Standard gas water heater

Abstract

A standard gas water heater comprises a shell, a burner assembly, a heat exchanger assembly, a pneumatic control system assembly, a fan assembly, an exhaust fume collecting hood assembly, a water pump system assembly, a water outlet nozzle assembly and a main controller assembly, and all the assembly parts are installed in the shell. The standard gas water heater performs stable thermal load output work in a mode of independently controlling variables and enabling the variables to realize step regulation, data detected by the detection device is only influenced by single variable control, and an objective and real detection result can be obtained, so that the accuracy and the detection capability of the detection result of the detection device are accurately evaluated, and the detection efficiency is improved. And variable control and adjustment of the standard gas water heater are more stable and reliable.

Description

Technical Field

[0001] The present invention belongs to the technical field of detection standard prototypes, and particularly relates to a standard gas water heater. Background Art

[0002] Before being put on the market for sale, gas water heaters need to be tested in accordance with national standards. Only when the test results meet the national standards can they be put on the market for sale, so as to ensure that consumers can use gas water heaters safely. In order to test various indicators of gas water heaters, testing institutions will configure corresponding testing devices to test gas water heaters and issue corresponding test results, and the performance of gas water heaters can be reflected through the test results. At the same time, gas water heaters are products subject to energy efficiency labels. By using standard gas water heaters, the accuracy and reliability of gas water heater energy efficiency testing devices can be ensured, and the effective implementation of the gas water heater energy efficiency label system can be guaranteed.

[0003] In order to ensure the accuracy of gas water heater test results, the testing devices need to be calibrated through metrology. When calibrating the testing devices through metrology, standard gas water heaters are required. The standard gas water heater is connected to the testing device for measurement, and the set output value of the standard gas water heater is compared with the detected value of the testing device, and it is required that the deviation between the two meets the metrological allowable error; if the deviation between the two exceeds the metrological allowable error, it means that the accuracy of the test result is poor, and the testing device needs to be recalibrated and verified. Therefore, the standard gas water heater is an important tool for product quality control and energy efficiency improvement in the gas water heater industry, and can better promote the improvement and development of the energy efficiency measurement level in the gas water heater industry.

[0004] For the existing technical level of ordinary gas water heaters, the heat load is unstable during normal operation, resulting in inaccurate test results, unable to accurately evaluate the actual testing ability of the testing device, and unable to effectively guarantee the product quality and energy efficiency level of the gas water heater to be tested. Therefore, a standard gas water heater with a stable heat load output during operation is needed. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, the present invention provides a standard gas water heater.

[0006] The technical solution adopted by the present invention to solve its technical problems is: A standard gas water heater includes a housing, a burner assembly, a heat exchanger assembly, an air control system assembly, a fan assembly, a smoke hood assembly, a water pump system assembly, a water outlet nozzle assembly, and a main controller assembly, and each assembly component is installed in the housing; The burner assembly is used for burning gas to heat the heat exchanger assembly. The burner assembly is respectively connected to the air control system assembly and the fan assembly, and the air control system assembly provides gas for the combustion of the burner assembly, and the fan assembly provides air for the combustion of the burner assembly; The heat exchanger assembly is for water flow to pass through, and transfers heat to the water flow to heat up the water flow. The water inlet end of the heat exchanger assembly is connected to the water pump system assembly through a water pipe, and the water outlet end of the heat exchanger assembly is connected to the water outlet nozzle assembly through a water pipe; The smoke collecting hood assembly is for processing the flue gas generated by the combustion of the burner assembly and discharging the purified flue gas. The smoke collecting hood assembly is connected to the heat exchanger assembly; The main controller is respectively connected to the burner assembly, the heat exchanger assembly, the gas control system assembly, the fan assembly, the smoke collecting hood assembly, the water pump system assembly and the water outlet nozzle assembly through circuits, and controls the operation of each assembly component; The gas control system assembly, the fan assembly and the water pump system assembly cooperate to control, so that the heat load during the operation of the burner assembly is constant, and the heat load during the operation of the burner assembly is steplessly adjustable.

[0007] In the present invention, the burner assembly includes a dual-channel combustion chamber, a combustion chamber panel assembly and a gas injection pipe assembly. A dual-channel burner is installed in the dual-channel combustion chamber. The combustion chamber panel assembly covers the opening of the dual-channel combustion chamber. The gas inlet end of the gas injection pipe assembly is connected to the gas control system assembly, and the gas outlet end of the gas injection pipe assembly passes through the combustion chamber panel assembly and is connected to the dual-channel burner. The gas control system assembly transmits gas to the dual-channel burner through the gas injection pipe assembly, and the gas injection pipe assembly pressurizes and injects the gas.

[0008] In the present invention, the dual-channel burner includes an outer combustion chamber shell, an inner combustion chamber shell and an inner combustion chamber core. The outer combustion chamber shell is clamped on the outer side wall of the inner combustion chamber shell, and a first flame spraying hole is formed between the inner combustion chamber shell and the outer combustion chamber shell; the inner combustion chamber core is installed inside the inner combustion chamber shell, and a second flame spraying hole is formed between the inner combustion chamber core and the inner combustion chamber shell, and the first flame spraying holes are distributed outside the second flame spraying holes.

[0009] In the present invention, the outer combustion chamber shell is provided with a first gas injection channel communicating with the first flame spraying hole, and the inner combustion chamber shell is provided with a second gas injection channel communicating with the second flame spraying hole. The first gas injection channel and the second gas injection channel are respectively connected to the gas injection pipe assembly. The gas is controlled to enter the first gas injection channel and the second gas injection channel respectively through the gas injection pipe assembly, and is ignited and burned respectively from the first flame spraying hole and the second flame spraying hole. A relatively thick flame is formed by ignition in the first flame spraying hole, and a relatively light flame is formed by ignition in the second flame spraying hole.

[0010] In the present invention, a gas distribution pipe and a proportional valve are provided in the gas control system assembly. The gas distribution pipe includes an air inlet pipe and two air outlet pipes. The two air outlet pipes are respectively connected to the proportional valve, and the gas flow rate of the corresponding air outlet pipe is controlled through the proportional valve; the proportional valve is connected to the main controller assembly through a circuit.

[0011] In the present invention, the heat load regulation of a standard gas water heater is provided with multiple gears.

[0012] In the present invention, the fan assembly includes a centrifugal fan, an air distribution device, and a wind speed sensor. The air distribution device is installed at the air outlet of the centrifugal fan, and the wind speed sensor is installed on the side where the air distribution device discharges air. The air distribution device is used to make the air discharge evenly when the centrifugal fan works, and the wind speed sensor is used to detect the wind speed on the side where the air distribution device discharges air and feedback the wind speed signal to the main controller assembly.

[0013] In the present invention, the main controller assembly compares the wind speed detected by the wind speed sensor with the set standard wind speed, outputs a compensation signal to the centrifugal fan, and controls the operation of the centrifugal fan so that the wind speed transmitted by the centrifugal fan to the burner assembly is equal to the set standard wind speed.

[0014] In the present invention, after the wind speed of the centrifugal fan of the standard gas water heater is stable and equal to the set standard wind speed, the main controller assembly controls the centrifugal fan to work in a steady flow and stable pressure state.

[0015] In the present invention, the air distribution device includes an air distribution plate, and a plurality of groups of air distribution unit channels for evenly distributing air are arranged in an array on the air distribution plate; the air distribution plate is a metal plate uniformly provided with a microporous structure.

[0016] The beneficial effect of the present invention is that the standard gas water heater performs stable output work of the heat load by independently controlling variables and making the variables achieve stepped regulation. The data detected by the detection device is only affected by the control of a single variable, and objective and true detection results can be obtained, so as to accurately evaluate the accuracy and detection ability of the detection results of the detection device, and make the variable control regulation of the standard gas water heater more stable and reliable. Brief Description of the Drawings

[0017] Figure 1 It is a front structural schematic diagram of the standard gas water heater of this embodiment; Figure 2 It is an exploded view of the standard gas water heater of this embodiment; Figure 3 It is a structural schematic diagram of the dual-channel burner of this embodiment; Figure 4 It is a structural schematic diagram of the burner housing of this embodiment; Figure 5 It is a structural schematic diagram of the inner shell of the burner of this embodiment; Figure 6 It is a structural schematic diagram of the inner core of the burner of this embodiment; Figure 7 It is a structural schematic diagram of the fan assembly of this embodiment; Figure 8Schematic diagram of the internal structure of the air distribution plate in this embodiment; Figure 9 Schematic diagram of the structure of the air distribution unit channel in this embodiment. Detailed implementation manners

[0018] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0019] As Figures 1 to 9As shown, this embodiment discloses a standard gas water heater, including a housing 1, a burner assembly 2, a heat exchanger assembly 3, a gas control system assembly 4, a fan assembly 5, a smoke hood assembly 6, a water pump system assembly 7, a water outlet assembly 8 and a main controller assembly 9, and each assembly component is installed in the housing 1; the burner assembly 2 is used to burn gas to heat the heat exchanger assembly 3, the burner assembly 2 is connected to the gas control system assembly 4 and the fan assembly 5 respectively, and the gas control system assembly 4 provides gas for the burner assembly 2 to burn, and the fan assembly 5 provides air for the burner assembly 2 to burn; the heat exchanger assembly 3 is used to heat the water flow The heat is transferred to the water flow through the heat exchanger assembly 3, so that the water flow is heated and heated. The water inlet end of the heat exchanger assembly 3 is connected to the water pump system assembly 7 through a water pipe, and the water outlet end of the heat exchanger assembly 3 is connected to the water outlet nozzle assembly 8 through a water pipe; the smoke hood assembly 6 is used to treat the smoke generated by the combustion of the burner assembly 2, and discharge the purified smoke. The smoke hood assembly 6 is connected to the heat exchanger assembly 3. The main controller assembly 9 is connected to the burner assembly 2, the heat exchanger assembly 3, the air control system assembly 4, the fan assembly 5, the smoke hood assembly 6, the water pump system assembly 7 and the water outlet nozzle assembly 8 through the circuit, and controls the operation of each assembly component. Among them, the air control system assembly 4, the fan assembly 5 and the water pump system assembly 7 are coordinated to control the heat load of the burner assembly 2 when it is working, and the heat load of the burner assembly 2 when it is working is step-regulated. By controlling the variable of heat load in a step-by-step and independent manner, when the standard gas water heater is used for the metrological calibration of the detection device, the output data of the detection device can be evaluated by adjusting a single variable. When adjusting a single variable, other variables remain unchanged, thereby avoiding the problem that other variables affect the data output of the detection device as the adjusted variable changes. Because the standard gas water heater is a tool for evaluating the detection accuracy and detection capability of the detection device, if the standard gas water heater can automatically adjust the working conditions of its various working parts during operation to keep its output constant, the results of the detection of the standard gas water heater by the detection device will also remain in a relatively stable state, and the detection device cannot be effectively evaluated, and the detection accuracy and detection capability of the detection device cannot be judged. The standard gas water heater of this embodiment performs the work of stable heat load output by independently controlling the variable and making the variable realize step-by-step adjustment. The data obtained by the detection device is only affected by the control of a single variable, and an objective and true detection result can be obtained, thereby accurately evaluating the accuracy and detection capability of the detection result of the detection device, making the variable control adjustment of the standard gas water heater more stable and reliable. Use a standard gas water heater to connect to the detection device for measurement, compare the set output value of the standard gas water heater with the detection value of the detection device, and require the deviation between the two to meet the allowable measurement error; if the deviation between the two exceeds the allowable measurement error, it means that the accuracy of the test result is not good, and the detection device needs to be recalibrated and verified. The detection device can be calibrated in a targeted manner based on the deviation.Meanwhile, the detection ability of the inspection device can also be evaluated according to the deviation between the detection value of the detection device and the set output value of the standard gas water heater. The smaller the deviation, the stronger the detection ability; the larger the deviation, the weaker the detection ability.

[0020] In this embodiment, the burner assembly 2 includes a dual-channel combustion chamber 21, a combustion chamber panel assembly 22, and a gas injection pipe assembly 23. A dual-channel burner 211 is installed in the dual-channel combustion chamber 21. The combustion chamber panel assembly 22 covers the opening of the dual-channel combustion chamber 21. The intake end of the gas injection pipe assembly 23 is connected to the gas control system assembly 4, and the outlet end of the gas injection pipe assembly 23 passes through the combustion chamber panel assembly 22 and is connected to the dual-channel burner 211. The gas control system assembly 4 transmits gas to the dual-channel burner 211 through the gas injection pipe assembly 23, and the gas injection pipe assembly 23 pressurizes and injects the gas. The dual-channel burner 211 includes an outer combustion chamber shell 2111, an inner combustion chamber shell 2112, and an inner combustion chamber core 2113. The outer combustion chamber shell 2111 is clamped on the outer side wall of the inner combustion chamber shell 2112, and a first flame ejection hole 2114 is formed between the outer combustion chamber shell 2111 and the inner combustion chamber shell 2112. The inner combustion chamber core 2113 is installed inside the inner combustion chamber shell 2112, and a second flame ejection hole 2115 is formed between the inner combustion chamber core 2113 and the inner combustion chamber shell 2112. The first flame ejection holes 2114 are distributed outside the second flame ejection holes 2115. The outer combustion chamber shell 2111 is provided with a first gas ejection channel 2116 communicating with the first flame ejection hole 2114, and the inner combustion chamber shell 2112 is provided with a second gas ejection channel 2117 communicating with the second flame ejection hole 2115. The first gas ejection channel 2116 and the second gas ejection channel 2117 are respectively connected to the gas injection pipe assembly 23. By controlling the gas injection pipe assembly 23, gas is respectively introduced into the first gas ejection channel 2116 and the second gas ejection channel 2117, and is respectively ignited and burned from the first flame ejection hole 2114 and the second flame ejection hole 2115. A relatively thick flame is formed by ignition in the first flame ejection hole 2114, and a relatively weak flame is formed by ignition in the second flame ejection hole 2115. Thus, when the dual-channel burner 211 is working, a flame combustion mode with a thick outer layer and a weak inner layer is formed. The combustion stability of the dual-channel burner 211 is higher, the heat input to the heat exchanger assembly 3 is more stable, thereby reducing the influence of unstable gas combustion on the detection result, making the operation of the standard gas water heater more stable, and making the measurement calibration result of the detection equipment more reliable. Specifically, a gas distribution pipe and a proportional valve are provided in the gas control system assembly 4. The gas distribution pipe includes an intake pipe and two outlet pipes, and the two outlet pipes are respectively connected to the proportional valve. The gas flow rate of the corresponding outlet pipe is controlled by the proportional valve. The proportional valve is electrically connected to the main controller assembly 9. The staff can send a control signal to the proportional valve through the main controller assembly 9, thereby controlling the gas flow rate of the gas distribution pipe and realizing the adjustment of the working heat load of the standard gas water heater.

[0021] In specific implementation, the heat load adjustment of a standard gas water heater can be set in multiple gears. Thus, when the detection device needs to perform accuracy verification on the operating conditions under different heat load conditions, only one standard gas water heater needs to be configured for detection and verification, without the need to configure multiple standard gas water heaters. The accuracy verification of the detection device mainly involves the flow stability during the detection work process; when the flow of the detection device is relatively stable, the accuracy and reliability of the detection device during the energy efficiency detection of the gas water heater are higher; when the flow of the detection device is unstable, the accuracy and reliability of the detection device during the energy efficiency detection of the gas water heater are lower. Therefore, it is necessary to verify the flow stability of the detection device. If the heat load of the standard gas water heater changes with the flow rate during verification, or the heat load during the operation of the standard gas water heater is unstable, it will lead to inaccurate verification results of the detection device. To solve the above problems, it is necessary to keep the operating heat load of the standard gas water heater constant, which requires the stable operation of both the air control system assembly 4 and the fan assembly 5, so that the flame of the standard gas water heater remains stable during ignition and combustion. Specifically, the air control system assembly 4 precisely controls the primary air coefficient through the distribution pipe and the proportional valve to optimize the combustion efficiency; the flame distribution is more uniform, the combustion is more stable, effectively reducing the emission concentrations of nitrogen oxides and carbon monoxide, meeting higher environmental protection standards, and having excellent performance. For the fan assembly 5, the fan assembly 5 includes a centrifugal fan 51, a wind distribution device 52, and a wind speed sensor. The wind distribution device 52 is installed at the air outlet of the centrifugal fan 51, and the wind speed sensor is installed on the side where the wind distribution device 52 discharges air. The wind distribution device 52 is used to make the air discharged evenly when the centrifugal fan 51 operates, and the wind speed sensor is used to detect the wind speed on the side where the wind distribution device 52 discharges air. By setting the wind distribution device 52 at the air outlet of the centrifugal fan 51, the wind speed transmitted by the centrifugal fan 51 to the burner assembly 2 is made uniform and stable; at the same time, by setting the wind speed sensor to detect the wind speed on the side where the wind distribution device 52 discharges air, the wind speed signal is fed back to the main controller assembly 9. The main controller assembly 9 compares the wind speed detected by the wind speed sensor with the set standard wind speed, outputs a compensation signal to the centrifugal fan 51, and controls the operation of the centrifugal fan 51 to make the wind speed transmitted by the centrifugal fan 51 to the burner assembly 2 equal to the set standard wind speed. When performing the calibration work of the detection device, first start the standard gas water heater to operate, adjust the operating heat load of the standard gas water heater according to the calibration requirements. After the wind speed of the centrifugal fan 51 is stable and equal to the set standard wind speed, and the gas output in the air control system assembly 4 is stable and equal to the set gas standard output value, record the temperature output value of the detection device to judge the measurement level of the detection device.

[0022] Specifically, in order to enable the burner assembly 2 to maintain a stable heat load output capacity during operation, after the centrifugal fan 51 of the standard gas water heater reaches a stable wind speed equal to the set standard wind speed, the main controller assembly controls the centrifugal fan 51 to operate in a state of stable flow and stable pressure. The air distribution device 52 includes an air distribution plate 521, and a plurality of groups of air distribution unit channels 522 for evenly distributing the outgoing air are arranged in an array on the air distribution plate 521; the air distribution unit channel 522 includes an air inlet channel 5221 opened on the side facing the air outlet of the centrifugal fan 51 and a plurality of air outlet channels 5222 opened on the side facing away from the air outlet of the centrifugal fan 51. Each air outlet channel 5222 is respectively communicated with the air inlet channel 5221 through a ventilation channel 5223. The air inlet channel 5221 and the air outlet channels 5222 both extend parallel in the vertical direction. The air inlet channel 5221 is a frustum-shaped channel structure with a larger outer diameter and a smaller inner diameter, which is convenient for guiding the air discharged from the centrifugal fan 51 into the air inlet channel 5221, then diverting it to each ventilation channel 5223, and then evenly discharging it through the corresponding air outlet channels 5222, achieving the effect of air distribution. Further, in order to improve the air distribution effect of the air distribution plate 521, the air distribution plate 521 is a metal plate uniformly distributed with a microporous structure. The aperture of the micropores on the air distribution plate 521 is between 0.8 mm and 1.5 mm. Part of the air discharged from the centrifugal fan 51 enters the air distribution unit channels 522 for distribution and discharge, and part is distributed and discharged through the micropores. The microporous structure on the air distribution plate 521 can play a certain role in air distribution and pressure relief, thereby improving the air permeability of the air distribution plate 521 and enhancing the air distribution effect.

[0023] The above is only the preferred embodiment of the present invention. As long as the technical solutions that achieve the purpose of the present invention by basically the same means fall within the protection scope of the present invention.

Claims

1. A standard gas water heater, characterized in that: It comprises a housing (1), a burner assembly (2), a heat exchanger assembly (3), an air control system assembly (4), a fan assembly (5), a smoke hood assembly (6), a water pump system assembly (7), a water outlet nozzle assembly (8) and a main controller assembly (9), wherein each assembly component is installed in the housing (1); The burner assembly (2) is used to burn gas to heat the heat exchanger assembly (3). The burner assembly (2) is connected to the gas control system assembly (4) and the fan assembly (5) respectively. The gas control system assembly (4) provides gas for the burner assembly (2) to burn, and the fan assembly (5) provides air for the burner assembly (2) to burn. The heat exchanger assembly (3) is used for water to pass through and transfer heat to the water so as to heat the water. The water inlet end of the heat exchanger assembly (3) is connected to the water pump system assembly (7) through a water pipe, and the water outlet end of the heat exchanger assembly (3) is connected to the water outlet nozzle assembly (8) through a water pipe. The smoke collecting hood assembly (6) is used to process the smoke generated by the burner assembly (2) and discharge the smoke after purification. The smoke collecting hood assembly (6) is connected to the heat exchanger assembly (3); The main controller assembly (9) is respectively connected to the burner assembly (2), the heat exchanger assembly (3), the gas control system assembly (4), the fan assembly (5), the smoke hood assembly (6), the water pump system assembly (7) and the water outlet nozzle assembly (8) through circuits, and controls the operation of each assembly component; The gas control system assembly (4), the fan assembly (5) and the water pump system assembly (7) are controlled in coordination so that the heat load of the burner assembly (2) is constant when it is working, and the heat load of the burner assembly (2) is adjusted in steps when it is working.

2. A standard gas water heater according to claim 1, characterized in that: The burner assembly (2) comprises a dual-channel combustion chamber (21), a combustion chamber panel assembly (22) and an injection pipe assembly (23); a dual-channel burner (211) is installed in the dual-channel combustion chamber (21); the combustion chamber panel assembly (22) covers the opening of the dual-channel combustion chamber (21); an air inlet end of the injection pipe assembly (23) is connected to the gas control system assembly (4); an air outlet end of the injection pipe assembly (23) passes through the combustion chamber panel assembly (22) and is connected to the dual-channel burner (211); the gas control system assembly (4) transmits gas to the dual-channel burner (211) through the injection pipe assembly (23); and the injection pipe assembly (23) causes the gas to be pressurized and injected.

3. A standard gas water heater according to claim 2, characterized in that: The dual-channel burner (211) comprises a combustion chamber outer shell (2111), a combustion chamber inner shell (2112) and a combustion chamber core (2113); the combustion chamber outer shell (2111) is mounted on the outer side wall of the combustion chamber inner shell (2112); a first flame injection hole (2114) is formed between the combustion chamber inner shell (2112) and the combustion chamber outer shell (2111); the combustion chamber core (2113) is mounted inside the combustion chamber inner shell (2112); a second flame injection hole (2115) is formed between the combustion chamber inner core (2113) and the combustion chamber inner shell (2112); and the first flame injection holes (2114) are distributed on the outer side of the second flame injection holes (2115).

4. A standard gas water heater according to claim 3, characterized in that: The combustion chamber shell (2111) is provided with a first gas injection channel (2116) connected to the first flame injection hole (2114), and the combustion chamber inner shell (2112) is provided with a second gas injection channel (2117) connected to the second flame injection hole (2115). The first gas injection channel (2116) and the second gas injection channel (2117) are respectively connected to the injection pipe assembly (23). The gas is controlled by the injection pipe assembly (23) to enter the first gas injection channel (2116) and the second gas injection channel (2117) respectively, and is ignited and burned from the first flame injection hole (2114) and the second flame injection hole (2115) respectively. A thicker flame is ignited in the first flame injection hole (2114), and a lighter flame is ignited in the second flame injection hole (2115).

5. A standard gas water heater according to claim 4, characterized in that: The gas control system assembly (4) is provided with a gas distribution pipe and a proportional valve. The gas distribution pipe includes an air inlet pipe and two air outlet pipes. The two air outlet pipes are respectively connected to the proportional valves, and the gas flow rate of the corresponding air outlet pipes is controlled by the proportional valves. The proportional valves are connected to the main controller assembly (9) via a circuit.

6. A standard gas water heater according to claim 5, characterized in that: The heat load regulation of standard gas water heaters is set in multiple gears.

7. A standard gas water heater according to claim 1, characterized in that: The fan assembly (5) comprises a centrifugal fan (51), an air balancing device (52) and a wind speed sensor. The air balancing device (52) is installed at the air outlet of the centrifugal fan (51). The wind speed sensor is installed on the air outlet side of the air balancing device (52). The air balancing device (52) is used to make the centrifugal fan (51) discharge air evenly when the centrifugal fan (51) is working. The wind speed sensor is used to detect the wind speed on the air outlet side of the air balancing device (52) and feed back the wind speed signal to the main controller assembly (9).

8. A standard gas water heater according to claim 7, characterized in that: The main controller assembly (9) compares the wind speed detected by the wind speed sensor with a set standard wind speed, outputs a compensation signal to the centrifugal fan (51), and controls the centrifugal fan (51) to operate so that the wind speed transmitted by the centrifugal fan (51) to the burner assembly (2) is equal to the set standard wind speed.

9. A standard gas water heater according to claim 8, characterized in that: After the wind speed of the centrifugal fan (51) of the standard gas water heater is stable and equal to the set standard wind speed, the controller assembly controls the centrifugal fan (51) to operate in a state of steady flow and steady pressure.

10. A standard gas water heater according to claim 7, characterized in that: The air balancing device (52) comprises an air balancing plate (521), on which a plurality of groups of air balancing unit channels (522) for evenly distributing the outgoing air are arranged in an array; the air balancing plate (521) is a metal plate evenly distributed with a microporous structure.

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