KR101834881B1 - Adsorption type desalination system with time shifting of heat pump - Google Patents

Abstract

The present invention relates to a heat pump-coupled absorption desalination system applying time shifting for recovering fresh water from seawater, comprising: an evaporation unit for evaporating water vapor contained in seawater; A reactor for adsorbing water vapor supplied from the evaporation unit on the surface of the silica gel cooled by a cold source and then supplying a heat source to the silica gel to desorb water vapor from the silica gel; A condensing unit for condensing desorbed water vapor in the reactor to recover fresh water; A cold / hot supply module connected to the reactor to provide a cold source and a hot source for adsorption and desorption of water vapor; And a controller for controlling communication between the evaporation unit and the condensing unit and the reactor in a supply direction of a cold source and a warm source provided to the reactor in the cold / hot provision module, Wherein half of the reaction vessels perform adsorption through a cold source supplied from the cold / hot supply module under the control of the controller, And the other half of the reaction vessels performs desorption through a heat source supplied from the cold / hot supply module.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a desiccant type desalination system,

The present invention relates to a desalting desalination system for desalinating seawater, and more particularly, to a desalination desalination system for desalinating seawater, and more particularly, to a desalting desalination system for desalinating seawater, A heat pump-type absorption type system in which time-shifting is applied to improve the desalination efficiency by shifting the supply of a heat source of heat source and a source of heat source after completion of one desalination process, And a desalination system.

Recently, many technologies for desalination of various seawater including deep sea water have been developed.

As a typical seawater desalination process, a membrane distillation (evaporation) method, an electrodialysis method, and a reverse osmosis (RO) method are mainly used. Here, the reverse osmosis method, which is mainly used, is a process of obtaining fresh water by applying a pressure higher than osmotic pressure to the influent water by using a high-pressure pump after pre-treatment. Since the flux becomes high due to high pressure, the contamination is large. Therefore, there is a disadvantage that consumption power is large.

On the other hand, there is another desalination desalination system as another seawater desalination process.

Specifically, the adsorption desalination system separates and separates water (fresh water) from seawater through an evaporator, adsorbs the water vapor on the surface of the silica gel in the adsorption process, desorbs water vapor from the surface of the silica gel in the desorption process, To the condenser and condenses it into a liquid state to recover the fresh water.

In this case, a desiccant desalination system requires a source of heat to adsorb the water vapor to the silica gel in the adsorption process, and a heat source is necessary to desorb the water vapor from the silica gel in the desorption process.

For this purpose, in the conventional adsorption desalination system, although the heat source is supplied using the fossil energy, the operation cost is greatly increased, the system efficiency is lowered, and a separate heat source is required.

Korean Registered Patent No. 10-1258433 Korean Registered Patent No. 10-1556915

The present invention has been made in order to solve the problems of the related art as described above, and it is an object of the present invention to provide a method for desalinating seawater, It is an object of the present invention to provide a heat pump-coupled desiccant desalination system which is capable of reducing energy consumption by providing a cold source and a source of heat and applying time shifting to simplify the apparatus.

In the present invention, a plurality of reactors in which a reaction with silica gel is performed are provided by simultaneously supplying a heat source and a heat source of a heat pump, and after one cycle of desalination, A desiccant desalination system connected with a heat pump to which desorption is performed in a preheater while adsorbing the desiccant in a preheater to improve the desalination efficiency.

It is another object of the present invention to provide a heat pump-coupled adsorption-type desalination system to which time shifting for reusing a heat source and a heat source discharged from a reactor is applied.

According to an aspect of the present invention, there is provided an adsorption-type desalination system for recovering fresh water from seawater, comprising: an evaporation unit for evaporating water vapor contained in seawater; A reactor for adsorbing water vapor supplied from the evaporation unit on the surface of the silica gel cooled by a cold source and then supplying a heat source to the silica gel to desorb water vapor from the silica gel; A condensing unit for condensing desorbed water vapor in the reactor to recover fresh water; A cold / hot supply module connected to the reactor to provide a cold source and a hot source for adsorption and desorption of water vapor; And a controller for controlling communication between the evaporation unit and the condensing unit and the reactor in a supply direction of a cold source and a warm source provided to the reactor in the cold / hot provision module, Wherein half of the reaction vessels perform adsorption through a cold source supplied from the cold / hot supply module under the control of the controller, And the remaining half of the reaction vessels can be desorbed through the heat source supplied from the cold / hot supply module.

For example, the cold / hot supply module includes a compressor, a condenser, an expansion valve, and an evaporator, circulates the refrigerant, forms a single independent cycle, generates a heat source through the condenser, ; A heating line connecting the condenser of the heat pump and the reactors constituting the reactor in a closed loop state and supplying a heat source generated in the condenser of the heat pump to the half reaction vessel; And a cooling line connecting the evaporator of the heat pump and the reactors constituting the reactor in a closed loop state and supplying a heat source generated by the evaporator of the heat pump to the other half of the reaction vessels .

The reactor is composed of four reaction tanks connected to the evaporation unit and the condensing unit and connected to the cold / hot supply module, respectively, while being separated from each other. By controlling the controller, Respectively.

Here, the controller supplies a cold source of the cold / hot supply module to the two reaction tanks of the four reaction tanks, sets the two reaction tanks as the pre-cooler and the adsorbent, respectively, while communicating the reaction vessel set with the adsorption unit with the evaporation unit, The hot water source of the cold / hot supply module is supplied to the remaining two reaction tanks of the four reaction tanks and the remaining two reaction tanks are set as the preheater and the desorber, respectively, and the reaction tank set as the desorber communicates with the condensing unit to desalinate the water vapor After one cycle of desalination process is completed, the supply direction of the cold source and the warm source is shifted to set the reaction vessel set as the precooler in the previous cycle as the adsorber, and the reactor set as the preheater is desorbed by the desorber And set the tank to be the adsorber in the previous cycle. The desalination unit can be set as the preheater and the desalination unit can be set as the precooler to perform the desalination process in the next cycle.

Alternatively, the controller may set the two reaction vessels as the pre-cooler and the adsorbent and the remaining two reaction vessels as the pre-heater and the desorber, respectively, A heat source and a cold source of the module are respectively supplied to the reaction unit, and a reaction tank set as an adsorber is communicated with the evaporation unit while a reaction tank set as a desorber communicates with the condensation unit, And the heat source discharged from the reaction tank set as a desorber is bypassed to the cold / hot supply module through a reaction tank set as a pre-heater to perform one cycle of desalination process, After the desalination process is completed, the supply direction of the cold source and the hot source is The reaction tank set as the preheater is set as the desorber and the reaction tank set as the adsorbent in the previous cycle is set as the preheater while the reaction tank set as the desorber is set as the precooler, Cycle desalination process may be performed.

The evaporation unit, the reactor, and the condensing unit may be connected to the cold / hot supply module while forming one main desalination module, and configured in the same manner as the main desalination module, and connected between the cold / hot provision module and the main desalination module And a sub desalination module for desalinating the seawater through a cold source and a hot source discharged from the main desalination module and then bypassing a cold source and a hot source to the cold / .

According to the heat pump-coupled absorption desalination system applying time shifting according to the present invention, the heat pump constituting the cold / hot supply module provides a heat source for the desorption process through the condenser, By providing the circle, it is possible to provide the heat source and the heat source as a single device, which can simplify the configuration and volume of the facility and reduce the energy consumption compared to the existing equipment.

In addition, the present invention is characterized in that the reactor is constituted of four reaction tanks and is set to a pre-cooler, an adsorber, a pre-heater and a desorber under the control of a controller to perform a desalination process for one cycle, And the preheater of the previous cycle is set as a desorber, the heat efficiency is improved, so that the adsorption and desorption of water vapor can be smoothly performed.

In addition, in the present invention, when the heat source discharged from the desorber is bypassed by the heat pump through the preheater while the cold source discharged from the adsorber is bypassed by the heat pump through the precooler among the four reactors, The flow rate of the heat source can be reduced.

In the present invention, when the sub-desalination module that is independent of one desalination module is provided, the hot and cold sources discharged from the desalination module can be recovered and recycled.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a heat pump-coupled absorption desalination system to which time shifting according to a first embodiment of the present invention is applied; FIG.
FIG. 2 is an explanatory view showing a second cycle of the desalination process by the desalination system shown in FIG. 1; FIG.
3 is an explanatory view showing a third cycle of the desalination process by the desalination system shown in Fig. 1; Fig.
Fig. 4 is an explanatory view showing a fourth cycle of the desalination process by the desalination system shown in Fig. 1; Fig.
5 is a view showing a heat pump-coupled absorption desalination system to which time shifting according to the second embodiment of the present invention is applied.
6 is a view showing a heat pump-coupled absorption desalination system to which time shifting according to the third embodiment of the present invention is applied.

Hereinafter, embodiments of the present invention will be described in more detail with reference to the accompanying drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises ", or" having ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

1, the first embodiment of a heat pump-coupled absorption desalination system to which time shifting according to the present invention is applied comprises an evaporation unit 100, a reactor 200, a condensation unit 300, a cold / hot supply module 400 and a controller.

The evaporation unit 100 is a component that evaporates and separates water (fresh water) from seawater.

The evaporation unit 100 may be supplied with seawater or deep sea water through an unillustrated pretreatment unit composed of sand filtration, a microfiltration membrane (MF), an ultrafiltration membrane (UF) or the like, separates water vapor from the supplied seawater, To the adsorber of the reactor (200).

For example, the evaporation unit 100 may be configured to heat seawater to a high temperature while providing a vacuum pressure to evaporate and separate water (fresh water) from seawater.

The reactor 200 is a component that provides desorbed water vapor to the condensation unit 300, which will be described later, after adsorbing and desorbing the separated water vapor from the evaporation unit 100.

The reactor 200 is preferably composed of a plurality of reaction vessels with silica gel incorporated therein and is preferably supplied with a cold source and a warm source from a cold / hot supply module 400, and more preferably four reaction vessels 210 and 220, (230) and (240), respectively, and may be set as a preheater, a desorber, a precooler, and an adsorber to perform the desalination process.

1, when the evaporator 100 is used as an adsorber, the reactor 200 is cooled by a heat source and communicated with the evaporator unit 100 (refer to a blue arrow) When it is used as a desorbing unit, it is desorbed from the silica gel while being heated by a heat source and communicated with the condensing unit 300 (refer to a red arrow), which is described later, and the desorbed water vapor is introduced into the condensing unit 300 ).

The condensing unit 300 is a component for collecting the fresh water by condensing the water vapor desorbed from the desorbing unit constituting the reactor 200 into a liquid state.

The condensing unit 300 may be configured to cool the condensed water vapor supplied from the reactor 200, collect the condensed water, and collect the fresh water.

The cold / hot supply module 400 is a component that simultaneously provides a cold source and a hot source for adsorption and desorption of water vapor in the reactor 200.

Specifically, the cold / hot supply module 400 may include a heat pump 410, a heating line 420, and a cooling line 430, as shown in FIG.

The heat pump 410 provides a condensation heat and an evaporation heat while forming a refrigeration cycle of the refrigerant and includes a compressor 411, a condenser 412, an expansion valve 413 and an evaporator 414, And generates a low-temperature cold source while evaporating the refrigerant through the evaporator 414. The low-

The heating line 420 connects the condenser 412 of the heat pump 410 and the reaction vessels constituting the reactor 200 in a closed loop state as shown in FIG. 1, and supplies the heat source generated in the condenser 412 to the pre- And supplied to the reaction tank set as the desorbing unit.

The cooling line 430 connects the evaporator 414 of the heat pump 410 and the reaction vessels constituting the reactor 200 in a closed loop state while supplying a cold source of heat generated in the evaporator 414 to a pre- do.

The controller is a component that provides communication between the evaporator unit 100 and the condenser unit 300 and the reactor 200 while controlling the supply direction of the heat source and the heat source provided by the cold /

As shown in FIG. 1, the controller supplies the heat source provided from the heat pump 410 while setting the two reaction vessels 210 and 220 among the four reaction vessels as a pre-heater and a desorber, 230) 240 are set as the cooler and the adsorber, respectively, and the heat source provided by the heat pump 410 is supplied.

The controller communicates the reaction tank set as the adsorption unit with the evaporation unit 100 to adsorb water vapor, communicates the reaction tank set as the desorption unit with the condensation unit 300, supplies the desorbed water vapor to the condensation unit 300, The desalination process is performed.

That is, the controller performs the desalination process by setting the reaction vessels 210, 220, 230, and 240 in the order of the preheater, desorber, precooler, and adsorber in the order of the first desalination process cycle .

Referring to FIG. 2, when the desalination process of the second cycle is performed, the controller shifts the supply direction of the heat source and the heat source to remove the reaction vessels 210, 220, 230 and 240 from the desorber, Cold air, adsorber, preheater, and desalination process.

That is, the controller shifts and sets the reactor set as the precooler in the previous cycle to the adsorber, and shifts the reactor set as the preheater in the previous cycle to the desorber.

Therefore, the reaction tank set as the adsorber is used as the precooler in the previous cycle and is used as the adsorber, so that the adsorption of the water vapor is smoothly performed sufficiently, and the reaction tank used as the desorber is used as the preheater So that the water vapor can be sufficiently heated and desorbed smoothly.

Referring to FIG. 3, when the desalination process is performed in the third cycle, the controller shifts the supply directions of the heat source and the heat source to transfer the reaction vessels 210, 220, 230, and 240 to the pre- , The preheater, and the desorber are sequentially set to perform the desalination process.

Referring to FIG. 4, when the desalination process is performed in the fourth cycle, the controller shifts the supply directions of the heat source and the heat source to transfer the reaction vessels 210, 220, 230 and 240 to the adsorber, Desorber, and cooler, and the desalination process is performed.

That is, according to the present invention, the desalination cycle is repeated while the controller shifts the heat source and the heat source in the direction of supply of heat, so that the reaction tank is used as a precooler in a previous cycle and then used as an adsorber Since the used reaction tank is used as a desorber, the cooling and heating efficiency of the reaction tank is improved and the adsorption and desorption of water vapor can be smoothly performed.

On the other hand, the controller can time-shift each process while controlling the source of heat and the source of heat supplied to the reaction tank in the pattern as shown in Fig.

7, the controller controls the first reaction tank 1 to be started in the order of pre-cooling, adsorption, preheating, and desorption so as to perform one cycle, and the second reaction tank 2 is preheated, Pre-cooling, and adsorption, so as to perform the process of one cycle, while controlling the process switching of the second reaction tank 2 to be performed at the same time interval with the first reaction tank 1 in a first paired state.

The controller starts the adsorption, preheating, desorption, and precooling steps of the third reaction vessel 3 so as to perform a one-cycle process. The fourth reaction vessel 4 is desorbed, pre-cooled, adsorbed, Cycle so that process switching of the four reaction vessels 4 is performed at the same time intervals in the second pair state together with the third reaction vessels 3. [

Here, the controller controls the pre-cooling and preheating process time of the reaction vessels to be longer than the adsorption and desorption process time, as shown in FIG. 7, while a second pair of pre-cooling and preheating process is performed in the latter half of the first pair of adsorption and desorption processes And performs time shifting to control the processing to proceed.

That is, Reactors 1, 2, 3, and 4 initially initiate pre-cooling, preheating, adsorption, and desorption processes, respectively. After switching time, Reactor 1 and Reactor 2, which have performed the preheating and precooling processes, respectively, enter the adsorption and desorption processes. At this time, Reactors 3 and 4 started the adsorption and desorption processes earlier than Reactor 1 and Reactor 2 by the conversion time, so the process ends first and goes into preheating and precooling process, respectively. At this time, Reactor 1 and Reactor 2 proceed to the last half of the adsorption and desorption process, respectively.

Reactions 1 and 2 change their roles when half-period is reached, ie Reactor 1 starts the process that Reagent 2 performed before the half-period. Since reactors 1 and 2 are pair reactors, reactor 2 also undergoes the same process switching. Reactor 3 performs the process that was performed prior to half a week by Reactor 4 in a similar manner. At one cycle, each reactor repeats the same process that was performed one cycle earlier.

When such time shifting is carried out, hot water and cold water are exchanged into two reactors, ie, reactors 1 and 2, and 3 and 4, which are paired. In other words, the temperature of reactor 1 is inversely correlated with the temperature of reactor 2, but is essentially independent of the other reactors 3 and 4. Therefore, the temperature of the reactors 1 and 2 does not need to have a special relationship with the temperatures of the reactors 3 and 4 as shown in FIG.

Referring to FIG. 8, the reactor may further include additional reaction vessels 5, 6, 7, and 8 configured in the same manner as the four reaction vessels described above.

At this time, the controller is supplied to the four reaction tanks 1, 2, 3, and 4 and the four additional reaction tanks 5, 6, 7, and 8 as shown in FIG. 8 (a) Thereby controlling the heat source and the heat source.

Specifically, the controller controls the fifth reaction vessel 5 to start the adsorption, preheat, desorption, and pre-cooling steps in order to complete one cycle, and starts the sixth reaction vessel 6 in the order of desorption, precooling, adsorption, The process of the sixth reaction vessel 6 is controlled so as to be performed at the same time interval in the third pair state together with the fifth reaction vessel 5. [

The controller controls the seventh reaction tank 7 to start the adsorption, preheat, desorption, and pre-cooling steps so as to complete one cycle, and starts the desorption, precooling, adsorption, Cycle so that the processing of the eighth reaction vessel 8 is performed at the same time interval as the fourth reaction vessel 7 together with the seventh reaction vessel 7.

The controller also controls the pre-cooling and preheating process times of each of the additional reaction vessels to be longer than the adsorption and desorption process times, so that the third pair of pre-cooling and pre-heating processes are performed in the latter half of the second pair of adsorption and desorption processes And controlling the fourth pair of pre-cooling and preheating processes to proceed to a second half of the third pair of adsorption and desorption processes, wherein the first pair of pre-cooling and pre-heating And performs time shifting to control the process to proceed.

Fig. 8 (a) shows the reactor number, and Fig. 8 (b) shows the reconstitution based on the start period and the cycle of the process. That is, each reactor performs preheating and precooling at any specific time, and each of the reactors performing adsorption and desorption is three. In this case, the evaporator and the condenser are in a thermodynamic state which is more stable than that of FIG. 7 and minimally fluctuating, thus greatly contributing to the operation of the entire adsorption desalination process.

The absorption desalination system according to the second embodiment of the present invention is constructed in the same manner as the first embodiment described above, and the supply of the heat source and the heat source by the controller are controlled differently from each other.

Specifically, the controller sets the reaction vessels 210, 220, 230, and 240 as a preheater, a desorber, a pre-cooler, and an adsorber as shown in FIG. 5 in the desalination system according to the second embodiment, A heating source is supplied only to the set reaction tank and communicated with the condensing unit 300, and at the same time, the cooling source is supplied only to the reaction tank set as the adsorption unit so as to communicate with the evaporation unit 400.

Then, the controller bypasses the cold heat source discharged from the reaction tank set as the adsorption unit to the heat pump 410 via the reaction tank set as the precooler, and the heat source discharged from the reaction tank set as the desorption unit is passed through the reaction tank set as the preheater And is bypassed to the heat pump 410.

That is, in the first embodiment, the hot source is simultaneously supplied to the pre-heater and the desorber, and the cold source is simultaneously supplied to the pre-cooler and the adsorber. In contrast, in the second embodiment, .

Therefore, in the second embodiment, the flow rate of the heat source and the heat source can be reduced as compared with the first embodiment.

Of course, in the second embodiment, the controller performs the desalination process of the next cycle while shifting the setting of the reactors after one desalination process cycle is completed.

In the adsorption-type desalination system according to the third embodiment, the configuration of the sub-desalination module 20 may be further added as shown in FIG.

That is, in the third embodiment, the evaporation unit 100, the reactor 200, and the condensation unit 300 are connected to the cold / hot supply module 400 while forming one main desalination module 10, 20 have the same construction as the main desalination module 10 and are connected between the cold / hot provision module 400 and the main desalination module 10 to form a communication path of the cold source and the hot source.

Accordingly, the sub-desalination module 20 performs another desalination process through a heat source and a heat source discharged from the main desalination module 10.

As described above, in the heat-pump-coupled absorption desalination system using the time shifting according to the present invention, the heat pump 410 constituting the cold / hot supply module 400 is connected through the condenser 412 to the heat And at the same time provides a heat source for the adsorption process through the evaporator 414, it is possible to provide the heat source and the heat source as a single device, so that the structure and volume of the equipment can be simplified, The reactor 200 is constituted by four reaction vessels 210, 220, 230 and 240 and is set as a pre-cooler, an adsorber, a pre-heater and a desorber under the control of a controller After one cycle of the desalination process, the settings of the reaction vessels 210, 220, 230 and 240 are shifted to set the precooler of the previous cycle to the adsorber and the preheater of the previous cycle to the desorber Thermal effect The rate of adsorption and desorption of water vapor can be improved smoothly.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It will be apparent to those skilled in the art that various changes, substitutions, and alterations can be made therein without departing from the spirit of the invention.

100: evaporation unit
200: reactor
210, 220, 230, 240:
300: condensation unit
400: cold / hot supply module
410: Heat pump
411: Compressor
412: Condenser
413: Expansion side
414: Evaporator
420: heating line
430: Cooling line

Claims (9)

A desalting desalination system for recovering fresh water from seawater,
An evaporation unit for evaporating water (fresh water) contained in seawater;
A reactor for adsorbing water vapor supplied from the evaporation unit on a surface of an adsorbent cooled by a cold source and providing a heat source to the adsorbent to desorb water vapor from the adsorbent;
A condensing unit for condensing desorbed water vapor in the reactor to recover fresh water;
A cold / hot supply module connected to the reactor to provide a cold source and a hot source for adsorption and desorption of water vapor; And
And a controller for controlling communication between the evaporation unit and the condensing unit and the reactor in the supply direction of a cold source and a warm source provided to the reactor in the cold /
The reactor comprises:
A plurality of reaction vessels each containing the adsorbent and connected to the evaporation unit and the condensing unit, respectively, and a reaction tank of some of the reaction vessels is adsorbed through a cold source supplied from the cold / And the other of the reaction vessels performs desorption through a heat source supplied from the cold / hot supply module,
The reactor comprises:
And four reaction tanks connected to the evaporation unit and the condensation unit and connected to the cold / hot supply module, respectively, while being separated from each other, and a cold source and a hot source are respectively supplied under the control of the controller,
The controller comprising:
A cooling source of the cold / hot supply module is supplied to two reaction tanks of the four reaction tanks, two reaction tanks are set as pre-coolers and adsorbers, respectively, and a reaction tank set as an adsorber communicates with the evaporation unit to adsorb steam, The heat source of the cold / hot supply module is supplied to the remaining two reaction tanks of the reaction tank, and the remaining two reaction tanks are set as the preheater and the desorber, respectively, while the reaction tank set as the desorber communicates with the condensing unit to desalinate the steam, Lt; / RTI &
After the completion of one cycle of the desalination process, the supply direction of the cold source and the warm source is shifted to set the reaction vessel set as the preheater as the desorber while setting the reaction vessel set as the precooler in the previous cycle as the adsorber, Is set as a preheater, and a reaction tank set as a desorber is set as a precooler, and a desalination process of the next cycle is carried out, wherein the desalination process is performed in the next cycle.
The method according to claim 1,
The cold /
A heat pump which is constituted by a compressor, a condenser, an expansion valve, and an evaporator, circulates the refrigerant, forms a single independent cycle, generates a heat source through the condenser, and generates a heat source through the evaporator;
A heating line connecting the condenser of the heat pump and the reactors constituting the reactor in a closed loop state and supplying a heat source generated in the condenser of the heat pump to a half of the reaction vessels; And
And a cooling line connecting the evaporator of the heat pump and the reaction vessels constituting the reactor in a closed loop state and supplying a heat source generated from the evaporator of the heat pump to the other half of the reaction vessels, Heat Pump - Associated Adsorption - type Desalination System.
delete delete A desalting desalination system for recovering fresh water from seawater,
An evaporation unit for evaporating water (fresh water) contained in seawater;
A reactor for adsorbing water vapor supplied from the evaporation unit on a surface of an adsorbent cooled by a cold source and providing a heat source to the adsorbent to desorb water vapor from the adsorbent;
A condensing unit for condensing desorbed water vapor in the reactor to recover fresh water;
A cold / hot supply module connected to the reactor to provide a cold source and a hot source for adsorption and desorption of water vapor; And
And a controller for controlling communication between the evaporation unit and the condensing unit and the reactor in the supply direction of a cold source and a warm source provided to the reactor in the cold /
The reactor comprises:
A plurality of reaction vessels each containing the adsorbent and connected to the evaporation unit and the condensing unit, respectively, and a reaction tank of some of the reaction vessels is adsorbed through a cold source supplied from the cold / And the other of the reaction vessels performs desorption through a heat source supplied from the cold / hot supply module,
The reactor comprises:
And four reaction tanks connected to the evaporation unit and the condensation unit and connected to the cold / hot supply module, respectively, while being separated from each other, and a cold source and a hot source are respectively supplied under the control of the controller,
The controller comprising:
Among the four reaction vessels, the two reaction vessels are set as the pre-cooler and the adsorbent, respectively, while the remaining two reaction vessels are set as the pre-heater and the desorber, respectively. Only the reaction vessel set as the adsorbent and the de- A reaction tank set as an adsorber communicates with the evaporation unit, and a reaction tank set as a desorber communicates with the condensation unit,
The cold source discharged from the reaction tank set as the adsorber is bypassed to the cold / hot supply module via the reaction tank set as the pre-cooler, and the hot source discharged from the reaction tank set as the desorber is connected to the cold / Bypassing, one cycle of desalination process is performed,
After the completion of one cycle of the desalination process, the supply direction of the cold source and the warm source is shifted to set the reaction vessel set as the preheater as the desorber while setting the reaction vessel set as the precooler in the previous cycle as the adsorber, Is set as a preheater, and a reaction tank set as a desorber is set as a precooler, and a desalination process of the next cycle is carried out, wherein the desalination process is performed in the next cycle.
A desalting desalination system for recovering fresh water from seawater,
An evaporation unit for evaporating water (fresh water) contained in seawater;
A reactor for adsorbing water vapor supplied from the evaporation unit on a surface of an adsorbent cooled by a cold source and providing a heat source to the adsorbent to desorb water vapor from the adsorbent;
A condensing unit for condensing desorbed water vapor in the reactor to recover fresh water;
A cold / hot supply module connected to the reactor to provide a cold source and a hot source for adsorption and desorption of water vapor; And
And a controller for controlling communication between the evaporation unit and the condensing unit and the reactor in the supply direction of a cold source and a warm source provided to the reactor in the cold /
The reactor comprises:
A plurality of reaction vessels each containing the adsorbent and connected to the evaporation unit and the condensing unit, respectively, and a reaction tank of some of the reaction vessels is adsorbed through a cold source supplied from the cold / And the other of the reaction vessels performs desorption through a heat source supplied from the cold / hot supply module,
The reactor comprises:
And four reaction tanks connected to the evaporation unit and the condensation unit and connected to the cold / hot supply module, respectively, while being separated from each other, and a cold source and a hot source are respectively supplied under the control of the controller,
The controller comprising:
A cold source and a hot source supplied to the four reaction tanks,
The first reaction tank is controlled to be a one-cycle process by starting in the order of pre-cooling, adsorption, preheating, and desorption,
The second reaction tank is controlled to be started in the order of preheating, desorption, precooling, and adsorption so that the process of one cycle is carried out, while the process of the second reaction tank is controlled to be performed at the same time interval with the first reaction tank In addition,
The third reaction tank is controlled to be in a one-cycle process by starting with adsorption, pre-heating, desorption, and pre-cooling,
The fourth reaction tank is controlled to be a one-cycle process starting from the desorption, pre-cooling, adsorption, and preheat sequence, so that the process shift of the fourth reaction tank is performed at the same time interval as the second reaction with the third reaction tank Control,
The preheating and preheating process time of each reaction tank is controlled to be longer than the adsorption and desorption process time so that the preheating and preheating process of the second pair is performed in the latter half of the first pair of adsorption and desorption processes A heat pump coupled type desorption desalination system applying time shifting.
The method of claim 6,
The reactor comprises:
And further comprises four additional reaction vessels added and constructed in the same manner as the four reaction vessels,
The controller comprising:
The four heat reactors and the four additional reactors,
The fifth reaction tank is controlled to be one cycle by starting adsorption, preheating, desorption, and precooling,
The sixth reaction tank is controlled to be in a cycle of 1 cycle starting from desorption, precooling, adsorption, and preheating in order, and the process shift of the sixth reaction tank is controlled to be performed at the same time interval with the fifth reaction tank in a third pair state In addition,
The seventh reaction vessel is controlled to be a one-cycle process by starting with adsorption, preheating, desorption, and pre-cooling,
The eighth reaction tank is controlled to be in a cycle of 1 cycle starting from the desorption, precooling, adsorption, and preheating steps so that the process shift of the eighth reaction tank is performed at the same time interval as the fourth reaction with the seventh reaction tank Control,
Controlling the pre-cooling and preheating process of the third pair to proceed to the latter half of the second pair of adsorption and desorption processes while controlling the pre-cooling and preheating process time of each additional reaction bath to be longer than the adsorption and desorption process time, Controlling the pre-cooling and preheating process of the fourth pair to proceed in the latter half of the three pairs of adsorption and desorption processes and controlling the pre-cooling and preheating process of the first pair to proceed to the latter half of the fourth pair of adsorption and desorption processes Wherein the heat pump is connected to the heat pump.
The method according to claim 1,
The evaporation unit, the reactor, and the condensing unit are connected to the cold / hot supply module while forming one main desalination module,
The main desalination module is constructed in the same manner as the main desalination module, and is connected between the cold / hot provision module and the main desalination module to form a communication path between a cold source and a hot source. Further comprising a sub-desalination module for desalinating and then bypassing the cold source and the hot source to the cold / hot supply module.
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