CN218544667U

CN218544667U - Solution dehumidification evaporation water cooler

Info

Publication number: CN218544667U
Application number: CN202220426298.2U
Authority: CN
Inventors: 白本通
Original assignee: Shenzhen Esin Technology Co ltd
Current assignee: Shenzhen Esin Technology Co ltd
Priority date: 2022-03-01
Filing date: 2022-03-01
Publication date: 2023-02-28
Anticipated expiration: 2032-03-01

Abstract

The utility model relates to a solution dehumidification evaporation water chiller, which comprises a solution dehumidification unit, an evaporation cooling unit and a solution concentration regeneration unit; the solution dehumidifying unit is used for dehumidifying the ambient air entering the solution dehumidifying evaporation water chiller in a dehumidifying solution mode; the evaporative cooling unit cools the circulating water of the air conditioner in an evaporative cooling mode to obtain cold water; the solution concentration and regeneration unit concentrates and conveys the dehumidifying solution with reduced concentration after the air dehumidification treatment of the solution dehumidifying unit to the solution dehumidifying unit for recycling. The solution concentration regeneration unit repeatedly utilizes the dehumidification solution, so that the effect of outputting cold water by solution dehumidification and indirect evaporative cooling combined solution dehumidification is realized, on one hand, the humidity of the entering air is reduced, the dew point is reduced, and the evaporative cooling effect is indirectly improved; on the other hand, the dehumidifying solution can be recycled, and the whole solution dehumidifying evaporation water cooler only needs to be supplemented with circulating water, so that the dehumidifying evaporation water cooler is convenient and easy to use and simple to maintain.

Description

Solution dehumidification evaporation water cooler

Technical Field

The application relates to the field of evaporative cooling and heat and mass exchange, in particular to a solution dehumidification evaporative water cooler combining solution dehumidification and indirect evaporative cooling and a solution dehumidification air conditioner adopting the solution dehumidification evaporative water cooler.

Background

The evaporative cooling belongs to a natural cooling mode utilizing dry air energy of ambient air, wherein dew point (dew temperature) type indirect evaporative cooling is a process of utilizing air and water to contact and transfer heat and mass in one space of mutually isolated heat exchangers to generate cold air and cold water, then carrying out sensible heat exchange with the ambient air in the other space of the heat exchangers through the walls of the heat exchangers, and then carrying out direct evaporation on the surfaces of fillers to obtain the cold air or the cold water.

For the heat dissipation requirement of the data center, the dew point type indirect evaporative cooling can meet the summer refrigeration requirement of the data center in dry areas such as northwest China, but mechanical compression refrigeration is still needed in summer in other areas to meet the temperature requirement of IT equipment of the data center. When the ambient air temperature and humidity are high, the dew point can be reduced and the outlet water temperature of indirect evaporative cooling can be reduced by dehumidifying and drying the air, so that the IT equipment of the data center can be cooled in summer by means of evaporative cooling.

The dehumidifying solution is used for dehumidifying air to reduce the dew point temperature of the air, and then evaporative cooling is carried out to obtain cold water with required temperature. The present research and development of this kind of equipment is concentrated on the air side, and solar energy or heat pump are used in the concentrated reduction of dehumidification solution, because the temperature that the concentration needs is higher, causes heat energy utilization efficiency on the low side, and traditional air conditioning equipment does not have obvious advantage is compared to complete machine efficiency to equipment is huge, and investment maintenance cost is high.

The solution dehumidification technology is to concentrate a dehumidification solution by utilizing low-price heat sources comprising solar energy, a heat pump, waste heat and the like, then dehumidify air, and then evaporate and cool the air to obtain cold air or cold water, which is the development direction of a future air conditioner.

SUMMERY OF THE UTILITY MODEL

Accordingly, there is a need for a solution dehumidification evaporative water chiller and a solution dehumidification air conditioner.

A solution dehumidification evaporation water chiller comprises a solution dehumidification unit, an evaporation cooling unit and a solution concentration regeneration unit;

the solution dehumidifying unit is used for dehumidifying the ambient air entering the solution dehumidifying evaporation water chiller by adopting a dehumidifying solution mode;

the evaporative cooling unit is used for cooling the air conditioner circulating water in an evaporative cooling mode to obtain cold water;

the solution concentration and regeneration unit is used for concentrating the dehumidifying solution with reduced concentration after the air dehumidifying treatment in the solution dehumidifying unit and then conveying the dehumidifying solution to the solution dehumidifying unit for recycling.

According to the solution dehumidification evaporation water cooler, the solution is repeatedly used through the solution concentration regeneration unit, the solution dehumidification and indirect evaporation cooling combined solution dehumidification evaporation cold water output effect is achieved, on one hand, the humidity of the entering air is reduced, the dew point is reduced, and the evaporation cooling effect is indirectly improved; on the other hand, the dehumidification solution can be recycled, and the whole solution dehumidification evaporation water cooler only needs to supplement circulating water, so that the dehumidification evaporation water cooler is convenient and easy to use and simple to maintain; on the other hand, cold water is used as an output cold source, so that the device has the advantage of compact product structure, and the processing capacity is greatly improved.

Further, in one embodiment, the solution dehumidification evaporation water chiller further comprises an air filtering unit, and the air filtering unit is used for filtering air entering the inside of the solution dehumidification evaporation water chiller, namely ambient air.

Further, in one embodiment, the solution dehumidification evaporation water chiller further comprises an air supply unit, and the air supply unit is used for sending out air cooled by circulating water in an evaporation mode.

In one embodiment, the solution dehumidification evaporation water chiller further comprises an air filtering unit and an air supply unit, wherein the air filtering unit is used for filtering air entering the solution dehumidification evaporation water chiller; the air supply unit is used for sending out the air which sequentially passes through the air filtering unit, the solution dehumidifying unit and the evaporative cooling unit.

In one embodiment, the solution dehumidifying unit comprises a solution circulating pump, a solution liquid distributor, a dehumidifying filler structure, a liquid collecting tray, a solution water tank and a gas-liquid heat exchanger;

the solution circulating pump is communicated with the gas-liquid heat exchanger through a liquid inlet pipeline, the gas-liquid heat exchanger is communicated with the solution distributor through a liquid outlet pipeline, and the liquid inlet pipeline is also communicated with the solution water tank and the solution circulating pump;

the dehumidifying filling structure is arranged close to an air inlet or an air filtering unit of the solution dehumidifying evaporation water cooler, the solution distributor is arranged above the dehumidifying filling structure, and the solution distributor is used for distributing and spraying the dehumidifying solution to the dehumidifying filling structure;

the dehumidifying filler structure is arranged above the liquid collecting disc, and the liquid collecting disc is used for collecting the dehumidifying solution which is used for dehumidifying air in the dehumidifying filler structure and conveying the dehumidifying solution to the solution water tank.

In one embodiment, the evaporative cooling unit comprises an air conditioner water return pipeline, an air conditioner water supply pipeline, an evaporative water distributor, an evaporative filler structure, a water collecting tray, an air conditioner cooling water tank and a water supplementing valve;

the air conditioner water return pipeline is communicated with the evaporation water distributor, and the air conditioner water supply pipeline is communicated with the air conditioner cooling water tank;

the evaporation filler structure is arranged between the dehumidification filler structure of the solution dehumidification unit and the gas-liquid heat exchanger, the evaporation water distributor is arranged above the evaporation filler structure, and the evaporation water distributor is used for spraying the air-conditioning circulating water to the evaporation filler structure;

the evaporation filler structure is positioned above the water collecting tray, and the water collecting tray is used for collecting cold water which flows out of the evaporation filler structure and is cooled by the air passing through the solution dehumidification unit in an evaporation cooling mode, and conveying the cold water to the air-conditioning cooling water tank;

and the water replenishing valve is respectively communicated with the air conditioner cooling water tank and the external water pipe and is used for replenishing the air conditioner circulating water.

In one embodiment, the solution concentration regeneration unit comprises a recovery pipeline, a regeneration pipeline, an evaporator, a vacuum pump, a condensation structure, a solution concentration circulating pump and a condensation water tank;

two ends or an inlet and an outlet of the recovery pipeline are respectively communicated with the solution water tank of the solution dehumidifying unit and the evaporator;

the regeneration pipeline is communicated with a liquid inlet pipeline and a solution circulating pump of the solution dehumidifying unit and is also communicated with the solution concentration circulating pump and the evaporator;

the vacuum pump is communicated with the evaporator and the condensation structure through a steam pipe and a three-way valve;

the heat exchange coil part of the condensation structure is arranged in an inner cavity of the evaporator so as to contact the dehumidification solution in the inner cavity, steam generated after partial moisture in the dehumidification solution is evaporated enters the condensation structure after passing through the vacuum pump, and generated condensed water flows into the condensed water tank;

and after the dehumidifying solution in the inner cavity loses the partial moisture, the dehumidifying solution enters the liquid inlet pipeline through the regeneration pipeline under the action of the solution concentration circulating pump.

In one embodiment, the solution concentration regeneration unit further comprises a throttle valve, and the dehumidified solution in the solution water tank after air dehumidification enters the evaporator after passing through the recovery pipeline and the throttle valve; and/or;

the vacuum pump is a magnetic suspension vacuum pump or a gas suspension vacuum pump; and/or;

the solution dehumidification evaporation water chiller further comprises a supporting frame, and the evaporator is arranged on the supporting frame; and/or;

the solution dehumidification evaporative water chiller further comprises a control unit connected with the vacuum pump, wherein the control unit is used for controlling the concentrations of the dehumidification solution in the inner cavity and the solution water tank by controlling the working load of the vacuum pump, so that the humidity of the air subjected to dehumidification treatment is adjusted to control the temperature of the air-conditioning circulating water in the air-conditioning cooling water tank of the evaporative cooling unit.

In one embodiment, the control unit is further connected to the throttle valve, the control unit is configured to automatically open the throttle valve to deliver the dehumidification solution in the solution tank into the evaporator when the dehumidification solution in the solution tank accumulates to a predetermined position, and automatically close the throttle valve when the dehumidification solution in the solution tank is below a sensing level in the solution tank; and/or the like, and/or,

the control unit is also connected with a water replenishing valve of the evaporative cooling unit, and is used for automatically opening the water replenishing valve when the air-conditioning circulating water in the air-conditioning cooling water tank is lower than the water replenishing level in the air-conditioning cooling water tank, and automatically closing the water replenishing valve when the air-conditioning circulating water in the air-conditioning cooling water tank is higher than a specific water level; and/or the presence of a catalyst in the reaction mixture,

the control unit is also connected with the three-way valve and is used for adjusting the amount of steam entering the condensation structure by controlling the three-way valve arranged on a steam pipe of the solution concentration and regeneration unit so as to adjust the temperature of the dehumidification solution; and/or the presence of a catalyst in the reaction mixture,

the control unit is also connected with the solution circulating pump and is used for adjusting the dehumidification capacity or the cooling capacity of the solution dehumidification unit on the ambient air by controlling the flow of the dehumidification solution in the solution dehumidification unit; and/or the presence of a catalyst in the reaction mixture,

the control unit is also connected with an air supply unit of the solution dehumidification evaporation water cooler and is used for controlling the refrigerating capacity of the solution dehumidification evaporation water cooler; and/or the presence of a catalyst in the reaction mixture,

the control unit is also connected with a solution concentration circulating pump of the solution concentration regeneration unit and is used for controlling the flow of the dehumidifying solution after being evaporated and conveyed to the solution dehumidifying unit.

In one embodiment, the solution dehumidification evaporation water chiller further comprises an air filtering unit, an air supply unit and a shell;

the air supply unit, the gas-liquid heat exchanger, the dehumidification filler structure, the liquid collecting disc and the solution water tank of the solution dehumidification unit, and the evaporation filler structure, the water collecting disc and the air-conditioning cooling water tank of the evaporation cooling unit are all arranged in the shell;

the liquid inlet pipeline and the liquid outlet pipeline of the solution dehumidifying unit are at least partially arranged in the shell;

a recovery pipeline and a regeneration pipeline of the solution concentration regeneration unit, and an air conditioner water return pipeline and an air conditioner water supply pipeline of the evaporation cooling unit are partially arranged in the shell;

the air filtering unit is arranged at the air inlet of the shell, and the air supply position of the air supply unit is arranged at the air outlet of the shell.

In one embodiment, the evaporative cooling unit operates in a cross-flow mode, the solution dehumidification unit operates in a counter-flow mode or a cross-flow mode, and the liquid-to-liquid heat exchanger of the solution dehumidification unit operates in a cross-flow mode.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the description of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a solution dehumidification evaporative water chiller according to the present application.

Fig. 2 is a schematic structural diagram of an embodiment of a solution concentration regeneration unit according to the present application.

Fig. 3 is a schematic structural diagram of an embodiment of a solution concentration regeneration unit and a supporting frame according to the present disclosure.

Fig. 4 is a schematic structural diagram of an embodiment of a solution dehumidification unit according to the present application.

FIG. 5 is a schematic structural diagram of an embodiment of an evaporative cooling unit according to the present application.

Fig. 6 is a schematic structural diagram of another embodiment of the solution dehumidification evaporative water chiller according to the present application.

Fig. 7 is a schematic structural diagram of another embodiment of the solution dehumidification evaporative water chiller according to the present application.

Fig. 8 is a partial structural schematic diagram of the embodiment shown in fig. 7.

FIG. 9 is a schematic diagram of an evaporative packing configuration of an evaporative cooling unit as described herein operating in a cross-flow mode.

FIG. 10 is a schematic diagram of a desiccant packing configuration of a solution dehumidification unit as described herein operating in a cross-flow mode.

FIG. 11 is a schematic diagram of a desiccant packing configuration of a solution dehumidification unit as described herein operating in a counter-current mode.

Fig. 12 is a schematic diagram of a cross-flow mode of operation of a liquid-to-air heat exchanger of a solution dehumidification unit as described herein.

Reference numerals:

the air-conditioning system comprises an air filtering unit 100, a solution dehumidifying unit 200, an evaporative cooling unit 300, a solution concentrating and regenerating unit 400, an air supply unit 500, a shell 600, a supporting frame 700, a dehumidifying solution 800, air-conditioning circulating water 900, an air inlet F1, an air outlet F2, an air inlet direction F3 and a water flow direction F4;

the device comprises a liquid inlet pipeline 210, a liquid outlet pipeline 220, a solution circulating pump 230, a solution liquid distributor 240, a dehumidifying filler structure 250, a liquid collecting tray 260, a solution water tank 270, a sensing position 271, a detecting piece 272, a conducting wire 273, a gas-liquid heat exchanger 280, a liquid inlet end D1 and a liquid outlet end D2;

an air conditioner water return pipeline 310, an air conditioner water supply pipeline 320, an air conditioner cooling water circulating pump 330, an evaporation water distributor 340, an evaporation filler structure 350, a water collecting tray 360, an air conditioner cooling water tank 370, a water supplementing position 371, a water supplementing valve 380, a water inlet S1 and a water outlet S2;

the system comprises a recovery pipeline 410, a regeneration pipeline 420, a throttle valve 430, an evaporator 440, an output end 441, an inner cavity 442, a vacuum pump 480, a three-way valve 451, a condensation structure 460, a solution concentration circulating pump 470, a demister 450, a vapor pipe 481, a condensed water tank 490 and a water outlet 491.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "secured to" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used in the description of the present application are for illustrative purposes only and do not represent the only embodiments.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact via an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description of the present application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in the description of this application, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The application discloses a solution dehumidification evaporation water chiller, which comprises a part of or the whole structure of the following embodiments; namely, the solution dehumidification evaporation water chiller comprises the following technical features in part or all. In one embodiment of the application, the solution dehumidification evaporative water chiller comprises a solution dehumidification unit, an evaporative cooling unit and a solution concentration regeneration unit; the solution dehumidifying unit is used for dehumidifying the ambient air entering the solution dehumidifying evaporation water chiller by adopting a dehumidifying solution mode; the evaporative cooling unit is used for cooling the air conditioner circulating water in an evaporative cooling mode to obtain cold water; the solution concentration and regeneration unit is used for concentrating the dehumidifying solution with reduced concentration after the air dehumidifying treatment in the solution dehumidifying unit and then conveying the dehumidifying solution to the solution dehumidifying unit for recycling. According to the solution dehumidification evaporation water cooler, the solution is repeatedly used through the solution concentration regeneration unit, the solution dehumidification and indirect evaporation cooling combined solution dehumidification evaporation cold water output effect is achieved, on one hand, the humidity of the entering air is reduced, the dew point is reduced, and the evaporation cooling effect is indirectly improved; on the other hand, the dehumidification solution can be recycled, and the whole solution dehumidification evaporation water cooler only needs to supplement circulating water, so that the dehumidification evaporation water cooler is convenient and easy to use and simple to maintain; on the other hand, cold water is used as an output cold source, so that the device has the advantage of compact product structure, and the processing capacity is greatly improved.

Further, in one embodiment, the solution dehumidification evaporation water chiller further comprises an air filtering unit, and the air filtering unit is used for filtering air entering the inside of the solution dehumidification evaporation water chiller, namely ambient air. In one embodiment, a solution dehumidification evaporative water chiller is shown in fig. 1, and includes an air filtering unit 100, a solution dehumidification unit 200, an evaporative cooling unit 300, a solution concentration regeneration unit 400, and an air supply unit 500; the air filtering unit 100 is used for filtering air entering the solution dehumidification evaporation water chiller; the solution dehumidification unit 200 is configured to perform dehumidification on the ambient air entering the solution dehumidification evaporation water chiller in a solution dehumidification manner; the evaporative cooling unit 300 is configured to cool the air-conditioning circulating water 900 by an evaporative cooling method to obtain cold water; the solution concentration and regeneration unit 400 is configured to concentrate the dehumidification solution 800, which is obtained by performing the dehumidification treatment on the air and has a reduced concentration, in the solution dehumidification unit 200, and then convey the concentrated dehumidification solution to the solution dehumidification unit 200 for recycling; the air supply unit 500 is configured to supply air that passes through the air filtering unit 100, the solution dehumidifying unit 200, and the evaporative cooling unit 300 in this order. The air supply unit 500 supplies air to the outside at the air outlet F2, so that the outside air enters the solution dehumidification evaporation water chiller from the air inlet F1 through the air filtering unit 100 and reaches the solution dehumidification unit 200. In this embodiment, the solution dehumidification evaporation water chiller further includes an air supply unit 500, and the air supply unit 500 is configured to send out air that is cooled by the air-conditioning circulating water 900 in an evaporation manner. In various embodiments, the air inlet F1 and the air outlet F2 may be integrated in the installation environment, or may be provided as separate structural members, or may be integrated on other structures such as a housing. Further, in one embodiment, the solution dehumidification evaporation water chiller further comprises an air inlet structure, wherein the air inlet structure is used for sending external air to the air filtering unit 100, and the external air enters the inside of the solution dehumidification evaporation water chiller through the air filtering unit 100 to reach the solution dehumidification unit 200. Due to the design, in a hot environment, the improvement of the amount of inlet air is facilitated, and after the solution dehumidification unit 200 and the solution concentration regeneration unit 400 are matched for dehumidification and water removal, the improvement of the evaporative cooling effect of the evaporative cooling unit 300 is facilitated; especially for the data center, because the IT equipment during operation, the air-out temperature is higher, because available natural cold source time is also longer, so solution dehumidification evaporation cold water machine can exert ITs advantage more when high temperature district work, is favorable to using as solution dehumidification air conditioner.

The air filtering unit 100 is used for filtering air entering the air filtering unit 100, that is, the air entering the solution dehumidification evaporation water chiller is filtered by the air filtering unit 100; in one embodiment, the air filter unit 100 is an air filter or a structure containing the air filter. In one embodiment, the solution dehumidification evaporative water chiller further includes an air supply unit 500, the air supply unit 500 is configured to send out air after cooling the air conditioning circulating water 900 in an evaporative manner, that is, the air supply unit 500 is configured to send out air after preparing cold water, specifically, the air conditioning circulating water 900 is cooled in an evaporative manner to obtain cold water and high-humidity air, and the air supply unit 500 sends out the high-humidity air. In one embodiment, the air supply unit 500 is a fan or a structural member including the fan. The air supply unit 500 is matched with the air filtering unit 100, so that the amount of air entering the solution dehumidification evaporation water chiller and dehumidifying in the solution dehumidification unit 200 can be increased.

The solution dehumidifying unit 200 is configured to dehumidify the air filtered in the air filtering unit 100 by using a dehumidifying solution 800; namely, the filtered air entering the solution dehumidification evaporation water chilling machine is subjected to dehumidification treatment. In one embodiment, the dehumidifying solution 800 may be a solution prepared by a conventional solution dehumidifying technology, such as lithium bromide, lithium chloride, calcium chloride, diethylene glycol, triethylene glycol, tetraethylene glycol, dipropylene glycol, propylene glycol, glycerol, etc., and is only suitable for the solution concentrating and regenerating unit 400 to concentrate and remove water for safe use.

The evaporative cooling unit 300 is configured to reduce the temperature of the air conditioning circulating water 900 in an evaporative manner by using the air dehumidified by the solution dehumidifying unit 200 to obtain cold water at a required temperature; namely, the air conditioner circulating water 900 is subjected to evaporative cooling to obtain cooling water for output, and the cooling water is adopted for external cooling; because the specific heat capacity of water is far greater than that of air, for example, under the standard state, the specific heat capacity of water is 4200 joules per kilogram centigrade, and the specific heat capacity of air is 1400 joules per kilogram centigrade, the heat dissipation and temperature reduction method is combined, and the heat dissipation and temperature reduction effect is better than that of the air conditioning method.

The solution concentration and regeneration unit 400 is configured to concentrate the dehumidification solution 800 after air dehumidification, and deliver the concentrated dehumidification solution to the solution dehumidification unit 200 for recycling; the solution concentration and regeneration unit 400 is the key point of the present application, and the solution dehumidification evaporation water chiller of each embodiment of the present application only needs to supplement the air conditioning circulating water 900 in the use process, and due to the ingenious design of the solution concentration and regeneration unit 400, the dehumidification solution 800 after the air dehumidification treatment is concentrated to reduce the moisture therein and recover the concentration of the dehumidification solution 800, and the concentration is controllable, and especially the concentration of the dehumidification solution 800 can be accurately controlled by matching with a vacuum pump; through the effect of the solution concentration regeneration unit 400, the concentration of the dehumidification solution 800 can be controlled, so that the relative humidity of air can be effectively adjusted in a dehumidification mode, the dew point is reduced, the evaporative cooling effect is finally improved, namely, the outlet water temperature of the air conditioning circulating water 900 in the evaporative cooling unit 300 is controlled, the dehumidification solution can be recycled in the process, the whole solution dehumidification evaporative water cooler only needs to be supplemented with circulating water, and the solution dehumidification evaporative water cooler is convenient and easy to use, simple to maintain and applicable to various occasions needing cold water cooling, such as business buildings and data machine rooms.

In one embodiment, the solution concentration regeneration unit 400 is shown in fig. 2, and includes a recycling pipe 410, a regeneration pipe 420, an evaporator 440, a vacuum pump 480, a condensation structure 460, a solution concentration circulation pump 470, and a condensed water tank 490; in this embodiment, the vacuum pump 480 is disposed outside the evaporator 440, the solution concentration regeneration unit 400 further includes a demister 450 communicating with the vacuum pump 480, the demister 450 may be disposed inside the evaporator 440 or outside the evaporator 440, the demister 450, the vacuum pump 480, and the condensation structure 460 are sequentially communicated through a vapor pipe 481, and in this embodiment, the demister 450 is disposed inside the evaporator 440. It is understood that both the condensing structure 460, such as a condensing coil, and the demister 450 can be a component of the evaporator 440, i.e., the evaporator 440 can include the condensing structure 460 and the demister 450. The vacuum pump 480 may be a turbine. The evaporator 440 includes a shell-and-tube heat exchanger and a plate heat exchanger, fig. 2 shows a flooded evaporator in the shell-and-tube heat exchanger, and in practical application, a falling film evaporator in the shell-and-tube heat exchanger may also be used, or a plate heat exchanger may also be used.

In this embodiment, the solution concentration regeneration unit 400 further includes a three-way valve 451 disposed between the vacuum pump 480 and the condensing structure 460, wherein a first end of the three-way valve 451 is connected to the vacuum pump 480, a second end is connected to the condensing structure 460, and a third end is communicated with the condensed water in the condensed water tank 490; the solution dehumidification evaporation water chiller or the solution concentration regeneration unit 400 is configured to control the temperature and the concentration of the dehumidification solution 800 in the inner cavity 442 of the evaporator 440 by controlling the communication state of the three-way valve 451, and the evaporation moisture of the dehumidification solution 800 enters the condensation structure 460 in the state that the inner cavity 442 is communicated with the condensation structure 460 through the three-way valve 451; in a state where the internal chamber 442 communicates with the external air through the three-way valve 451, the evaporated moisture of the dehumidifying solution 800 enters a condensed water tank 490; the larger the valve of the three-way valve 451 is opened, the more moisture is released into the condensed water tank 490, and the lower the solution temperature corresponding to the dehumidifying solution 800. In one embodiment, the third end of the three-way valve 451 is directly connected to the external air or water discharge pipe, so that the evaporated moisture of the dehumidifying solution 800 directly enters the external air or water discharge pipe; further, in one embodiment, in combination with an embodiment having a control module, the control module is connected to the three-way valve 451, and controls the working load of the vacuum pump 480 by controlling the communication state and the communication ratio of the three-way valve 451, so as to control the concentrations of the dehumidification solution 800 in the inner cavity 442 and the solution water tank 270, further adjust the humidity of the air subjected to the dehumidification treatment according to the concentration of the dehumidification solution 800, and finally control the temperature of the outlet water of the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 in an evaporation manner, and so on, the rest of the embodiments are omitted for brevity. In other embodiments, the control module may also be connected to the three-way valve 451 and the vacuum pump 480, respectively. For embodiments with a demister 450, the three-way valve 451 is disposed between the demister 450 and the condensing structure 460. Due to the design, the concentration of the dehumidification solution 800 is controllable, so that the relative humidity of the air in the solution dehumidification evaporation water cooler is controllable, the dew point is reduced, the effect of improving the evaporation cooling effect is achieved, and the outlet water temperature of the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 can be adjusted.

Referring to fig. 4, in one embodiment, the solution dehumidifying unit 200 includes a solution circulating pump 230, a solution distributor 240, a dehumidifying packing structure 250, a liquid collecting pan 260, a solution water tank 270, and a gas-liquid heat exchanger 280; the solution circulating pump 230 is communicated with the liquid-gas heat exchanger 280 through a liquid inlet pipeline 210, the liquid-gas heat exchanger 280 is communicated with the solution distributor 240 through a liquid outlet pipeline 220, and the liquid inlet pipeline 210 is also communicated with the solution water tank 270 and the solution circulating pump 230; the dehumidifying packing structure 250 is disposed adjacent to an air inlet of the solution dehumidifying evaporation water cooler or the air filtering unit 100, the solution distributor 240 is disposed above the dehumidifying packing structure 250, and the solution distributor 240 is configured to distribute the dehumidifying solution 800 to the dehumidifying packing structure 250; the dehumidifying filler structure 250 is disposed above the liquid collecting tray 260, and the liquid collecting tray 260 is configured to collect the dehumidifying solution 800 obtained by dehumidifying air in the dehumidifying filler structure 250, and deliver the dehumidifying solution to the solution water tank 270. In one embodiment, the recovery pipeline 410 is respectively communicated with the solution water tank 270 of the solution dehumidifying unit 200 and the evaporator 440; that is, two ends or inlets and outlets of the recovery duct 410 are respectively communicated with the solution tank 270 and the evaporator 440 of the solution dehumidifying unit 200, for example, one end of the recovery duct 410 is communicated with the solution tank 270, and the other end is communicated with the evaporator 440; the regeneration pipeline 420 is communicated with the liquid inlet pipeline 210 and the solution circulating pump 230 of the solution dehumidifying unit 200, and also communicated with the solution concentration circulating pump 470 and the evaporator 440; for example, the regeneration pipe 420, the solution circulation pump 230, and the liquid inlet pipe 210 of the solution dehumidifying unit 200 are sequentially communicated, and the regeneration pipe 420, the solution concentration circulation pump 470, and the evaporator 440 are sequentially communicated. In this embodiment, the regeneration pipe 420 is connected to the output end 441 at the bottom of the evaporator 440. In one embodiment, the evaporative cooling unit 300 operates in a cross-flow mode, the solution dehumidification unit 200 operates in a counter-flow mode or a cross-flow mode, and the liquid-to-liquid heat exchanger 280 of the solution dehumidification unit 200 operates in a cross-flow mode. The cross flow mode is that the air inlet direction and the water flow direction form a right angle, and the counter flow mode is that the air inlet direction and the water flow direction are opposite. In one embodiment, as shown in FIG. 9, the evaporative filler structure 350 of the evaporative cooling unit 300 operates in a cross-flow mode, with the water flow direction F4 at right angles to the air intake direction F3; in one embodiment, as shown in fig. 10, the dehumidifying packing structure 250 of the solution dehumidifying unit 200 operates in a cross-flow mode, with a water flow direction F4 at right angles to an air intake direction F3; in one embodiment, as shown in fig. 11, the dehumidifying packing structure 250 of the solution dehumidifying unit 200 operates in a counter-current mode, in which the water flow direction F4 is opposite to the air intake direction F3; in one embodiment, as shown in fig. 12, the liquid-to-air heat exchanger 280 of the solution dehumidification unit 200 operates in a cross-flow mode, with the water flow direction F4 at right angles to the air intake direction F3. The rest of the embodiments are analogized and are not described in detail.

The vacuum pump 480 is arranged outside the inner cavity 442 of the evaporator 440, and the vacuum pump 480 is communicated with the condensation structure 460 through a vapor pipe 481; in one embodiment, the vacuum pump 480 is connected to the evaporator 440 and the condensing structure 460 through a vapor pipe 481 and a three-way valve 451; for embodiments having a demister 450, the demister 450 is in communication with the vacuum pump 480 and the condensing structure 460 in series via a vapor tube 481; alternatively, the demister 450 is in communication with the vacuum pump 480, the three-way valve 451, and the condensing structure 460 through a vapor pipe 481 in this order.

The condensation structure 460 is at least partially disposed in the inner cavity 442 of the evaporator 440 to contact the dehumidification solution 800 in the evaporator 440, and a part of water in the dehumidification solution 800 enters the condensation structure 460 through the vacuum pump 480, and enters the condensed water tank 490 after being cooled; after the dehumidification solution 800 in the inner cavity 442 of the evaporator 440 loses the part of the moisture, the dehumidification solution enters the liquid inlet pipe 210 through the regeneration pipe 420 under the action of the solution concentration circulating pump 470. For the embodiment with the demister 450, the moisture evaporated from the dehumidifying solution 800 in the inner cavity 442 sequentially enters the condensing structure 460 through the vacuum pump 480 and the demister 450. Further, the condensation structure 460 includes a condensation pipe, a condensation coil and a condensation loop. The condensation structure 460 is used for discharging a part of the moisture in the evaporated dehumidification solution 800. Further, a part of the water in the dehumidification solution 800 enters the condensation structure 460 through the vacuum pump 480, and enters the condensation water tank 490 after being cooled, and simultaneously, the temperature of the dehumidification solution 800 in the evaporator 440 is raised. Due to the design, evaporation energy is fully utilized, and part of the evaporation energy returns to the evaporator 440 to heat the dehumidification solution 800, so that energy waste and temperature rise of the external environment are avoided, the temperature of the dehumidification solution 800 is improved, and the effect of reducing the relative humidity of air is improved; also, as mentioned above, removing part of the moisture in the dehumidifying solution 800 by evaporation is beneficial to control the concentration of the dehumidifying solution 800, thereby controlling, for example, the relative humidity of the air to be reduced, and further controlling, for example, the dew point to be reduced, and finally improving the evaporative cooling effect.

Further, the condensed water tank 490 is provided with a drain 491 for discharging condensed water through the drain 491. Further, the water outlet 491 is communicated with the water replenishing valve 380 of the evaporative cooling unit 300 and the air-conditioning cooling water tank 370 through a water drain pipeline, and is used for conveying the discharged condensed water to the air-conditioning cooling water tank 370. By adopting the design, under the condition that the air humidity, namely the relative humidity is proper, the condensed water is directly conveyed to the air-conditioning cooling water tank 370 without being drained to the outside for recycling; in other embodiments, the condensed water may also be automatically delivered to the air-conditioning cooling water tank 370 when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is lower than the water replenishing level 371 in the air-conditioning cooling water tank 370; when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is higher than a certain level, the excessive condensed water is automatically discharged.

In one embodiment, as shown in fig. 2, the solution concentration regeneration unit 400 further includes a throttle valve 430, and the dehumidified solution 800 in the solution water tank 270 after the air dehumidification process enters the evaporator 440 through the recovery pipe 410 and the throttle valve 430; in one embodiment, the vacuum pump 480 is a magnetic suspension vacuum pump or a gas suspension vacuum pump; in one embodiment, the solution concentration regeneration unit 400 further comprises a throttle valve 430, and the dehumidified solution 800 in the solution water tank 270 after the air dehumidification process enters the evaporator 440 through the recovery pipe 410 and the throttle valve 430; and the vacuum pump 480 is a magnetic suspension vacuum pump or an air suspension vacuum pump. The rest of the embodiments are analogized and are not described in detail. Compared with the solar energy or the heat pump, the concentration of the dehumidification solution 800 is improved, namely partial moisture in the dehumidification solution is removed, the magnetic suspension vacuum pump or the air suspension vacuum pump has a high energy efficiency ratio which can be more than 10 times of the energy efficiency of the solar energy or the heat pump in a trial-and-manufacture machine, seamless butt joint of dew point type indirect evaporative cooling and solution dehumidification evaporative cooling is facilitated, and a natural cold source can be fully utilized in a data center.

In one embodiment, as shown in fig. 3, the solution dehumidification evaporative water chiller further includes a support frame 700, and the evaporator 440 is disposed on the support frame 700. The support frame 700 may be made of stainless steel or aluminum alloy, and the support frame 700 may include only a plurality of separately provided supporters in view of cost. With the supporting frame 700, it is advantageous to locate the output end 441 of the evaporator 440 at the bottom of the evaporator 440, so as to output the concentrated and regenerated dehumidifying solution 800.

In one embodiment, as shown in fig. 4, the solution dehumidifying unit 200 includes a liquid inlet pipe 210, a liquid outlet pipe 220, a solution circulating pump 230, a solution distributor 240, a dehumidifying packing structure 250, a liquid collecting tray 260, a solution water tank 270, and a gas-liquid heat exchanger 280; the regeneration pipeline 420, the liquid inlet pipeline 210, the gas-liquid heat exchanger 280, the liquid outlet pipeline 220 and the solution distributor 240 are sequentially communicated, and the liquid inlet pipeline 210 is further communicated with the solution water tank 270 and the solution circulating pump 230; referring to fig. 2, the regeneration pipeline 420 is connected to the liquid inlet pipeline 210 through a liquid inlet end D1, and the solution tank 270 is connected to the recycling pipeline 410 through a liquid outlet end D2. In this embodiment, one end of the liquid inlet pipe 210 is communicated with the gas-liquid heat exchanger 280, and the other end of the liquid inlet pipe 210 is communicated with the liquid inlet D1 and the solution water tank 270 through the solution circulating pump 230, so as to transport the dehumidifying solution 800 in the solution water tank 270 to the gas-liquid heat exchanger 280 under the action of the solution circulating pump 230. For the embodiment having the air supply unit 500, the air-liquid heat exchanger 280 is disposed adjacent to the air supply unit 500.

The dehumidifying packing structure 250 is disposed adjacent to the air filtering unit 100, that is, the dehumidifying packing structure 250 is located at the other side of the air inlet direction of the air filtering unit 100, so that the dehumidifying treatment is performed at the dehumidifying packing structure 250 after the outside air is filtered by the air filtering unit 100. The solution distributor 240 is disposed above the dehumidifying packing structure 250, and the solution distributor 240 is configured to spray the dehumidifying solution 800 on the dehumidifying packing structure 250, or may also apply the dehumidifying solution 800 by spraying or dropping; the dehumidifying function of the dehumidifying solution 800 can be referred to a conventional technology and will not be described herein.

The dehumidifying packing structure 250 is disposed above the liquid collecting tray 260, the liquid collecting tray 260 is configured to collect the dehumidifying solution 800 obtained by dehumidifying the air by the dehumidifying packing structure 250 and deliver the dehumidifying solution 800 to the solution water tank 270, at this time, the dehumidifying solution 800 absorbs moisture and has a reduced concentration, and if the concentration is reduced to a certain degree, the dehumidifying capacity of the air is reduced, so when the concentration is reduced, for example, when the concentration is lower than a certain threshold value, the solution concentrating and regenerating unit 400 is required to concentrate the dehumidifying solution 800 obtained by dehumidifying the air, and to remove the moisture, so that the dehumidifying solution 800 can be regenerated and reused.

In this embodiment, the solution dehumidifying unit 200 further includes a solution circulating pump 230, and the solution circulating pump 230 is communicated with the liquid inlet pipe 210, so as to pump the dehumidifying solution 800 into the liquid inlet pipe 210 and deliver the dehumidifying solution to the gas-liquid heat exchanger 280, the liquid outlet pipe 220 and the solution distributor 240. Further, the liquid inlet pipe 210 is also communicated with the solution water tank 270. Therefore, when the concentration of the dehumidifying solution 800 is not greatly reduced and the dehumidifying solution 800 can be reused, for example, when the air humidity of the use environment is low, the solution circulating pump 230 directly pumps the dehumidifying solution 800 from the solution water tank 270 into the liquid inlet pipeline 210 and the gas-liquid heat exchanger 280, and the like, and at this time, the solution concentrating and regenerating unit 400 is not required to work, which is beneficial to saving energy consumption.

Further, in one embodiment, the solution tank 270 is provided with a sensing level 271, and the throttle valve 430 is further configured to automatically close when the dehumidification solution 800 in the solution tank 270 is lower than the sensing level 271. Further, referring to fig. 4 and 6, the throttle valve 430 is further connected to the detecting member 272 in the solution tank 270 through a conducting wire 273, and is configured to automatically open to deliver the dehumidifying solution 800 in the solution tank 270 into the evaporator 440 when the dehumidifying solution 800 in the solution tank 270 accumulates to a predetermined position. In one embodiment, the sensing element 272 is implemented as a resistive touch sensor. Such a design is advantageous to prevent the solution tank 270 from overflowing, thereby ensuring the safety of the solution tank 270.

In one embodiment, as shown in fig. 5, the evaporative cooling unit 300 includes an air conditioner water return pipe 310, an air conditioner water supply pipe 320, an evaporative water distributor 340, an evaporative packing structure 350, a water collection tray 360, an air conditioner cooling water tank 370 and a water replenishment valve 380; the air conditioner water return pipeline 310 is communicated with the evaporation water distributor 340, and the air conditioner water supply pipeline 320 is communicated with the air conditioner cooling water tank 370; the evaporation filler structure 350 is disposed between the dehumidification filler structure 250 and the gas-liquid heat exchanger 280 and located in the dehumidified air, the evaporation water distributor 340 is disposed above the evaporation filler structure 350, the evaporation water distributor 340 is configured to spray the air-conditioning circulating water 900 onto the evaporation filler structure 350, and the air-conditioning circulating water 900 may also be applied by spraying or dropping; application methods include, but are not limited to, dripping, slow flow, spraying, and the like. In this embodiment, the evaporative cooling unit 300 further includes an air-conditioning cooling water circulation pump 330, the air-conditioning water return pipe 310 is communicated with the evaporative water distributor 340 through the air-conditioning cooling water circulation pump 330, and the air-conditioning cooling water circulation pump 330 is configured to pump the used cold water into the evaporative water distributor 340 through the air-conditioning water return pipe 310 to be recycled as circulating water. The air conditioner water return pipe 310 is provided with a water inlet S1 to communicate with an external water inlet pipe, and the air conditioner water supply pipe 320 is provided with a water outlet S2 to communicate with an external water outlet pipe.

The evaporation filler structure 350 is located above the water collecting tray 360, and the water collecting tray 360 is configured to collect cold water in the evaporation filler structure 350 that is cooled by evaporation with the dehumidified air, that is, cold water that flows out of the evaporation filler structure 350 and is cooled by evaporation with the air passing through the solution dehumidification unit 200, and deliver the cold water to the air-conditioning cooling water tank 370; namely, the air-conditioning circulating water 900 is adopted to match with the dehumidified air, the circulating water is cooled in an evaporation mode to obtain cold water, and the cold water is conveyed to the air-conditioning cooling water tank 370; the water replenishing valve 380 is respectively communicated with the air-conditioning cooling water tank 370 and an external water pipe, and is used for replenishing the air-conditioning circulating water 900. Due to evaporation losses, it is necessary to replenish the air conditioning circulating water 900. Further, the air-conditioning cooling water tank 370 is provided with a water replenishing level 371, and the water replenishing valve 380 is also used for automatically opening when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is lower than the water replenishing level 371 in the air-conditioning cooling water tank 370; the automatic opening includes automatically opening for a specific time period and automatically opening until the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is higher than a specific water level. Such design is favorable to automatic water supply, avoids extravagant manpower.

Further, in one embodiment, as shown in FIG. 6, the evaporative filler structure 350 is disposed adjacent to the desiccant filler structure 250; the evaporation filler structure 350 is disposed between the gas-liquid heat exchanger 280 and the dehumidification filler structure 250, and the air supply unit 500 is disposed adjacent to the gas-liquid heat exchanger 280. Due to the design, the dehumidification solution 800 with high temperature is beneficial to forming an air environment with higher temperature, and the evaporation effect of the evaporation filler structure 350 is improved.

In one embodiment, as shown in fig. 7, the solution dehumidification evaporative water chiller further comprises a housing 600; the air filtering unit 100 is arranged at an air inlet of the casing 600, and an air supply position of the air supply unit 500 is arranged at an air outlet of the casing 600; the solution dehumidifying unit 200 is disposed in the case 600; the evaporative cooling unit 300 is at least partially disposed within the housing 600; the solution concentrating and regenerating unit 400 is at least partially disposed outside the casing 600 or the solution concentrating and regenerating unit 400 is at least partially disposed inside the casing 600. When the solution dehumidification evaporative water chiller is installed in a specific environment, for example, a certain sealed space is provided for the solution dehumidification unit 200, the evaporative cooling unit 300, and the air supply unit 500 to deliver the air filtered by the air filter unit 100, the housing 600 may be omitted; when a complete product is formed instead of a solution, the housing 600 may be adopted to form a relatively independent partial structure, and the input and output of the dehumidification solution 800 and the air conditioning circulating water 900 are realized by matching with pipes, and the solution concentration and regeneration unit 400 may be wholly or partially disposed outside the housing 600 and communicated with the solution dehumidification unit 200 through the recovery pipe 410 and the regeneration pipe 420. The pipelines comprise a liquid inlet pipeline 210, a liquid outlet pipeline 220, an air conditioner water return pipeline 310, an air conditioner water supply pipeline 320, a recovery pipeline 410, a regeneration pipeline 420 and the like.

In one embodiment, as shown in fig. 8, the solution dehumidification evaporative water chiller further comprises a housing 600; the air supply unit 500, the gas-liquid heat exchanger 280, the dehumidifying packing structure 250, the liquid collecting tray 260, the solution water tank 270, the evaporating packing structure 350, the water collecting tray 360 and the air-conditioning cooling water tank 370 are all disposed in the casing 600; the liquid inlet pipeline 210 and the liquid outlet pipeline 220 are at least partially arranged in the shell 600; the recycling pipeline 410, the regenerating pipeline 420, the air-conditioning water returning pipeline 310 and the air-conditioning water supplying pipeline 320 are partially arranged in the casing 600; the air filtering unit 100 is disposed at an air inlet F1 of the housing 600, and an air supply position of the air supply unit 500 is disposed at an air outlet F2 of the housing 600. Further, the solution distributor 240, the evaporation distributor 340, the water replenishing valve 380 and/or the solution circulating pump 230 are also disposed in the housing 600.

In order to realize automatic control, in one embodiment, the solution dehumidification evaporation water chiller further comprises a control unit; the control unit is connected to the vacuum pump 480, and the control unit is configured to control the concentration of the dehumidification solution 800 in the inner cavity 442 and the solution water tank 270 by controlling a work load of the vacuum pump 480, so as to adjust the humidity of the air subjected to dehumidification processing to control the temperature of the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370. In one embodiment, the control unit is further connected to the throttle valve 430, the control unit is configured to automatically open the throttle valve 430 to deliver the dehumidifying solution 800 in the solution tank 270 into the evaporator 440 when the dehumidifying solution 800 in the solution tank 270 accumulates to a predetermined position, and automatically close the throttle valve 430 when the dehumidifying solution 800 in the solution tank 270 is lower than the sensing level 271 in the solution tank 270; and/or the control unit is connected with the water replenishing valve 380, and the control unit is used for automatically opening the water replenishing valve 380 when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is lower than the water replenishing level 371 in the air-conditioning cooling water tank 370, and automatically closing the water replenishing valve 380 when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is higher than a specific water level; and/or the control unit is further connected to the solution concentration circulating pump 470 of the solution concentration regeneration unit 400, and is configured to control the flow rate of the evaporated dehumidification solution 800 delivered to the solution dehumidification unit 200. In one embodiment, the control unit is further connected to the three-way valve 451 for adjusting the amount of steam entering the condensing structure 460 by controlling the three-way valve 451 provided on the steam pipe 481 of the solution concentration regeneration unit 400, thereby adjusting the temperature of the dehumidifying solution 800; and/or, the control unit is further connected to the solution circulating pump 230, and is configured to adjust the dehumidifying capacity or cooling capacity of the solution dehumidifying unit 200 for the ambient air by controlling the flow rate of the dehumidifying solution 800 in the solution dehumidifying unit 200; and/or the control unit is also connected with an air supply unit 500 of the solution dehumidification evaporation water chiller and is used for controlling the refrigerating capacity of the solution dehumidification evaporation water chiller; and/or the control unit is further connected to the solution concentration circulating pump 470 of the solution concentration regeneration unit 400, and is configured to control the flow rate of the evaporated dehumidification solution 800 delivered to the solution dehumidification unit 200. The control unit is further connected to the solution concentration circulating pump 470 for controlling the working state of the solution concentration regeneration unit 400 to deliver the evaporated dehumidifying solution 800 to the solution water tank 270. The design is beneficial to automatically controlling the solution dehumidification evaporation water chiller and accurately controlling the cold water with the required temperature, and the heat dissipation and cooling effects are ensured.

An embodiment of a specific application is given below, and a solution dehumidification evaporative water chiller uses a magnetic suspension vacuum pump or an air suspension vacuum pump to provide vacuum and a heat source to concentrate and regenerate the dehumidification solution 800, and the solution dehumidification evaporative water chiller can cool the air conditioning circulating water 900 of an air conditioner only by indirect evaporative cooling in a winter mode, when the indirect evaporative cooling does not reach a required water temperature, the solution dehumidification unit 200 is started to operate, and the external air entering the equipment is subjected to dehumidification treatment, and after the external air humidity is reduced, the dew point temperature is greatly reduced, and cold water at the required temperature can be obtained in the evaporative cooling process of the rear section. The solution dehumidification evaporative water cooler comprises an air filter screen, a solution dehumidification unit 200, an evaporative cooling unit 300, a solution concentration regeneration unit 400, a fan, a control unit, a shell 600 and a support frame 700; the solution dehumidifying unit 200 comprises a solution distributor 240, a dehumidifying packing structure 250, a liquid collecting tray 260, a solution water tank 270, a solution circulating pump 230 and a gas-liquid heat exchanger 280; the evaporative cooling unit 300 comprises an evaporative filler structure 350, an evaporative water distributor 340, a water collecting tray 360, an air-conditioning cooling water tank 370 and a water replenishing valve 380; the solution concentration regeneration unit 400 comprises a throttle valve 430, an evaporator 440, a vacuum pump 480, a condensing coil, a solution concentration circulation pump 470, the solution concentration regeneration unit 400 is placed on the support frame 700 outside the housing 600; the air filter screen is located the air intake F1 of casing 600, the fan is located the air outlet F2 of casing 600. In this embodiment, an air filter screen is used as the air filter unit 100, and a fan is used as the air supply unit 500. When the solution dehumidification evaporation water chiller works in the solution concentration regeneration unit 400, the outlet water temperature of the air-conditioning cooling water tank 370 of the solution dehumidification evaporation water chiller is adjusted by adjusting the working load of the vacuum pump 480; when the solution dehumidification unit 200 of the solution dehumidification evaporation cold water machine works, the solution water tank 270 of the solution dehumidification evaporation cold water machine adjusts the liquid level of the dehumidification solution 800 in the solution water tank 270 through the throttle valve 430.

In one embodiment, the solution dehumidification evaporative water chiller comprises an air filtering unit 100, a solution dehumidification unit 200, an evaporative cooling unit 300 and a solution concentration regeneration unit 400, when the solution dehumidification evaporative water chiller works, external air is filtered and purified through the air filtering unit 100, then is dehumidified through the solution dehumidification unit 200, and is cooled through the evaporative cooling unit 300 to air conditioning circulating water 900 of an air conditioner, so that cold water at a required temperature is obtained. When the solution concentration regeneration unit 400 works, the vacuum pump 480 rotates at a high speed to generate vacuum, water in the dehumidification solution 800 in the evaporator 440 is evaporated, water vapor enters the vacuum pump 480, the outgoing high-temperature water vapor is conveyed to the condensation structure 460 such as a condensation coil through the vapor pipe 481 to be condensed into water, and heat released in the condensation process is used for heating the dehumidification solution 800 in the evaporator 440; therefore, seamless butt joint of dew point type indirect evaporative cooling and solution dehumidification evaporative cooling can be achieved, for example, when the system is used in a data center, natural cold sources can be greatly utilized in winter and transition seasons, and a solution dehumidification evaporative mode can be utilized to cool air conditioner circulating water 900 of an air conditioner in summer, so that the cost can be greatly reduced, and the comprehensive energy efficiency is higher than that of a conventional chilled water system; and the design of the solution concentration regeneration unit 400 is beneficial to the regeneration and cyclic utilization of the dehumidification solution 800.

In each embodiment, the working modes of the solution dehumidification evaporation water chiller comprise a summer mode, a transition season mode and a winter mode; when the solution dehumidification evaporative water chiller operates in the summer mode, the solution dehumidification unit 200, the solution concentration regeneration unit 400 and the evaporative cooling unit 300 of the solution dehumidification evaporative water chiller simultaneously operate, and the solution dehumidification evaporative water chiller operates in the solution dehumidification evaporative cooling mode; when the winter mode is operated, the solution dehumidification unit 200 and the solution concentration regeneration unit 400 of the solution dehumidification evaporative water chiller do not work, only the evaporative cooling unit 300 works, and the solution dehumidification evaporative water chiller works in a direct evaporative cooling mode; when the transition season mode is operated, the solution dehumidification unit 200 and the evaporative cooling unit 300 of the solution dehumidification evaporative water chiller simultaneously operate, the solution concentration regeneration unit 400 does not operate, and the solution dehumidification evaporative water chiller operates in an indirect evaporative cooling mode. During the transition season mode of operation, the solution concentration regeneration unit 400 may also be operated intermittently, depending on demand and actual conditions.

Other embodiments of the present application include a solution dehumidification evaporative water chiller and a solution dehumidification air conditioner, which are capable of being implemented by combining technical features of the above embodiments.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present application shall be subject to the appended claims.

Claims

1. The solution dehumidification evaporative water chiller is characterized by comprising a solution dehumidification unit (200), an evaporative cooling unit (300) and a solution concentration regeneration unit (400);

the solution dehumidification unit (200) is used for dehumidifying the ambient air entering the solution dehumidification evaporation water chiller in a solution dehumidification mode;

the evaporative cooling unit (300) is used for cooling the air conditioner circulating water (900) in an evaporative cooling mode to obtain cold water;

the solution concentration and regeneration unit (400) is used for concentrating the dehumidifying solution (800) of the solution dehumidifying unit (200) with reduced concentration after air dehumidifying treatment, and then conveying the dehumidifying solution to the solution dehumidifying unit (200) for recycling.

2. The solution dehumidification evaporative water chiller according to claim 1, further comprising an air filtering unit (100) and an air supply unit (500), wherein the air filtering unit (100) is used for filtering air entering the inside of the solution dehumidification evaporative water chiller; the air supply unit (500) is used for sending out air which sequentially passes through the air filtering unit (100), the solution dehumidifying unit (200) and the evaporative cooling unit (300).

3. The solution dehumidifying evaporation-cold water machine as claimed in claim 1, wherein the solution dehumidifying unit (200) comprises a solution circulating pump (230), a solution distributor (240), a dehumidifying packing structure (250), a liquid collecting tray (260), a solution water tank (270) and a gas-liquid heat exchanger (280);

the solution circulating pump (230) is communicated with the gas-liquid heat exchanger (280) through a liquid inlet pipeline (210), the gas-liquid heat exchanger (280) is communicated with the solution distributor (240) through a liquid outlet pipeline (220), and the liquid inlet pipeline (210) is also communicated with the solution water tank (270) and the solution circulating pump (230);

the dehumidifying filling structure (250) is arranged adjacent to an air inlet of the solution dehumidifying evaporation water chiller or an air filtering unit (100), the solution distributor (240) is arranged above the dehumidifying filling structure (250), and the solution distributor (240) is used for distributing and spraying the dehumidifying solution (800) to the dehumidifying filling structure (250);

the dehumidifying filler structure (250) is arranged above the liquid collecting tray (260), and the liquid collecting tray (260) is used for collecting the dehumidifying solution (800) which is subjected to dehumidifying treatment on air in the dehumidifying filler structure (250) and conveying the dehumidifying solution to the solution water tank (270).

4. The solution dehumidification evaporative water chiller according to claim 1, wherein the evaporative cooling unit (300) comprises an air conditioner water return pipe (310), an air conditioner water supply pipe (320), an evaporative water distributor (340), an evaporative packing structure (350), a water collection tray (360), an air conditioner cooling water tank (370) and a water replenishment valve (380);

the air conditioner water return pipeline (310) is communicated with the evaporation water distributor (340), and the air conditioner water supply pipeline (320) is communicated with the air conditioner cooling water tank (370);

the evaporation packing structure (350) is arranged between the dehumidification packing structure (250) of the solution dehumidification unit (200) and the gas-liquid heat exchanger (280), the evaporation water distributor (340) is arranged above the evaporation packing structure (350), and the evaporation water distributor (340) is used for distributing the air-conditioning circulating water (900) to the evaporation packing structure (350);

the evaporation filler structure (350) is positioned above the water collecting tray (360), and the water collecting tray (360) is used for collecting cold water which flows out of the evaporation filler structure (350) and is cooled by the air passing through the solution dehumidification unit (200) in an evaporation cooling mode and conveying the cold water to the air-conditioning cooling water tank (370);

the water supplementing valve (380) is respectively communicated with the air-conditioning cooling water tank (370) and an external water pipe and is used for supplementing the air-conditioning circulating water (900).

5. The solution dehumidifying evaporative water cooler of claim 1, wherein the solution concentrating and regenerating unit (400) includes a recovery pipe (410), a regeneration pipe (420), an evaporator (440), a vacuum pump (480), a condensing structure (460), a solution concentrating circulation pump (470), and a condensation water tank (490);

two ends or an inlet and an outlet of the recovery pipeline (410) are respectively communicated with a solution water tank (270) and the evaporator (440) of the solution dehumidifying unit (200);

the regeneration pipeline (420) is communicated with a liquid inlet pipeline (210) and a solution circulating pump (230) of the solution dehumidifying unit (200), and is also communicated with the solution concentration circulating pump (470) and the evaporator (440);

the vacuum pump (480) is communicated with the evaporator (440) and the condensing structure (460) through a vapor pipe (481) and a three-way valve (451);

the heat exchange coil part of the condensation structure (460) is arranged in the inner cavity (442) of the evaporator (440) to contact the dehumidifying solution (800) in the inner cavity (442), steam generated after part of moisture in the dehumidifying solution (800) is evaporated passes through the vacuum pump (480) and then enters the condensation structure (460), and generated condensed water flows into the condensed water tank (490);

after the dehumidification solution (800) in the inner cavity (442) loses the partial moisture, the dehumidification solution enters the liquid inlet pipeline (210) through the regeneration pipeline (420) under the action of the solution concentration circulating pump (470).

6. The solution dehumidifying evaporative water cooler of claim 5, wherein the solution concentrating and regenerating unit (400) further comprises a throttle valve (430), and the dehumidified solution (800) in the solution water tank (270) after dehumidifying air enters the evaporator (440) after passing through the recovery pipe (410) and the throttle valve (430); and/or;

the vacuum pump (480) is a magnetic suspension vacuum pump or a gas suspension vacuum pump; and/or;

the solution dehumidification evaporation water chiller further comprises a support frame (700), and the evaporator (440) is arranged on the support frame (700); and/or;

the solution dehumidification evaporative water chiller further comprises a control unit connected with the vacuum pump (480), and the control unit is used for controlling the concentration of the dehumidification solution (800) in the inner cavity (442) and the solution water tank (270) by controlling the working load of the vacuum pump (480), so that the humidity of the air subjected to dehumidification treatment is adjusted to control the temperature of the air-conditioning circulating water (900) in the air-conditioning cooling water tank (370) of the evaporative cooling unit (300).

7. The solution dehumidifying evaporative water cooler of claim 6, wherein the control unit is further connected to the throttle valve (430), and/or,

the control unit is further connected with a water replenishing valve (380) of the evaporative cooling unit (300), and/or the control unit is further connected with the three-way valve (451), and/or the control unit is further connected with the solution circulating pump (230), and/or the control unit is further connected with an air supply unit (500) of the solution dehumidifying evaporative water cooler, and/or the control unit is further connected with a solution concentrating circulating pump (470) of the solution concentrating and regenerating unit (400).

8. The solution dehumidification evaporative water chiller according to claim 5, further comprising an air filtration unit (100), an air supply unit (500) and a housing (600);

the air supply unit (500), the gas-liquid heat exchanger (280), the dehumidifying packing structure (250), the liquid collecting tray (260) and the solution water tank (270) of the solution dehumidifying unit (200), and the evaporating packing structure (350), the water collecting tray (360) and the air-conditioning cooling water tank (370) of the evaporative cooling unit (300) are all arranged in the shell (600);

the liquid inlet pipeline (210) and the liquid outlet pipeline (220) of the solution dehumidifying unit (200) are at least partially arranged in the shell (600);

a recovery pipeline (410) and the regeneration pipeline (420) of the solution concentration regeneration unit (400), and an air-conditioning water return pipeline (310) and an air-conditioning water supply pipeline (320) of the evaporative cooling unit (300) are partially arranged in the shell (600);

the air filter unit (100) is arranged at an air inlet of the shell (600), and an air supply position of the air supply unit (500) is arranged at an air outlet of the shell (600).

9. The solution dehumidification evaporative water chiller according to any one of claims 1 to 8, wherein the evaporative cooling unit (300) operates in a cross-flow mode, the solution dehumidification unit (200) operates in a counter-flow mode or a cross-flow mode, and the gas-liquid heat exchanger (280) of the solution dehumidification unit (200) operates in a cross-flow mode.