JP3183898B2 - Blow-up type cleaning device with demister - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blow-up type cleaning apparatus in which an air cleaning chamber and a steam separator are integrally provided, and in particular, a demister for condensing moisture in the steam separator. The present invention relates to a blow-up type cleaning device.

[0002]

2. Description of the Related Art In recent years, sterile and dust-free environments have been required in industries such as medical treatments and semiconductors requiring high precision for protecting human body safety. Conventionally, in order to make the room such an environment, bacteria removal and dust removal have been performed by a system that uses a filter.

[0003] However, in the filter system, it is impossible to reduce the performance due to the volume of dust and the like, charge the dust in the air by the filter and the like, and remove a toxic gas generated in the room, so that a stimulating device is required. There were various problems.
In order to solve this problem, Japanese Patent Publication No. 57-55117 proposes a recirculation type air cleaning device provided outside a room.

That is, as shown in FIG. 5, this apparatus cleans the air in the air-conditioned room by a conduit and a fan, and
Air is introduced into the chamber 0, and cold water is sprayed from the spray nozzle 21 to humidify the water. Fine particles such as germs and dust in the gas can be dissolved or suspended in water to remove them. This is sent from a discharge pipe 22 opened at the lower center of the cleaning cyclone 20 to a lower water / water separation cyclone 23 where it is removed. The air that has left the air-water separation cyclone 23 is heated to an appropriate temperature, adjusted for humidity and temperature, and circulated again indoors. The sprayed water and the water removed by the gas-liquid separation cyclone 23 are collected in a water tank 24 and sent to the spray nozzle 21 again.

[0005] In such a reflux-type air purifying apparatus,
The liquid is sprayed on the circulating gas to directly control the temperature of the air. By spraying the liquid, fine particles such as germs and dust in the gas can be removed.

[0006]

However, in the above-mentioned reflux type air cleaning apparatus, it is necessary to provide two types of cyclones for cleaning and for separating water and water. For this reason, a larger area is required for installing the device than an air cleaning device using a conventional filter. In addition, each cyclone requires a space in the height direction in order to provide a discharge pipe for the next step. Due to such restrictions, it is often impossible to provide the reflux-type air cleaning device, and only to provide a device using a filter having various problems.

The present invention has been proposed to solve the above-mentioned drawbacks of the prior art, and its object is to integrate two types of devices for cleaning and cooling and for separating water and water. Accordingly, an object of the present invention is to provide a blow-up type cleaning device which can be installed in a limited space and has a higher cleaning effect than a device using a filter.

[0008]

According to a first aspect of the present invention, there is provided a blow-up type cleaning apparatus provided with a demister, comprising: a cylindrical air cleaning chamber having a top plate provided with a discharge port; A blow-up type cleaning apparatus comprising a demister integrally formed with the air cleaning chamber at the upper part of the chamber and comprising a water / water separator connected to the air cleaning chamber via the air outlet. In the air cleaning chamber, a spray nozzle is provided, and a direct expansion coil through which a refrigerant flows along the inner surface of the side wall is provided.
An air inlet is provided, and within the steam separator, a baffle plate is provided near an outlet of the air purification chamber, and a demister is provided above the baffle plate,
An air outlet is provided on a side wall of the steam separator, and a spray water circulation unit that supplies water that has passed through a sterilizing filter to purify air is connected to the spray nozzle. And Further, the blow-up type cleaning device provided with the demister according to claim 2 is a device for cleaning up the demister provided in the steam separator of the blow-up type cleaning device provided with the demister according to claim 1. A heater for controlling the temperature of the forming air is provided.

[0015]

The operation of the present invention having the above configuration is as follows. That is, according to the blow-up type cleaning device provided with the demister according to the first aspect, the air that needs to be cleaned is introduced into the air cleaning chamber from the air inlet at the lower part of the air cleaning chamber, and then turns upward. While flowing, the refrigerant disposed along the inner surface of the side wall in the air purification chamber is cooled by the flowing direct expansion coil. At this time, in the air cleaning chamber, droplets that have passed through the sterilization filter are sprayed from a spray nozzle connected to the spray water circulation means, and the air cooled by the direct expansion coil removes dust and bacteria by the droplets. It becomes clean air. Then, the air sent from the upper outlet of the air cleaning chamber to the steam separator is uniformly spread on the baffle plate disposed near the outlet, and is provided above the baffle plate. Excess water is condensed and removed through the demister and exhausted from the air outlet.

On the other hand, according to the blow-up type cleaning apparatus provided with the demister according to the second aspect, by providing a heater in the air-water separation chamber of the apparatus according to the first aspect, the temperature of the purified air can be controlled. Will be

[0018]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the embodiments shown in FIGS. FIGS. 1 to 3 show an embodiment of the first aspect of the present invention.

That is, the blow-up type cleaning apparatus of the present embodiment
It comprises a cylindrical air purification chamber 1 and a steam separator 2 provided on the top plate. An air inlet 3 opened in a tangential direction is provided at a lower portion of a side wall of the air cleaning chamber 1, and an air outlet 4 opened at the center of the top plate. The air purifying chamber 1 and the steam separator 2 communicate with each other through the air outlet 4. On the inner surface of the side wall of the air cleaning chamber 1, a direct expansion coil 5 through which a refrigerant at a constant temperature flows is spirally arranged along the side wall, and is connected to a cooling / circulating means (not shown). A water supply pipe 7 is disposed vertically in the center of the air purification chamber 1, and a plurality of spray nozzles 6 are provided around the water supply pipe 7. On the other hand, in the lower part of the air purification chamber 1, a water tank 8 is provided as a means for circulating spray water.
Are provided integrally with the air purification chamber 1. This water tank 8
Is provided with a sterilizing filter 9 and a suction pipe 10 below the filter, and the suction pipe 10 is connected to a water supply pipe 7 in the air purification chamber 1 via a pump 11.

On the other hand, the steam / water separator 2 includes an air purifying chamber 1.
A baffle plate 12 large enough to cover this opening is provided above the air discharge port 4 communicating with the air outlet 4, and a demister 13 for condensing moisture is provided above the baffle plate 12. Further, a demister 13 is provided in the steam-water separator 2.
A tapered portion 14 is provided from one upper side surface to the top plate, and an air outlet 15 is provided on a part of the facing surface. The outlet 15 is connected to a room for air conditioning.

The operation of the blow-up type cleaning apparatus provided with the demister of this embodiment configured as described above is as follows. That is, air for cleaning is introduced from an air inlet 3 below the air cleaning chamber 1 by a conduit and a fan (not shown), and is further swirled up in the air cleaning chamber 1. At this time, the sterilized cooling water that has passed through the sterilizing filter 9 from the water tank 8 below the air purification chamber 1 is sprayed into the air purification chamber 1 from the spray nozzle 6 of the water supply pipe 7 via the suction pipe 10 and the pump 11. . Therefore, the introduced air is supplied to the direct expansion coil 5.
Due to the refrigerant inside and the sprayed droplets, heat is exchanged quickly to reach a temperature almost equal to that of the cooling water, excess water is condensed and dewatered, and fine particles such as bacteria and dust in the air are thereby condensed. Is dissolved or suspended in water. The water containing fine particles such as germs and dust returns to the lower water tank 8,
After being filtered by the sterilizing filter 9 to remove fine particles such as germs and dust, it is reused as cleaning water.

The air purified in the air purifying chamber 1 contains a spray of sprayed moisture, and its humidity becomes supersaturated. This air is further blown up and rises from the air discharge port 4 provided on the top plate of the air purification chamber 1 to the steam separator 2 above the air discharge port 4. This air hits the baffle plate 12 at the entrance to the steam separator 2 and is uniformly diffused. The diffused air rises above the periphery of the baffle plate 12, and when passing through the demister 13, excess moisture in the air is condensed and removed.
5 is exhausted. Also at this time, fine particles such as germs and dust remaining in the air are dissolved or suspended by the removed water and return to the lower water tank 8.

In this case, since the water sprayed in the air cleaning chamber 1 has passed through the sterilizing filter 9, the demister 1
No germs propagate within 3 and clogging does not occur.

As described above, in the blow-up type cleaning apparatus provided with the demister of this embodiment, the flow of air is blown up to shorten the flow path to the next step. In order to reduce the size of the device because it integrates two types of devices, and to form a device without taper at the bottom of the device, install a device with high cleaning effect in a limited space. Can be. The present invention is not limited to the above-described embodiment, and specific shapes of the respective members, or respective mounting positions and methods can be appropriately changed.

For example, as shown in FIG. 4, it is possible to provide a reheat heater 16 above the demister 13 inside the steam separator. That is, in a sterile and dust-free room, it is necessary to control the temperature of the clean air discharged from the cleaning device in accordance with the required temperature conditions. For this reason, a reheat heater is conventionally provided in a duct such as a ceiling space where maintenance is difficult. For this reason, a large number of maintenance corridors and spaces above the ceiling are required, and it is one of the difficulties to install in a limited space. In order to solve this, a reheat heater 16 is provided above the demister 15 inside the steam-water separator 2 of the blow-up type cleaning device to control the temperature of the clean air, so that the maintenance becomes easy, and the installation location is also reduced. Problems can be solved.

Further, the clean air discharged from the steam separator is not limited to the saturation humidity, and the humidity can be adjusted by mixing with the dry air. Further, the humidity can be adjusted by utilizing a difference in saturation humidity due to a temperature difference between the temperature in the air cleaning chamber and the room temperature. On the other hand, without providing a direct expansion coil in the air / water separation air, the temperature can be adjusted simply by spraying water on the blown-up air to perform cleaning.

[0031]

As described above, according to the first aspect of the present invention, since the steam / water separator is integrally provided above the air purification chamber, the entire apparatus for purifying the air is made compact. Therefore, a device having a high air cleaning effect can be installed in a small space. Further, since the droplets sprayed on the air cooled by the direct expansion coil are water that has passed through a sterilizing filter, bacteria do not propagate in a demister provided in the steam separator, and the demister Clogging is avoided.

According to the second aspect of the present invention, since the reheat heater for controlling the temperature is provided in the air / water separation air, maintenance is simplified, and the heater is installed without considering the installation location. be able to.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of a blow-up type cleaning apparatus provided with a demister of the present invention.

FIG. 2 is a cross-sectional view taken along line AA of FIG.

FIG. 3 is a transverse sectional view taken along line BB of FIG. 1;

FIG. 4 is a longitudinal sectional view showing another embodiment of the present invention.

FIG. 5 is a side sectional view showing a conventional reflux-type air cleaning device.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 air purification chamber 2 air / water separator 3 air inlet 4 air outlet 5 direct expansion coil 6 spray nozzle 7 water supply pipe 8 water tank 9 sterilization filter 10 suction pipe 11 pump 12 baffle plate 13 demister 14 taper section 15 discharge port 16 Reheat heater 20 Cleaning cyclone 21 Spray nozzle 22 Discharge tube 23 Cyclone 24 for water / water separation Water tank

Continuation of the front page (51) Int.Cl. ⁷ Identification code FI F24F 3/044 F24F 3/044 F25B 39/02 F25B 39/02 A (56) References JP-A-62-61615 (JP, A) JP-A-62-61615 48-49075 (JP, A) JP-A-59-98714 (JP, A) JP-A 60-175518 (JP, A) JP-B Showa 42-15359 (JP, B1) Chemical Dictionary 9 (Compact Edition) ”(Showa 49-3-10) p. 215 (58) Fields investigated (Int. Cl. ⁷ , DB name) B01D 47/00-51/10 B04C 9/00 F24F 3 / 044 F25B 39/02

Claims (2)

(57) [Claims] 1. A cylindrical air purification chamber having a discharge port provided on a top plate, and the air purification chamber is formed integrally with the air purification chamber above the air purification chamber, and is formed through the discharge port. In a blow-up type cleaning apparatus including a demister including an air purification chamber and a steam separator connected to the air purification chamber, a spray nozzle is provided in the air purification chamber, and a refrigerant flows along an inner surface of a side wall thereof. A direct expansion coil is provided, an air inlet is provided at a lower portion of a side wall of the air cleaning chamber, and a baffle plate is provided inside the steam separator near an outlet of the air cleaning chamber. A demister is provided above the baffle plate, an air outlet is provided on a side wall of the steam separator, and the spray nozzle has water passing through a sterilizing filter for purifying air. Spray water circulation means to supply It has been continued, upflow type cleaning apparatus including a demister characterized by. 2. The demister according to claim 1, wherein a heater for controlling the temperature of the cleaning air is provided above the demister provided in the steam separator. Blow-up type cleaning device.