CN113899072B - Gas Heating Hot Water Boiler - Google Patents
Gas Heating Hot Water Boiler Download PDFInfo
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- CN113899072B CN113899072B CN202111271216.8A CN202111271216A CN113899072B CN 113899072 B CN113899072 B CN 113899072B CN 202111271216 A CN202111271216 A CN 202111271216A CN 113899072 B CN113899072 B CN 113899072B
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- heat exchanger
- pipe
- heating
- water
- hot water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 242
- 238000010438 heat treatment Methods 0.000 title claims abstract description 119
- 239000008236 heating water Substances 0.000 claims description 49
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 230000036541 health Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 32
- 238000002485 combustion reaction Methods 0.000 description 8
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 7
- 239000003546 flue gas Substances 0.000 description 7
- 230000001105 regulatory effect Effects 0.000 description 6
- 230000001502 supplementing effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000008399 tap water Substances 0.000 description 2
- 235000020679 tap water Nutrition 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/48—Water heaters for central heating incorporating heaters for domestic water
- F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/18—Arrangement or mounting of grates or heating means
- F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
- F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
- F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
-
- 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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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Central Heating Systems (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
本发明涉及一种燃气采暖热水炉，包括：主换热器、板式热交换器、次换热器、燃烧器、风机、第一切换阀、采暖热水管、采暖回水管、卫浴进水管、卫浴出水管；主换热器连接采暖热水管及采暖回水管；板式热交换器连接于采暖热水管与采暖回水管之间，板式热交换器还连接卫浴进水管及卫浴出水管；次换热器连接于板式热交换器与采暖热水管之间，或，次换热器连接于板式热交换器与卫浴出水管之间；燃烧器对应主换热器设置，风机对应次换热器设置；第一切换阀连接于板式热交换器与采暖热水管之间。实现在使用卫浴功能时，也能够进行供暖，有效避免因室内温度出现下降，有效提升用户的舒适性和体验效果，有效保证用户的身体健康。
The present invention relates to a gas heating hot water boiler, comprising: a main heat exchanger, a plate heat exchanger, a secondary heat exchanger, a burner, a fan, a first switching valve, a heating hot water pipe, a heating return pipe, a bathroom water inlet pipe, and a bathroom water outlet pipe; the main heat exchanger is connected to the heating hot water pipe and the heating return pipe; the plate heat exchanger is connected between the heating hot water pipe and the heating return pipe, and the plate heat exchanger is also connected to the bathroom water inlet pipe and the bathroom water outlet pipe; the secondary heat exchanger is connected between the plate heat exchanger and the heating hot water pipe, or, the secondary heat exchanger is connected between the plate heat exchanger and the bathroom water outlet pipe; the burner is arranged corresponding to the main heat exchanger, and the fan is arranged corresponding to the secondary heat exchanger; the first switching valve is connected between the plate heat exchanger and the heating hot water pipe. It is realized that when the bathroom function is used, heating can also be carried out, effectively avoiding the drop in indoor temperature, effectively improving the user's comfort and experience effect, and effectively ensuring the user's health.
Description
Technical Field
The invention relates to the technical field of household heating equipment, in particular to a gas heating water heater.
Background
Along with the continuous improvement of the living standard of people, the requirements of people on indoor heating comfort level are also higher and higher, and the people generally adopt a gas heating water heater to realize the heating function and the bathroom function.
When the traditional gas heating water heater heats, high-temperature flue gas generated by combustion of the burner heats water in the system through the main heat exchanger, the heated water flows through the radiator arranged indoors under the driving of the circulating pump, and the heat is emitted indoors through the radiator, so that the room temperature rises, the heating purpose is achieved, and at the moment, the bathroom function is in a closed state. When a user needs to use the bathroom function, the circulating hot water in the system exchanges heat with the bathroom water in an isolated mode through the plate heat exchanger, the heated bathroom water flows out of the hot water outlet, but the circulating hot water cannot flow through the radiator arranged in the room to emit heat to the room, so that the indoor temperature is reduced, the indoor comfort of the user is affected, the user is easy to catch a cold, and the physical health of the user is endangered.
Disclosure of Invention
The invention aims to provide a gas heating water heater which can perform heating when a bathroom function is used.
The technical problems are solved by the following technical scheme:
The gas heating water heater comprises a main heat exchanger, a plate heat exchanger, a secondary heat exchanger, a burner, a fan, a first switching valve, a heating hot water pipe, a heating return pipe, a bathroom water inlet pipe and a bathroom water outlet pipe, wherein the main heat exchanger is connected with the heating hot water pipe and the heating return pipe, the plate heat exchanger is connected between the heating hot water pipe and the heating return pipe and is also connected with the bathroom water inlet pipe and the bathroom water outlet pipe, the secondary heat exchanger is connected between the plate heat exchanger and the heating hot water pipe or between the plate heat exchanger and the bathroom water outlet pipe, the burner is arranged corresponding to the main heat exchanger, the fan is arranged corresponding to the secondary heat exchanger, and the first switching valve is connected between the plate heat exchanger and the heating hot water pipe.
When the bathroom heating water heater is used, the first switching valve is adjusted to enable the plate heat exchanger to be communicated with the heating hot water pipe, heat generated by combustion of the burner heats circulating water flowing through the main heat exchanger, the heated circulating water flows to the secondary heat exchanger through the heating hot water pipe to conduct partial heat exchange so as to heat air flow flowing through the secondary heat exchanger, the fan conveys the air flow heated by the secondary heat exchanger to the room for heating, the bathroom water flows into the plate heat exchanger through the bathroom water inlet pipe, the circulating water after partial heat release in the secondary heat exchanger flows into the plate heat exchanger for heating the bathroom water flowing through the plate heat exchanger, and the heated bathroom water is discharged through the bathroom water outlet pipe for users. When the bathroom function is used, heating can be performed, the decline of indoor temperature is effectively avoided, the comfort and experience effect of a user are effectively improved, and the physical health of the user is effectively ensured.
In one embodiment, the first switching valve is a three-way valve, the first switching valve is provided with a first valve port, a second valve port and a third valve port, the first valve port and the second valve port are both connected with a heating hot water pipe, the third valve port is connected with a heat exchange water inlet of the plate heat exchanger, when a heating function is used, the first valve port and the second valve port are communicated, and when a bathroom function is used, the first valve port and the third valve port are communicated.
In one embodiment, when the secondary heat exchanger is connected between the plate heat exchanger and the heating hot water pipe, the first switching valve is positioned between the water outlet end of the secondary heat exchanger and the plate heat exchanger, the gas heating hot water furnace further comprises a second switching valve, the second switching valve is connected between the water inlet end of the secondary heat exchanger and the heating hot water pipe, and the second switching valve is positioned upstream of the first switching valve along the flow direction of circulating water in the heating hot water pipe.
In one embodiment, the second switching valve is a three-way valve, the second switching valve is provided with a first interface, a second interface and a third interface, the first interface and the second interface are both connected with the heating hot water pipe, the third interface is connected with the water inlet end of the secondary heat exchanger, when the heating function is used, the first interface and the second interface are communicated, and when the bathroom function is used, the first interface and the third interface are communicated.
In one embodiment, an air heater is also included for preheating the air flow to the secondary heat exchanger.
In one embodiment, the air heater, the fan and the secondary heat exchanger are sequentially arranged, and the air heater, the fan and the secondary heat exchanger are sequentially communicated through air pipes to form an air flow channel, or the air heater, the secondary heat exchanger and the fan are sequentially arranged, and the air heater, the secondary heat exchanger and the fan are sequentially communicated through air pipes to form the air flow channel.
In one embodiment, the heating system further comprises an expansion water tank, wherein the expansion water tank is connected with the heating water return pipe.
In one embodiment, the heating system further comprises a circulating pump, wherein the circulating pump is connected with the heating water return pipe.
In one embodiment, the burner further comprises a gas valve, and the gas valve is connected with the burner.
In one embodiment, the bathroom water inlet pipe is further connected with the heating return pipe, and the gas heating water heater further comprises a water supplementing valve connected between the bathroom water inlet pipe and the heating return pipe.
Drawings
Fig. 1 is a schematic structural view of a gas heating water heater according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a gas heating water heater according to another embodiment of the present invention;
the meaning of the reference numerals in the drawings are:
the heat exchanger comprises a shell 10, an air inlet 11, an air outlet 12, a main heat exchanger 20, a plate heat exchanger 30, a secondary heat exchanger 40, a burner 50, a fan 60, a first switching valve 70, a heating hot water pipe 80, a heating return water pipe 90, a bathroom water inlet pipe 100, a bathroom water outlet pipe 110, a heat exchange water inlet pipe 120, a heat exchange water outlet pipe 130, a second switching valve 140, an air heater 150, an air pipe 160, an expansion tank 170, a circulating pump 180, a gas valve 190 and a water supplementing valve 200.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present invention, 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 formed, mechanically connected, electrically connected, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interaction relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.
It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.
Referring to fig. 1, a gas heating water heater according to an embodiment of the invention includes a housing 10, a main heat exchanger 20, a plate heat exchanger 30, a sub heat exchanger 40, a burner 50, a fan 60, a first switching valve 70, a heating hot water pipe 80, a heating return pipe 90, a bathroom water inlet pipe 100 and a bathroom water outlet pipe 110. The main heat exchanger 20, the plate heat exchanger 30, the sub heat exchanger 40, the burner 50, the blower fan 60, and the first switching valve 70 are provided in the housing 10. The main heat exchanger 20 is connected to a heating hot water pipe 80 and a heating return pipe 90. The plate heat exchanger 30 is connected between the heating hot water pipe 80 and the heating return pipe 90, and the plate heat exchanger 30 is connected with the bathroom water inlet pipe 100 and the bathroom water outlet pipe 110. The secondary heat exchanger 40 is connected between the plate heat exchanger 30 and the heating hot water pipe 80. The first switching valve 70 is connected between the plate heat exchanger 30 and the heating hot water pipe 80. The burner 50 is disposed corresponding to the primary heat exchanger 20, and the blower 60 is disposed corresponding to the secondary heat exchanger 40.
Specifically, the main heat exchanger 20 has a heating water outlet and a heating water inlet which are communicated with each other. Further, the main heat exchanger 20 includes a main fin group and a main heat exchange tube penetrating the main fin group, the main heat exchange tube is in a zigzag shape, and two ends of the main heat exchange tube are respectively provided with a heating water outlet and a heating water inlet. One end of the heating hot water pipe 80 is connected to the heating water outlet of the main heat exchanger 20, and the other end of the heating hot water pipe 80 is connected to an external radiator. One end of the heating return pipe 90 is connected with the heating water inlet of the main heat exchanger 20, and the other end of the heating return pipe 90 is connected with a radiator. As can be appreciated, the burner 50 burns the fuel gas to generate the high temperature flue gas, the heat in the high temperature flue gas is transferred to the main fin group, and then transferred to the main heat exchange tube through the main fin group, so as to heat the circulating water flowing through the main heat exchange tube, the heated circulating water is sequentially discharged through the heating water outlet of the main heat exchanger 20 and the heating hot water tube 80, and the circulating water after heat exchange sequentially flows back to the main heat exchange tube through the heating water return tube 90 and the heating water inlet of the main heat exchanger 20.
The plate heat exchanger 30 is provided with a heat exchange water inlet and a heat exchange water outlet which are communicated with each other, a cold water inlet and a hot water outlet which are communicated with each other, the gas heating water heater also comprises a heat exchange water inlet pipe 120 and a heat exchange water outlet pipe 130, two ends of the heat exchange water inlet pipe 120 are respectively connected with the heat exchange water inlet and the heating hot water pipe 80 of the plate heat exchanger 30, and two ends of the heat exchange water outlet pipe 130 are respectively connected with the heat exchange water outlet and the heating water return pipe 90 of the plate heat exchanger 30. The cold water inlet of the plate heat exchanger 30 at one end of the bathroom water inlet pipe 100, the other end of the bathroom water inlet pipe 100 is used for being connected with an external tap water pipe, one end of the bathroom water outlet pipe 110 is connected with the hot water outlet of the plate heat exchanger 30, and the other end of the bathroom water outlet pipe 110 is used for being connected with bathroom equipment. It can be understood that when the bathroom function is used, the external bathroom water sequentially enters the plate heat exchanger 30 through the bathroom water inlet pipe 100 and the cold water inlet of the plate heat exchanger 30, meanwhile, the circulating water in the heating hot water pipe 80 sequentially enters the plate heat exchanger 30 through the heat exchange water inlet pipe 120 and the heat exchange water inlet to exchange heat, so as to heat the bathroom water in the plate heat exchanger 30, the heated bathroom equipment sequentially discharges through the hot water outlet of the plate heat exchanger 30 and the bathroom water outlet pipe 110, and the circulating water after heat exchange sequentially flows to the heating return pipe 90 through the heat exchange water outlet of the plate heat exchanger 30 and the heat exchange water outlet pipe 130.
The secondary heat exchanger 40 has a water inlet end and a water outlet end. Specifically, the secondary heat exchanger 40 includes a secondary fin group and a secondary heat exchange tube penetrating the secondary fin group, wherein the secondary heat exchange tube is in a meandering shape, and two ends of the secondary heat exchange tube are a water inlet end and a water outlet end respectively. In this embodiment, the water inlet end and the water outlet end of the secondary heat exchanger 40 are both connected to the heating hot water pipe 80, and the first switching valve 70 is located between the water outlet end of the secondary heat exchanger 40 and the plate heat exchanger 30. Specifically, the first switching valve 70 is a three-way valve, the first switching valve 70 has a first valve port, a second valve port and a third valve port, the first valve port and the second valve port are both connected with the heating hot water pipe 80, the third valve port is connected with the heat exchange water inlet of the plate heat exchanger 30, and further, the third valve port is connected with the heat exchange water inlet through the heat exchange water inlet pipe 120, that is, the third valve port is connected with one end of the heat exchange water inlet pipe 120 far away from the heat exchange water inlet. When the bathroom heating function is used, the first valve port and the third valve port are communicated, and the circulating water in the heating hot water pipe 80 sequentially flows through the first valve port and the third valve port of the first switching valve 70.
The gas heating water heater further includes a second switching valve 140, the second switching valve 140 is connected between the water inlet end of the secondary heat exchanger 40 and the heating hot water pipe 80, and the second switching valve 140 is located upstream of the first switching valve 70 along the flow direction of the circulating water in the heating hot water pipe 80, i.e., the second switching valve 140 is located between the first switching valve 70 and the main heat exchanger 20. Specifically, the second switching valve 140 is also a three-way valve, the second switching valve 140 has a first interface, a second interface, and a third interface, both of which are connected to the heating hot water pipe 80, and the third interface is connected to the water inlet end of the secondary heat exchanger 40. When the bathroom heating function is used, the first interface is communicated with the third interface, and the circulating water in the heating hot water pipe 80 sequentially flows through the first interface and the third interface of the second switching valve 140.
In some embodiments, the gas heating water heater further includes an air heater 150, the air heater 150 for preheating the air flow to the secondary heat exchanger 40. It will be appreciated that the air heater 150 preheats the air flow to a preset temperature, and the air flow preheated to the preset temperature flows to the secondary heat exchanger 40 to continue heating. Because the temperature difference between the outdoor cold air flow and the hot water in the secondary heat exchanger 40 is larger, the air heater 150 is arranged to preheat the air flow flowing to the secondary heat exchanger 40, so that the problem that a large amount of heat in the hot water is taken away due to the fact that the outdoor cold air flow directly exchanges heat with the hot water flowing through the secondary heat exchanger 40 is effectively avoided, and the temperature of the bathroom hot water is too low to meet the requirement of the bathroom temperature is solved. In addition, a large amount of condensed water generated when outdoor cold air flow directly exchanges heat with hot water can be effectively prevented from being accumulated in the shell 10 to damage devices of the shell 10 or directly dripping indoors to influence the use experience of a user.
The air heater 150, the fan 60 and the secondary heat exchanger 40 are sequentially arranged, that is, the air heater 150 is located at one side of the fan 60 away from the secondary heat exchanger 40, and the air heater 150, the fan 60 and the secondary heat exchanger 40 are sequentially communicated through the air pipe 160 to form an air flow channel, and the fan 60 is a blower. Specifically, the casing 10 is provided with an air inlet 11 and an air outlet 12, and air pipes 160 are respectively arranged between the air inlet 11 and the air heater 150, between the air heater 150 and the fan 60, and between the fan 60 and the secondary heat exchanger 40. It will be appreciated that the air inlet 11, the air heater 150, the blower 60 and the secondary heat exchanger 40 are sequentially connected through the air pipe 160 to form an air flow passage, and the secondary heat exchanger 40 is disposed corresponding to the air outlet 12. When in use, the fan 60 conveys the external air to the air heater 150 through the air inlet 11, the air heater 150 heats the air to a preset constant temperature, the preheated air flows to the fan 60, and the fan 60 blows the preheated air to the secondary heat exchanger 40 in a blowing mode for heat exchange to continue heating.
In other embodiments, the air heater 150, the secondary heat exchanger 40 and the blower 60 are disposed, i.e. the secondary heat exchanger 40 is located between the blower 60 and the air heater 150, the secondary heat exchanger 40 and the blower 60 are sequentially communicated through the air pipe 160 to form an air flow channel. Therefore, the fan 60 conveys the air flow heated by the secondary heat exchanger 40 into a room in a suction type mode, so that the pressure loss of the components forming the air flow channel is effectively reduced, the running noise is reduced, and the fan 60 with lower power can be adapted, and the cost is saved.
The gas heating water heater further comprises an expansion water tank 170, a circulating pump 180 and a gas valve 190, wherein the expansion water tank 170 is connected with a heating return pipe 90, and the heating return pipe 90 is used for relieving the pressure when the gas heating water heater is heated and expanded. The circulation pump 180 is connected to the heating return pipe 90, and the circulation pump 180 is used for transferring the circulation water in the heating return pipe 90 to the main heat exchanger 20. The gas valve 190 is connected to the burner 50, specifically, the gas valve 190 is provided on a pipe connecting a gas inlet of the burner 50, and when the burner 50 is in use, the gas valve 190 is opened, and the gas flows to the burner 50 through the gas valve 190 to be combusted, and when the burner 50 is not in use, the gas valve 190 is closed.
In some embodiments, the bathroom inlet pipe 100 is also connected to the heating return pipe 90, and the gas heating water heater further includes a water replenishment valve 200 connected between the bathroom inlet pipe 100 and the heating return pipe 90. Specifically, the gas heating water heater further comprises a connecting pipe, two ends of the connecting pipe are respectively connected with the bathroom water inlet pipe 100 and the heating water return pipe 90, and the water supplementing valve 200 is arranged on the connecting pipe. When water needs to be added to the heating return pipe 90, the water supplementing valve 200 is opened, external tap water flows into the heating return pipe 90 through the bathroom water inlet pipe 100 and the connecting pipe in sequence, and after water supplementing is finished, the water supplementing valve 200 is closed.
The operation process of the gas heating water heater of the embodiment shown in fig. 1 is as follows:
When the heating function is used, the first switching valve 70 is regulated to be communicated between the first valve port and the second valve port of the first switching valve 70, the first valve port and the third valve port and the second valve port and the third valve port are disconnected, namely, the heat exchange water inlet pipe 120 and the heating hot water pipe 80 are not communicated, meanwhile, the second switching valve 140 is regulated to be communicated between the first interface and the second interface of the second switching valve 140, the first interface and the third interface are disconnected, namely, the water inlet end of the secondary heat exchanger 40 and the heating hot water pipe 80 are not communicated, the high-temperature flue gas generated during the combustion of the burner 50 heats the circulating water flowing through the main heat exchanger 20, the heated circulating water directly flows to an external radiator through the heating hot water pipe 80 for heat exchange, and the circulating water after heat exchange flows back to the main heat exchanger 20 through the heating water return pipe 90 for heating, and is continuously circulated.
When the bathroom function is used, the first switching valve 70 is regulated to be communicated between the first valve port and the third valve port of the first switching valve 70, the first valve port and the second valve port are disconnected from each other, namely, the heat exchange water inlet pipe 120 and the heating hot water pipe 80 are communicated, meanwhile, the second switching valve 140 is regulated to be communicated between the first interface and the third interface, the first interface and the second interface are disconnected from each other, namely, the water inlet end of the secondary heat exchanger 40 and the heating hot water pipe 80 are communicated, the fan 60 is operated, so that external air flows through the air heater 150 firstly to be preheated, the preheated air flows again to the secondary heat exchanger 40, meanwhile, the combustor 50 burns, high-temperature flue gas generated during the combustion of the combustor 50 heats circulating water flowing through the primary heat exchanger 20, the heated circulating water flows through the heating hot water pipe 80 to the secondary heat exchanger 40 to partially heat the heat exchanger 40, the air flows through the secondary heat exchanger 40 to the indoor space, the water flows through the secondary heat exchanger 40 to the bathroom heat exchanger, the water flows through the secondary heat exchanger 100 to the heat exchanger, the circulating water flows through the secondary heat exchanger 30 to the water pipe, and then flows back to the heat exchanger 30 to the water pipe 30 after the heat exchange, and the circulating water flows through the heat exchanger 30 to the heat the circulating water pipe 30 to the water pipe 30.
In the embodiment shown in fig. 2, the secondary heat exchanger 40 is connected between the plate heat exchanger 30 and the sanitary outlet pipe 110. Specifically, the water inlet end of the secondary heat exchanger 40 is connected with the hot water outlet of the plate heat exchanger 30 through a water pipe, and the water outlet end of the secondary heat exchanger 40 is connected with the bathroom water outlet pipe 110.
The operation process of the gas heating water heater of the embodiment shown in fig. 2 is as follows:
When the heating function is used, the first switching valve 70 is regulated to conduct between the first valve port and the second valve port of the first switching valve 70, and disconnect between the first valve port and the third valve port and between the second valve port and the third valve port, namely, the heat exchange water inlet pipe 120 and the heating hot water pipe 80 are not conducted, high-temperature flue gas generated during combustion of the burner 50 heats circulating water flowing through the main heat exchanger 20, the heated circulating water directly flows to an external radiator through the heating hot water pipe 80 for heat exchange, and the circulating water after heat exchange flows back to the main heat exchanger 20 for heating through the heating water return pipe 90, and the circulation is continuously circulated.
When the bathroom function is used, the first switching valve 70 is regulated to be communicated between the first valve port and the third valve port of the first switching valve 70, the first valve port and the second valve port are disconnected from each other, namely, the heat exchange water inlet pipe 120 and the heating hot water pipe 80 are communicated with each other, bathroom water flows into the plate heat exchanger 30 through the bathroom water inlet pipe 100, the fan 60 operates to preheat the outside air flow through the air heater 150, the preheated air flow flows into the secondary heat exchanger 40, meanwhile, the combustor 50 burns, high-temperature flue gas generated during the combustion of the combustor 50 heats circulating water flowing through the main heat exchanger 20, the heated circulating water flows into the plate heat exchanger 30 through the heating hot water pipe 80 to heat the bathroom water flowing through the plate heat exchanger 30, the circulating water after heat exchange in the plate heat exchanger 30 flows back into the main heat exchanger 20 through the heating water return pipe 90, the bathroom water heated through the plate heat exchanger 30 flows into the secondary heat exchanger 40 to perform partial heat exchange, the air flow through the secondary heat exchanger 40 is heated, the fan 60 conveys the air flow through the secondary heat exchanger 40 into the secondary heat exchanger 40 to perform partial heat exchange, and the bathroom water is discharged out of the water outlet pipe 110 for a user to perform heat exchange.
Compared with the prior art, the gas heating water heater has the beneficial effects that if the secondary heat exchanger 40 is connected between the plate heat exchanger 30 and the heating water pipe 80, when the bathroom function is used, the first switching valve 70 is adjusted to enable the plate heat exchanger 30 to be communicated with the heating water pipe 80, heat generated by combustion of the burner 50 heats circulating water flowing through the main heat exchanger 20, the heated circulating water flows to the secondary heat exchanger 40 through the heating water pipe 80 to partially exchange heat so as to heat air flowing through the secondary heat exchanger 40, the fan 60 conveys the air heated by the secondary heat exchanger 40 into a room to heat, the bathroom water flows into the plate heat exchanger 30 through the bathroom water inlet pipe 100, the partially exothermic circulating water flowing through the plate heat exchanger 30 in the secondary heat exchanger 40 is heated, the heated bathroom water is discharged through the bathroom water outlet pipe 110 for a user, and the heat exchanged circulating water flowing through the plate heat exchanger 30 flows back to the main heat exchanger 20 through the heating water return pipe 90. If the secondary heat exchanger 40 is connected between the plate heat exchanger 30 and the bathroom outlet pipe 110, when the bathroom function is used, the first switching valve 70 is adjusted to enable the plate heat exchanger 30 to be communicated with the heating hot water pipe 80, the bathroom water flows into the plate heat exchanger 30 through the bathroom inlet pipe 100, heat generated by combustion of the burner 50 heats circulating water flowing through the main heat exchanger 20, the heated circulating water flows into the plate heat exchanger 30 through the heating hot water pipe 80 for heat exchange so as to heat the bathroom water flowing through the plate heat exchanger 30, the heat exchanged circulating water flows back into the main heat exchanger 20 through the heating return pipe 90, the bathroom water heated by the plate heat exchanger 30 flows into the secondary heat exchanger 40 for partial heat exchange so as to heat the air flow flowing through the secondary heat exchanger 40, the fan 60 conveys the air flow heated by the secondary heat exchanger 40 into a room for heating, and the bathroom water partially exchanged in the secondary heat exchanger 40 is discharged through the bathroom outlet pipe 110 for use by a user. When the bathroom function is used, heating can be performed, the decline of indoor temperature is effectively avoided, the comfort and experience effect of a user are effectively improved, and the physical health of the user is effectively ensured.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
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| CN109028550A (en) * | 2018-08-10 | 2018-12-18 | 万家乐热能科技有限公司 | A kind of gas-heating water heater |
| CN109612104A (en) * | 2018-12-17 | 2019-04-12 | 成都前锋电子有限责任公司 | A kind of warm bath dual-purpose stove of novel low nitrogen condensed type combustion gas |
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