CN113883715B - Cold and hot mixed constant temperature gas water heater and control method thereof - Google Patents
Cold and hot mixed constant temperature gas water heater and control method thereof Download PDFInfo
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- CN113883715B CN113883715B CN202111037956.5A CN202111037956A CN113883715B CN 113883715 B CN113883715 B CN 113883715B CN 202111037956 A CN202111037956 A CN 202111037956A CN 113883715 B CN113883715 B CN 113883715B
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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
- F24H1/107—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 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
- F24H9/14—Arrangements for connecting different sections, e.g. in 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
- F24H9/20—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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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- Mechanical Engineering (AREA)
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Abstract
The application relates to a cold and hot mixed constant temperature gas water heater and a control method thereof. The combustor sets up in hot water district lower extreme, inlet tube A switch-on combustor bottom, and thermometer A sets up in hot water district lateral wall, and thermometer A and controller are connected with circuit system, and the control by temperature change room sets up side by side and passes through the drinking-water piping connection about with hot water district, and the division board sets up between hot water district and control by temperature change room, and the ware setting is in the control by temperature change room bottom to the water pumper, and inlet tube B sets up in the control by temperature change room upper end. According to the cold and hot mixed type constant-temperature gas water heater and the control method thereof, the gas water heating and the temperature control are operated separately, so that the constant water outlet temperature is obtained, the condition of uneven water outlet cold and hot is avoided, and the use comfort of a user is improved.
Description
Technical Field
The application relates to the field of water heaters, in particular to a cold and hot mixed constant temperature gas water heater and a control method thereof.
Background
At present, people gradually turn out to heat water in a boiler, the water heater is a water heating appliance commonly used in daily life, and the water heater can be divided into an electric water heater and a gas water heater according to different heating sources, and the gas water heater can realize instant hot water output and is widely used. The water inlet pipe of the gas water heater conveys tap water to the burner, the gas is burnt and heated, and then the tap water is sent out through the water outlet pipe for users to use. In the use, for example, when bathing, the user needs to stop hot water intermittently, and after the user closes the water, the high-temperature hot water still exists in the burner, and if the high-temperature hot water is heated again, the high-temperature water can be changed into high-temperature water, so that the user is easy to be scalded. The water heater is restarted in a short time, the water outlet temperature of the water heater can not be heated in time because of ignition preparation delay in the starting process of the machine, a short cold water output phenomenon appears, and the phenomenon is particularly obvious in winter, so that the user experience is greatly influenced. Meanwhile, the working mode of the gas water heater which is used at present is not suitable for frequent on-off work, and each on-off can bring damage to the burner and waste gas.
In the prior art, in order to solve the problem, most water heater manufacturers adopt auxiliary heating methods such as adding a water pump to use circulating water, using a proportional valve or connecting small electric water heaters such as kitchen appliances in series, and the like, so that the investment cost of users is obviously increased, the problems of ignition preparation delay and water temperature rise during shutdown after restarting the gas water heater are not solved from the root, and only the fluctuation range of the water temperature is slowed down, but the time of constant-temperature hot water output is increased.
Therefore, there is a need for a constant temperature gas water heater capable of outputting constant temperature hot water, which is not affected by a midway stop and is not affected by the residual hot water amount, and chinese patent publication No.: CN103344046B, the name created by the application is: the control method of the constant-temperature gas water heater and the constant-temperature gas water heater comprise a main control board, a heat exchanger, a burner, a water inlet pipe and a water outlet pipe, and further comprise a bypass pipe, wherein the bypass pipe is connected with the water inlet pipe and the water outlet pipe, a bypass water server is arranged on the bypass pipe, a first temperature sensor is arranged at the outlet of the heat exchanger, a second temperature sensor is arranged at the outlet of the water outlet pipe, and the first temperature sensor, the second temperature sensor and the bypass water server are respectively and electrically connected with the main control board. Through setting up the bypass pipe between inlet tube and outlet pipe to be provided with the bypass water servo on the bypass pipe, the main control board is according to the temperature information that first temperature sensor and second temperature sensor gathered, and the water flow of control bypass water servo action adjustment bypass pipe makes the play water temperature of outlet pipe invariable, avoids exporting the hot water of too high temperature. The application only solves the problem of overheat of the water outlet, but does not solve the problem that cold water can appear when the ignition of the water heater is delayed in winter, and still can generate water temperature fluctuation, and the problem that the water temperature suddenly becomes cold when a user stops the water heater midway or adjusts the temperature of the water heater down still can appear.
The application provides a cold and hot mixed constant temperature gas water heater and a control method thereof, which adopt the separate operation of gas water heating and temperature control to obtain constant water outlet temperature, and the constant set water temperature is obtained by mixing the overheated water in a hot water area with the colder water in a temperature control chamber or the constant set water temperature is obtained by mixing the overheated water in the temperature control chamber with the cold water of a water inlet pipe B, so that the condition of uneven water outlet cold and hot is not generated, and the use comfort of users is improved. The combustion gas in the hot water area is stable, which is beneficial to saving fuel.
Disclosure of Invention
The application aims to provide a cold and hot mixed constant temperature gas water heater and a control method thereof, which are used for solving the problems in the background technology.
The application provides the following technical scheme: a cold and hot mixed constant temperature gas water heater comprises a hot water area, a burner, a water inlet pipe A, an air inlet pipe, a water outlet pipe, a thermometer A, a controller and a circuit system. The combustor is arranged at the lower end of the hot water area and is connected with the hot water area through a water pipe, the inlet of the air inlet pipe is connected with fuel gas, the air inlet valve and the outlet of the air inlet pipe is connected with the combustor, the thermometer A is arranged on the side wall of the hot water area and is used for detecting the water temperature in the hot water area and feeding back the water temperature to the controller, and the thermometer A and the controller are electrically connected with the circuit system. Still include control by temperature change room, division board, inlet tube B, water pumper and drinking-water pipe, control by temperature change room and hot water district control set up side by side and pass through drinking-water pipe connection for control the temperature and export by the outlet pipe, the division board sets up between hot water district and control by temperature change room, is used for dividing thermal-insulated water district and control by temperature change room, makes hot water district and control by temperature change room independently operate respectively, prevents each other the difference in temperature influence each other. The water pumping pipe penetrates through the partition plate, the inlet extends to the bottom of the hot water area, the outlet is connected with the water pumping device, the water pumping device is arranged on one side of the temperature control chamber close to the hot water area and used for pumping water in the hot water area to the temperature control chamber through the water pumping pipe, and the water inlet pipe B is arranged at the upper end of the temperature control chamber and used for adding cold water for cooling for temperature adjustment of the temperature control chamber.
Further, a pressure sensor A is arranged at the bottom of the hot water area, a pressure sensor B is arranged at the bottom of the temperature control chamber, and the mass of the residual water in the hot water area and the temperature control chamber can be obtained according to the cross-sectional areas of the hot water area and the temperature control chamber and the water density through the pressure sensor A and the pressure sensor B. The side wall of the temperature control chamber is close to the bottom and provided with a thermometer B for detecting the actual temperature in the temperature control chamber. The pressure sensor A, the pressure sensor B and the thermometer B are respectively and electrically connected with the circuit system and are used for transmitting water quantity and temperature signals to the controller.
Further, the inlet of the water inlet pipe A is connected with the inlet of the water inlet pipe B at a water inlet server, the water inlet server is used for controlling the water inlet flow of the water inlet pipe A and the water inlet pipe B respectively, the water inlet server is electrically connected with a circuit system and is provided with a thermometer C, and the thermometer C is used for detecting the water temperature of water discharged by the water inlet pipe A and the water inlet pipe B. The outlet of the joint of the water inlet pipe A and the water inlet pipe B at the water inlet server is provided with a flowmeter A and a flowmeter B respectively, and the flowmeter A and the flowmeter B are controlled by a controller and are used for controlling the water inflow of the water inlet pipe A and the water inlet pipe B, and the specific mass value of water inflow is controlled by the cross-sectional area of the water inlet pipe A and the water inlet pipe B and the density of water. The water outlet pipe is provided with a water outlet server for controlling the water outlet flow of the constant-temperature hot water.
Further, the cold and hot mixed constant temperature gas water heater further comprises a display end, wherein the display end comprises a temperature increasing button, a temperature reducing button, a power button, a set temperature value and an actual temperature value, and the display end is electrically connected with the circuit system. The display end is arranged on the front surface of the water heater and used for setting a required set temperature value by a user, and the set temperature value can be changed at any time during the use of the water heater. In other embodiments, the display end is arranged near the water outlet tap, so that the temperature can be conveniently regulated and the water heater can be conveniently turned on and off.
Further, temperature control room bottom sets up agitating unit, agitating unit includes motor, pivot and a plurality of stirring leaf, and motor and circuit system electric connection set up in the temperature control room bottom, and the pivot is connected with the motor, and stirring leaf evenly distributed is in the pivot. The stirring device is used for quickly mixing water with different temperatures in the temperature control device and is controlled by the controller. When two kinds of water with different water temperatures enter the temperature control chamber at the same time, the controller controls the stirring device to be started, otherwise, the stirring device is controlled to be closed.
Furthermore, the combustor further comprises a smoke exhauster and a smoke exhaust pipeline, the water is boiled only in the hot water area and the combustor by using the fuel gas, the combustion is stable, and a large amount of hot water is burned in the hot water area for standby at one time, so that the fuel gas can be saved. The heat-insulating layer is sleeved on the periphery of the hot water area and the temperature control area. The total amount of the constant-temperature hot water stored in the water heater is not more than half of the volume of the temperature control chamber.
A control method of a cold and hot mixed constant temperature gas water heater comprises the following steps:
and (3) water boiling stage:
the user turns on the water heater and sets a set temperature value T1,
the controller controls the water inlet pipe A to feed water, the gas is introduced into the gas inlet pipe, the burner heats the water temperature to a set temperature value T1 and then the water is conveyed to the hot water area through the water conveying pipe, the water pump pumps the hot water in the hot water area to the temperature control chamber through the water pumping pipe, and the hot water flows out through the water outlet pipe;
and (3) temperature adjustment:
the user resets the temperature value T1' in the process of using the water heater, and the controller controls the water pump to pump all the residual hot water in the hot water area to the temperature control chamber.
If T1' is greater than T1, the controller controls the water inlet pipe A to feed water, the gas is introduced into the gas inlet pipe, the heating water temperature of the burner reaches T2 which is greater than the set temperature value T1', the water is conveyed to the hot water area, the water pump pumps the hot water with the temperature of T2 in the hot water area to the temperature control chamber through the water pumping pipe and mixes the hot water with the original temperature T1 in the temperature control chamber until the temperature reaches T1', the water outlet pipe outputs water, the pumping amount is calculated according to the residual hot water amount and the temperature T1 of the temperature control chamber, the set temperature T1' and the water temperature T2 of the hot water area, and then the controller controls the burner to heat the water to T1', and the water is conveyed to the temperature control chamber through the water pump to be output.
If T1 'is smaller than T1, the controller controls the water inlet pipe B to enter water, and the water is mixed with the original temperature T1 in the temperature control chamber until the temperature meter B reaches T1', then the water inlet pipe B stops entering water, the water outlet pipe discharges water, the water inlet amount of the water inlet pipe B is calculated according to the water inlet temperature T3 of the water inlet pipe B, the residual water amount temperature T1, the set temperature value T1 'and the residual water amount, and then the controller controls the combustor (2) to heat the water to T1', and the water is conveyed to the temperature control chamber through the water pump and is output.
Wherein the water boiling period of the burner is 10-15 seconds.
Further, if the residual water quantity exists in the temperature control chamber in the water heating stage, and the temperature value is T, a user starts the water heater, sets the set temperature value T1, and then the controller directly enters the temperature adjustment stage according to the residual water quantity and the actual temperature value. Before the water heater is used each time, partial water can not be left in the temperature control chamber and the hot water area, and the water temperature of the residual water is generally smaller than a set temperature value, so that the residual water is required to be mixed with hot water again to obtain the set temperature value, and the residual water is used to save water resources. In other embodiments, the residual water in the temperature control chamber can be directly discharged, because the temperature of the residual water is generally not different from the temperature of the water entering the water inlet pipe, and the residual water can be directly discharged without repeated use. The controller controls the constant temperature hot water capacity stored in the temperature control chamber to be not more than 50% of the volume of the temperature control chamber.
Further, if the controller calculates that the sum of the residual water quantity in the temperature control chamber and the water inflow required to be mixed is larger than the volume of the temperature control chamber in the temperature adjustment stage, the controller firstly discharges the residual water quantity in the temperature control chamber to be used as the waste according to the maximum volume of the temperature control chamber, and then the water quantity mixing step is executed, namely, the sum of the residual water quantity in the temperature control chamber and the water inflow required to be mixed before the water quantity is mixed is smaller than or equal to the volume of the temperature controller. The volume of the temperature control chamber is larger than that of the combustion chamber, so that the temperature control chamber has enough space to mix water with different temperatures.
Further, the method for controlling the temperature mixing temperature of the temperature control chamber to reach T1' by the temperature adjusting stage controller comprises the following steps:
if T1' is greater than T1, the controller controls the pump to pump a hot water quantity m2=m1, (T1 ' -T1)/(T2-T1 ') with temperature T2, wherein M1 is the mass of the remaining water in the temperature control chamber, the signal is provided to the controller by the pressure sensor B, and M2 is the mass of the hot water in the hot water pumping area of the controller, and the signal is provided to the controller 2 by the pressure sensor a;
if T1' is less than T1, the controller extracts the water inflow M2' =m1 (T1-T1 ')/(T1 ' -T3) of the water inlet pipe B with temperature T3, where M1 is the mass of the remaining water in the temperature control chamber, a signal is provided to the controller by the pressure sensor B, M2' is the mass of the water inlet pipe B controlled by the controller, the extraction time is calculated by the cross section of the water inlet pipe B and the density of the water, and the mass of the water inlet is determined.
Further, if the actual temperature value does not reach the set temperature value after the water inflow is performed according to the theoretical inflow, the water inflow is mixed again according to the actual temperature of the current temperature control chamber, and the temperature adjustment stage step is repeated until the actual temperature and the set temperature are within a tolerance of +/-0.5 ℃. So as to avoid that the output temperature generated by the fact that the actual temperature value cannot reach the set temperature value due to the deviation of the theoretical calculation value caused by the interference of the external environment does not reach the standard.
Further, the controller records the use time of each temperature set value, and the temperature set default value is the temperature set value under the maximum duration, so that the time for regulating and controlling the temperature by a user is reduced.
Compared with the prior art, the application has the following beneficial effects: the application relates to a cold and hot mixed constant temperature gas water heater and a control method thereof, wherein the control method comprises the following steps:
1. the gas water heating and temperature control are separately arranged, so that the constant water outlet temperature can be obtained, and the gas can be saved. The user changes the set temperature value midway, can mix overheated water in the hot water district with the colder water of control by temperature change room and obtain invariable set water temperature or mix the overheated water of control by temperature change room with inlet tube B's cold water and obtain invariable set water temperature, can not receive remaining high temperature and low temperature influence, when the water heater stops using midway, the control by temperature change room still remains a large amount of reserve hot water, uses the water heater once more, can not appear the condition that the water temperature suddenly drops and suddenly heats, has improved user's use travelling comfort.
2. The water inflow of the water inlet pipe and the water boiling temperature of the burner are accurately controlled by the controller, after the set temperature value is changed in the using period, automatic constant-temperature water outlet is realized according to the accurate mixed water amount of different water temperatures, the actual temperature is fed back to the controller by the thermometer, the temperature can be further regulated and controlled by the auxiliary controller, the water outlet temperature is stabilized within the allowable tolerance range of the set temperature value, the actual output water temperature is ensured to be consistent with the set water temperature, and the water outlet water temperature is not inconsistent with the set temperature value due to the influence of external environment.
3. The display end is combined with the hot water component actually used by the user, so that the water heater is convenient for the user to use, the controller controls the water temperature to have a memory function, the default temperature value accords with the set temperature value of the user to the greatest extent, and the temperature does not need to be reset every time the water heater is turned on.
4. The unused residual hot water in the water heater is re-warmed according to the actual temperature value of the water heater and the quality of the residual water when the water heater is used next time as calculation references, so that the unused residual hot water is recycled, and water resources are saved.
Drawings
The accompanying drawings are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate the application and together with the embodiments of the application, serve to explain the application. In the drawings:
FIG. 1 is a three-dimensional schematic diagram of a cold and hot mixed constant temperature gas water heater of the application;
FIG. 2 is a control flow chart of a control method of the cold and hot mixed constant temperature gas water heater;
FIG. 3 is a flow chart of a control method for resetting a set temperature in the middle of a cold and hot mixed constant temperature gas water heater;
in the figure: 1. the water heating area comprises a hot water area, 101, pressure sensors A and 2, a burner, 201, a water pipe, 3, a water inlet pipe A and 301, flow meters A and 4, an air inlet pipe, 401, an air inlet valve, 5, a water outlet pipe, 501, a water outlet server, 6, thermometers A and 7, a temperature control chamber, 701, a pressure sensor B and 702, thermometers B and 8, a partition plate, 9, a water inlet pipe B and 901, a flow meter B and 10, a water pump, 11, a water pumping pipe, 12, a water inlet server, 13 and a thermometer C.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application.
Referring to fig. 1, the present application provides the following technical solutions: the application discloses a cold and hot mixed constant temperature gas water heater which comprises a hot water area 1, a combustor 2, a water inlet pipe A3, an air inlet pipe 4, a water outlet pipe 5, a thermometer A6, a controller and a circuit system. The burner 2 is arranged at the lower end of the hot water area 1 and is connected with the hot water area 1 through a water pipe 201, an inlet of the air inlet pipe 4 is connected with a fuel gas and air inlet valve 401, an outlet of the air inlet pipe is connected with the burner 2, the water inlet pipe A3 is connected onto the burner 2, the burner 2 is provided with a water outlet, and heated hot water enters the hot water area 1 through the water outlet for storage. The temperature detector A6 is arranged on the side wall of the hot water area 1 and is close to the hot water area 1 and used for detecting the water outlet temperature of the hot water area 1 and feeding back the water outlet temperature to the controller, and the temperature detector A6 and the controller are connected with a circuit system. The water heater also comprises a temperature control chamber 7, a partition plate 8, a water inlet pipe B9, a water pump 10 and a water pumping pipe 11, wherein the temperature control chamber 7 is arranged side by side with the hot water area 1 and is connected with the hot water area 1 through the water pumping pipe 11, and is used for controlling water temperature and is output by the water outlet pipe 5, and the hot water area 1 and the temperature control chamber 7 are hollow cylinders. The partition plate 8 is arranged between the hot water area 1 and the temperature control chamber 7 and is used for separating the hot water area 1 from the temperature control chamber 7, so that the hot water area 1 and the temperature control chamber 7 respectively and independently operate and mutual interference of temperature difference is prevented. The water pumping pipe 11 passes through the division plate 8, the inlet extends to the bottom of the hot water area 1 and is close to the water outlet, the outlet is connected with the water pumping device 10, the water pumping device 10 is arranged at one side of the temperature control chamber 7 close to the hot water area 1 and is used for pumping water in the hot water area 1 to the temperature control chamber 7 through the water pumping pipe 11, the water inlet pipe B9 is arranged at the upper end of the temperature control chamber 7 and is used for adding cold water for cooling for temperature adjustment of the temperature control chamber 7.
The display device also comprises a display end, wherein the display end comprises a heating button, a cooling button, a power button, a set temperature value and an actual temperature value, and the display end is electrically connected with the circuit system. The display end is arranged on the front surface of the water heater, and a user can set a temperature value according to own needs and can change the set temperature value at any time.
The bottom of the hot water area 1 is provided with a pressure sensor A101, the bottom of the temperature control chamber 7 is provided with a pressure sensor B701, and the quality of the residual water of the hot water area 1 and the temperature control chamber 7 can be obtained according to the cross-sectional areas of the hot water area 1 and the temperature control chamber 7 and the densities of the water through the pressure sensor A101 and the pressure sensor B701 and the signal numerical values are fed back to the controller. The side wall of the temperature control chamber 7 is also provided with a thermometer B702 close to the bottom, which is used for detecting the actual temperature in the temperature control chamber 7 and feeding back the actual temperature value to the controller. The pressure sensor A101, the pressure sensor B701 and the thermometer B702 are respectively and electrically connected with the circuit system, and signals are transmitted to the controller.
The water inlet pipe A3 is connected with the water inlet pipe B9 at the water inlet server 12, the water inlet server 12 is used for controlling the water inlet flow of the water inlet pipe A3 and the water inlet pipe B9 respectively, the water inlet server 12 is electrically connected with a circuit system and is provided with a thermometer C13, and the thermometer C13 is used for detecting the water temperature of the water inlet pipe A3 and the water inlet pipe B9. The outlet of the joint of the water inlet pipe A3 and the water inlet pipe B9 at the water inlet server 12 is provided with a flowmeter A301A and a flowmeter B901 respectively, and the flowmeter A301A and the flowmeter B901 are controlled by a controller and are used for precisely controlling the specific water inlet amount of the water inlet pipe A3 and the water inlet pipe B9, and the specific mass value of water inlet is controlled by the cross-sectional area of the water inlet pipe A3 and the water inlet pipe B9 and the density of water. The water inlet pipe A3, the water inlet pipe B9 and the air inlet pipe 4 are standard quarter pipes, and the nominal diameter is 15 mm. The water outlet pipe 5 is provided with a water outlet server 501 for controlling the water outlet flow of the constant temperature hot water.
The stirring device is arranged at the bottom of the temperature control chamber 7 and comprises a motor, a rotating shaft and a plurality of stirring blades, wherein the motor is electrically connected with the circuit system and is arranged at the bottom of the temperature control chamber 7, the rotating shaft is connected with the motor, and the stirring blades are uniformly distributed on the rotating shaft. The stirring device is used for quickly mixing water with different temperatures in the temperature control device and is controlled by the controller. When two kinds of water with different water temperatures enter the temperature control chamber 7, the controller controls the stirring device to be started, otherwise, the controller controls the stirring device to be closed.
The burner 2 further comprises a smoke exhauster and a smoke exhaust pipeline, the water is boiled only in the hot water area 1 by using the fuel gas, the combustion is stable, and a large amount of hot water is burned in the hot water area 1 for standby at a time, so that the fuel gas can be saved. And the heat insulation layers are sleeved on the peripheries of the hot water area 1 and the temperature control chamber 7.
Working principle:
1. the user turns on the water heater through display terminal power button to through temperature increasing button, cooling button settlement temperature value, the controller is according to the inlet tube A3 of settlement temperature value control water inlet servo 12 switch-on, inlet valve 401 switch-on gas, combustor 2 operation heats the temperature to settlement temperature value, detect actual temperature value through thermometer A6, when actual temperature value reaches settlement temperature value, combustor 2 stable heating and with hot water storage in hot water district 1, the controller simultaneously controls water pumper 10 and draws hot water in the hot water district 1 to the control by temperature change district through water pumping pipe 11, the control by temperature change district is with hot water through outlet pipe 5 delivery.
2. The user adjusts the set temperature value during use of the water heater:
A. if the set temperature value is increased, the controller controls the water pump 10 to pump all the water with the original set temperature value left in the combustion chamber to the temperature control chamber 7, the burner 2 heats the water to 10 ℃ higher than the set temperature value, the water is conveyed to the temperature control chamber to be mixed with the residual water, and meanwhile, the stirring device is controlled to operate until the temperature reaches the new set temperature value, and the stirring device stops operating. The amount of hot water needed to be heated by the burner 2 is calculated according to the residual original hot water amount, the temperature and the new set temperature, the calculated data of the controller is based on the actual temperature value fed back by the thermometer B702, if the added calculated amount does not enable the actual temperature to reach the new set temperature, the amount of the hot water needed to be heated by the burner 2 can be repeatedly calculated until the actual temperature value of the thermometer B702 is consistent with the set temperature value, then the burner 2 heats the water to the new set temperature value, and the water pump 10 outputs the hot water through the water outlet pipe 5 through the water pumping pipe 11.
B. If the set temperature value is reduced, the controller controls the water pump 10 to pump all the residual original set temperature of the combustion chamber to the temperature control chamber 7, then controls the water inlet pipe B9 to mix the water inlet and the residual water, and simultaneously controls the stirring device to operate, and the stirring device stops working after the actual temperature value is reduced to the newly set temperature value. The controller controls the water inlet amount of the water inlet pipe B9 according to the temperature of the water inlet pipe B9, the residual quantity of the hot water in the temperature control chamber 7 and the temperature. The burner 2 then heats the water to a new set temperature value and the water pump 10 outputs hot water through the water outlet pipe 5 via the water suction pipe 11.
3. If the residual water quantity exists in the temperature control chamber 7 before the water heating stage, and the temperature value is T (the residual water quantity exists in the water heater before the user uses the water heater), the controller directly enters the temperature adjusting stage according to the residual water quantity and the temperature value after the user starts the water heater and sets the set temperature value T1.
Referring to fig. 2-3, the control method of the cold and hot mixed constant temperature gas water heater comprises the following steps:
and (3) water boiling stage:
the user turns on the water heater and sets a set temperature value T1,
the controller controls the water inlet pipe A3 to feed water, the gas is introduced into the gas inlet pipe 4, the burner 2 heats the water temperature to a set temperature value T1 and then the water is conveyed to the hot water area 1 through the water conveying pipe 201, the water pump 10 extracts the hot water in the hot water area 1 to the temperature control chamber 7 through the water pumping pipe 11, and the hot water flows out through the water outlet pipe 5;
and (3) temperature adjustment:
the user resets the temperature value T1' during the use of the water heater, and the controller controls the water pump 10 to pump all the remaining hot water in the hot water area 1 to the temperature control chamber 7.
If T1' is greater than T1, the controller controls the water inlet pipe A3 to feed water, the gas is introduced into the gas inlet pipe 4, the burner 2 heats the water temperature to T2 which is greater than the set temperature value T1', the water is conveyed to the hot water area 1, the water pump 10 pumps the hot water with the temperature of T2 in the hot water area 1 to the temperature control chamber 7 through the water pumping pipe 11 and mixes the hot water with the original temperature T1 in the temperature control chamber 7 until the temperature reaches T1', the pumping amount is calculated according to the residual hot water amount of the temperature control chamber 7 and the temperatures T1, T1' and T2, the water outlet pipe 5 outputs water, and then the controller controls the burner 2 to heat the water to T1', and the water is conveyed to the temperature control chamber 7 through the water pump 10 to be output.
If T1 'is smaller than T1, the controller controls the water inlet pipe B9 to be fed, and the water is mixed with the original temperature T1 in the temperature control chamber 7 until the temperature detector B702 reaches T1', then the water inlet pipe B9 stops feeding water, the water outlet pipe 5 discharges water, the water inlet amount of the water inlet pipe B9 is calculated according to the water inlet temperature T3 of the water inlet pipe B9, the water temperature T1 of the residual water amount, the set temperature value T1 'and the quality of the residual water amount, and then the controller controls the combustor 2 to heat the water to T1', and the water is conveyed to the temperature control chamber 7 through the water pump 10.
Wherein the water heating period is 10-15 seconds when the burner 2 heats water. The controller controls the remaining amount of water available in the temperature controlled chamber 7 to be at most 50% of the volume of the temperature controlled chamber 7.
If the residual water quantity exists in the temperature control chamber 7 in the water heating stage and the temperature value is T, a user starts the water heater, sets a set temperature value T1, and then the controller directly enters the temperature adjusting stage according to the residual water quantity and the temperature value as references. Every time the water heater temperature control chamber 7 and the hot water area 1 are used, partial water cannot be left, the water temperature of the residual water is generally smaller than a set temperature value, so that the residual water is required to be mixed with hot water again to obtain the set temperature value, and the residual water is used to save water resources.
If the controller calculates that the sum of the residual water quantity in the temperature control chamber 7 and the water inflow required to be mixed is larger than the volume of the temperature control chamber 7 in the temperature adjustment stage, the controller firstly discharges the residual water quantity of the temperature control chamber 7 according to the maximum volume of the temperature control chamber 7 and then executes the water quantity mixing step, namely, the sum of the residual water quantity of the temperature control chamber 7 and the water inflow required to be mixed is smaller than or equal to the volume of the temperature controller. The excess water amount firstly discharged is wasted, the volume of the temperature control chamber 7 is larger than the volume of the combustion chamber in order to avoid wasting water resources, and the hot water amount of the constant temperature set value stored in each use is not larger than the volume of the temperature control chamber 7.
The method for controlling the temperature of the temperature control chamber 7 to reach T1' by the temperature control stage controller comprises the following steps:
if T1' is greater than T1, the controller controls the water pump 10 to pump a hot water quantity m2=m1 (T1 ' -T1)/(T2-T1 ') with temperature T2, wherein M1 is the mass of the remaining water in the temperature control chamber 7, the signal is provided to the controller by the pressure sensor B701, and M2 is the mass of the hot water in the hot water pumping area 1 by the controller, and the signal is provided to the controller 2 by the pressure sensor a 101;
if T1' is less than T1, the controller extracts the water inflow M2' =m1 (T1-T1 ')/(T1 ' -T3) of the water inlet pipe B9 with temperature T3, where M1 is the mass of the remaining water in the temperature control chamber 7, a signal is provided to the controller by the pressure sensor B701, M2' is the mass of the water inlet pipe B9 controlled by the controller, the extraction time is calculated by the cross section of the water inlet pipe B9 and the density of the water, and the mass of the water inlet is determined.
If the actual temperature does not reach the set temperature after the water is fed according to the theoretical water inflow, the water is fed again according to the actual temperature T of the current temperature control chamber 7, and the steps are repeated until the actual temperature and the set temperature are within the tolerance of +/-0.5 ℃. So as to avoid that the output temperature generated by the fact that the actual temperature value cannot reach the set temperature value due to the deviation of the theoretical calculation value caused by the interference of the external environment does not reach the standard.
The controller records the use time of each temperature set value, and the temperature set default value is the temperature set value under the maximum duration, so that the time for regulating and controlling the temperature by a user is reduced.
It should be noted that in this document, relational terms such as a and B, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present application, and the present application is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present application has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (5)
1. A control method of a cold and hot mixed constant temperature gas water heater is characterized in that:
the cold-hot mixed constant temperature gas water heater comprises a hot water area (1), a combustor (2), a water inlet pipe A (3), an air inlet pipe (4), a water outlet pipe (5), a thermometer A (6), a controller and a circuit system, wherein the combustor (2) is arranged at the lower end of the hot water area and is connected with the hot water area (1) through a water pipe (201), an inlet of the air inlet pipe (4) is connected with a gas and air inlet valve (401) and an outlet is connected with the combustor (2), the water inlet pipe A (3) is arranged at the bottom of the combustor (2), the thermometer A (6) is arranged on the side wall of the hot water area (1), and the thermometer A (6), the controller and the circuit system are electrically connected, and the cold-hot mixed constant temperature gas water heater is characterized in that: the cold and hot mixed constant temperature gas water heater further comprises a temperature control chamber (7), a partition plate (8), a water inlet pipe B (9), a water pump (10) and a water suction pipe (11), wherein the temperature control chamber (7) is arranged side by side left and right with the hot water area (1) and is connected with the hot water area (7) through the water suction pipe (11), the partition plate (8) is arranged between the hot water area (1) and the temperature control chamber (7), the water suction pipe (11) penetrates through an inlet of the partition plate (8) to extend to the bottom of the hot water area (1), an outlet of the partition plate is connected with the water pump (10), the water pump (10) is arranged on one side of the temperature control chamber (7) and is used for pumping water in the hot water area (1) to the temperature control chamber (7) through the water suction pipe (11), and the water inlet pipe B (9) is arranged at the upper end of the side wall of the temperature control chamber (7);
the bottom of the hot water area (1) is provided with a pressure sensor A (101) for providing a residual water quantity signal of the hot water area (1), the bottom of the temperature control chamber (7) is provided with a pressure sensor B (701), the side wall of the temperature control chamber is close to the bottom and provided with a thermometer B (702) for providing a residual water quantity signal and a water temperature signal of the temperature control chamber (7), and the pressure sensor A (101), the pressure sensor B (701) and the thermometer B (702) are respectively and electrically connected with a circuit system;
the water inlet pipe A (3) is connected with the water inlet pipe B (9) at a water inlet server (12), the water inlet server (12) is used for controlling the water inlet flow of the water inlet pipe A (3) and the water inlet pipe B (9) respectively, the water inlet server (12) is electrically connected with a circuit system and is provided with a thermometer C (13), and a flowmeter A (301) and a flowmeter B (901) are arranged at the outlet of the connection part of the water inlet server (12) of the water inlet pipe A (3) and the water inlet pipe B (9);
the cold and hot mixed constant temperature gas water heater further comprises a display end, wherein the display end comprises a temperature increasing button, a temperature reducing button, a power button, a set temperature value and an actual temperature value, and the display end is electrically connected with the circuit system;
the bottom of the temperature control chamber (7) is provided with a stirring device, the stirring device comprises a motor, a rotating shaft and a plurality of stirring blades, the motor is electrically connected with the circuit system and is arranged at the bottom of the temperature control chamber (7), the rotating shaft is connected with the motor, and the stirring blades are uniformly distributed on the rotating shaft;
the control method of the cold-hot mixed constant temperature gas water heater comprises the following steps:
and (3) water boiling stage:
the user turns on the water heater and sets a set temperature value T1,
the controller controls the water inlet pipe A (3) to feed water, the gas inlet pipe (4) is communicated with gas, the burner (2) heats the water temperature to a set temperature value T1 and then conveys the water to the hot water area (1) through the water conveying pipe (201), the water pump (10) extracts hot water in the hot water area (1) to the temperature control chamber (7) through the water pumping pipe (11), and the hot water flows out through the water outlet pipe (5);
and (3) temperature adjustment:
the user resets the temperature value T1' in the process of using the water heater, and the controller controls the water pump (10) to pump all the residual hot water in the hot water area (1) to the temperature control chamber (7);
if T1' is larger than T1, the controller controls the water inlet pipe A (3) to feed water, the air inlet pipe (4) is communicated with fuel gas, the heating water temperature of the burner (2) reaches T2 which is larger than a set temperature value T1', the water pump (10) pumps hot water with the temperature of T2 in the hot water area (1) to the temperature control chamber (7) through the water pumping pipe (11) and mixes the hot water with the original temperature T1 in the temperature control chamber (7) until the temperature reaches T1', the water outlet pipe (5) outputs water, the pumping amount is calculated according to the residual hot water amount and the temperature T1 of the temperature control chamber (7), the set temperature T1' and the temperature T2 of the hot water area (1), and then the controller controls the burner (2) to heat the water to T1', and the hot water is conveyed to the temperature control chamber (7) through the water pump (10) to be output;
if T1 'is less than T1, the controller controls the water inlet pipe B (9) to be fed and mixed with the original temperature T1 in the temperature control chamber (7) until the temperature meter B reaches T1', then the water inlet pipe B stops feeding water, the water outlet pipe (5) is discharged, the water inlet amount of the water inlet pipe B is calculated according to the water inlet temperature T3 of the water inlet pipe B, the residual hot water temperature T1, the set temperature T1 'and the residual water amount, and then the controller controls the combustor (2) to heat the water to T1', and the water is conveyed to the temperature control chamber (7) for output through the water pump (10).
2. The control method of the cold and hot mixed constant temperature gas water heater according to claim 1, wherein the control method comprises the following steps: if the residual water quantity exists in the temperature control chamber (7) before the water heating stage, and the temperature value is T, a user starts the water heater, sets a set temperature value T1, and then the controller directly enters the temperature adjustment stage according to the residual water quantity and the actual temperature value of the residual water quantity as a reference.
3. The control method of the cold and hot mixed constant temperature gas water heater according to claim 2, wherein the control method comprises the following steps: if the controller calculates that the sum of the residual water quantity in the temperature control chamber (7) and the water inflow required to be mixed is larger than the volume of Wen Kongshi (7) in the temperature control stage, the controller firstly discharges the residual water quantity in the temperature control chamber (7) according to the maximum volume of the temperature control chamber (7), and then executes the step of the temperature control stage.
4. A control method of a cold and hot mixed constant temperature gas water heater according to claim 3, wherein: the calculation method for controlling the water temperature mixing temperature of the temperature control chamber (7) to reach T1' by the temperature adjustment stage controller comprises the following steps:
t1' is larger than T1, the controller controls the water pump (10) to pump the hot water with the temperature of T2, wherein M1 is the mass of the residual water in the temperature control chamber (7), M2 is the mass of the hot water in the hot water pumping area (1) and is provided with a signal through the pressure sensor B (701), and M2 is the mass of the hot water in the hot water pumping area (1) and is provided with a signal through the pressure sensor A (101);
and (3) extracting the water inflow M2 '=M1 (T1-T1')/(T1 '-T3) of the water inlet pipe B (9) with the temperature of T3 by the controller, wherein M1 is the mass of the residual water in the temperature control chamber (7), providing a signal to the controller through the pressure sensor B (701), controlling the water inflow mass of the water inlet pipe B (9) by the controller, calculating the extraction time through the cross section of the water inlet pipe B (9) and the water density, and determining the water inflow mass by the controller, wherein T1' is smaller than T1.
5. The control method of the cold and hot mixed constant temperature gas water heater according to claim 4, wherein the control method comprises the following steps: the controller records the use time of each temperature set value, and the temperature set default value is the temperature set value under the maximum duration.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602306Y (en) * | 2003-02-17 | 2004-02-04 | 李鹏 | Hot-water temperature regulating device with a high temperature water tank |
| AU2007332141A1 (en) * | 2006-12-12 | 2008-06-19 | Rheem Australia Pty Limited | A controllable water heater |
| CN203240763U (en) * | 2013-04-25 | 2013-10-16 | 王东 | Water volume adjusting device of household gas water heater |
| CN103604208A (en) * | 2008-12-09 | 2014-02-26 | 达克斯制造有限公司 | A water heating system and a method of operating same |
| CN203869311U (en) * | 2014-04-21 | 2014-10-08 | 东莞市金拓实业有限公司 | An air energy water heater with improved waterway system |
| CN104807174A (en) * | 2015-05-12 | 2015-07-29 | 王永妍 | Separating heat storage type cold water heater |
| CN205481742U (en) * | 2016-03-31 | 2016-08-17 | 深圳市新环能科技有限公司 | Air source heat pump unit and couple constant temperature and isopiestic pressure hot water supply system of water tanks combination |
| CN107084534A (en) * | 2017-05-09 | 2017-08-22 | 广东万家乐燃气具有限公司 | A kind of gas instantaneous water heater with automatic water mixing device |
| JP2020034225A (en) * | 2018-08-30 | 2020-03-05 | リンナイ株式会社 | Heat exchange device |
| CN211261248U (en) * | 2019-12-10 | 2020-08-14 | 中山市乐喜电子科技有限公司 | a water heater system |
| CN212227411U (en) * | 2020-06-04 | 2020-12-25 | 宁波方太厨具有限公司 | Constant temperature system of gas water heater |
| CN212987624U (en) * | 2020-05-26 | 2021-04-16 | 宁波方太厨具有限公司 | Constant-temperature water supply system |
-
2021
- 2021-09-06 CN CN202111037956.5A patent/CN113883715B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2602306Y (en) * | 2003-02-17 | 2004-02-04 | 李鹏 | Hot-water temperature regulating device with a high temperature water tank |
| AU2007332141A1 (en) * | 2006-12-12 | 2008-06-19 | Rheem Australia Pty Limited | A controllable water heater |
| CN103604208A (en) * | 2008-12-09 | 2014-02-26 | 达克斯制造有限公司 | A water heating system and a method of operating same |
| CN203240763U (en) * | 2013-04-25 | 2013-10-16 | 王东 | Water volume adjusting device of household gas water heater |
| CN203869311U (en) * | 2014-04-21 | 2014-10-08 | 东莞市金拓实业有限公司 | An air energy water heater with improved waterway system |
| CN104807174A (en) * | 2015-05-12 | 2015-07-29 | 王永妍 | Separating heat storage type cold water heater |
| CN205481742U (en) * | 2016-03-31 | 2016-08-17 | 深圳市新环能科技有限公司 | Air source heat pump unit and couple constant temperature and isopiestic pressure hot water supply system of water tanks combination |
| CN107084534A (en) * | 2017-05-09 | 2017-08-22 | 广东万家乐燃气具有限公司 | A kind of gas instantaneous water heater with automatic water mixing device |
| JP2020034225A (en) * | 2018-08-30 | 2020-03-05 | リンナイ株式会社 | Heat exchange device |
| CN211261248U (en) * | 2019-12-10 | 2020-08-14 | 中山市乐喜电子科技有限公司 | a water heater system |
| CN212987624U (en) * | 2020-05-26 | 2021-04-16 | 宁波方太厨具有限公司 | Constant-temperature water supply system |
| CN212227411U (en) * | 2020-06-04 | 2020-12-25 | 宁波方太厨具有限公司 | Constant temperature system of gas water heater |
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