Evaporative cooling air conditioning unit system

Abstract

The utility model relates to an evaporative cooling air conditioning unit system which comprises an outer circulation air duct, an inner circulation air duct, an exhaust duct, a cleaning air duct, an air exchange chamber, a packing type evaporative cooler and a controller. One end of the outer circulating air duct is communicated with the air exchange chamber through an electric control air valve; one end of the internal circulation air duct is communicated with the air exchange chamber; one end of the cleaning air duct is communicated with the internal circulation air duct and is communicated with the air exchange chamber through the internal circulation air duct; one end of the exhaust duct is communicated with the air exchange chamber; an air feeder is arranged in the exhaust duct; and the packing type evaporative cooler is arranged in the exhaust duct. When the filler type evaporative cooler needs to be cleaned, the air feeder can be controlled to rotate reversely, so that wind power sequentially passes through the exhaust duct, the air exchange chamber and the cleaning air duct, the filler type evaporative cooler is reversely blown, particles blocked in the filler type evaporative cooler are discharged into the outdoor environment through the cleaning air duct along with the wind power, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the field of evaporative cooling equipment technology, specifically to an evaporative cooling air conditioning unit system. Background Technology

[0002] Evaporative cooling technology is a technique that utilizes the heat absorbed during the evaporation of water to achieve cooling. It is typically used in arid regions, where cold water from a natural cold source is sprayed onto the packing material. Air flowing through the heat exchanger can directly contact the water film on the surface of the packing material for heat and moisture exchange, ensuring uniform contact between water and air. The water absorbs heat from the air and evaporates, while the cooled air is then introduced into the room, achieving the purpose of cooling.

[0003] Packed evaporative coolers are a commonly used type of equipment in evaporative cooling technology. They mainly consist of a packing layer, a spray device, and a water receiving device. The packing layer is usually made of materials such as plant fibers, non-woven fabric, and PVC, and adopts a corrugated, cross-overlapping structure to form multiple filter holes, increasing the contact area between air and water and improving evaporative cooling efficiency.

[0004] However, the packing material in existing evaporative cooling air conditioning equipment is exposed to harsh outdoor environments for a long time. As a result, many flying insects, willow catkins and other debris accumulate on the surface of the packing material, which seriously clogs the filter pores of the packing material. This leads to unsatisfactory evaporative cooling effect and requires managers to clean the packing material frequently, resulting in high maintenance costs and hindering the further promotion of evaporative cooling technology.

[0005] Therefore, it is necessary to study an evaporative cooling air conditioning unit system. Utility Model Content

[0006] Therefore, the purpose of this utility model is to provide an evaporative cooling air conditioning unit system that can effectively solve the problem that the packed evaporative cooler is easily clogged by debris, resulting in high maintenance costs in the later stage.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] An evaporative cooling air conditioning unit system includes an external circulation air duct, an internal circulation air duct, an exhaust air duct, a clean air duct, an air exchange chamber, a packed evaporative cooler, and a controller;

[0009] One end of the external circulation duct is connected to the air exchange chamber via an electrically controlled air valve, and the other end is connected to the outside.

[0010] One end of the internal circulation duct is connected to the air exchange chamber, and the other end is connected to the interior.

[0011] One end of the clean air duct is connected to the internal circulation air duct and is connected to the air exchange chamber through the internal circulation air duct; an electrically controlled three-way valve is installed at the connection point of the clean air duct, the internal circulation air duct and the air exchange chamber; the other end of the clean air duct is connected to the outside.

[0012] One end of the exhaust duct is connected to the air exchange chamber, and the other end is connected to the interior; a blower is installed in the exhaust duct;

[0013] The packed-fill evaporative cooler is installed in the exhaust duct and located between the air exchange chamber and the blower;

[0014] The controller is connected to the electrically controlled air valve, the electrically controlled three-way valve, and the blower control, respectively.

[0015] Furthermore, an external circulation fan is installed in the external circulation duct, and an internal circulation fan is installed in the internal circulation duct. Both the external circulation fan and the internal circulation fan are connected to the controller.

[0016] Furthermore, the air exchange chamber is provided with a cleaning port that connects to the outside, and a cover plate is detachably connected to the cleaning port.

[0017] Furthermore, the connection point between the internal circulation duct and the air exchange chamber is located at the bottom of the air exchange chamber, the connection point between the external circulation duct and the air exchange chamber is located at the top of the air exchange chamber, and the connection point between the exhaust duct and the air exchange chamber is located on the side away from and directly opposite the cleaning port.

[0018] Furthermore, the air exchange chamber is equipped with an atomizing spray device.

[0019] Furthermore, the bottom of the air exchange chamber is provided with a sloped surface that is inclined toward the connection point between the internal circulation duct and the air exchange chamber.

[0020] Furthermore, the connection points of the external circulation duct with the outside, the internal circulation duct with the inside, and the exhaust duct with the inside are all equipped with filtration devices.

[0021] Furthermore, the filtering device includes a filter screen and an intercepting grid, with the intercepting grid located outside the filter screen.

[0022] The beneficial effects of the above technical solution are:

[0023] This invention features an electrically controlled air valve at the connection point between the external circulation duct and the air exchange chamber, and an electrically controlled three-way valve at the connection point between the cleaning duct, the internal circulation duct, and the air exchange chamber. The controller can switch the connection status between the ducts by switching the connection status of the electrically controlled air valve and the electrically controlled three-way valve. Under normal operating conditions, the blower rotates forward, and the airflow is delivered to the room through the exhaust duct via the external or internal circulation duct, and then passes through the packed evaporative cooler in a forward direction for cooling. When cleaning of the packed evaporative cooler is required, the blower can be reversed, so that the airflow passes through the exhaust duct, the air exchange chamber, and the cleaning duct in sequence, and back-blowing the packed evaporative cooler. This removes the particulate matter clogging the packed evaporative cooler through the cleaning duct to the outdoor environment. During this process, no manual replacement or cleaning of the packing is required, resulting in lower maintenance costs for the evaporative cooler and facilitating the widespread application of evaporative cooling air conditioning units. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the internal circulation working mode of this utility model;

[0025] Figure 2 This is a schematic diagram of the external circulation and ventilation operation mode of this utility model;

[0026] Figure 3 This is a schematic diagram of the cleaning working mode of this utility model.

[0027] Attached reference numerals: 1 is external circulation air duct, 2 is internal circulation air duct, 3 is exhaust air duct, 4 is clean air duct, 5 is air exchange chamber, 6 is packed evaporative cooler, 7 is electrically controlled air valve, 8 is electrically controlled three-way valve, 9 is blower, 10 is external circulation fan, 11 is internal circulation fan, 12 is atomizing spray device, 13 is filter screen, 14 is interception grille, 501 is clean port, and 502 is cover plate. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0029] This embodiment aims to provide an evaporative cooling air conditioning unit system, which is mainly used in evaporative cooling air conditioning unit systems that employ a packed evaporative cooler 6, addressing the problem that the packed evaporative cooler 6 is easily clogged by debris, resulting in high maintenance costs in the later stages.

[0030] An evaporative cooling air conditioning unit system, such as Figure 1The system includes an external circulation duct 1, an internal circulation duct 2, an exhaust duct 3, a clean air duct 4, an air exchange chamber 5, a packed-filler evaporative cooler 6, and a controller. One end of the external circulation duct 1 is connected to the air exchange chamber 5 via an electrically controlled air valve 7, and the other end is connected to the outside, mainly used to obtain air from the outside. The electrically controlled air valve 7 is used to control the opening and closing of the connection between the external circulation duct 1 and the air exchange chamber 5. One end of the internal circulation duct 2 is connected to the air exchange chamber 5, and the other end is connected to the interior, mainly used to obtain air from the interior. One end of the clean air duct 4 is connected to the internal circulation duct 2, and it is connected to the air exchange chamber 5 through the internal circulation duct 2. An electrically controlled three-way valve 8 is installed at the connection point of the clean air duct 4, the internal circulation duct 2, and the air exchange chamber 5. The electrically controlled three-way valve 8 can control the connection relationship between the clean air duct 4, the internal circulation duct 2, and the air exchange chamber 5. The structure and specific working principle of the electrically controlled air valve 7 and the electrically controlled three-way valve 8 are existing technologies and will not be described in detail here. The other end of the cleaning duct 4 is connected to the outside, mainly used to exhaust air containing impurity particles to the outdoor environment.

[0031] One end of the exhaust duct 3 is connected to the air exchange chamber 5, and the other end is connected to the room. It is mainly used to output air to the indoor environment. A blower 9 is installed in the exhaust duct 3. It is mainly used to provide wind power to each duct. When the blower 9 rotates forward, it can provide wind power towards the room.

[0032] The packed evaporative cooler 6 is installed in the exhaust duct 3 and located between the air exchange chamber 5 and the blower 9. It is mainly used to cool the air passing through the exhaust duct 3. The structure and specific working principle of the blower 9 and the packed evaporative cooler 6 are existing technologies and will not be described in detail here.

[0033] The controller is connected to the electrically controlled air valve 7, the electrically controlled three-way valve 8 and the blower 9 respectively, and is used to control the connection status of the electrically controlled air valve 7 and the electrically controlled three-way valve 8 and the direction of the blower 9. The structure and working principle of the controller, as well as the power supply system of each electrical appliance, adopt existing technology and will not be described in detail here.

[0034] Furthermore, an external circulation fan 10 is provided in the external circulation duct 1 to provide additional airflow power to the air in the external circulation duct 1 towards the air exchange chamber 5; an internal circulation fan 11 is provided in the internal circulation duct 2 to provide additional airflow power to the air in the internal circulation duct 2 towards the air exchange chamber 5; both the external circulation fan 10 and the internal circulation fan 11 are connected to a controller to control the opening and closing of the external circulation fan 10 and the internal circulation fan 11.

[0035] This embodiment includes the following operating modes:

[0036] (1) Inner loop mode, such as Figure 1When the electrically controlled air valve 7 is closed, the electrically controlled three-way valve 8 connects only the internal circulation pipe and the air exchange chamber 5, the blower 9 rotates forward, and the internal circulation fan 11 is turned on (in other embodiments, the internal circulation fan 11 may not be provided). At this time, the airflow passes through the internal circulation duct 2, the air exchange chamber 5 and the exhaust duct 3 in sequence from the room. During this process, the airflow is cooled by the packed evaporative cooler 6 and finally discharged into the room to cool the room.

[0037] (2) External circulation mode, such as Figure 2 The electrically controlled air valve 7 is opened and connected to the external circulation air duct 1 and the air exchange chamber 5. The electrically controlled three-way valve 8 is completely closed, the blower 9 rotates forward, and the external circulation fan 10 is turned on (in other embodiments, the external circulation fan 10 may not be provided). At this time, the air force passes from the outside through the external circulation air duct 1, the air exchange chamber 5 and the exhaust air duct 3 in sequence. During this process, the air passes through the packing evaporative cooler 6 in the forward direction for cooling, and is finally discharged into the room to cool the room.

[0038] (3) Ventilation mode, such as Figure 2 In the external circulation mode, the electronically controlled three-way valve 8 connects only the internal circulation duct 2 and the clean air duct 4. The internal circulation fan 11 is turned on, so that the indoor air passes through the internal circulation duct 2 and the clean air duct 4 in sequence and is discharged to the outdoor environment.

[0039] (4) Cleaning mode, such as Figure 3 When the blower 9 reverses, the electrically controlled air valve 7 closes (or the electrically controlled air valve 7 opens but the external circulation fan 10 needs to be turned on), and the electrically controlled three-way valve 8 connects only the cleaning duct 4 and the air exchange chamber 5. At this time, the airflow passes through the exhaust duct 3, the air exchange chamber 5 and the exhaust duct 3 in sequence from the room. During this time, it passes in reverse through the packed evaporative cooler 6, forming a back-blowing cleaning of the packed evaporative cooler 6. The particles that are blocked in it are carried into the air exchange chamber 5 by the airflow and finally discharged to the outside through the cleaning duct 4 with the airflow.

[0040] Furthermore, the air exchange chamber 5 is provided with a cleaning port 501 that connects to the outside. A cover plate 502 is detachably connected to the cleaning port 501 to facilitate regular cleaning and maintenance of the air exchange chamber 5 by personnel.

[0041] Furthermore, the connection point between the internal circulation duct 2 and the air exchange chamber 5 is located at the bottom of the air exchange chamber 5, so that the air carrying particulate matter can enter the cleaning duct 4 downwards; the connection point between the external circulation duct 1 and the air exchange chamber 5 is located at the top of the air exchange chamber 5; the connection point between the exhaust duct 3 and the air exchange chamber 5 is located on the side away from and directly opposite the cleaning port 501, so that in the cleaning mode, the particulate matter carried by the airflow can more easily fall onto the cover plate 502 of the cleaning port 501 if it does not enter the cleaning channel smoothly, so as to facilitate subsequent cleaning.

[0042] Furthermore, an atomizing spray device 12 is installed in the air exchange chamber 5. In the cleaning mode, the atomizing spray device 12 is turned on to humidify the airflow, so that the particulate matter carried in the airflow will be deposited upon contact with water. The water accumulated in the air exchange chamber 5 will then flow into the exhaust duct and be discharged outdoors, reducing particulate pollution to the outdoor environment.

[0043] Furthermore, the bottom of the air exchange chamber 5 is provided with a sloped surface that is inclined toward the connection point between the internal circulation duct 2 and the air exchange chamber 5, so that water can be collected and flow into the clean air duct 4.

[0044] Furthermore, filtration devices are installed at the connection points of the external circulation duct 1 with the outside, the internal circulation duct 2 with the inside, and the exhaust duct 3 with the inside. The filtration devices include a filter screen 13 and an intercepting grille 14. The intercepting grille 14 is located outside the filter screen 13. The intercepting grille 14 is used to intercept large debris, while the filter screen 13 is used to filter particulate matter in the indoor and outdoor environments, thereby improving the cleanliness of the air entering each duct and reducing the clogging rate of the packed evaporative cooler 6.

Claims

1. An evaporative cooling air conditioning unit system, characterized in that: It includes an external circulation air duct (1), an internal circulation air duct (2), an exhaust air duct (3), a clean air duct (4), an air exchange chamber (5), a packed evaporative cooler (6), and a controller; One end of the external circulation duct (1) is connected to the air exchange chamber (5) through an electrically controlled air valve (7), and the other end is connected to the outside. One end of the internal circulation duct (2) is connected to the air exchange chamber (5), and the other end is connected to the room. One end of the clean air duct (4) is connected to the internal circulation air duct (2) and is connected to the air exchange chamber (5) through the internal circulation air duct (2); an electrically controlled three-way valve (8) is provided at the connection point of the clean air duct (4), the internal circulation air duct (2) and the air exchange chamber (5); the other end of the clean air duct (4) is connected to the outside. One end of the exhaust duct (3) is connected to the air exchange chamber (5), and the other end is connected to the room; a blower (9) is installed in the exhaust duct (3). The packed evaporative cooler (6) is installed in the exhaust duct (3) and located between the air exchange chamber (5) and the blower (9); The controller is connected to the electrically controlled air valve (7), the electrically controlled three-way valve (8), and the blower (9) respectively.

2. The evaporative cooling air conditioning unit system according to claim 1, characterized in that: An external circulation fan (10) is provided in the external circulation duct (1), and an internal circulation fan (11) is provided in the internal circulation duct (2). Both the external circulation fan (10) and the internal circulation fan (11) are connected to the controller.

3. The evaporative cooling air conditioning unit system according to claim 1, characterized in that: The air exchange chamber (5) has a cleaning port (501) that connects to the outside of the room, and a cover plate (502) is detachably connected to the cleaning port (501).

4. The evaporative cooling air conditioning unit system according to claim 3, characterized in that: The connection point between the internal circulation duct (2) and the air exchange chamber (5) is located at the bottom of the air exchange chamber (5), the connection point between the external circulation duct (1) and the air exchange chamber (5) is located at the top of the air exchange chamber (5), and the connection point between the exhaust duct (3) and the air exchange chamber (5) is located on the side away from and directly opposite the cleaning port (501).

5. The evaporative cooling air conditioning unit system according to claim 4, characterized in that: The air exchange chamber (5) is equipped with an atomizing spray device (12).

6. The evaporative cooling air conditioning unit system according to claim 5, characterized in that: The bottom of the air exchange chamber (5) is provided with a slope that is inclined toward the connection point between the internal circulation duct (2) and the air exchange chamber (5).

7. An evaporative cooling air conditioning unit system according to any one of claims 1-6, characterized in that: The connection points of the external circulation duct (1) with the outside, the connection points of the internal circulation duct (2) with the inside, and the connection points of the exhaust duct (3) with the inside are all equipped with filtration devices.

8. The evaporative cooling air conditioning unit system according to claim 7, characterized in that: The filtration device includes a filter screen (13) and an interception grille (14), with the interception grille (14) located outside the filter screen (13).

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