Drainage system and air conditioning system

Abstract

The utility model discloses a drainage system and air conditioning system, the drainage system includes the water receiving tray of setting below the evaporimeter, and the drain pipe on water receiving tray still includes the multilayer water tank structure of being located in water receiving tray and with drain pipe intercommunication, at least one layer water tank structure in multilayer water tank structure is provided with the vent hole of intercommunication with outside. Compared with prior art, the utility model sets up multilayer water tank structure, and increases vent hole on one layer water tank structure, can balance the air pressure of multilayer water tank structure and outside, guarantees that condensed water can smoothly discharge, avoids the water flow and be sucked back.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning, and in particular to a drainage system and an air conditioning system. Background Technology

[0002] In modern buildings, cabinet-type fan coil units are a common type of air conditioning equipment, widely used in commercial buildings, hotels, office buildings, and other similar locations. During operation, these units generate a large amount of condensate, which needs to be drained through a drainage system.

[0003] Traditional drainage systems typically use U-shaped water traps to balance the internal and external air pressure of the unit, but this approach has the following problems in practical use:

[0004] Pressure differences can cause poor drainage: Cabinet-type air conditioner fan coil units are typically installed high up in buildings (such as inside ceilings or hanging cabinets). Due to the pressure difference between the inside and outside of the building, water in the drain pipes can easily be "drawn back," preventing condensate from draining smoothly. This problem is particularly pronounced when the drainage volume is large or intermittent, and may even lead to condensate buildup, affecting the normal operation of the air conditioning equipment.

[0005] Water seal is easily damaged: During drainage, if the air pressure difference is large, the water seal in the trap is easily damaged, causing odor to escape and affecting indoor air quality;

[0006] Low drainage efficiency: The traditional U-shaped water trap design is difficult to achieve efficient drainage control when dealing with complex air pressure changes, and is prone to blockage or overflow problems.

[0007] Maintenance difficulties: Due to the limited space of the fan coil units in cabinet air conditioners, traditional drainage systems are difficult to clean and maintain, further exacerbating drainage problems;

[0008] Therefore, how to design a drainage and air conditioning system that can ensure the smooth discharge of condensate is a technical problem that the industry urgently needs to solve. Utility Model Content

[0009] In view of the problem in the prior art that condensate cannot be discharged smoothly when the air pressure difference is large, this utility model proposes a drainage system and an air conditioning system.

[0010] The technical solution of this utility model is to propose a drainage system, including a water receiving tray 3 disposed below the evaporator 2 and a drain pipe 1 located on the water receiving tray 3, and also including a multi-layer water tank structure disposed in the water receiving tray 3 and connected to the drain pipe 1, wherein at least one layer of the multi-layer water tank structure is provided with a vent hole 11 communicating with the outside.

[0011] Furthermore, the multi-layer water tank structure includes at least a first-layer water tank 5 connected to the water receiving tray 3, a third-layer water tank 4 connected to the drain pipe 1, and a second-layer water tank 10 connecting the first-layer water tank 5 and the third-layer water tank 4.

[0012] The condensate in the water receiving tray 3 can pass through the first water tank 5, the second water tank 10, and the third water tank 4 in sequence before being discharged from the drain pipe 1.

[0013] Furthermore, the vent 11 is provided on the second layer water tank 10.

[0014] Furthermore, it also includes a water inlet 9 located on the first layer water tank 5, the height of which is flush with the water receiving tray 3.

[0015] Furthermore, it also includes a first water level detector 6 installed in the water receiving tray 3, and a first valve body for controlling the opening and closing state of the water inlet 9 is installed in the first layer water tank 5.

[0016] The first valve body controls the opening and closing state of the water inlet 9 based on the detection result of the first water level detector 6.

[0017] Furthermore, the second water tank 10 is provided with water passage holes 7 that are respectively connected to the first water tank 5 and the third water tank 4;

[0018] A second valve body is provided at the point where the water passage 7 connects with the first layer water tank 5 and the third layer water tank 4.

[0019] Furthermore, the second valve body is a one-way valve, which restricts the flow of condensate through the first water tank 5, the second water tank 10, and the third water tank 4 in sequence.

[0020] Furthermore, the third water tank 4 is a closed structure to prevent condensate in the water receiving tray 3 from flowing into the drain pipe 1.

[0021] Furthermore, a second water level detector 8 is installed in the third water tank 4, and a third valve body is installed at the connection between the third water tank 4 and the drain pipe 1.

[0022] The third valve body controls the opening and closing state of the drain pipe 1 based on the detection result of the second water level detector 8.

[0023] This utility model also proposes an air conditioning system, which has the above-mentioned drainage system.

[0024] Compared with the prior art, the present invention has at least the following beneficial effects:

[0025] 1. This utility model adopts a multi-layer water tank structure, and at least one layer of the water tank structure is provided with a vent that communicates with the outside. This can balance the air pressure difference between the multi-layer water tank structure and the outside, thereby avoiding the occurrence of backflow and allowing condensate to be discharged smoothly, thus improving the drainage efficiency of the drainage system.

[0026] 2. This utility model adopts a multi-layer water tank structure, which makes it easier for users to clean and maintain. At the same time, when used in conjunction with a water level detection device, it can ensure the smooth discharge of condensate, reduce the risk of blockage, and reduce maintenance costs. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0029] Figure 2 This is the control flowchart of this utility model;

[0030] Wherein, 1 represents the drain pipe;

[0031] 2 represents the evaporator;

[0032] 3 is the water receiving tray;

[0033] 4 is the third water tank;

[0034] 5 represents the first water tank;

[0035] 6 is the first water level detector;

[0036] 7 is a water passage hole;

[0037] 8 is the second water level detector;

[0038] 9 is the water inlet;

[0039] 10 is the second-level water tank;

[0040] 11 is a vent. Detailed Implementation

[0041] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0042] Therefore, a feature pointed out in this specification is used to describe one feature of one embodiment of the present invention, and does not imply that every embodiment of the present invention must have the described feature. Furthermore, it should be noted that this specification describes many features. Although certain features may be combined to illustrate possible system designs, these features may also be used in other combinations not explicitly stated. Therefore, unless otherwise stated, the described combinations are not intended to be limiting.

[0043] The principle and structure of this utility model will be described in detail below with reference to the accompanying drawings and embodiments.

[0044] In traditional drainage systems, the pressure difference between the inside and outside of a building can cause water to be drawn back into the drain pipes, preventing condensate from draining smoothly.

[0045] To address the above problems, this utility model proposes a drainage system, which includes a water receiving tray 3 disposed below the evaporator 2 and a drain pipe 1 located on the water receiving tray 3.

[0046] It also includes a multi-layer water tank structure located in the water receiving pan 3 and connected to the drain pipe 1, wherein at least one layer of the multi-layer water tank structure is provided with a vent 11 that communicates with the outside.

[0047] As mentioned above, the reason why condensate cannot be discharged smoothly is the pressure difference between the inside and outside of the building. Therefore, it is only necessary to solve the problem of pressure difference to ensure the smooth discharge of condensate. Based on this problem, this utility model is designed with a vent 11 that communicates with the outside on the multi-layer water tank structure.

[0048] Due to the presence of the vent 11, the multi-layer water tank structure can exchange gas with the outside world, thereby ensuring the air pressure balance between the multi-layer water tank structure and the outside world. Since the multi-layer water tank structure is directly connected to the drain pipe 1, this structure also ensures the internal and external air pressure balance at the drain pipe 1, which can prevent the water flow from being sucked back, thus ensuring that the condensate can be discharged smoothly.

[0049] In other words, based on the above-mentioned structural improvements, this utility model can balance the air pressure difference between the multi-layer water tank structure and the outside, thereby avoiding the occurrence of backflow, allowing condensate to be discharged smoothly, and improving the drainage efficiency of the drainage system.

[0050] Please see Figure 1 The multi-layer water tank structure of the drainage system in this utility model includes at least a first-layer water tank 5 connected to the water receiving tray 3, a third-layer water tank 4 connected to the drain pipe 1, and a second-layer water tank 10 connecting the first-layer water tank 5 and the third-layer water tank 4.

[0051] The condensate in the drip tray 3 can pass through the first water tank 5, the second water tank 10, and the third water tank 4 in sequence before being discharged from the drain pipe 1.

[0052] In this invention, the drain pipe 1 and the water receiving tray 3 are separated by the third water tank 4, so that the condensate in the water receiving tray 3 cannot be directly discharged through the drain pipe 1. Specifically, the third water tank 4 is a closed structure that is connected to the outside through two parts: the drain pipe 1 and the water passage hole 7 connected to the second water tank 10. In addition, a one-way valve is provided at the water passage hole 7 so that the condensate can only flow from the second water tank 10 to the third water tank 4.

[0053] The first water tank 5 is connected to the water receiving tray 3 and is used to introduce the condensate in the water receiving tray 3 into the first water tank 5. The first water tank 5 is provided with a water inlet 9, and the height of the water inlet 9 is flush with the water receiving tray 3, so that the condensate in the water receiving tray 3 can flow smoothly into the first water tank 5. In addition, a one-way valve is also provided at the water passage 7 connecting the second water tank 10 and the first water tank 5 to ensure that the condensate can only flow from the first water tank to the second water tank.

[0054] The second water tank 11 serves as a connecting structure, primarily used to guide the condensate in the first water tank 5 into the third water tank 4.

[0055] As can be seen, based on the above-mentioned three-layer water tank structure design, this utility model can smoothly guide the condensate in the water receiving tray 3 to the third water tank 4, and discharge it through the drain pipe 1.

[0056] Furthermore, the presence of a water inlet 7 and a one-way valve in the second-layer water tank 10 further prevents backflow. The second-layer water tank 10 has a certain temporary storage function, which can store a portion of condensate, thereby avoiding blockage or overflow caused by pressure difference and improving drainage efficiency.

[0057] Furthermore, as mentioned above, this utility model uses a vent 11 to balance the internal and external pressure difference; please refer to [link / reference needed]. Figure 1 The vent 11 is specifically designed to be located on the second water tank 10.

[0058] After the present invention provides a vent 11 on the second water tank 10 to communicate with the outside, it can balance the air pressure difference between the multi-layer water tank structure and the outside, thereby avoiding the occurrence of backflow, allowing condensate to be discharged smoothly, and improving the drainage efficiency of the drainage system.

[0059] In other embodiments of this utility model, the vent 11 can also be provided on the first water tank 5 or the third water tank 4. It is mainly used to connect with the outside world to achieve air pressure balance, thereby avoiding the occurrence of backflow. Since the first water tank 5, the second water tank 10, and the third water tank 4 are interconnected, theoretically, providing the vent 11 on the first water tank 5, the second water tank 10, and the third water tank 4 can achieve air pressure balance.

[0060] The ventilation hole 11 is placed on the second water tank 10 because the second water tank 10 is simultaneously connected to the first water tank 5 and the third water tank 4, which can better balance the air pressure in the entire multi-layer water tank structure.

[0061] Please see Figure 1 The present invention also includes a water inlet 9 disposed on the first layer water tank 5, the height of which is flush with the water receiving tray 3.

[0062] Here, the main function of the first water tank 5 is to connect with the water receiving pan 3 and guide the condensate in the water receiving pan 3 into the first water tank 5. However, if the height of the inlet 9 is set higher than the height of the water receiving pan 3, some of the condensate in the water receiving pan 3 will not be able to enter the first water tank 5.

[0063] In this invention, the height of the water inlet 9 is set to be flush with the water receiving tray 3. This way, when condensation occurs in the water receiving tray 3, it can directly enter the first water tank 5, then pass through the second water tank 10 and the third water tank 4, and finally be discharged through the drain pipe 1, thus avoiding the accumulation of condensation in the water receiving tray 3.

[0064] Please see Figure 1 The present invention also includes a first water level detector 6 disposed in the water receiving tray 3, and a first valve body for controlling the opening and closing state of the water inlet 9 is assembled in the first layer water tank 5.

[0065] The first valve body controls the opening and closing state of the inlet 9 based on the detection result of the first water level detector 6.

[0066] After the first water level detector 6 is installed in this utility model, the water level height in the water receiving pan 3 can be accurately determined, so that problems can be detected and dealt with in time. At the same time, this utility model can be adapted to different application scenarios, ensuring the stability and reliability of the drainage system.

[0067] Please see Figure 1 The present invention provides water passage holes 7 on the second water tank 10, which are respectively connected to the first water tank 5 and the third water tank 4;

[0068] A second valve body is installed at the connection point between the water inlet 7 and the first water tank 5 and the third water tank 4.

[0069] As mentioned above, the main purpose of setting the second water tank 10 in this utility model is to connect the first water tank 5 and the third water tank 4, so as to ensure that the condensate can be smoothly discharged from the water receiving tray 3, passing through the first water tank 5, the second water tank 10 and the third water tank 4 in sequence, and then discharged from the drain pipe 1.

[0070] Furthermore, in this utility model, the second valve body is configured as a one-way valve, which restricts the flow of condensate water through the first water tank 5, the second water tank 10, and the third water tank 4 in sequence.

[0071] The purpose of this utility model is to prevent backflow of condensate in the multi-layer water tank structure. By restricting the flow of condensate, it can be ensured that the condensate can pass through the first water tank 5, the second water tank 10, and the third water tank 4 in sequence, and finally be discharged through the drain pipe 1.

[0072] Furthermore, in this utility model, the third water tank 4 is a closed structure to prevent the condensate in the water receiving pan 3 from flowing into the drain pipe 1.

[0073] The main improvement of this utility model lies in guiding the flow of condensate through the three-layer water tank structure and avoiding the backflow phenomenon caused by the pressure difference between the inside and outside. If there is a connection between the water receiving pan 3 and the drain pipe 1, there will still be a backflow phenomenon from the drain pipe 1 to the water receiving pan 3. Therefore, this utility model needs to set the aforementioned third water tank 4 to completely separate the water receiving pan 3 from the drain pipe 1, thereby avoiding the problem of backflow phenomenon in the water receiving pan 3.

[0074] Furthermore, this utility model provides a second water level detector 8 inside the third water tank 4, and a third valve body at the connection between the third water tank 4 and the drain pipe 1.

[0075] The third valve body controls the opening and closing state of the drain pipe 1 based on the detection result of the second water level detector 8.

[0076] The second water level detector 8 and the third valve body are installed here to work in conjunction with the first valve body, the second valve body, and the first water level detector 6. This enables intelligent automatic adjustment of the drainage process based on changes in water level and air pressure, thereby avoiding drainage problems or overflows caused by excessive internal and external air pressure differences, and extending the service life of the unit equipment.

[0077] In addition, to achieve reasonable control of the water level, this utility model also provides a water level detector in the first water tank 5. This is because after the inlet 9 is opened, the condensate in the water tray 3 will directly enter the first water tank 5, causing the water level in the first water tank 5 to rise. However, the amount of water stored in the first water tank 5 is limited. In order to avoid storing too much condensate in the first water tank 5, a corresponding water level detector is needed to detect the water level in the first water tank 5, and then use it to control the opening and closing state of the one-way valve at the water passage 7, thereby preventing the accumulation of water in the first water tank 5.

[0078] In summary, the improvements resulting from this utility model can be further subdivided as follows:

[0079] Three independent water tanks are placed at the drain pipe 1. The first water tank 5 is the outermost layer and has a water inlet 9. The water inlet 9 can be opened and closed automatically to guide the condensate in the water tray 3 into the first water tank 5.

[0080] The second water tank 10 serves as a buffer chamber, connecting the first water tank 5 and the third water tank 4. It is equipped with a water passage hole 7 and a one-way valve to ensure that condensate can pass through the first water tank 5, the second water tank 10, and the third water tank 4 in sequence before being discharged through the drain pipe 1. At the same time, the second water tank 10 is equipped with a vent hole 11, which can be used to balance the air pressure between the second water tank 10 and the outside.

[0081] The third water tank 4 is connected to the drain pipe 1, which is used to finally drain the condensate.

[0082] Please see Figure 2 Based on the aforementioned setup of the first water tank 5, the second water tank 10, the third water tank 4, and the corresponding multiple water level detectors, the control flow proposed in this utility model is as follows:

[0083] The unit is operating normally after startup;

[0084] Condensate drips into the drip tray;

[0085] The unit begins water level detection; this refers to detecting the water level in the water collection pan 3 using the first water level detector 6, and determining whether condensate needs to be drained based on the water level in the water collection pan 3.

[0086] If the water level is detected to be low, storage will continue; this means that the water level in the water receiving pan 3 is too low. At this time, the water receiving pan still has a relatively large water storage capacity and can continue to store some condensate.

[0087] If the water level is detected to be medium, the inlet 9 is opened and the water passage 7 is closed, allowing condensate to flow into the first water tank 5. This refers to the water tray 3 containing a large amount of condensate. To prevent overflow due to excessive condensate, the inlet 9 needs to be opened to introduce the condensate into the first water tank 5. Since the first water tank 5 also has a certain water storage capacity, the water level needs to be checked again after the condensate enters the first water tank 5.

[0088] At this point, the water level in the first water tank 5 is checked. If the water level is low, storage can continue through the first water tank 5.

[0089] If the water level is high, it indicates that the first water tank 5 has already stored a significant amount of condensate. In this case, the water inlet 7 needs to be opened to allow the condensate to flow from the first water tank 5 into the second water tank 10. Simultaneously, the vent 11 should be opened to balance the air pressure and prevent excessive pressure difference that could cause backflow. The second water tank 10 also has a certain water storage capacity, so after the condensate enters the second water tank 10, the water level needs to be checked again.

[0090] At this point, the water level in the second water tank 10 is checked. If the water level is low, storage can continue through the second water tank 10.

[0091] If the water level is high, it indicates that the second water tank 10 has stored a lot of condensate. At this time, it is necessary to open the water inlet 7 to allow the condensate 7 to flow into the second water tank 4.

[0092] Since the third water tank 4 is connected to the drain pipe 1, the drain pipe 1 can be opened to drain the condensate after it enters the third water tank.

[0093] Based on the above settings, it can be seen that, compared with the prior art, this utility model has at least the following beneficial effects:

[0094] 1. This utility model adopts a multi-layer water tank structure, and at least one layer of the water tank structure is provided with a vent that communicates with the outside. This can balance the air pressure difference between the multi-layer water tank structure and the outside, thereby avoiding the occurrence of backflow and allowing condensate to be discharged smoothly, thus improving the drainage efficiency of the drainage system.

[0095] 2. This utility model adopts a multi-layer water tank structure, which makes it easier for users to clean and maintain. At the same time, when used in conjunction with a water level detection device, it can ensure the smooth discharge of condensate, reduce the risk of blockage, and reduce maintenance costs.

[0096] This utility model also proposes an air conditioning system having the above-mentioned drainage system.

[0097] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A drainage system comprising a water receiving tray (3) disposed below an evaporator (2) and a drain pipe (1) located on the water receiving tray (3), characterized in that, It also includes a multi-layer water tank structure located in the water receiving tray (3) and connected to the drain pipe (1), wherein at least one layer of the multi-layer water tank structure is provided with a vent (11) that communicates with the outside.

2. The drainage system according to claim 1, characterized in that, The multi-layer water tank structure includes at least a first-layer water tank (5) connected to the water receiving tray (3), a third-layer water tank (4) connected to the drain pipe (1), and a second-layer water tank (10) connecting the first-layer water tank (5) and the third-layer water tank (4); The condensate in the water receiving tray (3) can pass through the first water tank (5), the second water tank (10), and the third water tank (4) in sequence before being discharged from the drain pipe (1).

3. The drainage system according to claim 2, characterized in that, The ventilation hole (11) is provided on the second layer water tank (10).

4. The drainage system according to claim 2, characterized in that, It also includes a water inlet (9) located on the first layer water tank (5), the height of which is flush with the water receiving tray (3).

5. The drainage system according to claim 4, characterized in that, It also includes a first water level detector (6) installed in the water receiving tray (3), and a first valve body for controlling the opening and closing state of the water inlet (9) is installed in the first layer water tank (5); The first valve body controls the opening and closing state of the water inlet (9) based on the detection result of the first water level detector (6).

6. The drainage system according to claim 2, characterized in that, The second layer water tank (10) is provided with water passage holes (7) that are respectively connected to the first layer water tank (5) and the third layer water tank (4); A second valve body is provided at the point where the water passage (7) connects with the first layer water tank (5) and the third layer water tank (4).

7. The drainage system according to claim 6, characterized in that, The second valve body is a one-way valve, which restricts the flow of condensate through the first water tank (5), the second water tank (10), and the third water tank (4) in sequence.

8. The drainage system according to claim 2, characterized in that, The third water tank (4) is a closed structure to prevent the condensate in the water receiving tray (3) from flowing into the drain pipe (1).

9. The drainage system according to claim 2, characterized in that, A second water level detector (8) is installed in the third water tank (4), and a third valve body is installed at the connection between the third water tank (4) and the drain pipe (1); The third valve body controls the opening and closing state of the drain pipe (1) based on the detection result of the second water level detector (8).

10. An air conditioning system, characterized in that, The air conditioning system has a drainage system as described in any one of claims 1 to 9.

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