Condensate water drainage device for air conditioner in machine room

Abstract

The utility model relates to the technical field of air conditioner engineering, and provides a machine room air conditioner condensate water drainage device which comprises a condensate water disc and a drainage pipe, a drainage opening is formed in the bottom of the condensate water disc, and a low-water-level switch and a high-water-level switch are arranged in the condensate water disc. The drainage port is connected with the drainage pipe through a first pipeline and a second pipeline which are arranged in parallel, a water pump is arranged on the first pipeline, and an electromagnetic valve is arranged on the second pipeline; the water pump is arranged on the first pipeline and used for achieving upward drainage, the electromagnetic valve is arranged on the second pipeline and used for achieving natural downward drainage, and the field requirements for upward drainage and downward drainage are met; the low-water-level switch and the high-water-level switch are arranged to monitor the water level height in the condensate water disc, and condensate water leakage and water pump dry suction damage are prevented.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of air conditioning engineering, and more particularly relates to a condensate water drainage device for a computer room air conditioner. BACKGROUND

[0002] The computer room air conditioner uses air as a cold carrier medium, and condensate water is prone to flowing into the bottom condensate water tray during heat exchange between air and a heat exchanger. The computer room air conditioner is installed in a data center computer room, and the unit needs to be operated continuously for 24 hours without interruption, and water cannot flow into the computer room. At present, the drainage of the condensate water tray is mostly performed by gravity flow. However, due to the unsmooth downstream drainage, the water tray is prone to overflowing, or due to the fact that there is no electrostatic floor at the installation site, the drainage pipeline passes through the room corridor, which is prone to cause pipeline rupture and unattractive installation. In many cases, condensate water leakage is not allowed, and the leaked condensate water can cause irreversible damage to the equipment. In addition, when the unit is designed, the installation conditions of the site need to be determined to design the updrainage or down drainage. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the embodiment of the application is to provide a condensate water drainage device for a computer room air conditioner, so as to solve the technical problem of the risk of condensate water leakage in the prior art.

[0004] To achieve the above-mentioned purpose, the technical scheme adopted by the application is as follows: a condensate water drainage device for a computer room air conditioner is provided, which comprises a condensate water tray and a drainage pipe. The bottom of the condensate water tray is provided with a drainage port. A low water level switch and a high water level switch are arranged in the condensate water tray. The drainage port is connected with the drainage pipe through a parallelly arranged first pipeline and a second pipeline. A water pump is arranged on the first pipeline. An electromagnetic valve is arranged on the second pipeline.

[0005] In one embodiment, a check valve is further arranged on the water outlet end of the water pump on the first pipeline.

[0006] In one embodiment, an overflow switch is further arranged in the condensate water tray, and the height of the overflow switch is higher than that of the high water level switch.

[0007] In one embodiment, the water pump is a self-priming water pump or a submersible pump.

[0008] In one embodiment, the first pipeline, the second pipeline and the drainage pipe are all made of PVC pipes or PPR pipes.

[0009] In one embodiment, the first pipeline, the second pipeline and the drainage pipe are all flexible water pipes.

[0010] In one embodiment, a water baffle is arranged above the drainage port.

[0011] The machine room air conditioner condensate water drainage device has the beneficial effects that the water pump arranged on the first pipeline is used to realize the upper drainage, and the electromagnetic valve arranged on the second pipeline is used to realize the natural flow lower drainage; the low water level switch and the high water level switch are arranged to monitor the water level height in the condensate water tray, so that the condensate water leakage and the damage caused by the dry suction of the water pump are prevented. BRIEF DESCRIPTION OF DRAWINGS

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort.

[0013] Figure 1 The simplified structure diagram of the machine room air conditioner condensate water drainage device provided by the embodiments of the present application is shown.

[0014] In the drawings, various reference signs represent:

[0015] 1, condensate water tray; 2, water baffle; 3, drainage port; 4, check valve; 5, water pump; 6, drainage pipe; 7, overflow switch; 8, high water level switch; 9, low water level switch; 10, electromagnetic valve. DETAILED DESCRIPTION

[0016] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0017] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0018] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0019] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0020] like Figure 1 As shown in the illustration, a condensate drainage device for a computer room air conditioner according to an embodiment of this application will now be described. This condensate drainage device includes: a condensate pan 1 and a drain pipe 6. The bottom of the condensate pan 1 has a drain outlet 3, and a baffle plate 2 is located above the drain outlet 3. The condensate pan 1 contains a low-level switch 9 and a high-level switch 8. The drain outlet 3 is connected to the drain pipe 6 via a first pipe and a second pipe connected in parallel. A water pump 5 is installed on the first pipe, and a solenoid valve 10 is installed on the second pipe. A check valve 4 is also installed at the outlet end of the water pump 5 on the first pipe. An overflow switch 7 is also installed in the condensate pan 1, and the height of the overflow switch 7 is higher than that of the high-level switch 8.

[0021] Preferably, the water pump 5 is a self-priming water pump or a submersible pump. The first pipeline, the second pipeline, and the drain pipe 6 are all made of PVC pipe, PPR pipe, or flexible water pipe. The water pump 5 is installed on the first pipeline for upward drainage, and the solenoid valve 10 is installed on the second pipeline for natural downward drainage. Low-level switch 9 and high-level switch 8 are used to monitor the water level in the condensate pan 1 to prevent condensate leakage and damage to the water pump 5 due to dry suction.

[0022] The condensate drainage device for computer room air conditioners provided in this embodiment can simultaneously meet the functions of top drainage or bottom drainage depending on the site conditions. When the condensate in the heat exchanger of the computer room air conditioner flows into the condensate pan 1, it is discharged through the drain outlet 3. When the installation method on site is top drainage, the water pump 5 can be turned on to pressurize the drainage, while the solenoid valve 10 is closed. At this time, the drainage of the condensate pan 1 is only carried out by the water pump 5. A check valve 4 is installed in front of the outlet of the water pump 5 to prevent water from flowing back into the water pump 5. A baffle plate 2 is installed in the condensate pan 1 above the drain outlet 3. The baffle plate 2 can play a role in blocking water to prevent water from flowing back into the condensate pan 1 and splashing out in the event of a failure of the check valve 4.

[0023] The low water level switch 9 and the high water level switch 8 are arranged in the condensate water tray 1. When the water level in the condensate water tray 1 is lower than the low water level switch 9, the water pump 5 is not operated to prevent the water pump 5 from being damaged by dry running for a long time. When the water level in the condensate water tray 1 is between the high water level switch 8 and the low water level switch 9, the water pump 5 is started to drain water. When the water level in the condensate water tray 1 is higher than the high water level switch 8, the air conditioning unit can be started to alarm but not to stop. The overflow switch 7 is arranged in the condensate water tray 1 and is higher than the high water level switch 8. When the water in the condensate water tray 1 reaches the overflow switch 7, the operation of the air conditioning unit is stopped to prevent the water from overflowing from the condensate water tray 1 into the machine room.

[0024] When the installation mode in the field is natural flow drainage, the water pump 5 is closed and the electromagnetic valve 10 is opened. At this time, the drainage of the condensate water tray 1 is only by gravity natural flow. At the same time, the high water level switch 8 also plays a high water level alarm function and the overflow switch 7 plays an overflow alarm stop function.

[0025] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A condensate water drainage device for a machine room air conditioner, characterized by comprising: The application relates to a condensate water tray (1) and a drain pipe (6), wherein the bottom of the condensate water tray (1) is provided with a drain opening (3), the condensate water tray (1) is internally provided with a low water level switch (9) and a high water level switch (8), the drain opening (3) is connected with the drain pipe (6) through parallelly arranged first and second pipelines, a water pump (5) is arranged on the first pipeline, and an electromagnetic valve (10) is arranged on the second pipeline. A check valve (4) is further arranged on the water outlet end of the water pump (5) on the first pipeline.

2. The condensate drain apparatus for a computer room air conditioner as set forth in claim 1, wherein: An overflow switch (7) is further arranged in the condensate water tray (1), and the height of the overflow switch (7) is higher than that of the high water level switch (8).

3. The condensate drain apparatus for a computer room air conditioner as set forth in claim 2, wherein: The water pump (5) is a self-suction water pump or a submersible pump.

4. The condensate drain apparatus for a computer room air conditioner as set forth in claim 3, wherein: The first pipeline, the second pipeline and the drain pipe (6) are all made of PVC pipes or PPR pipes.

5. The condensate drain apparatus for a computer room air conditioner as set forth in claim 4, wherein: The first pipeline, the second pipeline and the drain pipe (6) are all flexible water pipes.

6. The condensate drain apparatus for a computer room air conditioner as set forth in claim 4, wherein: A water baffle (2) is arranged above the drain opening (3).

7. The condensate drain apparatus for a computer room air conditioner as set forth in claim 5 or 6, wherein: ​

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