JP2014100452A - Air cleaning machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaning machine in which a harmful gas composition included in fluid such as air can be satisfactorily removed, and pressure drop can be made low.SOLUTION: An air entrance 3 and an air exit 4 are disposed at a machine body 2, and a fan 5 is disposed in the machine body 2, two or more flat box-like absorbent cases 7 having air permeability and comprising charging an absorbent 6 are detachably disposed in the machine body 2 between the air entrance 3 and the air exit 4, air that enters in the air entrance 3 passes at least one flat box-like absorbent case 7, and discharges from the air exit 4, an average passage speed of the air per one flat box-like absorbent case 7 is at most 0.5 m/second, and an average pressure drop of the air per one flat box-like absorbent case is made at most 70 Pa.

Description

  The present invention relates to an air purifier that maintains the maximum adsorption performance of an adsorbent such as activated carbon and suppresses the pressure loss to the maximum, and more specifically, a flat box that is breathable and filled with an adsorbent. A plurality of adsorbent cases are detachably arranged, and the average passing speed per one flat box-shaped adsorbent case of air entering from the air inlet is 0.5 m / sec or less. The pressure loss relates to an air cleaner whose pressure is 70 Pa or less.

  The air cleaner usually has a pre-filter 53 for removing coarse particles floating in the air in order from the air inlet 50 in the machine main body 52 provided with the air inlet 50 and the air outlet 51, and electricity for removing fine particles. A dust collector 54 or a mechanical filter 55; an adsorbent 56 such as activated carbon that removes odors contained in the air; and a fan 57 that takes air into the machine body 52 from the air inlet 50 and discharges it from the air outlet 51. They are arranged sequentially (see FIG. 7).

  However, when such an air purifier is used indoors, in order to reduce noise and power consumption generated from the fan 57, air is taken in from the air inlet 50, cleaned, and discharged from the air outlet 51. It is necessary to reduce the pressure loss as much as possible. Reducing the pressure loss can lower the pressure performance when the fan 57 is used, and as a result, noise can be reduced and power consumption can be reduced. Therefore, pressure loss is reduced by sacrificing the performance of removing particles and odors in the air to some extent. Generally, when air is cleaned using the pre-filter 53, the electrostatic precipitator 54 or the mechanical filter 55, and the adsorbent 56, the pressure loss increases as the cleanliness increases. Will do.

  That is, instead of making the performance as an air purifier close to perfection, an increase in noise and power consumption generated from the fan 57 is allowed, or instead of reducing noise and power consumption generated from the fan 57, air Is it acceptable to sacrifice some performance as a cleaner? Installing an air purifier indoors should have a major purpose of purifying indoor air. However, if a new inconvenience of noise occurs in order to achieve the purpose, the meaning of the installation will be significantly reduced, so the performance of removing particles and odors in the air as described above However, the pressure loss is reduced to reduce noise and power consumption at the expense of a certain amount.

  Under such circumstances, when performing operations such as adsorption and removal of harmful gas components in the fluid, a fluid passage having a fluid flow resistance and having a flow resistance is provided in the processing chamber, and the fluid permeable wall in the processing chamber is provided within the processing chamber. An adsorbent such as activated carbon is housed, and the fluid containing the harmful gas component introduced into the processing chamber is brought into surface contact with the adsorbent in the fluid permeable wall in the process of passing through the fluid passage. There is a technique for reducing the pressure loss in an operation such as adsorption removal of harmful gas components of fluid by bringing the adsorbent into full contact in the process of permeating and returning to the fluid passage again (for example, JP, 2002-219324, A).

  JP 2002-219324 A

  Although the above-mentioned Patent Document 1 is good in that pressure loss can be reduced in operations such as adsorption removal of harmful gas components of fluid, a fluid-permeable wall in which a fluid containing harmful gas components contains an adsorbent. It is conceivable to pass through only the fluid passage without passing through, and only contact the very few surfaces facing the fluid passage of the adsorbent contained in the fluid permeable wall. In this case, the contact between the fluid and the adsorbent may be insufficient, and the adsorption and removal of harmful gas components may be insufficient.

  Therefore, the present invention has been made in view of the above circumstances, and provides an air cleaner that can sufficiently remove harmful gas components contained in a fluid such as air and that can reduce pressure loss. Is an issue.

The present invention has been proposed in order to achieve the above-mentioned problems, and is characterized by having the following configuration.
That is, the invention according to claim 1 is a flat box-shaped adsorbent case which is provided with an air inlet and an air outlet in a machine body and a fan in the machine body, has air permeability and is filled with an adsorbent. A plurality are detachably disposed in the machine body between the air inlet and the air outlet, and air entering from the air inlet passes through at least one flat box-shaped adsorbent case. An air purifier that discharges from the air outlet, wherein an average air passage speed per flat box-shaped adsorbent case is 0.5 m / second or less, and the flat-box-shaped adsorbent case The air cleaner is characterized in that the average pressure loss of air per sheet is 70 Pa or less.

  According to a second aspect of the present invention, in the adsorbent chamber in which the plurality of flat box-shaped adsorbent cases are partitioned in the machine body, the plate surfaces of the plurality of flat box-shaped adsorbent cases are predetermined to each other. A plurality of predetermined intervals between the formed flat box-like adsorbent cases are connected to the supply side space connected to the air inlet and the air outlet. It is the air cleaner comprised alternately with the discharge side space.

  According to a third aspect of the present invention, the guide plate for gradually reducing the cross-sectional area of the air flow passage is inclined from the upstream side to the downstream side of the air flow passage in the supply side space in the adsorbent chamber. And an air cleaner that reduces the flow rate of the air flow from the upstream side to the downstream side, and equalizes the wind speed of the air that reaches and passes through the plate surface of the flat box-shaped adsorbent case.

  According to a fourth aspect of the present invention, there is provided a guide plate for gradually increasing the cross-sectional area of the exhaust air flow passage from the upstream side to the downstream side of the exhaust air flow passage in the discharge side space in the adsorbent chamber. It is an air purifier that is provided with an inclination, increases the flow rate of the exhaust air flow from the upstream side to the downstream side, and equalizes the wind speed of the exhaust air passing through the inside of the exhaust side space.

  Further, the invention according to claim 5 is an air cleaner in which the flat box-like activated carbon cases are stacked at least two, and each case is filled with an adsorbent adhering chemicals having different adsorption characteristics. .

  The invention according to claim 6 is an air cleaner in which the flat box-like adsorbent case is filled with adsorbents with different adsorbing agents admixed therein.

  The invention according to claim 7 is an air cleaner in which the medicine adsorbs an acidic gas.

  The invention according to claim 8 is an air cleaner in which the medicine adsorbs a basic gas.

  According to a ninth aspect of the present invention, a prefilter for removing coarse particles floating in the air sequentially from the air inlet, upstream of the adsorbent chamber in the machine body, and an electric for removing fine particles. This is an air cleaner in which a dust collector and a mechanical filter for removing finer particles are arranged.

  The operation of the first problem solving means is as follows. That is, when the fan operates, the air that has entered the machine main body from the air inlet passes through one flat box-like adsorbent case at an average passing speed of 0.5 m / second or less. The average pressure loss is 70 Pa or less, and harmful gas components such as odors contained in the air are removed by the adsorbent in the flat box-shaped adsorbent case, and the low pressure may be met with the average pressure loss of 70 Pa or less. It becomes use of a fan.

  The action of the second problem solving means is that, in the adsorbent chamber of the machine main body, a plurality of predetermined intervals generated between a plurality of flat box-shaped adsorbent cases, a supply side space connected to an air inlet, By configuring alternately with the discharge side space connected to the air outlet, it is possible to increase the area of the plate surface in the flat box-like adsorbent case in the adsorbent chamber, and as a result, the flat box-like adsorbent The passing speed in the case can be gradually reduced.

  The action of the third problem solving means is that the air that has entered the supply side space of the adsorbent chamber of the machine body is reduced in flow rate by the guide plate as it goes from the upstream side to the downstream side of the air flow passage. The air velocity of the air reaching the plate surface of the box-shaped adsorbent case and passing through it is made uniform.

  The action of the fourth problem solving means is that the exhaust air that has passed through the flat box-shaped adsorbent case increases the flow rate of the exhaust air as it goes from the upstream side to the downstream side of the exhaust air flow passage by the discharge side guide plate. The wind speed of the exhaust air passing through the discharge side space is made uniform.

  The action of the fifth problem solving means is that the air that has entered the adsorbent chamber of the machine main body is adsorbed with chemicals with different adsorbing characteristics filled in two flat-box adsorbent cases. The agent removes various harmful gas components such as odor in a complex manner.

  The action of the sixth problem solving means is that the air that has entered the adsorbent chamber of the machine main body is mixed and filled in the flat box-shaped adsorbent case, with the adsorbent adhering drugs with different adsorption characteristics. In addition, various harmful gas components such as odor are removed in combination.

  The effect | action by the said 7th problem-solving means selectively adsorb | sucks especially acidic gas among various harmful gas components, such as an odor contained in air.

  The action of the eighth problem solving means selectively adsorbs a basic gas among various harmful gas components such as odor contained in the air.

  The action of the ninth problem solving means is that when the fan is operated, the air that has entered the machine main body from the air inlet removes coarse particles floating in the air with a pre-filter, and then the electric dust collector Remove fine particles with a mechanical filter, and then remove fine particles that could not be removed with an electric dust collector with a mechanical filter. And various harmful gas components, such as an odor, are removed in the process which passes the inside of a flat box-shaped adsorbent case in an adsorbent chamber.

As described above in detail, the present invention has the following effects.
The invention according to claim 1 is capable of sufficiently removing harmful gas components such as odors contained in a fluid such as air, reducing pressure loss, and generating noise generated by operating a fan. This has the effect of gradually reducing the increase in power consumption.

  In addition to the above-described effect, the invention according to claim 2 can increase the area of the plate surface in the flat box-shaped adsorbent case in the adsorbent chamber, reduce its passing speed, and reduce pressure loss. Can be lowered, and the above effects can be even more pronounced

  In addition to the above effect, the invention according to claim 3 can uniformize the air velocity of the air passing through the flat box-shaped adsorbent case in the supply-side space of the adsorbent chamber. The air passing through the adsorbent inside is no longer offset, and various harmful gas components such as odors in the air can be removed on average, and the adsorption capacity of the filled adsorbent does not vary and is stable There is an effect that an adsorption capacity and a long life can be obtained.

  In addition to the above effect, the invention according to claim 4 can uniformize the wind speed of the exhaust air passing through the discharge side space of the adsorbent chamber, so that it passes through the adsorbent in the flat box-shaped adsorbent case. It can reduce the deviation of air and helps to remove various harmful gas components such as odors in the air on average, and there is no variation in the adsorption capacity of the adsorbent that has been filled. There is an effect that a long life can be obtained.

  In addition to the above effect, the invention according to claim 5 has an effect of complexly removing various harmful gas components such as odors by using an agent having different adsorption characteristics in addition to the adsorption performance of the main adsorbent. is there.

  Further, in addition to the above effects, the invention described in claim 6 can improve the adsorption performance of the adsorbent in the same manner even if adsorbents with different adsorbing agents are mixed in the flat box adsorbent case. In addition, the agent having different adsorption characteristics has an effect of removing various harmful gas components such as odor in combination.

  In addition to the above effect, the invention according to claim 7 has an effect of selectively and strongly adsorbing the acidic gas by the acidic gas adsorption agent.

  In addition to the above effect, the invention according to claim 8 has an effect of selectively and strongly adsorbing the basic gas by the basic gas adsorption agent.

  In addition to the above effects, the invention according to claim 9 is characterized in that a pre-filter, an electrostatic precipitator, and a mechanical filter substantially remove particles suspended in the air, and then the odor is produced in a flat box-like activated carbon case. Since various harmful gas components such as the above are removed in combination, there is almost no deterioration of the flat box-like activated carbon case due to suspended particles, and there is an effect that it can be used for a longer time.

BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram of the air cleaner which employ | adopts embodiment of this invention (Example 1). It is a perspective view of the flat box-shaped adsorbent case in the air cleaner of the embodiment of the present invention (Example 1). It is sectional drawing of the flat box-shaped adsorption agent case in the air cleaner of embodiment of this invention (Example 1). BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a part of an adsorbent chamber in an air cleaner according to an embodiment of the present invention (Example 1). It is a top view of the adsorbent chamber in the air cleaner of the embodiment of the present invention (Example 1). It is a bottom view of the adsorbent chamber in the air cleaner of the embodiment of the present invention (Example 1). It is a schematic diagram which shows the conventional air cleaner.

  In the drawing, an air purifier 1 has a flat box shape in which an air inlet 3 and an air outlet 4 are provided in a machine body 2 and a fan 5 is provided in the machine body 2, has air permeability and is filled with an adsorbent 6. A plurality of adsorbent cases 7 are detachably disposed in the machine body 2 between the air inlet 3 and the air outlet 4 so that the air entering from the air inlet 3 is adsorbed into at least one flat box. It passes through the agent case 7 and is discharged from the air outlet 4. The average air passing speed per sheet of the flat box-like adsorbent case 7 is 0.5 m / second or less, The average pressure loss of air per adsorbent case is 70 Pa or less.

  The machine body 2 forms a rocker-like box, and sequentially enters the air from the air inlet 3 to the upstream side of the adsorbent chamber 10 in which the flat box-shaped adsorbent case 7 is disposed. A pre-filter 11 for removing floating coarse particles, an electric dust collector 12 for removing fine particles, and a mechanical filter 13 for removing fine particles that could not be removed by the electric dust collector 12 are provided. is there. The fan 5 is provided in the machine main body 2 downstream from the adsorbent chamber 10.

  The flat box-shaped adsorbent case 7 is detachably disposed in the adsorbent chamber 10 so that the filled adsorbent 6 can be regenerated or replaced. The adsorbent 6 is not particularly limited, but in this embodiment, activated carbon which is the best among the existing adsorbents is used. Hereinafter, the adsorbent 6 is described as activated carbon 6, the flat box-shaped adsorbent case 7 is described as the flat box-shaped activated carbon case 7, and the adsorbent chamber 10 is described as the activated carbon chamber 10.

  As shown in FIG. 2, the flat box-like activated carbon case 7 has a flat box-like shape in which a net 18 is stretched on a frame body 17 composed of a bottom plate 14, a frame column 15 and a lid 16, and the granular activated carbon 6 is placed therein. Filled. The net 18 is selected so that it is sufficiently breathable but the filled activated carbon 6 does not fall off. The flat box-like activated carbon case 7 is made of a material that can withstand the regeneration process of the activated carbon 6, for example, a frame 17 such as stainless steel and a net 18 in view of the possibility of the regeneration process of the activated carbon 6 being performed as it is. It is desirable to be configured. In addition, when not regenerating the activated carbon 6 together with the flat box-shaped activated carbon case 7, there is no particular limitation on the material.

  As shown in FIG. 3, the flat box-like activated carbon case 7 is parallel to the plate surfaces 7 a of the plurality of flat box-like activated carbon cases 7 at predetermined intervals in the activated carbon chamber 10 partitioned in the machine body 2. The supply side space 19A connected to the air inlet 3 and the discharge side space connected to the air outlet 4 at a plurality of predetermined intervals 19 between the formed flat box-like activated carbon cases 7 It is configured alternately with 19B. By arranging a plurality of flat box-like activated carbon cases 7 in the activated carbon chamber 10 in this way, it is possible to obtain the maximum plate surface 7 a area of the flat box-like activated carbon case 7 within the limited volume of the activated carbon chamber 10. I can do it. As a result, it is possible to gradually reduce the speed at which the air that has entered from the air inlet 3 passes through the flat box-like activated carbon case 7, and it is easy to make the average air passing speed 0.5 m / sec or less. If the average air passing speed is 0.5 m / sec or less, the average pressure loss can be easily reduced to 70 Pa or less.

  Further, in the supply side space 19A of the plurality of predetermined intervals 19 formed in the activated carbon chamber 10, the cross-sectional area of the air flow passage 20 is gradually reduced from the upstream side 20a to the downstream side 20b of the air flow passage 20. The guide plate 21 is provided in an inclined state. Therefore, the air that has entered the supply side space 19A of the activated carbon chamber 10 is reduced in flow rate by the guide plate 21 from the upstream side 20a to the downstream side 20b of the air flow passage 20, and the flat box-like activated carbon case 7 It is possible to equalize the wind speed of the air that reaches and passes through the plate surface 7a. For this reason, the speed of the air passing through the flat box-like activated carbon case 7 can be made uniform, the air passing through the activated carbon 6 in the flat box-like activated carbon case 7 is free from deviation, and various harmful effects such as odors in the air. Gas components can be removed on average, and there is no variation in the adsorption ability of the filled activated carbon, and a stable adsorption ability and a long life can be obtained.

  On the other hand, in the discharge side space 19B in the activated carbon chamber 10, a discharge side guide plate 23 for gradually increasing the cross-sectional area of the discharge air flow passage 22 from the upstream side 22a to the downstream side 22b of the discharge air flow passage 22. Is provided in an inclined state. Therefore, the flow of air that has passed through the flat box-like activated carbon case 7 and entered the discharge side space 19B is increased by the discharge guide plate 23 from the upstream side 22a of the discharge air flow passage 22 to the downstream side 22b. The wind speed of the exhaust air passing through the discharge side space 19B can be made uniform. For this reason, the deviation of the air passing through the activated carbon 6 in the flat box-like activated carbon case 7 can be reduced, and various harmful gas components such as odors in the air can be removed on the average and filled. It is possible to obtain a stable adsorption ability and a long life in which the adsorption ability of a certain activated carbon 6 varies. The guide plate 21 and the discharge guide plate 23 described above may be provided in the supply side space 19A and the discharge side space 19B, or only one of them may be provided depending on the level of uniformity required. .

  The flat box-shaped adsorbent case 7 is devised in various ways as described above, and is detachably disposed in the activated carbon chamber 10, but the average air passing speed in the flat-box-shaped adsorbent case 7 is: The process of setting the average pressure loss to 70 Pa or less at 0.5 m / sec or less will be described below.

  For example, assuming that the flat box-like activated carbon case 7 is 10 pieces as shown in FIG. 3 and the dimension of the plate surface is 0.4 m length × 0.3 m width × (0.04 m thickness), (0.4 m × 0.3 m) / sheet × 10 sheets = 1.2 m2, and assuming that the amount of air taken in from the air inlet 3 is 20 m3 / min, the average air passing speed is (20 m3 / min) /1.2 m2 × 1 Second / 60 seconds = 0.278 m / second <0.5 m / second. The average passing speed of 0.278 m / sec is that in which the activated carbon 6 is not filled in the flat box-shaped activated carbon case 7, and in the flat box-shaped activated carbon case 7 filled with the activated carbon 6, There is no doubt that the internal passage flow rate will rise significantly, although it varies depending on the filling rate of the activated carbon 6. However, the actual internal passage flow velocity in the flat box-like activated carbon case 7 filled with the activated carbon 6 cannot be measured.

  Accordingly, when the pressure loss is actually measured for the above-mentioned flat box-like activated carbon case 7 in which 2.5 kg of activated carbon 6 is filled, it is 60 to 70 Pa although there is some variation. The volume of the flat box-like activated carbon case 7 is 40 cm × 30 cm × 4 cm = 4800 mL, and assuming that the apparent specific gravity of the activated carbon 6 is 0.7, (2.5 Kg / 0.7) × 1000 = 3571 mL The apparent filling rate is 3571 mL / 4800 mL = 0.744. Therefore, the average air passage speed in the flat box-like activated carbon case 7 was set to 0.5 m / second or less, and the average pressure loss at that time was regulated to 70 Pa or less.

  In addition, the flat box-like activated carbon case 7 is overlapped with two or more parallel to the plate surface 7a, and each of the stacked flat box-like activated carbon case 7A, flat box-like activated carbon case 7B... The attached activated carbon 6 may be filled. FIGS. 1 and 3 show the superposed flat box-like activated carbon cases 7A and 7B, but they may be three, four, or more, but this is not practical because the pressure loss increases too much. These flat box-like activated carbon cases 7A and 7B are filled with activated carbon 6 impregnated with drugs having different adsorption characteristics. And the chemical | medical agent of a different adsorption | suction characteristic is what adsorbs acidic gas, for example, and adsorbs basic gas. Either one of these flat box-like activated carbon cases 7A and 7B is filled with activated carbon 6 adsorbed with an adsorbent that adsorbs acidic gas, and adsorbent that adsorbs basic gas is attached to either one of these cases. Charcoal 6 is filled. It should be noted that there is no rule that must be filled with either the flat box-like activated carbon case 7A or the case 7B with the activated carbon 6 impregnated with an adsorbent of acidic gas and basic gas.

  Further, as described above, the flat box-shaped activated carbon case 7 may be filled in the same flat box-shaped activated carbon case 7 without overlapping the flat-box-shaped activated carbon case 7, with the activated carbon 6 to which drugs having different adsorption characteristics are attached. The pressure loss in this case is 70 Pa or less for one flat box-like activated carbon case 7, but the contact time between the passing air and the activated carbon 6 is also halved, so the removal of harmful gas components in the passing air is also considerable. Will be reduced.

  The prefilter 11 provided on the most upstream side of the activated carbon chamber 10 in the machine main body 2 removes coarse particles floating in the air that has entered from the air inlet 3.

  The air from which coarse particles floating are removed by the pre-fill cool 11 further remove fine particles floating by the following electric dust collector 12. The electrostatic precipitator 12 is a known device called a so-called two-stage charge type electrostatic precipitator, and is charged with an ionization unit having an ionization line and an ionization electrode for charging suspended particles in the air by corona discharge or the like. Dust collection electrode plates and dust collection counter electrode plates for collecting suspended particles by Coulomb force are alternately arranged, and these are provided at equal intervals with spacers, and ionization units and dust collection units. And a power supply for supplying power. In the electrostatic precipitator 12, air passes between the ionization line and the ionization electrode and between the dust collection electrode plate and the collecting counter electrode plate. Can be efficiently removed.

  Further, the air from which fine particles floating are removed by the electrostatic precipitator 12 removes fine particles that could not be removed by the precipitator 12 by the next mechanical filter 13. The mechanical filter 13 is a HEPA filter or a quasi-HEPA filter. The HEPA filter can remove 99.9% (counting method) at a specified air flow of 11.5 m3, and the quasi-HEPA filter can remove 99.0% (counting method) at a specified airflow of 11.5 m3. .

  In this embodiment, the electrostatic precipitator 12 and the next mechanical filter 13 are arranged in series. However, only one of them may be arranged. In short, the degree of contamination of the air to be treated and how much it should be treated, or how much deterioration of the activated carbon 6 due to adhesion of particles floating in the air is to be prevented, that is, which rotation of the activated carbon 6 should be regenerated and replaced. Whether the electric dust collector 12 and the mechanical filter 13 are arranged in series or only one of them is selected depending on whether the length is extended.

Below, the effect | action of the air cleaner 1 which becomes the said structure is explained in full detail.
When the fan 5 is operated, air enters the machine main body 2 from the air inlet 3, and first, coarse particles floating in the air are removed by the prefilter 11. Next, fine particles floating in the air are removed by the electric dust collector 12, and further, fine particles that could not be removed by the electric dust collector 12 are removed by the mechanical filter 13.

  As described above, the air from which the suspended particle component contained in the air is substantially removed by the pre-filter 11, the electrostatic precipitator 12, and the mechanical filter 13 enters the activated carbon chamber 10 of the machine body 2. In the activated carbon chamber 10, a plurality of predetermined intervals 19 are formed between the flat box-shaped activated carbon cases 7, but the air that has entered the activated carbon chamber 10 enters the supply side space 19 </ b> A connected to the air inlet 3. Then, the air velocity of the air passing through the flat box-like activated carbon case 7 is made uniform by the guide plate 21. During the passage, harmful gas components such as odor and activated carbon 6 are in sufficient contact on average, adsorbing and removing harmful gas components such as odor contained in the air, and connected to the air outlet 4. It reaches the discharge side space 19b, the discharge guide plate 23 helps to uniformize the wind speed of the discharge air in the discharge side space 19b, and to eliminate the deviation of the air passing through the flat box-like activated carbon case 7, and further to the air It will be discharged out of the machine body 2 from the outlet 4.

  Then, two flat box-like activated carbon cases 7 are stacked, for example, a flat box-like activated carbon case 7A is filled with a chemical adsorbing an acid gas, and the flat box-like activated carbon case 7B is basic. When the activated carbon 6 impregnated with a chemical that adsorbs the system gas is filled, the acidic gas and the basic gas in the air are efficiently removed. On the other hand, this air will pass through the flat box-like activated carbon case 7 at an average passing speed of 0.5 m / sec or less, and the average pressure loss at that time will be 70 Pa or less, such as odor contained in the air. While removing harmful gas components by the activated carbon 6 in the flat box-shaped activated carbon case 7, it becomes possible to use the low-pressure fan 5 corresponding to the average pressure loss of 70 Pa or less, and the noise caused by the fan 5 is reduced. In addition, power consumption associated therewith can be reduced.

  However, as the air cleaner 1 continues to operate for a long period of time, the removal performance of the suspended particles and the processing air volume are reduced due to clogging and accumulation due to suspended particles in the prefilter 11, the electrostatic precipitator 12, and the mechanical filter 13. In addition, since the noise of the fan 5 and the power consumption associated therewith increase, it is necessary to perform maintenance of the prefilter 11, the electric concentrator 12 and the mechanical filter 13 at a certain rotation.

  Similarly, the activated carbon 6 in the flat box-shaped activated carbon case 7 that adsorbs harmful gas components such as odors contained in the air also deteriorates its adsorption performance. Therefore, the flat box-shaped activated carbon case 7 is removed from the activated carbon chamber 10, Maintenance to regenerate or replace the activated carbon 6 needs to be performed at a certain rotation.

  While the first embodiment of the present invention has been described above, it should be understood that the specific configuration is not limited to this, and that modifications can be made as appropriate without departing from the scope of the present invention.

  The air cleaner of the present invention is extremely useful when it is possible to sufficiently remove harmful components contained in a fluid such as air and to reduce pressure loss.

1 Air purifier 2, 52 Machine body 3, 50 Air inlet 4, 51 Air outlet 5, 57 Fan 6, 56 Adsorbent (activated carbon)
7, 7A, 7B Flat box-shaped adsorbent case (flat box-shaped activated carbon case)
7a Plate surface 10 Adsorbent chamber (activated carbon chamber)
11, 53 Pre-filter 12, 54 Electric dust collector 13, 55 Mechanical filter 14 Bottom plate 15 Frame pillar 16 Lid 17 Frame 18 Net 19 Predetermined distance 19A Supply side space 19B Discharge side space 20 Air flow passage 20a, 22a Upstream side 20b , 22b Downstream side 21 Guide plate 22 Discharge air flow passage 23 Discharge guide plate

Claims (9)

  An air inlet and an air outlet are provided in the machine body, and a fan is provided in the machine body, and a plurality of flat box-shaped adsorbent cases filled with an adsorbent are provided as the air inlet and the air outlet. Air that is detachably disposed in the machine body between the air and the air that has entered from the air inlet passes through at least one flat box-like adsorbent case and is discharged from the air outlet. In the cleaner, the average air passing speed per flat box-shaped adsorbent case is 0.5 m / second or less, and the average pressure loss of air per flat-box-shaped adsorbent case is The air cleaner characterized by being 70 Pa or less.   The plurality of flat box-shaped adsorbent cases are arranged in parallel in the adsorbent chamber partitioned within the machine body with a predetermined interval between the plate surfaces of the plurality of flat box-shaped adsorbent cases. A plurality of predetermined intervals between the formed flat box-shaped adsorbent cases are alternately configured in a supply-side space connected to the air inlet and a discharge-side space connected to the air outlet. Item 1. An air purifier according to Item 1.   In the adsorbent chamber, a guide plate for gradually reducing the cross-sectional area of the air flow passage is provided from the upstream side to the downstream side of the air flow passage in the supply side space. The air cleaner according to claim 2, wherein the air flow rate is gradually reduced to equalize the air velocity of the air that reaches and passes through the plate surface of the flat box-shaped adsorbent case.   In the adsorbent chamber, a discharge-side guide plate for gradually increasing the cross-sectional area of the discharge air flow passage is provided from the upstream side to the downstream side of the discharge air flow passage in the discharge side space. The air cleaner according to claim 2 or 3, wherein the flow rate of the exhaust air flow from the side to the downstream side is gradually increased so that the wind speed of the exhaust air passing through the discharge side space is made uniform.   The flat box-shaped adsorbent cases are stacked at least two, and each flat box-shaped adsorbent case is filled with adsorbents with different adsorbing properties. 1 The air purifier according to item.   5. The air cleaner according to claim 1, wherein the flat box-shaped adsorbent case is filled with adsorbents with agents having different adsorption characteristics mixed therein.   The air cleaner according to claim 5 or 6, wherein the chemical adsorbs an acidic gas.   The air cleaner according to claim 5 or 6, wherein the drug adsorbs a basic gas.   A pre-filter for removing coarse particles floating in the air in order from the air inlet on the upstream side of the adsorbent chamber in the machine body, an electric dust collector for removing fine particles, and the electric dust collector The air cleaner according to claim 1, wherein a mechanical filter for removing fine particles that could not be removed is provided.

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