CN116734347A

CN116734347A - Solution dehumidification evaporation cold water machine and solution dehumidification air conditioner

Info

Publication number: CN116734347A
Application number: CN202210196734.6A
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: 2023-09-12

Abstract

The application relates to a solution dehumidifying and evaporating water chiller and a solution dehumidifying and air-conditioning device, which comprise a solution dehumidifying unit, an evaporating and cooling unit and a solution concentrating and regenerating unit; the solution dehumidifying unit dehumidifies the ambient air entering the solution dehumidifying and evaporating cold water machine in a solution dehumidifying mode; the evaporative cooling unit is used for cooling the air-conditioning circulating water in an evaporative cooling mode to obtain cold water; the solution concentration regeneration unit is used for concentrating the dehumidified solution with the concentration reduced after the air dehumidification treatment of the solution dehumidification unit, and then conveying the concentrated dehumidified solution to the solution dehumidification unit for recycling. The solution concentration regeneration unit repeatedly utilizes the dehumidified solution, so that the effect of dehumidifying, evaporating and outputting cold water by the solution combined by solution dehumidification and indirect evaporative cooling is realized, on one hand, the humidity of the entering air is reduced, and the dew point is reduced, and the evaporative cooling effect is further indirectly improved; on the other hand, the dehumidifying solution can be recycled, and the whole solution dehumidifying and evaporating water chiller can only supplement circulating water, so that the dehumidifying and evaporating water chiller is convenient and easy to use and is simple to maintain.

Description

Solution dehumidification evaporation cold water machine and solution dehumidification air conditioner

Technical Field

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

Background

Evaporative cooling is a natural cooling mode using dry air energy of ambient air, wherein dew point (dew temperature) indirect evaporative cooling is a process of performing heat transfer and mass transfer by using air and water contact in one space of a heat exchanger isolated from each other to generate cold air and cold water, performing sensible heat exchange with the ambient air in the other space of the heat exchanger through a heat exchanger wall, and then performing direct evaporation on the surface of a filler 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 a dry area such as northwest China, but mechanical compression refrigeration is still needed in summer in other areas so as to meet the temperature requirement of IT equipment of the data center. When the temperature and humidity of the ambient air are higher, the dew point can be reduced and the water outlet temperature of indirect evaporative cooling can be reduced by dehumidifying and drying the air, so that the data center IT equipment can be cooled in summer by utilizing the evaporative cooling mode.

The dehumidifying solution is used for dehumidifying air, the dew point temperature of the air is reduced, and then the air is evaporated and cooled, so that cold water with the required temperature can be obtained. The current research and development of the equipment is concentrated on the air side, solar energy or a heat pump is used for concentrating and reducing the dehumidifying solution, and because the temperature required by concentration is higher, the heat energy utilization efficiency is lower, the whole machine efficiency has no obvious advantage compared with the traditional air conditioning equipment, and the equipment is huge and has high investment and maintenance cost.

The solution dehumidifying technology is to concentrate dehumidifying solution by using low-cost heat sources including solar energy, heat pump, waste heat and the like, dehumidify air and cool air by evaporation, and is the development direction of future air conditioners, the technology is not mature at present, mainly the development of solar air conditioners and heat pump solution dehumidifying air conditioners is mainly performed, and the waste heat can be utilized, so that the actual measured energy efficiency of a model machine developed in the prior stage is higher than that of the traditional air conditioners under the same working condition, but the model machine is a product for directly treating the air, and the equipment is huge in volume and low in treatment capacity.

Disclosure of Invention

Based on this, it is necessary to provide a solution dehumidifying evaporative water chiller and a solution dehumidifying air conditioner.

A solution dehumidifying and evaporating water chiller comprises a solution dehumidifying unit, an evaporating and cooling unit and a solution concentrating and regenerating unit;

the solution dehumidifying unit is used for dehumidifying the ambient air entering the solution dehumidifying and evaporating cold water machine in a solution dehumidifying mode;

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

the solution concentration regeneration unit is used for concentrating the dehumidified solution with the concentration reduced after the air dehumidification treatment of the solution dehumidification unit, and then conveying the concentrated dehumidified solution to the solution dehumidification unit for recycling.

According to the solution dehumidifying and evaporating cold water machine, the dehumidifying solution is recycled through the solution concentrating and regenerating unit, so that the solution dehumidifying and evaporating and outputting cold water effect combined by solution dehumidifying and indirect evaporating and cooling is realized, on one hand, the humidity of the entering air is reduced, the dew point is reduced, and the evaporating and cooling effect is further indirectly improved; on the other hand, the dehumidifying solution can be recycled, and the whole solution dehumidifying and evaporating water chiller only needs to supplement circulating water, so that the dehumidifying and evaporating water chiller is convenient and easy to use and is 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 structure of the product, and the processing capacity is greatly improved.

Further, in one embodiment, the solution dehumidifying and evaporating water chiller further includes an air filtering unit for filtering air entering the solution dehumidifying and evaporating water chiller, i.e. ambient air.

Further, in one embodiment, the solution dehumidifying and evaporating water chiller further includes an air supply unit, where the air supply unit is configured to send out air cooled by the circulating water in an evaporating manner.

In one embodiment, the solution dehumidifying and evaporating 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 dehumidifying and evaporating 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 distributor, a dehumidifying filler structure, a liquid collecting disc, 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 filler structure is arranged adjacent to an air inlet or an air filtering unit of the solution dehumidifying and evaporating water chiller, the solution distributor is arranged above the dehumidifying filler structure, and the solution distributor is used for distributing the dehumidifying solution to the dehumidifying filler structure;

the dehumidifying filler structure is arranged above the liquid collecting disc, and the liquid collecting disc is used for collecting the dehumidifying solution subjected to the dehumidifying treatment on the 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 disc, 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 distributing the air conditioner circulating water to the evaporation filler structure;

the evaporation filler structure is positioned above the water collecting disc, and the water collecting disc is used for collecting cold water which flows out of the evaporation filler structure and is cooled with air passing through the solution dehumidifying unit in an evaporation cooling mode and then is conveyed to the air conditioner cooling water tank;

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

In one embodiment, the solution concentration and 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;

the two ends or the inlet and the 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 of the solution dehumidifying unit and a solution circulating pump, and is also communicated with the solution concentrating circulating pump and the evaporator;

The vacuum pump is communicated with the evaporator and the condensing structure through a vapor pipe and a three-way valve;

the heat exchange coil part of the condensing structure is arranged in the inner cavity of the evaporator so as to be in contact with the dehumidifying solution in the inner cavity, steam generated after part of moisture in the dehumidifying solution is evaporated enters the condensing structure through the rear part of the vacuum pump, and the generated condensed water flows into the condensing water tank;

after the partial moisture of the dehumidification solution in the inner cavity is lost, the dehumidification solution enters the liquid inlet pipeline through the regeneration pipeline under the action of the solution concentration circulating pump.

In one embodiment, the solution concentrating and regenerating unit further comprises a throttle valve, and the dehumidified solution in the solution tank after the air is dehumidified 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 an air suspension vacuum pump; and/or;

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

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

In one embodiment, the control unit is further connected to the throttle valve, and is configured to automatically open the throttle valve to deliver the dehumidified solution in the solution tank into the evaporator when the dehumidified solution in the solution tank is accumulated to a predetermined position, and to automatically close the throttle valve when the dehumidified solution in the solution tank is lower than a sensing position in the solution tank; and/or the number of the groups of groups,

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

the control unit is also connected with the three-way valve and is used for adjusting the steam quantity entering the condensation structure by controlling the three-way valve arranged on the steam pipe of the solution concentration regeneration unit so as to adjust the temperature of the dehumidification solution; and/or the number of the groups of groups,

the control unit is also connected with the solution circulating pump and is used for adjusting the dehumidifying capacity or the cooling capacity of the solution dehumidifying unit on the ambient air by controlling the flow of the dehumidifying solution in the solution dehumidifying unit; and/or the number of the groups of groups,

The control unit is also connected with an air supply unit of the solution dehumidifying and evaporating water chiller and is used for controlling the refrigerating capacity of the solution dehumidifying and evaporating water chiller; and/or the number of the groups of groups,

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 rate of the evaporated dehumidification solution to be conveyed to the solution dehumidification unit.

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

the air supply unit is characterized in that the gas-liquid heat exchanger, the dehumidifying filler structure, the liquid collecting disc and the solution water tank of the solution dehumidifying unit, and the evaporating filler structure, the water collecting disc and the air conditioner cooling water tank of the evaporating 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;

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

the air filter 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 gas-liquid heat exchanger of the solution dehumidification unit operates in a cross-flow mode.

In one embodiment, a solution dehumidifying air conditioner includes an air conditioning assembly and any one of the solution dehumidifying evaporative coolers, cold water obtained by the evaporative cooling unit is delivered to the air conditioning assembly, and the evaporative cooling unit recovers water from the air conditioning assembly as the circulating water.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments or the conventional techniques of the present application, the drawings required for the descriptions of the embodiments or the conventional techniques will be briefly described below, and it is apparent that the drawings in the following descriptions are only some embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort for those skilled in the art.

Fig. 1 is a schematic structural diagram of an embodiment of a solution dehumidifying and evaporating chiller according to the present application.

Fig. 2 is a schematic structural diagram of an embodiment of the solution concentrating and regenerating unit according to the present application.

Fig. 3 is a schematic structural view of an embodiment of the solution concentrating and regenerating unit and the supporting frame according to the present application.

Fig. 4 is a schematic structural diagram of an embodiment of a solution dehumidifying 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 dehumidifying and evaporating chiller according to the present application.

Fig. 7 is a schematic structural diagram of another embodiment of the solution dehumidifying and evaporating chiller according to the present application.

Fig. 8 is a schematic view of a portion of the embodiment shown in fig. 7.

Fig. 9 is a schematic diagram of the evaporative packing structure of the evaporative cooling unit of the present application operating in a cross-flow mode.

Fig. 10 is a schematic diagram of a dehumidifying packing structure of a solution dehumidifying unit according to the present application operating in a cross-flow mode.

FIG. 11 is a schematic diagram of the desiccant packing structure of the solution dehumidification unit of the present disclosure operating in a counter-current mode.

Fig. 12 is a schematic diagram of a gas-liquid heat exchanger of a solution dehumidifying unit according to the present application operating in a cross-flow mode.

Reference numerals:

the air conditioner 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;

A liquid inlet pipe 210, a liquid outlet pipe 220, a solution circulating pump 230, a solution distributor 240, a dehumidifying filler structure 250, a liquid collecting disc 260, a solution tank 270, a sensing position 271, a detecting part 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 disc 360, an air conditioner cooling water tank 370, a water supplementing level 371, a water supplementing valve 380, a water inlet S1 and a water outlet S2;

the recovery pipe 410, the regeneration pipe 420, the throttle valve 430, the evaporator 440, the output end 441, the inner cavity 442, the vacuum pump 480, the three-way valve 451, the condensation structure 460, the solution concentration circulation pump 470, the demister 450, the vapor tube 481, the condensation water tank 490, and the drain 491.

Detailed Description

In order that the above objects, features and advantages of the application will be readily understood, a more particular description of the application will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. The present application may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the application, whereby the application is not limited to the specific embodiments disclosed below.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When a component is considered to be "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 are used in the description of the present application for the purpose of illustration only and do not represent the only embodiment.

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

In the present application, unless expressly stated or limited otherwise, a first feature "up" or "down" on a second feature may be 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 through intermedial media. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely under the second feature, or simply indicating that the first feature is less level than the second feature.

Unless defined otherwise, all technical and scientific terms used in the specification of the present application 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 application herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used in the description of the present application includes any and all combinations of one or more of the associated listed items.

The application discloses a solution dehumidifying and evaporating water chiller, which comprises a part of or all of the structures of the following embodiments; namely, the solution dehumidifying and evaporating water chiller comprises part or all of the following technical features. In one embodiment of the application, a solution dehumidifying and evaporating cold water machine comprises a solution dehumidifying unit, an evaporating and cooling unit and a solution concentrating and regenerating unit; the solution dehumidifying unit is used for dehumidifying the ambient air entering the solution dehumidifying and evaporating cold water machine in a solution dehumidifying mode; the evaporative cooling unit is used for cooling the circulating water of the air conditioner in an evaporative cooling mode to obtain cold water; the solution concentration regeneration unit is used for concentrating the dehumidified solution with the concentration reduced after the air dehumidification treatment of the solution dehumidification unit, and then conveying the concentrated dehumidified solution to the solution dehumidification unit for recycling. According to the solution dehumidifying and evaporating cold water machine, the dehumidifying solution is recycled through the solution concentrating and regenerating unit, so that the solution dehumidifying and evaporating and outputting cold water effect combined by solution dehumidifying and indirect evaporating and cooling is realized, on one hand, the humidity of the entering air is reduced, the dew point is reduced, and the evaporating and cooling effect is further indirectly improved; on the other hand, the dehumidifying solution can be recycled, and the whole solution dehumidifying and evaporating water chiller only needs to supplement circulating water, so that the dehumidifying and evaporating water chiller is convenient and easy to use and is 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 structure of the product, and the processing capacity is greatly improved.

Further, in one embodiment, the solution dehumidifying and evaporating water chiller further includes an air filtering unit for filtering air entering the solution dehumidifying and evaporating water chiller, i.e. ambient air. In one embodiment, as shown in fig. 1, a solution dehumidifying evaporative water chiller includes an air filtration unit 100, a solution dehumidifying unit 200, an evaporative cooling unit 300, a solution concentrating and regenerating unit 400 and an air supply unit 500; the air filtering unit 100 is used for filtering air entering the solution dehumidifying and evaporating water chiller; the solution dehumidifying unit 200 is configured to dehumidify ambient air entering the solution dehumidifying evaporative water chiller in a solution dehumidifying manner; the evaporative cooling unit 300 is configured to cool the air-conditioning circulating water 900 by adopting an evaporative cooling manner to obtain cold water; the solution concentration regeneration unit 400 is configured to concentrate the dehumidified solution 800 with reduced concentration after the air dehumidifying treatment of the solution dehumidifying unit 200, and then convey the concentrated dehumidified solution to the solution dehumidifying unit 200 for recycling; the air supply unit 500 is configured to supply air sequentially passing through the air filter unit 100, the solution dehumidifying unit 200, and the evaporative cooling unit 300. The air supply unit 500 supplies air to the outside at the air outlet F2, so that the external air enters the solution dehumidifying and evaporating water chiller from the air inlet F1 through the air filtering unit 100 and reaches the solution dehumidifying unit 200. In this embodiment, the solution dehumidifying and evaporating chiller further includes an air supply unit 500, where the air supply unit 500 is configured to send out air cooled by the air conditioning circulating water 900 in an evaporating manner. In each embodiment, the air inlet F1 and the air outlet F2 may be integrated in the installation environment, or may be configured as separate structural members, or may be integrally disposed on other structures, such as a housing. Further, in one embodiment, the solution dehumidifying and evaporating cold water machine further includes an air intake structure for sending external air to the air filtering unit 100, and entering the solution dehumidifying and evaporating cold water machine through the air filtering unit 100 to reach the solution dehumidifying unit 200. The design is favorable for improving the air quantity of the inlet air in a hot environment, and is favorable for improving the evaporative cooling effect of the evaporative cooling unit 300 after being matched with the solution dehumidifying unit 200 and the solution concentrating and regenerating unit 400 for dehumidifying and removing water; especially for the data center, because the IT equipment during operation, the air outlet temperature is higher, because the available natural cold source time is also longer, so the solution dehumidification evaporation chiller can exert ITs advantage more when the high temperature region is operated, is favorable to using as solution dehumidification air conditioner.

The air filtering unit 100 is configured to filter air entering the solution dehumidifying and evaporating water chiller, that is, air entering the solution dehumidifying and evaporating water chiller is filtered by the air filtering unit 100; in one embodiment, the air filter unit 100 is an air filter or a structural member containing the air filter, etc. In one embodiment, the solution dehumidifying and evaporating water chiller further includes an air supply unit 500, the air supply unit 500 is configured to supply air after cooling the air-conditioning circulating water 900 in an evaporating manner, that is, the air supply unit 500 is configured to supply air after preparing cold water, specifically, cool water and high humidity air after cooling the air-conditioning circulating water 900 in an evaporating manner, and the air supply unit 500 supplies 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 dehumidifying evaporative water chiller to dehumidify the solution dehumidifying unit 200 is increased.

The solution dehumidifying unit 200 is configured to dehumidify the air filtered in the air filtering unit 100 using the dehumidifying solution 800; and the filtered air entering the solution dehumidifying and evaporating water chiller is dehumidified. In one embodiment, the dehumidifying solution 800 may be a solution using existing 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 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 cool 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 with a desired temperature; namely, evaporating and cooling the air conditioner circulating water 900 to obtain cooling water for output, and adopting the cooling water to externally cool; because the specific heat capacity of water is far greater than that of air, for example, in a standard state, the specific heat capacity of water is 4200 joules per kilogram of celsius, and the specific heat capacity of air is 1400 joules per kilogram of celsius, the heat dissipation and cooling combined with the conduction heat dissipation mode has better cooling effect compared with the air conditioning mode.

The solution concentration and regeneration unit 400 is configured to concentrate the dehumidified solution 800 after the air dehumidification treatment, and convey the concentrated solution to the solution dehumidification unit 200 for recycling; the solution concentrating and regenerating unit 400 is the key point of the present application, and the solution dehumidifying and evaporating cold water machine in each embodiment of the present application only needs to supplement the circulating water 900 of the air conditioner in the use process, and because of the smart design of the solution concentrating and regenerating unit 400, the dehumidified solution 800 after the air dehumidifying treatment is concentrated to reduce the moisture in the solution, and the concentration of the dehumidified solution 800 is recovered, and the concentration is controllable, especially the concentration of the dehumidified solution 800 can be accurately controlled by matching with a vacuum pump; the concentration of the dehumidifying solution 800 can be controlled by the solution concentrating and regenerating unit 400, so that the relative humidity of the air can be effectively adjusted by the dehumidifier, the dew point can be reduced, and the evaporative cooling effect can be finally improved, namely, the water outlet temperature of the air-conditioning circulating water 900 in the evaporative cooling unit 300 can be controlled, the dehumidifying solution can be recycled in the process, the whole solution dehumidifying and evaporating chiller can only need to supplement circulating water, and the dehumidifying and evaporating chiller is convenient and easy to use, and is simple to maintain and can be applied to various occasions needing cold water cooling, such as commercial buildings, data machine rooms and the like.

In one embodiment, the solution concentrating and regenerating unit 400 is shown in fig. 2, and includes a recovery pipe 410, a regenerating pipe 420, an evaporator 440, a vacuum pump 480, a condensing structure 460, a solution concentrating and circulating pump 470, and a condensing water tank 490; in this embodiment, the vacuum pump 480 is disposed outside the evaporator 440, the solution concentrating and regenerating unit 400 further includes a demister 450 connected to the vacuum pump 480, the demister 450 may be disposed inside the evaporator 440 or may be disposed outside the evaporator 440, and the demister 450, the vacuum pump 480 and the condensation structure 460 are sequentially connected through a vapor tube 481, in this embodiment, the demister 450 is disposed inside the evaporator 440. It is understood that a condensing structure 460, such as a condensing coil, and a demister 450 may be included as a component of the evaporator 440, i.e., the evaporator 440 may 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, and fig. 2 shows a flooded evaporator in the shell-and-tube heat exchanger, and a falling film evaporator in the shell-and-tube heat exchanger may also be used in practical applications, or a plate heat exchanger may also be used.

In this embodiment, the solution concentrating and regenerating unit 400 further includes a three-way valve 451 disposed between the vacuum pump 480 and the condensation 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 condensation structure 460, and a third end is connected to condensed water in the condensation water tank 490; the solution dehumidifying and evaporating chiller or the solution concentrating and regenerating unit 400 is configured to control the temperature and concentration of the dehumidified solution 800 in the inner cavity 442 of the evaporator 440 by controlling the communication state of the three-way valve 451, and the evaporated moisture of the dehumidified 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 that the inner cavity 442 is communicated with the external air through the three-way valve 451, the evaporated moisture of the dehumidifying solution 800 enters the condensate tank 490; the larger the valve of the three-way valve 451 is opened, the more moisture is released into the condensate 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 in direct communication with the outside air or drain line, such that the vaporized moisture of the desiccant solution 800 is directed into the outside air or drain line; further, in one embodiment, in combination with the embodiment having the 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 connection state and the connection ratio of the three-way valve 451, so as to control the concentration of the dehumidifying solution 800 in the inner cavity 442 and the solution tank 270, further adjust the humidity of the air subjected to the dehumidifying treatment according to the concentration of the dehumidifying solution 800, and finally control the outlet water temperature of the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 in an evaporating manner, and the other embodiments are not repeated. In other embodiments, the control module may also be connected to the three-way valve 451 and the vacuum pump 480, respectively. For embodiments having a demister 450, the three-way valve 451 is disposed between the demister 450 and the condensing structure 460. By such a design, the concentration of the dehumidifying solution 800 is controllable, so that the relative humidity of the air in the solution dehumidifying and evaporating chiller is controllable, thereby lowering the dew point, and further improving the effect of evaporative cooling, so that 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 circulation pump 230, a solution distributor 240, a dehumidifying packing structure 250, a drip pan 260, a solution tank 270 and a gas-liquid heat exchanger 280; the solution circulation 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 circulation pump 230; the dehumidifying filler structure 250 is disposed adjacent to the air inlet or the air filtering unit 100 of the solution dehumidifying evaporative water chiller, the solution distributor 240 is disposed above the dehumidifying filler structure 250, and the solution distributor 240 is configured to distribute the dehumidifying solution 800 to the dehumidifying filler structure 250; the dehumidifying filler structure 250 is disposed above the drip pan 260, and the drip pan 260 is used for collecting the dehumidifying solution 800 after the dehumidifying treatment on the air in the dehumidifying filler structure 250 and delivering the dehumidifying solution to the solution tank 270. In one embodiment, the recovery pipe 410 is respectively connected to the solution tank 270 and the evaporator 440 of the solution dehumidifying unit 200; that is, two ends or an inlet and an outlet of the recovery pipe 410 are respectively connected to the solution tank 270 and the evaporator 440 of the solution dehumidifying unit 200, for example, one end of the recovery pipe 410 is connected to the solution tank 270, and the other end is connected to the evaporator 440; the regeneration pipe 420 is connected to the liquid inlet pipe 210 and the solution circulation pump 230 of the solution dehumidifying unit 200, and is also connected to the solution concentration circulation 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 connected, and the regeneration pipe 420, the solution concentration circulation pump 470, and the evaporator 440 are sequentially connected. In this embodiment, the regeneration pipe 420 is connected to an output port 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 gas-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 is right angle with the water flow direction, and the countercurrent mode is that the air inlet direction is opposite to the water flow direction. In one embodiment, as shown in fig. 9, the evaporation packing structure 350 of the evaporation cooling unit 300 operates in a cross-flow mode, and the water flow direction F4 is at right angles to the air inlet 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, wherein the water flow direction F4 is at right angles to the air inlet direction F3; in one embodiment, as shown in fig. 11, the dehumidifying packing structure 250 of the solution dehumidifying unit 200 operates in a countercurrent mode, wherein the water flow direction F4 is opposite to the air inlet direction F3; in one embodiment, as shown in fig. 12, the gas-liquid heat exchanger 280 of the solution dehumidifying unit 200 operates in a cross-flow mode, and the water flow direction F4 is at right angles to the air inlet direction F3. The rest of the embodiments are analogized and will not be described in detail.

The vacuum pump 480 is disposed outside the inner cavity 442 of the evaporator 440, and the vacuum pump 480 is communicated with the condensation structure 460 through the vapor tube 481; in one embodiment, the vacuum pump 480 communicates the evaporator 440 and the condensing structure 460 through a vapor tube 481 and a three-way valve 451; for the embodiment with a demister 450, the demister 450 is sequentially connected to the vacuum pump 480 and the condensing structure 460 through a vapor tube 481; alternatively, the demister 450 is sequentially connected to the vacuum pump 480, the three-way valve 451, and the condensation structure 460 through a vapor pipe 481.

The condensation structure 460 is at least partially disposed in the inner cavity 442 of the evaporator 440 to contact the dehumidifying solution 800 in the evaporator 440, and a part of the moisture in the dehumidifying solution 800 enters the condensation structure 460 through the vacuum pump 480, and enters the condensation water tank 490 after being cooled; after losing part of the moisture, the dehumidified solution 800 in the inner cavity 442 of the evaporator 440 enters the liquid inlet pipe 210 through the regeneration pipe 420 by the solution concentration circulation pump 470. For embodiments having a demister 450, the moisture evaporated from the dehumidifying solution 800 in the cavity 442 sequentially passes through the vacuum pump 480 and the demister 450 into the condensing structure 460. Further, the condensing structure 460 includes a condensing duct, a condensing coil, and a condensing loop. The condensation structure 460 is used to drain a portion of the evaporated moisture in the dehumidified solution 800. Further, part of the moisture in the dehumidifying solution 800 enters the condensation structure 460 through the vacuum pump 480, and enters the condensation water tank 490 after being cooled, and at the same time, the dehumidifying solution 800 in the evaporator 440 is heated. By adopting the design, the evaporation energy is fully utilized, and part of the evaporation energy is returned into the evaporator 440 to heat the dehumidifying solution 800, so that energy waste and temperature rise of the external environment are avoided, the temperature of the dehumidifying solution 800 is improved, and the effect of reducing the relative humidity of air is improved; also, as described above, removing a portion of the moisture in the desiccant solution 800 by evaporation facilitates controlling the concentration of the desiccant solution 800, thereby controlling, for example, the relative humidity of the air, thereby controlling, for example, the dew point, and ultimately enhancing the evaporative cooling effect.

Further, the condensate tank 490 is provided with a drain port 491 for draining condensate through the drain port 491. Further, the drain port 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 drain pipe for delivering the drained condensed water into the air-conditioning cooling water tank 370. In such a design, the condensed water is directly conveyed into the air-conditioning cooling water tank 370 for recycling without externally draining water under the condition that the air humidity is proper, namely the relative humidity; in other embodiments, the condensed water may also be automatically delivered into 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 replenishment 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 water level, the excess condensed water is automatically discharged.

In one embodiment, as shown in fig. 2, the solution concentrating and regenerating unit 400 further includes a throttle valve 430, and the dehumidified solution 800 in the solution tank 270 after the air dehumidifying treatment enters the evaporator 440 after passing through the recovery pipe 410 and the throttle valve 430; in one embodiment, the vacuum pump 480 is a magnetic levitation vacuum pump or an air levitation vacuum pump; in one embodiment, the solution concentrating and regenerating unit 400 further includes a throttle valve 430, and the dehumidified solution 800 in the solution tank 270 after the air dehumidifying treatment passes through the recovery pipe 410 and the throttle valve 430 and then enters the evaporator 440; and the vacuum pump 480 is a magnetic levitation vacuum pump or an air levitation vacuum pump. The rest of the embodiments are analogized and will not be described in detail. Compared with solar energy or a heat pump, the concentration of the dehumidifying solution 800 is improved, namely, part of moisture in the dehumidifying solution is removed, the magnetic suspension vacuum pump or the air suspension vacuum pump has higher energy efficiency ratio, the energy efficiency of the solar energy or the heat pump can be more than 10 times in a test machine, the seamless butt joint of dew point type indirect evaporative cooling and solution dehumidifying 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 dehumidifying evaporative cooling machine further comprises 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 support members separately provided in consideration of cost. The use of the support frame 700 facilitates the positioning of the output 441 of the evaporator 440 at the bottom of the evaporator 440 to facilitate the output of the concentrated regenerated dehumidified 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 drip pan 260, a solution tank 270 and a gas-liquid heat exchanger 280; the regeneration pipe 420, the liquid inlet pipe 210, the gas-liquid heat exchanger 280, the liquid outlet pipe 220 and the solution distributor 240 are sequentially communicated, and the liquid inlet pipe 210 is also communicated with the solution water tank 270 and the solution circulating pump 230; referring to fig. 2, the regeneration pipe 420 is connected to the liquid inlet pipe 210 through a liquid inlet end D1, and the solution tank 270 is connected to the recovery pipe 410 through a liquid outlet end D2. In this embodiment, one end of the liquid inlet pipe 210 is connected to the gas-liquid heat exchanger 280, and the other end of the liquid inlet pipe 210 is connected to the liquid inlet end D1 and the solution tank 270 through the solution circulation pump 230, so as to convey the dehumidifying solution 800 in the solution tank 270 to the gas-liquid heat exchanger 280 under the action of the solution circulation pump 230. For embodiments having the blower unit 500, the gas-liquid heat exchanger 280 is disposed adjacent to the blower unit 500.

The dehumidifying filler structure 250 is disposed adjacent to the air filtering unit 100, that is, the dehumidifying filler structure 250 is disposed at the other side of the air inlet direction of the air filtering unit 100, so that the outside air is dehumidified at the dehumidifying filler structure 250 after being filtered by the air filtering unit 100. The solution distributor 240 is disposed above the dehumidifying filler structure 250, and the solution distributor 240 is configured to distribute the dehumidifying solution 800 to the dehumidifying filler structure 250, or apply the dehumidifying solution 800 in a spraying or dripping manner; the dehumidifying effect of the dehumidifying solution 800 can be omitted herein with reference to the conventional art.

The dehumidifying filler structure 250 is disposed above the drip pan 260, and the drip pan 260 is configured to collect the dehumidifying solution 800 after the dehumidifying filler structure 250 dehumidifies the air, and convey the dehumidifying solution to the solution 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 extent, the moisture absorption capacity of the air is reduced, so that when the concentration is reduced, for example, below a certain threshold value, the solution concentration regeneration unit 400 is required to concentrate the dehumidifying solution 800 after the dehumidifying treatment of the air, remove the moisture, and regenerate the dehumidifying solution, so that the dehumidifying solution can be reused.

In this embodiment, the solution dehumidifying unit 200 further includes a solution circulating pump 230, and the solution circulating pump 230 is connected to the liquid inlet pipe 210, so as to pump the dehumidified solution 800 into the liquid inlet pipe 210 and convey the dehumidified 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 connected to the solution tank 270. Thus, when the concentration of the dehumidifying solution 800 is not greatly reduced and the dehumidifying solution is reusable, for example, when the air humidity of the use environment is low, the solution circulation pump 230 directly pumps the dehumidifying solution 800 from the solution tank 270 into the liquid inlet pipe 210 and the gas-liquid heat exchanger 280, and the like, 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 position 271, and the throttle valve 430 is further configured to automatically close when the dehumidifying solution 800 in the solution tank 270 is below the sensing position 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 wire 273, and is configured to be automatically opened to convey the dehumidified solution 800 in the solution tank 270 into the evaporator 440 when the dehumidified solution 800 in the solution tank 270 is accumulated to a predetermined position. In one embodiment, the sensing element 272 is implemented using a resistive mating sensor. Such a design is advantageous in that the solution tank 270 is prevented from overflowing, thereby ensuring the safety of the use 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 collecting tray 360, an air conditioner cooling water tank 370, and a water replenishing 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 is located in the dehumidified air, the evaporation water distributor 340 is disposed above the evaporation filler structure 350, the evaporation water distributor 340 is used for distributing the air-conditioning circulating water 900 to the evaporation filler structure 350, and the air-conditioning circulating water 900 may be applied in a spraying or dripping manner; the application modes 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 evaporation 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 cooling water into the evaporation water distributor 340 through the air-conditioning water return pipe 310 to be recycled as circulating water. The air conditioner return water 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 used for collecting cold water cooled by evaporation with dehumidified air in the evaporation filler structure 350, that is, collecting cold water cooled by evaporation with air passing through the solution dehumidifying unit 200 and flowing out of the evaporation filler structure 350, and delivering the cold water to the air conditioner cooling water tank 370; that is, the air-conditioning circulating water 900 is matched with 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 connected to the air conditioning cooling water tank 370 and an external water pipe, and is used for replenishing the air conditioning circulating water 900. Because of evaporation loss, it is necessary to supplement the air-conditioning circulating water 900. Further, the air-conditioning cooling water tank 370 is provided with a water supplementing level 371, and the water supplementing valve 380 is further configured to be automatically opened when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is lower than the water supplementing level 371 in the air-conditioning cooling water tank 370; automatic opening includes automatically opening for a certain period of time and automatically opening until the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is higher than a certain water level. The design is favorable for automatic water supplementing and avoids wasting manpower.

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

In one embodiment, as shown in fig. 7, the solution dehumidifying evaporative cooling machine further comprises a housing 600; the air filtering unit 100 is disposed at an air inlet of the housing 600, and an air supply position of the air supply unit 500 is disposed at an air outlet of the housing 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 housing 600 or the solution concentrating and regenerating unit 400 is at least partially disposed inside the housing 600. When the solution dehumidifying evaporative cooling machine is installed in a specific environment, for example, a certain sealed space is provided for the solution dehumidifying unit 200, the evaporative cooling unit 300 and the air supply unit 500 to transmit the air filtered by the air filtering unit 100, the housing 600 may not be used; when a complete product is formed instead of a solution, the housing 600 may be used to form a relatively independent part structure, and the input and output of the dehumidifying solution 800 and the air-conditioning circulating water 900 may be realized by cooperating with a pipeline, and the solution concentrating and regenerating unit 400 may be fully or partially disposed outside the housing 600 and be communicated with the solution dehumidifying unit 200 through the recovery pipeline 410 and the regenerating pipeline 420. The pipes include a liquid inlet pipe 210, a liquid outlet pipe 220, an air conditioner water return pipe 310, an air conditioner water supply pipe 320, a recovery pipe 410, a regeneration pipe 420, and the like.

In one embodiment, as shown in fig. 8, the solution dehumidifying evaporative cooling machine further comprises a housing 600; the air supply unit 500, the gas-liquid heat exchanger 280, the dehumidification packing structure 250, the liquid collecting tray 260, the solution tank 270, the evaporation packing structure 350, the water collecting tray 360 and the air conditioning cooling water tank 370 are all disposed in the housing 600; the liquid inlet pipe 210 and the liquid outlet pipe 220 are at least partially disposed in the housing 600; the recovery pipe 410, the regeneration pipe 420, the air-conditioning water return pipe 310, and the air-conditioning water supply pipe 320 are partially disposed in the housing 600; the air filter 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 water distributor 340, the water replenishing valve 380 and/or the solution circulating pump 230 are also disposed in the housing 600.

In order to facilitate automatic control, in one embodiment, the solution dehumidifying and evaporating water chiller further comprises a control unit; the control unit is connected to the vacuum pump 480, and is used for controlling the concentration of the dehumidifying solution 800 in the inner cavity 442 and the solution tank 270 by controlling the work load of the vacuum pump 480, so as to adjust the humidity of the dehumidified air 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, and is configured to automatically open the throttle valve 430 to convey the dehumidified solution 800 in the solution tank 270 into the evaporator 440 when the dehumidified solution 800 in the solution tank 270 is accumulated to a predetermined position, and to automatically close the throttle valve 430 when the dehumidified solution 800 in the solution tank 270 is lower than the sensing position 271 in the solution tank 270; and/or the control unit is connected to the water supplementing valve 380, and the control unit is configured to automatically open the water supplementing valve 380 when the air-conditioning circulating water 900 in the air-conditioning cooling water tank 370 is lower than the water supplementing level 371 in the air-conditioning cooling water tank 370, and automatically close the water supplementing 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 a solution concentrating and circulating pump 470 of the solution concentrating and regenerating unit 400, for controlling the flow rate of the evaporated dehumidified solution 800 to the solution dehumidifying 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 condensation 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 circulation pump 230, for adjusting the dehumidifying capacity or cooling capacity of the solution dehumidifying unit 200 to 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 further connected to an air supply unit 500 of the solution dehumidifying and evaporating water chiller, and is used for controlling the refrigerating capacity of the solution dehumidifying and evaporating water chiller; and/or, the control unit is further connected to a solution concentrating and circulating pump 470 of the solution concentrating and regenerating unit 400, for controlling the flow rate of the evaporated dehumidified solution 800 to the solution dehumidifying unit 200. The control unit is further connected to the solution concentration circulation pump 470 for controlling the operation state of the solution concentration regeneration unit 400 to deliver the evaporated dehumidified solution 800 to the solution tank 270. The design is favorable for automatically controlling the solution dehumidifying and evaporating water chiller and precisely controlling the cold water with required temperature, and ensures the heat dissipation and cooling effects.

An embodiment of a specific application is provided below, in which a magnetic suspension vacuum pump or an air suspension vacuum pump is used to provide vacuum and a heat source to perform concentration regeneration of the dehumidifying solution 800, the solution dehumidifying evaporating chiller can cool the air conditioning circulating water 900 of the air conditioner only by indirect evaporative cooling in a winter mode, when the indirect evaporative cooling does not reach the required water temperature, the solution dehumidifying unit 200 starts to operate, starts to dehumidify the external air entering the equipment, after the humidity of the external air is reduced, the dew point temperature is greatly reduced, and cold water with the required temperature can be obtained in the evaporative cooling process of the later stage. The solution dehumidifying and evaporating water chiller comprises an air filter screen, a solution dehumidifying unit 200, an evaporating and cooling unit 300, a solution concentrating and regenerating unit 400, a fan, a control unit, a shell 600 and a supporting frame 700; the solution dehumidifying unit 200 comprises a solution distributor 240, a dehumidifying filler structure 250, a liquid collecting tray 260, a solution 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 disc 360, an air conditioner cooling water tank 370 and a water supplementing valve 380; the solution concentrating and regenerating unit 400 includes a throttle valve 430, an evaporator 440, a vacuum pump 480, a condensing coil, a solution concentrating and regenerating pump 470, and the solution concentrating and regenerating unit 400 is placed on the support frame 700 outside the housing 600; the air filter is located at the air inlet F1 of the housing 600, and the fan is located at the air outlet F2 of the housing 600. In this embodiment, an air filter screen is used as the air filtering unit 100, and a blower is used as the air supplying unit 500. When the solution dehumidifying and evaporating water chiller works in the solution concentrating and regenerating unit 400, the working load of the vacuum pump 480 is adjusted to adjust the outlet water temperature of the air conditioning cooling water tank 370 of the solution dehumidifying and evaporating water chiller; when the solution dehumidifying unit 200 of the solution dehumidifying evaporative water chiller works, the solution tank 270 of the solution dehumidifying evaporative water chiller adjusts the liquid level of the dehumidifying solution 800 in the solution tank 270 through the throttle valve 430.

In one embodiment, the solution dehumidifying and evaporating chiller comprises an air filtering unit 100, a solution dehumidifying unit 200, an evaporating and cooling unit 300 and a solution concentrating and regenerating unit 400, when the solution dehumidifying and evaporating chiller works, the outside air is filtered and purified by the air filtering unit 100, then dehumidified by the solution dehumidifying unit 200, and then cooled by the evaporating and cooling unit 300 to cool the air-conditioning circulating water 900 of the air conditioner, so as to obtain the cold water with the required temperature. When the solution concentration and regeneration unit 400 works, the vacuum pump 480 rotates at a high speed to generate vacuum, water in the dehumidified solution 800 in the evaporator 440 is evaporated, water vapor enters the vacuum pump 480, the discharged high-temperature water vapor is conveyed to the condensation structure 460, such as a condensation coil pipe, to be condensed into water through the vapor tube 481, and heat released in the condensation process is used for heating the dehumidified solution 800 in the evaporator 440; thus, the seamless joint of dew point indirect evaporative cooling and solution dehumidification evaporative cooling can be realized, and the system is used in a data center for example, and can greatly utilize natural cold sources in winter and transitional seasons, and can utilize a solution dehumidification evaporation mode to cool the air-conditioning circulating water 900 of the 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 recycling of the dehumidifying solution 800.

In each embodiment, the working modes of the solution dehumidifying and evaporating water chiller include a summer mode, a transitional season mode and a winter mode; when the summer mode is operated, the solution dehumidifying unit 200, the solution concentrating and regenerating unit 400 and the evaporative cooling unit 300 of the solution dehumidifying and evaporating water chiller simultaneously operate, and the solution dehumidifying and evaporating water chiller operates in a solution dehumidifying and evaporating cooling mode; when the winter mode is operated, the solution dehumidifying unit 200 and the solution concentrating and regenerating unit 400 of the solution dehumidifying and evaporating chiller are not operated, only the evaporating and cooling unit 300 is operated, and the solution dehumidifying and evaporating chiller is operated in a direct evaporating and cooling mode; when the transition season mode is operated, the solution dehumidifying unit 200 and the evaporative cooling unit 300 of the solution dehumidifying and evaporative water chiller operate simultaneously, the solution concentrating and regenerating unit 400 does not operate, and the solution dehumidifying and evaporative water chiller operates in an indirect evaporative cooling mode. The solution concentrating and regenerating unit 400 may also be operated intermittently according to the demand and actual conditions during the transition season mode operation.

In one embodiment, the solution dehumidifying and evaporating water chiller comprises an air conditioning component and the solution dehumidifying and evaporating water chiller according to any embodiment, cold water obtained by the evaporating and cooling unit 300 is output to the air conditioning component, and the evaporating and cooling unit 300 recovers water from the air conditioning component as the air conditioning circulating water 900. In one embodiment, the evaporative cooling unit 300 recovers the cold water after use from the air conditioning assembly as the air conditioning circulating water 900. In one embodiment, the air conditioning assembly is an end air conditioner such as a heat exchanger or the like. By the design, the solution concentration regeneration unit repeatedly utilizes the dehumidified solution, so that the effect of dehumidifying, evaporating and outputting cold water by the solution combined by solution dehumidification and indirect evaporative cooling is realized, on one hand, the humidity of the entering air is reduced, the dew point is reduced, and the evaporative cooling effect is further indirectly improved; on the other hand, the dehumidifying solution can be recycled, and the whole solution dehumidifying and evaporating water chiller only needs to supplement circulating water, so that the dehumidifying and evaporating water chiller is convenient and easy to use and is 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 structure of the product, and the processing capacity is greatly improved.

It should be noted that other embodiments of the present application further include a solution dehumidifying evaporative water chiller and a solution dehumidifying air conditioner, which are formed by combining the technical features of the above embodiments.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the application, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the application, which are all within the scope of the application. Accordingly, the scope of the application should be determined from the following claims.

Claims

1. The solution dehumidifying and evaporating water chiller is characterized by comprising a solution dehumidifying unit (200), an evaporating and cooling unit (300) and a solution concentrating and regenerating unit (400);

The solution dehumidifying unit (200) is used for dehumidifying ambient air entering the solution dehumidifying and evaporating cold water machine in a solution dehumidifying mode;

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

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

2. The solution dehumidifying evaporative water chiller according to claim 1 further comprising an air filtration unit (100) and an air supply unit (500), the air filtration unit (100) being configured to filter air entering the solution dehumidifying 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 evaporative water chiller according to claim 1, wherein the solution dehumidifying unit (200) comprises a solution circulation pump (230), a solution distributor (240), a dehumidifying packing structure (250), a drip pan (260), a solution 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 filler structure (250) is arranged adjacent to an air inlet or an air filtering unit (100) of the solution dehumidifying and evaporating cold water machine, the solution distributor (240) is arranged above the dehumidifying filler structure (250), and the solution distributor (240) is used for distributing the dehumidifying solution (800) to the dehumidifying filler structure (250);

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

4. The solution dehumidifying evaporative water chiller according to claim 1, wherein the evaporative cooling unit (300) comprises an air conditioner return conduit (310), an air conditioner water supply conduit (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 arranged between the dehumidification filler 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 filler structure (350), and the evaporation water distributor (340) is used for distributing the air-conditioning circulating water (900) to the evaporation filler structure (350);

the evaporation filler structure (350) is positioned above the water collecting disc (360), and the water collecting disc (360) is used for collecting cold water which flows out of the evaporation filler structure (350) and is cooled with air passing through the solution dehumidifying unit (200) in an evaporation cooling mode and then is conveyed to the air conditioner cooling water tank (370);

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

5. The solution dehumidifying evaporative water chiller according to claim 1, wherein the solution concentrating and regenerating unit (400) comprises a recovery pipe (410), a regeneration pipe (420), an evaporator (440), a vacuum pump (480), a condensing structure (460), a solution concentrating and circulating pump (470) and a condensing 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) of the solution dehumidifying unit (200) and the evaporator (440);

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

the vacuum pump (480) is communicated with the evaporator (440) and the condensation 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) so as to be in contact with the dehumidifying solution (800) in the inner cavity (442), part of steam generated after the moisture in the dehumidifying solution (800) is evaporated enters the condensation structure (460) through the rear part of the vacuum pump (480), and the generated condensed water flows into the condensation water tank (490);

after losing part of the moisture, the dehumidifying solution (800) in the inner cavity (442) 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 chiller according to claim 5, wherein the solution concentrating and regenerating unit (400) further comprises a throttle valve (430), wherein the dehumidified solution (800) dehumidified by the air in the solution tank (270) is introduced into 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 an air suspension vacuum pump; and/or;

the solution dehumidifying and evaporating water chiller further comprises a supporting frame (700), wherein the evaporator (440) is arranged on the supporting frame (700); and/or;

the solution dehumidifying and evaporating chiller further comprises a control unit connected with the vacuum pump (480), wherein the control unit is used for controlling the concentration of the dehumidifying solution (800) in the inner cavity (442) and the solution water tank (270) by controlling the work load of the vacuum pump (480), so as to adjust the humidity of the dehumidified air to control the temperature of the air-conditioning circulating water (900) in the air-conditioning cooling water tank (370) of the evaporating and cooling unit (300).

7. The solution dehumidifying evaporative water chiller according to claim 6 wherein the control unit is further connected to the throttle valve (430) for automatically opening the throttle valve (430) to deliver the dehumidified solution (800) in the solution tank (270) into the evaporator (440) when the dehumidified solution (800) in the solution tank (270) is accumulated to a predetermined position, and automatically closing the throttle valve (430) when the dehumidified solution (800) in the solution tank (270) is below a sensing position (271) in the solution tank (270); and/or the number of the groups of groups,

The control unit is also connected with a water supplementing valve (380) of the evaporative cooling unit (300), and is used for automatically opening the water supplementing valve (380) when the air-conditioning circulating water (900) in the air-conditioning cooling water tank (370) is lower than a water supplementing level (371) in the air-conditioning cooling water tank (370) and automatically closing the water supplementing 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 number of the groups of groups,

the control unit is also connected with the three-way valve (451) for adjusting the amount of steam entering the condensation structure (460) by controlling the three-way valve (451) arranged on the steam pipe (481) of the solution concentration regeneration unit (400), thereby adjusting the temperature of the dehumidifying solution (800); and/or the number of the groups of groups,

the control unit is also connected with the solution circulating pump (230) and is used for adjusting the dehumidifying capacity or the cooling capacity of the solution dehumidifying unit (200) on the ambient air by controlling the flow of the dehumidifying solution (800) in the solution dehumidifying unit (200); and/or the number of the groups of groups,

the control unit is also connected with an air supply unit (500) of the solution dehumidifying and evaporating water chiller and is used for controlling the refrigerating capacity of the solution dehumidifying and evaporating water chiller; and/or the number of the groups of groups,

The control unit is also connected with a solution concentration circulating pump (470) of the solution concentration regeneration unit (400) and is used for controlling the flow rate of the evaporated dehumidification solution (800) to the solution dehumidification unit (200).

8. The solution dehumidifying evaporative water chiller according to claim 1 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 filler structure (250), the liquid collecting tray (260) and the solution water tank (270) of the solution dehumidifying unit (200), and the evaporating filler structure (350), the water collecting tray (360) and the air conditioner cooling water tank (370) of the evaporating 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);

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

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

9. The solution dehumidifying 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 dehumidifying unit (200) operates in a counter-flow mode or a cross-flow mode, and the gas-liquid heat exchanger (280) of the solution dehumidifying unit (200) operates in a cross-flow mode.

10. A solution dehumidifying air conditioner comprising an air conditioning assembly and the solution dehumidifying evaporative cooling machine of any one of claims 1 to 9, wherein cold water obtained by the evaporative cooling unit (300) is fed to the air conditioning assembly.