CN201811379U - Evaporative cooling chiller and fresh air combined unit - Google Patents

Abstract

The utility model discloses an evaporation cooling type cold water and fresh air combination machine set. A primary air inlet and a primary air outlet are arranged on the left side wall and the right side wall of a machine set casing, a filter, a pipe type indirect evaporation cooler, a direct evaporation cooler, a water baffle plate b and a primary air fan are sequentially arranged in the air inlet direction in the machine set casing, the air outlet of the primary air fan is communicated with a user fresh air inlet through a pipeline, a secondary air inlet and a secondary air outlet are arranged on the front side wall and the back side wall of the machine set casing in positions corresponding to the pipe type indirect evaporation cooler, the direct evaporation cooler sequentially comprises a spray nozzle b, a filling material and a water collection tank b from top to bottom, the water collection tank b is connected with a user sensible heat terminal through a pipeline, and the user sensible heat terminal is connected with the spray nozzle b through the pipeline. The combination machine set reaches the dual effect of a cold water machine set and a fresh air machine set in hot and dry regions, so the prepared cold is sufficiently used.

Description

Evaporative cooling chiller and fresh air combined unit

technical field

The utility model belongs to the technical field of air conditioning and refrigeration, and in particular relates to a composite unit which is composed of a tube-type indirect evaporative cooler and a direct evaporative cooler, and can produce cold water and cold air at the same time.

Background technique

Under the influence of the global energy shortage and my country's energy-saving and emission-reduction policies, evaporative cooling technology has attracted more and more attention from insiders in the air-conditioning and refrigeration industry. The current research on evaporative cooling technology has also expanded from the previous production of cold air to the production of cold water. However, the existing evaporative cooling air-conditioning equipment either simply utilizes the cold air produced by it, or simply utilizes the cold water produced by it, and fails to make full use of the cooling capacity produced by an evaporative cooling equipment.

Contents of the invention

The purpose of this utility model is to provide an evaporative cooling type cold water and fresh air composite unit, which is composed of a tubular indirect evaporative cooler and a direct evaporative cooler, which can play the dual role of a chiller unit and a fresh air unit, making full use of evaporative cooling air conditioning technology The cooling capacity obtained not only utilizes the cooled primary air, but also utilizes the circulating water whose temperature is lowered.

The technical scheme adopted by the utility model is that, the evaporative cooling type cold water and fresh air compound unit, the left and right side walls of the unit casing are provided with a primary air inlet and a primary air outlet, in the unit casing, with the primary air inlet Adjacent to each other, a filter, a tube-type indirect evaporative cooler, a direct evaporative cooler, a water baffle b, and a primary air fan are installed in sequence according to the air inlet direction. The air outlet of the primary air fan is connected to the user's fresh air inlet through a pipe. , on the front and rear side walls of the unit shell, there are secondary air inlets and secondary air outlets corresponding to the tubular indirect evaporative cooler. The direct evaporative cooler includes nozzle b, packing and The water collection tank b, the water collection tank b is connected to the sensible heat end of the user through the pipe, and the sensible heat end of the user is connected to the nozzle b through the pipe.

The utility model is also characterized in that,

A circulating water pump b is arranged on the pipe connecting the water collecting tank b and the end of sensible heat.

Among them, the tubular indirect evaporative cooler includes nozzle a, heat exchange tube, and water collection tank a from top to bottom. a.

Compared with the current evaporative cooling chiller, the evaporative cooling type cold water and fresh air combined unit of the utility model pre-cools the outdoor air through a tube-type indirect evaporative cooler instead of using high-temperature cold water for pre-cooling. Thereby simplifying the water system of the unit.

Description of drawings

Fig. 1 is the structural representation of the composite unit of the present invention;

Fig. 2 is a top view of the compound unit of the present invention.

In the figure, 1 primary air inlet, 2 filter, 3 water collection tank a, 4 secondary air fan, 5 nozzle a, 6 heat exchange tube, 7 secondary air outlet, 8 water baffle a, 9 circulating water pump a , 10 nozzle b, 11 filler, 12 water tank b, 13 circulating water pump b, 14 valve, 15 primary air fan, 16 water baffle b, 17 primary air outlet, 18 secondary air inlet. the

Detailed ways

The utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The composite unit of the utility model is composed of a tubular indirect evaporative cooler and a direct evaporative cooler. Fig. 1 and Fig. 2 are implementations in which the tube-type indirect evaporative cooler and the direct evaporative cooler are arranged in the same casing, showing the relative positions of the tube-type indirect evaporative cooler and the direct evaporative cooler.

The primary air inlet 1 and the primary air outlet 17 are arranged on the left and right side walls of the unit casing. In the unit casing, adjacent to the primary air inlet 1, filters 2, pipe-type indirect Evaporative cooler, direct evaporative cooler, water baffle b16 and primary air fan 15. The air outlet of the primary air fan 15 is connected with the fresh air inlet of the user through a pipe, and the secondary air inlet 18 and the secondary air outlet are arranged on the front and rear side walls of the unit casing, corresponding to the tubular indirect evaporative cooler. Tuyere 7.

The direct evaporative cooler includes nozzle b10, packing material 11 and water collection tank b12 from top to bottom. The water collection tank b12 is connected to the user’s sensible heat end through a pipe, and a circulating water pump b13 is installed on the pipe connecting the water collection tank b12 and the sensible heat end. , the sensible heat end of the user is connected to the nozzle b10 through a pipeline.

The tubular indirect evaporative cooler includes nozzle a5, heat exchange tube 6, and water collection tank a3 from top to bottom. .

The working process of the composite unit of the utility model:

1. The flow of primary air in the unit during summer operation:

The outdoor air passes through the primary air inlet 1, the filter 2, the heat exchange tube 6, the filler 11, the water baffle 16 in turn, and then is sent into the room through the primary air blower 15 through the air supply pipe as indoor fresh air. The outdoor air is firstly pre-cooled by the tube-type indirect evaporative cooler, iso-humidally cooled, and then heat-humidly exchanged with the circulating water in the direct evaporative cooler, and is sent into the room by the primary air fan 15 as fresh air after isenthalpic cooling.

2. The flow of secondary air in the unit during summer operation:

The outdoor air passes through the secondary air inlet 18 , the heat exchange tube 6 , the nozzle a5 , and the water baffle 8 in sequence, and then is discharged from the secondary air outlet 7 via the secondary air blower 4 . The secondary air exchanges heat and moisture with the circulating water from the nozzle a5 outside the heat exchange tube 6, and precools the primary air passing through the heat exchange tube 6 at the same time.

3. Flow of the water system during summer operation:

The high-temperature cold water produced by the compound unit of the utility model in the direct evaporative cooler is transported by the water collection tank b12 to the sensible heat end of the user through the pipeline under the action of the circulation pump b13, and then returned to the nozzle b10 by the sensible heat end through the pipeline for spraying Shower, and return to the water collection tank b12 after the filler 11 exchanges heat and moisture with the primary air.

The composite unit of the utility model is characterized in that: the high-temperature cold water produced by the direct evaporative cooler is transported to the sensible heat end of the user through pipelines to bear part of the sensible heat load in the room, and at the same time, it is cooled by the tubular indirect evaporative cooler and the direct evaporative cooler The primary air is led to the room through the air duct, and as the fresh air in the room, it bears all the latent heat load and part of the sensible heat load in the room. When the air and water exchange heat and moisture, not only the air is cooled but the water is also cooled, that is, the temperature of the circulating water is lowered while the cold air is produced, and the air temperature is also lowered while the cold water is produced. In hot and dry areas, one machine can be used for two purposes, and it can play the dual role of chiller and fresh air unit, so that the produced cooling capacity can be fully utilized.

Claims (3)

1. transpiration-cooled cold water and the newly compound unit of wind, it is characterized in that, the left and right sides wall of machine unit shell is provided with primary air air inlet (1) and primary air air outlet (17), in machine unit shell, adjacent with primary air air inlet (1), be disposed with filter (2) by the air intake direction, tube type indirect evaporative cooler, direct evaporative cooler, water fender b(16) and a wind blower fan (15), the air outlet of a described wind blower fan (15) is connected with the new wind air inlet of user by pipeline, on the two side, front and back of machine unit shell, be provided with auxiliary air air inlet (18) and auxiliary air air outlet (7) with the tube type indirect evaporative cooler corresponding section

Described direct evaporative cooler comprises nozzle b(10 from top to bottom successively), filler (11) and header tank b(12), header tank b(12) be connected with user's sensible heat end by pipeline, user's sensible heat end is by pipeline and nozzle b(10) be connected.

2. according to described transpiration-cooled cold water of claim 1 and the new compound unit of wind, it is characterized in that described header tank b(12) be provided with water circulating pump b(13 with the terminal pipeline that is connected of sensible heat).

3. according to claim 1 or 2 described transpiration-cooled cold water and the new compound unit of wind, it is characterized in that, described tube type indirect evaporative cooler comprises nozzle a(5 from top to bottom successively), heat exchanger tube (6), header tank a(3), header tank a(3) with nozzle a(5) be connected header tank a(3 by pipeline) with nozzle a(5) pipeline that is connected is provided with water circulating pump a(9).

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