JPS5832727Y2 - air purification device - Google Patents

Description

[Detailed description of the invention] The present invention relates to an air purification device, which is suitable for purifying air containing harmful substances such as radioactive substances and bacteria, and which is equipped with a plurality of filters connected in series, and particularly relates to an air filter mounting structure. It is something.

Air purification is often essential for environmental protection. For example, in an atomic couplant, it is necessary to remove radioactive materials before exhausting the air in order to prevent environmental contamination due to the diffusion of radioactive materials into the outside world.

Therefore, for example, as shown in the front view and cross-sectional side view shown in FIGS. Second. Three third air filters 4, 5, 6 are arranged in series and contaminated air is passed through them one after another to purify and exhaust the air.

However, in this case, the air filters 4, 5, 6 become unusable due to the accumulation of dust and the like.

For this purpose, a replacement port 10 has a sealing lid 9 that is airtightly attached to the surface of the case 1 with bolts 7, tightening nuts 8, etc.
, 11.

12 to allow the air filters 4, 5.6 to be taken in and out, and at the same time, the mounting structure described below is used to prevent air leakage between the air inlet and outlet sides of each air filter. It is common practice to install an air filter in 1.

That is, in the first air filter 4, for example, an activated carbon filter,
Mounting frame plates 13 and 14, each having an air outlet 13' and an air outlet 14' at intervals corresponding to the height of the air filter 4 in correspondence with the exchange port 10, are airtightly fixed to the four inner circumferences of the case 1. , by inserting the air filter 4 between them,
A replaceable mounting method is used.

Further, in the second and third air filters 5 and 6, a contact frame plate 15 having an air inlet 15' corresponding to the upper side of the exchange port 11.12 is airtightly fixed to the inner circumference of the case 1,
The second and third air filters 5 and 6 inserted through the exchange ports 11 and 12 are connected to the second and third air filters by two cam plates 18 respectively provided on two tightening shafts 17 rotated by a handle 16. ．． The left and right ends of the third air filters 5 and 6 are pressed against the surface of the abutting frame plate 15 for attachment.

That is, due to the rotation of the tightening shaft 17, a of the perspective view shown in FIG.
A clamping plate 20 equipped with an elastic body 19 such as a comb or a spring by means of a cam plate 18 adapted to shift from the state shown in FIG. Accordingly, a method is used in which the air filters 5 and 6 are pressed against the surface of the abutment frame plate 15 and attached so as to be replaceable.

However, in an air purification device with such a configuration,
Each air filter has a sealing lid that is fixed with a tightening bolt and a nut, and each air filter has its own mounting mechanism, making replacement operations cumbersome.

Also, for these reasons, the height of air purification equipment is generally 2 m.
That's all.

For this reason, the first air filter located at the top and its exchange port are located at a height higher than the operator's height, making it extremely difficult to operate.

The purpose of the present invention is to provide an inexpensive air purifying device that eliminates the above-mentioned drawbacks, and the details thereof will be explained below with reference to the drawings.

Figures 3a, b, c, and d are a front view, a cross-sectional side view, a cross-sectional view taken along the arrow A-A', a top view of the tightening plate, and a top view of the tightening plate. FIG. 4 is a partially sectional side view showing the state of the air filter when it is removed, and the same reference numerals as in FIG. 1 indicate the same parts.

In Fig. 3, 1 is a case, 2 is an inlet for contaminated air, 3 is an outlet for purified air, 4, 5.6 is a first . Second. 3rd air filter, 22 is a common exchange port for each air filter, 23 is a sealing lid, 24.25 is its tightening bolt and tightening nut, 2
6 is a contact frame plate airtightly fixed to the upper inner surface of the case, 26' is an air inlet thereof, 27 is a rotating handle, 27'
is its rotating shaft and passes through the case 1 while keeping it airtight.

28 is a lifting/lowering operating device for the tightening plate, such as a jacking device;
28' is its operating shaft, 28'' is a tightening square screw that rotates via a gear (not shown) as the operating shaft 28' rotates, and 29 is a universal joint that connects the rotating shaft 27' and the operating shaft 28.
′.

30 is a tightening plate, for example, the air outlet 3 as shown in FIG. 3d.
0', and a tightening square screw 28'' in a screw hole 30'' provided at the center thereof is screwed together, and the tightening plate 30 is raised or lowered by its rotation.

31 is the first clamping frame, 31' is its air inlet, 32 is the second clamping frame plate, 32' is its air inlet, 33 is the clamping plate 30, the first. The spacing regulating body of the second tightening frame plate 31, 32 is, for example, a penetrating rod, 34 is a retaining nut at both ends, and 35 is a penetrating rod 3.
The intermediate retaining seat of the second tightening frame 32 that is integrated with 3, 36
37 is a repulsion spring, 37 is a spring retaining seat, and the penetrating rod 33 is a third
As can be seen with reference to Figure C, the clamping plate 30 and the first . The second clamping frame plate 31, 32 is loosely penetrated at the squares thereof, and these are connected by a retaining nut 34 and an intermediate retaining seat 35.
They are assembled together with a gap that allows the third air filters 5 and 6 to fit therein.

In addition, the repulsion spring 36 is connected to the spring retaining seat 37 and the first tightening frame plate 31.
A spring is provided to be interposed between the retaining seat 37 and the clamping plate 30, and is repulsed to cause the clamping plate 30 and the second
Tightening frame plate 32, second tightening frame plate 32, and first tightening frame plate 3
1 period to 2nd period. The third air filters 5 and 6 are maintained at such a distance that they can be inserted, and the position of the common exchange port 22 and the height of the case 1 are determined as follows in relation to the mechanisms housed therein. Selected.

That is, as shown in FIG. 3, the first, second, . Third air filter 4, 5.6
When the tightening plate 30 and the like are positioned so that The heights of the exchange port 22 and the case 1 are selected so that the first air filter 4 is located at the exchange port 22 when the air filter is lowered to the lowest position.

In the present invention having such a configuration, the air filter can be installed and removed in the following manner.

That is, the jacking device 28 is operated by the rotary handle 27, the tightening plate 30 is lowered to the lowest position as shown in FIG. 1 Place it on the tightening frame plate 31.

Next, using the rotary handle 27, place the second air filter 5 on the second tightening frame plate 32 so that the second tightening frame plate 32 is positioned approximately corresponding to the lower side of the exchange port 22, and in the same manner. The third air filter 6 is placed on the clamping plate 30 by operating the clamping plate 30 so as to correspond to the lower side of the exchange port 22.

Finally, the rotation handle 27 is used to further raise the clamping plate 30, and the contact frame plate 26 and the clamping plate 3 are moved against the force of the repulsion spring 36.
0 and compresses each air filter 4, 5.6.

As a result, the upper and lower end surfaces of the first air filter 4 are brought into close contact with the abutment frame plate 26 and the first clamping frame plate 31 surface, and the total amount of air that enters from the contaminated air inlet is prevented from causing air leakage. The upper and lower end surfaces of the second air filter 5 are connected to the first air filter 4, and the upper and lower end surfaces of the second air filter 5 are connected to the first air filter 4. The second clamping frame plates 31 and 32 are fixed in close contact with the surfaces thereof so that the entire amount of air from the first air filter 4 enters the second air filter 5.

Furthermore, the upper and lower end surfaces of the third air filter 6 are attached to the second tightening frame plate 3.
2 and the surface of the clamping plate 30, the air from the second air filter 5 is transferred to the third air filter 6 without causing any air leakage.
The purified air enters and is discharged from the purified air outlet 3.

Also, when removing the air filters 4, 5, 6, perform the procedure in reverse order to the above.

As described above, in this case, by operating the jacking device 28,
1st. Second. A clamping plate 30 on which the third air filters 4, 5.6 are respectively placed; The second tightening frame plates 31 and 32 are moved up and down in an integrated state, and the first tightening frame plates 31 and 32 are moved up and down in an integrated state. Second. The third air filter 4, 5, 6 is located in one exchange port 22 so that it can be easily installed and removed.

Furthermore, when tightening, by operating one rotary handle 27, each filter 4, 5, 6 is compressed in series between the contact frame plate 26 and the tightening plate 30, thereby causing air leakage at once. The tightening is fixed to prevent any damage.

Therefore, compared to the conventional type shown in Fig. 1, which has exchange ports for the number of filters, and after removing each airtight cover, insert the air filters into each one and tighten and fix them using separate tightening mechanisms. It is much easier to operate.

In addition, in this proposal, the thin first and second tightening frame plates 31.3
The filter group, which has been stacked in tandem with each other to reduce the overall height, is lowered to a position close to the bottom of case 1, and the first air filter 4 and other filters on the top stage are connected to a common exchange port. 22
I'm trying to take it out.

Therefore, the exchange port 22 can be made to have almost the same height as the third exchange port for taking out the third air filter at the bottom of the conventional purifier described above in FIG. There is no fear that the exchange opening of the first air filter is too high, which would cause operational difficulties, as in conventional devices.

Furthermore, in the present invention, as described above, the stacking of the air filter groups can be made lower than the height of the filter group of the apparatus shown in FIG. 1, that is, the conventional apparatus in which independent tightening mechanisms are disposed between each air filter.

Therefore, the height of the case 1 above the exchange port 22 can be lowered compared to the conventional device, reducing the overall height to about 2/3 of the conventional device (for example, from 2.2 m to about 1.6 m). be able to.

Therefore, the number of exchange ports is reduced, the device can be manufactured at low cost, and installation space can be saved.

In the above description, the jacking device 28, which is a device for raising and lowering the tightening machine, is configured to be operated by the rotary handle 27, but it can also be configured to be operated by a switch provided on the surface of the case 1, for example, using a motor as the drive source. You can also.

Further, a pilot lamp may be provided to indicate the tightening completion state and tightening release state of each air filter.

Furthermore, in the above description, a jacking device was used as the lifting/lowering device 28 of the tightening machine, but as shown in the cross-sectional side view of FIG. A known mechanism can be used, such as being able to expand and contract the clamping plate 30 in the vertical direction using the screw shaft 38' to raise or lower the clamping plate 30 for installation.

In addition, in the above, the upper and lower end surfaces of each air filter are directly brought into contact with the frame body 2.
6. The first and second clamping frames 31, 32, the clamping plate 30, etc. were made to contact directly, but as shown in Figure 3, the upper and lower end surfaces of each air filter and the contact frame surface It is desirable to provide a gasket 40 between them to ensure airtightness.

Further, in the above embodiment, the pre-tightening clamping plate 30 and the first. Second tightening frame plate 31.
32, the repulsion spring 36 is omitted, and at the same time, the tightening plate 30,
1st. A guide plate 39 as shown in the sectional view of FIG. 6 is provided at the air filter insertion end of the second tightening frame plate 31, 32, so that the air filter can be inserted into the air filter. The second tightening frame plate 31, 32 may be inserted while being pushed up.

As is clear from the above description, according to the present invention, it is possible to provide an air purifying device suitable for use in atomic couplants, etc., which is small and inexpensive, and whose filter can be easily replaced, and has great practical effects.

[Brief explanation of drawings]

Figure 1 a, l) is a front view and cross-sectional side view showing an example of a conventional device, Figure 2 is a partially enlarged perspective view of a tightening shaft provided with a cam, and Figure 3 a, b, c, and d are A front view, a cross-sectional side view, a cross-sectional view taken along the line A-A', and a plan view of the clamping plate of an embodiment of the present invention showing the state when the air filter is installed, and FIG. 4 shows the state when the air filter is removed. 5 is a partial sectional view showing another example of the clamping plate lifting/lowering device, and FIG. 6 is a sectional side view of the clamping plate and the first. FIG. 7 is a partial cross-sectional view showing another example of maintaining the air filter insertion interval of the second tightening frame plate. 1... Case, 2... Contaminated air inlet, 3... Purified air outlet, 4, 5.6...
...First. Second. Third air filter, 22...Filter common exchange port, 23...Sealing lid, 24゜2
5...Tightening bolt, tightening nut, 26...
...Abutting frame body, 26'...Air inlet, 27...
... Rotating handle, 27' ... Rotating shaft, 2
8... Tightening plate lifting/lowering device (jacketing device)
, 28'...Operating shaft, 28''...Tightening square screw, 29...Universal joint, 3
0...Tightening plate, 30'...Air outlet,
30''...Screw hole, 31...First tightening frame plate, 32'...Air inlet, 33...
Spacing regulator, (penetrating rod), 34... Retaining nut, 35... Intermediate retaining seat of second tightening frame, 36
... Repulsion spring, 37 ... Spring retaining seat,
38... Operating leg, 38'... Screw shaft, 39... Mountain air filter insertion guide plate, 40...
...Patsukin.

Claims (1)

[Scope of utility model registration request] A clamping plate with an air outlet is installed at the bottom of the case and is raised and lowered by a clamping plate lifting and lowering device operated from the outside of the case, and a contact frame plate with an air inlet is provided at the top of the case. is provided, and when the tightening plate is raised, a tightening frame plate is interposed between the abutment frame plate and the tightening plate to compress and tighten the plurality of filters, and the case is is provided with a common exchange port for each air filter having a removable sealing lid at a position where each air filter that is moved up and down by the above-mentioned tightening plate lifting/lowering device can be taken out; An air purifying device characterized in that each air filter can be attached and detached from a common exchange port only by operation.