CN109737605B - Zero-cold-water preheating device for gas heating water heater and control method thereof - Google Patents
Zero-cold-water preheating device for gas heating water heater and control method thereof Download PDFInfo
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- 239000008236 heating water Substances 0.000 title claims abstract description 19
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Abstract
The invention provides a zero cold water preheating device for a gas heating water heater and a control method thereof, wherein the control method comprises the steps of starting, temperature detection, cyclic heating, low-temperature heating, constant-temperature heating and the like, the preheating device comprises a water return pipe arranged between a water inlet pipe and a water outlet pipe of a furnace body, a water return pump is arranged on the water return pipe and used for returning water in the water outlet pipe into the furnace body for heating, a main controller electrically connected with the water return pump, a water flow sensor and a gas proportional valve are arranged in the furnace body and respectively electrically connected with the main controller, a preheating switch electrically connected with the main controller is arranged on the furnace body and used for starting a preheating cyclic program of the main controller, a temperature sensor is arranged on the water outlet pipe and used for sensing the temperature of the water in the water outlet pipe and transmitting corresponding data to the main controller, and the main controller is used for calculating required load according to the water flow data and the water temperature And (6) operating the pump.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of gas heating water heaters, in particular to a zero-cold-water preheating device for a gas heating water heater and a control method thereof.
[ background of the invention ]
At present, a gas heating water heater sold in the market is in an instant heating type heating bathroom state, a machine burns and heats bathroom water after a tap is opened, but unheated cold water exists in a pipeline between the machine and a use environment of the machine, the machine cannot be used immediately and needs to wait for hot water to flow out and completely discharge the part of cold water for use, and therefore hot water waiting and waste of water resources are caused.
[ summary of the invention ]
The invention aims to provide a zero cold water preheating device for a gas heating water heater and a control method thereof, wherein the zero cold water preheating device can preheat unheated cold water in a pipeline between a machine and a use environment in advance to realize a zero cold water function.
The purpose of the invention is realized as follows:
the utility model provides a zero cold water preheating device for gas heating water heater, is including locating the wet return between the inlet tube of furnace body and the outlet pipe, be equipped with the return water pump on the wet return in order being used for flowing back the water in the outlet pipe to the furnace body and heating, be equipped with in the furnace body with main control unit that the return water pump electricity is connected and respectively with main control unit electricity-connected rivers sensor and gas proportional valve, the gas proportional valve is used for adjusting heating efficiency, rivers sensor is used for detecting discharge and conveys corresponding data to main control unit, be equipped with on the furnace body with the preheating switch that main control unit electricity is connected is in order to be used for starting the preheating cycle procedure of main control unit, is equipped with temperature sensor on the outlet pipe in order to be used for responding to the temperature of the water in the outlet pipe and conveys corresponding data to main control unit, main control unit is used for calculating required load and controlling the aperture of gas proportional valve and.
The control method of the zero cold water preheating device for the gas heating water heater comprises the following steps:
a: starting, pressing a preheating switch to enable the main controller to start a preheating circulation program;
b: detecting the temperature, wherein the temperature sensor detects the temperature of water in the water pipe and transmits corresponding data to the main controller;
c: circularly heating, wherein if the temperature of the water in the water outlet pipe is detected to be lower than the preset circulating water temperature T in the step B, the main controller controls the water return pump to start to work so as to enable the water in the water outlet pipe to flow back into the furnace body, meanwhile, the main controller controls the gas proportional valve to be opened to the maximum fire so as to heat the backflow water, in the process of circularly heating, the temperature sensor continuously detects the temperature of the water in the water outlet pipe and transmits corresponding data to the main controller, if the temperature of the water is detected to reach T-5K, the step D is executed, and if the temperature of the water is not reached, the step is continuously executed;
d: heating at low temperature, wherein the main controller controls the gas proportional valve to be opened to the minimum fire to slowly heat the return water, in the low-temperature heating process, the temperature sensor continuously detects the temperature of the water in the water outlet pipe and transmits corresponding data to the main controller, if the temperature of the water is detected to reach T, the step E is executed, and if the temperature of the water does not reach T, the step is continuously executed;
e: and (4) heating at constant temperature, wherein when the heating is continued for T1 time or the water temperature reaches T +5K, the main controller controls the gas proportional valve to be closed to stop heating.
The control method of the zero-cold-water preheating device for the gas heating water heater further comprises the following steps:
f: the method comprises the steps that cyclic waiting is carried out, a main controller controls a water return pump to start to work so that water in a water outlet pipe flows in a circulating mode in a furnace body and the water return pipe, the water return pump enters a standby state after starting to work for T2 time, the main controller controls the water return pump to start to work again for T2 time after waiting for T3 time, in the cyclic waiting process, a temperature sensor continuously detects the temperature of the water in the water outlet pipe and transmits corresponding data to the main controller, if the temperature of the water is detected to be reduced to T-10K, a step C is executed, and if the temperature of the water is not reduced to T-10K, the step is continuously executed; the step is executed after the step E or when the temperature of the water in the water outlet pipe is detected to be greater than or equal to the preset circulating water temperature T in the step B;
the control method of the zero-cold-water preheating device for the gas heating water heater further comprises the following steps:
g: stopping the preheating cycle, automatically stopping the preheating cycle program after the time t4, or automatically stopping the preheating cycle program when the water flow sensor senses that the water flow is in a normal bathroom state in the step E or the step F.
In the above-described method for controlling the zero-cold-water preheating device for the gas-heating water heater, the preset circulating water temperature T is 318.15K, T1 is 2min, T2 is 30s, T3 is 30min, and T4 is 2 h.
Compared with the prior art, the invention has the following technical characteristics:
1. the return water pump can flow back the water in the outlet pipe to the furnace body and reheat to can make the cold water of outlet pipe preheat, and then realize zero cold water function and avoid waiting for hydrothermal process, thereby improved the travelling comfort of bathroom, and reduced the waste of water resource.
2. In the step of circulating heating, the temperature sensor continuously detects the water temperature in the water outlet pipe, and when the water temperature reaches 45 ℃, the step of heating is switched to the step of low-temperature heating, the control is very intelligent, and the energy utilization efficiency can be improved.
3. The constant temperature heating step is used for preserving the heat of the circulating water, so that the heat preservation time is prolonged.
4. The circulation waiting step improves the heat preservation capacity of the circulating water while fully utilizing the electric energy.
5. The step G can avoid waste of power.
[ description of the drawings ]
Embodiments of the invention will be described in further detail below with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a logic control block diagram of the present invention;
FIG. 3 is a perspective view of the present invention;
FIG. 4 is a schematic plan view of the present invention;
fig. 5 is a second schematic plan view of the present invention.
[ detailed description ] embodiments
The utility model provides a zero cold water preheating device for gas heating water heater, including locating the wet return 4 between inlet tube 2 and the outlet pipe 3 of furnace body 1, be equipped with return pump 5 on the wet return 4 in order to be used for flowing back the water in the outlet pipe 3 to the furnace body 1 in and heat, be equipped with the main control unit of being connected with return pump 5 electricity in the furnace body 1 and respectively with main control unit electricity connected rivers sensor and gas proportional valve, the gas proportional valve is used for adjusting heating efficiency, rivers sensor is used for detecting discharge and conveys corresponding data to main control unit, be equipped with the preheating switch of being connected with main control unit electricity on the furnace body 1 and be used for starting main control unit's preheating cycle procedure, be equipped with temperature sensor on the outlet pipe 3 in order to respond to the temperature of the water in the outlet pipe 3 and convey corresponding data to main control unit, main control unit is used for calculating required load and controlling the aperture of gas proportional valve and controlling the work of. The water return pump 5 specifically adopts daily electric power generation NTWF301MB1, the main controller specifically adopts Qi Ke QK-JLG220VK800, the water flow sensor specifically adopts pancuo 8.1Q-3, the gas proportional valve specifically adopts echoed EBP2008N, and the temperature sensor specifically adopts pancuo G1210K beta 3435.
The control method of the zero-cold-water preheating device for the gas heating water heater comprises the following steps of:
a: starting, pressing a preheating switch to enable the main controller to start a preheating circulation program;
b: temperature detection, wherein a temperature sensor detects the temperature of water in the water pipe 3 and transmits corresponding data to a main controller;
c: circularly heating, wherein if the temperature of the water in the water outlet pipe 3 is detected to be lower than the preset circulating water temperature T in the step B, the main controller controls the water return pump 5 to start to work so as to enable the water in the water outlet pipe 3 to flow back into the furnace body 1, meanwhile, the main controller controls the gas proportional valve to be opened to the maximum fire so as to heat the backflow water, in the process of circularly heating, the temperature sensor continuously detects the temperature of the water in the water outlet pipe 3 and transmits corresponding data to the main controller, if the temperature of the water is detected to reach T-5K, the step D is executed, and if the temperature of the water is not reached, the step is continuously executed;
d: heating at low temperature, wherein the main controller controls the gas proportional valve to be opened to the minimum fire to slowly heat the return water, in the low-temperature heating process, the temperature sensor continuously detects the temperature of the water in the water outlet pipe 3 and transmits corresponding data to the main controller, if the temperature of the water reaches T, the step E is executed, and if the temperature of the water does not reach T, the step is continuously executed;
e: and (4) heating at constant temperature, wherein when the heating is continued for T1 time or the water temperature reaches T +5K, the main controller controls the gas proportional valve to be closed to stop heating.
Compared with the first control method, the second control method of the zero-cold-water preheating device for the gas heating water heater further comprises the following steps:
f: the method comprises the steps that cyclic waiting is carried out, a main controller controls a water return pump 5 to start to work so that water in a water outlet pipe 3 flows in a circulating mode in a furnace body 1 and a water return pipe 4, the water return pump 5 enters a standby state after starting to work for T2 time, the main controller controls the water return pump 5 to start to work for T2 time again after waiting for T3 time, in the cyclic waiting process, a temperature sensor continuously detects the temperature of the water in the water outlet pipe 3 and transmits corresponding data to the main controller, if the temperature of the water is detected to be reduced to T-10K, a step C is executed, and if the temperature of the water is not reduced to T-10K, the step is continuously executed; the step is executed after the step E or when the temperature of the water in the water outlet pipe 3 is detected to be greater than or equal to the preset circulating water temperature T in the step B;
compared with the second control method, the third control method of the zero-cold-water preheating device for the gas heating water heater further comprises the following steps:
g: stopping the preheating circulation, automatically stopping the preheating circulation program after the time t4 (controlled by a time relay and started to time when a preheating switch is pressed down), or automatically stopping the preheating circulation program when the water flow sensor senses that the water flow is in a normal bathroom state (large flow) in the step E or the step F.
Most preferably, the preset circulating water temperature T is 318.15K, T1 is 2min, T2 is 30s, T3 is 30min, and T4 is 2 h.
Claims (3)
1. The control method of the zero cold water preheating device for the gas heating water heater is characterized in that the zero cold water preheating device comprises a water return pipe (4) arranged between a water inlet pipe (2) and a water outlet pipe (3) of a furnace body (1), a water return pump (5) is arranged on the water return pipe (4) and used for returning water in the water outlet pipe (3) to the furnace body (1) for heating, a main controller electrically connected with the water return pump (5) and a water flow sensor and a gas proportional valve which are respectively electrically connected with the main controller are arranged in the furnace body (1), the gas proportional valve is used for adjusting heating efficiency, the water flow sensor is used for detecting water flow and transmitting corresponding data to the main controller, a preheating switch electrically connected with the main controller is arranged on the furnace body (1) and used for starting a preheating circulation program of the main controller, and a temperature sensor is arranged on the water outlet pipe (3) and used for sensing the temperature of the water in the water outlet pipe (3 The data of the water return pump is transmitted to a main controller, and the main controller is used for calculating the required load according to the water flow data and the water temperature data, controlling the opening of a gas proportional valve and controlling the work of a water return pump (5); the control method comprises the following steps:
a: starting, pressing a preheating switch to enable the main controller to start a preheating circulation program;
b: temperature detection, wherein a temperature sensor detects the temperature of water in the water outlet pipe (3) and transmits corresponding data to the main controller;
c: circularly heating, wherein if the temperature of the water in the water outlet pipe (3) is detected to be lower than the preset circulating water temperature T in the step B, the main controller controls the water return pump (5) to start to work so as to enable the water in the water outlet pipe (3) to flow back into the furnace body (1), meanwhile, the main controller controls the gas proportional valve to be opened to the maximum fire so as to heat the flowing back water, in the process of circularly heating, the temperature sensor continuously detects the temperature of the water in the water outlet pipe (3) and transmits corresponding data to the main controller, if the temperature of the water is detected to reach T-5K, the step D is executed, and if the temperature of the water is not reached, the step is continuously executed;
d: heating at low temperature, wherein the main controller controls the gas proportional valve to be opened to the minimum fire to slowly heat return water, in the low-temperature heating process, the temperature sensor continuously detects the temperature of water in the water outlet pipe (3) and transmits corresponding data to the main controller, if the temperature of the water reaches T, the step E is executed, and if the temperature of the water does not reach T, the step is continuously executed;
e: heating at constant temperature, wherein when the heating is continued for T1 time or the water temperature reaches T +5K, the main controller controls the gas proportional valve to be closed to stop heating;
f: the method comprises the steps that cyclic waiting is carried out, a main controller controls a water return pump (5) to start to work so that water in a water outlet pipe (3) flows in a circulating mode in a furnace body (1) and a water return pipe (4), the water return pump (5) enters a standby state after starting to work for T2 time, the main controller controls the water return pump (5) to start to work for T2 time again after waiting for T3 time, in the cyclic waiting process, a temperature sensor continuously detects the temperature of the water in the water outlet pipe (3) and transmits corresponding data to the main controller, if the temperature of the water is detected to be reduced to T-10K, a step C is executed, and if the temperature of the water is not reduced to T-10K, the step is continuously executed; the step is executed after the step E or when the temperature of the water in the water outlet pipe (3) is detected to be larger than or equal to the preset circulating water temperature T in the step B.
2. The control method of the zero-cold-water preheating device for the gas-heating water heater according to claim 1, further comprising the steps of:
g: stopping the preheating cycle, automatically stopping the preheating cycle program after the time t4, or automatically stopping the preheating cycle program when the water flow sensor senses that the water flow is in a normal bathroom state in the step E or the step F.
3. The control method of the zero cold water preheating device for the gas heating water heater according to claim 2, wherein the preset circulating water temperature T is 318.15K, T1 is 2min, T2 is 30s, T3 is 30min, and T4 is 2 h.
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| CN110285578A (en) * | 2019-05-13 | 2019-09-27 | 广东万家乐燃气具有限公司 | A kind of zero cold water circulating system |
| CN110657583B (en) * | 2019-09-16 | 2021-12-10 | 广东万家乐燃气具有限公司 | Water temperature control method and device |
| CN110793187B (en) * | 2019-12-09 | 2023-10-31 | 珠海格力电器股份有限公司 | Gas water heating system and control method thereof |
| CN110953727A (en) * | 2019-12-16 | 2020-04-03 | 华帝股份有限公司 | Constant temperature control method of gas water heater |
| CN111520918A (en) * | 2020-05-06 | 2020-08-11 | 广州迪森家居环境技术有限公司 | Zero-cold-water control method for wall-mounted boiler |
| CN111964269B (en) * | 2020-07-27 | 2022-01-11 | 广东万和新电气股份有限公司 | Gas water heater and automatic judgment and control method for rotating speed precision of fan of gas water heater |
| CN112484312A (en) * | 2020-12-03 | 2021-03-12 | 芜湖美的厨卫电器制造有限公司 | Control method and control device for zero-cold-water gas water heater and processor |
| CN113587443A (en) * | 2021-08-03 | 2021-11-02 | 广州市果豆科技有限责任公司 | Intelligent water return pump control method and system |
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| JPH0810054B2 (en) * | 1989-08-07 | 1996-01-31 | リンナイ株式会社 | Combustor controller |
| JP2002130659A (en) * | 2000-10-26 | 2002-05-09 | Tokyo Gas Co Ltd | Gas combustion device with air-fuel ratio proportional control means |
| CN102778019B (en) * | 2011-05-11 | 2015-05-06 | 宁波帅康热水器有限公司 | Instantaneous gas water heater with accurate temperature control |
| CN102374665B (en) * | 2011-09-26 | 2016-01-20 | 广东万家乐燃气具有限公司 | A kind of automatic temperature control system of central fuel gas water heating device and method |
| CN103090547B (en) * | 2013-02-01 | 2015-12-23 | 广东万和新电气股份有限公司 | The control method of gas-heating water heater |
| CN106051762A (en) * | 2016-06-08 | 2016-10-26 | 中山市卡洛力热能科技有限公司 | A new type of fully preheated mixed gas heating system and its control method |
| CN106440332B (en) * | 2016-10-27 | 2022-04-12 | 广东万家乐燃气具有限公司 | Central gas water heater with memory alloy one-way valve |
| CN206430236U (en) * | 2016-12-29 | 2017-08-22 | 广东万和热能科技有限公司 | The combined system of gas-heating water heater and storage tank |
| CN107461933A (en) * | 2017-06-21 | 2017-12-12 | 威能(无锡)供热设备有限公司 | Hot water facility and the hot-water heating system comprising the hot water facility |
| CN207438924U (en) * | 2017-11-25 | 2018-06-01 | 宁波方太厨具有限公司 | The control system of water pump of gas heater |
| CN108361996A (en) * | 2018-03-06 | 2018-08-03 | 芜湖美的厨卫电器制造有限公司 | A kind of water heater and water feeding of heater control method |
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