CN113294917B - gas water heater - Google Patents
gas water heater Download PDFInfo
- Publication number
- CN113294917B CN113294917B CN202110607479.5A CN202110607479A CN113294917B CN 113294917 B CN113294917 B CN 113294917B CN 202110607479 A CN202110607479 A CN 202110607479A CN 113294917 B CN113294917 B CN 113294917B
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- water
- heating
- pipe
- heating container
- gas
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 347
- 238000010438 heat treatment Methods 0.000 claims abstract description 144
- 238000005485 electric heating Methods 0.000 claims abstract description 80
- 239000008236 heating water Substances 0.000 claims abstract description 19
- 238000009434 installation Methods 0.000 claims abstract description 5
- 230000002829 reductive effect Effects 0.000 abstract description 17
- 239000007789 gas Substances 0.000 description 70
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 12
- 239000008187 granular material Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000004321 preservation Methods 0.000 description 4
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002035 prolonged effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 230000005764 inhibitory process Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- HIVGXUNKSAJJDN-UHFFFAOYSA-N [Si].[P] Chemical compound [Si].[P] HIVGXUNKSAJJDN-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000011236 particulate material Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011946 reduction process Methods 0.000 description 1
- 239000002455 scale inhibitor Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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]
Abstract
The application discloses a gas water heater. The gas water heater includes: the shell is internally provided with an installation space, and the shell is also provided with a water inlet pipe and a water outlet pipe which extend to the outside; a burner for burning a combustible gas; the fan is used for conveying air to the burner; the heat exchanger is used for supplying water to flow and heating water by utilizing heat generated by the burner; the electric heating module comprises a heating container and a thick film, an electric heating runner is formed in the heating container, and the thick film is wrapped outside the heating container; the water inlet pipe and the water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path, and the heating container is connected in series in the heating water flow path; the thick film is used for heating water flowing through the heating container by electrifying after the gas water heater is turned off and restarted. The auxiliary heating is performed through the electric heating module, so that the fluctuation of the outlet water temperature is reduced, and the use safety and the user experience of the gas water heater are improved.
Description
Technical Field
The application belongs to the technical field of household appliances, and particularly relates to a gas water heater.
Background
At present, a gas water heater is a household appliance commonly used in daily life of people, and the gas water heater generally comprises a shell, a burner, a heat exchanger and other parts arranged in the shell, wherein a water inlet pipe and a water outlet pipe arranged on the shell are connected with the heat exchanger, and hot water can be output from a water outlet pipe after cold water entering from a water inlet pipe is heated by the heat exchanger.
In the in-service use process of the gas water heater, when the gas water heater is restarted, a certain amount of hot water still exists in the heat exchanger, the temperature of the water discharged by the hot water is easily increased after the hot water is reheated, the water temperature fluctuation is further large, the possibility of scalding a user exists, and the use safety and the user experience of the gas water heater are poor.
In view of this, how to design a technology for reducing outlet water temperature fluctuation so as to improve the use safety and user experience of the gas water heater is a technical problem to be solved by the application.
Disclosure of Invention
The application provides a gas water heater, which realizes auxiliary heating through an electric heating module so as to reduce outlet water temperature fluctuation and further improve the use safety and user experience of the gas water heater.
In order to achieve the technical purpose, the application is realized by adopting the following technical scheme:
in one aspect, the present application provides a gas water heater comprising:
the shell is internally provided with an installation space, and the shell is also provided with a water inlet pipe and a water outlet pipe which extend to the outside;
a burner for combusting a combustible gas;
a fan for delivering air to the burner;
a heat exchanger for supplying water to flow and heating the water using heat generated from the burner;
the electric heating module comprises a heating container and a thick film, wherein an electric heating flow channel is formed in the heating container, and the thick film is wrapped outside the heating container;
the water inlet pipe and the water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path, and the heating container is connected in series in the heating water flow path; the thick film is used for heating water flowing through the heating container by electrifying after the gas water heater is turned off and restarted.
In an embodiment of the application, the heating container is provided with a first water pipe and a second water pipe, the first water pipe and the second water pipe are arranged at intervals, and the thick film is positioned between the first water pipe and the second water pipe.
In an embodiment of the application, an electric heating tube is further disposed in the heating container.
In one embodiment of the present application, the portion of the electric heating tube located in the heating container forms a spiral tube section.
In an embodiment of the present application, a water outlet direction of the first water pipe is towards a spiral starting portion of the spiral pipe section.
In one embodiment of the present application, the intervals between the spiral pipe sections form a guiding space for guiding the spiral flow of the water flow.
In an embodiment of the application, the heating container comprises a heating cylinder and two end covers, the end covers are connected to corresponding ports of the heating cylinder in a sealing way, and the electric heating pipe is arranged on one of the end covers.
In an embodiment of the application, the connection terminal of the electric heating pipe extends to the outer side of the corresponding end cover, and a temperature controller is further arranged on the end cover provided with the electric heating pipe, and the temperature controller is electrically connected with the connection terminal of the electric heating component.
In one embodiment of the present application, the heating container includes:
the first pipe body is provided with a water inlet;
the water outlet is formed in one end part of the second pipe body, and the auxiliary inlet is formed in the other end part of the second pipe body; the second pipe body is inserted into the first pipe body in a sealing mode, the auxiliary inlet is located in the first pipe body, and the thick film is wrapped on the first pipe body and used for heating water in the first pipe body.
In an embodiment of the application, an insulating layer is further arranged outside the heating container, and the thick film is wrapped by the insulating layer.
Compared with the prior art, the application has the advantages and positive effects that:
through in the gas heater operation in-process, when gas heater short time closes water and starts again, can heat flowing water through electric heating module, the hot water that has certain temperature that stores in the heat exchanger enters into electric heating module's heating container and carries out auxiliary heating through the thick film in order to reach the play water temperature output of settlement, because the regulation that heating power of thick film can refine more, in order to satisfy the heating requirement of reserving hot water in the heat exchanger, like this, alright avoid the condition emergence that water temperature is too high appears in the existence of heating the heat exchanger through starting the combustor, realize carrying out auxiliary heating through electric heating module, in order to reduce out water temperature fluctuation, and then improve gas heater's safety in utilization and user experience nature.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art.
FIG. 1 is a schematic diagram of a gas water heater according to an embodiment of the present application;
FIG. 2 is a schematic diagram of an electric heating module in an embodiment of the gas water heater according to the present application;
FIG. 3 is a cross-sectional view of the electric heating module of FIG. 2;
FIG. 4 is a partial cross-sectional view of the electric heating module of FIG. 2;
FIG. 5 is a second schematic diagram of an electric heating module in an embodiment of the gas water heater according to the present application;
FIG. 6 is an exploded view of the electric heating module of FIG. 5;
FIG. 7 is a cross-sectional view of the electric heating module of FIG. 5;
FIG. 8 is a flowchart of a control method of a gas water heater according to an embodiment of the present application;
FIG. 9 is a flow chart of a second embodiment of a control method of the gas water heater of the present application;
reference numerals:
a housing 100;
a water inlet pipe 101 and a water outlet pipe 102;
a burner 200;
a heat exchanger 300;
an electric heating module 400;
heating the container 11;
a first connection port 111, a second connection port 112, an end cover 113, a first water pipe 114, a second water pipe 115 and a heating cylinder 116;
an electric heating tube 12;
a first thick film 13;
a temperature controller 14;
a second thick film 21;
an outer sleeve 22, a water inlet 221;
an inner cannula 23, a water outlet 231, an auxiliary inlet 232;
a water treatment member 24, a granular material 241 and a shielding net 242;
a spiral plate 25;
a thermal insulation shell 26;
a temperature detector 27;
a flange 28;
and a control device 500.
Description of the embodiments
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of 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, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that, in the description of the present application, terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, which are merely for convenience of description, and do not indicate or imply that the apparatus or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the present application, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
The following disclosure provides many different embodiments, or examples, for implementing different features of the application. In order to simplify the present disclosure, components and arrangements of specific examples are described below. They are, of course, merely examples and are not intended to limit the application. Furthermore, the present application may repeat reference numerals and/or letters in the various examples, which are for the purpose of brevity and clarity, and which do not themselves indicate the relationship between the various embodiments and/or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.
The gas water heater adopts gas as main energy material, and the high temperature heat generated by combustion of the gas is transferred to cold water flowing through a heat exchanger to achieve the purpose of preparing hot water.
Gas water heaters typically include a housing, and a burner, heat exchanger, fan, and fan housing disposed within the housing.
The gas is conveyed to the burner, and is ignited by the ignition device, so that the burner combusts the conveyed gas, and heat is further generated.
The heat exchanger is internally provided with a heat exchange tube, one end of the heat exchange tube is communicated with a water supply pipeline, and the other end of the heat exchange tube is communicated with a shower head or a tap.
The heat generated by the combustion of the fuel gas by the burner is used for heating the heat exchange tube so as to raise the water temperature in the heat exchange tube to form hot water.
When the gas water heater works, cold water provided by the water supply pipeline flows into the heat exchange pipe, is heated into hot water by the heating source generated by the burner, and flows out of the shower head or the water tap through the hot water valve for users to use.
Meanwhile, in the operation of the gas water heater, the fans are electrified and run simultaneously, and under the action of the fans, the flue gas generated by the burner is discharged outdoors.
In a first embodiment, as shown in fig. 1, the present application provides a gas water heater. The gas water heater comprises a shell 100, a burner 200, a burner 300, a control device 500, a water inlet pipe 101, a water outlet pipe 102 and other components.
The control device 500 comprises a processor, a memory and a control program of the gas water heater which is stored on the memory and can be executed by the processor.
The burner 200 is capable of burning fuel gas to heat water flowing in the burner 300, and the water inlet pipe 101 and the water outlet pipe 102 are respectively connected with the heat exchanger 200 to form a heating water flow path, the electric heating module 400 is connected in series in the heating water flow path, and the electric heating module 400 performs auxiliary electric heating on the water flowing therethrough by using the principle of electric heating.
The water inlet pipe 101 is connected to a water supply pipe in the user's home to introduce cold water, and the water outlet pipe 102 is connected to a water terminal (hot water tap) in the user's home to output hot water. The specific structural configuration of the gas water heater is not limited and described in detail herein.
Wherein, in order to realize the electric auxiliary heating, the gas water heater also comprises an electric heating module 400, the electric heating module 400 comprises a heating container and a thick film, an electric heating runner is formed in the heating container, and the thick film is wrapped outside the heating container; the water inlet pipe and the water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path, and the heating container is connected in series in the heating water flow path; the thick film is used for heating water flowing through the heating container by electrifying after the gas water heater is turned off and restarted.
Specifically, during the assembly process, the heating container in the electric heating module 400 may be connected in series in the heating water flow path formed by the water inlet pipe, the heat exchanger and the water outlet pipe, for example: an electric heating module 400 is connected between the water outlet pipe and the heat exchanger.
In actual use, when the user starts the water again after turning off the water during the hot water use, the user is easily scalded due to the fact that the high temperature water is easily output due to the limitation of the minimum heating power of the burner 200. For this, the electric heating module 400 may be disposed between the water outlet pipe 102 and the burner 300, and when the gas water heater is turned on again after water is turned off, the gas water heater performs the steps of: firstly, starting an electric heating module 400, and heating water flowing through the electric heating module 400; after the hot water stored in the burner 300 flows out, the burner 200 is restarted and the electric heating module 400 is turned off.
Specifically, since the water temperature of the stored water in the burner 300 is high when the water is restarted, and is limited by the minimum heating power of the burner 200, the temperature of the discharged water may be excessively high if the water in the burner 300 is directly heated. For this reason, when water is restarted, the water flowing out of the burner 300 is first heated by the electric heating module 400 to reduce the fluctuation of the outlet water temperature of the outlet pipe 102.
After turning off the water again, the hot water stored in the burner 300 is outputted after the water is turned on again for a certain time, so that cold water is again flowed into the burner 300. At this time, the burner 200 may be started to heat the burner 300 for normal hot water supply. Correspondingly, the electric heating module 400 can be powered off to stop working.
In the process of closing and restarting water for the gas water heater, the water temperature fluctuation of the water outlet pipe 102 caused by the fact that the water is closed and restarted can be effectively reduced by executing the steps, and therefore the use experience of a user is improved.
In addition, the thick film is used as a heating source to heat water flowing in the heating container, so that the uniform heating effect can be achieved, the thick film is wrapped outside the heating container, the heating container is made of heat conducting materials (such as aluminum and copper), and heat generated by the thick film is conducted to the water flowing inside the heating container through the heating container, so that electric auxiliary heating is achieved.
In some embodiments, the presentity for the heating container may take a variety of forms. The following is an illustration with reference to the accompanying drawings.
In the second embodiment, as shown in fig. 2 to fig. 4, the heating container 11 adopts a water tank structure, the first thick film 13 is wrapped outside the heating container 11, the heating container is provided with a first water pipe 114 and a second water pipe 115, the first water pipe and the second water pipe are arranged at intervals, and the first thick film 13 is located between the first water pipe and the second water pipe.
Specifically, the first water pipe 114 and the second water pipe 115 are distributed on two sides of the first thick film 13, the water output from the heat exchanger enters the heating container through the first water pipe, the first thick film 13 heats the water flowing in the heating container, and then the heated water in the heating container is output from the second water pipe 115.
The first water pipe 114 and the second water pipe 115 are spaced apart to provide a sufficient distance between the inlet water and the outlet water to enable the first thick film 13 to effectively heat the water in the heating vessel. Meanwhile, the first thick film 13 may be disposed on the heating container with sufficient use of the interval between the first water pipe 114 and the second water pipe 115 to increase the heating power of the first thick film 13.
For the heating container, a first connection port 111 and a second connection port 112 are provided on the heating container 11, a first water pipe 114 is provided on the first connection port 111, and a second water pipe 115 is provided on the second connection port 112. In order to discharge the dirt accumulated at the bottom of the heating container, the bottom of the heating container 11 is further provided with a mounting opening for mounting a drain pipe.
In a preferred embodiment, an electric heating tube 12 is also provided in the heating vessel. Specifically, the water introduced into the gas water heater flows into the heating vessel 11 via the first water pipe 114, and heats the water introduced into the heating vessel 11 together with the first thick film 13 by the electric heating pipe 12.
In one embodiment, the heating vessel 11 includes a heating cartridge 116 and end caps 113 at both ends. The end cap 113 is hermetically connected to a corresponding port portion of the heating cylinder 116. The first connection port 111, the second connection port 112, and the mounting port are arranged on the side wall of the heating cylinder 116; the electric heating tube 12 is provided on one of the end caps 113.
At the time of assembly, the end cap 113 mounted with the electric heating tube 12 is mounted at the end of the heating cylinder 116 to complete the assembly. The first connection port 111, the second connection port 112 and the mounting port are provided on the side wall of the heating cylinder 116, so that the connection of the pipeline and the mounting of the drain pipe can be conveniently performed.
In some embodiments, in order to allow the water entering the heating container 11 to be sufficiently heated, heating efficiency is improved. The portion of the electric heating tube 12 located inside the heating container 11 forms a coil section.
Specifically, for the electric heating tube 12, a spiral tube section is formed at the inner part of the heating container 11, and the spiral tube section can effectively prolong the length of the electric heating tube 12 in the heating container 11, so as to increase the contact area between the electric heating tube 12 and water in the heating container 11, and further meet the heating requirement of small volume and high function.
Meanwhile, the spiral pipe section formed by the electric heating pipe 12 can also play a role in guiding water flow in the heating container 11, and the interval between the spiral pipe sections forms a guiding space for guiding the water flow to flow spirally, so that the flow path of the water flow in the heating container 11 is prolonged, and the heat exchange efficiency is improved more favorably.
In a preferred embodiment, the first connection port 111 is an inlet and is close to an end cover 113 for installing the electric heating tube, the second connection port 112 is an outlet and is close to the other end cover 113, and the water outlet direction of the first connection port 111 faces to a spiral starting position M of the spiral tube section.
Specifically, referring to the direction of the water flow entering the heating container 11 through the first connection port 111 as represented by the dotted arrow in fig. 4, for the water flow entering the heating container 11 through the first connection port 111 to flow toward the spiral starting point M of the spiral pipe section, the water flow flows along the spiral pipe section to the inner wall of the heating cylinder 116, and after being blocked by the inner wall of the heating cylinder 116, the water flow forms a rotational flow in the heating cylinder 116 along the guide of the spiral pipe section.
In this way, the water flow flowing into the heating container 11 flows toward the second connection port 112 and also flows rotationally around the axis of the heating cylinder 116 under the guiding action of the spiral pipe section, so that the flow path of the water flow in the heating container 11 can be effectively prolonged, and efficient heating of the water can be ensured.
Wherein, the diameter of the first water pipe 114 is gradually reduced along the water flow direction. The water flow enters the heating container 11 through the first water pipe 114, the speed of the water flow is accelerated, the water flow entering the heating container 11 impacts the water in the heating container 11, and the water in the heating container 11 obtains a better rotary flow effect under the guiding effect of the spiral pipe section.
In another embodiment, for the electric heating tube 12 using the electric heating tube, the connection terminal thereof extends to the outside of the end cover 113, and at the same time, a temperature controller 14 may be further disposed on the end cover 113, and the temperature controller 14 is electrically connected to the connection terminal of the electric heating tube 12.
Specifically, the end cover 113 can be used for installing the electric heating pipe 12 on one hand and installing the temperature controller 14 on the other hand simultaneously so as to meet the requirement of compact design.
In order to improve the safety of use, a protective cover (not shown) is further provided at the end of the heating container 11, which covers the connection terminals and the temperature controller 14. The connecting terminal exposed outside the heating container 11 can be protected through the protective cover, so that potential safety hazards caused by water leakage in the shell 100 of the gas water heater can be avoided.
In a third embodiment, as shown in fig. 5-7, the heating vessel may include an outer sleeve 22 and an inner sleeve 23. The outer sleeve 22 is provided with a water inlet 221, one end part of the inner cannula 23 is provided with a water outlet 231, and the other end part is provided with an auxiliary inlet 32; the inner cannula 23 is sealingly inserted into the outer cannula 22, the auxiliary inlet 32 being located within the outer cannula 22, and the second thick film 21 being wrapped around said first tube and being adapted to heat the water in said first tube.
Specifically, the sleeve mode is adopted, so that the whole volume of the heating container is reduced under the condition of effectively increasing the water flow heating path, and the requirement of miniaturization design is further met.
In some embodiments, the heating vessel further comprises a spiral plate 25, the spiral plate 25 being disposed around the inner cannula 23 and extending along the length of the inner cannula 23.
Specifically, in the actual use process, the water inlet 221 is connected to the second connecting pipe 1021, and the water outlet 231 is connected to the water outlet pipe. A spiral plate 25 is located in the outer sleeve 22 and distributed around the inner cannula 23, the spiral plate 25 being capable of guiding the water flow in the outer sleeve 22 such that the water flow spirals between the outer sleeve 22 and the inner cannula 23. Therefore, the flow path of the water flow can be effectively prolonged, so that the water flow can be uniformly heated, and the requirement of instant heating water is met.
Wherein a spiral plate 25 is arranged on the inner cannula 23.
Specifically, the spiral plate 25 is integrally in a spiral structure and is sleeved on the outer portion of the inner cannula 23, so that the spiral plate 25 is installed and fixed. While the spiral plate 25 may be welded to the inner cannula 23 or the spiral plate 25 may be bonded to the inner cannula 23. The specific manner of fixedly connecting the spiral plate 25 to the inner tube 23 is not limited and will not be described in detail herein.
In addition, for ease of installation and positioning, the outer edge of the spiral plate 25 is affixed to the inner tube wall of the outer sleeve 22.
Specifically, after the inner cannula 23 is inserted into the outer cannula 22, the edge of the spiral plate 25 is abutted against the inner wall of the outer cannula 22, so that the inner cannula 23 suspended in the outer cannula 22 can be better supported and positioned. Moreover, since the edge of the spiral plate 25 is abutted against the inner wall of the outer sleeve 22, the water flowing in from the water inlet 221 is guided and conveyed through the spiral plate 25, so that the heating uniformity of the water flow is ensured.
In some embodiments, the water inlet 221 and the water outlet 231 may be disposed at the same end of the outer sleeve 22 and the inner insert 23, so that the inflow water flows along the length direction of the outer sleeve 22 and then flows along the length direction of the inner insert 23 in the opposite direction. In this way, it is also more advantageous for the water to be heated uniformly so that the water outlet 231 outputs water at a uniform temperature.
Specifically, when the electric heating module 400 is turned on again, since a certain amount of hot water is stored in the outer sleeve 22 and the inner sleeve 23, after the cold water enters the outer sleeve 22 again, the water flowing out of the inner sleeve 23 can be subjected to heat absorption and temperature reduction, so that the temperature of the water outlet 231 is prevented or reduced from being too high due to the fact that the hot water stored in the outer sleeve 22 and the inner sleeve 23 is heated again, and the user experience is improved.
In another embodiment, the electric heating module 400 further comprises a water treatment member 24, the water treatment member 24 is used for performing bacteriostasis and scale inhibition treatment on water flowing through, and the water treatment member 24 is arranged between the inner cannula 23 and the outer cannula 22;
when a user opens the water terminal to use hot water, water in the water supply pipe enters the outer sleeve 22 through the water inlet 221, and the water entering the outer sleeve 22 is treated by the water treatment component 24 to perform bacteriostasis and scale inhibition treatment on the water, so that the effect of softening the water is achieved. The softened water continues to flow and is heated by the heat generated by the second thick film 21, and the heated water flows into the inner cannula 23 via the auxiliary inlet 32 and is output from the inner cannula 23.
On the one hand, an installation space is formed between the outer sleeve 22 and the inner insert 23 to place the water treatment component 24, so that water flow enters the outer sleeve 22 and then is treated by the water treatment component 24; on the other hand, a circuitous pipeline is formed between the outer sleeve 22 and the inner sleeve 23, so that water entering the outer sleeve 22 is prevented from flowing out quickly along with water flow, the water entering the outer sleeve 22 can be ensured to be fully contacted with the water treatment component 24, and the water treatment requirement is met.
In some embodiments, to ensure that the inflowing water can be treated by the water treatment member 24, the water treatment member 24 may be disposed at one side of the water inlet 221 and cover the water inlet 221. Thus, the water flowing in from the water inlet 221 flows into the inner cannula 23 from the auxiliary inlet 32 after being treated by the water treatment member 24 and is outputted from the water outlet 231, so that the inflow water is ensured to be treated by the water treatment member 24.
In one embodiment, for the water treatment component 24, its presentity takes on a variety of forms, such as: the conventional antibacterial scale inhibitor provided at the water inlet end preferably includes a plurality of granular materials 241 in the water treatment member 24, the granular materials 241 being located at one side of the end of the spiral plate 25.
Specifically, a granular material made of a material with antibacterial and scale inhibiting functions (such as silicon-phosphorus crystal) is filled between the outer sleeve 22 and the inner sleeve 23. After water flows in through the water inlet 221, the water can be fully contacted with the granular material 241, so that the contact area between the granular material 241 and water flow is increased, and better antibacterial and scale inhibiting treatment is achieved on the water flow.
Wherein, in order to avoid the granular material 241 from leaking out along with the flow of the water, the water treatment component 24 further comprises a shielding net 242, and the shielding net 242 is positioned between the spiral plate 25 and the granular material 241. Specifically, in use, after water enters the outer sleeve 22, it is treated by the particulate material 241 and flows through the shielding mesh 242 and then along the direction of the spiral plate 25. Under the effect of the shielding net 242, the granular material 241 is limited at one end of the outer sleeve 22, so as to avoid the granular material 241 from flowing along with water flow. The mesh size of the shielding net 242 should be smaller than the size of the granular material 241.
Preferably, for heat preservation, a heat preservation shell 26 can be arranged outside the second thick film 21, so that on one hand, the heat preservation shell 26 can preserve heat generated by the thick film, and on the other hand, the heat preservation shell 26 can also protect the second thick film 21 outside, so that the use reliability and safety are improved.
In some embodiments, to facilitate temperature detection, a temperature detector 27 may be provided at the end of the outer sleeve 22 remote from the water inlet 221, the temperature detector 27 being located near the auxiliary inlet 32 of the inner cannula 23 to detect the temperature of the water flowing into the inner cannula 23 to control the heating power of the second thick film 21. After the water flows into the inner cannula 23 in the opposite direction, the water flowing through the inner cannula 23 can still be regulated by the water temperature in the outer sleeve in the outflow process, so that the heating power of the second thick film 21 is further regulated according to the temperature of the water flowing into the inner cannula 23, and the water outlet temperature of the water outlet 231 is accurately controlled.
In other embodiments, to facilitate removal of the replacement water treatment member 24, a removable flange 28 is provided at one end of the outer sleeve 22.
Specifically, during assembly, the flange 28 is mounted on a corresponding nozzle of the outer sleeve 22, and the inner sleeve 23 is sealed through the flange 28 and extends into the outer sleeve 22, thereby assembling the water treatment assembly 24 between the outer sleeve 22 and the inner sleeve 23. When the water treatment member 24 needs to be replaced, the flange 28 is simply removed from the outer sleeve 22, and the water treatment member 24 can be replaced with a new one.
Preferably, for ease of assembly, flange 28 may be secured directly to inner cannula 23, for example: the flange 28 is sealed and welded to the inner cannula 23, and after the flange 28 is fixed to the outer cannula 22, the inner cannula 23 can be installed to simplify the assembly process.
In order to effectively reduce noise generated in the operation process of the gas water heater, the fourth embodiment is based on the gas water heater in the first embodiment. As shown in fig. 1 and 8, the control method of the gas water heater includes:
step S101, calculating the heat quantity Q required by the current heating of the inflow water flow t 。
Specifically, after the gas water heater is started, when water flows into the gas water heater and needs to be heated, the corresponding heating source is judged and selected by calculating the heat required by water flow heating.
Step S102, judging Q t Whether or not the heat quantity Q generated by the electric heating module in the gas water heater is larger than the heat quantity Q generated by the electric heating module in the gas water heater 0 。
And step S103, if yes, starting a burner in the gas water heater to heat the inflow water flow.
Specifically, when a larger amount of heat is required to heat the water to a set temperature, the burner 200 is started, and more heat is generated by the burner 200 to meet the heat requirement of the water flow.
And step S104, if not, starting the electric heating module to heat the inflow water flow.
Specifically, when less heat is required to heat the water flow to the set temperature, the electric heating module 400 is started, and the heat generated by the electric heating module 400 is used to meet the heat requirement of the water flow. In this case, the burner 200 and the blower in the gas water heater are turned off while the electric heating module 400 is started. At this time, the burner 200 and the fan do not need to be started, so that noise generated by the burner and the fan is reduced, and the purpose of noise reduction is achieved.
Wherein, for the calculation of the heat required by the inflow water flow, the formula is as follows: q (Q) t =cρV t ×(T 0 -T t ) Calculate Q t Wherein the inflow water flow is V t Temperature T of water inlet t And a set temperature T 0 。
Specifically, the water inlet pipe 101 is provided with a temperature sensor and a flow sensor as required, so that the water inlet flow can be detected as V t And the water inlet temperature T t . Setting the temperature T 0 Then the Q of the heat required by the water inflow can be calculated according to the formula which is preset by the user t 。
In a preferred embodiment, the gas water heater is further provided with a noise detector 600, the noise detector 600 being capable of sending a signal of noise detection to the control device 500. When the gas water heater is in operation, the control device 500 controls the gas water heater according to the control program of the gas water heater which is stored in the memory and can be executed by the processor.
As shown in fig. 1 and 9, the specific control method includes:
s201, acquiring noise generated in the operation process of the gas water heater.
Specifically, after the gas water heater is powered on and started, noise generated during the operation of the gas water heater can be detected in real time by the noise detector 600, and the noise detector 600 sends the detected noise value to the control device 500.
S202, judging whether the acquired noise value is within a set noise range.
Specifically, after receiving the noise value signal sent by the noise detector 600, the control device 500 compares the noise value signal according to the noise range information stored in the memory to determine whether the operation noise of the gas water heater exceeds the stored noise range.
And S203, if the heating quantity of the burner and the electric heating module in the gas water heater is in the set noise range, keeping the heating quantity unchanged.
Specifically, when the processor in the control device 500 analyzes and determines that the operation noise of the gas water heater is within the stored noise range, it indicates that the operation parameter of the gas water heater is suitable, and then the operation of the operation parameter is continuously maintained.
And S204, if the set noise range is exceeded, adjusting heating amounts of a burner and an electric heating module in the gas water heater until the acquired noise value is within the set noise range.
Specifically, when the processor in the control device 500 analyzes and determines that the operation noise of the gas water heater is within the stored noise range, it indicates that the operation parameters of the gas water heater are not suitable, and the operation parameters are adjusted by controlling the burner 200 and the electric heating module 400 through the processor. And, in adjusting the operating parameters of the burner 200 and the electric heating module 400, the noise is monitored in real time in cooperation with the noise detector 600 until the obtained noise value is within the set noise range.
In some embodiments, for a particular adjustment of the operating parameters of the burner 200 and the electric heating module 400, the following adjustments may be made based on the obtained noise value.
If the acquired noise value is higher than the maximum value of the set noise range, the heating amount of the electric heating module is increased, and the heating amount of the burner is reduced.
Specifically, when the acquired noise value is higher than the maximum value of the set noise range, it is indicated that the operation noise of the gas water heater is large, and the noise reduction process is required. The noise reduction is performed by reducing the operating power of the noise generating component, and therefore, the heating amount of the burner 200 needs to be reduced; meanwhile, in order to meet the user's requirement of using hot water, the heating amount of the electric heating module 400 needs to be increased simultaneously.
At this time, since the power of the burner 200 is reduced, noise generated from the burner 200 is effectively reduced, and thus noise reduction processing is realized.
Wherein, as the power of the burner 200 decreases, the power of the fan used with the burner 200 may also decrease. Therefore, in the case that the acquired noise value is higher than the maximum value of the set noise range, the rotation speed of the fan in the gas water heater can be reduced at the same time. After the rotating speed of the fan is reduced, the wind noise generated by the fan can be further reduced, and the noise is reduced more favorably.
On the other hand, in the control process, if the acquired noise value is lower than the minimum value of the set noise range, the heating amount of the burner is increased, and the heating amount of the electric heating module is reduced.
Specifically, in the case where the obtained noise value is lower than the minimum value of the set noise range, it is indicated that the noise level of the gas water heater satisfies the design requirement, and at this time, it is necessary to improve the heating efficiency, and it is apparent that the heating efficiency of the burner 200 is higher than that of the electric heating module 400.
Therefore, the heating power of the burner 200 is gradually increased and the heating power of the electric heating module 400 is simultaneously reduced. With the increase of the heating power of the burner 200, the noise generated by the gas water heater is gradually increased, and the obtained noise value is located in the noise range in the process of increasing the heating power of the burner 200.
And the operation power consumption of the gas water heater can be more effectively reduced due to the increase of the heating power of the burner 200 and the reduction of the heating power of the electric heating module.
In addition, as the heating power of the burner 200 increases, the rotational speed of the fan in the gas water heater is correspondingly increased to ensure that the gas in the burner 200 can be sufficiently combusted.
The above embodiments are only for illustrating the technical solution of the present application, and are not limiting; although the application has been described in detail with reference to the foregoing embodiments, it will be apparent to one skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.
Claims (4)
1. A gas water heater, comprising:
the shell is internally provided with an installation space, and the shell is also provided with a water inlet pipe and a water outlet pipe which extend to the outside;
a burner for combusting a combustible gas;
a fan for delivering air to the burner;
a heat exchanger for supplying water to flow and heating the water using heat generated from the burner;
the electric heating module comprises a heating container and a thick film, wherein an electric heating flow channel is formed in the heating container, and the thick film is wrapped outside the heating container;
the water inlet pipe and the water outlet pipe are respectively connected with the heat exchanger to form a heating water flow path, and the heating container is connected in series in the heating water flow path; the thick film is used for heating water flowing through the heating container by electrifying after the gas water heater is turned off and started again, and is turned off after the burner is started;
the heating container is provided with a first water pipe and a second water pipe, the first water pipe and the second water pipe are arranged at intervals, and the thick film is positioned between the first water pipe and the second water pipe; the water output from the heat exchanger enters the heating container through the first water pipe, the thick film heats the water flowing in the heating container, and then the heated water in the heating container is output from the second water pipe;
an electric heating pipe is further arranged in the heating container, and a spiral pipe section is formed at the position of the electric heating pipe in the heating container;
the water outlet direction of the first water pipe faces to the spiral starting position of the spiral pipe section, and a guide space for guiding water flow to flow spirally is formed at intervals between the spiral pipe sections; the heating container is provided with a first connecting port, and the first connecting port is an inlet and is close to an end cover for installing the electric heating pipe; the water flow entering the heating container from the first connecting port flows towards the spiral starting position of the spiral pipe section, the water flow flows along the spiral pipe section to the inner wall of the heating container, and after being blocked by the inner wall of the heating container, the water flow forms a rotary flowing water flow in the heating container along the guide of the spiral pipe section.
2. The gas water heater as recited in claim 1, wherein the heating vessel comprises a heating cartridge and two end caps, the end caps being sealingly connected to corresponding ports of the heating cartridge, the electric heating tube being disposed on one of the end caps.
3. The gas water heater according to claim 2, wherein the connection terminal of the electric heating pipe extends to the outside of the corresponding end cover, and a temperature controller is further provided on the end cover on which the electric heating pipe is mounted, and the temperature controller is electrically connected with the connection terminal of the electric heating part.
4. A gas water heater as claimed in any one of claims 1 to 3, wherein the heating vessel is further provided with a heat insulating layer on the outside, the heat insulating layer enveloping the thick film.
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| CN202110443048.XA Active CN113154689B (en) | 2020-12-01 | 2021-04-23 | Control method of gas water heater and gas water heater |
| CN202110465624.0A Active CN113154691B (en) | 2020-12-01 | 2021-04-28 | Gas water heater and control method thereof |
| CN202110607479.5A Active CN113294917B (en) | 2020-12-01 | 2021-06-01 | gas water heater |
| CN202110728368.XA Active CN113465183B (en) | 2020-12-01 | 2021-06-29 | Gas water heater |
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| CN202110443048.XA Active CN113154689B (en) | 2020-12-01 | 2021-04-23 | Control method of gas water heater and gas water heater |
| CN202110465624.0A Active CN113154691B (en) | 2020-12-01 | 2021-04-28 | Gas water heater and control method thereof |
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| GB2609057B (en) * | 2021-10-27 | 2023-07-12 | Digital Heat Ltd | Burner vessel and fluid heater |
| CN115325707A (en) * | 2022-08-26 | 2022-11-11 | 广东万家乐燃气具有限公司 | Control method of dual-energy water heater and gas water heater |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN113154689A (en) | 2021-07-23 |
| CN113154691A (en) | 2021-07-23 |
| CN113465183A (en) | 2021-10-01 |
| CN113154689B (en) | 2022-11-15 |
| CN113188256A (en) | 2021-07-30 |
| CN113294917A (en) | 2021-08-24 |
| CN113154691B (en) | 2023-04-21 |
| CN113465183B (en) | 2023-10-27 |
| CN113188256B (en) | 2022-11-15 |
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