with the set bathroom water temperature T0; if T2 is larger than T0, the water mixing device is opened (the electronic water mixing constant temperature adjusting valve 15 or the water mixing tank is opened), low-temperature water is introduced from the bypass pipeline 14 and is mixed with high-temperature water in the bathroom water pipeline 12 to obtain bathroom water with the temperature close to the bathroom water temperature T0, then the water mixing device is closed (the electronic water mixing constant temperature adjusting valve 15 or the water mixing tank is closed), and water equipment outputs hot water; if T2 < T0, the combustion system adjusts the load; if T2 is T0, hot water is directly discharged by the water device.
The heating mode working process is as follows: as shown in fig. 6, the water heater is powered on and in a standby state, the water consumption device is turned off, the second two-position two-way valve 20 (the two-position two-way valve S2) is turned off, the heating function is set to be turned on, the first two-position two-way valve 22 (the two-position two-way valve S1) is turned on, the first water pump 10 is started, and the inlet water temperature sensor 25 and the first flow sensor 26 respectively detect whether the inlet water temperature and the flow rate satisfy the turning-on condition of the combustion system 2. If the starting condition of the combustion system 2 is met at the same time, the combustion system 2 is started; after the combustion system 2 is started, the outlet water temperature sensor 27 detects whether the water temperature is equal to the heating water temperature TFor supplying toAnd if so, the heater 35 heats, and if not, the load of the combustion system 2 is adjusted.
The zero cold water mode operation process is as follows: as shown in fig. 7, the water heater is powered on and in a standby state, the water using equipment is turned off, the first two-position two-way valve 22 (the two-position two-way valve S1) is turned off, the zero cold water starting function is set to be turned on, the bathroom return water temperature sensor 21 detects whether the bathroom return water temperature meets the zero cold water starting condition, and if the zero cold water starting condition is not met, the zero cold water function is stopped; if the zero cold water start condition is satisfied, the second two-position two-way valve 20 (the two-position two-way valve S2) and the first water pump 10 are turned on; the first water flow sensor 26 (water flow sensor M1) detects whether the intake water flow satisfies the start-up condition of the combustion system, and if the start-up condition of the combustion system 2 is satisfied, the combustion system 2 is started up; if the combustion system 2 start-up conditions are not met, the zero cold water function is stopped. After the combustion system 2 is started, the outlet water temperature sensor 27 detects whether the water temperature is equal to the zero cold water temperature TZeroCoincidence (T)ZeroZero cold water temperature set for the user), if consistent, hot water enters the zero cold water pipeline 33 from the bathroom water outlet 6 through the third three-way valve 31.
Bathroom mode and heating mode: the bathroom mode and the heating mode work simultaneously and divide into two kinds, and the first kind is for starting bathroom mode earlier then starting the heating mode, and the second kind is for starting heating mode earlier then starting bathroom mode.
The working process of starting the bathroom mode and then starting the heating mode is as follows: as shown in FIG. 8, the water heater is in the bathroom mode, and then the heating mode is turned on, the heating water temperature TFor supplying toThe second water flow sensor 24 (water flow sensor M2) detects whether the flow rate in the heating water pipe 13 is too low, and if the flow rate in the heating water pipe 13 is too low, the water circulation protection device is activated (the second water pump 16 is activated to increase the flow rate in the heating water pipe 13 or activate the water flow adjustment device 17 to decrease the flow rate in the sanitary water pipe 12, thereby relatively increasing the flow rate in the heating water pipe 13), so that it is ensured that the water amounts in the heating water pipe 13 and the sanitary water pipe 12 can normally operate, and the heating device starts heating. If the flow in the heating water pipeline 13 meets the condition, the circulation-protecting device keeps the current working state, and the heating device starts heating.
The working process of firstly starting the heating mode and then starting the bathroom mode is as follows: as shown in fig. 9, the water heater is in the heating mode, the bathroom water temperature T0 is set, the water using device is turned on, the second water flow sensor 24 (water flow sensor M2) detects whether the flow rate in the heating water pipe 13 is too low, and if the flow rate in the heating water pipe 13 is too low, the water circulation protection device is turned on (the second water pump 16 is turned on to increase the flow rate in the heating water pipe 13 or to turn on the water flow regulating device 17 to reduce the flow rate in the bathroom water pipe, thereby relatively increasing the flow rate in the heating water pipe 13), thereby ensuring that the water amounts in the heating water pipe 13 and the bathroom water pipe 12 can be normally operated. The bathroom outlet water temperature sensor 28 detects the bathroom outlet water temperature T2, and if T2 is not more than T0, the bathroom water directly flows to water using equipment from the bathroom water outlet 6; if T2 is more than T0, the water mixing device is opened, the low-temperature water introduced through the bypass pipeline 14 is mixed with the high-temperature water in the sanitary water pipeline 12, and when the sanitary outlet water temperature T2 is close to the sanitary water temperature T0, the water using equipment outputs hot water with proper temperature. When the flow rate in the heating water pipeline 13 meets the condition, the bathroom outlet water temperature sensor 28 detects the bathroom outlet water temperature T2, and if T2 is not more than T0, the bathroom water directly flows to water using equipment from the bathroom water outlet 6; if T2 is more than T0, the water mixing device is opened, the low-temperature water introduced through the bypass pipeline 14 is mixed with the high-temperature water in the sanitary water pipeline 12, and when the sanitary outlet water temperature T2 is close to the sanitary water temperature T0, the water using equipment outputs hot water with proper temperature.
Zero cold water mode and heating mode: the zero-cold-water mode and the heating mode are divided into two modes, wherein one mode is that the zero-cold-water mode is started firstly, and then the heating mode is started; the second mode is that the heating mode is started first, and then the zero-cold-water mode is started.
The working flow of starting the zero-cold-water mode and then starting the heating mode is as follows: as shown in FIG. 10, the water heater is in the zero cold water mode, and the heating mode is turned on, wherein the heating water temperature T isFor supplying to＝TZero，TZeroThe zero cold water temperature value set for the user, the second water flow sensor 24 (water flow sensor M2) detects whether the flow in the heating water pipe 13 is too low, and if the flow in the heating water pipe 13 is too low, the water circulation protection device is activated (the second water pump 16 is activated to increase the flow in the heating water pipe 12 or activate the water flow adjusting device 17, to decrease the flow in the sanitary water pipe 12, to relatively increase the flow in the heating water pipe 13), so as to ensure that the water amounts in the heating water pipe 13 and the sanitary water pipe 12 can normally operate, and the heating device starts heating. If the flow in the heating water pipeline 13 meets the condition, the circulation-protecting device keeps the current working state, and the heating device starts heating.
The working flow of starting the heating mode and then starting the zero-cold water mode is as follows: as shown in fig. 11, the water heater is in the heating mode, the zero-cold-water mode is set, and the second water flow sensor 24 (water flow sensor M2) detects whether the water flow rate in the heating water pipe 13 is too low. If the flow rate in the heating water pipe 13 is too low, the circulation protective device is activated (the second water pump 16 is activated to increase the flow rate in the heating water pipe 13 or activate the water flow adjusting device 17 to reduce the flow rate in the sanitary water pipe 12, thereby relatively increasing the flow rate in the heating water pipe 13), thereby ensuring that the water flow rates in the heating water pipe 13 and the sanitary water pipe 12 can be normally operated. Then, the outlet water temperature sensor 27 detects the water temperature T2, if T2 is less than or equal to TZeroThen adjust itThe load of the combustion system is saved, and when the preheating of the zero cold water is finished, the second two-position two-way valve 20 (the two-position two-way valve S2) is closed; if T2 > TZeroThe combustion system 2 is stopped. If the flow rate in the heating water pipeline 13 meets the condition, the outlet water temperature T2 detected by the outlet water temperature sensor 27 is detected, and if T2 is less than or equal to TZeroThe load of the combustion system is adjusted, and when the zero cold water preheating is finished, the second two-position two-way valve 20 (the two-position two-way valve S2) is closed; if T2 > TZeroAnd the combustion system stops working.
In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations to the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A gas water heater capable of heating comprises a shell (1), wherein a heat exchange system (3) and a combustion system (2) are arranged in the shell (1); the heat exchange system (3) is provided with a water inlet end (31) and a water outlet end (32), the water inlet end (31) is communicated with a water inlet (4) arranged on the shell (1) through a main water inlet pipeline (5), and a first water flow sensor (26) and a water inlet temperature sensor (25) are arranged on the main water inlet pipeline (5); still be provided with bathroom delivery port (6), heating delivery port (7) and heating return water mouth (8) on casing (1), heating return water mouth (8) through heating return water pipeline (9) with main inlet channel (5) are linked together, be provided with on heating return water pipeline (9) and be used for heating hydrologic cycle's first water pump (10), gas heater still includes the controller, the signal output part of first water flow sensor (26) and intake temperature sensor (25) is connected with the signal input part of controller, the signal output part of controller respectively with the control end of first water pump (10) and the control end electricity of combustion system (2) are connected, its characterized in that: go out water end (32) and be equipped with first three-way valve (11), bathroom delivery port (6) through bathroom water piping (12) with the first port of first three-way valve (11) links to each other, heating delivery port (7) through heating water piping (13) with the second port of first three-way valve (11) links to each other, the third port of first three-way valve (11) with it passes through the pipeline intercommunication to go out water end (32).
2. A heatable gas water heater as claimed in claim 1, wherein: the water inlet (4) is communicated with a second three-way valve (30), a first port of the second three-way valve (30) is communicated with a water inlet end (31) through a main water inlet pipeline (5), a second port of the second three-way valve (30) is communicated with the bathroom water pipeline (12) through a bypass pipeline (14), a third port of the second three-way valve (30) is communicated with the water inlet (4) through the main water inlet pipeline (5), and the bypass pipeline (14) is communicated with the bathroom water pipeline (12) and provided with a water mixing device.
3. A heatable gas water heater as claimed in claim 2, wherein: a pipeline between the water outlet end (32) and the first three-way valve (11) is provided with a water outlet temperature sensor (27); a bathroom outlet water temperature sensor (28) is arranged at the position, close to the bathroom water outlet (6), of the bathroom water pipeline (12).
4. A heatable gas water heater as claimed in claim 2, wherein: the water mixing device is an electronic water mixing constant-temperature adjusting valve (15) or a water mixing tank (38).
5. A heatable gas water heater as claimed in any one of claims 1 to 4, wherein: and the bathroom water pipeline (12) or the heating water pipeline (13) is also provided with a circulation protection device which ensures heating backwater circulation when the bathroom water outlet (6) and the heating water outlet (7) simultaneously discharge water.
6. A heatable gas water heater as claimed in claim 5, wherein: and a second water flow sensor (24) is arranged on the heating water pipeline (13).
7. A heatable gas water heater as claimed in claim 6, wherein: the circulation protection device is a second water pump (16) arranged on the heating water pipeline (13) or a water flow adjusting device (17) arranged on the bathroom water pipeline (12).
8. A heatable gas water heater as claimed in claim 1, wherein: a bathroom water return port (18) is further formed in the shell (1), and the bathroom water return port (18) is communicated with the heating water return pipeline (9) through a bathroom water return pipeline (19); the bathroom water return pipeline (19) and the heating water return pipeline (9) are communicated and are positioned on one side, close to the heating water return port (8), of the first water pump (10).
9. A heatable gas water heater as claimed in claim 8, wherein: a second two-position two-way valve (20) and a bathroom return water temperature sensor (21) are arranged on the bathroom return water pipeline (19) and close to the bathroom return water port (18); and a first valve port of the second two-position two-way valve (20) is communicated with the bathroom water return port (18) through a bathroom water return pipeline (19), and a second valve port of the second two-position two-way valve (20) is communicated with the heating water return pipeline (9) through the bathroom water return pipeline (19).
10. A heatable gas water heater as claimed in claim 9, wherein: a first two-position two-way valve (22) and a heating return water temperature sensor (23) are arranged on one side, close to the heating return water port (8), of the heating return water pipeline (9); and a first valve port of the first two-position two-way valve (22) is communicated with the heating water return port (8) through a heating water return pipeline (9), and a second valve port of the first two-position two-way valve (22) is communicated with one port of the first water pump (10) through the heating water return pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020718310.8U CN212339621U (en) | 2020-04-30 | 2020-04-30 | Gas water heater capable of heating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020718310.8U CN212339621U (en) | 2020-04-30 | 2020-04-30 | Gas water heater capable of heating |
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| Publication Number | Publication Date |
|---|---|
| CN212339621U true CN212339621U (en) | 2021-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020718310.8U Active CN212339621U (en) | 2020-04-30 | 2020-04-30 | Gas water heater capable of heating |
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| CN (1) | CN212339621U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412648A (en) * | 2020-04-30 | 2020-07-14 | 广东万和新电气股份有限公司 | Gas water heater capable of heating and control method thereof |
| CN114198904A (en) * | 2021-12-07 | 2022-03-18 | 广东万和热能科技有限公司 | Gas heating water heater |
| CN114739015A (en) * | 2022-04-15 | 2022-07-12 | 宁波方太厨具有限公司 | Heating control method of gas water heater |
| CN114941907A (en) * | 2021-02-10 | 2022-08-26 | 芜湖美的厨卫电器制造有限公司 | Heating control method, gas water heater and readable storage medium |
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2020
- 2020-04-30 CN CN202020718310.8U patent/CN212339621U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111412648A (en) * | 2020-04-30 | 2020-07-14 | 广东万和新电气股份有限公司 | Gas water heater capable of heating and control method thereof |
| CN114941907A (en) * | 2021-02-10 | 2022-08-26 | 芜湖美的厨卫电器制造有限公司 | Heating control method, gas water heater and readable storage medium |
| CN114198904A (en) * | 2021-12-07 | 2022-03-18 | 广东万和热能科技有限公司 | Gas heating water heater |
| CN114739015A (en) * | 2022-04-15 | 2022-07-12 | 宁波方太厨具有限公司 | Heating control method of gas water heater |
| CN114739015B (en) * | 2022-04-15 | 2023-03-24 | 宁波方太厨具有限公司 | Heating control method of gas water heater |
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