CN105135743B - Air saline solution cold water unit - Google Patents

Abstract

The invention relates to an air-salt solution chiller, comprising a solution dehumidification unit, a solution regeneration unit, an adiabatic humidification heat exchange unit, an internal cooling air-water heat exchange unit, an internal cooling humidification heat exchange unit and an air-gas plate heat exchanger, the solution dehumidification unit and There is a salt solution dehumidification and regeneration loop between the solution regeneration units, a first heat exchange loop between the solution dehumidification unit and the internal cooling humidification heat exchange unit, and a second heat exchange loop between the solution regeneration unit and the external hot water pipeline. Heat exchange circulation loop, the first spray humidification circulation loop is set between the adiabatic humidification heat exchange unit and the external tap water pipeline; the third heat exchange circulation loop is set between the inner cooling air-water heat exchange unit and the return water pipeline of the water system , There is a second spray humidification loop between the internal cooling humidification heat exchange unit and the external tap water pipeline. The invention has the advantages of simple structure, low cost, stable operation and high energy efficiency ratio.

Description

An air salt solution chiller

technical field

The invention relates to the field of cold water preparation in the field of industrial cooling or air conditioning, in particular to an air salt solution chiller using air as a heat exchange medium.

Background technique

In the field of industrial refrigeration, cooling and air conditioning, it is usually necessary to provide chilled water by refrigeration equipment to meet production or living needs. Traditional refrigeration equipment usually adopts the heat pump method, which is mainly composed of compressors, evaporators, condensers, expansion valves and other components, and the refrigerant circulates in it. During the cycle operation, the refrigerant is converted between gas and liquid through the compressor and expansion valve. When the temperature rises, the heat is released through air, water and other media; on the other hand, the refrigerant will absorb heat at the evaporator, which will reduce the temperature of the water in the water system for heat exchange with it, thereby realizing refrigeration or generating cold water the goal of.

The refrigeration equipment with the heat pump as the main working component not only consumes a large amount of electric energy in the actual operation process, resulting in a waste of high-grade energy, but also makes the refrigeration equipment work at a low evaporation temperature for a long time, resulting in a lower coefficient of performance of the refrigeration equipment. Low, resulting in lower overall energy efficiency ratio of the unit. Experiments have shown that the energy efficiency ratio of refrigeration equipment based on heat pumps is relatively low, which is not conducive to the sustainable development and utilization of energy.

Contents of the invention

The object of the present invention is to provide an air salt solution chiller, which has the advantages of simple structure, stable operation, low cost and high energy efficiency ratio.

In order to solve the technical problems of high power consumption and low energy efficiency ratio of heat pump refrigeration equipment in the prior art, an air salt solution chiller of the present invention includes a solution dehumidification unit, a solution regeneration unit, an adiabatic humidification heat exchange unit, and an internal air conditioner The water heat exchange unit, the internal cooling humidification heat exchange unit and the air-gas plate heat exchanger, the solution dehumidification unit is equipped with the first spray device, the first heat exchange device, and the first solution tank in sequence from top to bottom; the solution regeneration unit is arranged from the top The second spray device, the second heat exchange device, and the second solution tank are arranged in sequence from the bottom; the adiabatic humidification heat exchange unit is provided with the third spray device, the third heat exchange device, and the third solution tank in sequence from top to bottom ; The inner cooling air-water heat exchange unit is provided with a fourth heat exchange device; the inner cooling humidification heat exchange unit is provided with a fifth spray device, a fifth heat exchange device, and a fifth solution tank in sequence from top to bottom;

The first spraying device and the first solution tank in the solution dehumidification unit are respectively connected with the second solution tank and the second spraying device in the solution regeneration unit through pipelines to form a salt solution dehumidification and regeneration loop, and the salt solution dehumidification regeneration loop A concentrated salt solution pump is provided on the pipeline communicating with the first spraying device, and a dilute salt solution pump is provided on the pipeline communicating with the second spraying device, and the concentrated salt solution pump is used to pump concentrated salt to the first spraying device solution, the dilute salt solution pump is used to pump dilute salt solution to the second spraying device;

The first heat exchange device, the second heat exchange device, the fourth heat exchange device and the fifth heat exchange device are all internal cooling heat exchange devices, and the third heat exchange device is a packed heat exchange device; the first heat exchange device The liquid inlet and the liquid outlet are respectively communicated with the liquid outlet and the liquid inlet of the fifth heat exchange device through pipelines to form a first heat exchange circulation loop, and a first circulating water pump is arranged in the first heat exchange circulation loop; The liquid inlet and the liquid outlet of the heat device are respectively communicated with the external hot water pipeline through pipelines to form a second heat exchange circulation loop, and a second circulating water pump is provided on the pipeline communicated with the liquid inlet of the second heat exchange device; The third spray device and the third solution tank are respectively connected with the external tap water pipeline through pipelines to form the first spray humidification cycle; the liquid inlet and outlet of the fourth heat exchange device are respectively connected with the return pipe of the water system through pipelines The third heat exchange circulation loop is formed by the road connection; the fifth spray device and the fifth solution tank are respectively connected with the external tap water pipeline through pipelines to form the second spray humidification circulation loop;

The outdoor air passes through the solution dehumidification unit, adiabatic humidification heat exchange unit, internal cooling air-water heat exchange unit and internal cooling humidification heat exchange unit, and then the first air channel is discharged to the outside; the outdoor air passes through the air-gas plate heat exchanger, solution regeneration After the unit is discharged to the outside through the air-air plate heat exchanger, it is the second air duct.

Preferably, the present invention is an air saline water chiller, wherein, the inlet end of the first air duct is provided with a first air supply fan, the entrance end of the second air duct is provided with a second air supply fan, and the first air supply fan Both the blower fan and the second blower fan are variable frequency blowers.

Preferably, the present invention is an air salt solution chiller, wherein a concentrated salt solution tank and a dilute salt solution tank are arranged in the salt solution dehumidification regeneration loop, and the concentrated salt solution tank is arranged in the second solution tank and the concentrated salt solution tank. On the pipeline between the pumps, the dilute salt solution tank is arranged on the pipeline between the first solution tank and the dilute salt solution pump.

Preferably, the present invention is an air salt solution chiller, wherein a liquid-liquid plate heat exchanger is also provided in the salt solution dehumidification regeneration loop, and the channel on one side of the liquid-liquid plate heat exchanger is arranged in the concentrated salt solution tank On the pipeline between the first spraying device and the channel on the other side of the liquid-liquid plate heat exchanger is set on the pipeline between the dilute salt solution tank and the second spraying device.

Preferably, the present invention is an air-salt solution chiller, wherein, the first heat exchange device, the second heat exchange device, the fourth heat exchange device and the fifth heat exchange device are all multi-layer pipe arrangement structures, and the multi-layer The pipes are made of plastic, one end of the multilayer pipes is connected with the liquid inlet channel connected with the liquid inlet, and the other end of the multilayer pipes is connected with the liquid outlet channel connected with the liquid outlet.

Preferably, the present invention is an air salt solution chiller, wherein, an air diversion valve is provided between the solution dehumidification unit and the adiabatic humidification heat exchange unit in the first air duct, and the air diversion valve is dehumidified with the solution through the bypass air duct The first air channel between the unit and the first air blower communicates.

Preferably, the present invention is an air-salt solution chiller, wherein a water mixing valve is provided on the pipeline communicating with the liquid inlet of the second heat exchange device in the second heat exchange circulation loop, and the water mixing valve is located in the circulating water pump The water mixing valve communicates with the pipeline connected to the liquid outlet of the second heat exchange device through a pipeline; a check valve is also provided on the pipeline connected to the fifth spray device in the second spray humidification cycle circuit.

Preferably, the air salt solution chiller of the present invention further includes an electrical control unit, which is used to control the power distribution and operating parameters of each component in the unit.

Optionally, the present invention is an air salt solution chiller, wherein two or more of the solution dehumidification unit, the solution regeneration unit and the internal cooling humidification heat exchange unit are provided, and the solution dehumidification unit, the solution regeneration unit and the The internal cooling, humidification and heat exchange units are arranged in groups, and an independent saline solution dehumidification regeneration loop is set between the solution dehumidification unit and the solution regeneration unit in each group.

Optionally, the present invention is an air salt solution chiller, wherein two or more of the solution dehumidification unit, the solution regeneration unit and the internal cooling type humidification heat exchange unit are provided, and the solution dehumidification unit and the solution regeneration unit There is a common pipeline for the dehumidification and regeneration circulation loop of the salt solution. The common pipeline for the dehumidification and regeneration circulation loop of the salt solution includes two pipelines with opposite liquid flow directions. The shared pipeline forms a mixed salt solution dehumidification regeneration loop.

Compared with the prior art, an air-salt solution chiller of the present invention has the following advantages: (1) The present invention performs refrigeration and heat by setting a solution dehumidification unit, a solution regeneration unit and an adiabatic humidification heat exchange unit as an internal cooling air-water heat exchange unit exchanged pre-device, and by establishing a salt solution dehumidification regeneration loop between the solution dehumidification unit and the solution regeneration unit, a first spray humidification loop is established between the adiabatic humidification heat exchange unit and the external tap water pipeline; The air entering the first air duct first passes through the solution dehumidification unit and performs heat and moisture exchange with the salt solution sprayed in it, so that the air is cooled and dehumidified to obtain dry air with a relatively low temperature; then the dry air is passed through the adiabatic humidification exchange The heat unit performs heat and moisture exchange with the tap water sprayed in it, and the dry air will absorb moisture to further reduce the temperature, thereby obtaining a cold source that meets the requirements of use; then let the low-temperature air pass through the inner cooling air-water heat exchange unit, and with the The return water of the water system in the fourth heat exchange device performs heat exchange, and absorbs the heat of the return water of the water system to lower the temperature, thereby achieving the purpose of cooling or generating cold water. The above method enables the present invention to make full use of low-grade energy (air) with extensive resources, and through the operation of the solution dehumidification regeneration loop and the first spray humidification loop, the purpose of precise control can be realized, so that the present invention is not affected by outdoor weather. In order to avoid the influence of the environment, the low-temperature air that meets the requirements of use is obtained as a heat exchange cooling source, which enhances the operation stability of the unit. (2) The present invention sets up the internal cooling humidification heat exchange unit, and establishes a second spray humidification circulation loop between the internal cooling humidification heat exchange unit and the external tap water pipeline, and the connection between the internal cooling humidification heat exchange unit and the solution dehumidification unit The first heat exchange cycle is established in between, so that the air after heat exchange with the return water of the water system first passes through the internal cooling humidification heat exchange unit and then is discharged outside. During this process, when the air exchanges heat and moisture with the tap water sprayed in the internal cooling, humidification, and heat exchange unit, it will absorb the heat transferred from the solution dehumidification unit to the internal cooling, humidification, and heat exchange unit through the first heat exchange loop, and Discharge outside after becoming saturated. This method can not only transfer the latent heat generated in the dehumidification process of the solution dehumidification unit in time, so as to maintain a stable dehumidification capacity, but also realize the maximum utilization of energy, relatively save energy, and improve the energy efficiency ratio. (3) The present invention establishes a second heat exchange loop between the second heat exchange device and the external hot water pipeline, and provides the solution regeneration unit with the heat required for the regeneration of the salt solution through the external hot water. The external hot water can use urban waste water Hot water or industrial waste hot water realizes waste utilization of energy and reduces energy consumption. (4) In the present invention, an air-air plate heat exchanger is arranged, and the air in the second air channel first passes through the air-air plate heat exchanger and the solution regeneration unit, and then is discharged outside through the air-air plate heat exchanger. During this process, the air that has just entered the air-gas plate heat exchanger from the outside will exchange heat with the air that has passed through the solution regeneration unit and entered the air-gas plate heat exchanger, so that the air that has just entered the air-gas plate heat exchanger from the outside The air temperature of the heater is increased, which reduces its relative humidity, which is more conducive to the continuous regeneration of the brine solution, thereby improving the efficiency and effectiveness of the overall unit.

Below in conjunction with the specific embodiment shown in the accompanying drawings, a kind of air salt solution chiller of the present invention is described in further detail:

Description of drawings

Fig. 1 is the schematic diagram of the first embodiment of a kind of air salt solution chiller of the present invention;

Fig. 2 is the second embodiment schematic diagram of a kind of air salt solution chiller of the present invention;

Fig. 3 is a schematic diagram of a third embodiment of an air salt solution chiller of the present invention.

detailed description

As shown in Figure 1, the schematic diagram of the first embodiment of an air-salt solution chiller of the present invention includes a solution dehumidification unit 1, a solution regeneration unit 2, an adiabatic humidification heat exchange unit 3, an internal cooling air-water heat exchange unit 4, an internal The cold humidification heat exchange unit 5 and the gas-gas plate heat exchanger 6, the solution dehumidification unit 1 is provided with the first spray device 101, the first heat exchange device 102 and the first solution tank 103 in sequence from top to bottom; the solution regeneration unit 2 The second spray device 201, the second heat exchange device 202 and the second solution tank 203 are arranged in sequence from top to bottom; the third spray device 301, the second The third heat exchange device 302 and the third solution tank 303; the fourth heat exchange device 401 is arranged in the inner cooling air-water heat exchange unit 4; the fifth spray device 501 is arranged in the inner cooling humidification heat exchange unit 5 from top to bottom , the fifth heat exchange device 502 and the fifth solution tank 503 .

Let the first spray device 101 and the first solution tank 103 in the solution dehumidification unit 1 communicate with the second solution tank 203 and the second spray device 201 in the solution regeneration unit 2 respectively through pipelines to form a salt solution dehumidification regeneration cycle circuit, and a concentrated salt solution pump 7 is set on the pipeline communicating with the first spraying device 101 in the salt solution dehumidification regeneration circulation circuit, and a dilute salt solution pump 8 is set on the pipeline communicating with the second spraying device 201 . In the saline solution dehumidification and regeneration circuit, there is a saline solution circulating. During operation, the concentrated salt solution pump 7 pumps the concentrated salt solution to the first spraying device 101, and the dilute salt solution pump 8 pumps the dilute salt solution to the second spraying device 201. saline solution.

In the present invention, the first heat exchange device 102, the second heat exchange device 202, the fourth heat exchange device 401 and the fifth heat exchange device 502 all adopt internal cooling heat exchange devices, while the third heat exchange device 302 adopts packing type heat exchange devices. heat device. In a specific arrangement, the liquid inlet and the liquid outlet of the first heat exchange device 102 are respectively communicated with the liquid outlet and the liquid inlet of the fifth heat exchange device 502 through pipes to form a first heat exchange cycle, and A first circulating water pump 9 is provided in the first heat exchange circulation loop to provide circulation driving force. Let the liquid inlet and the liquid outlet of the second heat exchange device 202 be communicated with the external hot water pipeline through pipes to form a second heat exchange cycle, and communicate with the liquid inlet of the second heat exchange device 202 A second circulating water pump 10 is arranged on the pipeline to provide circulating driving force. Let the third spraying device 301 and the third solution tank 303 communicate with the external tap water pipeline through pipes respectively, so as to form a first spraying and humidifying circulation loop. Let the liquid inlet and the liquid outlet of the fourth heat exchange device 401 communicate with the return water pipe of the water system through pipes, so as to form a third heat exchange circulation loop. The fifth spraying device 501 and the fifth solution tank 503 are respectively communicated with the external tap water pipeline through pipelines to form a second spraying and humidifying circulation loop. It should be noted that the external hot water pipeline described in the present invention may be a city waste heat pipe network or an industrial waste heat pipe network, and the external tap water pipeline may be an ordinary tap water pipe network, or a pipe connected to a lake or a river. The water system refers to the external equipment or system that needs to use cold water. The first heat exchanging device 102, the second heat exchanging device 202, the fourth heat exchanging device 401 and the fifth heat exchanging device 502 in the present invention are all plastic multi-layer pipe structures, and make one end of the multi-layer pipe common It communicates with the liquid inlet passage communicated with the liquid inlet, so that the other end of the multi-layer row tube communicates with the liquid outlet passage communicated with the liquid outlet. The heat exchange device with this structure can not only give full play to the advantages of the internal cooling heat exchange method, but also save the manufacturing cost. If the manufacturing cost is not considered, it can also be made of metal materials such as copper or alloy steel. The packing-type third heat exchange device 302 is used to disperse the water sprayed in the adiabatic humidification heat exchange unit 3 during operation, so as to increase the contact area between the water and the passing air, thereby improving the heat and moisture exchange between the air and water efficiency and effectiveness.

It should be pointed out that the present invention is provided with a first air duct and a second air duct, and the outdoor air passes through the solution dehumidification unit 1, the adiabatic humidification heat exchange unit 3, the inner cooling air-water heat exchange unit 4 and the inner cooling humidification heat exchange unit 5 The passage that is discharged outside is the first air passage; the passage that the outdoor air passes through the air-air plate heat exchanger 6 and the solution regeneration unit 2 and then discharged outside through the air-air plate heat exchanger 6 is the second air passage. In this specific embodiment, a first blower fan 11 is set at the entrance of the first air duct, a second blower fan 12 is set at the entrance of the second air duct, and the first blower fan 11 and the second blower blower 12 all adopt frequency conversion fans, which can be adjusted according to indoor and outdoor parameters to save energy and enhance the stability of unit operation.

Through the above structural settings, the solution dehumidification unit 1, the solution regeneration unit 2 and the adiabatic humidification heat exchange unit 3 become the pre-device for heat exchange between the internal cooling air-water heat exchange unit 4 and the return water of the system, for which preparation, Provides cold air as a cooling source. In a specific application, let the air entering from the first air duct first pass through the solution dehumidification unit 1 and perform heat and moisture exchange with the salt solution sprayed therein, so that the air can be cooled and dehumidified to obtain dry air with a relatively low temperature; then Let the dry air pass through the adiabatic humidification heat exchange unit 3 and exchange heat and moisture with the tap water sprayed therein. The dry air will absorb moisture to further reduce the temperature; The return water of the water system in the fourth heat exchange device 401 performs heat exchange, the low-temperature air will absorb the heat of the return water of the water system, and the temperature of the return water of the water system is lowered, thereby achieving the purpose of cooling or generating cold water. The above method enables the present invention to make full use of low-grade energy (air) with extensive resources, and by controlling the operation of the solution dehumidification regeneration cycle loop and the first spray humidification cycle loop, the purpose of precise control can be achieved, and the present invention is not affected by outdoor weather. The low-temperature air that meets the requirements of use can be obtained without the influence of the environment, thereby enhancing the stability of the unit. At the same time, the present invention establishes a second spray humidification cycle loop between the internal cooling humidification heat exchange unit 5 and the external tap water pipeline, and establishes a first heat exchange cycle between the internal cooling humidification heat exchange unit 5 and the solution dehumidification unit 1 The loop allows the return water from the water system to enter the heat-exchanged air, first passes through the internal cooling, humidifying, and heat-exchanging unit 5, and then is discharged outside. During this process, when the air exchanges heat and moisture with the tap water sprayed by the fifth spraying device 501, it will absorb the heat transferred from the solution dehumidification unit 1 to the internal cooling, humidification, and heat exchange unit 5 through the first heat exchange circuit, And become saturated and discharged outside. This method can not only transfer the latent heat generated in the dehumidification process of the solution dehumidification unit 1 in time, so as to maintain a stable dehumidification capacity, but also maximize energy utilization, correspondingly save energy, and improve energy efficiency ratio. In addition, the present invention arranges the air-air plate heat exchanger 6, and makes the air entering the second air passage first pass through the air-air plate heat exchanger 6 and the solution regeneration unit 2, and then pass through the air-air plate heat exchanger 6 to be discharged outdoors. . During this process, the air that has just entered the air-gas plate heat exchanger 6 from the outside will exchange heat with the air that has passed through the solution regeneration unit 2 and entered the air-gas plate heat exchanger 6, so that the air that has just entered the air-gas plate heat exchanger 6 from the outside The temperature of the air in the gas-plate heat exchanger 6 rises to lower its relative humidity, which is more conducive to the continuous regeneration of the saline solution, thereby improving the efficiency and effectiveness of the overall unit. The air-gas plate heat exchanger 6 can be made of plastic to meet the requirements of use, and the manufacturing cost can be reduced accordingly; if the cost is not considered, it can also be made of metal, and the heat exchange efficiency can be improved accordingly. A second heat exchange cycle is established between the second heat exchange device and the external hot water pipeline, and the external hot water provides the solution regeneration unit 2 with the heat required for the regeneration of the salt solution, and the external hot water can fully utilize urban waste heat Water or industrial waste hot water, etc., in order to realize energy waste utilization, reduce energy consumption, and improve social and economic benefits.

As a further optimization method, in this specific embodiment, a concentrated salt solution tank 13 and a dilute salt solution tank 14 are set in the salt solution dehumidification regeneration loop, and the concentrated salt solution tank 13 is arranged in the second solution tank 203 and the concentrated salt solution On the pipeline between the pumps 7 , the dilute saline solution tank 14 is arranged on the pipeline between the first solution tank 103 and the dilute saline solution pump 8 . The regenerated concentrated salt solution is collected and stored by the concentrated salt solution tank 13, and the dehumidified diluted salt solution is collected and stored by the dilute salt solution tank 14, which can ensure the operation stability of the salt solution dehumidification regeneration loop. At the same time, this specific embodiment also sets a plate heat exchanger 15 in the saline solution dehumidification regeneration loop, and sets the channel on one side of the plate heat exchanger 15 between the concentrated salt solution tank 13 and the first spraying device 101 On the pipeline, the channel on the other side of the plate heat exchanger 15 is set on the pipeline between the dilute salt solution tank 14 and the second spraying device 201, so that the concentrated salt solution and the dilute salt solution passing through the plate heat exchanger 15 The heat exchange is carried out, so that the temperature of the two reaches a relative balance, thereby enhancing the operation stability and control accuracy of the unit.

In this specific embodiment, an air diversion valve 16 is set between the solution dehumidification unit 1 and the adiabatic humidification heat exchange unit 3 in the first air duct, and the air diversion valve 16 is connected to the solution dehumidification unit 1 and the first air duct through the bypass air duct. The first air ducts between the blower fans 11 communicate with each other. By setting the air steering valve 16, the operation control mode of the present invention can be made more flexible. For example, the solution dehumidification unit 1, the solution regeneration unit 2 and the internal cooling humidification heat exchange unit 5 can be shut down according to the needs of use, and only the adiabatic humidification heat exchange unit can be operated. 3 and the internal cooling air-water heat exchange unit 4, and let the outdoor air directly enter the adiabatic humidification heat exchange unit 3 from the bypass air duct through the air diversion valve 16 to reduce operating costs. In this specific embodiment, a water mixing valve 17 is also arranged on the pipeline communicated with the liquid inlet of the second heat exchange device 202, and the water mixing valve 17 is located outside the circulating water pump 10, and the water mixing valve 17 is passed through the pipeline. It communicates with the pipeline connected to the liquid outlet of the second heat exchange device 202 . Setting the water mixing valve 17 can more accurately control the temperature of the hot water entering the second heat exchange device 202 , making it suitable for the regeneration treatment of the salt solution in the solution regeneration unit 2 . At the same time, a one-way valve 18 is provided on the pipe connected to the fifth spraying device 501 in the second spraying and humidifying cycle circuit, and the one-way valve 18 can control the water volume of the second spraying and humidifying cycle circuit or shut it down.

It should be pointed out that an electric control unit (not shown in the figure) is provided in the present invention, and the power distribution and operation parameters of each part in the unit are controlled and adjusted by the electric control unit, so as to improve the degree of automatic management and ensure Stability of unit operation. The electrical control unit mainly includes devices such as detection sensors, actuators, DDC or PLC single-chip microcomputers.

As shown in Figure 2, the schematic diagram of the second embodiment of an air salt solution chiller of the present invention is different from the first embodiment in that the second embodiment is provided with two solution dehumidification units 1 and two solution dehumidification units. Regeneration unit 2 and two internal cooling humidification heat exchange units 5, and a common pipeline for the dehumidification and regeneration circulation circuit of the salt solution is set between the solution dehumidification unit 1 and the solution regeneration unit 2, so that the two solution dehumidification units 1 and the two solutions can be regenerated The unit 2 forms a mixed saline solution dehumidification regeneration loop through the common pipeline of the salt solution dehumidification regeneration loop. Specifically, the first spray devices 101 in the two solution dehumidification units 1 are communicated with each other, and then the concentrated salt solution pump 7 and the plate heat exchanger 15 are jointly communicated with the concentrated salt solution tank 13 to make the two solution dehumidification units The first solution tank 103 in 1 communicates with each other and then communicates with the dilute salt solution tank 14; at the same time, the second spray device 201 in the two solution regeneration units 2 communicates with each other, and then the dilute salt solution pump 8, plate heat exchange The device 15 communicates with the dilute salt solution tank 14, so that the second solution tank 203 in the two solution regeneration units 2 communicates with each other and then communicates with the concentrated salt solution tank 13, so that the two solution dehumidification units 1 and the two solution regeneration units 2 A mixed salt solution dehumidification regeneration loop is formed between them. Except for the mixed saline solution dehumidification and regeneration loop between the two solution dehumidification units 1 and the two solution regeneration units 2, the principles of other devices are the same or similar to those of the first embodiment, and will not be repeated here. By adding solution dehumidification unit 1 and solution regeneration unit 2, the dehumidification capacity and refrigeration capacity of the unit can be enhanced.

As shown in Figure 3, the schematic diagram of the third embodiment of an air salt solution chiller of the present invention is different from the second embodiment in that in this embodiment, the solution dehumidification unit 1, the solution regeneration unit 2 and the internal The cold humidification and heat exchange units 5 are arranged in groups, and an independent salt solution dehumidification and regeneration circuit is set between the solution dehumidification unit 1 and the solution regeneration unit 2 in each group. An independent first heat exchange circulation loop is set between them. The first air duct passes through two solution dehumidification units 1, adiabatic humidification heat exchange unit 3, internal cooling air-water heat exchange unit 4 and two internal cooling humidification heat exchange units 5, and the first air duct between the two solution dehumidification units 1 An air diversion valve 16 is added in one air duct, so that the added air diversion 16 is connected with the bypass air supply; after the second air duct passes through the air-air plate heat exchanger 6, it passes through two solution regeneration units 2 respectively, and then passes through the air-air Plate heat exchanger 6. This structural setting can improve the convenience of the unit, because the two independent saline solution dehumidification regeneration loops do not affect each other, and the two independent first heat exchange loops do not affect each other, when a group After the solution dehumidification unit 1, the solution regeneration unit 2, and the internal cooling humidification heat exchange unit 5 lose their functions, the other group can operate as usual. In actual use, one of them can also be selected to run or both can be run at the same time to meet actual needs.

It should be noted that in the present invention, the solution dehumidification unit 1, the solution regeneration unit 2, the internal cooling humidification heat exchange unit 5, the adiabatic humidification heat exchange unit 3, the internal cooling air-water heat exchange unit 4, and the air-gas plate heat exchanger 6 are not Limited to the number of settings in the above-listed embodiments, two or more can be set according to actual needs, among which the first heat exchange cycle, the second heat exchange cycle, the third heat exchange cycle and the first spray The shower humidification circulation circuit and the second spray humidification circulation circuit are not limited to the connection methods listed, and can be flexibly selected according to actual needs.

In order to help those skilled in the art understand the present invention, the heat exchange process and the dehumidification regeneration cycle process of the salt solution of the present invention will be further described in detail below. For the convenience of expression, as shown in Figure 1, the first embodiment will be described below Objects are described.

First of all, it needs to be explained that the present invention is provided with two air passages, the first air passage and the second air passage, and three exchange cycles of the first heat exchange circulation loop, the second heat exchange circulation loop and the third heat exchange circulation loop. The circuit is equipped with a first spray humidification circulation loop, a second spray humidification circulation loop, and a salt solution dehumidification regeneration circulation loop. All heat exchange processes are mainly carried out in the above air duct and circulation loop.

The heat exchange process of the air in the air duct:

The process of heat exchange when the air flows in the first air channel is as follows: the outdoor air is sent into the first air channel through the first air supply fan 11, first, the air passes through the solution dehumidification unit 1 and is sprayed with the first spray device 101. The low-temperature and high-concentration salt solution sprayed directly contacts for heat and moisture exchange, and the air is cooled and dehumidified to obtain dry air with a relatively low temperature; then, the dry air enters the adiabatic humidification heat exchange unit 3, and passes through the third spraying device The tap water sprayed by 301 directly contacts for heat and moisture exchange, which increases the relative humidity of the air and further reduces the temperature. The tap water absorbs the heat in the air and transfers the heat through the first spray humidification loop; then, the low-temperature air enters the inner cooling air The water heat exchange unit 4, and performs heat exchange with the return water of the water system flowing in the fourth heat exchange device 401, and the low-temperature air absorbs the heat of the return water of the water system to lower its temperature, thereby achieving the purpose of cooling or generating cold water; finally, The air then enters the internal cooling, humidification and heat exchange unit 5, and performs heat and moisture exchange with the tap water sprayed by the fifth heat exchange device 502, and at the same time, the absorption solution dehumidification unit 1 is transferred to the internal cooling, humidification and heat exchange unit through the first heat exchange loop 5 phase change latent heat, the air becomes saturated and discharged outside.

The process of heat exchange when the air flows in the second air channel is as follows: the outdoor air is sent into the second air channel through the second blower fan 12, first, the air enters the air-gas plate heat exchanger 6; then the air enters the solution regeneration unit 2 And perform heat and moisture exchange with the saline solution sprayed by the second spraying device 201, so that the temperature of the air increases and the relative humidity increases; finally, the air is discharged outside through the air-air plate heat exchanger 6. During this process, the air that has just entered the air-gas plate heat exchanger 6 from the outside will exchange heat with the air that has passed through the solution regeneration unit 2 and entered the air-gas plate heat exchanger 6, so that the air that has just entered the air-gas plate heat exchanger 6 from the outside The temperature of the air in the gas plate heat exchanger 6 increases, and its relative humidity decreases, which is more conducive to the continuous regeneration of the brine solution, thereby improving the efficiency and effectiveness of the overall unit.

Salt solution dehumidification regeneration cycle process and heat exchange process:

The low-temperature concentrated salt solution is sprayed by the first spray device 101 in the solution dehumidification unit 1, and is in direct contact with the air passing through the first air channel. At this time, the water vapor partial pressure in the air is higher than the surface of the salt solution. Vapor pressure, the salt solution will absorb the moisture in the fresh air to achieve dehumidification of the air, the concentration of the concentrated salt solution will decrease due to the absorption of moisture in the air, the salt solution will fall into the first solution tank 103 after spraying, and flow into the dilute salt solution In solution tank 14; Dilute salt solution is then pumped to the second spray device 201 of solution regeneration unit 2 from dilute salt solution tank 14 by dilute salt solution pump 8, sprays in solution regeneration unit 2 and passes through The air in the second air channel is in direct contact with the heat and moisture exchange. At this time, the water vapor partial pressure in the air is lower than the surface vapor pressure of the salt solution, and part of the liquid water in the salt solution will become gaseous and enter the air, thus making The salt solution is regenerated into a concentrated salt solution, and after spraying, the salt solution will fall into the second solution tank 203 and flow into the concentrated salt solution tank 13; The first spraying device 101 sent to the solution dehumidification unit 1 is subjected to spraying and dehumidification treatment, so that the cycle runs repeatedly. During this process, when the solution dehumidification unit 1 dehumidifies the air in the first air duct, it will release latent heat of phase change, and the latent heat of phase change is transferred from the first heat exchange loop to the internal cooling, humidification and heat exchange unit 5; the solution regeneration unit 2. When performing salt solution regeneration treatment, it is necessary to heat and absorb the latent heat of phase change, and the required heat is provided by the second heat exchange loop through an external heat source.

The above examples are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of protection claimed by the present invention. Under the premise of not departing from the design spirit of the present invention, engineers and technicians in the field made according to the technical solution of the present invention Variations in various forms should fall within the scope of protection defined by the claims of the present invention.

Claims (10)

1. a kind of air salting liquid handpiece Water Chilling Units, including solution dehumidification unit (1), solution regeneration unit (2), adiabatic humidiflcation heat exchange Unit (3), interior cold air water heat exchange unit (4), interior cold humidification heat exchange unit (5) gentle gas plate type heat exchanger (6), its feature exist In：The solution dehumidification unit (1) is from top to bottom sequentially provided with the first spray equipment (101), the first heat-exchanger rig (102), One liquor box (103)；Solution regeneration unit (2) is from top to bottom sequentially provided with the second spray equipment (201), the second heat-exchanger rig (202), the second liquor box (203)；Adiabatic humidiflcation heat exchange unit (3) is from top to bottom sequentially provided with the 3rd spray equipment (301), Three heat-exchanger rigs (302), the 3rd liquor box (303)；Interior cold air water heat exchange unit (4) is provided with the 4th heat-exchanger rig (401)；It is interior cold Humidification heat exchange unit (5) is from top to bottom sequentially provided with the 5th spray equipment (501), the 5th heat-exchanger rig (502), the 5th liquor box (503)；

The first spray equipment (101) and the first liquor box (103) in solution dehumidification unit (1) by pipeline respectively with solution again The second liquor box (203) in raw unit (2) connects forming salt solution dehumidification regeneration cycle with the second spray equipment (201) and returns Road, the pipeline connected with the first spray equipment (101) in salting liquid dehumidifying regeneration cycle loop is provided with dense saline solution pump (7), The pipeline connected with the second spray equipment (201) is provided with dilute salting liquid pump (8), and dense saline solution pump (7) is for the first spray Device (101) pumps dense saline solution, and dilute salting liquid pump (8) to the second spray equipment (201) for pumping dilute salting liquid；

First heat-exchanger rig (102), the second heat-exchanger rig (202), the 4th heat-exchanger rig (401) and the 5th heat-exchanger rig (502) Inner-cooled heat-exchanger rig is, the 3rd heat-exchanger rig (302) is material filling type heat-exchanger rig；The feed liquor of the first heat-exchanger rig (102) Mouthful and liquid outlet connected with the liquid outlet and inlet of the 5th heat-exchanger rig (502) respectively by pipeline and to form the first heat exchange and follow Loop back path, is provided with first circulation water pump (9) in the first heat exchange circulation loop；The inlet of the second heat-exchanger rig (202) and go out Liquid mouthful connects to form the second heat exchange circulation loop with outside hot water line respectively by pipeline, and with the second heat-exchanger rig (202) pipeline of inlet connection is provided with second circulation water pump (10)；3rd spray equipment (301) and the 3rd liquor box (303) connect to form the first shower humidification circulation loop with outside tap water pipe line by pipeline respectively；4th heat-exchanger rig (401) inlet and liquid outlet connects to form the 3rd heat exchange circulation time with the water return pipeline of water system respectively by pipeline Road；5th spray equipment (501) and the 5th liquor box (503) connect to form second by pipeline with outside tap water pipe line respectively Shower humidification circulation loop；

Outdoor air is by solution dehumidification unit (1), adiabatic humidiflcation heat exchange unit (3), interior cold air water heat exchange unit (4) and interior cold The path that outdoor is then exhausted from after humidification heat exchange unit (5) is the first air channel；Outdoor air is by gas gas plate type heat exchanger (6), molten It is the second air channel to discharge outdoor path by gas gas plate type heat exchanger (6) again after liquid regeneration unit (2).

2. according to a kind of air salting liquid handpiece Water Chilling Units described in claim 1, it is characterised in that：The entrance in first air channel End is provided with the first breeze fan (11), and the arrival end in the second air channel is provided with the second breeze fan (12), the first breeze fan (11) Frequency conversion fan is used with the second breeze fan (12).

3. according to a kind of air salting liquid handpiece Water Chilling Units described in claim 1, it is characterised in that：The salting liquid dehumidifying regeneration Dense saline solution tank (13) and dilute salting liquid tank (14) are provided with circulation loop, dense saline solution tank (13) is located at the second liquor box (203) on the pipeline and between dense saline solution pump (7), dilute salting liquid tank (14) is located at the first liquor box (103) and dilute salting liquid On pipeline between pump (8).

4. according to a kind of air salting liquid handpiece Water Chilling Units described in claim 3, it is characterised in that：The salting liquid dehumidifying regeneration Liquid liquid plate heat exchanger (15) is additionally provided with circulation loop, the passage of liquid liquid plate heat exchanger (15) side is located at dense saline solution tank (13) on the pipeline and between the first spray equipment (101), it is molten that the passage of liquid liquid plate heat exchanger (15) opposite side is located at dilute salt On pipeline between flow container (14) and the second spray equipment (201).

5. according to a kind of air salting liquid handpiece Water Chilling Units described in claim 1, it is characterised in that：First heat-exchanger rig (102), the second heat-exchanger rig (202), the 4th heat-exchanger rig (401) and the 5th heat-exchanger rig (502) are multilayer calandria structure, Multilayer comb uses one end of plastic production, multilayer comb to be connected with the feed pathway communicated with inlet, multilayer comb The other end is connected with the liquid outlet channel communicated with liquid outlet.

6. according to a kind of air salting liquid handpiece Water Chilling Units described in claim 2, it is characterised in that：Molten in first air channel Air diverter valves (16) are provided between liquid Dehumidifying element (1) and adiabatic humidiflcation heat exchange unit (3), air diverter valves (16) are by side The first air channel between transportation work style road and solution dehumidification unit (1) and the first breeze fan (11) communicates.

7. according to a kind of air salting liquid handpiece Water Chilling Units described in claim 1, it is characterised in that：Second heat exchange circulation The pipeline connected with the inlet of the second heat-exchanger rig (202) in loop is provided with water mixing valve (17), and water mixing valve (17) is in following The outside of ring water pump (10), water mixing valve (17) is by pipeline and the pipeline connection for being connected the second heat-exchanger rig (202) liquid outlet；Institute State the pipeline being connected with the 5th spray equipment (501) in the second shower humidification circulation loop and be provided with check valve (18).

8. according to a kind of air salting liquid handpiece Water Chilling Units described in claim any one of 1-7, it is characterised in that：Also include electric Control unit, electric control unit is used to be controlled the electric distribution and operational factor of each part in unit.

9. according to a kind of air salting liquid handpiece Water Chilling Units described in claim any one of 1-7, it is characterised in that：The solution is removed Wet unit (1), solution regeneration unit (2) and interior cold humidification heat exchange unit (5) are respectively provided with two or more, and solution dehumidification Unit (1), solution regeneration unit (2) and it is interior it is cold humidification heat exchange unit (5) be arranged in groups, in every group solution dehumidification unit (1) and Independent salting liquid dehumidifying regeneration cycle loop is respectively provided between solution regeneration unit (2).

10. according to a kind of air salting liquid handpiece Water Chilling Units described in claim any one of 1-7, it is characterised in that：The solution Dehumidifying element (1), solution regeneration unit (2) and inner-cooled humidify heat exchange unit (5) and are respectively provided with two or more, and solution is removed Salting liquid dehumidifying regeneration cycle loop common pall is provided between wet unit (1) and solution regeneration unit (2), salting liquid dehumidifies again Raw circulation loop common pall includes the reverse pipeline of two liquid flow path directions, and all solution dehumidification units (1) and all solution are again Raw unit (2) forms the salting liquid dehumidifying regeneration cycle loop of mixing by salting liquid dehumidifying regeneration cycle loop common pall.