CN111351119B - Intelligent zero-cold-water wall-mounted boiler and intelligent control method - Google Patents
Intelligent zero-cold-water wall-mounted boiler and intelligent control method Download PDFInfo
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- CN111351119B CN111351119B CN202010135178.2A CN202010135178A CN111351119B CN 111351119 B CN111351119 B CN 111351119B CN 202010135178 A CN202010135178 A CN 202010135178A CN 111351119 B CN111351119 B CN 111351119B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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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
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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
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
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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
- F24H9/2014—Arrangement or mounting of control or safety devices for water heaters using electrical energy supply
- F24H9/2028—Continuous-flow heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/10—Fire place
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Abstract
The invention relates to an intelligent zero-cold-water wall-mounted furnace and an intelligent control method, which comprise a tap water inlet pipe, a floor heating coil pipe, a plate type heat exchanger, a water collecting pipe, a first check valve and a second check valve, wherein the plate type heat exchanger is respectively provided with a bathroom water inlet pipe, a bathroom water outlet pipe and two connecting pipes, one of them connecting pipe connection three-way valve, the one end parallel connection of three-way valve has a plurality of ground heating coil, every ground heating coil's exit end all links to each other with the entrance point that collects the water pipe, the three-way valve other end links to each other with heat exchanger's outlet pipe, another connecting pipe is connected heating system circulating water pump respectively and is collected the exit end of water pipe, heating system circulating water pump one end links to each other with heat exchanger's inlet tube, the combustor is installed in the heat exchanger below, the parallel connection has a plurality of to mix the water valve on the bathroom outlet pipe, every mixes the water valve and is connected with a bathroom apparatus. The invention not only meets the requirements of safe use and instant heating, but also brings more energy-saving and comfortable use experience to users.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to an intelligent zero-cold-water wall-mounted boiler and an intelligent control method.
Background
With the improvement of living standard, the requirement of users on the comfort level of hot water use is higher and higher, the users no longer simply pursue hot water, and the constant temperature performance, the hot water waiting time, the water flow and the like become the examination indexes when the users purchase hot water products, so the zero cold water functions of the gas water heater and the wall-mounted boiler are generated at the same time. The water temperature of a zero-cold water pipe of the existing zero-cold water wall-mounted boiler is uneven, so that the use of the zero-cold water wall-mounted boiler is suddenly cooled and suddenly heated; the zero-cold-water pump of the existing zero-cold-water wall-mounted boiler is started and stopped frequently, so that power resources are wasted and heating use is influenced; the existing zero-cold-water wall-mounted boiler needs to be manually closed after the zero-cold-water function is started, so that the operation is troublesome, and when a user forgets to close or does not know the need to close, the zero-cold-water function is always in a starting state, so that a great deal of power resources and natural gas are wasted; when the existing zero-cold-water wall-mounted boiler is in a zero-cold-water starting state for heating, bathroom water is started, and the wall-mounted boiler cannot judge that water is used by a user, so that a zero-cold-water pump is not turned off, and power resources are wasted; the temperature of the existing zero-cold water wall-mounted boiler can be burnt to be more than 60 ℃, and the maximum temperature limit is too high, so that a user can be scalded when using the zero-cold water wall-mounted boiler; the invention not only meets the use safety, but also solves the use problem, and brings more energy-saving and comfortable use experience to users.
Disclosure of Invention
The invention aims to solve the technical problem of providing an intelligent zero-cold-water wall-mounted boiler and an intelligent control method, which not only meet the requirements of safe use and heating when the boiler is opened, but also bring more energy-saving and comfortable use experience to users.
The technical scheme adopted by the invention for solving the technical problems is as follows: the intelligent zero-cold-water wall-mounted furnace comprises a tap water inlet pipe, floor heating coils, a plate heat exchanger, a heating system circulating water pump, a burner, a heat exchanger, a collecting water pipe, a first check valve and a second check valve, wherein the plate heat exchanger is respectively provided with the bathroom water inlet pipe, the bathroom water outlet pipe and two connecting pipes, one connecting pipe is connected with a three-way valve, one end of the three-way valve is connected with a plurality of floor heating coils in parallel, the outlet end of each floor heating coil is connected with the inlet end of the collecting water pipe, the other end of the three-way valve is connected with the water outlet pipe of the heat exchanger, the other connecting pipe is respectively connected with the heating system circulating water pump and the outlet end of the collecting water pipe, one end of the heating system circulating water pump is connected with the water inlet pipe of the heat exchanger, the burner is arranged below the heat exchanger, and the bathroom water outlet pipe is connected with a plurality of water mixing valves, every mixes water valve and is connected with a bathroom apparatus, the exit end of bathroom outlet pipe be connected with first check valve or wet return, when being connected with first check valve, the entrance point of first check valve and running water inlet tube link to each other, when being connected with the wet return, the one end of wet return link to each other with the entrance point of second check valve and bathroom inlet tube respectively, this second check valve links to each other with the exit end of running water inlet tube, the running water inlet tube on parallel connection have with mix the cold water pipe that water valve one-to-one links to each other.
As a supplement to the technical solution of the present invention, a fan is disposed above the heat exchanger.
As a supplement to the technical scheme of the invention, a bathroom inlet water temperature probe is arranged at the joint of the bathroom inlet pipe and the plate heat exchanger.
As a supplement to the technical scheme of the invention, a bathroom outlet water temperature probe is arranged at the joint of the bathroom outlet pipe and the plate heat exchanger.
As a supplement to the technical scheme of the invention, a zero-cold-water circulating water pump is arranged at the joint of the bathroom water inlet pipe and the plate heat exchanger.
As a supplement to the technical scheme of the invention, a heating temperature probe is arranged at the joint of the water outlet pipe of the heat exchanger and the connecting pipe.
As a supplement to the technical scheme of the invention, a detachable plug is arranged on one side of the connecting position of the outlet end of the tap water inlet pipe and the second one-way valve.
As a supplement to the technical scheme of the invention, a detachable plug is arranged on one side of the connection position of the outlet end of the bathroom water outlet pipe and the first one-way valve.
As a supplement to the technical scheme of the invention, the bathroom water inlet pipe and the water collecting pipe are connected through a water supplementing valve.
As a supplement to the technical scheme of the invention, the anti-freezing water heater also comprises an anti-freezing function, when the temperature of inlet water or outlet water is continuously lower than 5 ℃ for 2s, the burner is started, and when the temperature of inlet water and outlet water is simultaneously higher than 30, the burner is closed.
An intelligent start-stop control method for an intelligent zero-cold-water wall-mounted boiler comprises the following specific operation steps:
(a) the initial state of the wall-mounted furnace is a cold standby state, the cold standby state is switched into a hot standby state by pressing a power key, the hot standby state returns to the cold standby state by pressing the power key, and after the hot standby state is entered, whether the starting condition is met or not is judged by pressing a zero cold water key;
(b) the starting condition needs to simultaneously meet the following two requirements, wherein the water inlet temperature is less than the set temperature of-2 ℃; 2. the outlet water is less than the set temperature-return difference temperature, the return difference temperature can be manually set to 3-12 ℃, and the factory default is 5 ℃;
(c) if the starting condition is not met, judging whether the standby time is more than or equal to 15min, if the standby time is more than or equal to 15min, starting the zero-cold-water pump (4) for circulation and returning to judge whether the starting condition is met, and if the standby time is not more than or equal to 15min, directly returning to judge whether the starting condition is met;
(d) if the starting condition is met, starting a zero-cold-water pump (4) and igniting, and then judging whether the stopping condition is met, wherein the stopping condition only needs to meet one of two requirements at the same time, 1, lasting for 10 seconds, the outlet water temperature is more than or equal to the set temperature + A, the A can be manually set to be +3 to +12 ℃, and the factory default is +5 ℃; 2. and (2) continuing for 10S, wherein the water inlet temperature is more than or equal to the set temperature + B, B can be manually set to be-3 to +2 ℃, the water is defaulted to be-2 ℃ when leaving a factory, if the stopping condition is not met, the water is kept in the original state, if the stopping condition is met, the fire is turned off, the water is circulated after entering, and the post-circulation time is as follows: and (3) the heating time is less than 1 minute, the post-cycle time is 1 minute, the 3 minutes is more than the heating time and is more than 1 minute, the post-cycle time is the heating time, the heating time is more than 3 minutes, the post-cycle time is 3 minutes, and the post-cycle time is finished, and then whether the stopping condition is met or not is judged.
An intelligent pressurization control method using the intelligent zero-cold-water wall-mounted boiler comprises the following specific operation steps:
(a) firstly, judging whether the condition of converting zero cold water into bathroom water is met or not;
(b) and a heating state: starting a heating water pump (8) and igniting;
(c) and a zero cold water state: starting a heating water pump (8), starting a zero cold water pump (4) and igniting;
(d) the condition of changing zero cold water into water for the bathroom only needs to meet one of three requirements at the same time, wherein 1, after the water quantity change frequency is less than +/-3 HZ and exceeds 10S, the change in 2S is more than +4 HZ; 2. the water flow is more than or equal to 7L/Min; 3. single burn times in excess of 30 minutes;
(e) and the conversion formula of the frequency and the water flow is as follows: f =8.1Q-3, wherein f is frequency and Q is water flow;
(f) if the condition of zero cold water to bathroom water is not met, the original state is kept;
(g) if the condition of converting zero cold water into bathroom water is met, converting the bathroom water into a bathroom water state, and then judging whether the pressurizing starting condition is met;
(h) and bathroom water state: starting a heating water pump (8), closing a zero cold water pump (4) and igniting;
(i) and the pressure boost starting condition is that when the water flow lasts for 2s and is more than 2.2L/min and less than 5L/min and the water inlet temperature is less than 35 ℃;
(j) if the supercharging starting condition is not met, the supercharging function is not started;
(k) if the pressurization starting condition is met, starting pressurization, starting a zero-cold-water pump (4), and then judging whether the pressurization stopping condition is met;
(l) And supercharging stop conditions: when the water flow lasts for 2s and is more than 9L/min, the zero-cold-water pump (4) stops working; after the zero-cold-water pump (4) continuously operates for 10 seconds in the pressurization mode, when the water inlet temperature is detected to be more than or equal to 35 ℃, the zero-cold-water pump (4) stops working;
(m) if the pressurization stopping condition is met, closing the pressurization function;
(n) if the supercharging stop condition is not satisfied, maintaining the supercharging function.
Has the advantages that: the invention relates to an intelligent zero-cold-water wall-mounted furnace and an intelligent control method.A cold water of a bathroom water inlet pipe enters a plate type heat exchanger, a burner works, water in the heat exchanger is heated, heated hot water enters the plate type heat exchanger, so that the cold water entering the plate type heat exchanger is heated, and finally domestic hot water is discharged from a bathroom water outlet pipe and is supplied to a plurality of bathroom appliances; the entrance point of the floor heating coil is communicated with the three-way valve, and hot water of the heat exchanger flows through the floor heating coils to realize simultaneous heating in a plurality of places. When the second one-way valve is closed, the bathroom outlet pipe and the bathroom inlet tube form a circulation heating loop, cold water in the circulation heating loop is continuously heated through the plate heat exchanger, hot water with the required temperature is finally obtained, and zero cold water is achieved.
Drawings
FIG. 1 is a schematic view of the present invention without a return pipe;
FIG. 2 is an enlarged view of a portion of FIG. 1 of the present invention;
FIG. 3 is a schematic view of the structure of the present invention with a return pipe;
FIG. 4 is an enlarged view of a portion of FIG. 3 of the present invention;
FIG. 5 is a logic diagram of the intelligent start stop control according to the present invention;
fig. 6 is a logic diagram of the intelligent boost control according to the present invention.
The figure is as follows: 1. the heating system comprises a tap water inlet pipe, 2, a floor heating coil pipe, 3, a bathroom water inlet pipe, 4, a zero-cold-water circulating water pump, 5, a plate type heat exchanger, 6, a connecting pipe, 7, a three-way valve, 8, a heating system circulating water pump, 9, a burner, 10, a heat exchanger, 11, a fan, 12, a heating temperature probe, 13, a bathroom water inlet temperature probe, 14, a bathroom water outlet temperature probe, 15, a bathroom water outlet pipe, 16, a bathroom appliance, 17, a collecting water pipe, 18, a water replenishing valve, 19, a water mixing valve, 20, a cold water pipe, 21, a plug, 22, a first check valve, 23, a second check valve, 24 and a water return pipe.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The embodiment of the invention relates to an intelligent zero-cold-water wall-mounted furnace and an intelligent control method, as shown in figures 1-6, the intelligent zero-cold-water wall-mounted furnace comprises a tap water inlet pipe 1, a floor heating coil 2, a plate type heat exchanger 5, a heating system circulating water pump 8, a burner 9, a heat exchanger 10, a water collecting pipe 17, a first one-way valve 22 and a second one-way valve 23, wherein the plate type heat exchanger 5 is respectively provided with a bathroom water inlet pipe 3, a bathroom water outlet pipe 15 and two connecting pipes 6, one connecting pipe 6 is connected with a three-way valve 7, one end of the three-way valve 7 is connected with a plurality of floor heating coils 2 in parallel, the outlet end of each floor heating coil 2 is connected with the inlet end of the water collecting pipe 17, the other end of the three-way valve 7 is connected with the water outlet pipe of the heat exchanger 10, the other connecting pipe 6 is respectively connected with the outlet ends of the heating system circulating water pump 8 and the water collecting pipe 17, one end of the heating system circulating water pump 8 is connected with the water inlet pipe of the heat exchanger 10, the combustor 9 install in heat exchanger 10 below, bathroom outlet pipe 15 on be connected with a plurality of and mix water valve 19, every mixes water valve 19 and is connected with a bathroom apparatus 16, bathroom outlet pipe 15's exit end be connected with first check valve 22 or wet return 24, when being connected with first check valve 22, first check valve 22 link to each other with the entrance point of running water inlet tube 1, when being connected with wet return 24, the entrance point of one end of wet return 24 link to each other with second check valve 23 and bathroom inlet tube 3 respectively, this second check valve 23 links to each other with the exit end of running water inlet tube 1, running water inlet tube 1 on parallel connection have with mix the cold water pipe 20 that water valve 19 one-to-one links to each other.
Cold water in the bathroom water inlet pipe 1 enters the plate type heat exchanger 5, the burner 9 works, water in the heat exchanger 10 is heated, heated hot water enters the plate type heat exchanger 5, the cold water entering the plate type heat exchanger 5 is heated, and finally domestic hot water flows out of the bathroom water outlet pipe 15 and is supplied to a plurality of bathroom appliances 16; the entrance point of the floor heating coil 2 is communicated with the three-way valve 7, and hot water of the heat exchanger 10 flows through the floor heating coils 2, so that multiple places can be heated simultaneously. Fig. 3 shows the water return pipe, when the second check valve 23 is closed, the bathroom water outlet pipe 15 and the bathroom water inlet pipe 3 form a circulation heating loop, and the cold water in the circulation heating loop is continuously heated by the plate heat exchanger 5, so as to finally obtain the hot water with the required temperature, thereby realizing zero cold water.
A fan 11 is arranged above the heat exchanger 10.
And a bathroom inlet water temperature probe 13 is arranged at the joint of the bathroom inlet pipe 3 and the plate heat exchanger 5.
And a bathroom outlet water temperature probe 14 is arranged at the joint of the bathroom outlet pipe 15 and the plate heat exchanger 5.
And a zero cold water circulating water pump 4 is arranged at the joint of the bathroom water inlet pipe 3 and the plate type heat exchanger 5.
A heating temperature probe 12 is arranged at the joint of the water outlet pipe of the heat exchanger 10 and the connecting pipe 6.
And a detachable plug 21 is arranged on one side of the joint of the outlet end of the tap water inlet pipe 1 and the second one-way valve 23.
A detachable plug 21 is arranged on one side of the connection part of the outlet end of the bathroom water outlet pipe 15 and the first one-way valve 22.
The bathroom water inlet pipe 3 is connected with the water collecting pipe 17 through a water replenishing valve 18. When the water in the water collecting pipe 17 is low, the water replenishing valve 18 is opened to supply water to the water collecting pipe 17.
The water inlet and outlet temperature control device also comprises an anti-freezing function, when the water inlet temperature or the water outlet temperature is continuously lower than 5 ℃ for 2s, the burner 9 is started, and when the water inlet temperature and the water outlet temperature are simultaneously higher than 30, the burner 9 is closed.
As shown in fig. 5, an intelligent start-stop control method using the intelligent zero-cold-water wall-mounted boiler specifically includes the following operation steps:
(a) the initial state of the wall-mounted furnace is a cold standby state, the cold standby state is switched into a hot standby state by pressing a power key, the hot standby state returns to the cold standby state by pressing the power key, and after the hot standby state is entered, whether the starting condition is met or not is judged by pressing a zero cold water key;
(b) the starting condition needs to simultaneously meet the following two requirements, wherein the water inlet temperature is less than the set temperature of-2 ℃; 2. the outlet water is less than the set temperature-return difference temperature, the return difference temperature can be manually set to 3-12 ℃, and the factory default is 5 ℃;
(c) if the starting condition is not met, judging whether the standby time is more than or equal to 15min, if the standby time is more than or equal to 15min, starting the zero-cold-water pump (4) for circulation and returning to judge whether the starting condition is met, and if the standby time is not more than or equal to 15min, directly returning to judge whether the starting condition is met;
(d) if the starting condition is met, starting a zero-cold-water pump (4) and igniting, and then judging whether the stopping condition is met, wherein the stopping condition only needs to meet one of two requirements at the same time, 1, lasting for 10 seconds, the outlet water temperature is more than or equal to the set temperature + A, the A can be manually set to be +3 to +12 ℃, and the factory default is +5 ℃; 2. and (2) continuing for 10S, wherein the water inlet temperature is more than or equal to the set temperature + B, B can be manually set to be-3 to +2 ℃, the water is defaulted to be-2 ℃ when leaving a factory, if the stopping condition is not met, the water is kept in the original state, if the stopping condition is met, the fire is turned off, the water is circulated after entering, and the post-circulation time is as follows: and (3) the heating time is less than 1 minute, the post-cycle time is 1 minute, the 3 minutes is more than the heating time and is more than 1 minute, the post-cycle time is the heating time, the heating time is more than 3 minutes, the post-cycle time is 3 minutes, and the post-cycle time is finished, and then whether the stopping condition is met or not is judged.
As shown in fig. 6, an intelligent pressurization control method using the intelligent zero-cold-water wall-mounted boiler specifically includes the following steps:
(a) firstly, judging whether the condition of converting zero cold water into bathroom water is met or not;
(b) and a heating state: starting a heating water pump (8) and igniting;
(c) and a zero cold water state: starting a heating water pump (8), starting a zero cold water pump (4) and igniting;
(d) the condition of changing zero cold water into water for the bathroom only needs to meet one of three requirements at the same time, wherein 1, after the water quantity change frequency is less than +/-3 HZ and exceeds 10S, the change in 2S is more than +4 HZ; 2. the water flow is more than or equal to 7L/Min; 3. single burn times in excess of 30 minutes;
(e) and the conversion formula of the frequency and the water flow is as follows: f =8.1Q-3, wherein f is frequency and Q is water flow;
(f) if the condition of zero cold water to bathroom water is not met, the original state is kept;
(g) if the condition of converting zero cold water into bathroom water is met, converting the bathroom water into a bathroom water state, and then judging whether the pressurizing starting condition is met;
(h) and bathroom water state: starting a heating water pump (8), closing a zero cold water pump (4) and igniting;
(i) and the pressure boost starting condition is that when the water flow lasts for 2s and is more than 2.2L/min and less than 5L/min and the water inlet temperature is less than 35 ℃;
(j) if the supercharging starting condition is not met, the supercharging function is not started;
(k) if the pressurization starting condition is met, starting pressurization, starting a zero-cold-water pump (4), and then judging whether the pressurization stopping condition is met;
(l) And supercharging stop conditions: when the water flow lasts for 2s and is more than 9L/min, the zero-cold-water pump (4) stops working; after the zero-cold-water pump (4) continuously operates for 10 seconds in the pressurization mode, when the water inlet temperature is detected to be more than or equal to 35 ℃, the zero-cold-water pump (4) stops working;
(m) if the pressurization stopping condition is met, closing the pressurization function;
(n) if the supercharging stop condition is not satisfied, maintaining the supercharging function.
Product problems in the common market: the supercharging when the user wants to supercharge cannot be judged in a humanized manner.
The invention adds the supercharging function:
and (3) pressurizing starting conditions, namely when the water flow is more than 2.2L/min and less than 5L/min within 2s and the inlet water temperature is less than 35 ℃.
And (4) a pressurization stopping condition, namely stopping the zero-cold-water pump 4 when the water flow (lasting for 2 s) is more than 9L/min. And after the pump continuously operates for 10 seconds in the pressurization mode, when the temperature of the inlet water is detected to be more than or equal to 35 ℃, the zero-cold-water pump 4 stops working. The boost can be restarted if the start condition is met (note that there may be water left after the water pump is stopped).
Product problems in the common market: the zero-cold water pipe of the zero-cold water wall-mounted boiler has no anti-freezing function. And because the wall-mounted boiler is mostly used in cold areas, even if pipelines are indoors, the pipelines can be frozen and cannot be used without the anti-freezing function, and further, the safety problem is caused.
The invention adds the anti-freezing function: the starting condition is that the temperature of inlet water or outlet water is continuously 2s and is lower than 5 ℃; the stop condition is that the water inlet temperature and the water outlet temperature are simultaneously more than 30 ℃.
Anti-jamming function: the anti-sticking (water pump rotating for 10s) is started after 30 minutes of first power-on and is started once in 24 hours (water pump rotating for 10 s).
Bathroom, zero cold water, heating priority: bathroom > zero cold water > heating
(a) The wall-mounted boiler is provided with a control panel, a menu on the control panel can select a 'zero cold water mode' or a 'common mode', the menu is defaulted to be the 'zero cold water mode', a water return pipe (24) for preventing a user from not loading zero cold water is arranged, or when the zero cold water return pipe (24) leaks water and the zero cold water function cannot be used temporarily, due to the fact that the wall-mounted boiler with the zero cold water function has the anti-blocking function, when the zero cold water is prevented from being blocked and a zero cold water pump is rotated, the fault of the water pump can be reported, and the wall-mounted boiler cannot be normally used;
(b) in the zero cold water mode, the zero cold water function tries to start ignition for 3 times, and if the starting ignition fails, the starting ignition is locked for 15 minutes; then trying for 3 times to start ignition, and if ignition is failed, locking for 15 minutes; if the starting ignition is tried for 3 times, the zero cold water function is locked and not started when the starting ignition fails, and the starting ignition can be recovered only manually (but the fault of automatic recovery can be removed when the bathroom water is used);
(c) after the forced interval exists, namely after the thermal cycle, the forced interval is carried out, the post cycle is less than or equal to 3 times, if the post cycle of the fourth time also meets the starting condition, the machine is also forcibly stopped for 0-30 minutes, the default is 0 minute, the zero cold water path of a user is too long, the heat dissipation is too fast, and the use during the heating use is influenced;
(d) the setting range of the zero-cold water temperature is 35-45 ℃, and the default is 45 ℃ when the temperature is set to be over 45 ℃, so that a user is prevented from being scalded when the temperature is set too high;
(e) and after one minute of bathroom finishing, judging a zero cold water starting condition again without bathroom water: the water pump is switched to the zero cold water state to be started when the water is turned off and soap is turned on during bathing, so that the zero cold water state and the bathroom state are frequently switched;
(f) pressing a zero cold water key to start zero cold water, keeping the temperature for 0-99 minutes, defaulting for 60 minutes (starting the zero cold water and automatically exiting after 60 minutes), preventing the user from forgetting to close the zero cold water after use, keeping in a zero cold water state all the time, consuming electricity, and setting a zero cold water starting function through timing if the user wants to use the zero cold water in a whole day or use the zero cold water in a certain period.
Claims (2)
1. An intelligent pressurization control method of an intelligent zero-cold-water wall-mounted furnace comprises a tap water inlet pipe (1), floor heating coils (2), a plate-type heat exchanger (5), a heating system circulating water pump (8), a burner (9), a heat exchanger (10), a water collecting pipe (17), a first check valve (22) and a second check valve (23), wherein the plate-type heat exchanger (5) is respectively provided with a bathroom water inlet pipe (3), a bathroom water outlet pipe (15) and two connecting pipes (6), one connecting pipe (6) is connected with a three-way valve (7), one end of the three-way valve (7) is connected with a plurality of floor heating coils (2) in parallel, the outlet end of each floor heating coil (2) is connected with the inlet end of the water collecting pipe (17), the other end of the three-way valve (7) is connected with the water outlet pipe of the heat exchanger (10), the other connecting pipe (6) is respectively connected with a circulating water pump (8) of the heating system and the outlet end of a water collecting pipe (17), one end of the circulating water pump (8) of the heating system is connected with the water inlet pipe of the heat exchanger (10), the burner (9) is installed below the heat exchanger (10), a plurality of water mixing valves (19) are connected on the bathroom water outlet pipe (15), each water mixing valve (19) is connected with a bathroom appliance (16), the outlet end of the bathroom water outlet pipe (15) is connected with a first one-way valve (22) or a water return pipe (24), when the first one-way valve (22) is connected, the first one-way valve (22) is connected with the inlet end of the tap water inlet pipe (1), when the water return pipe (24) is connected, one end of the water return pipe (24) is respectively connected with the inlet ends of the second one-way valve (23) and the bathroom water inlet pipe (3), the second one-way valve (23) is connected with the outlet end of the tap water inlet pipe (1), and the tap water inlet pipe (1) is connected in parallel with cold water pipes (20) which are correspondingly connected with the water mixing valves (19) one by one;
a fan (11) is arranged above the heat exchanger (10);
a bathroom inlet water temperature probe (13) is arranged at the joint of the bathroom inlet pipe (3) and the plate heat exchanger (5); a bathroom outlet water temperature probe (14) is arranged at the joint of the bathroom outlet pipe (15) and the plate heat exchanger (5);
a zero cold water circulating water pump (4) is arranged at the joint of the bathroom water inlet pipe (3) and the plate heat exchanger (5);
a heating temperature probe (12) is arranged at the joint of the water outlet pipe of the heat exchanger (10) and the connecting pipe (6);
a detachable plug (21) is arranged on one side of the joint of the outlet end of the tap water inlet pipe (1) and the second one-way valve (23), and a detachable plug (21) is arranged on one side of the joint of the outlet end of the bathroom water outlet pipe (15) and the first one-way valve (22);
the method is characterized in that: the intelligent supercharging control method comprises the following specific operation steps:
(a) firstly, judging whether the condition of converting zero cold water into bathroom water is met or not;
(b) and a heating state: starting a heating water pump (8) and igniting;
(c) and a zero cold water state: starting a heating water pump (8), starting a zero cold water pump (4) and igniting;
(d) the condition of changing zero cold water into water for the bathroom only needs to meet one of three requirements at the same time, wherein 1, after the water quantity change frequency is less than +/-3 HZ and exceeds 10S, the change in 2S is more than +4 HZ; 2. the water flow is more than or equal to 7L/min; 3. single burn times in excess of 30 minutes;
(e) and the conversion formula of the frequency and the water flow is as follows: f =8.1Q-3, wherein f is frequency and Q is water flow;
(f) if the condition of zero cold water to bathroom water is not met, the original state is kept;
(g) if the condition of converting zero cold water into bathroom water is met, converting the bathroom water into a bathroom water state, and then judging whether the pressurizing starting condition is met;
(h) and bathroom water state: starting a heating water pump (8), closing a zero cold water pump (4) and igniting;
(i) and the pressure boost starting condition is that when the water flow lasts for 2s and is more than 2.2L/min and less than 5L/min and the water inlet temperature is less than 35 ℃;
(j) if the supercharging starting condition is not met, the supercharging function is not started;
(k) if the pressurization starting condition is met, starting pressurization, starting a zero-cold-water pump (4), and then judging whether the pressurization stopping condition is met;
(l) And supercharging stop conditions: when the water flow lasts for 2s and is more than 9L/min, the zero-cold-water pump (4) stops working; after the zero-cold-water pump (4) continuously operates for 10 seconds in the pressurization mode, when the water inlet temperature is detected to be more than or equal to 35 ℃, the zero-cold-water pump (4) stops working;
(m) if the pressurization stopping condition is met, closing the pressurization function;
(n) if the supercharging stop condition is not satisfied, maintaining the supercharging function.
2. The intelligent pressurization control method of the intelligent zero-cold-water wall-mounted boiler according to claim 1, wherein the intelligent start-stop control method comprises the following specific operation steps:
(a) the initial state of the wall-mounted furnace is a cold standby state, the cold standby state is switched into a hot standby state by pressing a power key, the hot standby state returns to the cold standby state by pressing the power key, and after the hot standby state is entered, whether the starting condition is met or not is judged by pressing a zero cold water key;
(b) the starting condition needs to simultaneously meet the following two requirements, wherein the water inlet temperature is less than the set temperature of-2 ℃; 2. the outlet water is less than the set temperature-return difference temperature, the return difference temperature is manually set to be 3-12 ℃, and the factory default is 5 ℃;
(c) if the starting condition is not met, judging whether the standby time is more than or equal to 15min, if the standby time is more than or equal to 15min, starting the zero-cold-water pump (4) for circulation and returning to judge whether the starting condition is met, and if the standby time is not more than or equal to 15min, directly returning to judge whether the starting condition is met;
(d) if the starting condition is met, starting a zero-cold-water pump (4) and igniting, and then judging whether the stopping condition is met or not, wherein the stopping condition only needs to meet one of two requirements, 1, lasting for 10 seconds, the outlet water temperature is more than or equal to the set temperature + A, the A is manually set to be +3 to +12 ℃, and the default of delivery is +5 ℃; 2. and (2) continuing for 10S, wherein the water inlet temperature is more than or equal to the set temperature + B, B is manually set to be-3 to +2 ℃, the water is defaulted to be-2 ℃ when leaving a factory, if the stopping condition is not met, the water is kept in the original state, if the stopping condition is met, the fire is turned off, the water is circulated after entering, and the post-circulation time is as follows: and (3) the heating time is less than 1 minute, the post-cycle time is 1 minute, the 3 minutes is more than the heating time and is more than 1 minute, the post-cycle time is the heating time, the heating time is more than 3 minutes, the post-cycle time is 3 minutes, and the post-cycle time is finished, and then whether the stopping condition is met or not is judged.
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| CN112594772A (en) * | 2020-11-17 | 2021-04-02 | 华帝股份有限公司 | Wall-mounted boiler zero-cold-water starting method |
| 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 |
| CN112503779A (en) * | 2020-12-16 | 2021-03-16 | 万家乐热能科技有限公司 | Zero-cold-water wall-mounted furnace capable of improving pipeline adaptability and control method |
| CN114763937A (en) * | 2021-01-15 | 2022-07-19 | 芜湖美的厨卫电器制造有限公司 | Hanging stove equipment and hanging stove heat cycle system that has it |
| CN114279086B (en) * | 2021-12-31 | 2023-05-23 | 浙江广涛卫厨有限公司 | Zero cold water hanging stove system |
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