CN210425509U

CN210425509U - Anti-freezing type surface air cooler

Info

Publication number: CN210425509U
Application number: CN201921373778.1U
Authority: CN
Inventors: 钱锦; 张华�; 仲建风
Original assignee: Anhui Century Jielian Environmental Engineering Co Ltd
Current assignee: Anhui Century Jielian Environmental Engineering Co Ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-04-28
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a type surface cooler prevents frostbite, the fruit pick-up device comprises a frame body, there are multiunit heat exchanger fin group along air flow direction interval distribution in the frame, all be equipped with many heat exchange tubes that are used for through the refrigerant in every group heat exchanger fin group, the head and the tail end of two adjacent heat exchange tubes from top to bottom passes through the return bend connection, and the equal downward sloping of tail end of two adjacent heat exchange tubes from top to bottom. Compared with the prior art, the utility model has the following advantages: the utility model changes the inclination angle between the upper and lower adjacent heat exchange tubes, so that the accumulated water in the heat exchange tube can slide downwards under the action of self gravity when the surface cooler is stopped; the multiple groups of heat exchange sheet groups with intervals are distributed at intervals along the air flowing direction, so that condensed water can flow down from the intervals without additionally arranging a water baffle, the air resistance in the unit is reduced, and the power consumption is reduced.

Description

Anti-freezing type surface air cooler

Technical Field

The utility model relates to a surface cooler field especially relates to a type surface cooler prevents frostbite.

Background

The surface air cooler has two kinds: the heat exchanger of the fan coil, its performance has determined the ability of the fan coil to transport cold (hot) amount and influence to the blast volume, there is this apparatus in the ordinary air conditioner; and the other is an air-cooled finned heat exchanger in the air conditioning unit.

The refrigerant absorbs heat in the surface cooler to gradually lower the temperature of the cooled space. The fan coil surface cooler of the air handling unit cools the air flowing through the heat exchange fins outside the tube through the air conditioning chilled water (coolant water) flowing inside, the fan sends the cooled cold air to a use place for cooling, the coolant water brings the absorbed heat back to the refrigerating unit from the water return pipeline of the surface cooler, and the cooled cold air is sent back to the surface cooler for absorbing heat and cooling the flowing air and is continuously circulated.

In severe cold or cold regions, the surface air cooler must be taken into consideration for winter freeze protection when it is not in use. The existing antifreezing method is to discharge the accumulated water in the surface cooler through a drain valve arranged on a water supply and return header. However, in practical engineering, it is found that accumulated water in the surface air cooler cannot be drained due to the reasons of long stroke, thin pipe diameter, arrangement of pipe clusters and the like of a coil (heat exchange pipe) in the surface air cooler, and the accumulated water is a main reason for causing the coil of the surface air cooler to be frozen in winter. Particularly, accumulated water is difficult to be drained at the bent part where the upper heat exchange pipe and the lower heat exchange pipe are connected.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve lies in: because the coiling relation between the upper heat exchange tube and the lower heat exchange tube is complex, the heat exchange tubes are thin, and particularly, accumulated water is difficult to drain at the bent parts connected with the upper heat exchange tube and the lower heat exchange tube, so that the heat exchange tubes of the surface air cooler are frozen and cracked. To this end, an anti-freeze type surface cooler is provided.

The utility model discloses a solve above-mentioned technical problem through following technical scheme:

the utility model provides an anti-freezing type surface cooler, includes the framework, there are multiunit heat exchanger fin group along air flow direction interval distribution in the framework, all are equipped with many heat exchange tubes that are used for through the refrigerant in every group heat exchanger fin group, and the head and the tail end of two adjacent heat exchange tubes from top to bottom passes through the return bend connection, and the equal downward sloping of tail end of two adjacent heat exchange tubes from top to bottom.

Preferably, two adjacent heat exchange tubes in the air flowing direction on each group of heat exchange fin groups are arranged on a horizontal line at equal intervals.

Preferably, the heat exchange fin groups are at least three groups and are sequentially arranged in the air flowing direction at intervals as a first heat exchange fin group, a second heat exchange fin group and a third heat exchange fin group, and a distance which is convenient for the condensed water to flow down exists between every two adjacent heat exchange fin groups; the bottom in the frame body is provided with a drainage groove, and a plurality of drainage holes are uniformly distributed on the drainage groove.

Preferably, the distance is 2-3 cm.

Preferably, the drainage groove is a concave structure which is concave downwards and facilitates the downward collection of condensed water.

Preferably, one side of keeping away from second fin group in first fin group bottom is provided with the first slope portion that the downward sloping, be favorable to the comdenstion water landing, one side that second fin group was kept away from in third fin group bottom is provided with the third slope portion that the downward sloping, be favorable to the comdenstion water landing, second fin group bottom both sides all are equipped with the second slope portion that the downward sloping, are favorable to the comdenstion water landing.

Preferably, the heat exchange plates between the first heat exchange plate group and the second heat exchange plate group and between the second heat exchange plate group and the third heat exchange plate group are arranged in a staggered manner.

Compared with the prior art, the utility model has the following advantages: the utility model changes the inclination angle between the upper and lower adjacent heat exchange tubes, so that the accumulated water in the heat exchange tube can slide downwards under the action of self gravity when the surface cooler is stopped; the multiple groups of heat exchange sheet groups with intervals are distributed at intervals along the air flowing direction, so that condensed water can flow down from the intervals without additionally arranging a water baffle, the air resistance in the unit is reduced, and the power consumption is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1;

FIG. 3 is a schematic view of the structure of a drain groove in the direction B of FIG. 1;

fig. 4 is a schematic structural diagram of a heat exchanger plate group in the direction of B in fig. 1.

Detailed Description

The embodiments of the present invention will be described in detail below, and the present embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation manner and a specific operation process are given, but the scope of the present invention is not limited to the following embodiments.

Example 1

As shown in fig. 1 and 2, the anti-freezing type surface cooler comprises a frame body 10, a plurality of groups of heat exchange fin groups 30 are distributed in the frame body 10 at intervals along the air flowing direction, a plurality of heat exchange tubes 20 used for passing a refrigerant are arranged in each group of heat exchange fin group 30, the head ends and the tail ends of two adjacent heat exchange tubes 20 are connected through a bent tube 21, the tail ends of the two adjacent heat exchange tubes 20 are inclined downwards, accumulated water slides out along the inner walls of the heat exchange tubes under the action of gravity, the upper heat exchange tube 20, the lower heat exchange tube 20 and the bent tube 21 are a group of heat exchange tube group, the terminal of each group of heat exchange tube group is communicated with a water supply and return collecting tube, and when the surface cooler is stopped, the accumulated. The method for draining accumulated water is simple, the anti-freezing structure is simple, and the cost is low.

Two adjacent heat exchange tubes 20 on each group of heat exchange fin group 30 along the air flowing direction are arranged on a horizontal line at equal intervals, so that the heat exchange effect is improved.

As shown in fig. 2 and 3, the air can produce the comdenstion water when passing through the surface air cooler, in order to discharge the comdenstion water, sets up the breakwater usually in the rear of surface air cooler to avoid the comdenstion water that the air produced through the surface air cooler to get into subsequent part, but the existence of breakwater can increase the air resistance in the unit, and then leads to the unit power consumption to increase, has increased the running cost of unit. Therefore, the heat exchange fin groups 30 are at least three groups and are sequentially arranged in the air flowing direction at intervals as a first heat exchange fin group 33, a second heat exchange fin group 32 and a third heat exchange fin group 31, and a space for facilitating the flow of condensed water exists between two adjacent heat exchange fin groups 30; the bottom in the frame body 10 is provided with a drainage groove 11, a plurality of drainage holes 111 are uniformly distributed on the drainage groove 11, and the distance is 2-3 cm, preferably 2 cm. The condensed water can flow down from the space without additionally arranging a water baffle, thereby reducing the air resistance in the unit and reducing the power consumption.

In order to avoid the condensed water falling onto the drainage groove 11 from overflowing everywhere, the drainage groove 11 is a concave structure which is concave downwards and is beneficial to the downward collection of the condensed water.

One side of keeping away from second fin group 32 in first fin group 33 bottom is provided with the downward sloping, is favorable to the first slope 331 of comdenstion water landing, one side of keeping away from second fin group 32 in third fin group 31 bottom is provided with the downward sloping, is favorable to the third slope 311 of comdenstion water landing, second fin group 32 bottom both sides all are equipped with the downward sloping, are favorable to the second slope 321 of comdenstion water landing. The condensate water flowing downwards from the upper part of the heat exchange plate group 30 can be collected towards the center due to the inclined parts, and the condensate water are discharged from the drainage groove 11, so that the condensate water is prevented from overflowing from the periphery too much.

The heat exchange plates between the first heat exchange plate group 33 and the second heat exchange plate group 32 and between the second heat exchange plate group 32 and the third heat exchange plate group 31 are arranged in a staggered manner, so that the collision between the hot air and the heat exchange plate groups is increased, the formation of condensed water is facilitated, and the sufficient formation time and efficiency are ensured.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an anti-freezing type surface cooler, includes framework (10), there are multiunit fin group (30) along air flow direction interval distribution in framework (10), all is equipped with many heat exchange tubes (20) that are used for through the refrigerant in every group fin group (30), its characterized in that: the head ends and the tail ends of the two heat exchange tubes (20) which are adjacent up and down are connected through a bent tube (21), and the tail ends of the two heat exchange tubes (20) which are adjacent up and down are inclined downwards.

2. The antifreeze surface air cooler as set forth in claim 1, wherein: two adjacent heat exchange tubes (20) on each group of heat exchange fin group (30) along the air flowing direction are arranged on a horizontal line at equal intervals.

3. The antifreeze surface air cooler as set forth in claim 2, wherein: the heat exchange fin groups (30) are at least three groups and are sequentially arranged in the air flowing direction at intervals as a first heat exchange fin group (33), a second heat exchange fin group (32) and a third heat exchange fin group (31), and a space for facilitating the flow of condensed water exists between every two adjacent heat exchange fin groups (30); a drainage groove (11) is formed in the bottom in the frame body (10), and a plurality of drainage holes (111) are uniformly distributed in the drainage groove (11).

4. The antifreeze surface air cooler as set forth in claim 3, wherein: the distance is 2-3 cm.

5. The antifreeze surface air cooler as set forth in claim 4, wherein: the drainage groove (11) is of a concave structure which is concave downwards and is beneficial to downward collection of condensed water.

6. The anti-freeze type surface cooler of claim 5, wherein: one side that second fin group (32) were kept away from to first fin group (33) bottom is provided with the downward sloping, is favorable to first slope (331) of comdenstion water landing, one side that second fin group (32) were kept away from to third fin group (31) bottom is provided with the downward sloping, is favorable to third slope (311) of comdenstion water landing, second fin group (32) bottom both sides all are equipped with the downward sloping, are favorable to second slope (321) of comdenstion water landing.

7. The antifreeze surface air cooler as set forth in claim 6, wherein: the heat exchange plates between the first heat exchange plate group (33) and the second heat exchange plate group (32) and between the second heat exchange plate group (32) and the third heat exchange plate group (31) are arranged in a staggered mode.