Vertical indirect evaporative cooler

Abstract

The utility model relates to a vertical indirect evaporative cooler, and belongs to the technical field of fresh air systems. Comprising a heat exchange core, a circulating water pump, a spraying system and a water collecting tray, the spraying system is arranged on the heat exchange core, the water collecting tray is arranged below the heat exchange core and connected with the spraying system through the circulating water pump, the section of the water collecting tray is trapezoidal, and the water collecting tray is connected with the circulating water pump. Spraying water can be recycled, indoor air conditioner condensate water can be used as a supplementary water source, water resources are saved, the overall size is reduced through the water collecting disc, the water level is increased, pumping operation of the circulating water pump is facilitated, the water supplementing time is prolonged, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to a vertical cooler and belongs to the technical field of fresh air systems. Background Art

[0002] Indirect evaporative coolers are an application of evaporative cooling technology. Usually, secondary air (indoor exhaust air) and spray water flow in the coil, and the cold air is transferred to the primary air outside the pipe (outdoor fresh air) through the pipe wall. The primary air is dehumidified, cooled, and then sent into the room to create a comfortable and constant temperature environment indoors.

[0003] At present, the horizontal layout is popular in the market. However, due to the secondary air and spray water running outside the pipe, the horizontal layout is prone to form dry spots on the leeward side of the heat exchange tube (that is, there is no spray water contact). At the same time, due to the existence of the upper heat exchange tube, the spray water drops on its surface and forms a bounce shape, which is not easy to evenly cover the surface of the heat exchange tube and affects the spray effect of the lower heat exchange tube. When the spray water flow rate is large, the coil is prone to vibration and the collision noise is large. In addition, since most coils are arranged in a regular triangle cross-row, the air flow channel is small, the resistance is large, and the windward side is prone to scaling, which affects the heat exchange effect.

[0004] Therefore, it is urgent to propose a vertical indirect evaporative cooler to solve the above technical problems. Utility Model Content

[0005] The present invention aims to overcome the defects of the prior art and provide a vertical indirect evaporative cooler. A brief summary of the utility model is given below to provide a basic understanding of certain aspects of the utility model. It should be understood that this summary is not an exhaustive summary of the utility model. It is not intended to identify the key or important parts of the utility model, nor is it intended to limit the scope of the utility model.

[0006] The technical solution of this utility model:

[0007] A vertical indirect evaporative cooler comprises a heat exchange core, a circulating water pump, a spray system and a water collecting pan. The heat exchange core is provided with a spray system, a water collecting pan is provided below the heat exchange core, the water collecting pan is connected to the spray system through the circulating water pump, the cross section of the water collecting pan is trapezoidal, and the water collecting pan is connected to the circulating water pump.

[0008] Preferably, the upper inner cavity of the water collecting tray is wide at the top and narrow at the bottom, the lower portion of the water collecting tray has an inner cavity with a square cross section, and the lower inner cavity of the water collecting tray is connected to the circulating water pump.

[0009] Preferably, the heat exchange core is a round tube, an oval tube or a twisted tube.

[0010] Preferably, it also includes an outer shell, the heat exchange core is installed in the outer shell, the inside of the heat exchange core is a tube side, and the outside of the heat exchange core and the inside of the outer shell are a shell side.

[0011] Preferably: both the tube side and the shell side are provided with inlet and outlet pipes, and the spray water of the spray system flows into the water collecting tray through the tube side or the shell side.

[0012] Preferably: the inlet and outlet pipes include a first inlet and outlet pipe, a second inlet and outlet pipe, a third inlet and outlet pipe and a fourth inlet and outlet pipe, the first inlet and outlet pipe is fixedly installed on the upper end of the outer shell, the second inlet and outlet pipe is fixedly installed on the lower end of the outer shell, the first inlet and outlet pipe, the pipe side and the second inlet and outlet pipe are connected in sequence, the third inlet and outlet pipe and the fourth inlet and outlet pipe are fixedly installed on the left and right sides of the outer shell respectively, the third inlet and outlet pipe, the shell side and the fourth inlet and outlet pipe are connected in sequence, the spray system is fixedly installed above the upper end panel, and the spray water of the spray system flows into the water collecting tray through the pipe side.

[0013] Preferably: the inlet and outlet pipes include a secondary air inlet pipe, a secondary air outlet pipe, a primary air inlet pipe and a primary air outlet pipe, the primary air outlet pipe is fixedly installed on the upper end of the outer shell, and the primary air inlet pipe is fixedly installed on the lower end of the outer shell, the primary air inlet pipe, the tube side and the primary air outlet pipe are connected in sequence, the secondary air inlet pipe is fixedly installed on the upper end of the outer shell, and the secondary air outlet pipe is fixedly installed on the lower end of the outer shell, the secondary air inlet pipe, the shell side and the secondary air outlet pipe are connected in sequence, the spray system is located in the shell side at the upper part of the heat exchange core, and the spray water of the spray system flows into the water collecting tray through the shell side.

[0014] The utility model has the following beneficial effects:

[0015] The spray water of the utility model can be recycled, and the indoor air conditioning condensed water can be used as a supplementary water source to save water resources. The water collection tray not only reduces the overall volume, but also increases the water level, which is convenient for the circulating water pump to extract the water, prolongs the water replenishment time, and is more convenient to use;

[0016] The water flow of the utility model forms a wall on the surface of each pipe, and the water flow direction is consistent with the direction of the pipe axis, which can reduce the possibility of forming dry spots and scaling, and has a good heat exchange effect;

[0017] The utility model avoids vibration and the noise generated by vibration;

[0018] The spray water of the utility model can be recycled, and the indoor air-conditioning condensed water can be used as a supplementary water source, thus saving water resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a vertical indirect evaporative cooler;

[0020] Figure 2 It is a schematic diagram of a vertical indirect evaporative cooler;

[0021] Figure 3 It is a front view of a vertical indirect evaporative cooler.

[0022] In the figure, 1-heat exchange core, 2-circulating water pump, 3-spraying system, 4-water collecting tray, 5-secondary air inlet pipe, 6-secondary air outlet pipe, 7-primary air inlet pipe, 8-primary air outlet pipe, 9-outer shell, 15-first inlet and outlet pipe, 16-second inlet and outlet pipe, 17-third inlet and outlet pipe, 18-fourth inlet and outlet pipe. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is described below by specific embodiments shown in the accompanying drawings. However, it should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0024] Specific implementation method 1: Combination Figure 1 The present embodiment is described. A vertical indirect evaporative cooler of the present embodiment comprises a heat exchange core 1, a circulating water pump 2, a spray system 3 and a water collecting pan 4. The spray system 3 is arranged on the heat exchange core 1, and the water collecting pan 4 is arranged below the heat exchange core 1. The water collecting pan 4 is connected to one end of a conduit through the circulating water pump 2, and the other end of the conduit is connected to the spray system 3. The spray system 3 adopts a nozzle or a nozzle with holes. The vertical cross-section of the upper inner cavity of the water collecting pan 4 is trapezoidal, and the water collecting pan 4 is connected to the circulating water pump 2; the trapezoidal water collecting pan 4 is convenient for the collection of spray water and the pumping work of the circulating water pump; the spray device 3 is arranged above the heat exchange core (heat exchange core 1), and the spray water collecting device (water collecting pan 4) is arranged below the heat exchange core;

[0025] The upper inner cavity of the water collecting pan 4 is wide at the top and narrow at the bottom, and the lower part of the water collecting pan 4 has an inner cavity with a square cross section. The lower inner cavity of the water collecting pan 4 is connected to the circulating water pump 2; the water collecting pan 4 not only reduces the overall volume, but also increases the water level, which is convenient for the circulating water pump to extract, prolongs the water replenishment time, and is more convenient; the spray water can be recycled, and the indoor air conditioning condensate water can be used as a supplementary water source when the humidity is high, saving water resources;

[0026] The heat exchange core 1 includes a vertical heat exchange tube group, which includes a plurality of vertical pipes arranged in an array. The pipes can be round pipes, elliptical pipes or twisted pipes, among which twisted pipes are preferably used. The heat exchange core 1, which is the core component of the indirect evaporative cooler, has a vertical arrangement of heat exchange units, a high heat transfer coefficient and a small footprint. The water flows on the surface of the pipe to form a wall, and the direction of the water flow is consistent with the direction of the pipe axis, which can reduce the possibility of forming dry spots and scaling. The pipes are smooth round pipes, twisted pipes, elliptical pipes, etc., among which, when the pipes are elliptical pipes or twisted pipes, adjacent pipes can support each other, avoiding vibration between pipes and noise generated by vibration.

[0027] It also includes an outer shell 9, the heat exchange core 1 is fixedly installed in the square or cylindrical outer shell 9, the pipe inside the heat exchange core 1 is the tube side, the outside of the heat exchange core 1 pipe and the outer shell 9 are the shell side, and the lower end of the outer shell 9 is fixedly connected with a water collecting pan 4; the primary air does not directly contact the indoor exhaust air, that is, the secondary air, to avoid being polluted by toxic and harmful gases;

[0028] The tube side and the shell side are both provided with inlet and outlet pipes, and the spray water of the spray system 3 flows into the water collecting pan 4 through the tube side;

[0029] The inlet and outlet pipelines include a first inlet and outlet pipeline 15, a second inlet and outlet pipeline 16, a third inlet and outlet pipeline 17 and a fourth inlet and outlet pipeline 18. The upper and lower sides of the outer shell 9 are respectively fixedly installed with end panels, and the two ends of the pipeline are respectively fixedly connected to the upper and lower end panels of the outer shell 9, so that the shell side and the tube side are not connected. Through holes are provided at the corresponding positions of the upper and lower end panels of the outer shell 9 and the pipeline. The first inlet and outlet pipeline 15 is fixedly installed on the upper end of the outer shell 9, and the second inlet and outlet pipeline 16 is fixedly installed on the side of the lower end of the outer shell 9. The first inlet and outlet pipeline 15 and the second inlet and outlet pipeline 16 are located outside the two end panels. The first inlet and outlet pipeline 15, the tube side, and the second inlet and outlet pipeline 16 are connected in sequence. The outer shell The third inlet and outlet pipes 17 and the fourth inlet and outlet pipes 18 are fixedly installed on the left and right sides of the heat exchange core 9, respectively. The third inlet and outlet pipes 17 and the fourth inlet and outlet pipes 18 are located between the two end panels. The third inlet and outlet pipes 17, the shell side, and the fourth inlet and outlet pipes 18 are connected in sequence. The spray system 3 is fixedly installed above the heat exchange core 1. The spray water of the spray system 3 flows into the water collecting tray 4 through the through holes on the upper side, the tube side, and the through holes on the lower side in sequence; the third inlet and outlet pipes 17 and the fourth inlet and outlet pipes 18 are staggered in design, which is reasonable in design, small in size and high in efficiency; multiple heat exchange cores can be arranged in series or in parallel between the upper and lower end panels for operation, realizing modular layout and improving the applicable working conditions of the equipment;

[0030] The first inlet and outlet pipe 15 is used as the secondary air inlet header, the second inlet and outlet pipe 16 is used as the secondary air outlet header, the third inlet and outlet pipe 17 is used as the primary air inlet header, and the fourth inlet and outlet pipe 18 is used as the primary air outlet header. Secondary air (i.e., indoor exhaust air) enters the heat exchange core 1 from the first inlet and outlet pipe 15. At the same time,

[0031] The circulating water pump 2 is used to drive the cooling water in the water collecting tray 4 at the bottom of the vertical indirect evaporative cooler into the spraying system 3 located above the heat exchange core 1. Through the action of the spraying system 3, the spraying water is evenly sprayed on the inner surface (tube side) of the heat exchange core 1. The secondary air inside the heat exchange core 1 flows downward in the same direction as the spraying water. With the help of the wind, the spraying water can be more evenly distributed on the surface of the heat exchange core 1. The primary air (i.e., outdoor fresh air) enters the heat exchange core 1 through the third inlet and outlet pipes 17, flows from bottom to top, exchanges energy with the spraying water of the heat exchange core 1, and is finally sent to the room or other air treatment equipment through the fourth inlet and outlet pipes 18.

[0032] Summer working conditions: The temperature of primary air (i.e. outdoor fresh air) is higher than that of secondary air (i.e. indoor exhaust air). After the spray water exchanges heat and mass with the secondary air, the temperature is reduced. The limit temperature of the reduction is the wet bulb temperature of the secondary air. The spray water after cooling exchanges heat with the primary air through the heat exchange unit (heat exchange core 1), thereby reducing the temperature of the primary air without causing a change in the moisture content of the primary air, that is, achieving isohumidity cooling. The cooled primary air is sent indoors or to other air handling equipment, which can reduce the air conditioning load of the building.

[0033] Winter working conditions: The temperature of primary air (i.e. outdoor fresh air) is lower than that of secondary air (i.e. indoor exhaust air). After the spray water exchanges heat and mass with the secondary air, its temperature rises. The heated spray water exchanges heat with the primary air through the heat exchange unit to increase the temperature of the primary air without causing changes in the moisture content of the primary air, thus achieving isohumid heating. The heated primary air is sent indoors or to other air treatment equipment to reduce the air conditioning load of the building.

[0034] Specific implementation method 2: Combination Figure 2 The present embodiment is described. A vertical indirect evaporative cooler of the present embodiment comprises a heat exchange core 1, a circulating water pump 2, a spray system 3 and a water collecting pan 4. The spray system 3 is arranged on the heat exchange core 1, and the water collecting pan 4 is arranged below the heat exchange core 1. The water collecting pan 4 is connected to one end of a conduit through the circulating water pump 2, and the other end of the conduit is connected to the spray system 3. The spray system 3 adopts a nozzle or a nozzle with holes. The vertical cross-section of the upper inner cavity of the water collecting pan 4 is a trapezoid, and the water collecting pan 4 is connected to the circulating water pump 2.

[0035] The upper inner cavity of the water collecting tray 4 is wide at the top and narrow at the bottom. The lower part of the water collecting tray 4 has an inner cavity with a square cross section. The lower inner cavity of the water collecting tray 4 is connected to the circulating water pump 2, which is convenient for collecting the spray water and pumping the circulating water pump.

[0036] The heat exchange core 1 includes a vertical heat exchange tube group, which includes a plurality of vertical pipes arranged in an array. The pipes can be round pipes, elliptical pipes or twisted pipes, among which twisted pipes are preferably used. The heat exchange core 1, which is the core component of the indirect evaporative cooler, has a heat exchange unit arranged vertically.

[0037] It also includes an outer shell 9, the heat exchange core 1 is fixedly installed in the square or cylindrical outer shell 9, the pipe inside the heat exchange core 1 is the tube side, the pipe outside the heat exchange core 1 and the outer shell 9 are the shell side, and the lower end of the outer shell 9 is fixedly connected with a water collecting pan 4;

[0038] The tube side and the shell side are both provided with inlet and outlet pipes, and the spray water of the spray system 3 flows into the water collecting pan 4 through the tube side;

[0039] The inlet and outlet pipelines include a first inlet and outlet pipeline 15, a second inlet and outlet pipeline 16, a third inlet and outlet pipeline 17 and a fourth inlet and outlet pipeline 18. The upper and lower sides of the outer shell 9 are respectively fixedly installed with end panels. The two ends of the pipeline are respectively fixedly connected to the upper and lower end panels of the outer shell 9, so that the shell side and the tube side are not connected. Through holes are provided at the corresponding positions of the upper and lower end panels of the outer shell 9 and the pipeline. The first inlet and outlet pipeline 15 is fixedly installed at the upper end of the outer shell 9, and the second inlet and outlet pipeline 16 is fixedly installed on the lower end side of the outer shell 9. The first inlet and outlet pipeline 15 and the second inlet and outlet pipeline 16 are located outside the two end panels. The first inlet and outlet pipeline 15, the tube side, and the second inlet and outlet pipeline 16 are connected in sequence. The third inlet and outlet pipeline 17 and the fourth inlet and outlet pipeline 18 are respectively fixedly installed on the left and right sides of the outer shell 9. The third inlet and outlet pipeline 17 and the fourth inlet and outlet pipeline 18 are located between the two end panels. The third inlet and outlet pipeline 17, the shell side, and the fourth inlet and outlet pipeline 18 are connected in sequence. The spray system 3 is fixedly installed above the heat exchange core 1, and the spray water of the spray system 3 flows into the water collecting tray 4 through the through holes on the upper side, the tube side, and the through holes on the lower side in sequence;

[0040] The first inlet and outlet pipe 15 is used as a secondary air outlet manifold, the second inlet and outlet pipe 16 is used as a secondary air inlet manifold, the third inlet and outlet pipe 17 is used as a primary air inlet manifold, and the fourth inlet and outlet pipe 18 is used as a primary air outlet manifold. The secondary air (i.e., indoor exhaust air) enters the heat exchange core 1 from the second inlet and outlet pipe 16 of the indirect evaporative cooler. At the same time, the circulating water pump 2 is used to drive the cooling water in the spray water collection tray 4 located at the bottom of the indirect evaporative cooler into the spray system 3 located above the heat exchange core 1. Through the action of the spray system 3, the spray water is evenly sprayed on the inner surface of the heat exchange unit. The secondary air inside the heat exchange unit flows from bottom to top and exchanges heat with the spray water in opposite directions. The spray water film is disturbed by the flow of the secondary air, and the boundary layer is destroyed, which can enhance the heat and mass exchange effect. The primary air (i.e., outdoor fresh air) enters the heat exchange core 1 through the third inlet and outlet pipe 17, flows from bottom to top, exchanges energy with the spray water located in the heat exchange unit, and is finally sent to the room or other air treatment equipment through the fourth inlet and outlet pipe 18;

[0041] Summer working conditions: The temperature of primary air (i.e. outdoor fresh air) is higher than that of secondary air (i.e. indoor exhaust air). After the spray water exchanges heat and mass with the secondary air, the temperature is reduced. The limit temperature of the reduction is the wet-bulb temperature of the secondary air. The spray water after cooling exchanges heat with the primary air through the heat exchange unit to reduce the temperature of the primary air without causing a change in the moisture content of the primary air, that is, isohumidification cooling is achieved; the cooled primary air is sent indoors or to other air handling equipment, which can reduce the air conditioning load of the building;

[0042] Winter working conditions: The temperature of primary air (i.e. outdoor fresh air) is lower than that of secondary air (i.e. indoor exhaust air). After the spray water exchanges heat and mass with the secondary air, the temperature rises. The heated spray water exchanges heat with the primary air through the heat exchange unit to increase the temperature of the primary air without causing a change in the moisture content of the primary air, that is, achieving isohumid heating. The heated primary air is sent indoors or to other air handling equipment, which can reduce the air conditioning load of the building.

[0043] The difference from the specific implementation method one is that the secondary air flows from bottom to top outside the heat exchange unit, and the spray water flows from top to bottom outside the heat exchange unit. The two flow directions are opposite, which can effectively enhance the heat and mass exchange effect between the two. This structure realizes two usage methods, has high adaptability, and can be selected according to needs.

[0044] Specific implementation method three: Combination Figure 3The present embodiment is described. A vertical indirect evaporative cooler of the present embodiment comprises a heat exchange core 1, a circulating water pump 2, a spray system 3 and a water collecting pan 4. The heat exchange core 1 is provided with the spray system 3. The water collecting pan 4 is provided below the heat exchange core 1. The water collecting pan 4 is connected to one end of a vertical conduit through the circulating water pump 2. The other end of the conduit is connected to the spray system 3. The spray system 3 adopts a nozzle. The vertical cross-section of the upper inner cavity of the water collecting pan 4 is a trapezoid. The water collecting pan 4 is connected to the circulating water pump 2.

[0045] The upper inner cavity of the water collecting pan 4 is wide at the top and narrow at the bottom, and the lower part of the water collecting pan 4 has an inner cavity with a square cross section. The lower inner cavity of the water collecting pan 4 is connected to the circulating water pump 2;

[0046] The heat exchange core 1 includes a vertical heat exchange tube group, which includes a plurality of vertical pipes arranged in an array. The pipes can be round pipes, elliptical pipes or twisted pipes, among which twisted pipes are preferably used. The heat exchange core 1, which is the core component of the indirect evaporative cooler, has a heat exchange unit arranged vertically.

[0047] It also includes an outer shell 9, the heat exchange core 1 is fixedly installed in the square or cylindrical outer shell 9, the pipe inside the heat exchange core 1 is the tube side, the pipe outside the heat exchange core 1 and the outer shell 9 are the shell side, and the lower end of the outer shell 9 is fixedly connected with a water collecting pan 4;

[0048] The tube side and the shell side are both provided with inlet and outlet pipes, and the spray water of the spray system 3 flows into the water collecting tray 4 through the shell side;

[0049] The inlet and outlet pipes include a secondary air inlet pipe 5, a secondary air outlet pipe 6, a primary air inlet pipe 7 and a primary air outlet pipe 8. An upper end panel is fixedly installed on the upper side of the outer shell 9, and the upper end panel is fixedly connected to the upper end of the pipe, and through holes are processed at the corresponding positions of the upper end panel and the pipe. The upper end of the outer shell 9 is fixedly installed with a primary air outlet pipe 8, and the lower end side of the outer shell 9 is fixedly installed with a primary air inlet pipe 7. A lower end panel is fixedly arranged at the primary air inlet pipe 7, and the lower end of the pipe is fixedly connected to the lower end panel. The lower end of the pipe and the lower end panel are processed with through holes at the corresponding positions of the primary air inlet The pipeline 7, the lower through hole, the tube side, the upper through hole, and the primary air outlet pipeline 8 are connected in sequence. The secondary air inlet pipeline 5 is fixedly installed on the upper end side of the outer shell 9. The secondary air inlet pipeline 5 and the spray system 3 are located at the lower side of the upper end panel. The shell side and the tube side are not connected, and the primary air and the secondary air are not connected. The secondary air outlet pipeline 6 is fixedly installed on the lower end side of the outer shell 9. The secondary air inlet pipeline 5, the shell side, and the secondary air outlet pipeline 6 are connected in sequence. The spray system 3 is located in the shell side of the upper part of the heat exchange core 1. The spray water of the spray system 3 flows into the water collecting pan 4 through the shell side; the water collecting pan 4 is a spray water collecting pan;

[0050] The secondary air inlet pipe 5, the secondary air outlet pipe 6, the primary air inlet pipe 7 and the primary air outlet pipe 8 may adopt a header, which is composed of a number of small pipes; the secondary air (i.e., indoor exhaust air) enters the heat exchange core 1 from the secondary air inlet header (secondary air inlet pipe 5) of the indirect evaporative cooler, and at the same time, the circulating water pump 2 is used to drive the cooling water in the spray water collection tray 4 located at the bottom of the indirect evaporative cooler into the spray system 3 located at the top of the heat exchange core 1, and the spray water is sprayed evenly on the outer surface of the heat exchange unit through the action of the spray system 3, and the secondary air outside the heat exchange unit flows downward in the same direction as the spray water. With the help of the wind, the spray water can be more evenly distributed on the outer surface of the heat exchange unit; the primary air (i.e., outdoor fresh air) enters the heat exchange core 1 through the primary air inlet header (primary air inlet pipe 7), flows from bottom to top, exchanges energy with the spray water located outside the heat exchange unit, and is finally sent to the room or other air treatment equipment through the primary air outlet header (primary air outlet pipe 8);

[0051] Summer working conditions: The temperature of primary air (i.e. outdoor fresh air) is higher than that of secondary air (i.e. indoor exhaust air). After the spray water exchanges heat and mass with the secondary air, the temperature is reduced. The limit temperature of the reduction is the wet-bulb temperature of the secondary air. The spray water after cooling exchanges heat with the primary air through the heat exchange unit to reduce the temperature of the primary air without causing a change in the moisture content of the primary air, that is, isohumidification cooling is achieved; the cooled primary air is sent indoors or to other air handling equipment, which can reduce the air conditioning load of the building;

[0052] Winter working conditions: The temperature of primary air (i.e. outdoor fresh air) is lower than that of secondary air (i.e. indoor exhaust air). After the spray water exchanges heat and mass with the secondary air, the temperature rises. The heated spray water exchanges heat with the primary air through the heat exchange unit to increase the temperature of the primary air without causing a change in the moisture content of the primary air, that is, isohumidification heating is achieved. The heated primary air is sent indoors or to other air handling equipment, which can reduce the air conditioning load of the building;

[0053] The difference from the first and second embodiments is that the primary air flows from bottom to top inside the heat exchange unit, the secondary air and the spray water flow from top to bottom outside the heat exchange unit in the same direction, and the primary air and the spray water flow in opposite directions.

[0054] In the above embodiments, as long as there are no contradictory technical solutions, they can be arranged and combined. Those skilled in the art can exhaust all possibilities based on the mathematical knowledge of arrangement and combination. Therefore, the present utility model will no longer describe the technical solutions after arrangement and combination one by one, but it should be understood that the technical solutions after arrangement and combination have been disclosed by the present utility model.

[0055] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A vertical indirect evaporative cooler, characterized in that: The invention comprises a heat exchange core (1), a circulating water pump (2), a spray system (3) and a water collecting pan (4); the spray system (3) is arranged on the heat exchange core (1); the water collecting pan (4) is arranged below the heat exchange core (1); the water collecting pan (4) is connected to the spray system (3) via the circulating water pump (2); the water collecting pan (4) has a trapezoidal cross section; and the water collecting pan (4) is connected to the circulating water pump (2).

2. A vertical indirect evaporative cooler according to claim 1, characterized in that: The upper inner cavity of the water collecting tray (4) is wide at the top and narrow at the bottom, and the lower portion of the water collecting tray (4) has an inner cavity with a square cross section. The lower inner cavity of the water collecting tray (4) is connected to the circulating water pump (2).

3. A vertical indirect evaporative cooler according to claim 1, characterized in that: The heat exchange core (1) is a round tube, an elliptical tube or a twisted tube.

4. A vertical indirect evaporative cooler according to claim 3, characterized in that: It also comprises an outer shell (9), a heat exchange core (1) is installed in the outer shell (9), the inside of the heat exchange core (1) is a tube side, and the outside of the heat exchange core (1) and the inside of the outer shell (9) are a shell side.

5. A vertical indirect evaporative cooler according to claim 4, characterized in that: Both the tube side and the shell side are provided with inlet and outlet pipes, and the spray water of the spray system (3) flows into the water collecting tray (4) through the tube side or the shell side.

6. A vertical indirect evaporative cooler according to claim 5, characterized in that: The inlet and outlet pipes include a first inlet and outlet pipe (15), a second inlet and outlet pipe (16), a third inlet and outlet pipe (17) and a fourth inlet and outlet pipe (18). The first inlet and outlet pipe (15) is fixedly installed at the upper end of the outer shell (9), and the second inlet and outlet pipe (16) is fixedly installed at the lower end of the outer shell (9). The first inlet and outlet pipe (15), the tube side and the second inlet and outlet pipe (16) are connected in sequence. The third inlet and outlet pipe (17) and the fourth inlet and outlet pipe (18) are fixedly installed on the left and right sides of the outer shell (9), respectively. The third inlet and outlet pipe (17), the shell side and the fourth inlet and outlet pipe (18) are connected in sequence. The spray system (3) is fixedly installed above the heat exchange core (1), and the spray water of the spray system (3) flows into the water collecting tray (4) through the tube side.

7. A vertical indirect evaporative cooler according to claim 5, characterized in that: The inlet and outlet pipes include a secondary air inlet pipe (5), a secondary air outlet pipe (6), a primary air inlet pipe (7) and a primary air outlet pipe (8); the primary air outlet pipe (8) is fixedly mounted on the upper end of the outer shell (9); the primary air inlet pipe (7) is fixedly mounted on the lower end of the outer shell (9); the primary air inlet pipe (7), the tube side and the primary air outlet pipe (8) are connected in sequence; the secondary air inlet pipe (5) is fixedly mounted on the upper end of the outer shell (9); the secondary air outlet pipe (6) is fixedly mounted on the lower end of the outer shell (9); the secondary air inlet pipe (5), the shell side and the secondary air outlet pipe (6) are connected in sequence; the spray system (3) is located in the shell side at the upper part of the heat exchange core (1); and the spray water of the spray system (3) flows into the water collecting tray (4) through the shell side.

Images