Condensed water discharging device of central air conditioning unit

Abstract

The utility model provides a central air conditioning unit condensed water discharge device which comprises a buffer box, the buffer box is a hollow box body of a sealed structure, an air inlet valve is installed on one side of the top end of the buffer box, the air inlet valve is of a normally-closed electromagnetic valve structure, a high-level liquid level switch is arranged at the top end in the buffer box, and the high-level liquid level switch is of a normally-closed electromagnetic valve structure. A low-level liquid level switch is arranged at the bottom of the buffer tank, a water inlet and a water outlet are formed in one side of the buffer tank, the water inlet and the water outlet are both communicated with the buffer tank, the water inlet is connected with a condensed water pipeline of an air conditioner through a pipeline, and the water outlet is externally connected with a drainage pipeline. The condensed water discharging device of the central air conditioning unit is simple in structure and easy and convenient to install, condensed water in the air conditioning unit is stored through the buffer box, it can be guaranteed that the condensed water in the unit is normally discharged, not reserved in the unit and not overflowing randomly, the humidity of the working environment of a machine room is effectively guaranteed, and the working efficiency is improved. And potential safety hazards caused by accumulated water can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of central air-conditioning equipment, in particular to a condensate discharge device for a central air-conditioning unit. Background Art

[0002] A conventional central air conditioner consists of equipment such as a refrigeration host, a water pump, a cooling tower, and an end air handling unit (air handling unit or fan coil), as well as pipes connecting these devices. At present, the condensate generated in the surface cooler section of the purified central air-conditioning system is not easily discharged because the machine case is in a negative pressure state relative to the external space and remains in the unit. When the unit stops, it will overflow, causing water on the ground inside the unit case and in the machine room, which easily leads to an increase in the humidity of the entire machine room and affects the normal use of other equipment. At the same time, long-term water accumulation on the ground also poses a safety hazard. Content of the Utility Model

[0003] The purpose of the utility model is to provide a condensate discharge device for a central air-conditioning unit to solve the technical problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:

[0005] A condensate discharge device for a central air-conditioning unit includes a buffer tank. The buffer tank is a hollow sealed structure box body. An air inlet valve is installed on one side of the top of the buffer tank. The air inlet valve is a normally closed electromagnetic valve structure. A high-level liquid level switch is arranged at the top inside the buffer tank, and a low-level liquid level switch is arranged at the bottom of the buffer tank. One side of the buffer tank is provided with a water inlet and a water outlet, both of which are communicated with the buffer tank. The water inlet is connected to the condensate pipeline of the air conditioner through a pipeline, and the water outlet is externally connected to a drainage pipeline.

[0006] A first electromagnetic valve is also installed at the water inlet, and a second electromagnetic valve is installed at the water outlet. The first electromagnetic valve is a normally open electromagnetic valve structure, and the second electromagnetic valve is a normally closed electromagnetic valve structure.

[0007] The buffer tank is made of plastic.

[0008] Compared with the prior art, the condensate discharge device for a central air-conditioning unit of the present application has a simple structure and is easy to install. The buffer box is used to store the condensate in the air-conditioning unit, which can ensure that the condensate in the unit is discharged normally, does not remain in the unit, and does not overflow at will, effectively ensuring the humidity and cleanliness of the computer room working environment, and can also reduce the safety hazards caused by water accumulation. When the condensate reaches a certain water level in the buffer box (high water level), the high water level liquid switch is closed, the relay is energized and energized, and at the same time the first solenoid valve (water inlet valve) is closed, the second solenoid valve (drain valve) is opened, and the air inlet valve is opened at the same time, so that the pressure in the buffer box is consistent with the external pressure, and the condensate can be discharged through the water outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 : Schematic diagram of the structure of this application. DETAILED DESCRIPTION

[0010] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0011] Specific embodiment 1: Please refer to Figure 1 In an embodiment of the utility model, a condensate discharge device for a central air-conditioning unit includes a buffer box 1, which is made of plastic and is a hollow sealed structure box. An air intake valve 2 is installed on one side of the top of the buffer box 1. The air intake valve 2 is a normally closed electromagnetic valve structure. A high liquid level switch 3 is provided at the top of the buffer box 1, and a low liquid level switch 4 is provided at the bottom of the buffer box 1. A water inlet 101 and a water outlet 102 are provided on one side of the buffer box 1. The water inlet 101 and the water outlet 102 are both communicated with the buffer box 1. The water inlet 101 is connected to the condensate pipe of the air conditioner through a pipe, and the water outlet 102 is externally connected to a drainage pipe.

[0012] A first solenoid valve 5 is also installed at the water inlet 101, and a second solenoid valve 6 is installed at the water outlet 102. The first solenoid valve 5 is a normally open solenoid valve structure, and the second solenoid valve 6 is a normally closed solenoid valve structure. The air intake valve 2, the first solenoid valve 5, the second solenoid valve 6, the high liquid level switch 3 and the low liquid level switch 4 in the present application are all electrically connected to the external power supply control device.

[0013] Workflow:

[0014] (1) The air conditioning unit discharges condensate into the buffer tank 1. At this time, the valve of the first solenoid valve 5 is in a normally open state, the valve of the second solenoid valve 6 is in a normally closed state, the valve of the air intake valve 2 is in a normally closed state, the pressure in the buffer tank 1 is consistent with that in the air conditioning unit, and the condensate 7 flows naturally into the buffer tank 1;

[0015] (2) Discharge of condensate from buffer tank 1. When the condensate reaches a certain level (high water level) in buffer tank 1, the high water level switch is closed, the relay is energized, and the first solenoid valve 5 is closed, the second solenoid valve 6 is opened, and the air intake valve 2 is opened, so that the pressure in buffer tank 1 is consistent with the external pressure, and the condensate in buffer tank 1 begins to be discharged. Other pipelines can be connected externally to uniformly recycle the condensate 7.

[0016] (3) When the water is discharged to the low water level of the buffer tank 1, the low water level switch is disconnected (the low water level switch is always in the closed state when there is water in the buffer tank 1), the second solenoid valve 6 is closed, the first solenoid valve 5 is opened, and the condensate 7 flows into the buffer tank 1. The condensate is discharged after reaching the set water level. This state works in a continuous cycle.

[0017] Compared with the prior art, the condensate discharge device for a central air-conditioning unit of the present application has a simple structure and is easy to install. The buffer box is used to store the condensate in the air-conditioning unit, which can ensure that the condensate in the unit is discharged normally, does not remain in the unit, and does not overflow at will, effectively ensuring the humidity and cleanliness of the computer room working environment, and can also reduce the safety hazards caused by water accumulation. When the condensate reaches a certain water level in the buffer box (high water level), the high water level liquid switch is closed, the relay is energized and energized, and at the same time the first solenoid valve (water inlet valve) is closed, the second solenoid valve (drain valve) is opened, and the air inlet valve is opened at the same time, so that the pressure in the buffer box is consistent with the external pressure, and the condensate can be discharged through the water outlet.

[0018] It is obvious to those skilled in the art that the present invention is not limited to the details of the foregoing exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0019] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A condensate discharge device for a central air conditioning unit, characterized in that: It includes a buffer box, which is a hollow sealed structure box. An air intake valve is installed on one side of the top of the buffer box. The air intake valve is a normally closed electromagnetic valve structure. A high liquid level switch is provided at the top of the buffer box, and a low liquid level switch is provided at the bottom of the buffer box. A water inlet and a water outlet are provided on one side of the buffer box. The water inlet and the water outlet are both connected to the buffer box. The water inlet is connected to the condensate water pipe of the air conditioner through a pipe, and the water outlet is externally connected to a drainage pipe.

2. A condensate discharge device for a central air conditioning unit according to claim 1, characterized in that: A first solenoid valve is also installed at the water inlet, and a second solenoid valve is installed at the water outlet. The first solenoid valve is a normally open solenoid valve structure, and the second solenoid valve is a normally closed solenoid valve structure.

3. A condensate discharge device for a central air conditioning unit according to claim 2, characterized in that: The buffer box is made of plastic.

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