JPS62289218A - Gas-liquid contact apparatus - Google Patents

Abstract

PURPOSE:To effectively contact liquid with gas by arranging wires in parallel in the same plane, disposing screens in a passage of gas so that the wires are kept horizontal, providing a pouring device which pours the liquid on the screens, and returning the liquid having flowed down to the pouring device. CONSTITUTION:The gas is introduced the gas-liquid contact apparatus 1 by a blower 3, and contacts with the screens 4 disposed in the passage 2 of the gas. The screens 4 are disposed to fill the passage 2 of the gas and to keep the wire horizontal, and the pouring device 5 pours the liquid and forms films on the screens. The gas contacts with the films, and the liquid flows down and is circulated by a pump 6 and returned to the pouring device 5. Different kinds of liquids are usable in each one of sections A-F respectively, and moreover only the sections required are able to be put in operation.

Description

Detailed Description of the Invention 3. Detailed Description of the Invention A. Object of the Invention (1) Field of Industrial Application The present invention relates to a gas-liquid contact device. Such equipment can be used for gas deodorization, humidification, cooling, dust removal, etc.

(2) Since the advent of technology, washing Q has been used as a method for removing foul-smelling residue and harmful gases.
'D-absorption method is the most commonly used.

In order to increase the absorption efficiency of a specific component in the waste, it is important to make the contact between λ and night as good as possible and to facilitate the diffusion of this specific component into the waste. There are various types of equipment for carrying out the cleaning and absorption method, but the most widely used deodorizing equipment is the packed column type (No.
) and the souffle tower type (Figure 1O111). These will be explained with reference to FIGS. 8 to 11, in which the same reference numerals indicate the same or corresponding parts.

The full IJl tower type cleaning/absorbing device '121 flows the 1r2 body 23 onto the surface of the packing 220 with a large surface area, and the waste 24 flows in its own flow (in the downstream direction of ?α, and in principle, in the opposite direction).
This is a device that allows air to flow through it to bring it into contact with air and jtl. The first thing that should be omitted as a product is that air has a high rate of resistance to the flow of C1 force, and is less likely to cause overflow or drift. It is also corrosion resistant and has a low specific gravity.
Another condition is that it has great mechanical strength. Filling materials include Raschig ring 25 and Terraret 26 (Figure 9).
. The most commonly used filler at present is a magnetic Raschig ring, but carbon and metal fillers are also used. Plastic terraret is also widely used as a filler for deodorizing devices. In order to increase pressure loss and prevent flooding, it is desirable that the porosity of the filler support plate be at least 50 percent or more, preferably greater than the porosity of the filler.

Soufflé-t=at is sometimes used as a front stage of an absorption device to humidify, cool, remove dust, etc., but is increasingly being used as a deodorizing device. The souffle tower type tends to cause uneven flow, and in that case, the deodorizing effect is adversely affected. To avoid this problem, a multi-stage spray system as shown in FIG. 11 is often used. The one in FIG. 11 is a two-stage type, but three-stage and five-stage types are also used in practice.

(3) Problems with conventional technology With these vertical devices, it is not possible to use many types of drugs (1α) in one device, so for example, if the drug (drug) α is 3V! Three devices are required to use Class II.

In the case of a packed column type, if the gas flow rate is too high, a flooding phenomenon will occur and the system will become inoperable; if the gas flow rate is too low, uneven flow will occur; if it is too high, overflow will occur. If there are solids or precipitates in the chemical solution, it will cause clogging, and it will be difficult to remove the blockage or fill it.
It takes a lot of effort to replace the materials.

In the spray tower type, it is difficult to bring the spray into uniform contact with the scum, and drifting tends to occur.

Arrangement of the Invention (1) Means for Solving the Problems An air 1α contacting device is arranged such that a gas passage and a blower device provided in relation to the gas passage are arranged in a flat plane on the same plane. a screen having a wire arranged in the gas passageway and installed in the gas passageway so as to close the gas passageway and to make the wire horizontal; (consisting of an α device, a pump installed in a pipe connecting the gas passage and the dosing device for returning the liquid that has flowed down from the screen to the dosing device; Make sure that a film is formed all over the screen when pouring the liquid.

The angle of the screen is such that a film will be formed on the entire surface of the screen when the γα substance is continuously poured onto the screen, and this depends on the shape of the wires, the distance between the wires, the gas wind speed, etc. Since it is influenced by the amount of α, etc., it cannot be determined in a −i manner.

(2) Effect note H2n on the screen from the guest? By injecting the α-form,
A moat film with a certain thickness is formed by molecular forces. By sending gas into the gas passage with a blower, the formed liquid film can be brought into continuous and efficient contact with the gas. The coating is broken by the passage of gas, but the coating is immediately re-formed by the continuously supplied liquid. The film is repeatedly destroyed and formed on the screen surface in this way. The night body that flowed down from the screen,
It can be pumped back to the Note 1α device and used again for contact with gas.

If you want to increase the gas passing wind speed, you can respond by pouring a suitable crusher. Furthermore, by changing the angle of the screen, the relationship between the gas passing velocity and the liquid volume can be adjusted.

In order to increase the chance of contact with air at night, it is a good idea to increase the number of screens that air passes through.

Since it is easy to introduce the sectional drive system,
If you want to contact more than one type of liquid, you can pour a different liquid onto each screen, 2! It is also possible to set up a block diagram for operating, stopping, and changing the operating order of the pump f'[, and partially stopping the pump.

(3) Embodiment 1 has an air α contact device, which includes a gas passage 2, an air blower 3 provided in connection with the passage 2; a screen 4 disposed within the passage 2; It consists of a liquid pouring device 5 which can come out into the passage 2 to pour liquid into the liquid, and a pump 6 which returns the liquid flowing down from the screen 4 to the liquid pouring device 5. The screen 4 is a flat screen consisting of a rod 11 and wires arranged parallel to each other thereon (FIGS. 3 and 4). The screen should be placed so that it is horizontal.The angle α of this screen is usually 70 to 85 degrees with respect to the horizontal line, but in short, when the liquid is continuously poured onto the screen, a film is formed on the entire surface of the screen. It may be at an angle such that the angle is such that the wire shape, the wire gap 13, the gas wind speed, etc. Note that 15 is a demister.

Is the liquid injected by the liquid injecting device 5 to the top of the screen as shown in Fig. 1, or is it to flow downward sequentially and cover the entire surface of the screen? However, if the screen is vertically long, it may also be directly distributed in other places as shown in FIG.

Divide the device into 6 sections as shown in Figure 7AI, and remove the odor; when deodorizing, sections A, B, and C should be filled with Pl night, sections D and E should be filled with Q and night, and section F should be filled with Rri. As if pouring, there is no effective treatment.

By adopting the Kalo Sectional Try 7 method, only the necessary sections can be operated, which also contributes to energy saving.

Figures 5 to 7 show an example of a wet indoor stationary deodorizing device. The air in the room is fed into the deodorizing device (i.e., the air contact device 1) by the blower device 3 driven by the motor 8, passes through a screen coated with a deodorizing liquid, and is deodorized until it reaches the upper stage. , and return to the room via Demister-15. 17 is the supply Tα tank. Furthermore, as shown in FIG. 7, by meandering once in the horizontal direction and then moving to the upper stage, the number of times of contact with the screen can be increased without increasing the depth of the deodorizing device.

C Effect of invention The present invention provides the following effects.

(1) Continuous and efficient Qi-α contact can be made (2)
) Once you have decided on a certain wind speed, change the liquid ffi and you will be able to get a good contact efficiency.

(3) If the gas passing wind speed is increased, 1 adapted to it
You can handle this by pouring 12 volumes.

(4) If the gas to be treated has a high concentration, the number of screens to be passed through may be increased to increase the chances of gas-liquid contact. Since the screen is thin and flat, the entire device does not become as large as it would be if it were vertical.

(5) Since a sectional drive method can be adopted,
It can also be used when two or more types of t & touch 7α are required.

(6) Inside the device: There is no filler as a contact material, and there is no spray, so it is easy to see how the gas passes through the internal screen through the E provided in the device. Be able to do it.

(7) Since the screen is used, the pressure loss can be extremely small without lowering the contact efficiency, compared to using a conventional contact hole such as a packing.

(8) Flap ink phenomenon, drifting, and overflow do not occur at all.

(9) The screen is less likely to be clogged, does not require replacement of filling materials, and is easy and economical to maintain.

(10) The shape of the screen wire gap, wire width, and width can be freely set according to the properties of the liquid.

(11) By changing the installation angle of the screen, it is possible to adjust the relationship between the gas passage speed and the amount of α.

(12) It is easy to apply a computer control system, and by applying this system, it is possible to catch the (1 degree change) of the gas to be treated, and it is possible to operate in an energy-saving manner with high efficiency. becomes.

[Brief explanation of drawings]

Fig. 1 is a schematic front view of the gas-liquid contact device according to the present invention, Fig. 2 is a schematic front view of an embodiment of the same song, Fig. 3 is a front view of the screen, Fig. 4 is a side view of the same, and Fig. The figure is a front view of the deodorizing device, FIG. 6 is a schematic cross-sectional view of the same side, FIG. 7 is a schematic cross-sectional view of the same plane, FIG. 8 is a front schematic view of the packed tower type device, and FIG. Figures 1θ and 11 are schematic front views of the spray tower type device. l = gas-liquid contact device, 2 = gas passage, 3 = blower device, 4 =
Screen, 5=note i1 device, 6=pump, 11=rot, 12=wire, 13=wire gap, 14=passage, 1
5=demister-116=dust removal device, 17=replenishment liquid tank, 21=packed tower, 22=filling material, 23=nα, 24=
Gas, 25=Raschig Ring, 26=Teraret, 31=
spray tower. Patent applicant Sankyo Kogyo Co., Ltd. 2 Tomomi

Claims (1)

[Claims] It has a gas passage, a blower device provided in relation to the gas passage, and wires arranged in parallel on the same plane, and the gas passage is closed so that the gas passage is closed and the wire is horizontal. a screen disposed in the passage; a liquid injection device extending into the gas passage for pouring liquid onto the screen;
It consists of the gas passage for returning the liquid flowing down from the screen to the liquid injection device and a pump provided in a passage connecting the liquid injection device, and when the liquid is continuously poured onto the screen, the entire surface of the screen is A gas-liquid contact device that allows a film to be formed on the