KR20040050758A - heating and cooling device for hydrogen storage alloys and method thereof - Google Patents

Abstract

PURPOSE: A cooling and heating apparatus using hydrogen storage alloys, and a method for controlling the same are provided to regularly maintain the cooling and heating efficiency, and maximize the performance of a pumping element. CONSTITUTION: A plurality of reactors(110,120,130,140) are filled with a hydrogen storage alloy inside. A hydrogen passage pipe(200) is connected with the reactors, wherein hydrogen flows inside. A pumping element(300) is connected with the hydrogen passage pipe for generating sending power to forcibly send hydrogen from any one pair of reactors to the other pair of reactors. First hydrogen flow guiding elements are connected with the reactors. Second hydrogen flow guiding elements(420) are connected with conduit lines(411,412,413,414) moving in and out hydrogen to the reactors, and are connected with a hydrogen inflow and a hydrogen outflow of the pumping unit.

Description

Heating and cooling device for hydrogen storage alloy and its control method {heating and cooling device for hydrogen storage alloys and method

The present invention relates to a cooling and heating device, and in particular, cooling or heating the surrounding air by using endothermic or exothermic correlations between a reaction between hydrogen and a hydrogen storage alloy to generate cold or warm air, thereby eliminating the need for an outdoor unit. It is intended to provide a device.

In general, hydrogen storage alloys have an exothermic reaction when hydrogen is adsorbed, an endothermic reaction when hydrogen is released, and a heat pump (Hydrogen Storage Alloy) has a large capacity for storing hydrogen. It is known to be used in applications such as heat pumps and hydrogen storage devices.

However, in the related art, the air-conditioning device can be implemented using the above-described hydrogen storage alloy, but it is merely presented conceptually, and no specific system has been implemented in consideration of the characteristics of the hydrogen storage alloy.

In addition, in order to implement a heating and cooling device using a hydrogen storage alloy, although the efficiency of the cooling and heating device should be at least the same as that of an existing heating and cooling device using a conventional refrigerant, there is no study on the correlation or arrangement of various components accordingly. It has not been put to practical use because it has not been achieved.

Of course, in the configuration of the above-described heating and cooling device should be configured to achieve efficient operation of each component.

The present invention has been made to solve the above-described problems, to provide a cooling and heating device that can simplify the overall system by applying a technology using a hydrogen storage alloy to the air-conditioning device to perform a conventional cooling and heating function. will be.

In particular, it is an object of the present invention to provide a cooling and heating apparatus and a method of controlling the same, wherein the pumping means of the cooling and heating apparatus to which the hydrogen storage alloy is applied is continuously operated to obtain uniform cooling and heating efficiency.

1 to 4 is a configuration diagram schematically showing an operating state of the air conditioning and heating device according to the present invention

5 is a flowchart schematically showing an operation control process of an air conditioning and heating apparatus according to the present invention.

Explanation of symbols for the main parts of the drawings

110,120,130,140. Reactor 200. Hydrogen flow tube

300. Pumping means 410. First hydrogen flow guide means

420. Second hydrogen flow guide means 411,421. First line

412,422. 2nd corridor 413,423. Third channel

414,424. Fourth corridor 510,520,530,540. Blower

According to an aspect of the present invention for achieving the above object and a plurality of reactors filled with hydrogen storage alloy; A hydrogen flow path tube connected to each reactor and through which hydrogen flows; Pumping means connected to said hydrogen flow path tube for generating a pressure force for forcibly feeding hydrogen from one pair of reactors to another pair of reactors; First hydrogen flow guide means connected to each of the reactors and a flow path; And a second hydrogen flow guide means connected respectively to the conduit line through which hydrogen outflow into and out of the at least two reactors is made, and connected to the hydrogen inflow / outflow side of the pumping means, respectively. An air conditioning unit is provided.

In addition, according to the control method of the heating and cooling device using the hydrogen storage alloy of the present invention for achieving the above object a first step of driving the pumping means when the operation of the cooling and heating device is made; A second step of continuously reading a reaction change time point when the pumping means is driven; In addition, when the reaction conversion point is reached, a third step: controlling at least one or both of the first hydrogen flow guide means and the second hydrogen flow guide means to change the flow direction of hydrogen is suggested to be repeatedly performed. do.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings of FIGS. 1 to 4 and the flowchart of FIG. 5.

First, the air-conditioning apparatus using the hydrogen storage alloy of the present invention is largely as shown in Figures 1 to 4, a plurality of reactors (110, 120, 130, 140), hydrogen flow path pipe 200, pumping means 300, and the first hydrogen flow guide And means 410 and second hydrogen flow guide means 420.

Each reactor (110, 120, 130, 140) is filled with a hydrogen storage alloy, the illustration according to the specific shape is omitted.

Each of the reactors 110, 120, 130.140 performs an exothermic reaction to heat the ambient air when hydrogen is introduced, and performs an endothermic reaction to cool the ambient air when hydrogen is released.

In particular, the present invention suggests that each of the reactors 110, 120, 130 and 140 as described above are provided in total, and each of the reactors 110, 120, 130 and 140 is connected to the first hydrogen flow guide means 410, respectively.

In addition, the two reactors 120 and 140 connected to the second hydrogen flow guide means 420 among the reactors 110, 120, 130 and 140 as described above are connected to the first hydrogen flow guide means 410 to always perform different reactions.

The hydrogen flow path tube 200 is connected between the reactors 110, 120, 130 and 140 and the pumping means 300, respectively, and is a tube communicated with each other to guide hydrogen flow.

In addition, the pumping means 300 is installed on the pipeline of the hydrogen flow path tube 200, and serves to forcibly transport hydrogen flowing through the hydrogen flow path tube 200 from any two reactors to the other two reactors. Perform.

In this case, the pumping means 300 may be a conventional pump or compressor, but is not limited thereto.

In addition, the first hydrogen flow guide means 410 is connected to each of the four flow paths (411, 412, 413, 414) to the hydrogen flow path pipe 200 connected to each of the reactor (110, 120, 130, 140) serves to determine the pressure of the hydrogen feed.

In the present invention, the first hydrogen flow guide means (410, 420) is composed of a direction control valve having four pipes.

In this case, two pipelines (hereinafter, referred to as “first pipeline” and “second pipeline”) 411 and 412 constituting the first hydrogen flow guide means 410 are the first reactor 110 and the third reactor. And two other pipelines (hereinafter referred to as “third pipeline” and “fourth pipeline”) 413 and 414, respectively, connected to the second reactor 120 and the fourth reactor 140, respectively. .

In particular, the first conduit 411 and the second conduit 412 and the third conduit 413 and the fourth conduit 414 are not in communication with each other.

That is, the first conduit 411 is selectively communicated with only the third conduit 413 or the fourth conduit 414, and the second conduit 412 is connected to the third conduit 413 or the fourth conduit. It is selectively communicated with only the conduit 414, the third conduit 413 is selectively communicated only to the first conduit 411 or the second conduit 412, the fourth conduit 414 is the first It is selectively communicated only with the conduit 411 or the second conduit 412.

At this time, the third conduit 413 is selectively communicated with the first conduit 411 or the second conduit 412, the fourth conduit 414 is the first conduit 411 or, It can be selectively communicated with the second conduit 412 is possible by the connecting conduit 415 constituting the first hydrogen flow guide means 410.

Such, the connecting pipe 415 is made by the solenoid valve (not shown), the detailed description thereof will be omitted.

In addition, the second hydrogen flow guide means 420 is connected to two other pipes (first and second pipes) 421 and 422 respectively at the hydrogen outlet side and the hydrogen inlet side of the pumping means 300, and each of the reactors. Two pipes (the third pipe and the fourth pipe) 423 and 424 are connected to only the second reactor 120 and the fourth reactor 140, respectively.

At this time, the second reactor 120 and the fourth reactor 140 connected to the second hydrogen flow guide means 420 always perform different reactions by the first hydrogen flow guide means 410. .

In particular, the third conduit 423 constituting the second hydrogen flow guide means 420 is selectively communicated with the first conduit 421 or the second conduit 422, the fourth conduit 424 ) May be selectively communicated with the first conduit 421 or the second conduit 422 by the connecting conduit 425 constituting the second hydrogen flow guide means 420.

The connection pipe 425 is made by a solenoid valve (not shown), and a detailed description thereof will be omitted.

In addition, the present invention suggests that each blowing means (510, 520, 530, 540) is further provided for each reactor in addition to the above-described configuration.

At this time, the blowing means (510, 520, 530, 540) serves to selectively blow the heat-exchanged air toward the indoor or outdoor while passing through the reactor (110, 120, 130, 140), a detailed description thereof will be omitted.

In particular, the series of configurations according to the present invention described above allows a plurality of reactors 110, 120, 130, and 140 to be carried out by alternately repeating endothermic and exothermic reactions using one pumping means 300, thereby changing the temperature at the time of reaction conversion. It is to be minimized.

In other words, even if a reaction conversion of any one pair of reactions is carried out, each of the other pairs of reactors maintains the same reaction, so that the heating and cooling temperature can be uniformly maintained.

Hereinafter, with reference to the configuration of Figures 1 to 4 and the flowchart of Figure 5 showing an embodiment according to the operation control process of the heating and cooling device using the hydrogen storage alloy of the present invention configured as described above will be described below. same.

First, if the operation of the air conditioner starts, the controller (not shown) controls each of the hydrogen flow guide means 410 and 420 to introduce hydrogen into any one of the reactors 110, 120, 130 and 140, and to the other two reactors. Causes hydrogen to flow out.

At this time, the two reactors in which the hydrogen is introduced and the two reactors in which the hydrogen is out are paired reactors.

That is, referring to FIG. 1, the controller allows the first conduit 411 and the third conduit 413 of the first hydrogen flow guide means 410 to communicate with each other, as well as the second conduit 412 and the fourth conduit. The connection pipe 415 is controlled so that the 414 communicates with each other.

At this time, the control of the connection pipe 415 is performed by applying power to the first hydrogen flow guide means 410 (ON).

In addition, the controller allows the first conduit 421 and the third conduit 423 of the second hydrogen flow guide means 420 to communicate with each other and the second conduit 422 and the fourth conduit 424. The connection pipe 425 is controlled to communicate with each other.

This is possible by turning on the second hydrogen flow means 420 as well.

Accordingly, exothermic reaction is performed while hydrogen is introduced into the first reactor 110 and the second reactor 120, and the third reactor 120 and the fourth reactor 140 perform an endothermic reaction while hydrogen is released. .

In addition, while the above process is performed, each blowing means (510, 520, 530, 540) is forced to force the outside air to exchange heat while passing through the reactors (110, 120, 130, 140) performing the exothermic or endothermic reaction while the operation is performed. Circulate and discharge to the room or room selectively.

In addition, the controller reads the reaction conversion time of each of the reactor (110, 120, 130, 140) during the process.

In this case, the reaction conversion point is when the hydrogen occlusion of each reactor (110, 120, 130, 140), or when the reaction according to the degassing is performed as necessary to switch the flow direction of hydrogen to switch the reaction of each reactor (110, 120, 130, 140) It is a point for.

In particular, the reaction conversion cycle may be mainly determined by setting a time or counting the reaction allowable temperature or pressure of each of the reactors 110, 120, 130 and 140, and then measuring the temperature or the pressure of each of the reactors 110, 120, 130 and 140. In the present invention, it is suggested that the conversion of the reaction according to the time setting is performed.

If, by the series of processes described above, any reaction switching time is reached, the controller controls the first hydrogen flow guide means 410 to switch the reaction of each reactor 110, 120, 130, 140 connected to the first hydrogen flow guide means 410. Do this.

That is, when the reaction switching time is reached, the first conduit 411 and the fourth conduit 414 of the first hydrogen flow guide means are operated while the connection pipe 415 of the first hydrogen flow guide means 410 operates under the control of the controller. ) Are in communication with each other, and the second conduit 412 and the third conduit 413 communicate with each other.

This is possible by turning off the power of the first hydrogen flow guide means 410, the state of which is as shown in FIG. At this time, the power supply of the second hydrogen flow guide means 420 is continuously maintained (ON).

Accordingly, the first reactor 110 performs an endothermic reaction while hydrogen is desorbed, and the third reactor 130 performs an exothermic reaction while hydrogen is occluded.

At this time, the second reactor 120 performs the exothermic reaction while the hydrogen is continuously occluded, and the fourth reactor 140 performs the endothermic reaction while the hydrogen is continuously desorbed.

As a result, even when the heat exchange effect by each of the reactors 110 and 130 is insignificant at the time point at which the reaction conversion between the first reactor 110 and the third reactor 130 is performed, the second reactor 120 and the fourth reactor 140 may be separated. Continuous heating and cooling of the room is possible by performing continuous reaction.

In addition, the controller continuously reads another arbitrary reaction switching point during the process, and if the random reaction switching point is reached, the controller applies power to the first hydrogen flow guide means 410. At the same time (ON) and the power of the second hydrogen flow guide means 420 is turned off (OFF) so that the reaction conversion between the second reactor 120 and the fourth reactor 140 is performed.

That is, the operation of the connecting pipe 415 by applying the power of the first hydrogen flow guide means 410 is made and connected to the first pipe 411 and the second reactor 120 connected to the first reactor 110. The third conduit 413 communicates with each other and the second conduit 412 connected with the third reactor 130 and the fourth conduit 414 connected with the fourth reactor 140 communicate with each other.

In addition, while the operation of the connecting pipe 425 by the power is cut off of the second hydrogen flow guide means 420 is the hydrogen is discharged through the pipe of the second reactor 120 and at the same time of the fourth reactor 140 Hydrogen is sucked in through the pipeline.

Accordingly, the second reactor 120 performs an endothermic reaction while hydrogen is desorbed, and the fourth reactor 140 performs an exothermic reaction while hydrogen is occluded.

At this time, the first reactor 110 continuously performs the endothermic reaction according to the hernia removal and the third reactor 120 continuously performs the exothermic reaction due to the occlusion of hydrogen. Its state is as shown in FIG.

In addition, if any reaction conversion cycle is reached again after the reaction conversion is made, the controller cuts off the power of the first hydrogen flow guide means 410 to turn off the first reactor 110 and the third reactor 130. Control switching between reactions.

That is, the operation of the connecting pipe 415 is performed by the power cutoff of the first hydrogen flow guide means 410 and the first pipe 411 of the first hydrogen flow guide means 410 is the fourth pipe 414. The second conduit 412 communicates with the third conduit 413. Accordingly, the first reactor 110 performs an exothermic reaction due to the occlusion of hydrogen, and the third reactor 130 performs an endothermic reaction according to the hernia of hydrogen.

At this time, since the second hydrogen flow guide means 420 is continuously turned off (OFF), the second reactor 120 continuously performs the endothermic reaction according to the hernia of the hydrogen and the fourth reactor 140. ) Continuously performs the exothermic reaction due to the occlusion of hydrogen. Its state is as shown in FIG.

On the other hand, if the above-described series of processes were carried out sequentially and the reaction conversion of each reactor (110,120,130,140) was performed for one cycle, the reaction conversion is made to the state of FIG. Is performed.

That is, when the reaction is converted in the state of FIG. 4, the first reactor 110 and the second reactor 120 perform an exothermic reaction according to the occlusion of hydrogen, and the third reactor 130 and the fourth reactor ( 140) is to perform the endothermic reaction according to the hernia of the hydrogen. This is possible by turning on both the power of the first hydrogen flow guide means 410 and the second hydrogen flow guide means 420.

As a result, the above-described process enables continuous repetitive driving without interrupting the operation of the pumping means 300, so that a continuous action can be achieved with a uniform load.

In addition, the cooling and heating efficiency according to the reaction of each reactor (110,120,130,140) is able to maintain a uniform degree continuously.

As described above, the air conditioning system of the present invention has the effect that the size of the overall system does not need to be enlarged in proportion to the size of the reactor, even if each reactor is enlarged, even if each reactor is enlarged.

In particular, the present invention not only has the effect of enabling uniform maintenance of the heating and cooling efficiency, but also has the effect of making the most of the performance of the pumping means.

Claims (8)

A plurality of reactors filled with hydrogen storage alloys; A hydrogen flow path tube connected to each reactor and through which hydrogen flows; Pumping means connected to said hydrogen flow path tube for generating a pressure force for forcibly feeding hydrogen from one pair of reactors to another pair of reactors; First hydrogen flow guide means connected to each of the reactors and a flow path; And, And a second hydrogen flow guide means connected to the hydrogen inlet / outlet side of the pumping means, respectively, connected to a conduit line through which hydrogen inflow and outflow into at least two reactors is performed. . The method of claim 1, Each reactor It is provided with a total of four, the heating and cooling device using a hydrogen storage alloy, characterized in that each connected to the first hydrogen flow guide means. The method of claim 1, The first hydrogen flow guide means Have four conduits connected to each reactor, The heating and cooling device using a hydrogen storage alloy, characterized in that the two pipes of each of the pipes are connected to each other, or comprises a connection pipe operating to achieve a blocked state. The method of claim 1, Each reactor connected with the second hydrogen flow guide means Cooling and heating device using a hydrogen storage alloy, characterized in that connected to each of the lines of the first hydrogen flow guide means to perform a different reaction. The method of claim 1, The second hydrogen flow guide means Two pipelines each connected to the hydrogen inlet and outlet pipelines of either reactor, Two pipelines each connected to a hydrogen outlet side and a hydrogen inlet line of the pumping means, and A heating and cooling device using a hydrogen storage alloy, characterized in that it comprises a connecting pipe which operates to selectively communicate between any one of the reactor and the hydrogen outlet side, or hydrogen inlet side. A first step of driving the pumping means when the operation of the air conditioner is performed; A second step of continuously reading a reaction change time point when the pumping means is driven; And, When the reaction conversion point is reached, the third step of changing the flow direction of hydrogen by controlling at least one or both of the first hydrogen flow guide means and the second hydrogen flow guide means is carried out sequentially. Control method of air conditioning system using storage alloy. The method of claim 6, The control process of each hydrogen flow guide means for changing the flow direction of hydrogen A first step of applying power to each hydrogen flow guide means; A second step of shutting off the power of the first hydrogen flow guide means when the reaction time reaches any reaction point after the first step; A third step of applying power of the first hydrogen flow guide means and shutting off power of the second hydrogen flow guide means when the reaction reaches a certain reaction switching time after the second process; A fourth process of shutting off the power of the first hydrogen flow guide means when the reaction time reaches a reaction switching point after the third process; When the reaction time of any reaction after the fourth process is reached, the control method of the heating and cooling device using a hydrogen storage alloy, characterized in that is performed by being repeated again from the first process. The method according to any one of claims 6 to 7, The readout at the reaction transition point Characterized in that it is performed by checking whether the reaction time according to the set time period, the temperature of each reactor or the pressure of each reactor is required, and at least one of the time points as needed. Control method of cooling and heating device using hydrogen storage alloy.