Air conditioner waterway system, control method thereof and water-cooling air conditioner

Abstract

The invention relates to an air conditioner waterway system, a control method thereof and a water-cooling air conditioner. The air conditioner waterway system comprises a water-cooling condenser; the first water storage tank is used for storing hot water required by a user; the first end of the first drainage pipeline is connected with a water outlet of the water cooling condenser, the second end of the first drainage pipeline is connected with a water inlet of the first water storage tank, and a first control valve is arranged on the first drainage pipeline; under the condition that the water-cooling air conditioner is in the refrigeration mode, if the water temperature of the water-cooling condenser is larger than the first temperature threshold value, the first control valve is controlled to be in the open state, so that hot water which exchanges heat with the water-cooling condenser and is heated is stored in the first water storage tank through the first water drainage pipeline, waste heat recycling of condensate water and drained water of the condenser can be achieved, and the energy consumption is reduced. And meanwhile, the application range of the water-cooling air conditioner is expanded, and heat exchange can be normally carried out in a dry area.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioners, and in particular to an air conditioning water system and a control method thereof, and a water-cooled air conditioner. Background Art

[0002] As the air conditioning market matures, the development of air conditioning shows a trend of high energy efficiency. Traditional air conditioning uses air-cooled heat exchangers on the outdoor side. This heat exchange method is not only noisier, but also has low heat exchange efficiency. Water-cooled heat exchangers are not only silent, but also have a much higher heat exchange coefficient than air, and have higher heat exchange efficiency.

[0003] In the related art, water-cooled air conditioners generally use tap water as cooling water to cool the water-cooled condenser, and the hot water generated after heat exchange with the water-cooled condenser is usually discharged outdoors or into a sewer pipe, which will cause a huge waste of energy. Summary of the invention

[0004] The present application provides an air conditioning water system and a control method thereof, and a water-cooled air conditioner, so as to solve the technical problem that hot water generated by a water-cooled condenser in an existing water-cooled air conditioner is directly discharged, resulting in energy waste.

[0005] In a first aspect, the present application provides an air conditioning water system, which is arranged on a water-cooled air conditioner, and the air conditioning water system comprises:

[0006] Water-cooled condenser;

[0007] The first water storage tank is used to store hot water required by users;

[0008] A first drainage pipeline, a first end of which is connected to the water outlet of the water-cooled condenser, a second end of which is connected to the water inlet of the first water storage tank, and a first control valve is provided on the first drainage pipeline;

[0009] A first temperature detection device, the first temperature detection device is configured to detect the water temperature of the water-cooled condenser;

[0010] The controller is electrically connected to the first temperature detection device, and the controller is electrically connected to the first control valve. The controller is configured to control the first control valve to be in an open state when the water-cooled air conditioner is in a cooling mode and the water temperature of the water-cooled condenser is greater than a first temperature threshold, so that the hot water heated by heat exchange with the water-cooled condenser is stored in the first water storage tank through the first drainage pipeline.

[0011] In a possible implementation, a first water level detection device is included, and the first water level detection device is configured to detect a first water level of a water-cooled condenser;

[0012] The controller is electrically connected to the first water level detection device, and is configured to control the air conditioning water system to enter a condensed water replenishment mode or an external water source replenishment mode if the first water level of the water-cooled condenser is less than a first water level threshold when the water-cooled air conditioner is in a cooling mode.

[0013] In a possible implementation, the air conditioning water system includes a second water storage tank and a second water level detection device, the second water storage tank is used to store condensed water caused by the evaporator, the water inlet of the water-cooled condenser is connected to the water outlet of the second water storage tank through the first water inlet pipeline, and the second water level detection device is configured to detect a second water level of the second water storage tank;

[0014] The controller is electrically connected to the second water level detection device, and the controller is configured to, when the water-cooled air conditioner is in cooling mode, if the first water level of the water-cooled condenser is less than the first water level threshold, and the second water level of the second water tank is greater than the second water level threshold, control the condensed water stored in the second water tank to enter the water-cooled condenser through the first water inlet pipe.

[0015] In a possible implementation, the water inlet of the water-cooled condenser is connected to an external water source through a second water inlet pipeline;

[0016] The controller is configured to control the external water source to enter the water-cooled condenser through the second water inlet pipe if the first water level of the water-cooled condenser is less than the first water level threshold and the second water level of the second water tank is less than or equal to the second water level threshold when the water-cooled air conditioner is in cooling mode.

[0017] In one possible implementation, a third control valve is provided between the first water inlet pipeline and the second water inlet pipeline, and the controller is electrically connected to the third control valve. The controller is configured to control the on-off state of the third control valve based on the second water level of the second water tank so that the air-conditioning water system enters the condensed water replenishment mode or the external water source replenishment mode.

[0018] In a possible implementation, a second drainage pipeline and a third water level detection device are included, the second drainage pipeline is connected to the water outlet of the first water storage tank, a second control valve is provided on the second drainage pipeline, and the third water level detection device is configured to detect a third water level of the first water storage tank;

[0019] The controller is electrically connected to the third water level detection device, and the controller is electrically connected to the second control valve. The controller is configured to control the second control valve to be in an open state and the first water tank to enter an active drainage mode if the third water level of the first water tank is greater than the third water level threshold.

[0020] In a possible implementation, a water pump is provided on the first water inlet pipeline, and the water pump is electrically connected to the controller.

[0021] In a second aspect, the present application provides a water-cooled air conditioner, comprising the air conditioning water system as described above.

[0022] In a possible implementation, the air conditioning water system includes a second water storage tank, the water-cooled air conditioner includes an evaporator and a water receiving pan, the water receiving pan is used to collect condensed water caused by the evaporator, and the water receiving pan is connected to the water inlet of the second water storage tank.

[0023] In a third aspect, the present application provides a control method for an air conditioning water system, which is applied to the air conditioning water system as described above, and the control method includes:

[0024] Obtain the operating conditions of the water-cooled air conditioner and the water temperature of the water-cooled condenser;

[0025] When the water-cooled air conditioner is in cooling mode, if the water temperature of the water-cooled condenser is greater than the first temperature threshold, the first control valve is controlled to be in an open state so that the hot water heated by heat exchange with the water-cooled condenser is stored in the first water tank through the first drainage pipeline.

[0026] In a possible implementation, it includes:

[0027] Obtaining a first water level of a water-cooled condenser;

[0028] When the water-cooled air conditioner is in cooling mode, if the first water level of the water-cooled condenser is less than the first water level threshold, the water-cooled air conditioner is controlled to enter a condensed water replenishment mode or an external water source replenishment mode.

[0029] In a possible implementation, the air conditioning water system of the water-cooled air conditioner includes a second water storage tank, the second water storage tank is used to store condensed water caused by the evaporator, the water inlet of the water-cooled condenser is connected to the water outlet of the second water storage tank through the first water inlet pipeline, and the control method includes:

[0030] Obtaining a second water level of a second water storage tank;

[0031] If the second water level of the second water storage tank is greater than the second water level threshold, the condensed water stored in the second water storage tank is controlled to enter the water-cooled condenser through the first water inlet pipeline.

[0032] In a possible implementation, the water inlet of the water-cooled condenser is connected to an external water source through a second water inlet pipeline, and the control method includes:

[0033] If the second water level of the second water storage tank is less than or equal to the second water level threshold, the external water source is controlled to enter the water-cooled condenser through the second water inlet pipeline.

[0034] In a possible implementation, the air conditioning water system includes a second drainage pipeline, the second drainage pipeline is connected to the water outlet of the first water storage tank, a second control valve is provided on the second drainage pipeline, and the control method includes:

[0035] obtaining a third water level of the first water storage tank;

[0036] If the third water level of the first water storage tank is greater than the third water level threshold, the second control valve is controlled to be in an open state.

[0037] In a possible implementation, it includes:

[0038] If the third water level of the first water storage tank is less than or equal to a fourth water level threshold, the second control valve is controlled to be in a closed state, wherein the fourth water level threshold is less than the third water level threshold.

[0039] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0040] The air conditioning water system and its control method, and the water-cooled air conditioner provided by the embodiment of the present application, when the water-cooled air conditioner is in cooling mode, a high-temperature refrigerant circulates in the water-cooled condenser, and the water-cooled condenser is cooled by cooling water. At this time, in order to achieve effective cooling of the water-cooled condenser, the cooling water will circulate in the corresponding pipeline system and exchange heat with the high-temperature refrigerant in the water-cooled condenser. After this heat exchange process, the water-cooled condenser can discharge high-temperature hot water at a temperature of 50°C-60°C. If the water temperature T of the water-cooled condenser is greater than the first temperature threshold Tm1, Tm1 can be set to 50°C, and the air conditioning water system controls the first control valve to be in an open state, so that the hot water after heat exchange with the water-cooled condenser is stored in the first water tank through the first drainage pipeline. When the user has a demand for hot water, the hot water stored in the first water tank can be used at any time, thereby avoiding the waste of hot water discharged from the water-cooled condenser, realizing the waste heat recovery of the condenser drainage, and saving energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0042] In order to more clearly illustrate the embodiments of the present application 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, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0043] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0044] Figure 1 A schematic diagram of the structure of an air conditioning water system provided in an embodiment of the present application;

[0045] Figure 2 A flow chart of a method for controlling a water-cooled air conditioner provided in one embodiment of the present application;

[0046] Figure 3 A flow chart of a method for controlling a water-cooled air conditioner provided in yet another embodiment of the present application.

[0047] Description of reference numerals:

[0048] 1. Air conditioning water system; 10. Water-cooled condenser; 11. First water storage tank; 12. First drainage pipeline; 13. Second water storage tank; 14. First water inlet pipeline; 15. Second water inlet pipeline; 16. Second drainage pipeline; 17. Water pump; V1. First control valve; V2. Second control valve; V3. Third control valve. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0050] The disclosure below provides many different embodiments or examples to realize the different structures of the present application. In order to simplify the disclosure of the present application, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present application. In addition, the present application can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0051] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0052] In the related art, water-cooled air conditioners generally use tap water as cooling water to cool the water-cooled condenser. The hot water generated after heat exchange with the water-cooled condenser is usually discharged outdoors or into the sewer pipe. This will cause a huge waste of energy. These hot waters contain a certain amount of thermal energy. If they can be used reasonably, the energy utilization efficiency can be improved to a certain extent and unnecessary energy loss can be reduced.

[0053] In order to solve the technical problem of direct discharge of hot water generated by the water-cooled condenser in the existing water-cooled air conditioner, resulting in energy waste, the present application provides an air-conditioning water system and a control method thereof, and a water-cooled air conditioner, which can realize the recovery and utilization of waste heat of condensed water and condenser drainage, save energy, and at the same time expand the scope of use of the water-cooled air conditioner, so that heat exchange can be carried out normally in relatively drier areas.

[0054] like Figure 1As shown, the present application provides an air conditioning water system 1, which is arranged on a water-cooled air conditioner. The air conditioning water system 1 includes a water-cooled condenser 10, a first water storage tank 11, a first drainage pipeline 12, a first temperature detection device and a controller. The first water storage tank 11 is used to store hot water required by users; a first end of the first drainage pipeline 12 is connected to a water outlet of the water-cooled condenser 10, a second end of the first drainage pipeline 12 is connected to a water inlet of the first water storage tank 11, and a first control valve V1 is arranged on the first drainage pipeline 12; the first temperature detection device is configured to detect the water temperature of the water-cooled condenser 10; the controller is electrically connected to the first temperature detection device, and the controller is electrically connected to the first control valve V1. The controller is configured to control the first control valve V1 to be in an open state when the water-cooled air conditioner is in a cooling mode, if the water temperature T of the water-cooled condenser 10 is greater than the first temperature threshold value Tm1, so that the hot water after heat exchange with the water-cooled condenser 10 and temperature increase is stored in the first water storage tank 11 through the first drainage pipeline 12.

[0055] It is understandable that when the water-cooled air conditioner is in cooling mode, high-temperature refrigerant flows in the water-cooled condenser 10, and the water-cooled condenser 10 is cooled by cooling water. At this time, in order to achieve effective cooling of the water-cooled condenser 10, the cooling water will circulate in the corresponding pipe system and exchange heat with the high-temperature refrigerant in the water-cooled condenser 10. After this heat exchange process, the water-cooled condenser 10 can discharge high-temperature hot water at a temperature of 50°C-60°C. If the water temperature T of the water-cooled condenser 10 is greater than the first temperature threshold Tm1, Tm1 can be set to 50°C, and the air conditioning water system 1 controls the first control valve V1 to be in an open state, so that the hot water after heat exchange with the water-cooled condenser 10 is stored in the first water storage tank 11 through the first drainage pipeline 12. When the user has a demand for hot water, the hot water stored in the first water storage tank 11 can be used at any time, thereby avoiding the waste of hot water discharged from the water-cooled condenser 10, realizing the waste heat recovery of the condenser drainage, and saving energy.

[0056] The demand for hot water includes but is not limited to water used in the kitchen, bathroom, etc. Of course, if T≤Tm1, it means that the temperature of the hot water after the water-cooled condenser 10 exchanges heat with the cooling water is not high enough. At this time, the first control valve V1 can be controlled to be in a closed state to prevent the warm water discharged from the water-cooled condenser 10 from mixing with the hot water stored in the first water storage tank 11, thereby reducing the temperature of the hot water in the first water storage tank 11, thereby ensuring that users can use hot water with a sufficiently high temperature.

[0057] It should be noted that the water-cooled condenser 10 is cooled by cooling water, which can be tap water, river water, well water or condensed water caused by an evaporator, etc. The temperature of tap water in summer does not exceed 30°C, usually below 25°C, and the temperature is stable, so the impact on refrigeration is small. The discharge temperature of the cooling water after passing through the water-cooled condenser 10 is 50°C-60°C. There is a large temperature difference between the cooling water before and after cooling, and the temperature difference can be fully utilized for heat exchange, so that the utilization rate of the cooling water is high, and the amount of water used is reduced. The heat exchange is stable when cooling with cooling water, and the high-temperature hot water formed after the heat exchange can be used directly or discharged to the outside. Since the heat is discharged through the cooling water, there is no need to cool the water-cooled condenser 10 by air cooling, the installation environment requirements are low, and the noise is small. There is only the running sound of the compressor, and there is no noise from the fan, which improves the comfort of users and saves electricity.

[0058] The inner wall and the outer wall of the first water storage tank 11 may be provided with an insulation layer to improve the insulation performance of the first water storage tank 11. These insulation layers are made of high-quality insulation materials, such as polyurethane foam and other high-efficiency insulation materials. The insulation layer can effectively reduce the loss of heat and greatly improve the insulation performance of the first water storage tank 11. In this way, when the user needs hot water in daily life, whether for washing, bathing or other purposes, the hot water stored in the first water storage tank 11 can be easily accessed at any time.

[0059] In the prior art, when the air conditioner is in cooling mode, a low-temperature gaseous refrigerant circulates inside the evaporator, which causes the surrounding ambient temperature to be relatively low. The surrounding air contains a certain amount of moisture. When the humid air passes through the evaporator, the water vapor in the air will perform heat exchange with the low-temperature refrigerant inside the evaporator, thereby condensing to form condensed water. This part of the condensed water is directly discharged to the outside, which will also cause a huge waste of energy. However, if only condensed water is used to exchange heat with the water-cooled condenser 10, the scope of use is relatively limited, and it is not applicable in dry areas. The amount of condensed water is difficult to continuously supply the water-cooled condenser 10 for heat exchange. Therefore, the present application designs a structure in which the condensed water replenishment mode and the external water source replenishment mode are parallel, which not only recovers the waste heat of the condensed water, but also expands the scope of use of the water-cooled air conditioner, and can also perform normal heat exchange in relatively dry areas.

[0060] In one embodiment, the air conditioning water circuit system 1 includes a first water level detection device, which is configured to detect the first water level of the water-cooled condenser 10; the controller is electrically connected to the first water level detection device, and the controller is configured to control the air conditioning water circuit system 1 to enter the condensed water replenishment mode or the external water source replenishment mode when the water-cooled air conditioner is in the cooling mode, if the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1. It can be understood that if H1<Hm1, it indicates that the cooling water of the water-cooled condenser 10 is insufficient and needs to be replenished. Condensed water can be used as the cooling water of the water-cooled condenser 10, or an external water source can be used as the cooling water of the water-cooled condenser 10. Not only does the waste heat of the condensed water recover, but also the use range of the water-cooled air conditioner is expanded, and heat exchange can be performed normally in relatively dry areas, ensuring the operating reliability of the water-cooled air conditioner.

[0061] In one embodiment, the air-conditioning water system 1 includes a second water tank 13 and a second water level detection device, the second water tank 13 is used to store condensed water caused by the evaporator, the water inlet of the water-cooled condenser 10 is connected to the water outlet of the second water tank 13 through the first water inlet pipe 14, and the second water level detection device is configured to detect the second water level of the second water tank 13; the controller is electrically connected to the second water level detection device, and the controller is configured to, when the water-cooled air conditioner is in cooling mode, if the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1, and the second water level H2 of the second water tank 13 is greater than the second water level threshold Hm2, then control the condensed water stored in the second water tank 13 to enter the water-cooled condenser 10 through the first water inlet pipe 14.

[0062] It should be noted that when the air conditioner is in cooling mode, low-temperature liquid refrigerant circulates inside the evaporator, which will cause the ambient temperature to be low. The surrounding air contains a certain amount of moisture. When the humid air passes through the evaporator, the water vapor in the air will exchange heat with the low-temperature refrigerant inside the evaporator, thereby condensing to form condensed water. Generally speaking, the temperature of this part of condensed water does not exceed 30°C in summer, and the temperature is stable, and it can also be used as cooling water for the water-cooled condenser 10. In the present application, this part of condensed water can be collected and stored in the second water storage tank 13. It can be understood that the second water storage tank 13 is capable of collecting condensed water caused by the evaporator. If the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1, it indicates that the water-cooled condenser 10 is in a water shortage state and the cooling water of the water-cooled condenser 10 is insufficient. At this time, it is judged whether the water level of the second water storage tank 13 is greater than the second water level threshold. If H2>Hm2, it indicates that the condensed water stored in the second water storage tank 13 is sufficient. Therefore, the condensed water stored in the second water storage tank 13 can be controlled to enter the water-cooled condenser 10 through the first water inlet pipe 14, and the condensed water is used to replenish the cooling water for the water-cooled condenser 10. At this time, the air-conditioning water system 1 enters the condensed water replenishment mode, thereby effectively recycling the condensed water caused by the evaporator, so that this part of the condensed water can exchange heat with the water-cooled condenser 10 to save energy.

[0063] There is no necessary connection between the first water level threshold and the second water level threshold, and Hm1 can be set to be Hm2, or Hm1 can be set to be Hm2, or Hm1 = Hm2, and the present application does not impose any specific limitation on this.

[0064] Optionally, both the inner wall and the outer wall of the second water storage tank 13 may be provided with an insulation layer to improve the insulation performance of the second water storage tank 13. These insulation layers are made of high-quality insulation materials, such as polyurethane foam and other high-efficiency insulation materials. The insulation layer can effectively reduce the loss of heat and greatly improve the insulation performance of the second water storage tank 13. In this way, when the water-cooled condenser 10 has a cooling water demand in summer, the condensed water in the second water storage tank 13 can be prevented from being heated up by the external high temperature environment. The second water storage tank 13 can provide the water-cooled condenser 10 with low-temperature condensed water, thereby improving the heat exchange efficiency of the water-cooled condenser 10.

[0065] In one embodiment, the water inlet of the water-cooled condenser 10 is connected to an external water source through a second water inlet pipe 15; the controller is configured to control the external water source to enter the water-cooled condenser 10 through the second water inlet pipe 15 when the water-cooled air conditioner is in cooling mode if the first water level of the water-cooled condenser 10 is less than the first water level threshold, and the second water level of the second water storage tank 13 is less than or equal to the second water level threshold.

[0066] It should be noted that the external water source can be tap water, and the second water inlet pipeline 15 is connected to the tap water supply network. It is understandable that if H2≤Hm2, it indicates that the condensed water stored in the second water storage tank 13 is less at this time, so the external water source is controlled to enter the water-cooled condenser 10 through the second water inlet pipeline 15 to replenish the water-cooled condenser 10 with cooling water. At this time, the air-conditioning water system 1 enters the external water source replenishment mode. In this mode, the external water source can continuously and stably provide the required cooling water for the water-cooled condenser 10. In this way, it can be ensured that there is always sufficient cooling water to carry out efficient heat exchange with the water-cooled condenser 10, thereby ensuring the operational reliability of the water-cooled air conditioner. When the cooling water of the water-cooled condenser 10 is insufficient, the condensed water is given priority to be used as the cooling water of the water-cooled condenser 10. Not only the waste heat of the condensed water is recovered, but also the scope of use of the water-cooled air conditioner is expanded, and heat exchange can be carried out normally in relatively dry areas.

[0067] In one embodiment, a third control valve V3 is provided between the first water inlet pipe 14 and the second water inlet pipe 15, and the controller is electrically connected to the third control valve V3. The controller is configured to control the on-off state of the third control valve V3 based on the second water level of the second water storage tank 13, so that the air-conditioning water system 1 enters the condensation water replenishment mode or the external water source replenishment mode.

[0068] Specifically, the third control valve V3 can be set as an electric three-way valve. If the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1, and the second water level H2 of the second water storage tank 13 is greater than the second water level threshold Hm2, the third control valve V3 is controlled to be in the first open state, so that the first water inlet pipe 14 and the water-cooled condenser 10 are connected, and the air-conditioning water system 1 enters the condensate replenishment mode; if the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1, and the second water level H2 of the second water storage tank 13 is less than or equal to the second water level threshold Hm2, the third control valve V3 is in the second connected state, so that the second water inlet pipe 15 and the water-cooled condenser 10 are connected, and the air-conditioning water system 1 enters the external water source replenishment mode. Until the second water level H2 of the second water storage tank 13 is greater than the fifth water level threshold Hm5, Hm5>Hm2, the third control valve V3 is controlled to be in a closed state, and the first water inlet pipeline 14 and the water-cooled condenser 10, as well as the second water inlet pipeline 15 and the water-cooled condenser 10 are both in a disconnected state.

[0069] Furthermore, a water pump 17 is provided on the first water inlet pipeline 14. The water pump 17 is electrically connected to the controller, and if the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1, and the second water level H2 of the second water storage tank 13 is greater than the second water level threshold Hm2, the third control valve V3 is controlled to be in the first open state, the first water inlet pipeline 14 and the water-cooled condenser 10 are in a connected state, and the water pump 17 is controlled to be in an open state, so that the condensed water stored in the second water storage tank 13 can stably provide the required cooling water for the water-cooled condenser 10.

[0070] In one embodiment, the air conditioning water system 1 includes a second drainage pipe 16 and a third water level detection device. The second drainage pipe 16 is connected to the water outlet of the first water tank 11. A second control valve V2 is provided on the second drainage pipe 16. The third water level detection device is configured to detect a third water level H3 of the first water tank 11. The controller is electrically connected to the third water level detection device, and the controller is electrically connected to the second control valve V2. The controller is configured to control the second control valve V2 to be in an open state if the third water level of the first water tank 11 is greater than the third water level threshold Hm3, and the first water tank 11 enters an active drainage mode.

[0071] It can be understood that if H3>Hm3, it indicates that the amount of hot water stored in the first water storage tank 11 is full at this time. In order to ensure that the water pressure of the first water storage tank 11 is normal, it is necessary to discharge a portion of the hot water, and the second control valve V2 is controlled to be in an open state, and the first water storage tank 11 enters the active drainage mode, and the hot water in the first water storage tank 11 is automatically discharged through the second drainage pipeline 16. Until the third water level H3 of the first water storage tank 11 is less than the fourth water level threshold Hm4, Hm4<Hm3, the second control valve V2 is controlled to be in a closed state, thereby ensuring that the first water storage tank 11 retains a portion of hot water, and the user always has enough hot water available.

[0072] The embodiment of the present application also provides a water-cooled air conditioner, comprising the air-conditioning water system 1 as described above.

[0073] When the water-cooled air conditioner is in cooling mode, high-temperature refrigerant flows in the water-cooled condenser 10, and the water-cooled condenser 10 is cooled by cooling water. At this time, in order to achieve effective cooling of the water-cooled condenser 10, the cooling water will circulate in the corresponding pipeline system and exchange heat with the high-temperature refrigerant in the water-cooled condenser 10. After this heat exchange process, the water-cooled condenser 10 can discharge high-temperature hot water at a temperature of 50°C-60°C. If the water temperature T of the water-cooled condenser 10 is greater than the first temperature threshold Tm1, Tm1 can be set to 50°C, and the air conditioning water system 1 controls the first control valve V1 to be in an open state, so that the hot water after heat exchange with the water-cooled condenser 10 is stored in the first water storage tank 11 through the first drainage pipeline 12. When the user has a demand for hot water, the hot water stored in the first water storage tank 11 can be used at any time, thereby avoiding the waste of hot water discharged from the water-cooled condenser 10, realizing the waste heat recovery of the condenser drainage, and saving energy.

[0074] In one embodiment, the air conditioning water system 1 includes a second water storage tank 13, and the water-cooled air conditioner includes an evaporator and a water receiving pan. The water receiving pan is used to collect condensed water caused by the evaporator, and the water receiving pan is connected to the water inlet of the second water storage tank 13 through a pipeline. In the cooling mode of the air conditioner, low-temperature liquid refrigerant circulates inside the evaporator, which will cause the surrounding ambient temperature to be low, and the surrounding air contains a certain amount of moisture. When the humid air passes through the evaporator, the water vapor in the air will exchange heat with the low-temperature refrigerant inside the evaporator, thereby condensing to form condensed water. This part of the condensed water flows to the water receiving pan and finally enters the second water storage tank 13. If the water-cooled condenser 10 is in a water-deficient state, the condensed water stored in the second water storage tank 13 can be controlled to enter the water-cooled condenser 10 through the first water inlet pipeline 14, and the condensed water is used to supplement the water-cooled condenser 10 with cooling water, so that this part of the condensed water exchanges heat with the water-cooled condenser 10, thereby realizing the effective recycling of the condensed water and saving energy.

[0075] like Figure 2 As shown, the embodiment of the present application provides a control method for an air conditioning water system 1, which is applied to the air conditioning water system 1 as described above, and the control method includes the following steps:

[0076] S11, obtaining the operating condition of the water-cooled air conditioner and the water temperature of the water-cooled condenser 10;

[0077] S12. When the water-cooled air conditioner is in cooling mode, if the water temperature of the water-cooled condenser 10 is greater than the first temperature threshold, the first control valve V1 is controlled to be in an open state so that the hot water heated by heat exchange with the water-cooled condenser 10 is stored in the first water storage tank 11 through the first drainage pipe 12.

[0078] When the water-cooled air conditioner is in cooling mode, high-temperature refrigerant flows in the water-cooled condenser 10, and the water-cooled condenser 10 is cooled by cooling water. At this time, in order to achieve effective cooling of the water-cooled condenser 10, the cooling water will circulate in the corresponding pipeline system and exchange heat with the high-temperature refrigerant in the water-cooled condenser 10. After this heat exchange process, the water-cooled condenser 10 can discharge high-temperature hot water at a temperature of 50°C-60°C. If the water temperature T of the water-cooled condenser 10 is greater than the first temperature threshold Tm1, Tm1 can be set to 50°C, and the air conditioning water system 1 controls the first control valve V1 to be in an open state, so that the hot water after heat exchange with the water-cooled condenser 10 is stored in the first water storage tank 11 through the first drainage pipeline 12. When the user has a demand for hot water, the hot water stored in the first water storage tank 11 can be used at any time, thereby avoiding the waste of hot water discharged from the water-cooled condenser 10, realizing the waste heat recovery of the condenser drainage, and saving energy.

[0079] Of course, if T≤Tm1, it means that the temperature of the hot water after the water-cooled condenser 10 exchanges heat with the cooling water is not high enough. At this time, the first control valve V1 can be controlled to be in a closed state to prevent the warm water discharged from the water-cooled condenser 10 from mixing with the hot water stored in the first water tank 11, thereby reducing the temperature of the hot water in the first water tank 11, thereby ensuring that users can use hot water with a sufficiently high temperature.

[0080] In one embodiment, Figure 3 As shown, the control method includes the following steps:

[0081] S13, obtaining a first water level of the water-cooled condenser 10;

[0082] S14. When the water-cooled air conditioner is in cooling mode, if the first water level of the water-cooled condenser 10 is less than the first water level threshold, the water-cooled air conditioner is controlled to enter a condensed water replenishment mode or an external water source replenishment mode.

[0083] It can be understood that if H1<Hm1, it indicates that the cooling water of the water-cooled condenser 10 is insufficient and needs to be supplemented with cooling water. The air-conditioning water system 1 enters the condensing water replenishment mode or the external water source replenishment mode, so that the water-cooled condenser 10 can exchange heat with the cooling water normally, thereby ensuring the operating reliability of the water-cooled air conditioner.

[0084] In one embodiment, the air conditioning water system 1 of the water-cooled air conditioner includes a second water storage tank 13, the second water storage tank 13 is used to store condensed water caused by the evaporator, the water inlet of the water-cooled condenser 10 is connected to the water outlet of the second water storage tank 13 through the first water inlet pipeline 14, and the control method includes the following steps:

[0085] Obtaining a second water level of the second water storage tank 13;

[0086] If the second water level of the second water storage tank 13 is greater than the second water level threshold, the condensed water stored in the second water storage tank 13 is controlled to enter the water-cooled condenser 10 through the first water inlet pipeline 14 .

[0087] It is understandable that the second water storage tank 13 can collect condensed water caused by the evaporator. If the first water level H1 of the water-cooled condenser 10 is less than the first water level threshold Hm1, it indicates that the water-cooled condenser 10 is in a water shortage state and the cooling water of the water-cooled condenser 10 is insufficient. If the water level of the second water storage tank 13 is greater than the second water level threshold, if H2>Hm2, it indicates that the condensed water stored in the second water storage tank 13 is sufficient at this time. Therefore, the condensed water stored in the second water storage tank 13 can be controlled to enter the water-cooled condenser 10 through the first water inlet pipeline 14, and the condensed water is used to replenish the cooling water for the water-cooled condenser 10. At this time, the air conditioning water system 1 enters the condensed water replenishment mode, thereby effectively recycling the condensed water caused by the evaporator, so that this part of the condensed water is heat exchanged with the water-cooled condenser 10, saving energy.

[0088] In one embodiment, the water inlet of the water-cooled condenser 10 is connected to an external water source through a second water inlet pipeline 15, and the control method further includes the following steps:

[0089] If the second water level of the second water storage tank 13 is less than or equal to the second water level threshold, the external water source is controlled to enter the water-cooled condenser 10 through the second water inlet pipeline 15 .

[0090] It is understandable that if H2≤Hm2, it indicates that the condensed water stored in the second water storage tank 13 is relatively small at this time, so the external water source is controlled to enter the water-cooled condenser 10 through the second water inlet pipe 15 to replenish the cooling water to the water-cooled condenser 10. At this time, the air conditioning water system 1 enters the external water source replenishment mode. In this mode, the external water source can continuously and stably provide the required cooling water to the water-cooled condenser 10. In this way, it can be ensured that there is always sufficient cooling water to carry out efficient heat exchange with the water-cooled condenser 10, thereby ensuring the operational reliability of the water-cooled air conditioner. In other words, when the cooling water of the water-cooled condenser 10 is insufficient, priority is given to using condensed water as the cooling water of the water-cooled condenser 10.

[0091] When the water-cooled air conditioner is in a non-cooling mode, for example, the water-cooled air conditioner is in a heating mode, a defrosting mode, or a shutdown mode, there is no need to consider that the cooling water of the water-cooled condenser 10 is insufficient, that is, the water-cooled air conditioner exits the water replenishment mode.

[0092] In one embodiment, the air conditioning water system 1 includes a second drainage pipeline 16, the second drainage pipeline 16 is connected to the water outlet of the first water storage tank 11, and a second control valve V2 is provided on the second drainage pipeline 16. The control method includes the following steps:

[0093] Obtaining a third water level of the first water storage tank 11;

[0094] If the third water level of the first water storage tank 11 is greater than the third water level threshold, the second control valve V2 is controlled to be in an open state, and the first water storage tank 11 enters the active drainage mode.

[0095] It can be understood that if H3>Hm3, it indicates that the amount of hot water stored in the first water tank 11 is full at this time. In order to ensure the normal water pressure of the first water tank 11, it is necessary to discharge a part of the hot water. The second control valve V2 is controlled to be in an open state, and the first water tank 11 enters the active drainage mode. The hot water in the first water tank 11 is automatically discharged through the second drainage pipe 16.

[0096] In one embodiment, the control method comprises the following steps:

[0097] If the third water level of the first water storage tank 11 is less than or equal to the fourth water level threshold, the second control valve V2 is controlled to be in a closed state, wherein the fourth water level threshold is less than the third water level threshold.

[0098] Until the third water level H3 of the first water storage tank 11 is lower than the fourth water level threshold Hm4, Hm4<Hm3, the second control valve V2 is controlled to be in a closed state, thereby ensuring that the first water storage tank 11 retains a portion of hot water, and the user always has enough hot water available.

[0099] In one embodiment, a signal acquisition device is provided at one end of the second drainage pipe 16 away from the first water storage tank 11. The signal acquisition device can be set as a touch panel, a voice recognition device, etc. The signal acquisition device is used to acquire the first signal. The control method includes the following steps:

[0100] A first signal is obtained, where the first signal includes a water-on signal and a water-off signal.

[0101] If the first signal is a boiling water signal, the second control valve V2 is controlled to be in an open state, the first water storage tank 11 enters a passive drainage mode, and the hot water in the first water storage tank 11 is automatically discharged through the second drainage pipeline 16, and the hot water is discharged according to user needs.

[0102] If the first signal is a water shut-off signal, the second control valve V2 is controlled to be in a closed state, and the first water storage tank 11 enters a passive drainage mode. After the user finishes using water, the second control valve V2 is closed.

[0103] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0104] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0105] The above is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features applied for herein.

Claims

1. An air conditioning water system, arranged on a water-cooled air conditioner, characterized in that: The air conditioning water system comprises: Water-cooled condenser; The first water storage tank is used to store hot water required by users; a first drainage pipeline, a first end of which is connected to the water outlet of the water-cooled condenser, a second end of which is connected to the water inlet of the first water storage tank, and a first control valve is provided on the first drainage pipeline; a first temperature detection device, the first temperature detection device being configured to detect the water temperature of the water-cooled condenser; A controller, wherein the controller is electrically connected to the first temperature detection device, and the controller is electrically connected to the first control valve. The controller is configured to, when the water-cooled air conditioner is in a cooling mode, control the first control valve to be in an open state if the water temperature of the water-cooled condenser is greater than a first temperature threshold, so that the hot water heated by heat exchange with the water-cooled condenser is stored in the first water storage tank through the first drainage pipeline.

2. The air conditioning water system according to claim 1, characterized in that: comprising a first water level detection device, the first water level detection device being configured to detect a first water level of the water-cooled condenser; The controller is electrically connected to the first water level detection device, and is configured to control the air conditioning water system to enter a condensed water replenishment mode or an external water source replenishment mode when the water-cooled air conditioner is in a cooling mode and the first water level of the water-cooled condenser is less than a first water level threshold.

3. The air conditioning water system according to claim 2, characterized in that: The air conditioning water system comprises a second water storage tank and a second water level detection device, the second water storage tank is used to store condensed water caused by the evaporator, the water inlet of the water-cooled condenser is connected to the water outlet of the second water storage tank through a first water inlet pipeline, and the second water level detection device is configured to detect a second water level of the second water storage tank; The controller is electrically connected to the second water level detection device, and the controller is configured to control the condensed water stored in the second water storage tank to enter the water-cooled condenser through the first water inlet pipe when the water-cooled air conditioner is in a cooling mode and if the first water level of the water-cooled condenser is less than the first water level threshold and the second water level of the second water storage tank is greater than the second water level threshold.

4. The air conditioning water system according to claim 3, characterized in that: The water inlet of the water-cooled condenser is connected to an external water source through a second water inlet pipeline; The controller is configured to control the external water source to enter the water-cooled condenser through the second water inlet pipe if the first water level of the water-cooled condenser is less than a first water level threshold and the second water level of the second water storage tank is less than or equal to a second water level threshold when the water-cooled air conditioner is in a cooling mode.

5. The air conditioning water system according to claim 4, characterized in that: A third control valve is arranged between the first water inlet pipeline and the second water inlet pipeline, and the controller is electrically connected to the third control valve. The controller is configured to control the on-off state of the third control valve based on the second water level of the second water tank so that the air-conditioning water system enters a condensed water replenishment mode or an external water source replenishment mode.

6. The air conditioning water system according to claim 1, characterized in that: It comprises a second drainage pipeline and a third water level detection device, wherein the second drainage pipeline is connected to the water outlet of the first water storage tank, a second control valve is arranged on the second drainage pipeline, and the third water level detection device is configured to detect a third water level of the first water storage tank; The controller is electrically connected to the third water level detection device, and the controller is electrically connected to the second control valve. The controller is configured to control the second control valve to be in an open state and the first water tank to enter an active drainage mode if the third water level of the first water tank is greater than a third water level threshold.

7. The air conditioning water system according to claim 3, characterized in that: The first water inlet pipeline is provided with a water pump, and the water pump is electrically connected to the controller.

8. A water-cooled air conditioner, characterized in that: It comprises the air conditioning water system as claimed in any one of claims 1 to 7.

9. The water-cooled air conditioner according to claim 8, characterized in that: The air conditioning water system includes a second water storage tank, the water-cooled air conditioner includes an evaporator and a water receiving pan, the water receiving pan is used to collect condensed water caused by the evaporator, and the water receiving pan is connected to the water inlet of the second water storage tank.

10. A control method for an air conditioning water system, applied to the air conditioning water system according to any one of claims 1 to 7, characterized in that: The control method comprises: Obtaining the operating condition of the water-cooled air conditioner and the water temperature of the water-cooled condenser; When the water-cooled air conditioner is in cooling mode, if the water temperature of the water-cooled condenser is greater than a first temperature threshold, the first control valve is controlled to be in an open state so that the hot water heated by heat exchange with the water-cooled condenser is stored in the first water storage tank through the first drainage pipeline.

11. The control method according to claim 10, characterized in that: include: Obtaining a first water level of the water-cooled condenser; When the water-cooled air conditioner is in a cooling mode, if the first water level of the water-cooled condenser is less than a first water level threshold, the water-cooled air conditioner is controlled to enter a condensed water replenishment mode or an external water source replenishment mode.

12. The control method according to claim 11, characterized in that: The air conditioning water system of the water-cooled air conditioner includes a second water storage tank, the second water storage tank is used to store condensed water caused by the evaporator, the water inlet of the water-cooled condenser is connected to the water outlet of the second water storage tank through a first water inlet pipeline, and the control method includes: obtaining a second water level of the second water storage tank; If the second water level of the second water storage tank is greater than a second water level threshold, the condensed water stored in the second water storage tank is controlled to enter the water-cooled condenser through the first water inlet pipeline.

13. The control method according to claim 12, characterized in that: The water inlet of the water-cooled condenser is connected to an external water source through a second water inlet pipeline, and the control method includes: If the second water level of the second water storage tank is less than or equal to a second water level threshold, the external water source is controlled to enter the water-cooled condenser through the second water inlet pipeline.

14. The control method according to claim 10, characterized in that: The air conditioning water system includes a second drainage pipeline, the second drainage pipeline is connected to the water outlet of the first water storage tank, and a second control valve is provided on the second drainage pipeline. The control method includes: obtaining a third water level of the first water storage tank; If the third water level of the first water storage tank is greater than a third water level threshold, the second control valve is controlled to be in an open state.

15. The control method according to claim 14, characterized in that: include: If the third water level of the first water storage tank is less than or equal to a fourth water level threshold, the second control valve is controlled to be in a closed state, wherein the fourth water level threshold is less than the third water level threshold.

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