CN108917153B - Drain pan assembly and air conditioner for lower air outlet - Google Patents

Abstract

The invention provides a water pan assembly and a lower air outlet machine room air conditioner, which can effectively collect condensed water and prevent the condensed water on the water pan assembly from being blown to the interior of a machine by wind as much as possible. The water pan body is provided with a vent hole, a water outlet and a water storage groove; the water outlet is communicated with the water storage groove; the water storage groove is positioned on the outer side of the inward flanging and on the leeward side of the lower end of the heat exchanger, a water inlet is formed in the contact part of the lower end of the heat exchanger and the water pan body, and a shielding structure is arranged above the water storage groove. By arranging the water storage groove and the water inlet, condensed water is intensively guided into the water storage groove, so that the condensed water is conveniently collected; the shielding structure above the water storage groove can change the direction of air flow passing through the lower end of the heat exchanger fin to enable the air flow to flow into the water storage groove, so that condensed water can be driven to flow into the water storage groove, and the condensed water is prevented from being blown out of the water receiving disc along with the air flow at the position to the inside of the machine through the air vent as far as possible.

Description

Drain pan assembly and air conditioner for lower air outlet

technical field

The invention relates to a machine room air-conditioning assembly, in particular to a structural improvement of a water-receiving tray of an air-conditioning assembly in a lower outlet fan room.

Background technique

At present, in order to save the space of the equipment, most of the machine room air conditioners adopt a frame-type overall structure. This kind of frame-type machine room air conditioner usually has two structural forms, namely the upper air outlet type and the lower air outlet type. For the top-flow type CRAC, the fan part is placed on the top of the frame, the heat exchanger part is placed under the fan part, and the bottom is the refrigeration part (including the compressor, cooling water or chilled water pipeline, as well as the manual ball valve on the pipeline, sight fluid Refrigeration accessories such as mirrors, solenoid valves, expansion valves, etc.). For the down-draft type machine room air conditioner, the heat exchanger part is placed at the top of the frame, and then the cooling part is placed below, and the fan part is placed at the bottom; when the air conditioner performs refrigeration, condensed water will form on the surface of the heat exchanger, in order to prevent condensation The water is effectively discharged, and a water receiving tray is arranged below the heat exchanger, and the condensed water flows into the water receiving tray along the fins of the heat exchanger, and is discharged through the drain pipe connected to the drain port of the water receiving tray.

For the down-flow type computer room air conditioner, the water receiving tray is in the shape of a "return", including a tray body and a ventilation hole arranged on the tray body. The inner flanging edge folded upward is provided, and the inner flanging edge, the outer flanging edge and the disk surface enclose an area for receiving water and bearing, and the heat exchanger is supported on this area. However, in a large-scale computer room air conditioning system, due to the large pressure difference on both sides of the heat exchanger, the surface wind speed of the heat exchanger is high, and there is a gap between the bottom of the heat exchanger fin and the supporting structure, which will generate horizontal airflow, which is perpendicular to the condensed water. In the direction of movement, the condensed water is accumulated at the root of the flanging in the water receiving tray, and cannot be discharged in time. Even the condensed water will be directly blown onto the internal flanging of the water receiving tray, and will be blown over the internal flanging of the water receiving tray with the upward airflow. Blow out the water tray and enter the inside of the machine, thereby affecting the normal operation of the machine.

SUMMARY OF THE INVENTION

The present invention proposes a water receiving tray assembly and an air conditioner for a lower air outlet room, which can effectively collect condensed water and prevent the condensed water on the water receiving tray assembly from being blown into the machine by the wind as much as possible.

In order to achieve the above technical purpose, the technical solution of the present invention is that a water receiving tray assembly includes a water receiving tray body and a heat exchanger. The bottom end of the heat exchanger is installed on the water receiving tray body, so The water receiving tray body is provided with a ventilation hole and a water outlet, the surrounding edges of the water receiving tray body are provided with upwardly folded outer flanges, and the surrounding edges of the ventilation holes are provided with upwardly folded inner flanges, so the The lower end of the heat exchanger is located on the outer side of the inner flange; the water receiving tray body is also provided with a water storage groove that is recessed downward relative to the water receiving tray body, and the water outlet is connected to the water storage groove. The grooves communicate with each other; the water storage groove is located on the outside of the inner flange, and is located on the leeward side of the lower end of the heat exchanger, where the lower end of the heat exchanger is in contact with the body of the water receiving pan A water inlet is provided to guide the condensed water into the water storage groove, and a shielding structure is arranged above the water storage groove to make the airflow flowing through the lower end of the heat exchanger to flow to the water storage groove Inside.

The shielding structure is in the shape of a long plate, and includes an installation part and a shielding part, the installation part is fixedly connected to the lower end of the heat exchanger, and the shielding part is located above the water storage groove.

The shielding part includes a horizontal plate and a vertical plate, one side of the horizontal plate is connected with the mounting part as a whole, and the opposite side is connected with the upper side of the vertical plate as a whole, so the The vertical plate extends downward into the water storage groove.

The length direction of the shielding structure is parallel to the length direction of the water storage groove.

The lower end of the heat exchanger is provided with a lower support plate arranged along the length direction of the lower end of the heat exchanger, and the lower end of the heat exchanger is in contact with the water receiving pan body by the lower support plate. The water inlet is opened on the lower support plate.

A plurality of the water inlets are arranged along the length direction of the lower support plate.

The height of the inner flanging is higher than the height of the outer flanging, and the upper edge of the inner flanging is provided with a secondary flanging located above the water storage groove, and the secondary flanging faces the outside of the vent.

The heat exchanger includes two inclined plate-shaped heat exchangers arranged oppositely, and the upper ends of the two inclined plate-shaped heat exchangers are connected as a whole. The heat exchangers are set in one-to-one correspondence.

The body of the water receiving tray is provided with sealing members for sealing both ends of the water storage groove.

The present invention also provides an air conditioner for a lower outlet fan room, comprising a water receiving tray assembly, characterized in that: the water receiving tray assembly is the above-mentioned water receiving tray assembly.

Compared with the prior art, the present invention has the following advantages and positive effects:

1. By arranging a water storage groove on the body of the water-receiving pan that is recessed downward relative to the body of the water-receiving pan, and setting a water inlet at the part where the lower end of the heat exchanger is in contact with the body of the water-receiving pan, the water-receiving pan is The condensed water received on the body is centralized and guided into the water storage groove, which is convenient for the collection of condensed water;

2. There is a shielding structure above the water storage groove. The shielding structure can change the airflow direction (wind direction) through the lower end of the heat exchanger fins so that the airflow flows into the water storage groove, thereby driving the condensed water to flow to the water storage groove. As far as possible, the condensed water is prevented from being blown out of the water-receiving tray and blown into the machine through the ventilation holes, which solves the problem of wind blowing water at the lower end of the heat exchanger, especially suitable for large-scale computer room air-conditioning systems. high situation;

3. Make more airflow pass through the heat exchanger area and improve the heat exchange efficiency.

The advantages and positive effects of the present invention will be explained in more detail in the following detailed description.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram 1 of the water receiving tray assembly of the present invention;

FIG. 2 is a schematic diagram 2 of the three-dimensional structure of the water receiving tray assembly of the present invention;

FIG. 3 is a three-dimensional schematic diagram of the three-dimensional structure of the water receiving tray assembly of the present invention;

4 is a vertical cross-sectional view of the water receiving tray assembly of the present invention;

Fig. 5 is an enlarged view of the structure of part I of Fig. 4;

6 is a schematic three-dimensional structure diagram of a water receiving tray body of the water receiving tray assembly of the present invention;

Fig. 7 is the three-dimensional structure schematic diagram of the air conditioner of the lower outlet fan room installed with the water receiving tray assembly of the present invention;

FIG. 8 is a vertical cross-sectional view of FIG. 7 .

Detailed ways

The specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

As shown in FIGS. 1 to 6 , a water receiving tray assembly in this embodiment includes a water receiving tray body 100 and a heat exchanger 200 . The pan body 100 is provided with a ventilation hole 110 and a water outlet 120. The peripheral edge of the water receiving pan body 100 is provided with an outer flange 130 folded upward, and the surrounding edge of the ventilation hole 110 is provided with an inner flange 140 folded upward. The lower end of the heater 200 is located at the outer side of the inner flange 140; different from the prior art, in this embodiment, the water receiving tray body 100 is further provided with a water storage groove 150 that is recessed downward relative to the water receiving tray body 100, The water outlet 120 is communicated with the water storage groove 150; the water storage groove 150 is located on the outer side of the inner flange 140, and is located on the leeward side of the lower end of the heat exchanger 200, and the lower end of the heat exchanger 200 is in contact with the water receiving tray body 100 A water inlet 300 for guiding the condensed water into the water storage groove 150 is provided at the part of the heat exchanger 200 , and a shielding structure 400 is provided above the water storage groove 150 to make the air flow through the lower end of the heat exchanger 200 flow to the water storage groove 150 Inside.

Specifically, in this embodiment, the water receiving tray body 100 is arranged below the heat exchanger 200, as shown in FIG. 6, and the overall shape is "return", and the diameter of the ventilation hole 110 should be as large as possible to minimize the The heat exchanger 200 includes two inclined plate-shaped heat exchangers arranged opposite to each other, the upper ends of the two inclined plate-shaped heat exchangers are connected as a whole, and the lower ends are fixedly connected to the water receiving tray body 100 On the upper side, it forms a triangle together with the water receiving pan body 100, and both sides of the heat exchanger 200 are closed by the partitions 500, so that the ventilation holes 110 are surrounded by the heat exchanger 200 and the two partitions 500, so that the passage through The air flow after heat exchange in the heat exchanger 200 as far as possible passes through the ventilation holes 110 and enters the lower refrigeration part to improve the heat exchange efficiency. Correspondingly, the number of water storage grooves 150 is two, which is one with the inclined plate heat exchanger. Of course, the number of heat exchangers 200 can also be only one, and the heat exchangers 200 can be arranged obliquely above the water receiving pan body 100. The wind from the ventilation holes 110 completely exchanges heat through the heat exchanger 200 . By arranging a water storage groove 150 that is recessed downward relative to the water receiving tray body 100, and providing a water inlet 300 at the lower end of the heat exchanger 200 in contact with the water receiving tray body 100, the water receiving tray body 100 is placed on the The received condensed water is centrally guided into the water storage groove 150, which is convenient for the centralized collection of the condensed water; at the same time, a shielding structure 400 is arranged above the water storage groove 150, and the function of the shielding structure is to change the flow through the lower end of the heat exchanger 200. The direction of the airflow guides the airflow into the water storage groove 150, and the airflow direction is shown by the arrow in FIG. 5 . As shown in FIG. 2 , when the wind blows from the gap at the lower end of the heat exchanger 200 (specifically, the gap between the bottom of the fin and the lower partition plate of the heat exchanger) to the side of the water storage groove 150, due to the existence of the shielding structure 400, The direction of the airflow here can be changed so that the wind blows into the water storage groove 150 first, so that the condensed water carried by the wind can fall into the water storage groove 150 as much as possible, and the condensation on the main body 100 of the water receiving tray can be effectively avoided. The water is blown into the inside of the machine or the water in the water receiving tray body is blown out, which is especially suitable for the high wind speed on the surface of the heat exchanger of the large-scale computer room air conditioning system.

As shown in FIG. 4 and FIG. 5 , in this embodiment, the shielding structure 400 is in the shape of a long plate, and includes a mounting portion 410 and a shielding portion 420 , and the mounting portion 410 can be fixedly connected to the heat exchanger 200 by screws or welding. On the lower end, the shielding portion 420 is located above the water storage groove 150, and the shielding portion 420 plays the role of shielding and changing the direction of airflow.

Further, the shielding portion 420 includes a horizontal plate 421 and a vertical plate 422, one side of the horizontal plate 421 is connected with the mounting portion 410 as a whole, and the opposite side is connected with the upper side of the vertical plate 422 as a whole, The vertical plate 422 extends downward into the water storage groove 150 . That is, the shielding portion 420 is in the shape of an inverted L, so as to surround the part where the lower end of the heat exchanger 200 is in contact with the water receiving pan body 100 in a half-packed manner, and fully block the airflow direction here, and the vertical plate 422 extends downward into the storage tank. into the water groove 150 , so that the condensed water in the airflow blocked by the shielding structure 400 can smoothly return to the water storage groove 150 , and then be discharged through the water outlet 120 . Preferably, the length direction of the shielding structure 400 is parallel to the length direction of the water storage groove 150 .

Since the heat exchanger 200 usually has an upper support plate, a lower support plate, a left end plate and a right end plate, the frame of the heat exchanger 200 is formed as a whole. In contact connection, the lower support plate 210 is arranged along the length direction of the lower end of the heat exchanger 200 . The water inlet 300 is arranged on the lower support plate 210 of the heat exchanger 200 in this embodiment, specifically at the bottom corner of the lower support plate 210, as shown in FIG. 3 and FIG. The condensed water on the body 100 enters the water inlet 300 as smoothly as possible. A plurality of water inlets 300 are arranged along the length direction of the lower support plate 210 to increase the contact area with the condensed water and increase the water inlet.

In order to further play the role of assisting wind and water blocking, in this embodiment, the height of the inner flange 140 is higher than the height of the outer flange 130, and the upper edge of the inner flange 140 is provided with a water storage groove 150 on the upper edge. The secondary flanging 160 faces the outside of the ventilation hole 110 . The height of the inner flanging 140 is relatively high, which also plays the role of blocking water and wind, and at the same time, the secondary flanging 160 also plays an auxiliary role. In addition, since the condensed water entering the water storage groove 150 is discharged to the outside of the air conditioner through the external drain pipe of the drain port 120, when the drain port 120 is blocked, the higher inner flange 140 and the additionally provided secondary flange 160 also plays the role of blocking condensation water from entering the ventilation hole 110 .

In addition, in order to avoid the influence of horizontal wind at both ends of the water storage groove 150 , in this embodiment, as shown in FIG. Specifically, the sealing member is a sealing sponge 600, which is arranged at the joints between the two ends of the water storage groove 150 and the left and right end plates and the left and right partition plates of the heat exchanger. The sealing sponge 600 is fixed by sticking to increase the sealing performance. Prevent strong wind from blowing into the heat exchanger from the side of the left and right partitions.

In the above, in this embodiment, the water storage groove 150, the shielding structure 400, and the sealing sponge 600 take shielding measures in multiple directions, which effectively prevents the external strong wind from blowing directly to the heat exchange from the joint of the heat exchanger and the water receiving tray. device to solve the problem of wind and water.

This embodiment also proposes an air conditioner for a lower outlet fan room, as shown in FIGS. 6 and 7 , including a water receiving tray assembly. For the specific structure of the water receiving tray assembly, please refer to the embodiments and appendixes of the water receiving tray assembly of the present invention. The descriptions of FIG. 1 to FIG. 5 are not repeated here. The water tray assembly is fixed on the outer frame of the CRAC, and at the same time, it cooperates with the left panel 1, the right panel 2, the back panel 3, and the front panel 4 of the CRAC to form the air cavity system of the CRAC. The air flow direction is shown by the arrow in Figure 7. Through the cooperation between the main body of the water receiving plate and the heat exchanger, the strong wind can be effectively prevented from blowing directly to the machine from the joint of the main body of the water receiving plate and the heat exchanger. Internally, the problem of wind blowing water is solved, and on the other hand, more airflow passes through the heat exchanger area, which improves the heat exchange efficiency.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms. Any person skilled in the art may use the technical content disclosed above to make changes or modifications to equivalent changes. Example. However, any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solutions of the present invention still belong to the protection scope of the technical solutions of the present invention.

Claims (10)

1. A water-receiving pan assembly for an air conditioner of a lower outlet fan room, comprising a water-receiving pan body and a heat exchanger, the heat exchanger is mounted on the water-receiving pan body with its bottom end, and the water-receiving pan body is There are ventilation holes and drainage ports on it, the surrounding edges of the water receiving pan body have outwardly folded folded edges, and the surrounding edges of the ventilation holes are provided with upwardly folded inward folds. The lower end is located on the outer side of the inner flange; it is characterized in that: the water receiving tray body is further provided with a water storage groove that is recessed downward relative to the water receiving tray body, and the water outlet is connected to the water storage groove. The water storage groove is located on the outer side of the inner flange and is located on the leeward side of the lower end of the heat exchanger. There is a water inlet for guiding the condensed water into the water storage groove, and a shielding structure is arranged above the water storage groove to make the airflow flowing through the lower end of the heat exchanger to flow into the water storage groove . 2 . The water-receiving pan assembly for an air conditioner with a lower outlet fan according to claim 1 , wherein the shielding structure is in the shape of a long strip, and includes a mounting portion and a shielding portion, and the mounting portion is fixedly connected to the mounting portion. 3 . On the lower end of the heat exchanger, the shielding portion is located above the water storage groove. 3 . The water-receiving tray assembly for an air conditioner of a lower outlet fan room according to claim 2 , wherein the shielding portion comprises a horizontal plate and a vertical plate, and one side of the horizontal plate is connected to the mounting portion. 4 . It is integrated, and the opposite side is connected to the upper side of the vertical plate as a whole, and the vertical plate extends downward into the water storage groove. 4 . The water receiving tray assembly for a room air conditioner with a lower outlet fan according to claim 2 or 3 , wherein the length direction of the shielding structure is parallel to the length direction of the water storage groove. 5 . 5. The water receiving tray assembly for the air conditioner of the lower outlet fan room according to claim 1, wherein the lower end of the heat exchanger is provided with a lower support plate arranged along the length direction of the lower end of the heat exchanger, so The lower end of the heat exchanger is in contact with the body of the water receiving tray through the lower support plate, and the water inlet is opened on the lower support plate. 6 . The water receiving tray assembly for an air conditioner of a lower outlet fan room according to claim 5 , wherein a plurality of the water inlets are provided along the length direction of the lower support plate. 7 . 7 . The water-receiving tray assembly for an air conditioner with a lower outlet fan according to claim 1 , wherein the height of the inner flange is higher than the height of the outer flange, and the upper edge of the inner flange is higher than the upper edge of the inner flange. 8 . A secondary flanging is arranged above the water storage groove, and the secondary flanging faces the outside of the ventilation hole. 8 . The water-receiving tray assembly for an air conditioner in a lower outlet fan room according to claim 1 , wherein the ventilation hole is a rectangular hole, the inner flange corresponds to a rectangular flange, and the water storage groove A side wall is located directly below a side wall of the inner flange. 9 . The water receiving tray assembly for an air conditioner of a lower outlet fan room according to claim 1 , wherein the body of the water receiving tray is provided with sealing members for sealing both ends of the water storage groove. 10 . 10 . An air conditioner for a lower outlet fan room, comprising a water receiving tray assembly, wherein the water receiving tray assembly is the water receiving tray assembly according to any one of claims 1 to 9 .

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