Water pan system of double water pumps and control method of water pan system

Abstract

The invention discloses a water pan system with double water pumps and a control method of the water pan system, and relates to the technical field of heat exchange equipment. The water pan system of the double water pumps comprises a first water pan, a first drainage pump, a second drainage pump, a water level detection assembly and a control assembly. Wherein the first water pan is used for receiving and storing condensate water; an inlet of the first draining pump is communicated with the first water receiving disc so as to suck condensed water in the first water receiving disc; an inlet of the second draining pump is communicated with the first water receiving disc so as to suck condensate water in the first water receiving disc, and the second draining pump and the first draining pump are arranged in parallel; the water level detection assembly is used for detecting the water level of condensate water in the first water pan; the control assembly is in signal connection with the first drainage pump, the second drainage pump and the water level detection assembly so as to control starting and stopping of the first drainage pump or starting and stopping of the second drainage pump according to the detection result of the water level detection assembly, the water pan system can effectively guarantee continuous normal drainage, and the situation of water overflowing is reduced and avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange equipment, and more specifically, to a water receiving tray system for a double water pump. In addition, the present invention also relates to a control method for the water receiving tray system for the double water pump. Background Art

[0002] Air conditioners are usually equipped with a drain pan. The main function of the drain pan is to collect and discharge condensed water generated during the operation of the air conditioner, prevent the condensed water from dripping onto the ground or walls, etc., protect the home environment and air conditioning equipment, reduce the risk of slippery and damaged floors, and extend the service life of the air conditioner.

[0003] In the process of implementing the present invention, the inventors found that the prior art has at least the following problems:

[0004] At present, the air conditioning water collection pan system generally uses gravity to automatically drain water. A small number of air conditioning water collection pan systems are equipped with drainage pumps for suction and drainage. However, it is inevitable that the drainage pump may fail. Since the server cannot stop working immediately, the air conditioner needs to continue to work to cool down. Condensed water will continue to be generated and flow into the water collection pan. If the water pump fails, overflow problems will often occur, which may cause water accumulation on the ground and even leak into the power supply and distribution equipment, causing great safety hazards. It will also cause the air humidity in the computer room to increase, network equipment to operate abnormally, and the information system in the computer room to operate unstablely, which will have an adverse impact on business operations. Summary of the invention

[0005] In view of this, an object of the present invention is to provide a water receiving tray system with dual water pumps to solve the problem in the prior art that normal drainage cannot be guaranteed when a water pump fails.

[0006] Another object of the present invention is to provide a control method for the water receiving tray system of the dual water pumps.

[0007] In order to achieve the above object, the present invention provides the following technical solutions:

[0008] A water receiving tray system with two water pumps, comprising:

[0009] A first water receiving tray, used for receiving and storing condensed water;

[0010] a first drainage pump, the inlet of which is connected to the first water receiving pan, so as to suck condensed water in the first water receiving pan;

[0011] a second drainage pump, the inlet of which is connected to the first water receiving pan to suck condensed water in the first water receiving pan, and the second drainage pump is arranged in parallel with the first drainage pump;

[0012] A water level detection component, used for detecting the water level of condensed water in the first water receiving tray;

[0013] A control component is signal-connected to the first drainage pump, the second drainage pump and the water level detection component to control the start and stop of the first drainage pump or the start and stop of the second drainage pump according to the detection result of the water level detection component.

[0014] Preferably, the water level detection assembly comprises a high water level detector and a low water level detector which are arranged on the first water receiving tray, and the position height of the high water level detector is higher than the position height of the low water level detector.

[0015] Preferably, the control assembly includes an electromagnetic switch A, an electromagnetic switch B and an electromagnetic switch C, and the high water level detector and the low water level detector are both liquid level switches;

[0016] The control terminal A1 of the electromagnetic switch A is connected in parallel with the control terminal B1 of the electromagnetic switch B and is electrically connected to the low water level detector to form a first loop;

[0017] The control end C1 of the electromagnetic switch C is connected in series to the high water level detector to form a second loop, and the first loop and the second loop are arranged in parallel;

[0018] An action end B2 of the electromagnetic switch B and an action end C2 of the electromagnetic switch C are arranged in parallel and electrically connected to the branch circuit where the control end B1 of the electromagnetic switch B is located;

[0019] An action end A2 of the electromagnetic switch A is electrically connected to the first drainage pump, and another action end B3 of the electromagnetic switch B is electrically connected to the second drainage pump.

[0020] Preferably, the control component also includes a controller, and the other action end C3 of the electromagnetic switch C is electrically connected to the controller, and the controller has a timer, an alarm and a processor, and the timer and the alarm are both connected to the processor signal to control the alarm to issue a fault alarm for the first drainage pump and a fault alarm for the second drainage pump based on the electrical signal received from one side of the electromagnetic switch C and the timing signal of the timer.

[0021] Preferably, the first branch pipeline where the first drain pump is located is provided with a first one-way valve, and the second branch pipeline where the second drain pump is located is provided with a second one-way valve, the first branch pipeline and the second branch pipeline are arranged in parallel, and one end of the first branch pipeline and the second branch pipeline are connected to the water receiving pan, and the other end is used to connect to the main drain pipe of the air conditioner.

[0022] Preferably, the inlet ends of the first branch pipeline and the second branch pipeline are both inserted into the bottom wall of the first water receiving tray, and the water inlets of the inlet ends are higher than the bottom of the first water receiving tray.

[0023] Preferably, the device further comprises a second water receiving tray, wherein the second water receiving tray is located at the bottom of the first water receiving tray to receive condensed water overflowing from the first water receiving tray.

[0024] A control method for a dual water pump receiving tray system, applicable to any of the dual water pump receiving tray systems described above, comprising:

[0025] Obtaining the liquid level position of condensed water in the first water receiving tray;

[0026] Determine whether the liquid level of the condensed water rises to be equal to or higher than a preset low water level, and if so, control the first drainage pump to start;

[0027] Determine whether the liquid level of the condensed water rises to be equal to or higher than a preset high water level, and if so, control the second drainage pump to start.

[0028] Preferably, after controlling the first drainage pump to start, the method further includes:

[0029] The liquid level of the condensed water in the first water receiving tray is obtained again to determine whether the current liquid level of the condensed water is lower than the preset low water level, and if so, the first water receiving pump is controlled to stop;

[0030] After the controlling the second drainage pump to start, the method further includes:

[0031] The liquid level position of the condensed water in the first water receiving tray is obtained again to determine whether the current condensed water level is lower than the preset low water level. If so, the second water receiving pump is controlled to stop.

[0032] Preferably, while controlling the start-up of the second drainage pump, the method further includes: outputting a status reminder of the first drainage pump;

[0033] After the second drain pump is started, the method further includes: after the second drain pump is controlled to work for a first preset time, the liquid level position of the condensed water in the first water receiving tray is obtained again, and a status reminder of the second drain pump is output;

[0034] And / or, the determining whether the liquid level of the condensed water rises to be equal to or higher than the preset high water level, and if so, controlling the second drain pump to start, includes: determining whether the liquid level of the condensed water rises to be equal to or higher than the preset high water level, and if so, delaying for a second preset time to obtain the liquid level position of the condensed water in the first water receiving tray again, and determining again whether the liquid level of the condensed water is equal to or higher than the preset high water level, and if so, controlling the second drain pump to start.

[0035] The dual water pump water receiving pan system provided by the present invention is provided with a first water receiving pan to receive condensed water generated during the operation of the air conditioner. The water receiving pan is an existing mature technology and will not be described in detail here. In conjunction with it, two drainage pumps are equipped, namely a first drainage pump and a second drainage pump, and the first drainage pump and the second drainage pump are both connected to the inner cavity of the first water receiving pan so as to be able to extract the liquid in the first water receiving pan.

[0036] Furthermore, a water level detection component is provided to detect the water level of the liquid in the first water receiving tray in real time, and a signal control component is provided to connect the water level detection component, the first drain pump and the second drain pump to receive the water level signal generated during the detection process of the water level detection component, and control the start and stop of the first drain pump according to the water level signal or switch to control the start and stop of the second drain pump.

[0037] When in use, the position of the liquid level in the first water receiving tray is detected in real time. After the preset water level is detected, the first drain pump is controlled to start. After starting, the preset water level is continuously monitored and the second drain pump is controlled to start. Therefore, when the first drain pump fails, the condensed water in the first water receiving tray can be sucked out by the second drain pump, so as to effectively ensure continuous normal drainage and reduce the occurrence of overflow. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0039] Figure 1 A schematic diagram of the structure of a specific embodiment provided by the present invention;

[0040] Figure 2 This is a schematic diagram of electrical control of a specific embodiment provided by the present invention.

[0041] Reference numerals:

[0042] 1-first water receiving tray; 2-first drainage pump; 3-second drainage pump; 4-water level detection component; 41-high water level detector; 42-low water level detector; 5-control component; 51-electromagnetic switch A; 52-electromagnetic switch B; 53-electromagnetic switch C; 54-controller; 6-first one-way valve; 7-second one-way valve. DETAILED DESCRIPTION

[0043] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0044] The core of the present invention is to provide a water tray system with dual water pumps, which can effectively ensure smooth discharge of condensed water. Another core of the present invention is to provide a control method suitable for the water tray system with dual water pumps.

[0045] Please refer to Figure 1 The present invention provides a dual water pump water receiving tray system, including a first water receiving tray 1, a first drainage pump 2, a second drainage pump 3, a water level detection component 4 and a control component 5.

[0046] Among them, the first water receiving pan 1 is used to receive and store condensed water; the inlet of the first drain pump 2 is connected to the first water receiving pan 1 to suck the condensed water in the first water receiving pan 1; the inlet of the second drain pump 3 is connected to the first water receiving pan 1 to suck the condensed water in the first water receiving pan 1, and the second drain pump 3 and the first drain pump 2 are arranged in parallel; the water level detection component 4 is used to detect the water level of the condensed water in the first water receiving pan 1; the control component 5 is signal-connected to the first drain pump 2, the second drain pump 3 and the water level detection component 4 to control the start and stop of the first drain pump 2 or the start and stop of the second drain pump 3 according to the detection result of the water level detection component 4.

[0047] like Figure 1 As shown, a first water receiving pan 1 is provided to receive condensed water generated during the operation of the air conditioner. The water receiving pan is an existing mature technology and will not be described in detail here. In conjunction with it, two drainage pumps are provided, namely a first drainage pump 2 and a second drainage pump 3. Both the first drainage pump 2 and the second drainage pump 3 are connected to the inner cavity of the first water receiving pan 1 so as to be able to extract the liquid in the first water receiving pan 1.

[0048] Furthermore, a water level detection component 4 is provided to detect the water level of the liquid in the first water receiving tray 1 in real time, and a control component 5 is provided to connect the water level detection component 4, the first drain pump 2 and the second drain pump 3 with a signal to receive the water level signal generated during the detection process of the water level detection component 4, and control the start and stop of the first drain pump 2 according to the water level signal or switch to control the start and stop of the second drain pump 3.

[0049] It should be noted that the type of the water level detection component 4 is not limited as long as it can meet the water level detection requirements, such as a water level sensor.

[0050] When in use, the position of the liquid level in the first water receiving tray 1 is detected in real time. After the preset water level is detected, the first drainage pump 2 is controlled to start, and after starting, after the preset water level is continuously monitored, the second drainage pump 3 is controlled to start. Therefore, when the first drainage pump 2 fails, the condensed water in the first water receiving tray 1 can be sucked out by the second drainage pump 3, so as to effectively ensure continuous normal drainage and reduce the occurrence of overflow.

[0051] On the basis of the above embodiment, the water level detection assembly 4 includes a high water level detector 41 and a low water level detector 42 provided on the first water receiving tray 1 , and the position height of the high water level detector 41 is higher than the position height of the low water level detector 42 .

[0052] like Figure 1 As shown, in the water level detection component 4, the high water level detector 41 is used to detect after the liquid level of the condensed water in the first water receiving tray 1 rises to a preset high water level, and output a high water level signal, and the low water level detector 42 is used to detect after the liquid level of the condensed water in the first water receiving tray 1 rises to a preset low water level, and output a low water level signal, so as to control the start or stop of the first drain pump 2 through the low water level signal detected by the low water level detector 42, and control the start of the second drain pump 3 based on the high water level signal detected by the high water level detector 41, and control the stop of the second drain pump 3 through the low water level signal detected by the low water level detector 42 during the operation of the second drain pump 3.

[0053] On the basis of the above embodiment, the control component 5 includes an electromagnetic switch A51, an electromagnetic switch B52 and an electromagnetic switch C53, and the high water level detector 41 and the low water level detector 42 are both liquid level switches; the control end A1 of the electromagnetic switch A51 is arranged in parallel with the control end B1 of the electromagnetic switch B52, and is electrically connected to the low water level detector 42 to form a first circuit; the control end C1 of the electromagnetic switch C53 is connected in series to the high water level detector 41 to form a second circuit, and the first circuit and the second circuit are arranged in parallel; an action end B2 of the electromagnetic switch B52 and an action end C2 of the electromagnetic switch C53 are arranged in parallel, and are electrically connected to the branch circuit where the control end B1 of the electromagnetic switch B52 is located; an action end A2 of the electromagnetic switch A51 is electrically connected to the first drainage pump 2, and the other action end B3 of the electromagnetic switch B52 is electrically connected to the second drainage pump 3.

[0054] In this embodiment, both the high water level detector 41 and the low water level detector 42 are liquid level switches, which can be closed to connect the circuits to which they are connected after the liquid level of the condensed water in the first water receiving tray 1 reaches a preset water level.

[0055] Furthermore, in the control component 5, as Figure 2As shown, the control end A1 of the electromagnetic switch A51 is connected in parallel with the control end B1 of the electromagnetic switch B52, and the branch circuit where the control end B1 of the electromagnetic switch B52 is located is provided with the action end B2 of the electromagnetic switch B52 and the action end C2 of the electromagnetic switch C53 in parallel, then the low water level detector 42, the control end A1 of the electromagnetic switch A51, the control end B1 and the action end B2 of the electromagnetic switch B52, and the action end C2 of the electromagnetic switch C53 form the above-mentioned first circuit; the control end C1 of the electromagnetic switch C53 is connected in series with the high water level detector 41 to form the above-mentioned second circuit, and the second circuit is connected in parallel with the first circuit.

[0056] Correspondingly, the action end A2 of the electromagnetic switch A51 is independent of the above-mentioned first circuit and the second circuit, and is electrically connected to the first drainage pump 2 through a line. The action end B3 of the electromagnetic switch B52 is independent of the above-mentioned first circuit and the second circuit, and is electrically connected to the second drainage pump 3 through a line.

[0057] When in use, the low water level detector 42 will be closed after detecting that the liquid level of the condensed water in the first water receiving pan 1 is equal to or higher than the preset low water level, so that the control end A1 of the electromagnetic switch A51 is energized, thereby controlling its action end A2 to be closed, thereby starting the first drain pump 2, and the high water level detector 41 will be closed after detecting that the liquid level of the condensed water in the first water receiving pan 1 is equal to or higher than the preset high water level, so that the control end C1 of the electromagnetic switch C53 is energized, thereby controlling its action end C2 to be closed, thereby energizing the control end B2 of the electromagnetic switch B52, and controlling the action end B2 and the action end B3 of the electromagnetic switch B52 to be closed, thereby starting the second drain pump 3, and under the operation of the second drain pump 3, the condensed water in the first water receiving pan 1 is discharged, so that the liquid level of the condensed water in the first water receiving pan 1 is lower than the preset high water level, thereby the high water level detector 41 is closed. The low water level detector 41 will be disconnected, so that the control end C1 of the electromagnetic switch C53 is powered off to control its action end C2 to be powered off. Since the low water level detector 42 is still in the closed state, the control end B1, the action end B2 and the low water level detector 42 of the electromagnetic switch B52 form a power-on circuit. Then, under the control of the action end B3 of the electromagnetic switch B52, the second drain pump 3 will continue to operate until the liquid level of the condensed water in the first water receiving tray 1 is lower than the preset low water level. Then the low water level detector 42 is disconnected, so that the control end of the electromagnetic switch B52 is powered off to control its action end B3 to be powered off, and the second drain pump 3 is controlled to stop running. Then, during the continuous operation of the air conditioner, the low water level detector 42 will be closed again after detecting that the liquid level of the condensed water in the first water receiving tray 1 is equal to or higher than the preset high water level, thereby controlling the second drain pump 3 to start again.

[0058] Furthermore, a maintenance switch is provided between the action end A2 of the electromagnetic switch A51 and the branch circuit where the first drainage pump 2 is located. When in use, after a fault alarm is given by the first drainage pump 2 and before manual maintenance, the maintenance switch can be opened to cut off the power to the first drainage pump 2. After the manual maintenance is completed, the maintenance switch can be closed so that the first drainage pump 2 can continue to control its operation or stop based on the detection result of the water level detection component 4.

[0059] On the basis of the above embodiment, the control component 5 also includes a controller 54, and the other action end C3 of the electromagnetic switch C53 is electrically connected to the controller 54, and the controller 54 has a timer, an alarm and a processor. The timer and the alarm are both connected to the processor signal to control the alarm to issue a fault alarm for the first drainage pump 2 and a fault alarm for the second drainage pump 3 according to the electrical signal received from one side of the electromagnetic switch C53 and the timing signal of the timer.

[0060] like Figure 2 As shown, a controller 54 is configured, and the action end C3 of the electromagnetic switch C53 is independent of the above-mentioned first circuit and the second circuit, and the controller 54 is electrically connected to the action end C3 of the electromagnetic switch C53, so that the controller 54 can receive the electrical signal transmitted by the electromagnetic switch C53; furthermore, in the controller 54, the timer starts timing after obtaining the electrical signal, and controls the alarm through the processor to sound an alarm. In this way, the change of the liquid level within the first preset time is used to control whether to issue a fault alarm for the first drainage pump 2 and the second drainage pump 3, which is beneficial to avoid the occurrence of overflow caused by the failure of the first drainage pump 2 and the second drainage pump 3 without feedback signal, and can also avoid the occurrence of false alarms caused by the pumping capacity of the drainage pump and the height difference between the high and low water level switches.

[0061] It should be noted that the type of alarm is not limited as long as it can achieve the above functions, such as a warning light or a buzzer.

[0062] Based on the above embodiment, a first one-way valve 6 is provided in the first branch pipeline where the first drainage pump 2 is located, and a second one-way valve 7 is provided in the second branch pipeline where the second drainage pump 3 is located. The first branch pipeline and the second branch pipeline are arranged in parallel, and one end of the first branch pipeline and the second branch pipeline are connected to the water receiving pan, and the other end is used to connect to the main drainage pipe of the air conditioner.

[0063] like Figure 1As shown, a first one-way valve 6 is provided in the first branch pipeline where the first drain pump 2 is located, so that the first drain pump 2 can pump out the condensed water in the first water receiving pan 1 and discharge it to the main drain pipe of the air conditioner; similarly, a second one-way valve 7 is provided in the second branch pipeline where the second drain pump 3 is located, so that the second drain pump 3 can pump out the condensed water in the first water receiving pan 1 and discharge it to the main drain pipe of the air conditioner. Since there is usually only one main drain pipe in the air conditioner, it is necessary for the outlet of the first drain pump 2 and the outlet of the second drain pump 3 to be connected to the main drain pipe so that they can be discharged to the outside. Compared with providing a one-way valve on the main drain pipe of the air conditioner, such a configuration can prevent the condensed water in the main drain pipe from flowing back to the first water receiving pan 1, and can also prevent the condensed water in the first branch pipeline and the condensed water in the second branch pipeline from flowing into each other, thereby effectively avoiding the frequent operation of the first drain pump 2 and the second drain pump 3.

[0064] Preferably, the first one-way valve 6 is located at the outlet side of the first drainage pump 2 , and the second one-way valve 7 is located at the outlet side of the second drainage pump 3 , so as to effectively prevent the first drainage pump 2 and the second drainage pump 3 from reversing.

[0065] On the basis of the above embodiment, the inlet ends of the first branch pipeline and the second branch pipeline are both inserted into the bottom wall of the first water receiving tray 1 , and the water inlets of the inlet ends are higher than the bottom of the first water receiving tray 1 .

[0066] refer to Figure 1 The orientation shown, such as Figure 1 As shown, the left inlet end of the first branch pipeline is plugged into the first water receiving pan 1, and is connected to the inner cavity of the water receiving pan 1 through the water inlet, so that the condensed water in the first water receiving pan 1 can be pumped out by the first drainage pump 2; similarly, Figure 1 As shown, the left inlet end of the second branch pipeline is plugged into the first water receiving tray 1 and is connected to the inner cavity of the water receiving tray 1 through the water inlet, so that the condensed water in the first water receiving tray 1 can be pumped out by the second drainage pump 3.

[0067] The left inlet end of the first branch pipeline extends into the interior of the first water receiving tray 1, and the water inlet opened above the left inlet end of the first branch pipeline is higher than the bottom of the first water receiving tray 1; similarly, the left inlet end of the second branch pipeline extends into the interior of the first water receiving tray 1, and the water inlet opened above the left inlet end of the second branch pipeline is higher than the bottom of the first water receiving tray 1, so as to reduce the occurrence of precipitated impurities entering the first branch pipeline and the second branch pipeline, thereby reducing the possibility of blockage of the water receiving tray system.

[0068] On the basis of the above embodiment, a second water receiving tray is further included. The second water receiving tray is located at the bottom of the first water receiving tray 1 to receive condensed water overflowing from the first water receiving tray 1 .

[0069] In this embodiment, a double water receiving tray is arranged in the water receiving tray system, wherein the first water receiving tray 1 is located above the second water receiving tray, and the top of the second water receiving tray is open, so as to receive condensed water overflowing from the first water receiving tray 1 located above in an emergency situation when both the first drain pump 2 and the second drain pump 3 fail, thereby further preventing the condensed water from overflowing onto the floor.

[0070] In addition to the above dual water pump water receiving tray system, the present invention also provides a control method for the dual water pump water receiving tray system disclosed in the above embodiment, the control method comprising the following steps:

[0071] Obtaining the liquid level position of condensed water in the first water receiving tray 1;

[0072] Determine whether the liquid level of the condensed water rises to be equal to or higher than the preset low water level, and if so, control the first drainage pump 2 to start;

[0073] It is determined whether the liquid level of the condensed water rises to be equal to or higher than the preset high water level. If yes, the second drainage pump 3 is controlled to start.

[0074] During use, the liquid level position of the condensed water in the first water receiving tray 1 is detected in real time through the water level detection component 4. The condensed water in the first water receiving tray 1 continues to accumulate. When the liquid level of the condensed water rises to be equal to or higher than the preset low water level, the first drain pump 2 is controlled to start to pump out the condensed water in the first water receiving tray 1; or, when the liquid level of the condensed water rises to be equal to or higher than the preset high water level, the second drain pump 3 is controlled to start to pump out the condensed water in the drain tray. Such a configuration effectively improves the drainage performance, and when the first drain pump 2 fails and cannot pump water, the spare second drain pump 3 can be started when the condensed water rises to be equal to or higher than the preset high water level to effectively prevent the condensed water from overflowing.

[0075] On the basis of the above embodiment, after controlling the first drainage pump 2 to start, it also includes: obtaining the liquid level position of the condensed water in the first water receiving tray 1 again, judging whether the current condensed water level is lower than the preset low water level, and if so, controlling the first water receiving pump 2 to stop.

[0076] During use, while the first drain pump 2 is working, the liquid level position of the condensed water in the first water receiving tray 1 continues to be detected until the liquid level of the condensed water in the first water receiving tray 1 is lower than the preset low water level, and the first drain pump 2 can be controlled to stop working. After the first drain pump 2 stops working, the condensed water in the first water receiving tray 1 continues to accumulate, and the liquid level position of the condensed water in the first water receiving tray 1 is obtained again to determine whether the current condensed water level has risen to or above the preset low water level. If so, the first drain pump 2 can be controlled to start again to pump the condensed water in the first water receiving tray 1 again.

[0077] On the basis of the above embodiment, after controlling the second drainage pump 3 to start, it also includes: obtaining the liquid level position of the condensed water in the first water receiving tray 1 again, judging whether the current condensed water level is lower than the preset low water level, and if so, controlling the second water receiving pump 3 to stop.

[0078] Similarly, during use, while the second drain pump 3 is working, the liquid level position of the condensed water in the first water receiving tray 1 continues to be detected until the liquid level of the condensed water in the first water receiving tray 1 is lower than the preset low water level, and the second drain pump 3 can be controlled to stop working. After the second drain pump 3 stops working, the condensed water in the first water receiving tray 1 continues to accumulate, and the liquid level position of the condensed water in the first water receiving tray 1 is obtained again to determine whether the current condensed water level has risen to or above the preset high water level. If so, the second drain pump 3 can be controlled to start again to pump the condensed water in the first water receiving tray 1 again.

[0079] On the basis of the above embodiment, while controlling the start-up of the second drain pump 3, it also includes: outputting a status reminder of the first drain pump 2; it can be understood that after a failure of the first drain pump 2, a status reminder of the first drain pump 2 can be given, such as a buzzer or a light, etc., to remind personnel to inspect the first drain pump 2.

[0080] Furthermore, after controlling the second drain pump 3 to start, it also includes: after controlling the second drain pump 3 to work for the first preset time, obtaining the liquid level position of the condensed water in the first water receiving tray 1 again, and outputting a status reminder of the second drain pump 3; it can be understood that after the second drain pump 3 starts to work for the first preset time, the working status of the second drain pump 3 is fed back according to the liquid level result detected again. If a sufficient volume of condensed water in the first water receiving tray 1 cannot be pumped out so that the liquid level of the condensed water is still equal to or higher than the preset high water level, the second drain pump 3 fails and a fault alarm signal of the second drain pump 3 is issued, such as a buzzer or a light, to remind personnel to inspect the second drain pump 3. On the contrary, if a sufficient volume of condensed water in the second water receiving tray can be pumped out so that the liquid level of the condensed water drops below the preset high water level, the second drain pump 3 operates normally and a normal working signal of the second drain pump 3 is issued, for example, the pre-output fault alarm signal of the second drain pump 3 is eliminated.

[0081] On the basis of the above embodiment, it is determined whether the liquid level of the condensed water rises to be equal to or higher than the preset high water level. If so, the second drainage pump 3 is controlled to start, including: determining whether the liquid level of the condensed water rises to be equal to or higher than the preset high water level. If so, delaying the second preset time to obtain the liquid level position of the condensed water in the first water receiving tray 1 again, and determining again whether the liquid level of the condensed water is equal to or higher than the preset high water level. If so, the second drainage pump 3 is controlled to start.

[0082] During use, during the operation of the first drain pump 2, it is detected that the liquid level of the condensed water in the first water receiving pan 1 is higher than the preset high water level as expected, and the time is delayed for a second preset time. Then, based on the position of the liquid level in the first water receiving pan 1 detected again after the second preset time, it is controlled whether to start the second drain pump 3 and whether to issue a fault alarm for the first drain pump 2. This reduces the possibility of misjudgment of the first drain pump 2 due to factors such as the pumping capacity of the water pump and the height difference between the high and low water level switches, and avoids the occurrence of false alarms or failure to alarm, thereby effectively improving the accuracy of the alarm.

[0083] On the basis of the above embodiment, the fault alarm time of the first drainage pump 2 and the fault alarm duration of the second drainage pump 3 are different, so as to help the staff to distinguish which drainage pump has failed.

[0084] It should be noted that the relational terms such as "first" and "second" mentioned above are merely used to distinguish one entity from other entities, and do not necessarily require or imply any actual relationship or order between these entities; the "upper surface, lower surface, top, bottom" and the directional words "upper, lower, left, right" mentioned above are all defined based on the drawings in the specification.

[0085] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0086] The above is a detailed introduction to the dual water pump water receiving tray system and control method thereof provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the present invention.

Claims

1. A double water pump water tray system, characterized in that: include: A first water receiving tray (1), used for receiving and storing condensed water; A first drainage pump (2), the inlet of which is connected to the first water receiving pan (1) so as to suck condensed water in the first water receiving pan (1); a second drainage pump (3), the inlet of which is connected to the first water receiving pan (1) so as to suck condensed water in the first water receiving pan (1), and the second drainage pump (3) and the first drainage pump (2) are arranged in parallel; A water level detection component (4) used to detect the water level of condensed water in the first water receiving tray (1); A control component (5) is signal-connected to the first drainage pump (2), the second drainage pump (3) and the water level detection component (4) so ​​as to control the start and stop of the first drainage pump (2) or the start and stop of the second drainage pump (3) according to the detection result of the water level detection component (4).

2. The double water pump water tray system according to claim 1, characterized in that: The water level detection assembly (4) comprises a high water level detector (41) and a low water level detector (42) arranged on the first water receiving tray (1), wherein the position height of the high water level detector (41) is higher than the position height of the low water level detector (42).

3. The double water pump water tray system according to claim 2, characterized in that: The control component (5) comprises an electromagnetic switch A (51), an electromagnetic switch B (52) and an electromagnetic switch C (53), and the high water level detector (41) and the low water level detector (42) are both liquid level switches; The control terminal A1 of the electromagnetic switch A (51) and the control terminal B1 of the electromagnetic switch B (52) are arranged in parallel and are electrically connected to the low water level detector (42) to form a first loop; The control terminal C1 of the electromagnetic switch C (53) is connected in series to the high water level detector (41) to form a second circuit, and the first circuit and the second circuit are arranged in parallel; An action end B2 of the electromagnetic switch B (52) and an action end C2 of the electromagnetic switch C (53) are arranged in parallel and electrically connected to a branch circuit where a control end B1 of the electromagnetic switch B (52) is located; An action end A2 of the electromagnetic switch A (51) is electrically connected to the first drainage pump (2), and another action end B3 of the electromagnetic switch B (52) is electrically connected to the second drainage pump (3).

4. The double water pump water tray system according to claim 3, characterized in that: The control component (5) further comprises a controller (54), the other action end C3 of the electromagnetic switch C (53) being electrically connected to the controller (54), and the controller (54) comprising a timer, an alarm and a processor, wherein the timer and the alarm are both connected to the processor signal so as to control the alarm to issue a fault alarm for the first drainage pump (2) and a fault alarm for the second drainage pump (3) according to the electrical signal received from one side of the electromagnetic switch C (53) and the timing signal of the timer.

5. The double water pump water tray system according to claim 1, characterized in that: The first branch pipeline where the first drainage pump (2) is located is provided with a first non-return valve (6), and the second branch pipeline where the second drainage pump (3) is located is provided with a second non-return valve (7). The first branch pipeline and the second branch pipeline are arranged in parallel, and one end of the first branch pipeline and the second branch pipeline are both connected to the water receiving pan, and the other end is used to be connected to the main drainage pipe of the air conditioner.

6. The double water pump water tray system according to claim 5, characterized in that: The inlet ends of the first branch pipeline and the second branch pipeline are both inserted into the bottom wall of the first water receiving tray (1), and the water inlets of the inlet ends are higher than the bottom of the first water receiving tray (1).

7. The water tray system of dual water pumps according to claim 1, characterized in that: It also comprises a second water receiving tray, which is located at the bottom of the first water receiving tray (1) to receive condensed water overflowing from the first water receiving tray (1).

8. A control method for a dual water pump receiving tray system, applicable to the dual water pump receiving tray system according to any one of claims 1 to 7, characterized in that: include: Obtaining the liquid level position of condensed water in the first water receiving tray (1); determining whether the liquid level of the condensed water rises to be equal to or higher than a preset low water level, and if so, controlling the first drainage pump (2) to start; It is determined whether the liquid level of the condensed water rises to a level equal to or higher than a preset high water level; if so, the second drainage pump (3) is controlled to start.

9. The control method of the dual water pump receiving system according to claim 8, characterized in that: After the controlling the first drainage pump (2) to start, the method further comprises: The liquid level position of the condensed water in the first water receiving tray (1) is obtained again to determine whether the current liquid level of the condensed water is lower than a preset low water level, and if so, the first water receiving pump (2) is controlled to stop; After the second drainage pump (3) is controlled to start, the method further comprises: The liquid level position of the condensed water in the first water receiving tray (1) is obtained again to determine whether the current liquid level of the condensed water is lower than a preset low water level; if so, the second water receiving pump (3) is controlled to stop.

10. The control method of the dual water pump receiving tray system according to claim 9, characterized in that: While controlling the start-up of the second drainage pump (3), the method also includes: outputting a status reminder of the first drainage pump (2); After the second drain pump (3) is controlled to start, the method further comprises: after the second drain pump (3) is controlled to work for a first preset time, the liquid level position of the condensed water in the first water receiving tray (1) is obtained again, and a status reminder of the second drain pump (3) is output; And / or, the determining whether the liquid level of the condensed water rises to a level equal to or higher than a preset high water level, and if so, controlling the second drainage pump (3) to start, comprises: determining whether the liquid level of the condensed water rises to a level equal to or higher than a preset high water level, and if so, delaying a second preset time to obtain the liquid level position of the condensed water in the first water receiving tray (1) again, determining again whether the liquid level of the condensed water is equal to or higher than the preset high water level, and if so, controlling the second drainage pump (3) to start.

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