Evaporative air cooler

Abstract

The evaporative air cooler comprises a machine body, an air outlet is formed in the left side of the machine body, and mixed gas cooling devices are arranged on the front side, the rear side and the right side of the machine body respectively. The mixed gas cooling device comprises a gas mixing mechanism and a cooling mechanism; the gas mixing mechanism comprises at least one pair of electric heat conduction plates, each electric heat conduction plate is provided with a cold side and a hot side, the hot sides of each pair of electric heat conduction plates are opposite and form a spraying space, and a first spraying pipe matched with the spraying space is arranged on the machine body; the cooling mechanism comprises a heat exchange piece set and a second spraying pipe arranged above the heat exchange piece set. A water tank with an opening in the upper side is arranged in the machine body below the gas mixing mechanism and the cooling mechanism, a water pump is arranged in the water tank, and an outlet of the water pump is connected with the first spraying pipe and the second spraying pipe; dry cold air sent out by the air mixing mechanism is mixed with wet cold air normally sent out by the cooling mechanism, the air outlet humidity of the air cooler is reduced, and the situation that due to the fact that the air outlet humidity of the air cooler is too large, the surrounding sight is affected or operation safety of electrical equipment is affected is effectively avoided.

Description

Technical Field

[0001] The utility model relates to the field of industrial air coolers, in particular to an evaporative air cooler. Background Art

[0002] Industrial air coolers use the principle of water evaporation and heat absorption to cool the air flow. They are widely used in factory workshops, production lines and other locations. However, in actual use, it is found that the air outlet of existing industrial evaporative air coolers generally has high humidity. Long-term blowing can easily affect the safety of surrounding electrical equipment. Under certain temperature conditions, they will also blow out obvious white mist, affecting the surrounding vision. There is room for improvement. Utility Model Content

[0003] In view of the problems existing in the background technology, the purpose of the present invention is to provide an evaporative air cooler, which effectively solves the problems existing in the background technology.

[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0005] An evaporative air cooler comprises a body, an air outlet is provided on the left side of the body, a fan is provided inside the air outlet, and an air mixing cooling device is provided on the front, rear and right sides of the body respectively; the air mixing cooling device comprises an air mixing mechanism and a cooling mechanism;

[0006] The air mixing mechanism includes at least one pair of electric heat conducting plates, each of which has a cold side and a hot side, the hot sides of each pair of electric heat conducting plates facing each other and forming a spray space, the upper and lower sides of the spray space are open, and a first spray pipe cooperating with the spray space is provided on the body; an air intake space is provided on the cold side of the electric heat conducting plate, at least one air disturbing mechanism is provided in the air intake space along the forward direction of the air flow, the air disturbing mechanism includes two inclined grilles symmetrically arranged in the air intake space and an air guide box arranged between the two inclined grilles, the air guide box is open on one side facing the incoming air direction, an air outlet slot facing the inclined grille is provided on the air guide box, and a plurality of vertical cylinders are provided in the air outlet slot;

[0007] The cooling mechanism includes a heat exchange fin group and a second spray pipe arranged above the heat exchange fin group;

[0008] A water tank with an upper opening is provided in the body below the gas mixing mechanism and the cooling mechanism. A water pump is provided in the water tank, and an outlet of the water pump is connected to the first spray pipe and the second spray pipe.

[0009] Furthermore, the electrically conductive plate includes a hollow plate body and a plurality of thermoelectric semiconductor cooling sheets evenly distributed in the hollow plate body, and the heat absorbing side and the heat dissipating side of the thermoelectric semiconductor cooling sheets are respectively attached to the two inner walls of the hollow plate body.

[0010] Furthermore, a plurality of hemispherical protrusions are evenly distributed on one side of the hollow plate body facing the spraying space.

[0011] Furthermore, the hollow plate is made of stainless steel.

[0012] Furthermore, there are two water pumps, one of which is a submersible pump and is installed at the bottom inside the water tank, and the outlet of this water pump is connected to the first spray pipe; the other water pump is installed outside the water tank and the outlet of this water pump is connected to the second spray pipe, the inlet of this water pump is connected to a water pumping pipe, and a float plate is provided at the end of the water pumping pipe.

[0013] The utility model has the following beneficial technical effects:

[0014] The utility model adopts the mixing mechanism to send out dry cold air and mix it with the wet cold air normally sent out by the cooling mechanism, thereby reducing the humidity of the air discharged by the air cooler, and effectively avoiding the air discharged by the air cooler from having excessive humidity and affecting the surrounding vision or the safe operation of electrical equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a front view of an embodiment of the utility model;

[0016] Figure 2 This is a top view of the internal structure of the gas mixing mechanism in the embodiment of the present utility model;

[0017] Figure 3 Schematic diagram of the internal structure of the water tank in the embodiment of the present utility model. DETAILED DESCRIPTION

[0018] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0019] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inside", "outside", "front end", "rear end", "head", "tail", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0020] like Figure 1-3 As shown, an evaporative air cooler according to this embodiment includes a body 1, an air outlet 2 is provided on the left side of the body 1, a fan is provided inside the air outlet 2, and an air mixing cooling device is provided on the front, rear and right sides of the body 1 respectively; the air mixing cooling device includes an air mixing mechanism 3 and a cooling mechanism 4;

[0021] The gas mixing mechanism 3 includes two pairs of electric heat-conducting plates, which have a cold side and a hot side. Specifically, the electric heat-conducting plates include a hollow plate body 5 and a plurality of thermoelectric semiconductor refrigeration sheets 6 evenly distributed in the hollow plate body 5. The heat-absorbing side and the heat-dissipating side of the thermoelectric semiconductor refrigeration sheet 6 are respectively attached to the two inner wall surfaces of the hollow plate body 5; the hot sides of each pair of electric heat-conducting plates are opposite to each other and form a spray space 7. The front and rear sides of the spray space 7 are blocked by a sealing plate 8. The upper and lower sides of the spray space 7 are open, and a first spray pipe 9 cooperating with the spray space 7 is provided on the body 1. The first spray pipe 9 can spray water into the spray space 7 from top to bottom; a plurality of hemispherical protrusions 10 are evenly distributed on the side of the above-mentioned hollow plate body 5 facing the spray space 7, which increases the heat exchange area between the hollow plate body 5 and the water flow. The material of the hollow plate body 5 is stainless steel

[0022] An air intake space 11 is provided on the cold side of the electric heat conducting plate. The air intake space 11 is formed by combining two electric heat conducting plates or combining an electric heat conducting plate and a side plate 12. The upper and lower sides of the air intake space 11 are closed, and the water outlet of the first spray pipe 9 cannot enter the air intake space 11. Two air disturbing mechanisms are provided in the air intake space 11 along the forward direction of the air flow. The air disturbing mechanisms are responsible for guiding the gas in the middle of the air intake space 11 to both sides to prevent this part of the gas from not participating in heat exchange and directly flowing through the air intake space 11. Specifically, the air disturbing mechanism includes two inclined grilles 12 symmetrically arranged in the air intake space 11 and an air guide box 13 arranged between the two inclined grilles 12. The heights of the inclined grilles 12 and the air guide box 13 are equal to the inner height of the air intake space 11. Side height, the air guide box 13 is open on one side facing the incoming air direction, and the air guide box 13 has an air guide arc 14 on the side away from the incoming air direction. Two air outlet slots 15 facing the inclined grille 12 are provided on the air guide box 13. The height of the air outlet slot 15 is close to the height of the air guide box 13. The two air outlet slots 16 are respectively located on both sides of the air guide arc 14. A plurality of vertical cylinders 16 are provided in the air outlet slot 15. The height of the vertical cylinder 16 is equal to the height of the air outlet slot 15. There is a gap between adjacent vertical cylinders 16. After the airflow passes through the vertical cylinder 16, a plurality of small vortices are formed behind the vertical cylinder 16. The small vortices are broken after hitting the inclined grille 12, so that the airflow in the air intake space 11 is converted into turbulent airflow, thereby increasing the heat exchange efficiency between the airflow and the electric heat conductive plate;

[0023] The cooling mechanism includes a heat exchanger fin group 17 and a second spray pipe 18 disposed above the heat exchanger fin group 17. The heat exchanger fin group 17 includes a plurality of mutually parallel evaporative heat exchanger fins. Water sprayed from the second spray pipe 18 flows over the evaporative heat exchanger fins. As the air flows through the heat exchanger fin group 17 and into the body 1, the water evaporates and absorbs heat, thereby reducing the air temperature and increasing the humidity.

[0024] A water tank 19 with an upper opening is provided in the body 1 below the mixing mechanism 3 and the cooling mechanism 4. A water pump 20 is provided in the water tank 19. The outlet of the water pump 20 is connected to the first spray pipe 9 and the second spray pipe 18. The preferred number of water pumps is two, one of which is a submersible pump and is installed at the bottom of the inner side of the water tank 19. The outlet of the water pump 20 is connected to the first spray pipe. Due to the difference in specific gravity between hot water and cold water, the water pump 20 can deliver water with a lower temperature to the reference spray space 7. and heat exchange, which is beneficial to reducing the hot side temperature of the electric heat conductive plate; another water pump 20 is installed outside the water tank 19 and the outlet of the water pump 20 is connected to the second spray pipe 18, the inlet of this water pump 20 is connected to the water pumping pipe 21, and the end of the water pumping pipe 21 is provided with a floating plate 22, which enables the water pump 20 to suck the water with higher temperature to the cooling mechanism 4 and spray it to the heat exchange plate group 17. This water evaporation process is easier to occur, which is beneficial to evaporation and heat absorption; a water supply port connected to the water tank 19 is also provided on the body 1.

[0025] The working principle of this embodiment is:

[0026] When the machine is running, the first spray pipe 9 and the second spray pipe 18 spray water respectively. In the mixing mechanism 3, the intake air flows through the partition wall for heat exchange to form dry cold air. In the cooling mechanism 4, the intake air flows through the water for heat exchange to form moist cold air. The moist cold air and the dry cold air are mixed in the machine body 1 and sent out by the fan, which significantly reduces the humidity of the outlet air and effectively avoids the excessive humidity of the air outlet of the air cooler affecting the surrounding vision or the safe operation of electrical equipment.

[0027] The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

Claims

1. An evaporative air cooler, characterized in that: The machine body comprises a machine body, an air outlet is provided on the left side of the machine body, a fan is provided inside the air outlet, and an air mixing cooling device is provided on the front, rear and right sides of the machine body respectively; the air mixing cooling device comprises an air mixing mechanism and a cooling mechanism; The air mixing mechanism includes at least one pair of electric heat conducting plates, each of which has a cold side and a hot side, the hot sides of each pair of electric heat conducting plates facing each other and forming a spray space, the upper and lower sides of the spray space are open, and a first spray pipe cooperating with the spray space is provided on the body; an air intake space is provided on the cold side of the electric heat conducting plate, at least one air disturbing mechanism is provided in the air intake space along the forward direction of the air flow, the air disturbing mechanism includes two inclined grilles symmetrically arranged in the air intake space and an air guide box arranged between the two inclined grilles, the air guide box is open on one side facing the incoming air direction, an air outlet slot facing the inclined grille is provided on the air guide box, and a plurality of vertical cylinders are provided in the air outlet slot; The cooling mechanism includes a heat exchange fin group and a second spray pipe arranged above the heat exchange fin group; A water tank with an upper opening is provided in the body below the gas mixing mechanism and the cooling mechanism. A water pump is provided in the water tank, and an outlet of the water pump is connected to the first spray pipe and the second spray pipe.

2. The evaporative air cooler according to claim 1, characterized in that: The electric heat conductive plate includes a hollow plate body and a plurality of thermoelectric semiconductor cooling sheets evenly distributed in the hollow plate body, wherein the heat absorbing side and the heat dissipating side of the thermoelectric semiconductor cooling sheets are respectively attached to the two inner wall surfaces of the hollow plate body.

3. The evaporative air cooler according to claim 2, characterized in that: A plurality of hemispherical protrusions are evenly distributed on one side of the hollow plate body facing the spraying space.

4. An evaporative air cooler according to claim 2 or 3, characterized in that: The hollow plate is made of stainless steel.

5. The evaporative air cooler according to claim 1, characterized in that: There are two water pumps, one of which is a submersible pump and is installed at the bottom inside the water tank, and the outlet of this water pump is connected to the first spray pipe; the other water pump is installed outside the water tank and the outlet of the water pump is connected to the second spray pipe, the inlet of this water pump is connected to a water suction pipe, and a float is provided at the end of the water suction pipe.

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