CN216204304U - Gas heating water heater - Google Patents
Gas heating water heater Download PDFInfo
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- CN216204304U CN216204304U CN202122634541.8U CN202122634541U CN216204304U CN 216204304 U CN216204304 U CN 216204304U CN 202122634541 U CN202122634541 U CN 202122634541U CN 216204304 U CN216204304 U CN 216204304U
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Abstract
The utility model relates to a gas heating water heater, comprising: the system 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 water return pipe, a bathroom water inlet pipe and a bathroom water outlet pipe; the main heat exchanger is connected with a heating hot water pipe and a heating water return pipe; the plate type heat exchanger is connected between the heating hot water pipe and the heating water return pipe, and is also connected with a bathroom water inlet pipe and a bathroom water outlet pipe; the secondary heat exchanger is connected between the plate heat exchanger and a heating hot water pipe, or the secondary heat exchanger is connected between the plate heat exchanger and a bathroom water outlet pipe; the combustor 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. The realization also can heat when using the bathroom function, effectively avoids appearing descending because of indoor temperature, effectively promotes user's travelling comfort and experience effect, effectively guarantees that user's is healthy.
Description
Technical Field
The utility model relates to the technical field of household heating equipment, in particular to a gas heating water heater.
Background
Along with the continuous improvement of people's standard of living, people also more and more high to the room heating comfort level requirement, people generally adopt gas heating water heater to realize heating function and bathroom function.
When traditional gas heating water heater was heated, the produced high temperature flue gas of combustor burning passed through the water heating of main heat exchanger in with the system, and the water of heating flows through the radiator of installing indoor under the circulating pump drive to give off the heat through the radiator to indoor, make the room temperature rise, reach the purpose of heating, the bathroom function is in the off-state this moment. When the user needs to use the bathroom function, the internal circulation hot water of system carries out isolated heat transfer through plate heat exchanger and bathroom water, and the bathroom water after the heating flows out hot water from the sanitary hot water export, but circulation hot water can not flow through the radiator of installing indoor and give off heat to indoor, causes indoor temperature to descend, influences the user at indoor comfort level, leads to the user to catch a cold easily, endangers user's healthy.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a gas heating water heater which can supply heat when a bathroom function is used.
The technical problem is solved by the following technical scheme:
a gas-fired heating water heater comprising: the system 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 water return pipe, a bathroom water inlet pipe and a bathroom water outlet pipe; the main heat exchanger is connected with the heating hot water pipe and the heating water return pipe; the plate type heat exchanger is connected between the heating hot water pipe and the heating water 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 the secondary heat exchanger is connected between the plate heat exchanger and the bathroom water outlet pipe; the combustor 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.
Compared with the background technology, the gas heating water heater of the utility model has the following beneficial effects: when the bathroom function is used, the first switching valve is adjusted, the plate heat exchanger is conducted with the heating hot water pipe, the circulating water flowing through the main heat exchanger is heated by heat generated by combustion of the burner, the heated circulating water flows to the secondary heat exchanger through the heating hot water pipe to perform partial heat exchange, airflow flowing through the secondary heat exchanger is heated by the fan, the airflow heated by the secondary heat exchanger is conveyed to the indoor space to be heated, bathroom water flows into the plate heat exchanger through the bathroom water inlet pipe, the circulating water after partial heat release flows into the plate heat exchanger in the secondary heat exchanger to heat the bathroom water flowing through the plate heat exchanger, and the heated bathroom water is discharged through the water outlet pipe to be used by a user. The realization also can heat when using the bathroom function, effectively avoids appearing descending because of indoor temperature, effectively promotes user's travelling comfort and experience effect, effectively guarantees that user's is healthy.
In one embodiment, the first switching valve is a three-way valve, the first switching valve has a first port, a second port and a third port, the first port and the second port are both connected with a heating hot water pipe, and the third port is connected with a heat exchange water inlet of the plate heat exchanger; when the heating function is used, the first valve port is communicated with the second valve port; when the sanitary ware is used, the first valve port is communicated with the third valve port.
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 located between the water outlet end of the secondary heat exchanger and the plate heat exchanger; the gas heating water heater 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 located on the upstream of the first switching valve along the flowing 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 has a first port, a second port and a third port, the first port and the second port are both connected to the heating hot water pipe, and the third port is connected to the water inlet end of the secondary heat exchanger; when the heating function is used, the first interface is communicated with the second interface; when the bathroom function is used, the first interface and the third interface are conducted.
In one embodiment, an air heater is 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 arranged in sequence, and the air heater, the fan and the secondary heat exchanger are communicated in sequence through an air pipe 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 an air pipe to form an airflow channel.
In one embodiment, the heating water return system further comprises an expansion water tank, and the expansion water tank is connected with the heating water return pipe.
In one embodiment, the heating water recycling system further comprises a circulating pump, and the circulating pump is connected with the heating water recycling pipe.
In one embodiment, the gas 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 water return pipe, and the gas-fired heating water heater further comprises a water replenishing valve connected between the bathroom water inlet pipe and the heating water return pipe.
Drawings
Fig. 1 is a schematic structural view of a gas-fired heating water heater according to an embodiment of the present invention;
fig. 2 is a schematic structural view of a gas-fired heating water heater according to another embodiment of the present invention;
the meaning of the reference symbols in the drawings is:
the air conditioner 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 combustor 50, a fan 60, a first switching valve 70, a heating hot water pipe 80, a heating water return 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 water tank 170, a circulating pump 180, a gas valve 190 and a water replenishing valve 200.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" 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 as used herein are for illustrative purposes only and do not denote a unique embodiment.
Referring to fig. 1, a gas heating water heater according to an embodiment of the present 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 water pipe 80, a heating water return pipe 90, a bathroom water inlet pipe 100, and a bathroom water outlet pipe 110. The primary heat exchanger 20, the plate heat exchanger 30, the secondary heat exchanger 40, the burner 50, the fan 60, and the first switching valve 70 are disposed in the casing 10. The main heat exchanger 20 is connected to a heating hot water pipe 80 and a heating return water pipe 90. The plate heat exchanger 30 is connected between the heating hot water pipe 80 and the heating return water pipe 90, and the plate heat exchanger 30 is connected to a sanitary water inlet pipe 100 and a sanitary 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 fan 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 that are communicated with each other. Further, the main heat exchanger 20 includes a main fin group and a main heat exchange tube penetrating through 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 a heating water outlet and a heating water inlet. One end of the heating hot water pipe 80 is connected to a heating water outlet of the main heat exchanger 20, and the other end of the heating hot water pipe 80 is used for connecting an external radiator. One end of the heating water return pipe 90 is connected to a heating water inlet of the main heat exchanger 20, and the other end of the heating water return pipe 90 is used for connecting a radiator. It can be understood that the combustor 50 combusts the gas to generate high-temperature flue gas, the heat in the high-temperature flue gas is transferred to the main fin group and then transferred into the main heat exchange pipe through the main fin group to heat the circulating water flowing through the main heat exchange pipe, the heated circulating water is sequentially discharged through the heating water outlet of the main heat exchanger 20 and the heating hot water pipe 80, and the circulating water after heat exchange sequentially flows back into the main heat exchange pipe through the heating water return pipe 90 and the heating water inlet of the main heat exchanger 20.
The plate heat exchanger 30 has a heat exchange water inlet and a heat exchange water outlet which are communicated with each other, and a cold water inlet and a hot water outlet which are communicated with each other, the gas heating water heater further includes a heat exchange water inlet pipe 120 and a heat exchange water outlet pipe 130, both ends of the heat exchange water inlet pipe 120 are respectively connected with the heat exchange water inlet of the plate heat exchanger 30 and the heating hot water pipe 80, and both ends of the heat exchange water outlet pipe 130 are respectively connected with the heat exchange water outlet of the plate heat exchanger 30 and the heating water return pipe 90. 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 connecting 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 connecting bathroom equipment. It can be understood that, when the bathroom function is used, 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, 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 flowing through the plate heat exchanger 30, the heated bathroom water is sequentially discharged 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 water return pipe 90 through the heat exchange water outlet and the heat exchange water outlet pipe 130 of the plate heat exchanger 30.
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 through the secondary fin group, the secondary heat exchange tube is in a zigzag shape, and two ends of the secondary heat exchange tube are respectively a water inlet end and a water outlet end. In this embodiment, the water inlet end and the water outlet end of the secondary heat exchanger 40 are 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 to the heating hot water pipe 80, the third valve port is connected to the heat exchange water inlet of the plate heat exchanger 30, and further, the third valve port is connected to the hot water inlet through the heat exchange water inlet pipe 120, that is, the third valve port is connected to one end of the heat exchange water inlet pipe 120, which is far away from the heat exchange water inlet. When the heating function is used, the first valve port and the second valve port are communicated, and the circulating water in the heating hot water pipe 80 sequentially flows through the first valve port and the second valve port of the first switching valve 70; when the bathroom function is used, the first valve port and the third valve port are communicated, and 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 in 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, and the second switching valve 140 has a first port, a second port and a third port, the first port and the second port are both connected to the heating hot water pipe 80, and the third port is connected to the water inlet end of the secondary heat exchanger 40. When the heating function is used, the first interface and the second interface are communicated, and the circulating water in the heating hot water pipe 80 sequentially flows through the first interface and the second interface of the second switching valve 140; when the bathroom function is used, the first port and the third port are connected, and the circulating water in the heating hot water pipe 80 sequentially flows through the first port and the third port of the second switching valve 140.
In some embodiments, the gas-fired water heater further includes an air heater 150, and the air heater 150 is used to preheat the air flow flowing to the secondary heat exchanger 40. It will be appreciated that the air heater 150 first preheats the air flow to a predetermined temperature, and the air flow preheated to the predetermined temperature is passed to the secondary heat exchanger 40 to continue heating. Because the difference between the temperature of the outdoor cold air and the temperature of the hot water in the secondary heat exchanger 40 is large, the air heater 150 is arranged to preheat the air 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 directly exchanges heat with the hot water flowing through the secondary heat exchanger 40 is effectively avoided, and the temperature of the hot water in the bathroom is too low to meet the temperature requirement of the bathroom. In addition, the phenomenon that the outdoor cold air flow directly exchanges heat with hot water to generate a large amount of condensed water which is accumulated in the shell 10 to damage devices of the shell 10 or directly drops indoors to influence the use experience of a user can be effectively avoided.
The air heater 150, the fan 60 and the secondary heat exchanger 40 are sequentially arranged, that is, the air heater 150 is located on one side of the fan 60, which is far away from the secondary heat exchanger 40, 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 disposed 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 is understood that the air inlet 11, 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 passage, and the secondary heat exchanger 40 is disposed corresponding to the air outlet 12. When the air heating device is used, the fan 60 conveys outside air into 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 into the fan 60, and the fan 60 blows the preheated air to the secondary heat exchanger 40 in a blowing mode to perform heat exchange and continue heating.
In other embodiments, the air heater 150, the secondary heat exchanger 40 and the fan 60 are disposed such that the secondary heat exchanger 40 is located between the fan 60 and the air heater 150, the secondary heat exchanger 40 and the fan 60 are sequentially communicated through the air pipe 160 to form an air flow passage. Thereby fan 60 will be through the air current of inferior heat exchanger 40 heating carry to indoor with the mode of drawing the formula of inhaling, effectively reduce the pressure loss to the component air current passageway part, reduce the running noise, can adapt lower power's fan 60, practice thrift the cost.
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 water return pipe 90, and the heating water return pipe 90 is used for relieving the pressure of the gas heating water heater during heating expansion. The circulation pump 180 is connected to the heating return pipe 90, and the circulation pump 180 is used to transfer the circulating water in the heating return pipe 90 to the main heat exchanger 20. The gas valve 190 is connected with the burner 50, specifically, the gas valve 190 is arranged on a pipeline connected with a gas inlet of the burner 50, when the burner 50 is used, the gas valve 190 is opened, and gas flows to the burner 50 through the gas valve 190 for combustion; when the burner 50 is not in use, the gas valve 190 is closed.
In some embodiments, the bathroom water inlet pipe 100 is further connected to the heating water return pipe 90, and the gas heating water heater further includes a water replenishing valve 200 connected between the bathroom water inlet pipe 100 and the heating water 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 replenishing valve 200 is arranged on the connecting pipe. When water needs to be added into the heating water return pipe 90, the water supplementing valve 200 is opened, external tap water flows into the heating water 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 adjusted to enable the first valve port and the second valve port of the first switching valve 70 to be communicated, 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 adjusted to enable the first interface and the second interface of the second switching valve 140 to be connected, and the first interface and the third interface, and the second interface and the third interface to be disconnected, that is, the water inlet end of the secondary heat exchanger 40 is not connected to the heating hot water pipe 80; the high-temperature flue gas generated by the burner 50 during combustion 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 thus continuously circulates.
When the bathroom function is used, the first switching valve 70 is adjusted to enable the first valve port and the third valve port of the first switching valve 70 to be communicated, the first valve port and the second valve port are disconnected, and the second valve port and the third valve port are disconnected, namely the heat exchange water inlet pipe 120 is communicated with the heating hot water pipe 80; meanwhile, the second switching valve 140 is adjusted to connect the first port and the third port, and the first port and the second port, and the second port and the third port are disconnected, that is, the water inlet end of the secondary heat exchanger 40 is connected to the heating hot water pipe 80; fan 60 operates to make the external air current flow through air heater 150 earlier and preheat, the air current after preheating flows to inferior heat exchanger 40 again, and simultaneously, combustor 50 burns, the high temperature flue gas that produces when combustor 50 burns heats the circulating water of main heat exchanger 20 of flowing through, the circulating water after the heating flows to inferior heat exchanger 40 through heating hot-water line 80 and carries out partial heat transfer, heat with the air current to the inferior heat exchanger 40 of flowing through, the air current flow direction after inferior heat exchanger 40 heats indoor heating: the bathroom water flows into the plate heat exchanger 30 through the bathroom water inlet pipe 100, the circulating water after partial heat exchange in the secondary heat exchanger 40 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 bathroom water heated in the plate heat exchanger 30 flows through the bathroom water outlet pipe 110 to be discharged for users, and the circulating water after heat exchange in the plate heat exchanger 30 flows back to the main heat exchanger 20 through the heating water return pipe 90 to be heated, and thus the circulating water is continuously circulated.
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 to 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 to 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 adjusted to enable the first valve port and the second valve port of the first switching valve 70 to be communicated, 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; the high-temperature flue gas generated by the burner 50 during combustion 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 thus continuously circulates.
When the bathroom function is used, the first switching valve 70 is adjusted to enable the first valve port and the third valve port of the first switching valve 70 to be communicated, the first valve port and the second valve port are disconnected, and the second valve port and the third valve port are disconnected, namely the heat exchange water inlet pipe 120 is communicated with the heating hot water pipe 80; the bath water flows into the plate heat exchanger 30 through the bath inlet pipe 100, the fan 60 is operated, so that the external air flow passes through the air heater 150 for preheating, the preheated air flow flows to the secondary heat exchanger 40 again, meanwhile, the burner 50 is burned, the high temperature flue gas generated when the burner 50 is burned heats the 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 circulating water after heat exchange in the plate heat exchanger 30 flows back to the main heat exchanger 20 through the heating return water pipe 90, and the bathroom water heated by the plate heat exchanger 30 flows to the secondary heat exchanger 40 for partial heat exchange, to heat the air flow passing through the secondary heat exchanger 40, the blower 60 delivers the air flow heated by the secondary heat exchanger 40 to the room for heating, the bathroom water after partial heat exchange in the secondary heat exchanger 40 is discharged through the bathroom water outlet pipe 110 for users to use.
Compared with the background technology, the gas heating water heater of the utility model has the following beneficial effects: if the sub-heat exchanger 40 is connected between the plate-type heat exchanger 30 and the heating hot water pipe 80, when the bathroom function is used, the first switching valve 70 is adjusted to conduct the plate heat exchanger 30 and the heating hot water pipe 80, the circulating water flowing through the main heat exchanger 20 is heated by the heat generated by the combustion of the burner 50, the heated circulating water flows to the secondary heat exchanger 40 through the heating hot water pipe 80 for partial heat exchange, to heat the air flowing through the secondary heat exchanger 40, the fan 60 delivers the air heated by the secondary heat exchanger 40 to the room for heating, the bathroom water flows into the plate heat exchanger 30 through the bathroom inlet pipe 100, the circulating water after partial heat release in the secondary heat exchanger 40 flows into the plate heat exchanger 30 to heat the bathroom water flowing through the plate heat exchanger 30, the heated bathroom water is discharged through the bathroom water outlet pipe 110 for users to use, and the circulating water after heat exchange in the plate heat exchanger 30 flows back to the main heat exchanger 20 through the heating return pipe 90. If the secondary heat exchanger 40 is connected between the plate heat exchanger 30 and the outlet pipe 110 of the bathroom, when the bathroom function is used, the first switching valve 70 is adjusted to conduct the plate heat exchanger 30 and the heating hot water pipe 80, the bath water flows into the plate heat exchanger 30 through the bath inlet pipe 100, the heat generated by the combustion of the burner 50 heats the 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 exchange heat, so as to heat the water for bathroom flowing through the plate heat exchanger 30, the circulating water after heat exchange flows back to the main heat exchanger 20 through the heating water return pipe 90, and the bathroom water heated by the plate heat exchanger 30 flows to the secondary heat exchanger 40 for partial heat exchange, to heat the air flow passing through the secondary heat exchanger 40, the blower 60 delivers the air flow heated by the secondary heat exchanger 40 to the room for heating, the bathroom water after partial heat exchange in the secondary heat exchanger 40 is discharged through the bathroom water outlet pipe 110 for users to use. The realization also can heat when using the bathroom function, effectively avoids appearing descending because of indoor temperature, effectively promotes user's travelling comfort and experience effect, effectively guarantees that user's is healthy.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A gas heating water heater, characterized by that includes: the heating system comprises a main heat exchanger (20), a plate type heat exchanger (30), a secondary heat exchanger (40), a combustor (50), a fan (60), a first switching valve (70), a heating hot water pipe (80), a heating water return pipe (90), a bathroom water inlet pipe (100) and a bathroom water outlet pipe (110); the main heat exchanger (20) is connected with the heating hot water pipe (80) and the heating water return pipe (90); the plate-type heat exchanger (30) is connected between the heating hot water pipe (80) and the heating water return pipe (90), and the plate-type heat exchanger (30) is also 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), or the secondary heat exchanger (40) is connected between the plate heat exchanger (30) and the bathroom outlet pipe (110); the burner (50) is arranged corresponding to the main heat exchanger (20), and the fan (60) is arranged corresponding to the secondary heat exchanger (40); the first switching valve (70) is connected between the plate heat exchanger (30) and the heating hot water pipe (80).
2. The gas-fired heating water heater according to claim 1, wherein the first switching valve (70) is a three-way valve, the first switching valve (70) has a first port, a second port and a third port, the first port and the second port are connected with a heating water pipe (80), and the third port is connected with a heat exchange water inlet of the plate-type heat exchanger (30); when the heating function is used, the first valve port is communicated with the second valve port; when the sanitary ware is used, the first valve port is communicated with the third valve port.
3. The gas-fired heating water heater according to claim 1, wherein the first switching valve (70) is located between a water outlet end of the secondary heat exchanger (40) and the plate heat exchanger (30) when the secondary heat exchanger (40) is connected between the plate heat exchanger (30) and the heating water heating pipe (80); the gas-fired heating water heater further comprises 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 at the upstream of the first switching valve (70) along the flowing direction of circulating water in the heating hot water pipe (80).
4. The gas-fired heating water heater according to claim 3, wherein the second switching valve (140) is a three-way valve, the second switching valve (140) has a first port, a second port and a third port, the first port and the second port are connected to the heating water pipe (80), and the third port is connected to the water inlet end of the secondary heat exchanger (40); when the heating function is used, the first interface is communicated with the second interface; when the bathroom function is used, the first interface and the third interface are conducted.
5. The gas-fired heating water heater according to claim 1, further comprising an air heater (150) for preheating the air flow flowing to the secondary heat exchanger (40).
6. The gas-fired heating water heater according to claim 5, wherein the air heater (150), the fan (60) and the secondary heat exchanger (40) are sequentially arranged, and the air heater (150), the fan (60) and the secondary heat exchanger (40) are sequentially communicated through an air pipe to form an air flow channel; or, the air heater (150), the secondary heat exchanger (40) and the fan (60) are sequentially arranged, and the air heater (150), the secondary heat exchanger (40) and the fan (60) are sequentially communicated through an air pipe to form an air flow channel.
7. The gas-fired heating water heater according to claim 1, further comprising an expansion tank (170), the expansion tank (170) being connected to the heating water return pipe (90).
8. The gas-fired heating water heater according to claim 1, further comprising a circulation pump (180), the circulation pump (180) being connected to the heating return pipe (90).
9. The gas-fired heating water heater according to claim 1, further comprising a gas valve (190), the gas valve (190) being connected with the burner (50).
10. The gas-fired heating water heater according to claim 1, wherein the bathroom water inlet pipe (100) is further connected to the heating water return pipe (90), and the gas-fired heating water heater further comprises a water replenishing valve (200) connected between the bathroom water inlet pipe (100) and the heating water return pipe (90).
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| CN202122634541.8U CN216204304U (en) | 2021-10-29 | 2021-10-29 | Gas heating water heater |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113899072A (en) * | 2021-10-29 | 2022-01-07 | 广东万和热能科技有限公司 | Gas heating water heater |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113899072A (en) * | 2021-10-29 | 2022-01-07 | 广东万和热能科技有限公司 | Gas heating water heater |
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