CN201106995Y - hermetic cooler - Google Patents

Abstract

The utility model relates to a closed cooler, which comprises: a box body, the lower part of the left and right side walls of the box body is provided with an air inlet, and a horizontal bracket is provided in the inner cavity of the box body; a louver fixedly connected to the air inlet of the box body, the louver is composed of The frame, the louvers fixedly connected to the frame and the air filter are composed; the axial flow fan installed on the top of the box; the V-shaped heat exchange element fixedly connected to the bracket inside the box, which consists of two sets of V-shaped cross-sections. The finned tube is composed of a windshield fixedly connected to both ends of the finned tube, and the heat exchange element is provided with a water inlet and a water outlet. The closed cooler of the utility model has high heat exchange efficiency, good cooling effect and anti-freezing function during use.

Description

hermetic cooler

technical field

The utility model relates to a closed cooler.

Background technique

Traditional closed coolers (or closed cooling towers) mostly use coil-shaped or coil-shaped heat exchange elements with fillers, and then spray the surface of the heat exchange elements with spray water circulation to achieve the effect of evaporative cooling. Due to the large contact thermal resistance of the heat exchange element, the heat exchange efficiency is low, and this cooling method is easy to form dirt on the surface of the heat exchange element, which further affects the efficiency of the heat exchange element; at the same time, long-term spraying wastes water resources, which is not conducive to water resources. Reasonable utilization; Traditional closed coolers (or closed cooling towers) are difficult to prevent freezing in winter due to structural reasons. In northern regions, the cost of antifreezing is relatively high.

Utility model content

The purpose of the utility model is to provide a closed cooler capable of improving heat exchange efficiency.

In order to achieve the above object, the utility model takes the following design scheme:

A closed cooler, characterized in that it comprises: a box, the lower part of the left and right side walls of the box is provided with an air inlet, and a horizontal bracket is provided in the inner cavity of the box; it is fixedly connected to the air inlet of the box The louvers at the place, the louvers are composed of a frame, a louver fixedly connected to the frame and an air filter; an axial flow fan arranged on the top of the box; a V-shaped changer fixedly connected to the bracket in the box The heat element is composed of two sets of finned tubes with V-shaped cross-sections and windshields fixedly connected to both ends of the finned tubes, and the heat exchange element is provided with a water inlet and a water outlet.

The inner wall of the box is provided with a micro-mist nozzle, and the micro-mist nozzle is located at the lower part of the outer side of the V-shaped heat exchange element; a water receiving device is provided below the V-shaped heat exchange element.

The water receiving device is a water receiving tray fixedly connected to the bottom of the support.

A wet curtain is fixedly connected to the inside of the louver, and the water receiving device is a water tank fixedly connected to the bottom of the box body. Water pipes are connected.

The front end of the finned tube is high and the rear end is bottomed, and the rear end of the finned tube is connected to an emptying device, and the emptying device includes a header pipe, a collecting pipe, a first branch pipe, a second branch pipe, and a main pipe. , the first manual valve, the second manual valve, solenoid valve, liquid level sensor and temperature sensor; The bottom of the pipe is respectively connected with the inlets of the first branch pipe and the second branch pipe located below it, the outlets of the first branch pipe and the second branch pipe are respectively connected with the main pipe, the first manual valve and the The electromagnetic valve is arranged on the first branch pipe, and the second manual valve and the liquid level sensor are arranged on the second branch pipe.

Each set of finned tubes is a reciprocating four-flow or multi-flow composite finned tube stacked in an equitriangular arrangement.

The finned tube is a bare tube or a tube with internal ribs.

The box body is an airtight structure.

The utility model has the advantages of:

1. In the closed cooler of the utility model, the V-shaped heat exchange element is conducive to the maximum utilization of the heat exchange area, and the heat exchange effect is good. The axial flow fan and windshield ensure that the finned tube heat exchange element forms a negative pressure to improve the heat exchange effect.

2. In the closed cooler of the utility model, the setting of the micro-mist spray head makes the humid air evaporate twice on the surface of the heat exchange element, which can increase the cooling effect of the cooler.

3. The closed cooler of the utility model is equipped with a wet curtain, a water pump and a water distribution pipe, and the cooling effect is further improved by introducing wind into the cooler and humidifying it.

4. In the closed cooler of the present invention, the box body adopts a closed structure, which makes the heat exchange element form a negative pressure, further reduces the cooling rate of water evaporation, and further improves the cooling effect.

5. The closed cooler of the utility model is equipped with an emptying device, which prevents the cooler from being damaged by freezing when it is used outdoors in winter.

Description of drawings

Fig. 1 is a structural schematic diagram of the utility model embodiment one

Fig. 2 is the schematic diagram of the shutter structure in the utility model

Fig. 3 is the structural schematic diagram of the second embodiment of the utility model

Figure 4 is a schematic diagram of the connection structure between the heat exchange element and the emptying device in the utility model

Detailed ways

As shown in Figure 1 and Figure 2, a closed cooler of the present invention is characterized in that it comprises:

The box body 1, the lower part of the left and right side walls of the box body 1 is provided with an air inlet, and a horizontal bracket 8 is provided in the inner cavity of the box body 1;

The louver 3 fixedly connected to the air inlet of the box body 1, the louver 3 is composed of a frame 31, a louver 32 fixedly connected to the frame 31 and an air filter 33;

An axial flow fan 7 arranged on the top of the box body 1;

The V-shaped heat exchange element 5 fixedly connected to the inner support 8 of the box body 1 is composed of two sets of finned tubes 51 with a V-shaped cross section and windshields 52 fixedly connected to both ends of the finned tubes 51. The heating element 5 is provided with a water inlet 53 and a water outlet 54 .

During use, the medium to be cooled (water, oil, etc.) enters and exits through the heat exchange element 5 . The cooling air is filtered by the louvers 3 and enters the cooler after being filtered and cleaned by the filter net 33 to ensure that the surface of the heat exchange element 5 of the cooler is clean and maintain the effect for a long time. The frame 31 and the cooler box 1 can be quickly connected, which is convenient for disassembly and cleaning . The cooling air passes through the fin surface of the heat exchange element 5 to cool the internal cooled medium and then is drawn out by the axial flow fan 7, so as to achieve the purpose of cooling the cooled medium. The V-shaped heat exchange element 5 is conducive to the maximum use of the heat exchange area, and the heat exchange effect is good. The axial fan 7 and the windshield 52 ensure that the finned tube heat exchange element 5 forms a negative pressure to improve the heat exchange effect.

The inner wall of the box body 1 is provided with a micro-mist nozzle 4 connected to the tap water pipe with a mist particle diameter of less than 40 microns, and the micro-mist nozzle 4 is located at the lower part of the outer side of the V-shaped heat exchange element 5; a water receiving device is provided below the V-shaped heat exchange element 5 2. When the closed cooler of the utility model works in a relatively high temperature environment, the micro-mist nozzle 4 is opened to mix the sprayed mist particles with the air entering from the shutter 3, and the mixed air passes through the fins of the heat exchange element 5 After the medium to be cooled inside the surface evaporative cooling heat exchange element is drawn out by the axial flow fan 7, the spray condensed water falls into the water receiving device 2.

The water receiving device 2 is a water receiving tray fixedly connected to the bottom of the bracket 8 .

As shown in Figure 3, the inside of the louver 3 is fixedly connected with a wet curtain 6, and the water receiving device 2 is a water tank 9 fixedly connected to the bottom of the box body 1. A water pump 10 is arranged in the water tank 9, and the water outlet of the water pump 10 passes through the pipeline and the wet curtain 6. The diffuser pipe 11 above is connected. When working, the water pump 10 pumps out the water in the water tank 9 and sprinkles it on the wet curtain 6 through the water distribution pipe 11 and drenches the entire wet curtain 6, so that the air entering through the louvers 3 contacts the wet curtain and is cooled and humidified to increase the cooling capacity of the cooler. Heat exchange effect. After using the wet curtain 6, if the temperature of the cooled medium does not reach the requirement, the micro-mist nozzle 4 is opened to assist heat exchange.

As shown in Figure 4, the front end of the finned tube 51 is high and the rear end is bottomed, and the rear end of the finned tube 51 is connected with an emptying device 12, and the emptying device 12 includes a header pipe 13, a collecting pipe 14, and a first branch pipe 15. , the second branch pipe 16, the main pipe 17, the first manual valve 18, the second manual valve 19, the solenoid valve 20, the liquid level sensor 21 and the temperature sensor 22 used to detect the outdoor temperature; the rear end of the finned tube 51 is connected to the The header pipes 13 are connected, and the bottoms of all the header pipes 13 are connected with the collecting pipe 14, and the bottoms of the collecting pipe 14 are respectively connected with the inlets of the first branch pipe 15 and the second branch pipe 16 located below it, and the first branch pipe 15 The outlet of the second branch pipe 16 is connected to the main pipe 17 respectively, the first manual valve 18 and the solenoid valve 20 are arranged on the first branch pipe 15, the second manual valve 19 and the liquid level sensor 21 are arranged on the second branch pipe 16 on. When the cooler is placed outdoors and the heat exchange is stopped, the emptying device starts, the first manual valve 18 is in the open state, the second manual valve 19 is in the closed state, and the solenoid valve 20 is in the closed state. When the temperature sensor 22 When it is detected that the outdoor temperature is lower than the set temperature, the solenoid valve 20 is opened to drain water. If the solenoid valve 20 does not work normally during emptying and the liquid level sensor 22 detects that the liquid level is high, it can be drained by opening the second manual valve. 19 Drain the water to ensure that the water in the cooler is emptied to prevent the pipeline from being damaged by freezing due to water storage.

Each set of finned tubes 51 is a reciprocating four-flow or multi-flow composite finned tube stacked in an equitriangular arrangement.

The finned tube 51 is a bare tube or a tube with internal ribs.

The box body 1 has a sealed structure to ensure that the heat exchange element 5 forms a negative pressure to improve the heat exchange effect when it is working.

Claims (8)

1. A closed cooler, characterized in that it comprises: A box body, the lower part of the left and right side walls of the box body is provided with an air inlet, and a horizontal bracket is provided in the inner cavity of the box body; a louver fixedly connected to the air inlet of the box, the louver consisting of a frame, a louver fixedly connected to the frame and an air filter; An axial flow fan arranged on the top of the box; The V-shaped heat exchange element fixedly connected to the bracket in the box is composed of two sets of finned tubes with a V-shaped cross section and windshields fixedly connected to both ends of the finned tube. There are water inlets and outlets. 2. The closed cooler according to claim 1, wherein the inner wall of the box is provided with a micro-mist nozzle, and the micro-mist nozzle is located at the lower part of the outer side of the V-shaped heat exchange element; the V-shaped heat exchange element A water receiving device is arranged under the heating element. 3. The closed cooler according to claim 2, wherein the water receiving device is a water receiving pan fixedly connected to the bottom of the support. 4. The closed cooler according to claim 2, wherein a wet curtain is fixedly connected to the inner side of the louver, and the water receiving device is a water tank fixedly connected to the bottom of the box, and the water tank is equipped with There is a water pump, and the water outlet of the water pump is connected with the diffuser pipe above the wet curtain through a pipeline. 5. The closed cooler according to claim 1 or 2 or 3 or 4, characterized in that the front end of the finned tube is higher than the rear end bottom, and the rear end of the finned tube is connected to an emptying device , the emptying device includes a header pipe, a collecting pipe, a first branch pipe, a second branch pipe, a main pipe, a first manual valve, a second manual valve, a solenoid valve, a liquid level sensor and a temperature sensor; the fin The rear ends of the pipes are connected to the header pipes, and the bottoms of all the header pipes are connected to the collecting pipes, and the bottoms of the collecting pipes are respectively connected to the inlets of the first branch pipe and the second branch pipe located below it, and the first The outlets of the branch pipe and the second branch pipe are respectively connected to the main pipe, the first manual valve and the electromagnetic valve are arranged on the first branch pipe, and the second manual valve and the liquid level sensor are arranged on the said main pipe. on the second branch pipe. 6. The closed cooler according to claim 1 or 2 or 3 or 4, wherein each set of finned tubes is a reciprocating four-flow or multi-flow composite finned tube stacked in an equitriangular arrangement. 7. The hermetic cooler according to claim 1 or 2 or 3 or 4, characterized in that said finned tube is a bare tube or a tube with internal fins. 8. The hermetic cooler according to claim 1 or 2 or 3 or 4, characterized in that the box body is a closed structure.

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