Condensate water echelon drainage and automatic cleaning combined air conditioner structure

Abstract

The utility model discloses a condensate water echelon drainage and automatic cleaning combined air conditioner structure which comprises a first-stage filtering device, a second-stage filtering device, a surface cooling structure, a wind power transmission device and a self-cleaning device. The primary filtering device comprises a frame, a filtering material and a protective net; the secondary filtering device is positioned on the air outlet side of the primary filtering device; the surface cooling structure comprises a surface air cooler, a water pan, a collecting opening, a water collecting device, a blocking overflow pipe, a liquid level measuring opening, a positive pressure air inlet, an air flow channel, a non-return device and a control valve. The self-cleaning device is positioned between the primary filtering device and the secondary filtering device and comprises a self-cleaning water taking pipe, a water flow transmission device and a self-cleaning spraying device. The device solves the problem that in the prior art, due to unreasonable water seal design and overlarge negative pressure of an air conditioning unit, after condensate water is generated by a surface air cooler in the working process of the unit, drainage of a condensate water outlet of a negative pressure section is not smooth.

Description

Technical Field

[0001] The utility model relates to the technical field of condensate drainage and filter device cleaning of combined air-conditioning units, in particular to a condensate stepwise drainage and automatic cleaning combined air-conditioning structure. Background Art

[0002] At present, the existing combined air-conditioning units are generally composed of several parts such as a mixing section, a surface cooling section, a fan section, and an air outlet section. Among them, the surface cooler is the main part that realizes the cooling, cooling and dehumidification functions.

[0003] When the air conditioning unit is cooling and dehumidifying, a large amount of condensed water will be generated on the surface of the cooler. This condensed water must be removed to make the cooler work properly. Usually, a water collecting pan is installed under the cooler to collect the condensed water generated by the cooler. Then the water collecting pan is connected to an open drainage system. At present, the most widely used method for condensed water discharge is U-bend drainage. However, in actual engineering practice, due to site reasons or problems of design and construction personnel, the height of the U-bend is not enough, the required water column height difference cannot be formed, and the slope of the drainage pipeline is not enough. Sometimes there is a reverse slope and elevation, causing the condensed water in the water collecting pan to overflow into the air conditioning unit, resulting in poor condensed water drainage. In this way, when the air conditioning unit is running, the condensed water will drip from all sides of the box. When the unit stops running, a large amount of condensed water stored in the air conditioning unit box will be discharged from the gap of the box, causing a large amount of water on the ground in the machine room. For units installed on the ceiling, the problem of condensation water dripping is more serious. A large amount of condensation water falls into the room through the ceiling, causing damage to the ceiling, indoor machinery and equipment, and office supplies to get wet, causing property losses.

[0004] At the same time, central air-conditioning equipment will produce a certain amount of dust in its ventilation parts during long-term use. If it is not cleaned for a long time, it will affect the output air volume and the quality of the air output of the air conditioner. Effective cleaning of dust can improve the performance of the air conditioner. The traditional method is to regularly remove the filter for cleaning. This process requires personnel to perform regular maintenance and cleaning, which has high maintenance and use costs and the cleaning effect is not obvious.

[0005] The current situation of air conditioning condensate discharge requires us to design a new type of condensate discharge device, which can drain smoothly under positive and negative pressure conditions and effectively prevent the backflow of air outside the unit. At the same time, based on the current situation that central air-conditioning equipment will produce a certain amount of dust in its ventilation parts during long-term use, which needs to be cleaned in time, we designed this condensate cascade drainage and automatic cleaning combined air-conditioning structure device. Utility Model Content

[0006] In view of the shortcomings of the prior art mentioned above, the purpose of the present utility model is to provide a combined air-conditioning structure with cascaded drainage and automatic cleaning of condensed water, so as to solve the problem in the prior art that, after the surface cooler produces condensed water during operation of the unit, the condensed water outlet in the negative pressure section is not drained smoothly due to unreasonable water seal design and excessive negative pressure of the air-conditioning unit, and at the same time solve the problem that a certain amount of dust is generated in the ventilation part of the central air-conditioning equipment during long-term use, which is difficult to clean.

[0007] The specific structure of the utility model is described as follows:

[0008] A condensate water cascade drainage and automatic cleaning combined air conditioning structure, comprising: a primary filter device and a secondary filter device and a surface cooling structure, a wind transmission device and a self-cleaning device, wherein the primary filter device comprises a frame, a filter material and a protective net; the secondary filter device is located at the air outlet side of the primary filter device;

[0009] The surface cooling structure includes a surface cooler, a water receiving tray, a collection port, a water collecting device, a blocking overflow pipe, a liquid level measuring port, a positive pressure air inlet, an air flow channel, a check device, and a control valve;

[0010] The wind transmission device provides the combined air conditioning unit with positive pressure air supply requirements;

[0011] The self-cleaning device is located between the primary filtering device and the secondary filtering device, and comprises a self-cleaning water intake pipe, a water flow transmission device, and a self-cleaning spray device.

[0012] The frame of the primary filter device adopts an aluminum alloy profile anti-cold bridge structure, and there is no condensation on the surface under high temperature and harsh working conditions; the filter material is activated carbon, and the protective net is a double-sided plastic-sprayed wire mesh.

[0013] Among them, the surface of the water receiving pan in the surface cooling structure is made of spray-molded technology and is inclined toward the collecting port, and the inclination angle is not less than 2‰. The collecting port includes an upper collecting port and a lower collecting port, the upper collecting port is connected to the top surface of the water receiving pan, and the lower collecting port is equipped with a condensate check device. The water collecting device is connected to the water receiving pan by welding, and the water collecting device is a cylindrical structure with an arc-shaped bottom. The water inlet of the barrier overflow pipe is located at the bottom of the water collecting device, and it is evenly arranged in one or more groups; the barrier overflow pipe is a double U-shaped interconnecting structure, and the liquid seal at the lowest point of the positive U-shaped structure plays a role in blocking the connection between the unit and the outdoor air, and the inverted U-shaped structure discharges excess condensed water through the siphon effect combined with the positive U-shaped structure.

[0014] The liquid level measuring port is located on the side wall of the water collecting device, and the minimum height is not less than 20 mm above the lowest point of the collecting port.

[0015] The positive pressure air inlet is located at the highest point of the water receiving tray and works together with the control valve, air flow channel and wind transmission device to provide positive pressure air supply requirements.

[0016] The self-cleaning water intake pipe is located at the lowest point of the water collecting device; the water flow transmission device adopts a direct current output mode and works in conjunction with the self-cleaning spray device.

[0017] The non-return device is used to prevent the positive pressure wind in the wind transmission device from entering the water collection device; to prevent the humid air in the water collection device from entering the interior of the combined air conditioning unit after the control valve fails, thereby avoiding pollution of the indoor air.

[0018] The utility model discloses a condensed water cascade drainage and automatic cleaning combined air conditioning structure, which has the following advantages compared with the prior art:

[0019] Since the water collecting device, water receiving tray, blocking overflow pipe and cleaning device are integrated in a condensate cascade drainage and automatic cleaning combined air conditioning structure, the problem of poor drainage of condensate water outlet in the negative pressure section after condensate water is generated in the surface cooler during unit operation due to unreasonable water seal design and excessive negative pressure in the prior art is eliminated, and the problem of regular cleaning of a certain amount of dust accumulated in the ventilation part of the central air-conditioning equipment during long-term use is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0022] Figure 2 It is a perspective schematic diagram of the elevation structure of the water collection device in the utility model.

[0023] Figure 3 It is a perspective schematic diagram of the planar structure of the water collection device in the utility model.

[0024] In the figure, 1, primary filtering device, 2, secondary filtering device, 3, surface cooling structure, 3-1, surface cooler, 32, water receiving tray, 33, collecting port, 331, upper part of collecting port, 332, Lower part of the collection port , 34. Water collecting device, 35. Blocking overflow pipe, 351. Blocking overflow water collecting pipe, 352. Blocking overflow drain pipe, 36. Liquid level measuring port, 37. Positive pressure air inlet, 38. Air flow channel, 39. Check device, 310. Control valve, 4. Wind transmission device, 5. Self-cleaning device, 51 Self-cleaning water intake pipe, 52. Water flow transmission device, 53. Self-cleaning spray device. DETAILED DESCRIPTION

[0025] The specific implementation of the present invention is further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be pipeline connection, pipe connection, or equipment connection; it can be split connection or integral connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the connection between the inside of two components or the outside of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] Example 1: Figure 1 , 2 As shown, the figure discloses a condensate water cascade drainage and automatic cleaning combined air conditioning structure, which includes a primary filtering device 1, a secondary filtering device 2, a surface cooling structure 3, a wind transmission device 4, and a self-cleaning device 5.

[0028] In an embodiment of the present application, the surface cooling structure 3 includes a surface cooler 31, a water receiving tray 32, a collection port 33, a water collecting device 34, a blocking overflow pipe 35, a liquid level measuring port 36, a positive pressure air inlet 37, an air flow channel 38, a check device 39, and a control valve 310.

[0029] The self-cleaning device 5 comprises a self-cleaning water intake pipe 51 , a water flow transmission device 52 , and a self-cleaning spray device 53 . The self-cleaning spray device 53 is located between the primary filtering device 1 and the secondary filtering device 2 .

[0030] The condensed water generated by the surface cooling structure 3 flows along the slope through the water receiving tray 32 to the collection port 33. Lower part of the collection port 332 The water flow check device directs the condensed water into the bottom of the water collecting device 34. When the liquid level is lower than the lower portion 332 of the collecting port, the condensed water is first discharged under the action of its own weight through the multiple groups of barrier overflow pipes 35. The condensed water is quickly discharged under negative pressure through the positive U and inverted U designs on the barrier overflow pipes 35. When the amount of condensed water is excessive and the liquid level is above the lower portion 332 of the collecting port and reaches 20 mm above the liquid level measuring port 36, the interior of the water collecting device 34 is at normal pressure. At this time, the control valve 310 is opened, and positive pressure wind enters the water collecting device 34 through the air flow channel 38 and the check device 39 to quickly discharge the condensed water. When the liquid level drops to the lower portion 332 of the collecting port, the control valve 310 is closed, and the drainage is switched to a negative pressure state.

[0031] Embodiment 2: The utility model also realizes the self-cleaning function of the filter device when the combined air-conditioning unit is in operation. When the pressure difference between the primary filter device 1 and the secondary filter device 2 changes, the condensed water at the bottom of the water collection device 34 is taken out through the clean water intake pipe 51 under the action of the water flow transmission device 52 and transmitted to the spray device 53, and evenly sprayed onto the primary filter device 1 and the secondary filter device 2 to wash away the floating dust.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A condensed water cascade drainage and automatic cleaning combined air conditioning structure, characterized in that: include: Primary filtration device, secondary filtration device, surface cooling structure, wind transmission device and self-cleaning device; The primary filtering device comprises a frame, filtering material and a protective net; The secondary filtering device is located on the air outlet side of the primary filtering device; The surface cooling structure includes a surface cooler, a water receiving tray, a collection port, a water collecting device, a blocking overflow pipe, a liquid level measuring port, a positive pressure air inlet, an air flow channel, a check device, and a control valve; The self-cleaning device is located between the primary filtering device and the secondary filtering device, and comprises a self-cleaning water intake pipe, a water flow transmission device, and a self-cleaning spray device.

2. The condensed water cascade drainage and automatic cleaning combined air conditioning structure according to claim 1, characterized in that: The frame in the primary filtering device adopts an aluminum alloy profile anti-cold bridge structure, the filtering material is activated carbon, and the protective net is a double-sided plastic-sprayed wire mesh.

3. The condensed water cascade drainage and automatic cleaning combined air conditioning structure according to claim 1, characterized in that: The water receiving tray in the surface cooling structure is inclined toward the collecting port, and the inclination angle is not less than 2‰.

4. The condensed water cascade drainage and automatic cleaning combined air conditioning structure according to claim 1, characterized in that: The collecting port comprises an upper collecting port portion and a lower collecting port portion, the upper collecting port portion is connected to the top surface of the water receiving tray, and the lower collecting port portion is provided with a condensate check device.

5. The condensed water cascade drainage and automatic cleaning combined air conditioning structure according to claim 4, characterized in that: The water collecting device and the water receiving tray are connected by welding, and the water collecting device is a cylindrical structure with an arc-shaped bottom.

6. The condensate water cascade drainage and automatic cleaning combined air conditioning structure according to claim 1, characterized in that: The water inlet of the barrier overflow pipe is located at the bottom of the water collection device, and it is evenly arranged in one or more groups; the barrier overflow pipe is a double U-shaped interconnecting structure, and the liquid seal at the lowest point of the positive U-shaped structure serves to isolate the unit from the outdoor air, and the inverted U-shaped structure discharges excess condensed water through the siphon effect combined with the positive U-shaped structure.

7. The condensate water cascade drainage and automatic cleaning combined air conditioning structure according to claim 1, characterized in that: The liquid level measuring port is located on the side wall of the water collecting device, and the minimum height is not less than 20 mm above the lowest point of the collecting port.

8. The condensed water cascade drainage and automatic cleaning combined air conditioning structure according to claim 1, characterized in that: The self-cleaning water intake pipe is located at the lowest point of the water collection device.

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