CN111520918A - Zero-cold-water control method for wall-mounted boiler - Google Patents
Zero-cold-water control method for wall-mounted boiler Download PDFInfo
- Publication number
- CN111520918A CN111520918A CN202010376347.1A CN202010376347A CN111520918A CN 111520918 A CN111520918 A CN 111520918A CN 202010376347 A CN202010376347 A CN 202010376347A CN 111520918 A CN111520918 A CN 111520918A
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- Prior art keywords
- heat exchange
- wall
- temperature value
- loop
- bathroom
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Classifications
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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
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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
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
Abstract
The invention relates to the technical field of heating equipment, and discloses a zero cold water control method of a wall-mounted furnace, which comprises the following steps of obtaining a standby signal, and switching an internal loop of the wall-mounted furnace into a heat exchange loop in a bathroom mode; executing a heat preservation mode; acquiring a first temperature value of a heat exchange loop, judging whether the first temperature value is smaller than a first preset value, if not, keeping a heat preservation mode, and executing a heating mode; and acquiring the first temperature value of the heat exchange loop, judging whether the first temperature value is greater than or equal to a second preset value, if not, keeping a heating mode, and if so, returning to a heat preservation mode. When the bathroom water heater is in a standby state, system water of the heat exchange loop always keeps a certain temperature to exchange heat with tap water of the bathroom loop, and other hardware equipment does not need to be added. When the hanging stove starts to get into the running state, the running water that just releases is through the heat transfer, possesses zero cold water performance when the hanging stove starts the output, improves user's experience and feels.
Description
Technical Field
The invention relates to the technical field of heating equipment, in particular to a zero-cold-water control method of a wall-mounted furnace.
Background
The gas wall-mounted boiler is also called a gas heating and water heating dual-purpose boiler, namely, the gas wall-mounted boiler has a bathroom function similar to a gas water heater besides a heating function. Circulating water in the heating system is heated in a reciprocating manner in the circulating process, so that heat is continuously output to the building, and a heating heat source is provided for the building. In a bathroom system, tap water is subjected to heat exchange with system circulating water to provide hot water.
But the bathroom of hanging stove is arrived to the bathroom apart from longer, and the user is when needing hot water, because the water heater ignition start can need a process, so cold water that has in the pipeline must be put out earlier and just can have the hot water to flow out, will last a period of time in addition and just can come out hot water, need wait for the long time, has wasted a lot of running water moreover, reduces user's experience and feels.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: how to realize that the wall-mounted boiler has zero cold water performance when starting output.
In order to solve the technical problem, the invention provides a wall-mounted boiler zero-cold-water control method, which comprises the following steps of:
s1, acquiring a standby signal, and switching an internal loop of the wall-hanging furnace into a heat exchange loop in a bathroom mode;
s2, executing a heat preservation mode, wherein the heat preservation mode is to stop supplying heat to the heat exchange loop and close a circulating pump of the heat exchange loop;
s3, acquiring a first temperature value of the heat exchange loop, judging whether the first temperature value is smaller than a first preset value, if not, returning to the step S2, and if so, executing the step S4;
s4, executing a heating mode, wherein the heating mode is to heat the heat exchange loop and start the circulating pump;
s5, acquiring the first temperature value of the heat exchange loop, judging whether the first temperature value is larger than or equal to a second preset value, if not, returning to the step S4, if so, stopping executing the heating mode, and returning to the step S2.
Preferably, in step S1, the method specifically includes:
and acquiring a standby signal, judging whether the wall-mounted furnace is in a bathroom mode, if so, keeping a heat exchange loop of the bathroom mode, and if not, switching a three-way valve to the heat exchange loop of the bathroom mode.
Preferably, in the step S3 and the step S5, the step of obtaining the first temperature value of the heat exchange loop specifically includes:
and acquiring a first temperature value of the water inlet end position of the heat exchanger of the heat exchange loop.
Preferably, in step S4, the method specifically includes:
and acquiring a first temperature value of the heat exchange loop and a second temperature value of the bathroom loop, judging whether the first temperature value is smaller than a first preset value and whether the second temperature value is smaller than a third preset value, if not, returning to the step S2, and if so, executing the step S4.
Preferably, in the step S4, the step of obtaining the second temperature value of the bathroom loop specifically includes:
and acquiring a second temperature value of a bathroom water outlet end position of the bathroom loop.
Preferably, the first preset value is 40 ℃, and the second preset value is 50 ℃.
Preferably, the third preset value is 34 ℃.
Preferably, between the step S2 and the step S3, the following steps are further included;
w1, judging whether an operation signal is acquired, if so, executing a step W2, and if not, executing a step S3;
w2: the run state is executed.
Preferably, between the step S4 and the step S5, the following steps are further included;
w3, judging whether an operation signal is acquired, if so, executing a step W4, and if not, executing a step S5;
w4: the run state is executed.
Compared with the prior art, the zero-cold-water control method of the wall-mounted boiler has the beneficial effects that:
when the wall-mounted furnace in the invention obtains a standby signal and enters a standby state, an internal loop of the wall-mounted furnace is switched to a heat exchange loop in a bathroom mode, a first temperature value of the heat exchange loop is subjected to circulating detection, when the first temperature value is lower than a first preset value, the heating mode is started, system water in the heat exchange loop starts to be heated circularly, when the first temperature value reaches or is higher than a second preset value, heat supply to the heat exchange loop is stopped, a circulating pump is closed, and the first temperature value of the heat exchange loop is subjected to circulating detection again. When the bathroom water heater is in a standby state, system water of the heat exchange loop always keeps a certain temperature to exchange heat with tap water of the bathroom loop, and in the process, the system water is directly controlled by the existing configurations of a temperature sensor, a circulating pump and the like of the heat exchange loop without adding other hardware equipment. When the hanging stove starts to get into running state, the running water that just releases is through the heat transfer, possesses zero cold water performance when hanging stove starts the output, has reached fine quick play hot water effect, improves user's experience and feels.
Drawings
Fig. 1 is a main flowchart of a wall-hanging stove zero-cold-water control method according to a preferred embodiment of the present invention.
Fig. 2 is a block diagram of the overall flow of the method for controlling zero-cooling water in a wall-hanging stove according to the preferred embodiment of the present invention.
Fig. 3 is a schematic view of a heating mode structure to which a zero-cold-water control method of a wall-hanging stove according to a preferred embodiment of the present invention is applied.
Fig. 4 is a schematic view of a bathroom mode structure to which a zero-cooling water control method of a wall-hanging stove according to a preferred embodiment of the present invention is applied.
In the figure: 1. a heat exchange loop; 2. a circulation pump; 3. a three-way valve; 4. a heat exchanger; 5. a heating loop; 6. a sanitary loop; 7. a first temperature sensor; 8. a second temperature sensor.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the terms "connected," "fixed," and the like are used in a broad sense, and for example, the terms "connected," "connected," and "fixed" may be fixed, detachable, or integrated; the connection can be mechanical connection or welding connection; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 to 2, a preferred embodiment of the present invention provides a zero-cold-water control method for a wall-hanging stove, including the following steps:
s1, acquiring a standby signal, and switching an internal loop of the wall-hanging stove into a heat exchange loop 1 in a bathroom mode; s2, executing a heat preservation mode, wherein the heat preservation mode is to stop supplying heat to the heat exchange loop 1 and close a circulating pump 2 of the heat exchange loop 1; s3, acquiring a first temperature value of the heat exchange loop 1, judging whether the first temperature value is smaller than a first preset value, if not, returning to the step S2, and if so, executing the step S4; s4, executing a heating mode, wherein the heating mode is to heat the heat exchange loop 1 and start the circulating pump 2; s5, acquiring the first temperature value of the heat exchange loop 1, judging whether the first temperature value is larger than or equal to a second preset value, if not, returning to the step S4, if so, stopping executing the heating mode, and returning to the step S2.
According to the zero-cold-water control method of the wall-mounted furnace based on the technical characteristics, when the wall-mounted furnace obtains a standby signal and enters a standby state, an internal loop of the wall-mounted furnace is switched to the heat exchange loop 1 in a bathroom mode, the first temperature value of the heat exchange loop 1 is subjected to circulating detection, when the first temperature value is lower than a first preset value, the heating mode is started, circulating heating of system water in the heat exchange loop 1 is started, when the first temperature value reaches or is higher than a second preset value, heat supply to the heat exchange loop 1 is stopped, the circulating pump 2 is closed, and circulating detection is performed on the first temperature value of the heat exchange loop 1 again. When the bathroom water heater is in a standby state, system water of the heat exchange loop 1 always keeps a certain temperature to exchange heat with tap water of the bathroom loop 6, and in the process, the system water is directly controlled by the existing configurations of the temperature sensor, the circulating pump 2 and the like of the heat exchange loop 1 without adding other hardware equipment. When the hanging stove starts to get into running state, the running water that just releases is through the heat transfer, possesses zero cold water performance when hanging stove starts the output, has reached fine quick play hot water effect, improves user's experience and feels.
Wherein, when hanging stove starts to get into the running state, possess heating mode and bathroom mode: (1) a heating mode: referring to fig. 3, the three-way valve 3 in the wall-mounted boiler is switched to a heating loop 5, system water enters from a position D, is conveyed to a combustion chamber by the circulating pump 2 for heating, and finally flows out from a position a; (2) a bathroom mode: referring to fig. 4, the three-way valve 3 of the wall-hanging stove is switched to the heat exchange loop 1 (some pipelines are overlapped with the heating loop 5), so that the system water enters the heat exchanger 4 and then returns to the circulating pump 2, the system water is applied to the circulating loop, meanwhile, the tap water in the bathroom loop 6 enters the heat exchanger 4 from the position C, exchanges heat with the system water in the heat exchanger 4, and finally flows out from the position B, and the heating of the bathroom water is realized. The heating effect of the combustion chamber can be adjusted by detecting the temperature of the system water by the first temperature sensor 7 of the heat exchange loop 1 in the wall-hanging furnace and detecting the temperature of the tap water by the second temperature sensor 8 of the bathroom loop 6. Namely, the control method directly utilizes the hardware configurations of the three-way valve 3, the circulating pump 2, the first temperature sensor 7, the second temperature sensor 8 and the like on the wall-mounted boiler to realize the zero-cold-water performance of the wall-mounted boiler without adding any hardware.
In this embodiment, as shown in fig. 2, in step S1, specifically, the following steps are performed: and acquiring a standby signal, judging whether the wall-mounted furnace is in a bathroom mode, if so, keeping the heat exchange loop 1 in the bathroom mode, and if not, switching the three-way valve 3 to the heat exchange loop 1 in the bathroom mode. After the wall-mounted furnace is operated, whether the wall-mounted furnace is in the bathroom mode or not is judged before the operation is finished, whether the three-way valve 3 is switched or not is determined, the service life of the three-way valve 3 is prolonged, and it is guaranteed that an internal loop of the wall-mounted furnace can be in the heat exchange loop 1 in the bathroom mode when the wall-mounted furnace is in the standby state.
In this embodiment, in the step S3 and the step S5, the step of obtaining the first temperature value of the heat exchange loop 1 specifically includes: and acquiring a first temperature value of the water inlet end position of the heat exchanger 4 of the heat exchange loop 1. And the position of the water inlet end of the heat exchanger 4 of the heat exchange loop 1 is obtained through the first temperature sensor 7, and the first temperature value of the system water entering the heat exchanger 4 of the heat exchange loop 1 is determined, so that the validity of temperature detection is ensured.
In this embodiment, in the step S4, specifically, the following steps are performed: acquiring a first temperature value of the heat exchange loop 1 and a second temperature value of the bathroom loop 6, determining whether the first temperature value is smaller than a first preset value and whether the second temperature value is smaller than a third preset value, if not, returning to the step S2, and if so, executing the step S4. By combining the detection of the temperature of the bathroom loop 6, the temperature detection results of the heat exchange loop 1 and the bathroom loop 6 are integrated to determine whether to execute the heating mode, so that the problems that the heat exchange loop 1 and the bathroom loop 6 have large temperature difference due to factors such as environment and the like and excessive fuel gas energy is consumed are avoided.
Further, in the step S4, the step of obtaining the second temperature value of the sanitary loop 6 specifically includes: and acquiring a second temperature value of the position of the bathroom water outlet end of the bathroom loop 6. The second temperature value of the tap water at the water outlet end of the bathroom is obtained through the second temperature sensor 8, and when the bathroom is operated in a bathroom mode, the tap water at the water outlet end of the bathroom is discharged at first, so that the tap water at the water outlet end of the bathroom is kept within a proper temperature range, and the experience of a user is further improved.
In this embodiment, according to actual tests, the first preset value is 40 ℃, the second preset value is 50 ℃, and the third preset value is 34 ℃, so that these values are set to have better effects, and maintained within a reasonable temperature range, while ensuring reasonable thermal efficiency. It can be understood that the first preset value, the second preset value, and the third preset value can also be set to other values, and corresponding functional effects can also be achieved, and are not described herein again.
In the present embodiment, as shown in fig. 2, between step S2 and step S3, the following steps are further included; w1, judging whether an operation signal is acquired, if so, executing a step W2, and if not, executing a step S3; w2: the run state is executed. In the process that the wall-mounted furnace executes the heat preservation mode, if an operation signal is received, the wall-mounted furnace directly enters the operation state with normal requirements, and the control method is guaranteed not to influence the normal operation requirements of the wall-mounted furnace.
In the present embodiment, between step S4 and step S5, the following steps are further included; w3, judging whether an operation signal is acquired, if so, executing a step W4, and if not, executing a step S5; w4: the run state is executed. In the process that the wall-mounted furnace executes the heating mode, if an operation signal is received, the wall-mounted furnace directly enters the operation state with normal requirements, and the control method is guaranteed not to influence the normal operation requirements of the wall-mounted furnace. The operation state comprises a heating mode and a bathroom mode.
To sum up, the embodiment of the invention provides a zero-cold-water control method for a wall-mounted boiler, which has the following advantages: (1) the control method directly utilizes the structural configuration of the normal running state of the wall-mounted boiler to realize zero cold water performance, does not need to increase any hardware cost, does not need to change the integral structure of the existing wall-mounted boiler, and has strong applicability; (2) when the wall-mounted boiler operates in a bathroom mode, hot water can be discharged immediately without a cold water transition stage; (3) the heating mode only heats the heat exchange loop 1 in the wall-mounted boiler, the heating range is small, the fuel gas energy consumption is reasonable, and meanwhile, the heating mode has obvious quick hot water outlet performance.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (9)
1. A zero-cold-water control method of a wall-mounted boiler is characterized by comprising the following steps:
s1, acquiring a standby signal, and switching an internal loop of the wall-hanging furnace into a heat exchange loop in a bathroom mode;
s2, executing a heat preservation mode, wherein the heat preservation mode is to stop supplying heat to the heat exchange loop and close a circulating pump of the heat exchange loop;
s3, acquiring a first temperature value of the heat exchange loop, judging whether the first temperature value is smaller than a first preset value, if not, returning to the step S2, and if so, executing the step S4;
s4, executing a heating mode, wherein the heating mode is to heat the heat exchange loop and start the circulating pump;
s5, acquiring the first temperature value of the heat exchange loop, judging whether the first temperature value is larger than or equal to a second preset value, if not, returning to the step S4, if so, stopping executing the heating mode, and returning to the step S2.
2. The zero-cold-water control method of the wall-hanging stove according to claim 1, wherein in the step S1, the method specifically comprises:
and acquiring a standby signal, judging whether the wall-mounted furnace is in a bathroom mode, if so, keeping a heat exchange loop of the bathroom mode, and if not, switching a three-way valve to the heat exchange loop of the bathroom mode.
3. The zero-cold-water control method of the wall-hanging stove according to claim 1, wherein in the steps S3 and S5, the step of obtaining the first temperature value of the heat exchange loop is specifically:
and acquiring a first temperature value of the water inlet end position of the heat exchanger of the heat exchange loop.
4. The zero-cold-water control method of the wall-hanging stove according to claim 1, wherein in the step S4, the method specifically comprises:
and acquiring a first temperature value of the heat exchange loop and a second temperature value of the bathroom loop, judging whether the first temperature value is smaller than a first preset value and whether the second temperature value is smaller than a third preset value, if not, returning to the step S2, and if so, executing the step S4.
5. The zero-cold-water control method of the wall-hanging stove according to claim 4, wherein in the step S4, the step of obtaining the second temperature value of the bathroom loop specifically comprises:
and acquiring a second temperature value of a bathroom water outlet end position of the bathroom loop.
6. The zero-cold-water control method for the wall-hanging stove according to claim 1, wherein the first preset value is 40 ℃ and the second preset value is 50 ℃.
7. The zero-cold-water control method of the wall-hanging stove according to claim 4, wherein the third preset value is 34 ℃.
8. The zero cold water control method of the wall hanging stove according to any one of claims 1 to 7, characterized by further comprising, between the step S2 and the step S3, the steps of;
w1, judging whether an operation signal is acquired, if so, executing a step W2, and if not, executing a step S3;
w2: the run state is executed.
9. The zero cold water control method of the wall hanging stove according to any one of claims 1 to 7, characterized by further comprising, between the step S4 and the step S5, the steps of;
w3, judging whether an operation signal is acquired, if so, executing a step W4, and if not, executing a step S5;
w4: the run state is executed.
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| CN202010376347.1A CN111520918A (en) | 2020-05-06 | 2020-05-06 | Zero-cold-water control method for wall-mounted boiler |
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| CN202010376347.1A CN111520918A (en) | 2020-05-06 | 2020-05-06 | Zero-cold-water control method for wall-mounted boiler |
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