Gas water heater and supercharging control method, system and storage medium thereof

Abstract

The application discloses a gas water heater, a pressurization control method and system thereof and a storage medium, and relates to the technical field of water heaters. The gas water heater comprises a water inlet pipe, and further comprises a cold water pipe and a pressurization pump. A first flow-limiting electromagnetic valve is arranged on the cold water pipe, and a second flow-limiting electromagnetic valve is arranged on the water inlet pipe. The pressurization control method comprises the following steps: judging whether the gas water heater is set with a cold water pressurization priority mode or a hot water pressurization priority mode, and if not, controlling the first flow-limiting electromagnetic valve, the second flow-limiting electromagnetic valve and the pressurization pump to be opened so as to enter a cold water and hot water dual pressurization mode. The gas water heater with the cold and hot water pipes is provided with the pressurization pump. When it is judged whether the gas water heater is set with the cold water pressurization priority mode or the hot water pressurization priority mode, the first flow-limiting electromagnetic valve, the second flow-limiting electromagnetic valve and the pressurization pump are controlled to be opened so as to enter the cold water and hot water dual pressurization mode, and the function of cold and hot water dual pressurization is realized.

Description

Technical Field

[0001] This invention relates to the field of gas water heater control technology, and in particular to a gas water heater and its pressurization control method, system and storage medium. Background Technology

[0002] Current gas water heater technology commonly uses a water pump to pressurize the incoming water flow, ensuring sufficient water flow for users. When a user uses water under low pressure, the gas water heater detects the insufficient water flow and controls the water pump to start pressurizing. However, this pressurization generally only applies to hot water flow and cannot increase the pressure of cold water flow in the user's home. If the water flow in a user's home is too low, it typically manifests as both cold and hot water flow being low. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the defect that the pressurization method in the prior art can only pressurize the hot water flow and cannot pressurize the cold water flow, and to provide a gas water heater and its pressurization control method, system and storage medium.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] The first aspect of this invention provides a pressure boosting control method for a gas water heater, the gas water heater including an inlet pipe, a cold water pipe, and a booster pump, wherein a first flow-limiting solenoid valve is installed on the cold water pipe, and a second flow-limiting solenoid valve is installed on the inlet pipe, the pressure boosting control method comprising:

[0006] Determine whether the gas water heater is set to either cold water pressure boosting priority mode or hot water pressure boosting priority mode. If not, control the first flow limiting solenoid valve, the second flow limiting solenoid valve, and the booster pump to open to enter the dual pressure boosting mode for both cold and hot water.

[0007] Preferably, the boost control method further includes:

[0008] If it is determined that the gas water heater is set to cold water pressure boosting priority mode, then the first flow limiting solenoid valve and the booster pump are both opened, and the second flow limiting solenoid valve is closed, so as to enter the cold water pressure boosting priority mode.

[0009] Alternatively, if it is determined that the gas water heater is set to hot water pressure boosting priority mode, then the second flow limiting solenoid valve and the booster pump are both opened, and the first flow limiting solenoid valve is closed, so as to enter the hot water pressure boosting priority mode.

[0010] Preferably, the gas water heater further includes a hot water pipe; the pressure boosting control method further includes:

[0011] Determine whether the gas water heater has entered the pressurization mode. If not, detect whether the cold water flow rate of the cold water pipe is greater than the first cold water flow rate threshold and less than the second cold water flow rate threshold and continues for at least the first preset time. If yes, determine whether the gas water heater is set to the cold water pressurization priority mode.

[0012] Preferably, the boost control method further includes:

[0013] If the cold water flow rate is detected to be no greater than the first cold water flow rate threshold, or the cold water flow rate is not less than the second cold water flow rate threshold, or the cold water flow rate does not last for at least the first preset time, then it is detected whether the hot water flow rate of the hot water pipe is greater than the first hot water flow rate threshold and less than the second hot water flow rate threshold and lasts for at least the first preset time. If so, it is determined whether the gas water heater is set to hot water pressure boosting priority mode.

[0014] And / or,

[0015] The boost control method further includes:

[0016] If it is determined that the gas water heater has entered the booster mode, then it is determined whether the gas water heater is in the cold water booster priority mode and the cold water flow rate in the cold water pipe is zero, or whether the gas water heater is in the hot water booster priority mode and the hot water flow rate in the hot water pipe is zero, or whether the gas water heater is in both cold and hot water booster modes and both the cold water flow rate in the cold water pipe and the hot water flow rate in the hot water pipe are zero. If yes, then the booster pump is controlled to shut down, the second flow-limiting solenoid valve is opened, and the cold water booster priority mode is exited; or the booster pump is controlled to shut down, the first flow-limiting solenoid valve is opened, and the hot water booster priority mode is exited; or the booster pump is controlled to shut down, and the cold and hot water dual booster modes are exited. If no, then the step of determining whether the gas water heater has entered the booster mode is repeated.

[0017] A second aspect of the present invention provides a pressure boosting control system for a gas water heater, the gas water heater including an inlet pipe, a cold water pipe and a booster pump, a first flow-limiting solenoid valve being installed on the cold water pipe, and a second flow-limiting solenoid valve being installed on the inlet pipe, the pressure boosting control system comprising:

[0018] The first judgment module is used to determine whether the gas water heater is set to cold water pressure boosting priority mode or hot water pressure boosting priority mode. If not, the first control module is invoked.

[0019] The first control module is used to control the first flow-limiting solenoid valve, the second flow-limiting solenoid valve, and the booster pump to open, so as to enter the dual-boost mode for cold water and hot water.

[0020] Preferably, the boost control system further includes:

[0021] The second control module is used to control the first flow limiting solenoid valve and the booster pump to open and the second flow limiting solenoid valve to close if it is determined that the gas water heater is set to the cold water boosting priority mode, so as to enter the cold water boosting priority mode.

[0022] Alternatively, a third control module is configured to, if it is determined that the gas water heater is set to hot water pressure boosting priority mode, control both the second flow limiting solenoid valve and the booster pump to open, and the first flow limiting solenoid valve to close, so as to enter the hot water pressure boosting priority mode.

[0023] Preferably, the gas water heater further includes a hot water pipe; the booster control system further includes:

[0024] The second judgment module is used to determine whether the gas water heater has entered the pressurization mode. If not, the first detection module is called.

[0025] The first detection module is used to detect whether the cold water flow rate of the cold water pipeline is greater than the first cold water flow rate threshold and less than the second cold water flow rate threshold and continues for at least the first preset time. If so, the first judgment module is invoked.

[0026] The first judgment module is used to determine whether the gas water heater is set to cold water pressure boosting priority mode.

[0027] Preferably, the boost control system further includes:

[0028] The second detection module is used to detect whether the hot water flow rate of the hot water pipe is greater than the first hot water flow rate threshold and less than the second hot water flow rate threshold and lasts for at least the first preset time if the cold water flow rate is not greater than the first cold water flow rate threshold or the cold water flow rate is not less than the second cold water flow rate threshold or has not lasted for at least the first preset time. If so, the first judgment module is invoked.

[0029] The first judgment module is used to determine whether the gas water heater is set to hot water pressure boosting priority mode;

[0030] And / or,

[0031] The booster control system also includes:

[0032] The third judgment module determines whether the gas water heater has entered the pressurization mode. If the gas water heater is in the cold water pressurization priority mode and the cold water flow rate of the cold water pipe is zero, or whether the gas water heater is in the hot water pressurization priority mode and the hot water flow rate of the hot water pipe is zero, or whether the gas water heater is in the cold water and hot water dual pressurization mode and both the cold water flow rate of the cold water pipe and the hot water flow rate of the hot water pipe are zero. If so, the fourth control module is called.

[0033] The fourth control module is used to control the booster pump to shut down, open the second flow-limiting solenoid valve, and exit the cold water booster priority mode; or control the booster pump to shut down, open the first flow-limiting solenoid valve, and exit the hot water booster priority mode; or control the booster pump to shut down and exit the cold water and hot water dual booster mode; if not, the second judgment module is invoked.

[0034] A third aspect of the present invention provides a gas water heater, including a memory, a processor, and a computer program stored in the memory and for running on the processor, wherein the processor executes the computer program to implement the pressure boosting control method for the gas water heater as described in the first aspect.

[0035] A fourth aspect of the present invention provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the pressurization control method for a gas water heater as described in the first aspect.

[0036] Based on common knowledge in the field, the above-mentioned preferred conditions can be combined arbitrarily to obtain various preferred embodiments of the present invention.

[0037] The positive and progressive effects of this invention are as follows:

[0038] This invention uses a gas water heater with cold and hot water pipes equipped with a booster pump. When it is determined whether the gas water heater is set to cold water booster priority mode or hot water booster priority mode, the first flow limiting solenoid valve, the second flow limiting solenoid valve and the booster pump are all opened to enter the cold water and hot water dual booster mode, thus realizing the function of cold and hot water dual booster. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the structure of the gas water heater in Embodiments 1 and 2 of the present invention.

[0040] Figure 2 This is a first flowchart of the pressurization control method for a gas water heater according to Embodiment 1 of the present invention.

[0041] Figure 3 This is a second flowchart of the pressurization control method for a gas water heater according to Embodiment 1 of the present invention.

[0042] Figure 4 This is the third flowchart of the pressurization control method for a gas water heater according to Embodiment 1 of the present invention.

[0043] Figure 5 This is a schematic diagram of the booster control system of the gas water heater according to Embodiment 2 of the present invention.

[0044] Figure 6 This is a schematic diagram of the electronic device used to implement the pressurization control method for a gas water heater according to Embodiment 3 of the present invention. Detailed Implementation

[0045] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0046] Example 1

[0047] This embodiment provides a method for pressurizing a gas water heater, such as... Figure 1 As shown, the gas water heater includes an inlet pipe 1, a cold water pipe 2, a booster pump 3, a gas proportional valve 4, an inlet water temperature sensor 5, a first water flow sensor 6, a second water flow sensor 7, an electronic controller assembly 8, a heat exchanger 9, an outlet pipe 10, a hot water pipe 11, a burner 12, a fan 13, an outlet water temperature sensor 14, a hot water outlet 15, a cold water outlet 16, an inlet 17, and a gas inlet 18. A first flow-limiting solenoid valve 19 is installed on the cold water pipe 2, and a second flow-limiting solenoid valve 20 is installed on the inlet pipe 1. It should be noted that the gas water heater of this application has a cold water pipe 2 connected in parallel at the inlet, and the first water flow sensor 6 and the first flow-limiting solenoid valve 19 are installed on the cold water pipe 2. The cold water pipe 2 is connected to the cold water outlet 16. In addition, a booster pump 3 is installed upstream of the parallel cold water pipe 2, and a second flow-limiting solenoid valve 20 and a second water flow sensor 7 are installed downstream of it. Figure 2 As shown, the boost control method includes:

[0048] Step 101: Determine whether the gas water heater is set to cold water pressure boosting priority mode or hot water pressure boosting priority mode (for example, step 101 includes: step 101-1 determining whether the gas water heater is set to cold water pressure boosting priority mode, or step 101-2 determining whether the gas water heater is set to hot water pressure boosting priority mode). If not, proceed to step 102.

[0049] Step 102: Control the first flow limiting solenoid valve, the second flow limiting solenoid valve, and the booster pump to open, so as to enter the dual-boost mode for cold water and hot water.

[0050] In this embodiment, the first flow-limiting solenoid valve 19 and the second flow-limiting solenoid valve 20 are both special electrically controlled water circuit switching valves. When opened, the water circuit is fully connected, and when closed, the water circuit is not cut off, but the water flow is limited to below the set flow rate.

[0051] In an alternative embodiment, such as Figure 3 As shown, the boost control method also includes:

[0052] Step 103: If it is determined that the gas water heater is set to cold water pressure boosting priority mode, then control the first flow limiting solenoid valve and the booster pump to open, and the second flow limiting solenoid valve to close, so as to enter the cold water pressure boosting priority mode.

[0053] Alternatively, if it is determined that the gas water heater is set to hot water pressure boosting priority mode, then the second current limiting solenoid valve and the booster pump are both opened, and the first current limiting solenoid valve is closed, in order to enter the hot water pressure boosting priority mode (for example, step 103 includes: step 103-1, if it is determined that the gas water heater is set to cold water pressure boosting priority mode, then the first current limiting solenoid valve and the booster pump are both opened, and the second current limiting solenoid valve is closed, in order to enter the cold water pressure boosting priority mode; or step 103-2, if it is determined that the gas water heater is set to hot water pressure boosting priority mode, then the second current limiting solenoid valve and the booster pump are both opened, and the first current limiting solenoid valve is closed, in order to enter the hot water pressure boosting priority mode).

[0054] In an optional embodiment, the gas water heater further includes a hot water pipe 11; as Figure 4 As shown, the boost control method also includes:

[0055] Step 100: Determine if the gas water heater has entered the pressurization mode. If not, proceed to step 100-1; if yes, proceed to step 100-3.

[0056] Step 100-1: Detect whether the cold water flow rate of the cold water pipeline is greater than the first cold water flow rate threshold and less than the second cold water flow rate threshold and continues for at least the first preset time. If yes, proceed to step 101-1; if no, proceed to step 100-2.

[0057] Step 101-1: Determine if the gas water heater is set to cold water pressure boosting priority mode;

[0058] In this embodiment, the first cold water flow rate threshold, the second cold water flow rate threshold, and the first preset time are all set according to the actual situation, and no specific limitation is made here.

[0059] In this embodiment, the cold water flow rate of the cold water pipeline is detected by the first water flow sensor 6.

[0060] Step 100-2: Detect whether the hot water flow rate of the hot water pipe is greater than the first hot water flow rate threshold and less than the second hot water flow rate threshold and continues for at least the first preset time. If yes, proceed to step 101-2; if no, proceed to step 100.

[0061] Step 101-2: Determine if the gas water heater is set to hot water pressure boosting priority mode;

[0062] In this embodiment, the first hot water flow rate threshold and the second hot water flow rate threshold are set according to the actual situation, and no specific limitation is made here.

[0063] Step 100-3: Determine whether the gas water heater is in cold water pressure boosting priority mode and the cold water flow rate in the cold water pipe is zero, or whether the gas water heater is in hot water pressure boosting priority mode and the hot water flow rate in the hot water pipe is zero, or whether the gas water heater is in both cold water and hot water pressure boosting mode and both the cold water flow rate in the cold water pipe and the hot water flow rate in the hot water pipe are zero. If yes, proceed to step 100-4; if no, return to step 100.

[0064] Step 100-4: Control the booster pump to shut down, open the second flow-limiting solenoid valve, and exit the cold water booster priority mode; or control the booster pump to shut down, open the first flow-limiting solenoid valve, and exit the hot water booster priority mode; or control the booster pump to shut down and exit the cold water and hot water dual booster mode.

[0065] In practical implementation, if the user sets the pressure boosting mode, that is, if it is determined that the gas water heater has entered the pressure boosting mode, then when the user uses cold water, the gas water heater can detect the cold water flow rate q1 in the cold water pipe 2 through the first water flow sensor 6. If the cold water flow rate q1 is greater than the first cold water flow rate threshold q c (e.g., minimum cold water detection flow rate) and less than the second cold water flow rate threshold q cz If the cold water flow rate is normal and continues for at least the first preset time (e.g., for more than s seconds), it is determined that the cold water flow rate is too low. If the user has also set the cold water boosting priority mode, the first flow limiting solenoid valve will be opened, the second flow limiting solenoid valve will be closed, the booster pump will be turned on, and the cold water boosting priority mode will be entered.

[0066] It should be noted that when the cold water pressure boosting priority mode is activated, hot water flow will still be available if the user has a hot water demand, but the hot water flow will be limited to the set hot water flow rate q. 2s The following is to prevent excessive hot water flow from affecting the cold water pressurization effect. This mode means that in the cold water pressurization priority mode, the user's hot water demand will be sacrificed to ensure that the cold water flow reaches its maximum.

[0067] Additionally, if the user has not set the cold water pressure boosting priority mode, the first flow limiting solenoid valve will be opened, the second flow limiting solenoid valve will be opened, the booster pump will be turned on, and the system will enter the dual pressure boosting mode for both cold and hot water. It should be noted that when the system is in the dual pressure boosting mode for both cold and hot water, if the user also has a need for hot water, the hot water flow will be boosted by the booster pump at the same time.

[0068] Furthermore, if the cold water flow rate drops to zero after entering the cold water boosting priority mode, the booster pump will be shut down, the second flow-limiting solenoid valve will be opened, and the cold water boosting priority mode will be exited. If both the cold water flow rate and the hot water flow rate drop to zero after entering the cold water and hot water dual boosting mode, the booster pump will be shut down, and the cold water and hot water dual boosting mode will be exited.

[0069] When a user uses hot water, the gas water heater can detect the hot water flow rate q2 in the hot water pipe 11 through the second water flow sensor 7. If the hot water flow rate q2 is greater than the first hot water flow rate threshold q r (e.g., minimum hot water flow rate) and less than the second hot water flow rate threshold q rz If the hot water flow rate is normal and continues for at least the first preset time (e.g., for more than s seconds), it is determined that the hot water flow rate is too low. If the user has also set the hot water pressure boosting priority mode, the first flow limiting solenoid valve is closed, the second flow limiting solenoid valve is opened, the booster pump is turned on, and the hot water pressure boosting priority mode is entered.

[0070] It should be noted that when the hot water pressurization priority mode is activated, if the user also needs cold water, there will still be a cold water flow, but the cold water flow will be limited to the set hot water flow rate q. 1s The following is to prevent excessive cold water flow from affecting the hot water pressurization effect. This mode means that in the hot water pressurization priority mode, the user's cold water demand will be sacrificed to ensure that the hot water flow reaches its maximum.

[0071] Additionally, if the user has not set a hot water pressure boosting priority mode, the first flow limiting solenoid valve will be opened, the second flow limiting solenoid valve will be opened, the booster pump will be turned on, and the system will enter a dual-pressure boosting mode for both cold and hot water. It should be noted that if the user has a cold water demand while in the dual-pressure boosting mode for both cold and hot water, the cold water flow will be boosted by the booster pump at the same time.

[0072] Furthermore, if the hot water flow rate drops to zero after entering the hot water boosting priority mode, the booster pump will be shut off, the first flow-limiting solenoid valve will be opened, and the hot water boosting priority mode will be exited. If both the cold water and hot water flow rates drop to zero after entering the cold water and hot water dual boosting mode, the booster pump will be shut off, and the cold water and hot water dual boosting mode will be exited.

[0073] The hot and cold water priority pressurization mode set in this embodiment can maximize the flow rate of the water circuit that the user needs to pressurize. Furthermore, the gas water heater with hot and cold water pipelines can monitor and control both the hot water flow rate and the cold water flow rate used by the user, thus improving the user experience.

[0074] This invention uses a gas water heater with cold and hot water pipes equipped with a booster pump. When it is determined whether the gas water heater is set to cold water booster priority mode or hot water booster priority mode, the first flow limiting solenoid valve, the second flow limiting solenoid valve and the booster pump are all opened to enter the cold water and hot water dual booster mode, thus realizing the function of cold and hot water dual booster.

[0075] Example 2

[0076] This embodiment provides a pressure boosting control system for a gas water heater, such as... Figure 1 As shown, the gas water heater includes an inlet pipe 1, a cold water pipe 2, a booster pump 3, a gas proportional valve 4, an inlet water temperature sensor 5, a first water flow sensor 6, a second water flow sensor 7, an electronic controller assembly 8, a heat exchanger 9, an outlet pipe 10, a hot water pipe 11, a burner 12, a fan 13, an outlet water temperature sensor 14, a hot water outlet 15, a cold water outlet 16, an inlet 17, and a gas inlet 18. A first flow-limiting solenoid valve 19 is installed on the cold water pipe 2, and a second flow-limiting solenoid valve 20 is installed on the inlet pipe 1. It should be noted that the gas water heater of this application has a cold water pipe 2 connected in parallel at the inlet, and the first water flow sensor 6 and the first flow-limiting solenoid valve 19 are installed on the cold water pipe 2. The cold water pipe 2 is connected to the cold water outlet 16. In addition, a booster pump 3 is installed upstream of the parallel cold water pipe 2, and a second flow-limiting solenoid valve 20 and a second water flow sensor 7 are installed downstream of it. Figure 5 As shown, the boost control system includes: a first judgment module 21 and a first control module 22;

[0077] The first judgment module 21 is used to determine whether the gas water heater is set to cold water pressure boosting priority mode or hot water pressure boosting priority mode. If not, the first control module 22 is called.

[0078] The first control module 22 is used to control the opening of the first flow limiting solenoid valve, the second flow limiting solenoid valve, and the booster pump to enter the dual-boost mode for cold water and hot water.

[0079] In this embodiment, the first flow-limiting solenoid valve 19 and the second flow-limiting solenoid valve 20 are both special electrically controlled water circuit switching valves. When opened, the water circuit is fully connected, and when closed, the water circuit is not cut off, but the water flow is limited to below the set flow rate.

[0080] In an alternative embodiment, such as Figure 5As shown, the booster control system also includes: a second control module 23 and a third control module 24;

[0081] The second control module 23 is used to control the first flow limiting solenoid valve and the booster pump to open and the second flow limiting solenoid valve to close if it is determined that the gas water heater is set to the cold water boosting priority mode, so as to enter the cold water boosting priority mode.

[0082] Alternatively, the third control module 24 is used to control the second flow-limiting solenoid valve and the booster pump to open and the first flow-limiting solenoid valve to close if it is determined that the gas water heater is set to hot water boosting priority mode, so as to enter the hot water boosting priority mode.

[0083] In an optional embodiment, the gas water heater further includes a hot water pipe 11; as Figure 5 As shown, the boost control system also includes: a second judgment module 25 and a first detection module 26;

[0084] The second judgment module 25 is used to determine whether the gas water heater has entered the pressurization mode. If not, the first detection module 26 is called.

[0085] The first detection module 26 is used to detect whether the cold water flow rate of the cold water pipeline is greater than the first cold water flow rate threshold and less than the second cold water flow rate threshold and continues for at least the first preset time. If so, the first judgment module 21 is called.

[0086] In this embodiment, the first cold water flow rate threshold, the second cold water flow rate threshold, and the first preset time are all set according to the actual situation, and no specific limitation is made here.

[0087] In this embodiment, the cold water flow rate of the cold water pipeline is detected by the first water flow sensor 6.

[0088] The first judgment module 21 is used to determine whether the gas water heater is set to cold water pressure boosting priority mode.

[0089] In an alternative embodiment, such as Figure 5 As shown, the boost control system also includes: a second detection module 27;

[0090] The second detection module 27 is used to detect whether the hot water flow rate of the hot water pipe is greater than the first hot water flow rate threshold and less than the second hot water flow rate threshold and lasts for at least the first preset time if the cold water flow rate is not greater than the first cold water flow rate threshold or is not less than the second cold water flow rate threshold or has not lasted for at least the first preset time. If so, the first judgment module 21 is called.

[0091] The first judgment module 21 is used to determine whether the gas water heater is set to hot water pressure boosting priority mode;

[0092] In this embodiment, the first hot water flow rate threshold and the second hot water flow rate threshold are set according to the actual situation, and no specific limitation is made here.

[0093] In an alternative embodiment, such as Figure 5 As shown, the boost control system also includes: a third judgment module 28 and a fourth control module 29;

[0094] If the third judgment module 28 determines that the gas water heater has entered the pressurization mode, it determines whether the gas water heater is in the cold water pressurization priority mode and the cold water flow rate of the cold water pipe is equal to zero, or whether the gas water heater is in the hot water pressurization priority mode and the hot water flow rate of the hot water pipe is equal to zero, or whether the gas water heater is in the cold water and hot water dual pressurization mode and the cold water flow rate of the cold water pipe and the hot water flow rate of the hot water pipe are both equal to zero. If so, the fourth control module 29 is called.

[0095] The fourth control module 29 is used to control the booster pump to shut down, open the second flow-limiting solenoid valve, and exit the cold water booster priority mode; or control the booster pump to shut down, open the first flow-limiting solenoid valve, and exit the hot water booster priority mode; or control the booster pump to shut down and exit the cold water and hot water dual booster mode; otherwise, the second judgment module 25 is called.

[0096] In practical implementation, if the user sets the pressure boosting mode, that is, if it is determined that the gas water heater has entered the pressure boosting mode, then when the user uses cold water, the gas water heater can detect the cold water flow rate q1 in the cold water pipe 2 through the first water flow sensor 6. If the cold water flow rate q1 is greater than the first cold water flow rate threshold q c (e.g., minimum cold water detection flow rate) and less than the second cold water flow rate threshold q cz If the cold water flow rate is normal and continues for at least the first preset time (e.g., for more than s seconds), it is determined that the cold water flow rate is too low. If the user has also set the cold water boosting priority mode, the first flow limiting solenoid valve will be opened, the second flow limiting solenoid valve will be closed, the booster pump will be turned on, and the cold water boosting priority mode will be entered.

[0097] It should be noted that when the cold water pressure boosting priority mode is activated, hot water flow will still be available if the user has a hot water demand, but the hot water flow will be limited to the set hot water flow rate q. 2s The following is to prevent excessive hot water flow from affecting the cold water pressurization effect. This mode means that in the cold water pressurization priority mode, the user's hot water demand will be sacrificed to ensure that the cold water flow reaches its maximum.

[0098] Additionally, if the user has not set the cold water pressure boosting priority mode, the first flow limiting solenoid valve will be opened, the second flow limiting solenoid valve will be opened, the booster pump will be turned on, and the system will enter the dual pressure boosting mode for both cold and hot water. It should be noted that when the system is in the dual pressure boosting mode for both cold and hot water, if the user also has a need for hot water, the hot water flow will be boosted by the booster pump at the same time.

[0099] Furthermore, if the cold water flow rate drops to zero after entering the cold water boosting priority mode, the booster pump will be shut down, the second flow-limiting solenoid valve will be opened, and the cold water boosting priority mode will be exited. If both the cold water flow rate and the hot water flow rate drop to zero after entering the cold water and hot water dual boosting mode, the booster pump will be shut down, and the cold water and hot water dual boosting mode will be exited.

[0100] When a user uses hot water, the gas water heater can detect the hot water flow rate q2 in the hot water pipe 11 through the second water flow sensor 7. If the hot water flow rate q2 is greater than the first hot water flow rate threshold q r (e.g., minimum hot water flow rate) and less than the second hot water flow rate threshold q rz If the hot water flow rate is normal and continues for at least the first preset time (e.g., for more than s seconds), it is determined that the hot water flow rate is too low. If the user has also set the hot water pressure boosting priority mode, the first flow limiting solenoid valve is closed, the second flow limiting solenoid valve is opened, the booster pump is turned on, and the hot water pressure boosting priority mode is entered.

[0101] It should be noted that when the hot water pressurization priority mode is activated, if the user also needs cold water, there will still be a cold water flow, but the cold water flow will be limited to the set hot water flow rate q. 1s The following is to prevent excessive cold water flow from affecting the hot water pressurization effect. This mode means that in the hot water pressurization priority mode, the user's cold water demand will be sacrificed to ensure that the hot water flow reaches its maximum.

[0102] Additionally, if the user has not set a hot water pressure boosting priority mode, the first flow limiting solenoid valve will be opened, the second flow limiting solenoid valve will be opened, the booster pump will be turned on, and the system will enter a dual-pressure boosting mode for both cold and hot water. It should be noted that if the user has a cold water demand while in the dual-pressure boosting mode for both cold and hot water, the cold water flow will be boosted by the booster pump at the same time.

[0103] Furthermore, if the hot water flow rate drops to zero after entering the hot water boosting priority mode, the booster pump will be shut off, the first flow-limiting solenoid valve will be opened, and the hot water boosting priority mode will be exited. If both the cold water and hot water flow rates drop to zero after entering the cold water and hot water dual boosting mode, the booster pump will be shut off, and the cold water and hot water dual boosting mode will be exited.

[0104] The hot and cold water priority pressurization mode set in this embodiment can maximize the flow rate of the water circuit that the user needs to pressurize. Furthermore, the gas water heater with hot and cold water pipelines can monitor and control both the hot water flow rate and the cold water flow rate used by the user, thus improving the user experience.

[0105] This invention uses a gas water heater with cold and hot water pipes equipped with a booster pump. When it is determined whether the gas water heater is set to cold water booster priority mode or hot water booster priority mode, the first flow limiting solenoid valve, the second flow limiting solenoid valve and the booster pump are all opened to enter the cold water and hot water dual booster mode, thus realizing the function of cold and hot water dual booster.

[0106] Example 3

[0107] Figure 6 This is a schematic diagram of the structure of an electronic device provided in Embodiment 3 of the present invention. For example, the electronic device is a gas water heater, which includes a memory, a processor, and a computer program stored in the memory and used to run on the processor. When the processor executes the program, it implements the pressure boosting control method of the gas water heater in Embodiment 1. Figure 6 The electronic device 30 shown is merely an example and should not impose any limitation on the functionality and scope of use of the embodiments of the present invention.

[0108] like Figure 6 As shown, the electronic device 30 can be manifested as a general-purpose computing device, such as a server device. The components of the electronic device 30 may include, but are not limited to: at least one processor 31, at least one memory 32, and a bus 33 connecting different system components (including memory 32 and processor 31).

[0109] Bus 33 includes a data bus, an address bus, and a control bus.

[0110] The memory 32 may include volatile memory, such as random access memory (RAM) 321 and / or cache memory 322, and may further include read-only memory (ROM) 323.

[0111] The memory 32 may also include a program / utility 325 having a set (at least one) of program modules 324, including but not limited to: an operating system, one or more application programs, other program modules, and program data, each or some combination of these examples may include an implementation of a network environment.

[0112] The processor 31 executes various functional applications and data processing by running computer programs stored in the memory 32, such as the pressurization control method for a gas water heater in Embodiment 1 of the present invention.

[0113] Electronic device 30 can also communicate with one or more external devices 34 (e.g., keyboard, pointing device, etc.). This communication can be performed via input / output (I / O) interface 35. Furthermore, the model-generating device 30 can also communicate with one or more networks (e.g., local area network (LAN), wide area network (WAN), and / or public networks, such as the Internet) via network adapter 36. Figure 6 As shown, network adapter 36 communicates with other modules of the model-generated device 30 via bus 33. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the model-generated device 30, including but not limited to: microcode, device drivers, redundant processors, external disk drive arrays, RAID (disk array) systems, tape drives, and data backup storage systems.

[0114] It should be noted that although several units / modules or sub-units / modules of the electronic device have been mentioned in the detailed description above, this division is merely exemplary and not mandatory. In fact, according to embodiments of the present invention, the features and functions of two or more units / modules described above can be embodied in one unit / module. Conversely, the features and functions of one unit / module described above can be further divided and embodied by multiple units / modules.

[0115] Example 4

[0116] This embodiment provides a computer-readable storage medium storing a computer program that, when executed by a processor, implements the pressurization control method for a gas water heater provided in Embodiment 1.

[0117] The readable storage medium may be more specifically adopted, including but not limited to: portable disk, hard disk, random access memory, read-only memory, erasable programmable read-only memory, optical storage device, magnetic storage device, or any suitable combination thereof.

[0118] In a possible implementation, the present invention can also be implemented as a program product comprising program code, which, when the program product is run on a terminal device, causes the terminal device to execute the pressurization control method for the gas water heater described in Embodiment 1.

[0119] The program code for executing the present invention can be written in any combination of one or more programming languages. The program code can be executed entirely on the user device, partially on the user device, as a standalone software package, partially on the user device and partially on a remote device, or entirely on a remote device.

[0120] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A method of pressure boost control for a gas water heater, the gas water heater including a water inlet pipe, characterised by, The gas water heater also includes a cold water pipe and a booster pump. A first flow-limiting solenoid valve is installed on the cold water pipe, and a second flow-limiting solenoid valve is installed on the inlet pipe. The booster control method includes: Determine whether the gas water heater is set to cold water pressure boosting priority mode or hot water pressure boosting priority mode. If not, control the first flow limiting solenoid valve, the second flow limiting solenoid valve, and the booster pump to open to enter the cold water and hot water dual pressure boosting mode. The boost control method further includes: If it is determined that the gas water heater is set to cold water pressure boosting priority mode, then the first flow limiting solenoid valve and the booster pump are both opened, and the second flow limiting solenoid valve is closed, so as to enter the cold water pressure boosting priority mode. Alternatively, if it is determined that the gas water heater is set to hot water pressure boosting priority mode, then the second flow limiting solenoid valve and the booster pump are both opened, and the first flow limiting solenoid valve is closed, so as to enter the hot water pressure boosting priority mode. Both the first and second flow-limiting solenoid valves ensure that the water circuit is fully open when open, and do not cut off the water circuit when closed, but instead limit the water flow to below the set flow rate.

2. The pressure boosting control method for a gas water heater as described in claim 1, characterized in that, The gas water heater also includes hot water piping; the pressure boosting control method further includes: Determine whether the gas water heater has entered the pressurization mode. If not, detect whether the cold water flow rate of the cold water pipe is greater than the first cold water flow rate threshold and less than the second cold water flow rate threshold and continues for at least the first preset time. If yes, determine whether the gas water heater is set to the cold water pressurization priority mode.

3. The pressure boosting control method for a gas water heater as described in claim 2, characterized in that, The boost control method further includes: If the cold water flow rate is detected to be no greater than the first cold water flow rate threshold, or the cold water flow rate is not less than the second cold water flow rate threshold, or the cold water flow rate does not last for at least the first preset time, then it is detected whether the hot water flow rate of the hot water pipe is greater than the first hot water flow rate threshold and less than the second hot water flow rate threshold and lasts for at least the first preset time. If so, it is determined whether the gas water heater is set to hot water pressure boosting priority mode. And / or, The boost control method further includes: If it is determined that the gas water heater has entered the booster mode, then it is determined whether the gas water heater is in the cold water booster priority mode and the cold water flow rate in the cold water pipe is zero, or whether the gas water heater is in the hot water booster priority mode and the hot water flow rate in the hot water pipe is zero, or whether the gas water heater is in both cold and hot water booster modes and both the cold water flow rate in the cold water pipe and the hot water flow rate in the hot water pipe are zero. If yes, then the booster pump is controlled to shut down, the second flow-limiting solenoid valve is opened, and the cold water booster priority mode is exited; or the booster pump is controlled to shut down, the first flow-limiting solenoid valve is opened, and the hot water booster priority mode is exited; or the booster pump is controlled to shut down, and the cold and hot water dual booster modes are exited. If no, then the step of determining whether the gas water heater has entered the booster mode is repeated.

4. A pressurization control system for a gas water heater, the gas water heater including a water inlet pipe, characterized in that, The gas water heater also includes a cold water pipe and a booster pump. A first flow-limiting solenoid valve is installed on the cold water pipe, and a second flow-limiting solenoid valve is installed on the inlet pipe. The booster control system includes: The first judgment module is used to determine whether the gas water heater is set to cold water pressure boosting priority mode or hot water pressure boosting priority mode. If not, the first control module is invoked. The first control module is used to control the first flow limiting solenoid valve, the second flow limiting solenoid valve, and the booster pump to all open, so as to enter the dual-boost mode for cold water and hot water; The booster control system also includes: The second control module is used to control the first flow limiting solenoid valve and the booster pump to open and the second flow limiting solenoid valve to close if it is determined that the gas water heater is set to the cold water boosting priority mode, so as to enter the cold water boosting priority mode. Alternatively, the third control module is used to control the second flow-limiting solenoid valve and the booster pump to open and the first flow-limiting solenoid valve to close if it is determined that the gas water heater is set to hot water boosting priority mode, so as to enter the hot water boosting priority mode. Both the first and second flow-limiting solenoid valves ensure that the water circuit is fully open when open, and do not cut off the water circuit when closed, but instead limit the water flow to below the set flow rate.

5. The pressurization control system for a gas water heater as described in claim 4, characterized in that, The gas water heater also includes hot water piping; the booster control system also includes: The second judgment module is used to determine whether the gas water heater has entered the pressurization mode. If not, the first detection module is called. The first detection module is used to detect whether the cold water flow rate of the cold water pipeline is greater than the first cold water flow rate threshold and less than the second cold water flow rate threshold and continues for at least the first preset time. If so, the first judgment module is invoked. The first judgment module is used to determine whether the gas water heater is set to cold water pressure boosting priority mode.

6. The pressurization control system for a gas water heater as described in claim 5, characterized in that, The booster control system also includes: The second detection module is used to detect whether the hot water flow rate of the hot water pipe is greater than the first hot water flow rate threshold and less than the second hot water flow rate threshold and lasts for at least the first preset time if the cold water flow rate is not greater than the first cold water flow rate threshold or the cold water flow rate is not less than the second cold water flow rate threshold or has not lasted for at least the first preset time. If so, the first judgment module is invoked. The first judgment module is used to determine whether the gas water heater is set to hot water pressure boosting priority mode; And / or, The booster control system also includes: The third judgment module determines whether the gas water heater has entered the pressurization mode. If the gas water heater is in the cold water pressurization priority mode and the cold water flow rate of the cold water pipe is zero, or whether the gas water heater is in the hot water pressurization priority mode and the hot water flow rate of the hot water pipe is zero, or whether the gas water heater is in the cold water and hot water dual pressurization mode and both the cold water flow rate of the cold water pipe and the hot water flow rate of the hot water pipe are zero. If so, the fourth control module is called. The fourth control module is used to control the booster pump to shut down, open the second flow-limiting solenoid valve, and exit the cold water booster priority mode; or control the booster pump to shut down, open the first flow-limiting solenoid valve, and exit the hot water booster priority mode; or control the booster pump to shut down and exit the cold water and hot water dual booster mode; if not, the second judgment module is invoked.

7. A gas water heater, comprising a memory, a processor, and a computer program stored in the memory and for running on the processor, characterized in that, When the processor executes the computer program, it implements the pressure boosting control method for a gas water heater as described in any one of claims 1-3.

8. A computer-readable storage medium having a computer program stored thereon, characterized in that, When the computer program is executed by the processor, it implements the pressure boosting control method for a gas water heater as described in any one of claims 1-3.

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