Modular Evaporative Coolers

Abstract

The present invention discloses a modular evaporative cooler, comprising a base and an upper cover, at least one cooling module is arranged between the base and the upper cover, the base has a liquid storage chamber and an air intake chamber arranged adjacently, the cooling module has a cooling chamber and two air intake chambers and a separation chamber respectively located on both sides thereof, the upper cover, located above the cooling module, has a rotary chamber and an exhaust chamber arranged adjacently, the air from the air intake chamber of the base enters the two air intake chambers, the rotary chamber, the cooling chamber, the separation chamber and the exhaust chamber in sequence, and is finally discharged into the environment by the exhaust fan at the top of the exhaust chamber. The present invention has a simple structure and is easy to assemble, and can form saturated humid air with a relatively high temperature at its outlet, and the saturated humid air has a relatively high heat carrying capacity and a relatively high moisture carrying capacity, thereby reducing the air volume of the exhaust fan and the flow rate of cooling water, so that the energy consumption of the exhaust fan and the consumption of cooling water are greatly reduced.

Description

Technical Field

[0001] The invention relates to the technical field of evaporative coolers, and in particular to a modular evaporative cooler. Background Art

[0002] In recent years, with the rapid development of the refrigeration and freezing storage industry, the construction of domestic cold storage has entered a peak period, and the demand for cold storage has increased accordingly. The current conventional refrigerant Freon is easy to destroy the ozone layer and cause atmospheric warming, and will be gradually eliminated. Carbon dioxide (R744) is an atmospheric environment-friendly refrigerant. It has been used as a refrigerant since the end of the 19th century, and has a history of more than 100 years. At present, the application research of CO2 refrigeration technology has become increasingly mature, but it still needs to be further improved in terms of equipment cost and energy consumption. The existing evaporative condenser used to cool the refrigerant CO2 (high temperature) has the defect of high exhaust temperature. Since the exhaust temperature is limited by the temperature of the incoming cooling water, the heat and moisture carrying capacity of the exhaust of the condenser is limited, resulting in large exhaust fan air volume and cooling water spray volume, and high energy consumption. Summary of the invention

[0003] In order to solve the above problems, the present invention provides a modular evaporative cooler which is easy to install and has low energy consumption. Specifically, the following technical solutions can be adopted:

[0004] The modular evaporative cooler of the present invention comprises

[0005] The base has a liquid storage chamber and an air intake chamber which are adjacent to each other, wherein the top of the liquid storage chamber is provided with a liquid inlet, the bottom of the liquid storage chamber is provided with a liquid discharge valve, the air intake chamber is provided with an air intake port located at the side and an air exhaust port located at the top, and the air intake port is provided with a valve;

[0006] A cooling module is located above the base, and has a cooling chamber and two air intake chambers and a separation chamber respectively located on both sides thereof; two air intake ports corresponding to the one exhaust port are arranged at the bottom of the two air intake chambers, and two exhaust ports are arranged at the top of the two air intake chambers; three air intake ports are arranged on the top of the cooling chamber, a sprayer and a CO2 cooling coil are arranged from top to bottom in the cooling chamber, three exhaust ports connected to the separation chamber are opened on the side wall of the cooling chamber, and the three exhaust ports are located below the CO2 cooling coil; four exhaust ports are arranged on the top of the separation chamber, and a liquid discharge port corresponding to the liquid inlet is arranged at the bottom of the separation chamber;

[0007] The upper cover is located above the cooling module and has a rotary chamber and an exhaust chamber that are adjacent to each other. The rotary chamber is located above the cooling chamber and the second air intake chamber. The bottom of the rotary chamber is provided with a fourth air intake port corresponding to the second exhaust port and a fifth exhaust port corresponding to the third air intake port; the bottom of the exhaust chamber is provided with a fifth air intake port corresponding to the fourth exhaust port, and the top of the exhaust chamber is provided with an exhaust port for installing an exhaust fan.

[0008] Each cooling module has two air inlets, one of which is arranged vertically corresponding to the second air inlet and the second exhaust port, and the other is arranged vertically corresponding to the second air inlet and the third air inlet.

[0009] The cooling modules are stacked up and down in a number of 2 to 8.

[0010] There are 2 to 8 cooling modules arranged in the horizontal direction. The separation chamber, liquid storage chamber and exhaust chamber of each cooling module are one respectively, and all of them are spliced ​​structures located at the center of the base.

[0011] The modular evaporative cooler provided by the present invention adopts a modular design, has a simple structure and is easy to assemble. The cooling air flows from top to bottom along the outside of the CO2 cooling coil, and the CO2 refrigerant to be cooled flows from bottom to top inside the CO2 cooling coil. At the same time, the sprayer located above the CO2 cooling coil can spray mist droplets, so that the droplets can evaporate quickly on the outer surface of the CO2 cooling coil. Therefore, saturated humid air with a relatively high temperature can be formed at the outlet of the cooler. The saturated humid air has high heat and moisture carrying capacities, thereby reducing the air volume of the exhaust fan and the flow rate of cooling water, thereby greatly reducing the energy consumption of the exhaust fan and the cooling water consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the present invention.

[0013] Figure 2 Figure 1 Schematic diagram of the decomposition structure.

[0014] Figure 3 It is a schematic diagram of the structure of embodiment 2 of the present invention.

[0015] Figure 4 It is a structural diagram of embodiment 3 of the present invention. DETAILED DESCRIPTION

[0016] The following is a detailed description of an embodiment of the present invention in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific working process are given, but the protection scope of the present invention is not limited to the following embodiment.

[0017] Embodiment 1:

[0018] like Figure 1 , 2 As shown, the modular evaporative cooler of the present invention is assembled from a base, a cooling module and an upper cover. The base has a liquid storage chamber 101 and an air intake chamber 102 arranged adjacent to each other. The top of the liquid storage chamber 101 is provided with a liquid inlet K1, the bottom of the liquid storage chamber 101 is provided with a liquid discharge valve Q, and the air intake chamber 102 is provided with an air intake port J1 located on the side and an exhaust port P1 located on the top, and a valve is installed at the air intake port J1. The cooling module is located above the base, and has a cooling chamber 201 and two air inlet chambers 202 and a separation chamber 203 respectively located on both sides thereof. The bottom of the above-mentioned two air inlet chambers 202 is provided with two air inlet ports J2 corresponding to the one exhaust port P1, and the top of the two air inlet chambers 202 is provided with two exhaust ports P2; the top of the cooling chamber 201 is provided with three air inlet ports J3, and the cooling chamber 201 is provided with sprayers 204 and CO2 cooling coils 205 from top to bottom. The side wall of the cooling chamber 201 is provided with three exhaust ports P3 connected to the separation chamber 203, and the three exhaust ports P3 are located below the CO2 cooling coil 205; the top of the separation chamber 203 is provided with four exhaust ports P4, and the bottom of the separation chamber 203 is provided with a liquid discharge port K2 corresponding to the liquid inlet K1. The upper cover is located above the cooling module, and has a rotary chamber 301 and an exhaust chamber 302 that are adjacently arranged. The rotary chamber 301 is located above the cooling chamber 201 and the second air intake chamber 202. The bottom of the rotary chamber 301 is provided with a fourth air intake port J4 corresponding to the second exhaust port P2 and a fifth exhaust port P5 corresponding to the third air intake port J3; the bottom of the exhaust chamber 302 is provided with a fifth air intake port J5 corresponding to the fourth exhaust port P4, and the top of the exhaust chamber 302 is provided with an exhaust port F for installing an exhaust fan 303. After the base, cooling module and upper cover are assembled from bottom to top, the exhaust port P1 and the second air inlet J2, the second exhaust port P2 and the fourth air inlet J4, the fifth exhaust port P5 and the third air inlet J3, the fourth exhaust port P4 and the fifth air inlet J5, the liquid inlet K1 and the liquid discharge port K2 form a gas channel or a liquid channel in pairs, so that the gas enters the second air inlet chamber 202, the rotary chamber 301, the cooling chamber 201, the separation chamber 203 and the exhaust chamber 302 in sequence from the first air inlet chamber 102, and the liquid enters the liquid storage chamber 101 from the separation chamber 203.

[0019] In summer, when the cooling water is sufficient and under normal operating conditions, first open the valve at the air inlet J1, then pass the cooling water into the sprayer 204 to spray out mist droplets, then pass the supercritical CO2 working medium to be cooled into the lower inlet of the CO2 cooling coil 205, so that it runs along the coil to the upper outlet, and then turn on the exhaust fan 303. At this time, the air from the base air inlet chamber 102 enters the air inlet chamber 202, the rotary chamber 301, the cooling chamber 201, the separation chamber 203 and the exhaust chamber 302 in turn, and is finally discharged into the environment by the exhaust fan 303. When the cooler is operating normally, the cooling water mass flow Mc is not less than the difference between the air mass flow Me in the exhaust fan 303 and the air mass flow Mf flowing through the air inlet port 4 J4, and the temperature change of the supercritical CO2 to be cooled before and after passing through the CO2 cooling coil 205 is greater than 80°C. Therefore, the high-temperature saturated wet air flowing through the exhaust port 3 P3 has a relative humidity greater than or equal to 98% and a temperature greater than or equal to 50°C. After entering the separation chamber 203, a part of it is condensed into liquid and enters the liquid storage chamber 101. When the water level in the liquid storage chamber 101 reaches a predetermined height, the drain valve Q is opened to discharge water to the environment.

[0020] In winter, when the ambient temperature is lower than 0°C, there is a lack of cooling water or the cooling water is easy to freeze, the sprayer 204 is closed, the valve at the air inlet port J1 is opened, and then the supercritical CO2 working medium to be cooled is introduced into the lower inlet of the CO2 cooling coil 205, so that it runs along the coil to the upper outlet, and then the exhaust fan 303 is turned on. At this time, the air from the first air inlet chamber 102 of the base enters the second air inlet chamber 202, the rotary chamber 301, the cooling chamber 201, the separation chamber 203 and the exhaust chamber 302 in sequence, and is finally discharged to the environment by the exhaust fan 303. Since the temperature change value of the supercritical CO2 to be cooled before and after passing through the CO2 cooling coil 205 is greater than 80°C, the high-temperature saturated wet air flowing through the third exhaust port P3 has a relative humidity greater than or equal to 98% and a temperature greater than or equal to 50°C. After entering the separation chamber 203, a part of it condenses into liquid and enters the liquid storage chamber 101. When the water level of the liquid storage chamber 101 reaches a predetermined height, the drain valve Q is opened to discharge water to the environment.

[0021] Embodiment 2:

[0022] The modular evaporative cooler of the present invention is assembled from a base, two cooling modules stacked up and down, and an upper cover. Each of the cooling modules has two air inlets J2, one of which corresponds to the second air inlet J2 and the second exhaust port P2, and the other corresponds to the second air inlet J2 and the third air inlet J3, so as to form a Figure 3The cooler shown. When it is in operation, the air from the first air inlet chamber 102 of the base enters the second air inlet chamber 202 of the lower cooling module, a part of which enters the cooling chamber 201 and the separation chamber 203 of the lower cooling module, and then enters the separation chamber 203 of the upper cooling module, and the other part enters the rotary chamber 301 and the cooling chamber 201 of the upper cooling module, and then merges with the previous part of the air in the separation chamber 203, enters the exhaust chamber 302, and is finally discharged to the environment by the exhaust fan 303. The liquid generated in the separation chamber 203 of the upper cooling module enters the separation chamber 203 of the lower cooling module under the action of gravity and converges until the water level reaches a predetermined height, and the drain valve Q is opened to discharge water to the environment.

[0023] Embodiment 3:

[0024] The modular evaporative cooler of the present invention is assembled from a base, two cooling modules and an upper cover, wherein the cooling modules are arranged side by side, and the separation chamber 203, the liquid storage chamber 101 and the exhaust chamber 302 share one, that is, the separation chamber 203, the liquid storage chamber 101 and the exhaust chamber 302 are all composed of two cooling modules. The working process is the same as that of Example 1.

[0025] The modular design adopted by the present invention can adapt to cold storages of different sizes by flexibly configuring different numbers of cooling modules, which greatly facilitates the design, production and installation of the cooler and reduces the production and maintenance costs of the cooler product.

[0026] It should be noted that, in the description of the present invention, terms indicating orientation or positional relationships, such as "front", "rear", "left", "right", "vertical", "horizontal", "inside", "outside", etc., are based on the orientation or positional relationships shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

Claims

1. A modular evaporative cooler, Features: include The base has a liquid storage chamber and an air intake chamber which are adjacent to each other, wherein the top of the liquid storage chamber is provided with a liquid inlet, the bottom of the liquid storage chamber is provided with a liquid discharge valve, the air intake chamber is provided with an air intake port located at the side and an air exhaust port located at the top, and the air intake port is provided with a valve; The cooling module is located above the base and has a cooling chamber and two air intake chambers and a separation chamber located on both sides thereof; the bottom of the two air intake chambers is provided with two air intake ports corresponding to the one exhaust port, and the top of the two air intake chambers is provided with two exhaust ports; the top of the cooling chamber is provided with three air intake ports, and the cooling chamber is provided with a sprayer and a CO 2 The cooling coil has three exhaust ports connected to the separation chamber on the side wall of the cooling chamber. The three exhaust ports are located at the CO 2 Below the cooling coil; the top of the separation chamber is provided with four exhaust ports, and the bottom of the separation chamber is provided with a liquid discharge port corresponding to the liquid inlet; The upper cover is located above the cooling module and has a rotary chamber and an exhaust chamber that are adjacently arranged. The rotary chamber is located above the cooling chamber and the second air intake chamber. The bottom of the rotary chamber is provided with a fourth air intake port corresponding to the second exhaust port and a fifth exhaust port corresponding to the third air intake port; the bottom of the exhaust chamber is provided with a fifth air intake port corresponding to the fourth exhaust port, and the top of the exhaust chamber is provided with an exhaust port for installing an exhaust fan; Each cooling module has two air inlets, one of which is disposed correspondingly to the second air inlet and the second exhaust port, and the other is disposed correspondingly to the second air inlet and the third air inlet; There are 2 to 8 cooling modules arranged in the horizontal direction. The separation chamber, liquid storage chamber and exhaust chamber of each cooling module are one respectively, and all of them are spliced ​​structures located at the center of the base.

2. The modular evaporative cooler according to claim 1, Features: The cooling modules are stacked up and down in a number of 2 to 8.

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