CN214469378U - Zero-cold-water wall-mounted furnace with hot water pressurization function - Google Patents
Zero-cold-water wall-mounted furnace with hot water pressurization function Download PDFInfo
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- CN214469378U CN214469378U CN202022950730.1U CN202022950730U CN214469378U CN 214469378 U CN214469378 U CN 214469378U CN 202022950730 U CN202022950730 U CN 202022950730U CN 214469378 U CN214469378 U CN 214469378U
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Abstract
The utility model discloses a zero-cold water wall-mounted furnace with hot water pressurization function, which is characterized by comprising a main controller, an operator, a bathroom direct-current speed-regulating water pump, a water flow sensor, a bathroom water inlet temperature probe, a plate heat exchanger, a bathroom water outlet temperature probe and a burner heat exchange device, wherein the burner heat exchange device comprises a burner, a heat exchanger, a heating water inlet pipe and a heating water outlet pipe which are connected with the heat exchanger, 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 plate heat exchanger is provided with a bathroom water inlet pipeline and a bathroom water outlet pipeline, and the bathroom water inlet temperature probe, the water flow sensor and the bathroom direct-current water pump are arranged on the bathroom water inlet pipeline; the bathroom outlet water temperature probe is arranged on a bathroom outlet water pipeline. The utility model discloses simple structure improves the product and to the adaptability of different circulating line, avoids producing too big running noise simultaneously, reduces the manufacturing cost of zero cold water product.
Description
Technical Field
The utility model relates to a hanging stove technical field.
Background
The bathroom circulating water pump of the existing zero-cold-water wall-mounted boiler product generally uses a constant-speed water pump, rarely uses a direct-current water pump with adjustable speed, only uses the direct-current water pump as power for hot water circulation preheating, and does not fully exert the speed-adjusting advantage of the bathroom direct-current water pump.
Disclosure of Invention
The utility model aims at solving the defects of the prior art and providing a zero-cold water wall-mounted boiler with hot water pressurization function, which can optimize the hot water constant temperature performance, save the material cost and reduce the assembly difficulty.
Another object of the present invention is to provide a method for controlling a zero-cooling water wall-hanging stove with hot water pressurization function.
The utility model discloses an adopt following technical solution to realize above-mentioned purpose: a zero-cold-water wall-mounted furnace with a hot water pressurization function is characterized by comprising a main controller, an operator connected with the main controller, a bathroom direct-current speed-regulating water pump, a water flow sensor, a bathroom water inlet temperature probe, a plate heat exchanger, a bathroom water outlet temperature probe and a combustor heat exchange device, wherein the combustor heat exchange device comprises a combustor, a heat exchanger, a heating water inlet pipe and a heating water outlet pipe connected with the heat exchanger, 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 plate heat exchanger is provided with a bathroom water inlet pipeline and a bathroom water outlet pipeline, and the bathroom water inlet temperature probe, the water flow sensor and the bathroom direct-current water pump are arranged on the bathroom water inlet pipeline;
the bathroom outlet water temperature probe is arranged on a bathroom outlet water pipeline.
As a further explanation of the above scheme, a pressure detection device is arranged on the heating water outlet pipe, and the pressure detection device is connected with the main controller.
Furthermore, the heating water inlet pipe is provided with a heating water pump, and the heating water pump is connected with the main controller.
The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:
the utility model discloses a to the alignment water pump rotational speed and to the control of complete machine output hot water flow, accurate matching discharge and burning load, guarantee circulation preheat and the user opens the temperature travelling comfort of valve water, improve the product and to different circulation pipeline and user's water inflow hydraulic pressure's adaptability, export quick, invariable, even hot water, promote user experience, reduce the manufacturing cost of zero cold water product simultaneously.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a control flow chart of the present invention.
Description of reference numerals: 1. the water heater comprises a main controller 2, an operator 3, a bathroom direct-current speed-regulating water pump 4, a water flow sensor 5, a bathroom water inlet temperature probe 6, a plate heat exchanger 7, a bathroom water outlet temperature probe 8, a burner heat exchange device 9, a first connecting pipeline 10, a second connecting pipeline 11, a bathroom water inlet pipeline 12, a bathroom water outlet pipeline 13, a pressure detection device 14 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 utility model relates to a zero cold water hanging stove with hot water supercharging function, it includes main control unit 1, the operator 2 that is connected with main control unit, bathroom direct current speed governing water pump 3, rivers sensor 4, bathroom inlet water temperature probe 5, plate heat exchanger 6, bathroom outlet water temperature probe 7, combustor heat transfer device 8, combustor heat transfer device includes combustor, heat exchanger, the heating inlet tube and the heating outlet pipe that are connected with heat exchanger, be connected with connecting line one 9 between heating outlet pipe and the plate heat exchanger, be connected with connecting line two 10 between heating inlet tube and the plate heat exchanger; the plate heat exchanger is provided with a bathroom water inlet pipeline 11 and a bathroom water outlet pipeline 12, and the bathroom water inlet temperature probe, the water flow sensor and the bathroom direct-current water pump are arranged on the bathroom water inlet pipeline; the bathroom outlet water temperature probe is arranged on a bathroom outlet water pipeline. And a pressure detection device 13 is arranged on the heating water outlet pipe and is connected with the main controller. An exhaust device is arranged above the burner and comprises an exhaust fan and an exhaust pipe. The heating inlet tube is provided with heating water pump 14, and the heating water pump is connected with main control unit. Through adopting bathroom direct current speed governing water pump, make circulation preheating water flow adjustable, saved the water storage tank in the general scheme, reduce the minimum load of bathroom burning below 2kW simultaneously, reduced minimum temperature rise, further optimized hot water constant temperature performance, and save material cost again, reduce the assembly degree of difficulty, kill many birds with one stone.
Further, the utility model discloses a control bathroom direct current speed governing water pump opens and stops and the running speed thereof, obtains comfortable hot water fast, and the control step is as follows:
1. the main controller 1 monitors the temperatures of the bathroom water inlet temperature probe 5 and the bathroom water outlet temperature probe 7 in real time, and outputs the voltage of the bathroom direct-current water pump 3 when the water temperature meets the requirement of starting circulation preheating;
2. the bathroom direct-current water pump 3 is started to operate, the water flow sensor 4 in the wall-mounted boiler detects a water flow signal and feeds the water flow signal back to the main controller 1, and combustion cyclic heating is started;
3. after multiple times of circulating heating, constant-temperature hot water meeting the target temperature requirement of the bathroom water is obtained.
As shown in fig. 2, specifically, the implementation steps are as follows:
1. the operator 2 is provided with a pressure increasing function key, and a user can select whether to start or not according to the water pressure condition of the user.
2. According to the requirement of GB 25034, when the hot water production rate of the appliance at the temperature rise of 30K is a, the water flow rate b of the temperature rise of 40K is 3 a/4; in order to ensure that the output hot water after pressurization can meet the constant temperature requirement of a user, the upper limit value of the hot water flow of the temperature rise 40K is set to be b (rounded) on the operator 1. Most users require the temperature of the bathroom water to be 40-45 ℃, and the water inlet temperature of different bathrooms directly influences the flow of the outputted constant-temperature hot water under the same temperature rise requirement. Therefore, the upper flow limit b is only effective in the winter mode with low bathroom inlet water temperature. Starting a pressurization function in a summer mode, starting the bathroom direct-current water pump 3 after a user opens a valve to use water, adjusting a PWM value to increase the rotating speed of the water pump, and when the PWM value is detected to be continuously increased (or decreased) by P% (P is more than or equal to 10 and less than or equal to 30 for the direct-current water pump with the PWM value in positive correlation with the rotating speed), proving that the physical flow limiting value of the boiler is reached and keeping the current rotating speed unchanged, wherein the change value of the water flow is less than k (k is more than or equal to 0.5 and less than or equal to 1.5). And after the user finishes using water, closing the bathroom direct-current water pump 3.
3. The main controller 1 judges the property of the current water flow signal to belong to water consumption of a user or circular preheating according to the time point of the water flow signal and the water flow.
3.1, when not satisfying preheating the start condition, the rivers signal that detects judges that present is user's water, if "pressure boost" function is opened, then judges the relation of present discharge f and b: in order to widen the water flow range of the pressurization function, introducing a circulating flow value (rounded) when the PWM duty ratio of the bathroom direct-current water pump is P% under the environment that c is 50-80 m of a household circulating preheating pipeline; if f is less than or equal to b-c, controlling the PWM duty ratio of the bathroom direct-current water pump 3 to be P%, detecting the current water flow to be f1, if f1 is less than b, adjusting the water pump rotating speed to enable f1 to be b, if b-c is less than f1 and less than or equal to b +1, keeping the starting rotating speed, and if f1 is more than b +1, closing the bathroom direct-current water pump 3; if the 'supercharging' function is closed, the bathroom direct current water pump 3 is not started under the condition that the user uses water.
3.2, judging that the water flow signal detected after the preheating starting condition is met and the bathroom direct-current water pump is started is circulating preheating; when the water flow is detected to be suddenly changed and is larger than the upper limit value b during circulating preheating, the water consumption of a user is judged, if the current 'pressurization' function is started, the bathroom direct-current water pump 3 is controlled to be adjusted according to the step 3.1, the effluent is controlled to be constant in temperature, if the current 'pressurization' function is closed, the bathroom direct-current water pump 3 is controlled to stop running, and after the water of the user is used, the preheating starting condition is judged.
4. The preheating starting conditions are as follows: and in the appointed time period, when the current temperature Tin of the bathroom inlet water temperature probe is less than or equal to the target temperature TS-starting temperature difference T0-2 ℃ or the current temperature Tout of the bathroom outlet water temperature probe is less than or equal to the target temperature TS-starting temperature difference T0 (the target temperature TS and the starting temperature difference T0 can be set by a user), controlling to start hot water preheating.
5. The preheating flame-out conditions are as follows: and continuously detecting that the bath water inlet temperature is more than or equal to the bath water outlet target temperature or the bath water outlet temperature is more than or equal to the bath water outlet target temperature plus 10 ℃ within 10 s. Under the normal preheating condition, the bathroom water in the hot water pipeline is heated to meet the flameout condition, and the burning time does not exceed 30 min. Therefore, when the preheating flameout condition is not met even when the circulating preheating exceeds 30min, the bathroom circulating water pump 3 is immediately stopped when the water is opened by the user.
Compared with the prior art, the utility model, through alignment flow water pump rotational speed and to the control of complete machine output hot water flow, accurate matching discharge and burning load, the guarantee circulation preheats and the user opens the temperature travelling comfort of valve water, improves the product and to different circulation pipeline and user's water intake hydraulic adaptability, exports quick, invariable, even hot water, promotes user experience, reduces the manufacturing cost of zero cold water product simultaneously.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.
Claims (4)
1. A zero-cold-water wall-mounted furnace with a hot water pressurization function is characterized by comprising a main controller, an operator connected with the main controller, a bathroom direct-current speed-regulating water pump, a water flow sensor, a bathroom water inlet temperature probe, a plate heat exchanger, a bathroom water outlet temperature probe and a combustor heat exchange device, wherein the combustor heat exchange device comprises a combustor, a heat exchanger, a heating water inlet pipe and a heating water outlet pipe connected with the heat exchanger, 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 plate heat exchanger is provided with a bathroom water inlet pipeline and a bathroom water outlet pipeline, and the bathroom water inlet temperature probe, the water flow sensor and the bathroom direct-current water pump are arranged on the bathroom water inlet pipeline;
the bathroom outlet water temperature probe is arranged on a bathroom outlet water pipeline.
2. The zero-cold-water wall-mounted boiler with the hot water pressurization function according to claim 1, wherein a pressure detection device is arranged on the heating water outlet pipe, and the pressure detection device is connected with a main controller.
3. The zero-cold-water wall-mounted boiler with the hot water pressurization function according to claim 1, wherein a heating water pump is arranged on the heating water inlet pipe, and the heating water pump is connected with a main controller.
4. The zero-cold-water wall-mounted boiler with the hot water pressurization function according to claim 1, wherein an exhaust device is arranged above the burner, and the exhaust device comprises an exhaust fan and an exhaust pipe.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022950730.1U CN214469378U (en) | 2020-12-11 | 2020-12-11 | Zero-cold-water wall-mounted furnace with hot water pressurization function |
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| CN202022950730.1U CN214469378U (en) | 2020-12-11 | 2020-12-11 | Zero-cold-water wall-mounted furnace with hot water pressurization function |
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| CN214469378U true CN214469378U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484316A (en) * | 2020-12-11 | 2021-03-12 | 万家乐热能科技有限公司 | Zero-cold-water wall-mounted boiler with hot water pressurization function and control method |
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2020
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112484316A (en) * | 2020-12-11 | 2021-03-12 | 万家乐热能科技有限公司 | Zero-cold-water wall-mounted boiler with hot water pressurization function and control method |
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