CN105509302B - Constant temperature gas water heater of remote control temperature given value - Google Patents
Constant temperature gas water heater of remote control temperature given value Download PDFInfo
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- CN105509302B CN105509302B CN201610000431.7A CN201610000431A CN105509302B CN 105509302 B CN105509302 B CN 105509302B CN 201610000431 A CN201610000431 A CN 201610000431A CN 105509302 B CN105509302 B CN 105509302B
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- 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
- F24H1/12—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 in which the water is kept separate from the heating medium
- F24H1/14—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 in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form
- F24H1/145—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 in which the water is kept separate from the heating medium by tubes, e.g. bent in serpentine form 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)
- Domestic Hot-Water Supply Systems And Details Of Heating Systems (AREA)
Abstract
The invention discloses a constant-temperature gas water heater capable of remotely controlling a temperature given value, which comprises two hot water outlets, wherein the temperature given value of the constant-temperature gas water heater is changed by adopting a method of remotely controlling the flow of two paths of hot water through a water valve; when the hot water flow of the first hot water outlet is relatively increased and the hot water flow of the second hot water outlet is relatively decreased, the given temperature value is increased; when the hot water flow of the first hot water outlet is relatively reduced and the hot water flow of the second hot water outlet is relatively increased, the given temperature value is reduced. The device does not need a wired or wireless remote controller, can realize the remote control of the hot water temperature set value of the constant-temperature gas water heater, and has stable and reliable control result.
Description
Technical Field
The invention relates to a constant-temperature gas water heater, in particular to a constant-temperature gas water heater capable of remotely controlling a given temperature value.
Background
The constant temperature gas water heater can keep the temperature of the outlet water constant, but if the temperature is not properly set, particularly when a user takes a shower, the temperature of the gas water heater without a wireless remote control or a remote wire control cannot be adjusted, and the gas water heater is easy to extinguish by adding cold water through the water mixing valve. The temperature of the gas water heater is adjusted by adopting wireless remote control, and signals of a remote controller cannot be transmitted to the gas water heater on many occasions due to the limitation of the installation position. When a remote wire control mode is adopted, the special waterproof wired remote controller is high in cost, wires need to be buried in advance, the electronic wired remote controller works in a wet environment such as a bathroom for a long time, and the failure rate of the electronic wired remote controller is high.
Disclosure of Invention
The invention aims to provide a solution for remotely controlling the hot water temperature of a constant-temperature gas water heater, namely the constant-temperature gas water heater capable of remotely controlling the given temperature value.
In order to achieve the above object, the present invention provides a constant temperature gas water heater for remotely controlling a given temperature value, comprising:
The constant-temperature gas water heater comprises a controller, a heat exchanger, a first Hall water flow sensor, a second Hall water flow sensor, a first hot water outlet, a second hot water outlet, a cold water inlet, a cold water pipe, a main hot water pipe, a first hot water pipe and a second hot water pipe.
The cold water pipe is connected between the cold water inlet and the heat exchanger; one end of the first hot water pipe is connected to the first hot water outlet, and the other end of the first hot water pipe is communicated to the water outlet end of the main hot water pipe; one end of the second hot water pipe is connected to the second hot water outlet, and the other end of the second hot water pipe is communicated to the water outlet end of the main hot water pipe; the water inlet end of the main hot water pipe is connected to the heat exchanger.
The first Hall water flow sensor is arranged on the first hot water pipe and used for detecting the outlet hot water flow of the first hot water outlet; and the second Hall water flow sensor is arranged on the second hot water pipe and used for detecting the hot water flow at the outlet of the second hot water outlet.
the first Hall water flow sensor is provided with a first pulse signal output end, and the second Hall water flow sensor is provided with a second pulse signal output end; the controller is provided with a first pulse signal input end and a second pulse signal input end, and the first pulse signal input end and the second pulse signal input end are respectively connected to the first pulse signal output end and the second pulse signal output end.
The constant-temperature gas water heater with the remote control temperature given value controls the temperature given value of the constant-temperature gas water heater according to the relative size of the pulse frequency of the first pulse signal and the second pulse signal; when the pulse frequency of the first pulse signal is relatively increased and the pulse frequency of the second pulse signal is relatively decreased, the temperature given value is increased; when the pulse frequency of the first pulse signal is relatively reduced and the pulse frequency of the second pulse signal is relatively increased, the temperature set value is reduced.
The given temperature value is according to the formula
and calculating, wherein T is a temperature given value, F1 and F2 are the pulse frequencies of the first pulse signal and the second pulse signal respectively, T0 is a central temperature given value, and K is a temperature adjusting range coefficient.
the step of calculating the given temperature value by the controller is as follows:
Step S1, initialization;
Step S2, sampling the hot water flow of the first hot water outlet and the second hot water outlet to obtain the pulse frequency of the first pulse signal and the second pulse signal;
Step S3, calculating the temperature set value of the constant temperature gas water heater;
Step S4, other processing and waiting; when the next sampling timing arrives, the process proceeds to step S2.
The relative sizes of the pulse frequencies of the first pulse signal and the second pulse signal are controlled by the constant-temperature gas water heater, the first connecting water pipe, the second connecting water pipe and the water mixing valve together; 2 water inlets of the water mixing valve are respectively connected to a first hot water outlet and a second hot water outlet of the constant-temperature gas water heater through a first connecting water pipe and a second connecting water pipe; the hot water flow of the outlets of the first hot water outlet and the second hot water outlet is changed by adjusting the water mixing valve, so that the pulse frequency of the first pulse signal and the second pulse signal is changed.
The relative size of the pulse frequency of the first pulse signal and the second pulse signal is controlled by a constant-temperature gas water heater, a first connecting water pipe, a second connecting water pipe, a first regulating valve and a second regulating valve; the water inlet ends of the first connecting water pipe and the second connecting water pipe are respectively connected to a first hot water outlet and a second hot water outlet of the constant-temperature gas water heater; the water outlet ends of the first connecting water pipe and the second connecting water pipe are communicated to form a water outlet end; the first regulating valve is arranged on the first connecting water pipe, and the second regulating valve is arranged on the second connecting water pipe; the hot water flow of the outlets of the first hot water outlet and the second hot water outlet is changed by adjusting the first adjusting valve and the second adjusting valve respectively, so that the pulse frequency of the first pulse signal and the second pulse signal is changed.
The constant-temperature gas water heater further comprises a power supply module, a hot water temperature detection module, a gas flow control driving module, a fan control driving module and an ignition control and flame detection module.
The invention has the advantages that a wired or wireless remote controller is not needed, the method of controlling the flow of two paths of hot water by the water valve is adopted, the remote control of the hot water temperature set value of the constant-temperature gas water heater is realized, and the control result is stable and reliable.
Drawings
Fig. 1 is a structural block diagram of an embodiment 1 of a constant-temperature gas water heater for remotely controlling a temperature given value.
Fig. 2 is a structural block diagram of an embodiment 2 of the constant-temperature gas water heater for remotely controlling a temperature given value.
Fig. 3 is a schematic block diagram of a flow sensing circuit.
Fig. 4 is a flowchart of calculating a given temperature value.
Detailed Description
The present invention will be described in further detail with reference to examples and drawings, but the present invention is not limited thereto.
a structural block diagram of an embodiment 1 of the constant-temperature gas water heater with a remote temperature set value control is shown in fig. 1, wherein the constant-temperature gas water heater comprises a heat exchanger 101, a first hall water flow sensor 201, a second hall water flow sensor 202, a first hot water outlet 203, a second hot water outlet 204, a cold water inlet 205, a cold water pipe 401, a main hot water pipe 402, a first hot water pipe 403 and a second hot water pipe 404; and a water mixing valve 301, a first connecting water pipe 405, a second connecting water pipe 406, a mixed hot water pipe 407 and a water outlet nozzle 302 which realize remote control of temperature set value together with the constant temperature gas water heater.
The constant-temperature gas water heater is provided with 1 cold water inlet and 2 hot water outlets, and a cold water pipe 401 is connected between the cold water inlet 205 and the heat exchanger 101; one end of the first hot water pipe 403 is connected to the first hot water outlet 203, and the other end is connected to the water outlet end of the main hot water pipe 402; one end of the second hot water pipe 404 is connected to the second hot water outlet 204, and the other end is connected to the water outlet end of the main hot water pipe 402; the water inlet end of the main hot water pipe 402 is connected to the heat exchanger 101. The first hall water flow rate sensor 201 is installed on the first hot water pipe 403, and the second hall water flow rate sensor 202 is installed on the second hot water pipe 404.
2 water inlets of the water mixing valve 301 are respectively connected to a first hot water outlet 203 and a second hot water outlet 204 of the constant-temperature gas water heater through a first connecting water pipe 405 and a second connecting water pipe 406; the water outlet of the mixing valve 301 is connected to the water outlet nozzle 302 by a mixing hot water pipe 407. When the mixing valve 301 is a cold water and hot water mixing valve, the first connecting water pipe 405 is connected to a hot water inlet of the mixing valve 301, and the second connecting water pipe 406 is connected to a cold water inlet of the mixing valve 301.
Fig. 2 shows a block diagram of an embodiment 2 of the thermostatic gas water heater for remotely controlling a given temperature value, which is different from the embodiment 1 in that a first regulating valve 303 and a second regulating valve 304 are used to replace a water mixing valve 301, the first regulating valve 303 is installed on a first connecting water pipe 405, and the second regulating valve 304 is installed on a second connecting water pipe 406; the water outlet ends of the first connecting water pipe 405 and the second connecting water pipe 406 are connected with the mixed hot water pipe 407 by a tee joint.
The constant temperature gas water heater further comprises a controller 210, a flow detection circuit of which is shown in a schematic block diagram in fig. 3, the first hall water flow sensor 201 is provided with a first pulse signal output end OUT1 for detecting the outlet hot water flow of the first hot water outlet 203, and the signal type of the first pulse signal is pulse frequency. The second hall water flow sensor 202 is provided with a second pulse signal output end OUT2 for detecting the outlet hot water flow of the second hot water outlet 204, and the signal type of the second pulse signal is a pulse frequency. The first Hall water flow sensor 201 and the second Hall water flow sensor 202 adopt a single power supply for power supply; in fig. 3, a single power supply + VDD supplies power to the first hall water flow rate sensor 201 and the second hall water flow rate sensor 202.
The controller 210 has a first pulse signal input terminal IN1, a second pulse signal input terminal IN 2; the first pulse signal input terminal IN1 and the second pulse signal input terminal IN2 are connected to the first pulse signal output terminal OUT1 and the second pulse signal output terminal OUT2, respectively.
The working principle of the constant-temperature gas water heater with the remote control temperature given value is as follows:
Adjusting the mixing valve 301, or adjusting the first adjusting valve 303 and the second adjusting valve 304 to change the outlet hot water flow of the first hot water outlet 203 and the second hot water outlet 204, so as to change the pulse frequency of the first pulse signal and the second pulse signal; the temperature set value of the constant-temperature gas water heater is controlled by the relative magnitude of the pulse frequency of the first pulse signal and the second pulse signal; setting the pulse frequencies of the first pulse signal and the second pulse signal to be F1 and F2 respectively, and setting the temperature given value of the constant-temperature gas water heater to be T, wherein when F1 is relatively increased and F2 is relatively decreased, the temperature given value T is increased; when F1 is relatively decreased and F2 is relatively increased, the temperature set point T is decreased. In the controller 210, after the first hall water flow sensor 201 and the second hall water flow sensor 202 acquire the pulse frequencies F1 and F2 of the first pulse signal and the second pulse signal, the formula is shown
And calculating a temperature set value T of the constant-temperature gas water heater, wherein T0 is a central temperature set value, and K is a temperature adjusting range coefficient.
The water temperature control interval of a water heater is usually between 30 ℃ and 80 ℃. For example, T0 ═ 50 ℃, K ═ 20, is selected, and the temperature setpoint T is controlled at 30 ℃ to 70 ℃.
The controller 210 is composed of a microcontroller and peripheral circuits. The microcontroller is preferably a single chip microcomputer or other devices such as ARM, DSP and the like are selected. The first pulse signal input terminal IN1 and the second pulse signal input terminal IN2 are counting input terminals of a counter inside the microcontroller.
the constant-temperature gas water heater further comprises a hot water temperature detection module, a gas flow control driving module, a fan control driving module, an ignition control and flame detection module and the like. Further, the constant temperature gas water heater also selectively comprises a part of or all of the modules in the cold water temperature detection module, the temperature value display module, the wind pressure detection module and the buzzer module.
The constant-temperature gas water heater also comprises a power supply module which is used for providing a single power supply + VDD and other power supplies and supplying power to the controller 210, the first flow sensor 201, the second flow sensor 202 and other modules.
The flow of the controller 210 calculating the given temperature value is shown in fig. 4, and includes the following steps:
Step S1, initialization;
Step S2, sampling the hot water flow at the outlets of the first hot water outlet 203 and the second hot water outlet 204, and acquiring the pulse frequencies F1 and F2 of the first pulse signal and the second pulse signal;
step S3, calculating a temperature given value T of the constant-temperature gas water heater;
Step S4, other processing and waiting; when the next sampling timing arrives, the process proceeds to step S2.
The controller 210 calculates the temperature set value T of the constant temperature gas water heater, and performs other control of the constant temperature gas water heater. The other processing and waiting include water temperature sampling, water temperature control, gas flow control driving, fan control driving, ignition control, and the like, which need to be completed by the controller 210, and waiting. After the controller 210 calculates the temperature given value T, a proper control algorithm is adopted to control the heating power of the gas water heater by controlling the gas flow, so that the temperature of the hot water of the outlet water of the gas water heater can be controlled within an allowable error range near the temperature given value T, and a constant temperature function is realized.
the control of the next sampling time is realized by software delay or timer timing by the controller 210.
the first hall water flow sensor 201 and the second hall water flow sensor 202 preferably select hall water flow sensors in the same range.
the above description is only an example of the present invention and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (9)
1. The utility model provides a constant temperature gas heater of remote control temperature setpoint which characterized in that:
The constant-temperature gas water heater comprises a controller, a heat exchanger, a first Hall water flow sensor, a second Hall water flow sensor, a first hot water outlet, a second hot water outlet, a cold water inlet, a cold water pipe, a main hot water pipe, a first hot water pipe and a second hot water pipe;
the cold water pipe is connected between the cold water inlet and the heat exchanger; one end of the first hot water pipe is connected to the first hot water outlet, and the other end of the first hot water pipe is communicated to the water outlet end of the main hot water pipe; one end of the second hot water pipe is connected to the second hot water outlet, and the other end of the second hot water pipe is communicated to the water outlet end of the main hot water pipe; the water inlet end of the main hot water pipe is connected to the heat exchanger;
The first Hall water flow sensor is arranged on the first hot water pipe and used for detecting the outlet hot water flow of the first hot water outlet; the second Hall water flow sensor is arranged on the second hot water pipe and used for detecting the outlet hot water flow of the second hot water outlet;
The first Hall water flow sensor is provided with a first pulse signal output end, and the second Hall water flow sensor is provided with a second pulse signal output end; the controller is provided with a first pulse signal input end and a second pulse signal input end, and the first pulse signal input end and the second pulse signal input end are respectively connected to a first pulse signal output end and a second pulse signal output end;
The constant-temperature gas water heater controls the temperature given value of the constant-temperature gas water heater according to the relative size of the pulse frequency of the first pulse signal and the second pulse signal; when the pulse frequency of the first pulse signal is relatively increased and the pulse frequency of the second pulse signal is relatively decreased, the temperature given value is increased; when the pulse frequency of the first pulse signal is relatively reduced and the pulse frequency of the second pulse signal is relatively increased, the temperature set value is reduced.
2. a thermostatic gas water heater of claim 1 with remote control of temperature set point, characterized by: the relative sizes of the pulse frequencies of the first pulse signal and the second pulse signal are controlled by the constant-temperature gas water heater, the first connecting water pipe, the second connecting water pipe and the water mixing valve together; 2 water inlets of the water mixing valve are respectively connected to a first hot water outlet and a second hot water outlet of the constant-temperature gas water heater through a first connecting water pipe and a second connecting water pipe; the hot water flow of the outlets of the first hot water outlet and the second hot water outlet is changed by adjusting the water mixing valve, so that the pulse frequency of the first pulse signal and the second pulse signal is changed.
3. A thermostatic gas water heater of claim 1 with remote control of temperature set point, characterized by: the relative sizes of the pulse frequencies of the first pulse signal and the second pulse signal are controlled by the constant-temperature gas water heater, the first connecting water pipe, the second connecting water pipe, the first regulating valve and the second regulating valve together; the water inlet ends of the first connecting water pipe and the second connecting water pipe are respectively connected to a first hot water outlet and a second hot water outlet of the constant-temperature gas water heater; the water outlet ends of the first connecting water pipe and the second connecting water pipe are communicated to form a water outlet end; the first regulating valve is arranged on the first connecting water pipe, and the second regulating valve is arranged on the second connecting water pipe; the hot water flow of the outlets of the first hot water outlet and the second hot water outlet is changed by adjusting the first adjusting valve and the second adjusting valve respectively, so that the pulse frequency of the first pulse signal and the second pulse signal is changed.
4. a thermostatic gas water heater of claim 1 with remote control of temperature set point, characterized by: the given temperature value is according to the formula
And calculating, wherein T is a temperature given value, F1 and F2 are the pulse frequencies of the first pulse signal and the second pulse signal respectively, T0 is a central temperature given value, and K is a temperature adjusting range coefficient.
5. A thermostatic gas water heater of claim 4 with remote control of temperature set point, characterized by: the given value of the central temperature T0 is 50 ℃, and the coefficient K of the temperature adjusting range is 20.
6. a thermostatic gas water heater of claim 1 with remote control of temperature set point, characterized by: the first Hall water flow sensor and the second Hall water flow sensor are Hall water flow sensors in the same measuring range.
7. a thermostatic gas water heater of claim 1 with remote control of temperature set point, characterized by: the step of calculating the given temperature value by the controller is as follows:
Step S1, initialization;
Step S2, sampling the hot water flow of the first hot water outlet and the second hot water outlet to obtain the pulse frequency of the first pulse signal and the second pulse signal;
Step S3, calculating the temperature set value of the constant temperature gas water heater;
step S4, other processing and waiting; when the next sampling timing arrives, the process proceeds to step S2.
8. a thermostatic gas water heater of claim 7 with remote control of temperature setpoint, wherein: the other processing and waiting are other control and waiting of the constant-temperature gas water heater which are required by the controller besides the calculation of the temperature set value of the constant-temperature gas water heater.
9. a thermostatic gas water heater of claim 1 with remote control of temperature set point, characterized by: the constant-temperature gas water heater further comprises a power supply module, a hot water temperature detection module, a gas flow control driving module, a fan control driving module and an ignition control and flame detection module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610000431.7A CN105509302B (en) | 2016-01-04 | 2016-01-04 | Constant temperature gas water heater of remote control temperature given value |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610000431.7A CN105509302B (en) | 2016-01-04 | 2016-01-04 | Constant temperature gas water heater of remote control temperature given value |
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| CN105509302B true CN105509302B (en) | 2019-12-06 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008070906A1 (en) * | 2006-12-12 | 2008-06-19 | Rheem Australia Pty Limited | A controllable water heater |
| CN103344046A (en) * | 2013-06-28 | 2013-10-09 | 海尔集团公司 | Constant-temperature gas water heater control method and constant-temperature gas water heater |
| CN104236109A (en) * | 2013-06-24 | 2014-12-24 | 海尔集团公司 | Control method and control device of constant-temperature gas water heater |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201658004U (en) * | 2010-04-09 | 2010-12-01 | 王小丫 | Student desk |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008070906A1 (en) * | 2006-12-12 | 2008-06-19 | Rheem Australia Pty Limited | A controllable water heater |
| CN104236109A (en) * | 2013-06-24 | 2014-12-24 | 海尔集团公司 | Control method and control device of constant-temperature gas water heater |
| CN103344046A (en) * | 2013-06-28 | 2013-10-09 | 海尔集团公司 | Constant-temperature gas water heater control method and constant-temperature gas water heater |
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Inventor after: Xiao Huiqin Inventor after: Ling Yun Inventor after: Xiao Shenping Inventor after: Chen Gang Inventor after: Zeng Hongbing Inventor after: Kong Lingshuang Inventor before: Ling Yun Inventor before: Xiao Shenping Inventor before: Chen Gang Inventor before: Zeng Hongbing Inventor before: Kong Lingshuang Inventor before: Xiao Huiqin |
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Effective date of registration: 20201013 Address after: 237000 Democratic constituency of Shiji street, Anfeng Town, Shouxian County, Huainan City, Anhui Province Patentee after: Wang Jingjing Address before: 412007 School of industry, research and production, Hunan University of Technology, 88 West Taishan Road, Zhuzhou, Hunan Patentee before: HUNAN University OF TECHNOLOGY Effective date of registration: 20201013 Address after: No.76 Minfeng South Road, Nanfeng Town, Zhangjiagang City, Suzhou City, Jiangsu Province Patentee after: ZHANGJIAGANG DONGDA INDUSTRIAL TECHNOLOGY Research Institute Address before: 237000 Democratic constituency of Shiji street, Anfeng Town, Shouxian County, Huainan City, Anhui Province Patentee before: Wang Jingjing |
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