Cooling method and system of booster pump, electronic equipment and medium

Abstract

The invention discloses a cooling method and system for a booster pump, electronic equipment and a medium, the cooling method and system are applied to a water dispenser, the water dispenser comprises a jet device, and the method comprises the steps that a water inlet strategy of the jet device is determined; the water inlet strategy is determined according to the temperature of the booster pump; and the water inlet amount of the jet device is adjusted according to the water inlet strategy so as to cool the booster pump. The jet device in the cooling device is utilized, the water inlet amount of the jet device is adjusted, the booster pump is cooled at the optimal water flow speed, heat dissipation of the booster pump is effectively accelerated, and the situation that the service life of the booster pump is shortened or some safety problems are caused due to the fact that the temperature of the booster pump is too high is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of pumps, and in particular to a cooling method and system, electronic equipment and medium for a booster pump. Background Art

[0002] With the development of water purification products, users have higher and higher requirements for flow rate, filter element service life, etc. In order to meet users' demand for flow rate, the flow rate of the booster pump used in the water purifier is getting larger and larger. Correspondingly, the working pressure of the booster pump is getting higher and higher. This makes the heating problem of the booster pump more obvious when it is working. In particular, in order to reduce noise, the outside of the booster pump will be designed with a soundproof shell and some sound-absorbing materials, which makes it more difficult for the booster pump to dissipate heat, so it is necessary to solve the heat dissipation problem of the booster pump and the problem of high noise when the booster pump is working. Summary of the invention

[0003] The technical problem to be solved by the present invention is to overcome the defect of the difficulty in heat dissipation of the booster pump in the prior art, and to provide a cooling method and system, electronic equipment and medium for the booster pump.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] In a first aspect, a method for cooling a booster pump is provided, which is applied to a water purifier, wherein the water purifier includes an ejector, and the method includes:

[0006] Determining a water inlet strategy for the ejector; the water inlet strategy is determined according to the temperature of the booster pump;

[0007] The water inlet amount of the ejector is adjusted according to the water inlet strategy to cool the booster pump.

[0008] Optionally, determining the water inlet strategy of the ejector includes:

[0009] When the temperature of the booster pump reaches a first temperature, the water intake of the ejector is controlled to be a first threshold; wherein the first threshold is determined according to the structure of the ejector.

[0010] Optionally, the ejector includes a water inlet, and the water purifier further includes a filter element, the wastewater outlet of the filter element is connected to the water inlet of the ejector, and the filter element provides water to the water inlet through the wastewater outlet.

[0011] Optionally, the water purifier further includes a regulating valve, the wastewater outlet of the filter element is connected to the water inlet through a pipeline; the regulating valve is arranged on the pipeline; the regulating valve includes an intermittent gear; and adjusting the water inlet amount of the ejector according to the water inlet strategy includes:

[0012] determining a rotation angle of the intermittent gear according to the water inlet strategy;

[0013] The rotation angle of the intermittent gear is adjusted to adjust the water inflow of the ejector.

[0014] Optionally, the regulating valve further includes a first limit assembly, and the method of adjusting the water inflow of the ejector according to the water inflow strategy further includes:

[0015] When the water purifier is not started, the intermittent gear is controlled to rotate until the intermittent gear is engaged with the first limit assembly, so that the regulating valve is in a closed state.

[0016] Optionally, determining the rotation angle of the intermittent gear according to the water inlet strategy includes:

[0017] determining a current flow rate of water in the ejector according to the water inlet strategy;

[0018] According to the correspondence between the flow rate and the rotation angle, the target rotation angle of the intermittent gear corresponding to the current flow rate is determined.

[0019] Optionally, the regulating valve further includes a second limit assembly, and the method of adjusting the water inflow of the ejector according to the water inflow strategy further includes:

[0020] When the temperature of the boost pump is lower than a first temperature threshold, the intermittent gear is controlled to rotate until the intermittent gear is engaged with the second limit assembly to open the regulating valve; wherein the first temperature is higher than the first temperature threshold.

[0021] In a second aspect, a cooling system of a booster pump is provided, which is applied to a water purifier, wherein the water purifier includes an ejector, and the system includes:

[0022] A determination module, used to determine a water inlet strategy for the ejector; the water inlet strategy is determined according to the temperature of the booster pump;

[0023] The regulating module is used to regulate the water intake of the ejector according to the water intake strategy so as to cool the booster pump.

[0024] In a third aspect, an electronic device is provided, comprising a memory, a processor, and a computer program stored in the memory and used to run on the processor, wherein when the processor executes the computer program, the method for cooling the booster pump as described in the first aspect is implemented.

[0025] In a fourth aspect, a computer storage medium is provided, on which a computer program is stored, and when the computer program is executed by a processor, the method for cooling the booster pump as described in the first aspect is implemented.

[0026] The positive and progressive effect of the present invention is that the ejector in the cooling device is utilized to adjust the water inlet of the ejector to achieve cooling of the booster pump at a better water flow rate, thereby effectively accelerating the heat dissipation of the booster pump and avoiding the booster pump temperature being too high, thereby reducing the life of the booster pump or causing some safety problems. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A schematic structural diagram of a temperature reduction device for a booster pump provided in one embodiment of the present invention;

[0028] Figure 2 A schematic diagram of the structure of an ejector of a temperature reduction device for a booster pump provided in one embodiment of the present invention;

[0029] Figure 3 A schematic diagram of a housing of a booster pump of a temperature reduction device for a booster pump provided in one embodiment of the present invention;

[0030] Figure 4 A schematic diagram of the structure of a regulating valve of a temperature reduction device for a booster pump provided in one embodiment of the present invention;

[0031] Figure 5 A schematic structural diagram of a regulating valve of a temperature reduction device for a booster pump provided in another embodiment of the present invention;

[0032] Figure 6 A flow chart of a method for cooling a booster pump provided in one embodiment of the present invention;

[0033] Figure 7 A structural diagram of an ejector for a method for cooling a booster pump provided by another embodiment of the present invention;

[0034] Figure 8 A schematic diagram of a cross-sectional view of a regulating valve flow passage of a method for cooling a booster pump provided in one embodiment of the present invention;

[0035] Fig. 9 A flow chart of a method for cooling a booster pump provided in another embodiment of the present invention;

[0036] Fig.10 A schematic structural diagram of a cooling system for a booster pump provided in an embodiment of the present invention;

[0037] Fig.11 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0038] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0039] In order to resist the transmembrane pressure difference of filtered water, a booster pump needs to be installed in front of the nanofiltration membrane or RO membrane to provide pressure. And as users have higher and higher requirements for flow rate, filter element service life, etc., in order to meet users' demand for flow rate, the flow rate of the booster pump used in the water purifier is also getting larger and larger. Correspondingly, the working pressure of the booster pump is getting higher and higher, which makes the heating problem of the booster pump more obvious when working. In particular, in order to reduce noise, the outside of the booster pump will be designed with a soundproof shell and some sound-absorbing materials, which makes it more difficult for the booster pump to dissipate heat.

[0040] Based on this problem, an embodiment of the present invention provides a temperature reduction device for a booster pump, which achieves a good temperature reduction effect on the booster pump. Figure 1 A schematic structural diagram of a cooling device for a booster pump provided in an embodiment of the present invention, Figure 2 A schematic diagram of the ejector structure of a cooling device for a booster pump provided in an embodiment of the present invention, the cooling device is used to cool the booster pump, the cooling device includes an ejector 13, the ejector 13 includes an output port 21, a water inlet 23 and an air inlet 22, the output port 21 is connected to the housing 14 of the booster pump, the booster pump is arranged in the housing 14, the ejector 13 is used to mix the water entering through the water inlet 23 and the air entering through the air inlet 22 into a water-gas mixture, and output the water-gas mixture to the booster pump through the output port, the direction indicated by the arrow 21 is the flow direction of the water-gas mixture, the direction indicated by the arrow 22 is the flow direction of the air, and the direction indicated by the arrow 23 is the flow direction of the water.

[0041] In one embodiment, Figure 2 As shown, the ejector is a venturi tube structure, which sucks air from the air inlet 22 and injects water from the water inlet 23 through the negative pressure generated by the change of the axial diameter of the venturi tube. At the same time, when the water-gas mixture is ejected from the output port 21 of the ejector, high-speed strong shear force and high-frequency pressure changes are generated, and the air enters the water in the form of smaller particles, and even becomes a small bubble state at the micron level.

[0042] The source of water includes but is not limited to waste water output through the outlet of the filter element, filtered clean water, and water flowing out of the faucet.

[0043] In this embodiment, the ejector in the cooling device is used to output the water-gas mixture to the boosting pump, and the incorporated air is compressed into micron-sized bubbles. When the water-gas mixture enters the cooling device of the boosting pump, it is in the form of a relatively high-speed jet, thereby achieving cooling of the boosting pump at an optimal water flow rate, effectively accelerating the heat dissipation of the boosting pump, and avoiding excessive temperature of the boosting pump, which may reduce the life of the boosting pump or cause some safety problems.

[0044] In one embodiment, the cooling device is applied to a water purifier, which includes a filter element, a wastewater outlet of the filter element is connected to a water inlet, and the filter element provides water to the water inlet through the wastewater outlet.

[0045] Nanofiltration and reverse osmosis water purifiers generate wastewater when producing purified water. Generally, the wastewater is directly discharged into the sewer, and the wastewater utilization rate is low. The embodiment provided by the present invention utilizes the characteristic that the water purifier itself generates wastewater, merges the wastewater with air into a water-gas mixture and then outputs it to the booster pump. The gas-liquid mixture with a higher flow rate coming out of the ejector contains both water and small bubbles that will burst. The flowing water will take away the temperature, and the air released when the small bubbles burst will also be mixed with water and take away the temperature. That is, the temperature of the pump can be taken away more quickly and efficiently, the heat dissipation of the booster pump can be accelerated, and at the same time, the wastewater in the water purifier can be recycled to achieve the effect of energy saving and environmental protection.

[0046] In one embodiment, Figure 3 As shown, the housing 14 of the booster pump is sleeved outside the booster pump 31, and the housing is streamlined.

[0047] The cooling device is a streamlined enlarged cavity. Under the action of the cavity, the air and water in the water-gas mixture generated by the ejector will be better mixed, and the micron-sized small bubbles will be partially broken. The streamline shape allows the water-gas mixture to flow with less resistance. The streamline shape fits better with the flow of the wastewater flow field to be cooled. The resistance is minimal when the wastewater passes through, allowing the water-liquid mixture to pass at the optimal flow rate and take away the heat of the booster pump faster. At the same time, the booster pump housing and the booster pump can be directly made into a semi-vacuum state to reduce the noise transmission of the booster pump and achieve noise reduction.

[0048] In one embodiment, the booster pump includes a pump head, which is arranged near the output port of the ejector. The moving part of the booster pump is mainly the pump head. The temperature of the pump head is relatively high. The cooled wastewater enters the pump head of the booster pump, thereby achieving a more efficient and rapid cooling effect on the booster pump.

[0049] In one embodiment, Figure 1 As shown, the cooling device also includes a regulating valve 12. The wastewater outlet of the filter element is connected to the water inlet through a pipeline. The regulating valve 12 is arranged on the pipeline 16. The regulating valve 12 is used to adjust the water flow entering the water inlet.

[0050] The regulating valve is used to adjust the flow of wastewater entering the water inlet. By controlling the water flow entering the cooling device, the pressure difference before and after the ejector nozzle is intelligently adjusted according to the wastewater flow, so as to cool the pump at the optimal water flow rate, effectively speed up the heat dissipation of the booster pump, and avoid the booster pump temperature being too high, which will lead to a reduction in the life of the booster pump.

[0051] In one embodiment, a temperature sensor 15 is further included. The temperature sensor 15 is arranged on the booster pump and is used to detect the temperature of the booster pump.

[0052] When the water flow rate entering the ejector reaches the first threshold, the cooling speed is the fastest. When the amount of wastewater coming out of the water purifier is large, the cooling speed is not the fastest. When it is at the optimal cooling speed, the cooling effect on the booster pump is the best. However, when the regulating valve is controlled to achieve the optimal cooling speed, the wastewater outlet in the filter element will produce a higher pressure, which will affect the life of the filter element to a certain extent. In order to reduce the impact on the life of the filter element as soon as possible, a temperature sensor is set at the cooling structure of the booster pump. Only when the temperature reaches the first temperature, the regulating valve is rotated to the first angle so that the water flow entering the ejector reaches the first threshold, the cooling speed is the fastest, and a better cooling effect is achieved.

[0053] The first temperature is set according to actual conditions, for example, 45° C. The first angle is set according to actual conditions.

[0054] In one embodiment, Figure 1 As shown, the cooling device also includes a flow meter 11 arranged on the pipeline 16, which is used to detect the water flow flowing into the cooling device. The detection result of the flow meter is used for adjusting the opening of the regulating valve, or for displaying the water flow entering the cooling device.

[0055] In one embodiment, a controller is also included, and a temperature sensor 15 is electrically connected to the controller. The temperature sensor monitors the temperature of the boost pump and feeds back data to the controller. The temperature sensor 15 detects once every five minutes. It should be noted that the detection frequency of the temperature sensor in this embodiment is for illustration only. The detection frequency of the temperature sensor is set according to actual conditions. The opening of the control valve is determined according to different temperatures to adjust the water flow entering the ejector. When the water purifier is just started, the control valve is in a fully open state. As the water purifier is used for a longer time, the pump temperature increases and the control valve is also adjusted.

[0056] In one embodiment, Figure 4 As shown, the regulating valve further includes a first limiting assembly 41, a second limiting assembly 42 and an intermittent gear 43. The intermittent gear 43 rotates between the first limiting assembly 41 and the second limiting assembly 42 to adjust the opening of the regulating valve.

[0057] like Figure 4 and Figure 5 As shown, the regulating valve includes a valve core controller 51 and a valve body 52. ​​The valve core controller 51 is used to control the intermittent gear 43. When the water purifier is not started, the valve core controller 51 controls the intermittent gear 43 to touch the first limit assembly 41, the regulating valve is in a closed state, the wastewater channel is closed, and the pressure of the filter element is held back to prevent the problem of a small flow of clean water coming out of the faucet after the pressure is released.

[0058] During the use of the water purifier, the intermittent gear of the regulating valve is controlled to rotate according to the temperature detected by the temperature sensor. The cross-sectional area of ​​the flow channel of the regulating valve will change with the intermittent gear rotation of the regulating valve, thereby controlling the opening of the regulating valve to adjust the water flow entering the water inlet, thereby affecting the water flow rate and achieving a better cooling effect at an optimal flow rate.

[0059] In one embodiment, Figure 4 As shown, a motor gear 44 is also included to drive the intermittent gear 43 to rotate between the first limiting assembly 41 and the second limiting assembly 42.

[0060] When the water purifier is started, the motor 45 of the regulating valve is started, driving the motor gear 44 of the regulating valve to rotate, the motor gear 44 is engaged with the intermittent gear 43, the motor gear 44 drives the intermittent gear 43 to rotate, and the intermittent gear 43 drives the valve core to rotate, thereby controlling the water flow rate of the water inlet.

[0061] When the intermittent gear touches the first limit assembly, the regulating valve is in a closed state, no wastewater passes through, and the water flow rate is zero at this time. When the intermittent gear touches the second limit assembly, the regulating valve is in a fully open state, and the water flow rate is related to the flow channel cross section of the regulating valve, that is, the opening of the regulating valve. The wastewater flow is directly adjusted by the intermittent gear, that is, the flow is directly controlled by the rotation angle of the intermittent gear, making the device lighter.

[0062] Combine the following Figure 1 The working principle of the cooling device of the booster pump is further explained:

[0063] The wastewater generated by the water purifier flows into the pipe 16 through the filter element, and the flow meter 11 detects the water flow rate flowing into the pipe 16. The water flows into the regulating valve 12 through the flow meter 11, and the temperature sensor 15 detects the temperature and transmits it to the controller. The controller controls the rotation angle of the intermittent gear of the regulating valve 12, and the motor of the regulating valve 12 starts, driving the motor gear of the regulating valve 12 to rotate. The motor gear is engaged with the intermittent gear, driving the intermittent gear to rotate between the first limit assembly and the second limit assembly to control the opening of the regulating valve, thereby controlling the size of the water flow rate. The water flows into the ejector 13 through the regulating valve 12. The water inlet of the ejector is used to inject wastewater, and the air inlet is used to inhale external air. At the same time, water and air are mixed into a water-gas mixture, and the water-gas mixture is output to the booster pump through the output port to achieve cooling of the booster pump.

[0064] Combine the following Figure 1 , the cooling method of the booster pump is further explained.

[0065] A method for cooling a booster pump provided by an embodiment of the present invention is applied to a water purifier, the water purifier comprising an ejector, such as Figure 6 As shown, the cooling method comprises the following steps:

[0066] S61. Determine the water inlet strategy of the ejector.

[0067] The water inlet strategy is determined according to the temperature of the booster pump, and the water inlet strategy includes but is not limited to the water inlet volume, water inlet flow rate, water inlet temperature, etc. of the ejector.

[0068] In one embodiment, the ejector includes a water inlet, and the water purifier further includes a filter element, the wastewater outlet of the filter element is connected to the water inlet of the ejector, and the filter element provides water to the water inlet through the wastewater outlet.

[0069] Taking advantage of the fact that the water purifier itself produces wastewater, the limited wastewater and air are merged into a water-gas mixture using an ejector, and the merged air is compressed into micron-sized bubbles. When the water-gas mixture enters the cooling structure of the booster pump, it is in the form of a high-speed jet. The high-flow rate gas-liquid mixture coming out of the ejector contains both water and small bubbles that will burst. The flowing water will take away the temperature, and the air released when the small bubbles burst will also be mixed with water and take away the temperature. This means that the temperature of the pump can be taken away more quickly and efficiently, the heat dissipation of the booster pump can be accelerated, and at the same time, the wastewater in the water purifier can be recycled to achieve energy saving and environmental protection.

[0070] In one embodiment, determining the water inlet strategy of the ejector includes: when the temperature of the booster pump reaches a first temperature, controlling the water inlet amount of the ejector to be a first threshold, wherein the first threshold is determined according to the structure of the ejector.

[0071] The first temperature is set according to actual conditions, for example, 45°C.

[0072] When the temperature of the boost pump is not less than the first temperature, the water inlet of the ejector is a first threshold value, wherein the first threshold value is the optimal water inlet of the ejector under theoretical conditions. At this time, the ejector reaches the optimal air intake amount, and the cooling effect on the boost pump is the best; when the temperature of the boost pump is lower than the first temperature, the water inlet of the ejector is determined according to the structure of the ejector. Next, the formula is used to specifically explain how to determine the water inlet of the ejector according to the structure of the ejector.

[0073] The amount of water entering the ejector is related to the structure of the ejector. Figure 7 As shown, 71 is the orifice back pressure, 72 is the orifice area, 73 is the orifice front pressure, and 74 is the ejector nozzle. The water inflow of the water purifier is different at different times. For example, the use time, temperature, membrane, etc. will affect the water inflow. In order to make fuller and more efficient use of the wastewater flow, when the water inflow is the first threshold Q b When the ejector inhales the best amount of air, the inhaled air is compressed into micron-sized bubbles. At this time, the relationship between the water intake and the ejector structure is:

[0074]

[0075] Where Q is the amount of water entering the ejector (m 3 / s), μ is the flow coefficient, which is related to the ejector nozzle outlet structure, and A is the ejector nozzle orifice area (m 2 ), ΔP is the pressure difference before and after the ejector nozzle orifice (Pa), ρ is the density of the wastewater (kg / m 3 ), according to the above formula, the water intake under ideal conditions is estimated to be the first threshold value Q b .

[0076] When the amount of water entering the ejector just reaches the first threshold value Q b , the cooling speed is the fastest. When the amount of wastewater coming out of the water purifier is large, the cooling speed is not the fastest. However, when the regulating valve is controlled to achieve the optimal cooling speed, the wastewater end in the filter element will produce a higher pressure, which will affect the life of the filter element of the water purifier to a certain extent. In order to reduce the impact on the life of the filter element, a temperature sensor is set to detect the temperature of the booster pump. When the temperature reaches the first temperature, the water flow entering the ejector reaches the first threshold, which makes the cooling speed the fastest and achieves a better cooling effect while avoiding damage to the filter element.

[0077] S62. Adjust the water inlet amount of the ejector according to the water inlet strategy to cool the booster pump.

[0078] Adjust the water inlet of the ejector, and intelligently adjust the front and rear pressure difference of the ejector nozzle according to the water flow rate, so as to cool the booster pump at the optimal water flow rate and effectively speed up the heat dissipation of the booster pump.

[0079] In one embodiment, the water purifier also includes a regulating valve, the wastewater outlet of the filter element is connected to the water inlet through a pipeline, the regulating valve is arranged on the pipeline, the regulating valve includes an intermittent gear, and the water inlet amount of the ejector is adjusted according to the water inlet strategy, including: determining the rotation angle of the intermittent gear according to the water inlet strategy, and adjusting the rotation angle of the intermittent gear to adjust the water inlet amount of the ejector.

[0080] When the water purifier is just started, the regulating valve is in the fully open state. As the water purifier is used for a longer time, the temperature of the booster pump increases, and the regulating valve is also adjusted. When the water purifier is started, the motor of the regulating valve starts, driving the motor gear of the regulating valve to rotate. The motor gear meshes with the intermittent gear, driving the intermittent gear to rotate, and the intermittent gear transmission drives the valve core to rotate, thereby controlling the flow rate. The rotation angle of the intermittent gear is adjusted to adjust the flow channel cross-section of the regulating valve, thereby controlling the water flow through the regulating valve to adjust the water inlet of the ejector. No flow meter is required, and the wastewater flow is adjusted directly by controlling the rotation of the intermittent gear, making the device more portable.

[0081] In one embodiment, the regulating valve also includes a first limit assembly, and adjusting the water inlet amount of the ejector according to the water inlet strategy also includes: when the water purifier is not started, controlling the intermittent gear to rotate until the intermittent gear engages with the first limit assembly to put the regulating valve in a closed state.

[0082] When the water purifier is not started, close the regulating valve and the wastewater channel. At this time, the pressure of the filter element is held back to prevent the problem of a small flow rate of clean water just coming out of the faucet after the pressure is released. Clean water refers to filtered water.

[0083] When the intermittent gear of the regulating valve touches the first limit assembly, the regulating valve is in a closed state, and no waste water passes through. At this time, the flow velocity v=0m / s.

[0084] In one embodiment, the regulating valve further includes a second limit assembly. When the intermittent gear touches the second limit assembly, the regulating valve is in a fully open state. At this time, the flow rate is related to the flow channel cross-section of the regulating valve, that is, v=q / S, where v is the water flow rate out of the regulating valve (m / s), and q is the amount of wastewater generated by the water purifier (m 3 / s), which is the wastewater volume detected by the flow meter, and S is the flow channel cross-sectional area of ​​the regulating valve (m 2 ).

[0085] In one embodiment, the rotation angle of the intermittent gear is determined according to the water inlet strategy, including: determining the current flow rate of water in the ejector according to the water inlet strategy, and determining the target rotation angle of the intermittent gear corresponding to the current flow rate according to the correspondence between the flow rate and the rotation angle.

[0086] like Figure 8 As shown, the cross-sectional area of ​​the flow channel of the regulating valve changes with the rotation of the intermittent gear of the regulating valve. After the intermittent gear rotates, the regulating valve generates a shielding area 81, α is the angle corresponding to the pipeline area shielded after the regulating valve rotates, and r is the radius of the regulating valve pipeline. According to the flow velocity formula v=q / S, it can be known that the cross-sectional area of ​​the flow channel affects the flow velocity of water, so the relationship between the flow velocity and the rotation angle of the intermittent gear is calculated:

[0087]

[0088] Among them, v is the water flow rate when it leaves the regulating valve, q is the amount of wastewater generated by the water purifier, that is, the amount of wastewater detected by the flow meter, R is the angle of rotation of the regulating valve, r is the radius of the regulating valve pipeline, α is the angle corresponding to the pipeline area blocked after the regulating valve rotates, and the water inlet of the ejector is related to the water flow rate and the cross-sectional area of ​​the flow channel of the regulating valve. The water inlet is proportional to the flow rate. At the same time, α and the rotation angle R of the regulating valve also have the following relationship:

[0089]

[0090] Based on the above relationship, after obtaining the flow velocity v when leaving the regulating valve, combined with the relationship between the flow velocity and the rotation angle of the intermittent gear, the amount of water Q entering the ejector is obtained from the pipe area after the regulating valve rotates. When Q = Q b When the booster pump reaches its best cooling effect, Q b It is the amount of water entering the ejector when the intermittent gear rotates to the target rotation angle.

[0091] In one embodiment, the regulating valve also includes a second limit assembly, which adjusts the water intake of the ejector according to the water intake strategy, and also includes: when the temperature of the boost pump is lower than the first temperature threshold, controlling the intermittent gear to rotate until the intermittent gear engages with the second limit assembly to put the regulating valve in an open state, wherein the first temperature is higher than the first temperature threshold.

[0092] When the temperature of the boost pump is lower than the first threshold, the amount of water entering the ejector is not controlled, the intermittent gear engages with the second limit assembly, and the regulating valve is in a fully open state, wherein the first temperature threshold is set according to actual conditions, for example, when the first temperature is T, the first temperature threshold is 0.55T.

[0093] A temperature sensor is provided at the cooling structure of the boost pump. The temperature sensor monitors the temperature of the boost pump and feeds back to the controller. The temperature sensor detects once every five minutes (it should be noted that the detection frequency of the temperature sensor in this embodiment is for illustration only, and the detection frequency of the temperature sensor is set according to actual conditions). The amount of water Q entering the ejector is determined according to different temperatures, and the flow velocity v of the regulating valve is deduced from Q, and the intermittent gear rotation angle R of the regulating valve is deduced from v. The above data are adjusted in combination with the formula and the measured values.

[0094] When the temperature of the booster pump reaches the set maximum temperature, i.e., the first temperature T, the amount of water entering the ejector is the first threshold value Q b , the flow rate out of the regulating valve is v b , the regulating valve rotation angle is R b ;

[0095] When the temperature of the booster pump is 0.8T, the amount of water entering the ejector is Q1, the flow rate out of the regulating valve is v1, and the rotation angle of the regulating valve is R1;

[0096] When the temperature of the booster pump reaches the first temperature threshold, i.e., 0.55T, the amount of water entering the ejector is Q2, the flow rate out of the regulating valve is v2, and the rotation angle of the regulating valve is R2;

[0097] When the temperature of the booster pump does not reach the first temperature threshold value, i.e., 0.55T, the amount of water entering the ejector is not controlled, the intermittent gear of the regulating valve touches the second limit assembly, and the regulating valve is in a fully open state.

[0098] When the temperature of the booster pump is T, the amount of water entering the ejector is the first threshold value Q b , the first threshold is determined according to the structural size of the ejector.

[0099] When the temperature of the booster pump is not T, the amount of water entering the ejector is determined according to the corresponding relationship between the temperature and the amount of water, wherein the corresponding relationship is obtained through experimental testing or according to fitting historical data.

[0100] Among them, 0.88T and 0.55T are empirical values ​​and can be adjusted according to actual conditions. b , v1, v2, R b The value ranges of R1, R2 are related to the structural dimensions of the ejector and are determined based on the relationship between the flow rate and the rotation angle of the intermittent gear and the relationship between the water inlet and the ejector structure. The water inlet of the ejector is controlled by a regulating valve. The theoretical value is first obtained by the formula, and then fine-tuned according to the measured value to obtain a more accurate water inlet.

[0101] Combine the following Fig. 9 Further explanation of the cooling method of the booster pump:

[0102] Check whether the water purifier is started. If the water purifier is not started, adjust the intermittent gear to touch the first limit component to close the regulating valve. If the water purifier is started, the motor of the regulating valve starts, driving the intermittent gear to rotate until it touches the second limit component, and detect the temperature of the temperature sensor. If the temperature is not less than 0.8T, the motor of the regulating valve starts, and the intermittent gear rotates R1° in the direction of the first limit component, and maintains the position of the intermittent gear until the water purifier is turned off, and the intermittent gear rotates to engage with the second limit component; if the temperature is not less than T, the motor of the regulating valve starts, and the intermittent gear rotates R in the direction of the first limit component. b °, and keep the position of the intermittent gear until the water purifier is turned off, and the intermittent gear rotates and engages with the second limit assembly; if the temperature is less than 0.8T but not less than 0.55T, the motor of the regulating valve starts, and the intermittent gear rotates R2° in the direction of the first limit assembly, and keeps the position of the intermittent gear until the water purifier is turned off, and the intermittent gear rotates and engages with the second limit assembly; if the temperature is less than 0.55T, the amount of water entering the ejector is not controlled, the intermittent gear of the regulating valve touches the second limit assembly, and the regulating valve is in a fully open state. Adjust the cross-sectional area of ​​the flow channel of the regulating valve, change the water flow entering the ejector, achieve multi-stage cooling, and automatically adjust the cooling range.

[0103] The embodiment of the present invention also provides a cooling system for a booster pump. Fig.10 As shown, it is applied to a water purifier, the water purifier includes an ejector, and the system includes:

[0104] A determination module 101 is used to determine a water inlet strategy for the ejector; the water inlet strategy is determined according to the temperature of the booster pump;

[0105] The regulating module 102 is used to regulate the water intake of the ejector according to the water intake strategy to cool the booster pump.

[0106] In one embodiment, the determining module includes:

[0107] The first control unit is used to control the water intake of the ejector to a first threshold value when the temperature of the booster pump reaches a first temperature; wherein the first threshold value is determined according to the structure of the ejector.

[0108] Optionally, the ejector includes a water inlet, and the water purifier further includes a filter element, the wastewater outlet of the filter element is connected to the water inlet of the ejector, and the filter element provides water to the water inlet through the wastewater outlet.

[0109] In one embodiment, the water purifier further includes a regulating valve, the wastewater outlet of the filter element is connected to the water inlet through a pipeline; the regulating valve is arranged on the pipeline; the regulating valve includes an intermittent gear; the regulating module includes:

[0110] A first determining unit, configured to determine a rotation angle of the intermittent gear according to the water inlet strategy;

[0111] The regulating unit is used to adjust the rotation angle of the intermittent gear to adjust the water inflow of the ejector.

[0112] In one embodiment, the regulating valve further includes a first limit assembly, and the regulating module further includes:

[0113] The second control unit is used to control the intermittent gear to rotate when the water purifier is not started, until the intermittent gear is engaged with the first limit assembly, so that the regulating valve is in a closed state.

[0114] In one embodiment, the determining module further includes:

[0115] a second determining unit, configured to determine a current flow rate of water in the ejector according to the water inlet strategy;

[0116] The third determining unit is used to determine the target rotation angle of the intermittent gear corresponding to the current flow rate according to the corresponding relationship between the flow rate and the rotation angle.

[0117] In one embodiment, the regulating valve further includes a second limit assembly, and the regulating module further includes:

[0118] The third control unit is used to control the intermittent gear to rotate when the temperature of the boost pump is lower than a first temperature threshold value, until the intermittent gear is engaged with the second limit assembly to open the regulating valve; wherein the first temperature is higher than the first temperature threshold value.

[0119] As for the system embodiment, since it basically corresponds to the method embodiment, the relevant parts can refer to the partial description of the method embodiment. The system embodiment described above is only schematic, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of the present invention. Ordinary technicians in this field can understand and implement it without paying creative work.

[0120] The embodiment of the present invention also provides an electronic device such as Fig.11 As shown, it 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 computer program, the method for cooling the booster pump described in any of the above embodiments is implemented. Fig.11 The electronic device 110 shown is only an example and should not limit the functions and scope of use of the embodiments of the present invention. Fig.11 As shown, the electronic device 110 may be in the form of a general-purpose computing device, for example, it may be a server device. The components of the electronic device 110 may include, but are not limited to: the at least one processor 111, the at least one memory 112, and a bus 113 connecting different system components (including the memory 112 and the processor 111).

[0121] The bus 113 includes a data bus, an address bus, and a control bus.

[0122] The memory 112 may include a volatile memory, such as a random access memory (RAM) 1121 and / or a cache memory 1122 , and may further include a read-only memory (ROM) 1123 .

[0123] Memory 112 may also include a program tool 1125 (or utility) having a set (at least one) of program modules 1124, such program modules 1124 including but not limited to: an operating system, one or more application programs, other program modules, and program data, each of which or some combination may include an implementation of a network environment.

[0124] The processor 111 executes various functional applications and data processing by running the computer program stored in the memory 112, such as the method for cooling the booster pump described in any of the above embodiments.

[0125] The electronic device 110 may also communicate with one or more external devices 114. Such communication may be performed via an input / output (I / O) interface 115. Furthermore, the model generating electronic device 110 may also communicate with one or more networks (e.g., a local area network (LAN), a wide area network (WAN), and / or a public network, such as the Internet) via a network adapter 116. Fig.11 As shown, the network adapter 116 communicates with other modules of the electronic device 110 via the bus 113. It should be understood that, although not shown in the figure, other hardware and / or software modules can be used in conjunction with the electronic device 110, 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, etc.

[0126] An embodiment of the present invention further provides a computer storage medium on which a computer program is stored. When the computer program is executed by a processor, the method for cooling the booster pump provided in any of the above embodiments is implemented.

[0127] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A method for cooling a booster pump, characterized in that: Applied to a water purifier, the water purifier includes an ejector; the method includes: Determining a water inlet strategy for the ejector; the water inlet strategy is determined according to the temperature of the booster pump; The water inlet amount of the ejector is adjusted according to the water inlet strategy to cool the booster pump.

2. The method according to claim 1, characterized in that Determining the water inlet strategy of the ejector comprises: When the temperature of the booster pump reaches a first temperature, the water intake of the ejector is controlled to be a first threshold; wherein the first threshold is determined according to the structure of the ejector.

3. The method according to claim 1, characterized in that The ejector includes a water inlet, and the water purifier also includes a filter element, a wastewater outlet of the filter element is connected to the water inlet of the ejector, and the filter element provides water to the water inlet through the wastewater outlet.

4. The method according to claim 3, characterized in that The water purifier further includes a regulating valve, the wastewater outlet of the filter element is connected to the water inlet through a pipeline; the regulating valve is arranged on the pipeline; the regulating valve includes an intermittent gear; the water inlet amount of the ejector is adjusted according to the water inlet strategy, including: determining a rotation angle of the intermittent gear according to the water inlet strategy; The rotation angle of the intermittent gear is adjusted to adjust the water inflow of the ejector.

5. The method according to claim 4, characterized in that The regulating valve further includes a first limiter assembly, and the water inflow of the ejector is adjusted according to the water inflow strategy, and further includes: When the water purifier is not started, the intermittent gear is controlled to rotate until the intermittent gear is engaged with the first limit assembly, so that the regulating valve is in a closed state.

6. The method according to claim 4, characterized in that Determining the rotation angle of the intermittent gear according to the water inlet strategy includes: determining a current flow rate of water in the ejector according to the water inlet strategy; According to the correspondence between the flow rate and the rotation angle, the target rotation angle of the intermittent gear corresponding to the current flow rate is determined.

7. The method according to claim 5, characterized in that The regulating valve further includes a second limiter assembly, and the water inflow of the ejector is adjusted according to the water inflow strategy, and further includes: When the temperature of the boost pump is lower than a first temperature threshold, the intermittent gear is controlled to rotate until the intermittent gear is engaged with the second limit assembly to open the regulating valve; wherein the first temperature is higher than the first temperature threshold.

8. A cooling system for a booster pump, characterized in that: Applied to a water purifier, the water purifier includes an ejector, and the system includes: A determination module, used to determine a water inlet strategy for the ejector; the water inlet strategy is determined according to the temperature of the booster pump; The regulating module is used to regulate the water intake of the ejector according to the water intake strategy so as to cool the booster pump.

9. An electronic device comprising a memory, a processor, and a computer program stored in the memory and used to run on the processor, characterized in that: When the processor executes the computer program, the method for cooling the booster pump according to any one of claims 1 to 7 is implemented.

10. A computer storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method for cooling a booster pump according to any one of claims 1 to 7 is implemented.

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