CN219199477U - Constant temperature gas water heater - Google Patents
Constant temperature gas water heater Download PDFInfo
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- CN219199477U CN219199477U CN202223362838.4U CN202223362838U CN219199477U CN 219199477 U CN219199477 U CN 219199477U CN 202223362838 U CN202223362838 U CN 202223362838U CN 219199477 U CN219199477 U CN 219199477U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The utility model relates to a constant temperature gas water heater, which comprises a temperature controller, an ignition needle, an induction needle, a burner gas electromagnetic valve, a gas inlet interface, a hot water outlet interface, a cold water inlet interface and a heat exchanger; the temperature controller is arranged at the hot water outlet part of the heat exchanger, the hot water outlet of the heat exchanger is communicated with the hot water outlet interface, and the gas inlet of the gas electromagnetic valve is communicated with the gas inlet interface; is characterized by also comprising a fuel gas proportional valve, a water flow sensor, a water inlet valve and a control circuit board; the gas outlet of the gas electromagnetic valve is communicated with the gas inlet of the gas proportional valve, and the gas outlet of the gas proportional valve is communicated with the gas inlet of the burner; one end of the water flow sensor is communicated with the cold water inlet of the heat exchanger after being connected in series with the water inlet valve, and the other end of the water flow sensor is communicated with the cold water inlet connector. The advantages are that: the water outlet temperature can be kept constant, and the use comfort is good.
Description
Technical Field
The utility model relates to a constant temperature gas water heater.
Background
As shown in fig. 1, the existing gas water heater comprises a temperature controller (2), an ignition needle (3), an induction needle (4), a burner (5), a water-gas linkage valve (6), an igniter (7), a gas electromagnetic valve (8), a gas inlet interface (9), a hot water outlet interface (10), a micro switch (11), a cold water inlet interface (12), a heat exchanger (13) and a battery box (14); the temperature controller (2) is arranged at the hot water outlet part of the heat exchanger (13), the hot water outlet of the heat exchanger (13) is communicated with the hot water outlet interface (10), and the cold water outlet of the heat exchanger (13) is communicated with the cold water inlet interface (12). When the water flow passes through the water-gas linkage valve (6), pressure difference is generated in the cavity of the water-gas linkage valve (6) under the Venturi effect, the water-gas linkage rod of the water-gas linkage valve (6) pushes the valve of the burner (5), at the moment, the micro switch (11) is connected with a circuit, the controller works to fire and open the electromagnetic valve (8), and the electromagnetic valve (8) is continuously powered after the controller fires to maintain the suction opening state, so that the water heater is ensured to keep working. During the working period, the valve size of the burner (5) is unchanged, when the water inflow is large, the water outlet temperature is lower, when the water inflow is small, the water outlet temperature is higher, the water outlet temperature cannot be kept constant, and the use comfort is poor.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art and provide the constant-temperature gas water heater, wherein the water outlet temperature can be kept constant, and the use comfort is good.
In order to achieve the aim, the utility model is realized in such a way that the constant temperature gas water heater comprises a temperature controller, an ignition needle, an induction needle, a burner, a gas electromagnetic valve, a gas inlet interface, a hot water outlet interface, a cold water inlet interface and a heat exchanger; the temperature controller is arranged at the hot water outlet part of the heat exchanger, the hot water outlet of the heat exchanger is communicated with the hot water outlet interface, and the gas inlet of the gas electromagnetic valve is communicated with the gas inlet interface; the device is characterized by also comprising a fuel gas proportional valve, a water flow sensor, a water inlet valve and a control circuit board; the gas outlet of the gas electromagnetic valve is communicated with the gas inlet of the gas proportional valve, and the gas outlet of the gas proportional valve is communicated with the gas inlet of the burner; one end of the water flow sensor is communicated with a cold water inlet of the heat exchanger after being connected in series with the water inlet valve, and the other end of the water flow sensor is communicated with a cold water inlet port; the control circuit board comprises a central control module, a temperature detection module, an overheat signal detection module, a flame signal detection module, a water flow signal detection module, a display operation module, an ignition module, a fuel gas proportional valve driving module, a fuel gas electromagnetic valve driving module and a water flow and fuel gas valve linkage control module, wherein the central control module receives input signals of the temperature detection module, the overheat signal detection module, the flame signal detection module, the water flow signal detection module and the display operation module respectively and processes the input signals, then the central control module outputs signals to the ignition module for ignition, the central control module outputs signals to the fuel gas electromagnetic valve driving module and the fuel gas proportional valve driving module respectively, and when the water flow and fuel gas valve linkage control module receives signals of the water flow signal detection module and signals input by the central control module simultaneously, the fuel gas electromagnetic valve and the fuel gas proportional valve are electrically operated to adjust the size of the fuel gas outlet, and the display operation module displays signals input by the central control module.
In the technical scheme, the water outlet of the water flow sensor is communicated with the cold water inlet of the heat exchanger, the water inlet of the water flow sensor is communicated with the water outlet of the water inlet valve, and the water inlet of the water inlet valve is communicated with the cold water inlet connector.
In the technical scheme, an anti-back draft exhaust hood is arranged at the upper end of the heat exchanger.
Compared with the prior art, the utility model has the advantages that: the water outlet temperature can be kept constant, and the use comfort is good.
Drawings
FIG. 1 is a schematic diagram of a prior art construction of the present utility model;
FIG. 2 is a schematic diagram of the structure of the present utility model;
fig. 3 is a circuit block diagram of a control wiring board of the present utility model.
Detailed Description
The following describes the embodiments of the present utility model further with reference to the drawings. The description of these embodiments is provided to assist understanding of the present utility model, but is not intended to limit the present utility model. In addition, technical features of the embodiments of the present utility model described below may be combined with each other as long as they do not collide with each other.
As shown in fig. 2 and 3, the constant temperature gas water heater comprises a temperature controller 2, an ignition needle 3, a sensing needle 4, a burner 5, a gas electromagnetic valve 8, a gas inlet port 9, a hot water outlet port 10, a cold water inlet port 12, a heat exchanger 13, a gas proportional valve 15, a water flow sensor 16, a water inlet valve 17 and a control circuit board 18.
The temperature controller 2 is arranged at the hot water outlet part of the heat exchanger 13, and the hot water outlet of the heat exchanger 13 is communicated with the hot water outlet interface 10; the gas inlet of the gas electromagnetic valve 8 is communicated with the gas inlet port 9, the gas outlet of the gas electromagnetic valve 8 is communicated with the gas inlet port of the gas proportional valve 15, the gas outlet of the gas proportional valve 15 is communicated with the gas inlet port of the burner 5, and the gas inlet port of the gas proportional valve 15 is communicated with the gas inlet port 9; one end of the water flow sensor 16 is communicated with a cold water inlet of the heat exchanger 13 after being connected in series with the water inlet valve 17, and the other end of the water flow sensor is communicated with the cold water inlet port 12; the control circuit board 18 includes a central control module, a temperature detection module, an overheat signal detection module, a flame signal detection module, a water flow signal detection module, a display operation module, an ignition module, a fuel gas proportional valve driving module, a fuel gas solenoid valve driving module and a water flow and fuel gas valve linkage control module, wherein the central control module receives and processes input signals of the temperature detection module, the overheat signal detection module, the flame signal detection module, the water flow signal detection module and the display operation module respectively, then the central control module outputs signals to the ignition module for ignition, the central control module also outputs signals to the fuel gas solenoid valve driving module and the fuel gas proportional valve driving module respectively, when the water flow and fuel gas valve linkage control module receives signals of the water flow signal detection module and signals input by the central control module simultaneously, the fuel gas solenoid valve 8 and the fuel gas proportional valve 15 are electrically operated, and the air outlet of the fuel gas proportional valve 15 is regulated according to signals input by the central control module, so that the water outlet temperature of the hot water outlet interface 10 is constant, and the display operation module displays signals input by the central control module.
When cold water flows into the water flow sensor 16 from the cold water inlet 12, the Hall element of the water flow sensor 16 senses a water flow signal and sends out a pulse signal, the control circuit board 18 works, the central control module sends out signals for igniting and starting the gas electromagnetic valve 18 and the gas proportional valve 15, gas enters the gas distributing rod 19 from the gas inlet 9 through the gas electromagnetic valve 18 and the gas proportional valve 15 and is distributed to each nozzle 20 to be ejected into the combustor 5, and after the ignition needle 3 ignites the gas, the gas electromagnetic valve 8 and the gas proportional valve 15 maintain an attraction opening state, so that the water heater is ensured to keep working. When the water inflow is large, the opening of the fuel gas proportional valve 15 is increased, and the fuel gas amount entering the burner 5 is increased, so that the temperature of hot water outlet is unchanged; when the inflow is small, the opening of the gas proportional valve 15 is reduced, and the amount of gas entering the burner 5 is reduced, so that the temperature of hot water outflow is unchanged.
In this embodiment, the water outlet of the water flow sensor 16 is communicated with the cold water inlet of the heat exchanger 13, the water inlet of the water flow sensor 16 is communicated with the water outlet of the water inlet valve 17, and the water inlet of the water inlet valve 17 is communicated with the cold water inlet port 12.
In the present embodiment, an anti-back draft exhaust hood 1 is provided at an upper end of the heat exchanger 13.
The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings, but the present utility model is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made hereto without departing from the spirit and scope of the utility model as defined by the appended claims.
Claims (3)
1. The constant temperature gas water heater comprises a temperature controller (2), an ignition needle (3), an induction needle (4), a burner (5), a gas electromagnetic valve (8), a gas inlet interface (9), a hot water outlet interface (10), a cold water inlet interface (12) and a heat exchanger (13); the temperature controller (2) is arranged at the hot water outlet part of the heat exchanger (13), the hot water outlet of the heat exchanger (13) is communicated with the hot water outlet interface (10), and the gas inlet of the gas electromagnetic valve (8) is communicated with the gas inlet interface (9); the water flow sensor is characterized by further comprising a fuel gas proportional valve (15), a water flow sensor (16), a water inlet valve (17) and a control circuit board (18); the gas outlet of the gas electromagnetic valve (8) is communicated with the gas inlet of the gas proportional valve (15), and the gas outlet of the gas proportional valve (15) is communicated with the gas inlet of the burner (5); one end of the water flow sensor (16) is communicated with a cold water inlet of the heat exchanger (13) after being connected in series with the water inlet valve (17), and the other end of the water flow sensor is communicated with the cold water inlet connector (12); the control circuit board (18) comprises a central control module, a temperature detection module, an overheat signal detection module, a flame signal detection module, a water flow signal detection module, a display operation module, an ignition module, a fuel gas proportional valve driving module, a fuel gas electromagnetic valve driving module and a water flow and fuel gas valve linkage control module, wherein the central control module receives input signals of the temperature detection module, the overheat signal detection module, the flame signal detection module, the water flow signal detection module and the display operation module respectively and processes the input signals, then the central control module outputs signals to the ignition module for ignition, the central control module outputs signals to the fuel gas electromagnetic valve driving module and the fuel gas proportional valve driving module respectively, and when the water flow and fuel gas valve linkage control module receives signals of the water flow signal detection module and signals input by the central control module simultaneously, the fuel gas electromagnetic valve and the fuel gas proportional valve are electrically operated to adjust the size of a fuel gas outlet, and the display operation module displays signals input by the central control module.
2. The constant temperature gas water heater as claimed in claim 1, wherein the water outlet of the water flow sensor (16) is communicated with the cold water inlet of the heat exchanger (13), the water inlet of the water flow sensor (16) is communicated with the water outlet of the water inlet valve (17), and the water inlet of the water inlet valve (17) is communicated with the cold water inlet port (12).
3. A thermostatic gas water heater according to claim 1, characterized in that an anti-back draft exhaust hood (1) is provided at the upper end of the heat exchanger (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223362838.4U CN219199477U (en) | 2022-12-15 | 2022-12-15 | Constant temperature gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223362838.4U CN219199477U (en) | 2022-12-15 | 2022-12-15 | Constant temperature gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219199477U true CN219199477U (en) | 2023-06-16 |
Family
ID=86708072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223362838.4U Active CN219199477U (en) | 2022-12-15 | 2022-12-15 | Constant temperature gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219199477U (en) |
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2022
- 2022-12-15 CN CN202223362838.4U patent/CN219199477U/en active Active
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