CN112503779A - Zero-cold-water wall-mounted furnace capable of improving pipeline adaptability and control method - Google Patents
Zero-cold-water wall-mounted furnace capable of improving pipeline adaptability and control method Download PDFInfo
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- CN112503779A CN112503779A CN202011486571.2A CN202011486571A CN112503779A CN 112503779 A CN112503779 A CN 112503779A CN 202011486571 A CN202011486571 A CN 202011486571A CN 112503779 A CN112503779 A CN 112503779A
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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
- 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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Abstract
本发明公开了一种可提高管路适应性的零冷水壁挂炉，其特征在于，它包括主控制器、操作器、无线控制模块、卫浴直流水泵、水流传感器、卫浴进水温度探头、板式换热器和卫浴出水温度探头，操作器连接主控制器，无线控制模块与操作器连接，板式换热器连接有卫浴循环水路；卫浴循环水路中，卫浴直流水泵和卫浴进水温度探头设置在板式换热器的进水端，卫浴出水温度探头设置在板式换热器的出水端。本发明结构简单，操作方便。
The invention discloses a zero-cold water wall-hung boiler capable of improving the adaptability of pipelines, which is characterized in that it comprises a main controller, an operator, a wireless control module, a bathroom DC water pump, a water flow sensor, a bathroom inlet water temperature probe, a plate-type changer The heater and the bathroom outlet water temperature probe, the operator is connected to the main controller, the wireless control module is connected to the operator, and the plate heat exchanger is connected to the bathroom circulation water circuit; in the bathroom circulation water circuit, the bathroom DC water pump and the bathroom inlet water temperature probe are set in the plate type The water inlet end of the heat exchanger and the bathroom outlet water temperature probe are arranged at the water outlet end of the plate heat exchanger. The invention has simple structure and convenient operation.
Description
Technical Field
The invention relates to the technical field of gas appliances, in particular to a zero-cold-water wall-mounted furnace and a control method.
Background
Bathroom circulating water pumps of existing zero-cold-water wall-mounted boiler products are constant-speed water pumps, speed-adjustable direct-current water pumps are rarely used, the bathroom circulating water pumps are only used for adjusting circulating water flow to be larger than starting flow so as to maintain a heating state, and the advantages of the speed-adjustable direct-current water pumps in control are not fully utilized. Alternating-current water pumps applied to wall-mounted boiler products are generally constant-speed canned pumps, and the change of the whole system in the long-term use process cannot be judged by using feedback signals under the condition that the speed can not be controlled. The existing scheme of applying the speed-regulating direct-current water pump only ensures that the flow of preheated hot water meets the combustion requirement.
Disclosure of Invention
The invention aims to solve the defects of the prior art and provide the zero-cold-water wall-mounted boiler which can control the circulating water flow of the whole boiler in a flow section suitable for preheating, improve the adaptability of products to different circulating pipelines and quickly output constant and uniform hot water.
The invention also aims to provide a control method of the zero-cold-water wall-mounted boiler.
The invention adopts the following technical scheme to realize the purpose: a zero-cold-water wall-mounted furnace capable of improving pipeline adaptability is characterized by comprising a main controller, an operator, a wireless control module, a bathroom direct-current water pump, a water flow sensor, a bathroom water inlet temperature probe, a plate heat exchanger and a bathroom water outlet temperature probe, wherein the operator is connected with the main controller, the wireless control module is connected with the operator, and the plate heat exchanger is connected with a bathroom circulating water path;
in the bathroom circulating water path, a bathroom direct-current water pump and a bathroom water inlet temperature probe are arranged at the water inlet end of the plate heat exchanger, and a bathroom water outlet temperature probe is arranged at the water outlet end of the plate heat exchanger.
As a further explanation of the above scheme, the water flow sensor is arranged at the water inlet end of the plate heat exchanger and used for detecting a water flow signal and feeding the water flow signal back to the main controller to start combustion cycle heating.
Furthermore, the operator is connected with the mobile terminal bound by the user through the wireless control module, and the user is reminded to carry out simple troubleshooting operation or after-sale service maintenance.
A control method of a zero-cold-water wall-mounted boiler capable of improving pipeline adaptability is characterized in that a bathroom direct-current speed-regulating water pump is adopted, so that the flow of circulating preheating water is adjustable, meanwhile, the minimum load of bathroom combustion is reduced to be below 2kW through multi-segment combustion control, and the minimum temperature rise of hot water is greatly reduced.
Further, the specific control steps comprise:
a. the main controller monitors the temperatures of a bathroom water inlet temperature probe and a bathroom water outlet temperature probe which are respectively arranged at the water inlet end and the water outlet end of the plate heat exchanger in real time, and when the water temperature meets the requirement of starting cycle preheating, the voltage of a bathroom direct-current water pump is output;
b. starting the bathroom direct-current water pump to operate, detecting a water flow signal by a water flow sensor in the wall-mounted boiler and feeding the water flow signal back to a main controller, and starting combustion circulation heating;
c. after multiple times of circulating heating, constant-temperature hot water meeting the target temperature requirement of the bathroom water is obtained;
d. when the monitored water flow rate of the circulating preheating is lower than the minimum starting flow rate, the operator displays a maintenance prompt, and sends related information to the mobile terminal bound by the user through the wireless control module, so that the user is reminded to perform simple troubleshooting operation or after-sale service maintenance.
Further, the implementation steps include:
a. determining the model parameters of the bathroom direct-current water pump, and debugging and matching the preheating circulating water flow, the minimum temperature rise of the minimum combustion load, the rotating speed of the direct-current water pump and the noise of the whole machine in the running process of the whole machine;
b. judging the hot water preheating starting condition, and controlling the starting operation of the bathroom direct-current water pump;
c. detecting the frequency value of a water flow sensor and the rotating speed frequency feedback of the bathroom direct-current water pump;
d. based on the hot water demand temperature set by a user, according to the matching relation of water flow and minimum temperature rise, controlling the rotating speed of the direct-current water pump of the bathroom to ensure that the circulating water flow is not lower than X and the rotating speed m of the direct-current water pump is corresponding to ensure the constant temperature effect of circulating preheating, and simultaneously ensuring that the rotating speed of the direct-current water pump is not higher than n to control the maximum noise;
e. the water resistance of hot water circulation pipelines of different users is different, and if the conditions of the step e cannot be met through detection and judgment, the step f is carried out;
f. presetting a minimum circulating water flow value F which is larger than a starting flow K of wall-hanging furnace bathroom work; in the long-term use process, the water resistance of the system is gradually increased, in order to maintain the flow rate of circulating water not less than F, the rotating speed of the bathroom direct-current water pump 4 is controlled to be gradually increased, when the highest rotating speed n is reached, a maintenance prompt is displayed on the operator, and the maintenance prompt is transmitted to the mobile terminal bound by a user through the wireless control module;
g. when the flow of circulating water at the rotating speed n is less than K, the fact that the resistance of a pipeline system is too large and the risk of dry burning exists is proved, and a pipeline blockage fault code and a maintenance prompt are displayed on an operator and a mobile terminal of a user when a preheating function is started; the relationship between the rotating speed: m is less than n; the flow relation is as follows: k is more than F and less than X.
The invention adopts the technical proposal to achieve the following beneficial effects:
1. the invention judges the change of the resistance of the pipeline system by monitoring the circulating water flow signal, controls the rotating speed of the direct-current water pump, and outputs the circulating water flow matched with the resistance of the pipeline system and the combustion load, thereby outputting quick, constant and uniform hot water and reminding a user to maintain before the accumulation of the circulating pipeline is blocked.
2. The adaptability of the product to different circulating pipelines is improved, and meanwhile, overlarge running noise is avoided.
3. The direct current water pump speed governing matches flow and combustion characteristic, improves the hot water travelling comfort.
4. The production cost of the zero-cold water product is reduced.
Drawings
Fig. 1 is a schematic structural view of a zero-cold-water wall-mounted boiler according to the present invention;
FIG. 2 is a control logic diagram of the present invention.
Description of reference numerals: 1. the device comprises a main controller 2, an operator 3, a wireless control module 4, a bathroom direct current water pump 5, a water flow sensor 6, a bathroom water inlet temperature probe 7, a plate heat exchanger 8, a bathroom water outlet temperature probe 9, a heating water inlet pipe 10, a heating water outlet pipe 11 and a heating water pump.
Detailed Description
The technical solution is described in detail with reference to specific embodiments below.
As shown in fig. 1, the invention is a zero-cold-water wall-mounted boiler capable of improving pipeline adaptability, which comprises a main controller 1, an operator 2, a wireless control module 3, a bathroom direct-current water pump 4, a water flow sensor 5, a bathroom water inlet temperature probe 6, a plate heat exchanger 7 and a bathroom water outlet temperature probe 8, wherein the operator is connected with the main controller, the wireless control module is connected with the operator, and the plate heat exchanger is connected with a bathroom circulating water path; in the bathroom circulating water path, a bathroom direct-current water pump and a bathroom water inlet temperature probe are arranged at the water inlet end of the plate heat exchanger, and a bathroom water outlet temperature probe is arranged at the water outlet end of the plate heat exchanger. The operator is connected with the mobile terminal bound by the user through the wireless control module, and the user is reminded of carrying out simple troubleshooting operation or after-sale service maintenance. The water flow sensor is arranged at the water inlet end of the plate heat exchanger and used for detecting a water flow signal and feeding the water flow signal back to the main controller to start combustion circulation heating. Be provided with combustor heat transfer device in the hanging stove, combustor heat transfer device includes combustor, heat exchanger, the heating inlet tube 9 and the heating outlet pipe 10 of being connected with heat exchanger, and the heating inlet tube is provided with heating water pump 11, and the heating water pump is connected with main control unit. A first connecting pipeline is connected between the heating water outlet pipe and the plate heat exchanger, and a second connecting pipeline is connected between the heating water inlet pipe and the plate heat exchanger.
The control steps are as follows:
1. the main controller 1 monitors the temperatures of the bathroom water inlet temperature probe 6 and the bathroom water outlet temperature probe 8 in real time, and outputs the voltage of the bathroom direct-current water pump 4 when the water temperature meets the requirement of starting circulation preheating;
2. starting the bathroom direct-current water pump 4 to operate, detecting a water flow signal by a water flow sensor 5 in the wall-mounted boiler and feeding the water flow signal back to the main controller 1, and starting combustion circulation heating;
3. after multiple times of circulating heating, constant-temperature hot water meeting the target temperature requirement of the bathroom water is obtained;
4. when the monitored flow rate of the circularly preheated water is lower than the minimum starting flow rate, the operator 2 displays maintenance reminding, and sends related information to the mobile terminal bound by the user through the wireless control module 3 to remind the user to carry out simple troubleshooting operation or after-sale service maintenance.
As shown in fig. 2, in this embodiment, the operating speed of the direct-flow water pump 4 in the bathroom is controlled under various working conditions, and the flow characteristic, the combustion characteristic and the noise characteristic under the product platform are matched, so that the product can meet the standard requirements, and simultaneously, the preheating effect is quickly achieved, comfortable hot water is obtained, and the adaptability of the product to the pipeline resistances of different systems is improved by controlling the circulating flow.
The implementation steps are as follows:
i, determining model parameters of a bathroom direct-current water pump 4, and debugging and matching preheating circulating water flow, minimum temperature rise of minimum combustion load, direct-current water pump rotating speed and whole machine noise in the whole machine operation process;
II, judging hot water preheating starting conditions, and controlling the starting operation of the bathroom direct-current water pump 4;
III, detecting the frequency value of the water flow sensor 5 and the rotating speed frequency feedback of the bathroom direct-current water pump 4;
IV, based on the hot water demand temperature set by a user, controlling the rotating speed of the bathroom direct-current water pump 4 according to the matching relation of water flow and minimum temperature rise, so that the circulating water flow is not lower than X (corresponding to the rotating speed m of the direct-current water pump), the constant temperature effect of circulating preheating is ensured, and meanwhile, the rotating speed of the direct-current water pump is not higher than n so as to control the maximum noise;
v, different water resistances of hot water circulation pipelines of different users are different, and if the conditions of the step IV cannot be met through detection and judgment, the step VI is carried out;
VI, presetting a minimum circulating water flow value F which is larger than the starting flow K of the wall-hanging furnace for bathroom work. In the long-term use process, the system water resistance can grow gradually, in order to maintain the circulating water flow not less than F, the rotating speed of the bathroom direct current water pump 4 is controlled to rise gradually, when the highest rotating speed n is reached, the maintenance reminding is displayed on the operator 2, and the maintenance reminding is transmitted to the mobile terminal bound by the user through the wireless control module 3.
VII, when the flow rate of the circulating water at the rotating speed n is less than K, the fact that the resistance of the pipeline system is too large and the risk of dry burning exists is proved, and when the preheating function is started, a pipeline blockage fault code and a maintenance prompt are displayed on the operator 2 and a mobile terminal of a user; the relationship between the rotating speed: m is less than n; the flow relation is as follows: k is more than F and less than X.
Compared with the prior art, the invention controls the rotating speed of the direct-current water pump to control the circulating water flow of the whole machine to be in a flow section suitable for preheating, improves the adaptability of the product to different circulating pipelines, and quickly outputs constant and uniform hot water.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the inventive concept of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A zero-cold-water wall-mounted furnace capable of improving pipeline adaptability is characterized by comprising a main controller, an operator, a wireless control module, a bathroom direct-current water pump, a water flow sensor, a bathroom water inlet temperature probe, a plate heat exchanger and a bathroom water outlet temperature probe, wherein the operator is connected with the main controller, the wireless control module is connected with the operator, and the plate heat exchanger is connected with a bathroom circulating water path;
in the bathroom circulating water path, a bathroom direct-current water pump and a bathroom water inlet temperature probe are arranged at the water inlet end of the plate heat exchanger, and a bathroom water outlet temperature probe is arranged at the water outlet end of the plate heat exchanger.
2. The zero-cold-water wall-mounted boiler capable of improving the pipeline adaptability according to claim 1, wherein the water flow sensor is arranged at the water inlet end of the plate heat exchanger and used for detecting a water flow signal and feeding the water flow signal back to a main controller to start combustion cycle heating.
3. The zero-cold-water wall-mounted boiler capable of improving pipeline adaptability according to claim 1, wherein the operator is connected with a mobile terminal bound by a user through the wireless control module to remind the user of troubleshooting operation or after-sale service maintenance.
4. A control method corresponding to the zero-cold-water wall-mounted boiler capable of improving the pipeline adaptability of any one of claims 1-3 is characterized in that a bathroom direct-current speed-regulating water pump is adopted, the flow of circulating preheated water is adjustable, and the minimum load of bathroom combustion is reduced through multi-segment combustion control.
5. The method for controlling a zero-cold-water wall-hanging stove capable of improving pipeline adaptability according to claim 1, comprising the following specific steps:
a. the main controller monitors the temperatures of a bathroom water inlet temperature probe and a bathroom water outlet temperature probe which are respectively arranged at the water inlet end and the water outlet end of the plate heat exchanger in real time, and when the water temperature meets the requirement of starting cycle preheating, the voltage of a bathroom direct-current water pump is output;
b. starting the bathroom direct-current water pump to operate, detecting a water flow signal by a water flow sensor in the wall-mounted boiler and feeding the water flow signal back to a main controller, and starting combustion circulation heating;
c. after multiple times of circulating heating, constant-temperature hot water meeting the target temperature requirement of the bathroom water is obtained;
d. when the monitored water flow rate of the circulating preheating is lower than the minimum starting flow rate, the operator displays a maintenance prompt, and sends related information to the mobile terminal bound by the user through the wireless control module, so that the user is reminded to perform simple troubleshooting operation or after-sale service maintenance.
6. The method for controlling a zero-cold-water wall-hanging stove capable of improving adaptability of pipelines according to claim 5, wherein the implementation steps comprise:
a. determining the model parameters of the bathroom direct-current water pump, and debugging and matching the preheating circulating water flow, the minimum temperature rise of the minimum combustion load, the rotating speed of the direct-current water pump and the noise of the whole machine in the running process of the whole machine;
b. judging the hot water preheating starting condition, and controlling the starting operation of the bathroom direct-current water pump;
c. detecting the frequency value of a water flow sensor and the rotating speed frequency feedback of the bathroom direct-current water pump;
d. based on the hot water demand temperature set by a user, controlling the rotating speed of the direct-current water pump of the bathroom according to the matching relation of water flow and minimum temperature rise, so that the circulating water flow is not lower than X and corresponds to the rotating speed m of the direct-current water pump, and meanwhile, the rotating speed of the direct-current water pump is not higher than n so as to control the maximum noise;
e. the water resistance of hot water circulation pipelines of different users is different, and if the conditions of the step e cannot be met through detection and judgment, the step f is carried out;
f. presetting a minimum circulating water flow value F which is larger than a starting flow K of wall-hanging furnace bathroom work; in the long-term use process, the water resistance of the system is gradually increased, in order to maintain the flow rate of circulating water not less than F, the rotating speed of the bathroom direct-current water pump 4 is controlled to be gradually increased, when the highest rotating speed n is reached, a maintenance prompt is displayed on the operator, and the maintenance prompt is transmitted to the mobile terminal bound by a user through the wireless control module;
g. when the flow of circulating water at the rotating speed n is less than K, the fact that the resistance of a pipeline system is too large and the risk of dry burning exists is proved, and a pipeline blockage fault code and a maintenance prompt are displayed on an operator and a mobile terminal of a user when a preheating function is started; the relationship between the rotating speed: m is less than n; the flow relation is as follows: k is more than F and less than X.
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| CN202011486571.2A CN112503779B (en) | 2020-12-16 | 2020-12-16 | Zero-cold-water wall-mounted boiler capable of improving pipeline adaptability and control method |
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| CN112503779B CN112503779B (en) | 2024-11-05 |
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| CN2658641Y (en) * | 2003-10-15 | 2004-11-24 | 中山华帝燃具股份有限公司 | Gas water heater capable of sectional burning |
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| CN111322763A (en) * | 2020-02-11 | 2020-06-23 | 华帝股份有限公司 | Double-line zero-cold-water temperature control method and wall-mounted furnace |
| CN111351119A (en) * | 2020-03-02 | 2020-06-30 | 中山市力科电器有限公司 | Intelligent zero-cold-water wall-mounted boiler and intelligent control method |
| CN214469381U (en) * | 2020-12-16 | 2021-10-22 | 万家乐热能科技有限公司 | Zero-cold-water wall-mounted furnace capable of improving pipeline adaptability |
-
2020
- 2020-12-16 CN CN202011486571.2A patent/CN112503779B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2658641Y (en) * | 2003-10-15 | 2004-11-24 | 中山华帝燃具股份有限公司 | Gas water heater capable of sectional burning |
| CN206300351U (en) * | 2016-12-26 | 2017-07-04 | 广东万家乐燃气具有限公司 | A kind of hot water circulating device with straightway pump |
| CN110207248A (en) * | 2018-10-25 | 2019-09-06 | 华帝股份有限公司 | Water path system of wall-mounted boiler capable of preheating domestic water, wall-mounted boiler and control method of wall-mounted boiler |
| CN111322763A (en) * | 2020-02-11 | 2020-06-23 | 华帝股份有限公司 | Double-line zero-cold-water temperature control method and wall-mounted furnace |
| CN111351119A (en) * | 2020-03-02 | 2020-06-30 | 中山市力科电器有限公司 | Intelligent zero-cold-water wall-mounted boiler and intelligent control method |
| CN214469381U (en) * | 2020-12-16 | 2021-10-22 | 万家乐热能科技有限公司 | Zero-cold-water wall-mounted furnace capable of improving pipeline adaptability |
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