CN214949847U - High-load regulation ratio gas heating water heater - Google Patents
High-load regulation ratio gas heating water heater Download PDFInfo
- Publication number
- CN214949847U CN214949847U CN202022568825.7U CN202022568825U CN214949847U CN 214949847 U CN214949847 U CN 214949847U CN 202022568825 U CN202022568825 U CN 202022568825U CN 214949847 U CN214949847 U CN 214949847U
- Authority
- CN
- China
- Prior art keywords
- water
- heat exchanger
- gas
- heating
- auxiliary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses a high load regulation ratio gas heating water heater, which comprises a water heater body, a combustion system, a smoke exhaust system, a domestic water system and a heating system; the combustion system is arranged in the water heater body and comprises a main combustion chamber and an auxiliary combustion chamber, a main burner is arranged in the main combustion chamber, a sectional isolating valve is arranged in the main burner, a main heat exchanger is arranged above the main burner, a main heat exchanger inlet is arranged on one side of the main heat exchanger, and a main heat exchanger outlet is arranged on the other side of the main heat exchanger; the auxiliary combustor is arranged in the auxiliary combustion chamber, the auxiliary heat exchanger is arranged above the auxiliary combustor, an auxiliary heat exchanger water inlet is formed in one side of the auxiliary heat exchanger, and an auxiliary heat exchanger outlet is formed in the other side of the auxiliary heat exchanger. The beneficial effects are that: when the heat load is not enough, the auxiliary burner is opened, and the main combustion chamber and the auxiliary combustion chamber work simultaneously, so that a larger load regulation ratio is realized.
Description
Technical Field
The utility model relates to a gas heating water heater technical field, especially a high load turndown ratio gas heating water heater.
Background
The gas heating water heater has a history of many years in Europe, the technology of the gas heating water heater is very mature, the gas heating water heater has gone through more than ten years in China and has gained vigorous development, and many families begin to select the gas heating water heater as a heat source, particularly in the field of household heating; the gas heating water heater has the invisible function, and like floor heating and heating sheets which are frequently contacted by people, the heat source equipment of the gas heating water heater is the gas heating water heater.
At present, most of gas heating water heaters are a combustion system and a heat exchange system, so that the heat exchange amount per unit area of a heat exchanger is reduced (the heat exchange capacity of the heat exchanger is excessive) when the load is small, the heat exchanger can generate local condensation, and the acid condensate water of the heat exchanger is corroded; therefore, the load regulation ratio is not high (compared with a gas instantaneous water heater), even if the load regulation ratio is high, the load regulation ratio can only be set in a domestic hot water state, but not in a heating state, and otherwise, the corrosion of the acid condensate water of the heat exchanger can be caused.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings, an object of the present invention is to provide a stable output load regulation ratio and a gas heating water heater with two sets of independent combustion chambers.
To achieve the purpose, the utility model adopts the following technical proposal:
a high load regulation ratio gas heating water heater comprises a water heater body, a combustion system, a smoke exhaust system, a domestic water system and a heating system;
the combustion system is arranged in the water heater body, the top of the water heater body is provided with an air inlet, the smoke exhaust system is arranged above the combustion system, and the domestic water system and the heating system are arranged below the combustion system;
the combustion system comprises a main combustion chamber and an auxiliary combustion chamber, wherein a main burner is arranged in the main combustion chamber, a sectional partition plate is arranged in the main burner, an ignition needle of the main burner and a flame feedback needle of the main burner are arranged above the surface of a fire hole of the main burner, a main heat exchanger is arranged above the main burner, a main heat exchanger inlet is arranged at one side of the main heat exchanger, and a main heat exchanger outlet is arranged at the other side of the main heat exchanger;
the auxiliary combustor is arranged in the auxiliary combustion chamber, an ignition needle of the auxiliary combustor and a flame feedback needle of the auxiliary combustor are arranged above the surface of a fire hole of the auxiliary combustor, an auxiliary heat exchanger is arranged above the auxiliary combustor, an auxiliary heat exchanger water inlet is arranged on one side of the auxiliary heat exchanger, and an auxiliary heat exchanger outlet is arranged on the other side of the auxiliary heat exchanger.
Preferably, the domestic water system comprises a gas component;
the gas component comprises a gas inlet, a gas connecting pipe, a gas proportional valve, a first gas sectional switch valve, a second gas sectional switch valve, a gas inlet pipe and a gas branch pipe;
the head end of the gas connecting pipe is connected with the gas inlet, and the tail end of the gas connecting pipe is connected with the auxiliary burner;
the gas connecting pipe is provided with the gas proportional valve near the head end thereof, and the gas connecting pipe is provided with the second gas sectional switch valve near the tail end thereof;
one end of the gas inlet pipe is connected with the gas connecting pipe, and the other end of the gas inlet pipe is connected with the main burner; the head end of the gas branch pipe is connected with the gas inlet pipe, and the tail end of the gas branch pipe is connected with the main burner;
the gas branch pipe is provided with the first gas section switch valve near the tail end of the gas branch pipe.
Preferably, in the above high load regulation ratio gas-fired heating water heater, the heating system includes a heat exchanger, a first three-way valve, a heating connecting pipe, a heating water outlet, an electric heater and a heating hot water collecting pipe;
the electric heater is arranged at the position, close to the head end, of the heating connecting pipe; the first three-way valve is respectively provided with a water inlet end, a first water outlet end and a second water outlet end, the second water outlet end of the first three-way valve is connected with the heat exchanger, the first water outlet end of the first three-way valve is connected with the tail end of the heating connecting pipe, the head end of the heating connecting pipe is connected with the heating water outlet, the water inlet end of the first three-way valve is connected with one end of the heating hot water collecting pipe, and the other end of the heating hot water collecting pipe is connected with the water outlet of the auxiliary heat exchanger and the water outlet of the main heat exchanger; the domestic water system is connected with the heat exchanger.
Preferably, the heating system of the high load regulation ratio gas-fired heating water heater further comprises a heating water return part, a first branch pipe, a second three-way valve, a circulating water pump and an expansion water tank, wherein the expansion water tank is connected with the heating water return part;
the second three-way valve is respectively provided with a water inlet end, a connector of a main heat exchanger of the second three-way valve and a connector of an auxiliary heat exchanger of the second three-way valve, the water inlet end of the second three-way valve is connected with the water outlet of the circulating water pump, the connector of the main heat exchanger of the second three-way valve is connected with the inlet of the main heat exchanger, and the connector of the auxiliary heat exchanger of the second three-way valve is connected with the water inlet of the auxiliary heat exchanger;
one end of the first branch pipe is connected with the heat exchanger, the other end of the first branch pipe is connected with the heating water return piece, and the circulating water pump is arranged at the position, close to the tail end, of the heating water return piece.
Preferably, in the high load regulation ratio gas heating water heater, the heating water return part comprises a heating water return port, a water return connecting pipe, a pressure release valve and an inlet temperature sensor;
the head end of the backwater connecting pipe is connected with the heating backwater port, the tail end of the backwater connecting pipe is connected with the water inlet of the circulating water pump, and the inlet temperature sensor is arranged at the position, close to the tail end, of the backwater connecting pipe; the return water connecting pipe is provided with the pressure release valve near the head end of the return water connecting pipe.
Preferably, the domestic water system of the high load regulation ratio gas heating water heater further comprises a domestic hot water component and a tap water component;
the domestic hot water assembly comprises a domestic hot water outlet and a domestic hot water connecting pipe, one end of the domestic hot water connecting pipe is connected with the domestic hot water outlet, and the other end of the domestic hot water connecting pipe is connected with the heat exchanger;
the tap water assembly comprises a tap water inlet and a tap water connecting pipe, the head end of the tap water connecting pipe is connected with the tap water inlet, and the tail end of the tap water connecting pipe is connected with the heat exchanger.
Preferably, the above high load regulation ratio gas heating water heater, the smoke exhaust system comprises a fan, a main smoke collecting hood and an auxiliary smoke collecting hood;
the main smoke collecting hood is arranged at the top of the main combustion chamber and the main heat exchanger and is provided with a main smoke collecting and exhausting outlet which is connected with the inlet end of the fan;
the auxiliary smoke collecting hood is arranged at the top of the auxiliary combustion chamber and is provided with an auxiliary smoke exhaust outlet, the auxiliary smoke exhaust outlet is connected with the inlet end of the fan, an air volume adjusting valve is arranged at the exhaust outlet end of the auxiliary smoke collecting hood and is located at the exhaust outlet end of the fan, and a heating furnace exhaust port is arranged at the exhaust outlet end of the fan.
Preferably, in the high load regulation ratio gas-fired heating water heater, the heat exchanger is plate-shaped, and the heat exchanger is provided with a heating water inlet, a heating water outlet, a tap water inlet and a domestic hot water outlet respectively;
the second water outlet end of the first three-way valve is connected with the heating water inlet;
the heating water outlet is connected with the first branch pipe, and the heating water outlet is connected with the return water connecting pipe through the first branch pipe;
the tap water inlet is connected with the tap water connecting pipe;
the domestic hot water outlet is connected with the domestic hot water connecting pipe.
Preferably, the high load regulation ratio gas-fired heating water heater is provided with an outlet water temperature sensor at a convergence position between the outlet of the main heat exchanger and the outlet of the auxiliary heat exchanger.
Preferably, in the above-mentioned high load regulation ratio gas-fired heating water heater, the heating return water member further includes a bypass valve, an outlet end of the bypass valve is communicated with the return water connecting pipe, and an inlet end of the bypass valve is communicated with the heating connecting pipe.
The utility model has the advantages that:
(1) the main combustion chamber and the auxiliary combustion chamber are arranged, so that flames of the two independent combustion chambers cannot influence each other, and the two combustion chambers are subjected to associated control in an electric control connection mode, so that the two combustion chambers can operate simultaneously.
(2) The combustor of main combustion chamber sets up segmentation baffle and first gas segmentation ooff valve to make the combustor can the segmentation burning, the auxiliary combustion ware is provided with first gas segmentation ooff valve, arranges the burning (no segmentation baffle), the during operation for full fire: the normally-open section of the main burner is ignited for combustion, and when the heat load is insufficient, a first gas subsection switch valve of the main burner is opened to realize full-fire-row combustion; when the heat load is not enough, closing the first gas sectional switch valve of the main burner and opening the second gas sectional switch valve of the auxiliary burner (the auxiliary burner 14 burns); when the heat load is not enough, the first gas subsection switch valve of the main burner is opened, the main burner 36 and the auxiliary burner 14 are simultaneously burnt, and the main burner 35 and the auxiliary burner 15 simultaneously work, so that a larger load regulation ratio is realized.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an embodiment of the present invention.
Wherein: comprises a hot water furnace body 1a, a heating water outlet 1, a domestic hot water outlet 2, a tap water inlet 3, a fuel gas inlet 4, a heating water return port 5, a bypass valve 6, a pressure release valve 7, an inlet temperature sensor 8, a circulating water pump 9, an expansion water tank 10, a fuel gas proportional valve 11, a second three-way valve 12, a second fuel gas sectional switch valve 13, an auxiliary burner 14, an auxiliary combustion chamber 15, a heating connecting pipe 16, an auxiliary heat exchanger outlet 17, an auxiliary heat exchanger 18, an auxiliary heat exchanger water inlet 19, a water return connecting pipe 20, an auxiliary smoke collecting hood 21, an air quantity adjusting valve 22, an auxiliary smoke exhaust outlet 23, a driver 24, a heating furnace smoke exhaust port 25, a domestic hot water connecting pipe 26, a water outlet temperature sensor 27, a main smoke collecting hood 28, a main smoke exhaust outlet 29, a main heat exchanger inlet 30, a main heat exchanger 31, a main heat exchanger outlet 32, a first branch pipe 33, a tap water connecting pipe 34, a water inlet connecting pipe 6, a water outlet, a heat exchanger, a water outlet, a heat exchanger, a water outlet, a heat exchanger, The gas-fired boiler comprises a main combustion chamber 35, a main burner 36, a sectional partition 37, a first gas sectional switch valve 38, a gas connecting pipe 39, a first three-way valve 40, a pressure switch 41, a heat exchanger 42, a gas inlet pipe 43, a gas branch pipe 44, an air inlet 45, an electric heater 46, a heating water inlet 421, a heating water outlet 422, a tap water inlet 423, a domestic hot water outlet 424 and a heating hot water collecting pipe 425.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, "a plurality" means two or more unless otherwise specified.
As shown in fig. 1 to 2, a high load regulation ratio gas heating water heater includes a water heater body 1a, a combustion system, a smoke exhaust system, a domestic water system and a heating system;
the combustion system is arranged in the water heater body 1a, the top of the water heater body 1a is provided with an air inlet 45, the smoke exhaust system is arranged above the combustion system, and the domestic water system and the heating system are arranged below the combustion system;
the combustion system comprises a main combustion chamber 35 and an auxiliary combustion chamber 15, a main burner 36 is arranged in the main combustion chamber 35, a sectional partition plate 37 is arranged in the main burner 36, an ignition needle of the main burner 36 and a flame feedback needle of the main burner 36 are arranged above the surface of a fire hole of the main burner 36, and the ignition needle of the main burner 36 is controlled by electric control to ignite and control whether the flame feedback needle of the main burner 36 detects that flame exists; a main heat exchanger 31 is arranged above the main combustor 36, a main heat exchanger inlet 30 is arranged on one side of the main heat exchanger 31, and a main heat exchanger outlet 32 is arranged on the other side of the main heat exchanger 31;
the auxiliary burner 14 is arranged in the auxiliary combustion chamber 15, an ignition needle of the auxiliary burner 14 and a flame feedback needle of the auxiliary burner 14 are arranged above the surface of a fire hole of the auxiliary burner 14, and the ignition needle of the auxiliary burner 14 is controlled to be ignited by electric control and whether the flame feedback needle of the auxiliary burner 14 detects that flame exists or not is controlled; an auxiliary heat exchanger 18 is arranged above the auxiliary burner 14, an auxiliary heat exchanger water inlet 19 is arranged on one side of the auxiliary heat exchanger 18, and an auxiliary heat exchanger outlet 17 is arranged on the other side of the auxiliary heat exchanger 18; the main combustion chamber 35 and the auxiliary combustion chamber 15 are arranged, so that flames of the two independent combustion chambers cannot influence each other, and the two combustion chambers are subjected to associated control in an electric control connection mode, so that the two combustion chambers can operate simultaneously; the combustor of main combustion chamber 35 sets up segmentation baffle 37 to make the combustor can the segmentation burning, auxiliary combustion chamber 15 is the burning of arranging for full fire (no segmentation baffle), the during operation: the normally open section of the main burner 36 is ignited for combustion, and when the heat load is insufficient, the first gas subsection switching valve of the main burner 36 is opened to realize full-fire-row combustion; when the heat load is not enough, closing the first gas sectional switch valve of the main burner and opening the second gas sectional switch valve of the auxiliary burner (the auxiliary burner 14 burns); when the heat load is not enough, the first gas subsection switch valve of the main burner is opened, the main burner 36 and the auxiliary burner 14 are simultaneously burnt, and the main burner 35 and the auxiliary burner 15 simultaneously work, so that a larger load regulation ratio is realized. Note that the main combustor 36 is a staged combustor.
The high duty turndown ratio gas-fired heating water heater in some embodiments, wherein the domestic water system comprises a gas fired component;
the gas component comprises a gas inlet 4, a gas connecting pipe 39, a gas proportional valve 11, a first gas sectional switch valve 38, a second gas sectional switch valve 13, a gas inlet pipe 43 and a gas branch pipe 44;
the head end of the gas connecting pipe 39 is connected with the gas inlet 4, and the tail end of the gas connecting pipe 39 is connected with the auxiliary burner 14;
the gas connecting pipe 39 is provided with a gas proportional valve 11 near the head end thereof, and the gas connecting pipe 39 is provided with a second gas sectional switch valve 38 near the tail end thereof;
one end of the gas inlet pipe 43 is connected with the gas connecting pipe 39, and the other end of the gas inlet pipe 43 is connected with the main burner 36; the head end of the gas branch pipe 44 is connected with the gas inlet pipe 43, and the tail end of the gas branch pipe 44 is connected with the main burner 36; the gas branch pipe 44 is provided with a first gas section switch valve 13 near the tail end thereof; wherein the domestic water system also comprises a domestic hot water component and a tap water component; the domestic hot water assembly comprises a domestic hot water outlet 2 and a domestic hot water connecting pipe 26, one end of the domestic hot water connecting pipe 26 is connected with the domestic hot water outlet 2, and the other end of the domestic hot water connecting pipe 26 is connected with the heat exchanger 42; the tap water assembly comprises a tap water inlet 3 and a tap water connecting pipe 34, the head end of the tap water connecting pipe 34 is connected with the tap water inlet 3, and the tail end of the tap water connecting pipe 34 is connected with the heat exchanger 42; the design ensures that the high-load regulation ratio gas heating water heater can stably work under the high-load regulation ratio no matter the high-load regulation ratio gas heating water heater is in a heating state or a domestic hot water state, so that the low-load energy-saving operation under the heating state is realized, and the high-load regulation ratio gas heating water heater can realize 4 combustion subsections due to the arrangement of the first gas subsection switch valve 38 and the second gas subsection switch valve 13; in addition, at least 1 switching valve (functioning to close and open the gas passage) and 1 gas flow control valve are disposed inside the gas proportional valve.
It is worth mentioning that the heating system includes a heat exchanger 42, a first three-way valve 40, a heating connection pipe 16, a heating water outlet 1, an electric heater 46, and a heating hot water header 425; the heating connecting pipe 16 is provided with an electric heater 46 near the head end thereof; the first three-way valve 40 is respectively provided with a water inlet end, a first water outlet end and a second water outlet end, the second water outlet end of the first three-way valve 40 is connected with the heat exchanger 42, the first water outlet end of the first three-way valve 40 is connected with the tail end of the heating connecting pipe 16, the head end of the heating connecting pipe 16 is connected with the heating water outlet 1, the water inlet end of the first three-way valve 40 is connected with one end of the heating hot water collecting pipe 425, and the other end of the heating hot water collecting pipe 425 is connected with the water outlet of the auxiliary burner 18; the domestic water system is connected with the heat exchanger 42; because the electric heater 46 is arranged close to the head end of the heating connecting pipe 16 and is connected with the heat exchanger 42, the electric power of the electric heater 46 can be adjusted between 0 and 2.5kW, and the defect that the hot water furnace body 1a cannot work between 0 and 2.5kW or is forcedly stopped due to unstable work when burning by using fuel gas is overcome. After the electric heater 46 is integrated in the water heater body 1a, the gas heating water heater can be subjected to stepless regulation between 0kW and the maximum heat load, so that the load regulation of 0-100% is realized, and the heating and domestic hot water is more comfortable and energy-saving to use.
In the high load regulation ratio gas-fired heating water heater in the embodiment, the heating system further comprises a heating water return part, a first branch pipe 33, a second three-way valve 12, a circulating water pump 9 and an expansion water tank 10, and the expansion water tank 10 is connected with the heating water return part;
the second three-way valve 12 is respectively provided with a water inlet end, a joint of a main heat exchanger of the second three-way valve and a joint of an auxiliary heat exchanger of the second three-way valve, the water inlet end of the second three-way valve 12 is connected with a water outlet of the circulating water pump 9, a joint of a main heat exchanger 31 of the second three-way valve 12 is connected with an inlet 30 of the main heat exchanger, and a joint of an auxiliary heat exchanger 18 of the second three-way valve 12 is connected with an inlet 19 of the auxiliary heat exchanger;
one end of the first branch pipe 33 is connected with the heat exchanger 42, the other end of the first branch pipe 33 is connected with a heating water return piece, and a circulating water pump 9 is arranged at the position, close to the tail end, of the heating water return piece.
In the high load regulation ratio gas heating water heater in the embodiment, the heating water return part comprises a heating water return port 5, a water return connecting pipe 20, a pressure release valve 7 and an inlet temperature sensor 8;
the head end of the backwater connecting pipe 20 is connected with the heating backwater port 5, the tail end of the backwater connecting pipe 20 is connected with the water inlet of the circulating water pump 9, and the inlet temperature sensor 8 is arranged at the position, close to the tail end, of the backwater connecting pipe 20; the return water connecting pipe 20 is provided with a pressure release valve 7 near the head end thereof; due to the second three-way valve 12, after the circulating water pump 9 distributes the flow of the backwater through the second three-way valve 12, the backwater flows in through the inlet 30 of the main heat exchanger and the inlet 19 of the auxiliary heat exchanger respectively, and the flow distribution of the second three-way valve 12 is adjusted according to the combustion load of the main combustion chamber 35 and the auxiliary combustion chamber 15, so that the heat exchange balance of the heat exchanger of the main combustion system and the heat exchanger of the auxiliary combustion system is achieved.
The flow of the second three-way valve 12 is adjusted according to the combustion load of the main combustion chamber 35 and the auxiliary combustion chamber 15 for distribution, and the main heat exchanger 31 and the auxiliary heat exchanger 18 can be effectively prevented from being corroded by acid condensate water of the main heat exchanger 31 and the auxiliary heat exchanger 18 due to the fact that the heat exchange capacity of the heat exchanger 42 is too large and local condensation occurs.
In the high load regulation ratio gas heating water heater of the embodiment, the smoke exhaust system comprises a fan 24, a main smoke collecting hood 28 and an auxiliary smoke collecting hood 21; the main smoke collecting cover 28 is positioned at the top of the main combustion chamber 35 and the main heat exchanger 31, the main smoke collecting cover 28 is provided with a main smoke collecting and discharging outlet 29, and the main smoke collecting and discharging outlet is connected with the inlet of the fan 24; the auxiliary smoke collecting hood 21 is arranged at the top of the auxiliary combustion chamber 15, the auxiliary smoke collecting hood 21 is provided with an auxiliary smoke collecting and discharging outlet 23, the auxiliary smoke collecting and discharging outlet is connected with an inlet of a fan 24, an air volume adjusting valve 22 is arranged at the outlet end of the auxiliary smoke collecting and discharging outlet, and a smoke outlet 25 of a heating furnace is arranged at the outlet of the fan 24; because the main collection exhaust outlet is connected with the inlet of the fan 24, the auxiliary collection exhaust outlet is connected with the inlet of the fan 24, the air volume adjusting valve 22 is arranged at the auxiliary collection exhaust outlet end, the air volume adjusting valve 22 can be adjusted according to the combustion load of the auxiliary combustion chamber 15, the opening and closing degree of the auxiliary collection exhaust inlet is controlled, the exhaust smoke volume is controlled, the fuel gas is combusted at the optimal air-fuel ratio, and the exhaust smoke heat loss and abnormal combustion working conditions (such as flame separation and ignition failure) caused by overlarge air volume are reduced. It should be noted that the fan 24 may specifically be a direct current variable frequency fan, because the exhaust of the direct current variable frequency fan is better.
In the high load regulation ratio gas-fired heating water heater in this embodiment, the heat exchanger 42 is plate-shaped, and the heat exchanger 42 is provided with a heating water inlet 421, a heating water outlet 422, a tap water inlet 423 and a domestic hot water outlet 424; the second water outlet end of the first three-way valve 40 is connected with the heating water inlet 421; the heating water outlet 422 is connected with the first branch pipe 33, and the heating water outlet 422 is connected with the return water connecting pipe 20 through the first branch pipe 33; the tap water inlet 423 is connected with the tap water connecting pipe 34; the domestic hot water outlet 424 is connected with the domestic hot water connecting pipe 26; due to the arrangement of the plurality of interfaces, flowing water in each path is more stable and smooth, and the installation and connection are facilitated. It should be noted that the tap water and the heating water are separated from each other and do not mix with each other by performing cross heat exchange in the heat exchanger.
In the high load regulation ratio gas heating water heater in the embodiment, an outlet water temperature sensor 27 is arranged at the convergence position between the main heat exchanger outlet 32 and the auxiliary heat exchanger outlet 17; due to the arrangement of the water outlet temperature sensor 27, the design enables the temperature to be detected more accurately.
In the high load regulation ratio gas heating water heater in the embodiment, the heating water return part further comprises a bypass valve 6, the outlet end of the bypass valve 6 is communicated with the water return connecting pipe 20, and the inlet end of the bypass valve is communicated with the heating connecting pipe 16; when the water resistance of the system is increased or the blockage occurs, the water can circulate from the bypass valve 6, so that the instantaneous high temperature of the water in the auxiliary heat exchanger 18 and the main heat exchanger 31 is avoided, and the protection effect is achieved.
It should be noted that, the pressure switch 41 is disposed at the head end of the heating connecting pipe 16, and the pressure release valve 7 is disposed at the head end of the return water connecting pipe 20, so that the heating connecting pipe 16 and the return water connecting pipe 20 can be better controlled by the design.
According to the working principle of the high-load regulation ratio gas heating water heater in practical application, an ignition needle of a main burner 36 is controlled to ignite through electric control, whether flame is detected by a flame feedback needle of the main burner 36 or not is controlled, an instruction is sent, after delay, a circuit board controls a gas proportional valve 11 to open the gas proportional valve 11 according to the current value under ignition power, and meanwhile, when a second gas subsection switch valve 13 of the main burner 36 and a first gas subsection switch valve 38 of an auxiliary burner 14 are controlled to be in a closed state by the circuit board, gas can only flow to the main burner 36; the main combustion chamber 35 and the auxiliary combustion chamber 15 are controlled in parallel in an electric control connection mode, so that after the main heat exchanger outlet 32 and the auxiliary heat exchanger outlet 17 are converged, water is led out through a heating hot water collecting pipe 425; while the heating hot water collecting pipe 425 guides out the water, the water is subjected to flow distribution through the second three-way valve 12 and the circulating water pump, and then flows into the inlet 30 of the main heat exchanger and the inlet 19 of the auxiliary heat exchanger, so that the heat exchange balance of the heat exchanger of the main combustion system and the heat exchanger of the auxiliary combustion system is achieved, and a larger load regulation ratio is realized; when the main burner 36 works, the air volume adjusting valve 22 is opened, and when the main burner 36 does not work or the working load is reduced, the air volume adjusting valve 22 is closed or reduced, so that the effect of adjusting the air volume is achieved, and the gas heating water heater can work stably and reliably; and the air volume adjusting valve 22 is closed or turned down, so that the condition that the auxiliary combustion system does not work and air flows through the auxiliary combustion system can be avoided, particularly in cold winter, when cold air flows through the heat exchanger of the auxiliary combustion system, system water in the heat exchanger of the auxiliary combustion system is frozen, the heat exchanger of the auxiliary combustion system can be damaged, and energy consumption can be caused even if the heat exchanger is provided with an anti-freezing function (energy is not saved).
The technical principle of the present invention is described above with reference to specific embodiments. The description is made for the purpose of illustrating the principles of the invention and should not be construed in any way as limiting the scope of the invention. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without any inventive effort, which would fall within the scope of the present invention.
Claims (10)
1. The utility model provides a high load turndown ratio gas heating water heater which characterized in that: comprises a water heater body, a combustion system, a smoke exhaust system, a domestic water system and a heating system;
the combustion system is arranged in the water heater body, the top of the water heater body is provided with an air inlet, the smoke exhaust system is arranged above the combustion system, and the domestic water system and the heating system are arranged below the combustion system;
the combustion system comprises a main combustion chamber and an auxiliary combustion chamber, wherein a main burner is arranged in the main combustion chamber, a sectional partition plate is arranged in the main burner, an ignition needle of the main burner and a flame feedback needle of the main burner are arranged above the surface of a fire hole of the main burner, a main heat exchanger is arranged above the main burner, a main heat exchanger inlet is arranged at one side of the main heat exchanger, and a main heat exchanger outlet is arranged at the other side of the main heat exchanger;
the auxiliary combustor is arranged in the auxiliary combustion chamber, an ignition needle of the auxiliary combustor and a flame feedback needle of the auxiliary combustor are arranged above the surface of a fire hole of the auxiliary combustor, an auxiliary heat exchanger is arranged above the auxiliary combustor, an auxiliary heat exchanger water inlet is arranged on one side of the auxiliary heat exchanger, and an auxiliary heat exchanger outlet is arranged on the other side of the auxiliary heat exchanger.
2. The high duty turndown ratio gas-fired heating water heater according to claim 1, wherein: the domestic water system comprises a gas component;
the gas component comprises a gas inlet, a gas connecting pipe, a gas proportional valve, a first gas sectional switch valve, a second gas sectional switch valve, a gas inlet pipe and a gas branch pipe;
the head end of the gas connecting pipe is connected with the gas inlet, and the tail end of the gas connecting pipe is connected with the auxiliary burner;
the gas connecting pipe is provided with the gas proportional valve near the head end thereof, and the gas connecting pipe is provided with the second gas sectional switch valve near the tail end thereof;
one end of the gas inlet pipe is connected with the gas connecting pipe, and the other end of the gas inlet pipe is connected with the main burner; the head end of the gas branch pipe is connected with the gas inlet pipe, and the tail end of the gas branch pipe is connected with the main burner;
the gas branch pipe is provided with the first gas section switch valve near the tail end of the gas branch pipe.
3. The high duty turndown ratio gas-fired heating water heater according to claim 1, wherein: the heating system comprises a heat exchanger, a first three-way valve, a heating connecting pipe, a heating water outlet, an electric heater and a heating hot water collecting pipe;
the electric heater is arranged at the position, close to the head end, of the heating connecting pipe;
the first three-way valve is respectively provided with a water inlet end, a first water outlet end and a second water outlet end, the second water outlet end of the first three-way valve is connected with the heat exchanger, the first water outlet end of the first three-way valve is connected with the tail end of the heating connecting pipe, the head end of the heating connecting pipe is connected with the heating water outlet, the water inlet end of the first three-way valve is connected with one end of the heating hot water collecting pipe, and the other end of the heating hot water collecting pipe is connected with the water outlet of the auxiliary heat exchanger and the water outlet of the main heat exchanger; the domestic water system is connected with the heat exchanger.
4. The high duty turndown ratio gas-fired heating water heater according to claim 3, wherein: the heating system also comprises a heating water return part, a first branch pipe, a second three-way valve, a circulating water pump and an expansion water tank, wherein the expansion water tank is connected with the heating water return part;
the second three-way valve is respectively provided with a water inlet end, a connector of a main heat exchanger of the second three-way valve and a connector of an auxiliary heat exchanger of the second three-way valve, the water inlet end of the second three-way valve is connected with the water outlet of the circulating water pump, the connector of the main heat exchanger of the second three-way valve is connected with the inlet of the main heat exchanger, and the connector of the auxiliary heat exchanger of the second three-way valve is connected with the water inlet of the auxiliary heat exchanger;
one end of the first branch pipe is connected with the heat exchanger, the other end of the first branch pipe is connected with the heating water return piece, and the circulating water pump is arranged at the position, close to the tail end, of the heating water return piece.
5. The high duty turndown ratio gas-fired heating water heater according to claim 4, wherein: the heating water return part comprises a heating water return port, a water return connecting pipe, a pressure release valve and an inlet temperature sensor;
the head end of the backwater connecting pipe is connected with the heating backwater port, the tail end of the backwater connecting pipe is connected with the water inlet of the circulating water pump, and the inlet temperature sensor is arranged at the position, close to the tail end, of the backwater connecting pipe; the return water connecting pipe is provided with the pressure release valve near the head end of the return water connecting pipe.
6. The high duty turndown ratio gas-fired heating water heater according to claim 5, wherein: the domestic water system also comprises a domestic hot water component and a tap water component;
the domestic hot water assembly comprises a domestic hot water outlet and a domestic hot water connecting pipe, one end of the domestic hot water connecting pipe is connected with the domestic hot water outlet, and the other end of the domestic hot water connecting pipe is connected with the heat exchanger;
the tap water assembly comprises a tap water inlet and a tap water connecting pipe, the head end of the tap water connecting pipe is connected with the tap water inlet, and the tail end of the tap water connecting pipe is connected with the heat exchanger.
7. The high duty turndown ratio gas-fired heating water heater according to claim 1, wherein: the smoke exhaust system comprises a fan, a main smoke collecting hood and an auxiliary smoke collecting hood;
the main smoke collecting hood is arranged at the top of the main combustion chamber and is provided with a main smoke collecting and exhausting outlet which is connected with the inlet end of the fan;
the auxiliary smoke collecting hood is arranged at the top of the auxiliary combustion chamber and is provided with an auxiliary smoke exhaust outlet, the auxiliary smoke exhaust outlet is connected with the inlet end of the fan, an air volume adjusting valve is arranged at the exhaust outlet end of the auxiliary smoke collecting hood and is located at the exhaust outlet end of the fan, and a heating furnace exhaust port is arranged at the exhaust outlet end of the fan.
8. The high duty turndown ratio gas-fired heating water heater according to claim 6, wherein: the heat exchanger is in a plate shape and is respectively provided with a heating water inlet, a heating water outlet, a tap water inlet and a domestic hot water outlet;
the second water outlet end of the first three-way valve is connected with the heating water inlet;
the heating water outlet is connected with the first branch pipe, and the heating water outlet is connected with the return water connecting pipe through the first branch pipe; the tap water inlet is connected with the tap water connecting pipe; the domestic hot water outlet is connected with the domestic hot water connecting pipe.
9. The high duty turndown ratio gas-fired heating water heater according to claim 1, wherein: and a water outlet temperature sensor is arranged at the collection position between the outlet of the main heat exchanger and the outlet of the auxiliary heat exchanger.
10. The high duty turndown ratio gas-fired heating water heater according to claim 5, wherein: the heating return water piece further comprises a bypass valve, the outlet end of the bypass valve is communicated with the return water connecting pipe, and the inlet end of the bypass valve is communicated with the heating connecting pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022568825.7U CN214949847U (en) | 2020-11-09 | 2020-11-09 | High-load regulation ratio gas heating water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022568825.7U CN214949847U (en) | 2020-11-09 | 2020-11-09 | High-load regulation ratio gas heating water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214949847U true CN214949847U (en) | 2021-11-30 |
Family
ID=79035037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022568825.7U Active CN214949847U (en) | 2020-11-09 | 2020-11-09 | High-load regulation ratio gas heating water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214949847U (en) |
-
2020
- 2020-11-09 CN CN202022568825.7U patent/CN214949847U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201875806U (en) | Dual-purpose wall-hung furnace for plate-type heat exchanger | |
| CN2658641Y (en) | Gas water heater capable of sectional burning | |
| CN201662211U (en) | Dual-water-pump gas-fired heating and hot water boiler | |
| CN212274265U (en) | Low-nitrogen condensation wall-mounted furnace | |
| CN214949847U (en) | High-load regulation ratio gas heating water heater | |
| CN112212511A (en) | High-load regulation ratio gas heating water heater | |
| CN110793192A (en) | Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace | |
| CN206001583U (en) | A kind of condensed type combustion gas warm up bath dual-purpose stove | |
| CN214949346U (en) | Gas wall-mounted furnace capable of intelligently adjusting indoor temperature | |
| CN112682944B (en) | Burner assembly and gas water heating equipment comprising same | |
| CN212006196U (en) | Wall-hanging stove hot water system | |
| CN205579720U (en) | Energy saving and emission reduction's gas hanging stove | |
| CN212409053U (en) | Multifunctional low-nitrogen-emission wall-mounted furnace | |
| CN212362422U (en) | Water heater | |
| CN209386557U (en) | Oil gas field intelligent heating system | |
| CN212274234U (en) | Double-water-pipe energy-saving heat exchanger and intelligent wall-mounted boiler water heater thereof | |
| CN209623110U (en) | A kind of burnt gas wall hanging furnace | |
| CN106152229A (en) | A kind of condensed type combustion gas warm bath dual-purpose stove | |
| CN209926597U (en) | Combustion heat exchange device, gas wall-mounted furnace and gas water heater | |
| CN209147422U (en) | Wall-mounted gas heating stove | |
| CN209639235U (en) | A kind of dual system gas heater | |
| CN211290526U (en) | Wall-mounted furnace | |
| CN2558920Y (en) | Wall-hung heating/hot water dualpurpose gas stove | |
| CN218179230U (en) | Gas wall-mounted furnace provided with sleeve heat exchanger | |
| CN218955180U (en) | Wall-mounted efficient heat exchange water heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |