JP2021049077A - Deodorant liquid spraying system, deodorant liquid spraying device and deodorant liquid spraying method - Google Patents

Abstract

To provide a deodorant liquid spraying system or the like, capable of being introduced at low cost and capable of being maintained and managed easily.SOLUTION: A deodorant liquid spraying system 1000 for spraying deodorant liquid to a malodorous source, comprises: a dilution tank 50 for accumulating hypochlorous acid water whose hypochlorous acid concentration is 30 ppm or greater; a deodorant spraying nozzle 10 being coupled to the dilution tank 50 and spraying diluted hypochlorous acid water to a deodorant source; and a timer for controlling an operation timing for spraying the diluted hypochlorous acid water from the deodorant spraying nozzle 10 to a prescribed timing. Therefore, the diluted hypochlorous acid water with a prescribed concentration is sprayed not for masking or neutralization of an odor but for removing pathogenic bacteria of an odor, thereby efficiently deodorizing.SELECTED DRAWING: Figure 2

Description

The present invention relates to a deodorant liquid spraying system, a deodorant liquid spraying device, and a deodorant liquid spraying method.

In waste treatment facilities such as waste incinerators, chicken manure treatment facilities, and food processing facilities such as meat processing plants and dairy product manufacturing factories, the generation of foul odors has become a problem (for example, Patent Document 1). Such a foul odor not only imposes a burden on the workers at the site, but also there is a concern that the odor may spread to the surroundings of the facility. Therefore, deodorant measures are important.

Further, a deodorant sterilizer for such a waste treatment facility has been proposed (Patent Document 2). As shown in FIG. 5, this deodorizing sterilizer collects the odor in the facility into the duct 2, and provides a spraying means 5 in the middle of the duct 2 for spraying weakly acidic water in the form of mist. The inside of the duct 2 downstream of the reaction chamber 7 is used to react weakly acidic water with an odorous component. However, according to this deodorant sterilizer, it is necessary to install a duct for collecting odors in advance, and it is also necessary to provide a reaction chamber on the downstream side, which causes a problem that the installation cost is high. In addition, such cleaning and maintenance work inside the pipe is also required, and the maintenance cost is high. In addition, the deodorant had to be replenished on a regular basis, which was troublesome.

Japanese Patent No. 6445236 Japanese Unexamined Patent Publication No. 2002-301143

The present invention has been made in view of such a background. One of an object of the present invention is to provide a deodorant liquid spraying system, a deodorant liquid spraying device, and a deodorant liquid spraying method that can be introduced at low cost and are easy to maintain and maintain.

Means for Solving Problems and Effects of Invention

According to the deodorant liquid spraying system according to the first aspect of the present invention, it is a deodorant liquid spraying system that sprays a deodorant liquid to a malodor source, and is a hypochlorite having a hypochlorous acid concentration of 30 ppm or more. A dilution tank for storing water, a deodorant spray nozzle which is connected to the dilution tank and sprays diluted hypochlorous acid water to a deodorant source, and a deodorant spray nozzle for spraying diluted hypochlorous acid water. It can be provided with a timer that controls the operation at a predetermined timing. With the above configuration, it is possible to efficiently deodorize by spraying diluted hypochlorous acid water at a predetermined concentration to remove the causative bacteria of the odor instead of masking or neutralizing the odor.

Further, according to the deodorant spraying system according to the second aspect of the present invention, in addition to the above configuration, dichloroisocyanuric water stored in the stock solution first tank is supplied in powder form. It can be produced by dissolving sodium acid. With the above configuration, by supplying sodium dichloroisocyanurate in powder form, it is possible to obtain an advantage that maintenance can be facilitated by reducing the frequency of refilling as compared with the case of supplying it with liquid hypochlorous acid water.

Further, according to the deodorant spray system according to the third aspect of the present invention, in addition to any of the above configurations, it is further connected to the dilution tank to store a high concentration of hypochlorous acid water before dilution. A stock solution tank and a screw feeder that supplies the powdered sodium dichloroisocyanurate to the stock solution tank are provided, and by controlling the rotation amount of the screw feeder, hypochlorous acid in the dilution tank is provided. It can be configured to adjust the chloric acid concentration. With the above configuration, there is an advantage that the hypochlorous acid concentration of the hypochlorous acid water can be adjusted by a simple method of controlling the rotation of the screw feeder.

Furthermore, according to the deodorant liquid spraying system according to the fourth aspect of the present invention, in addition to any of the above configurations, the deodorant spray nozzle sprays diluted hypochlorous acid water in a hollow cone shape. Can be done.

Furthermore, according to the deodorant spraying system according to the fifth aspect of the present invention, in addition to any of the above configurations, the hypochlorous acid concentration in the dilution tank can be 100 ppm or more.

Furthermore, according to the deodorant spraying system according to the sixth aspect of the present invention, in addition to any of the above configurations, the hypochlorous acid concentration in the dilution tank can be set to 30 ppm to 200 ppm. ..

Furthermore, according to the deodorant spray system according to the seventh aspect of the present invention, in addition to any of the above configurations, the deodorant spray nozzle uses diluted hypochlorous acid water with an average particle size of 30 μm or more. It can be controlled to spray at 50 μm.

Furthermore, according to the deodorant spraying system according to the eighth aspect of the present invention, in addition to any of the above configurations, the timer dispenses diluted hypochlorous acid water every 30 minutes for 3 minutes. Can be controlled to spray from.

Furthermore, according to the deodorant spraying system according to the ninth aspect of the present invention, in addition to any of the above configurations, a fragrance tank for further storing fragrance and a fragrance connected to the fragrance tank to spray the fragrance. It can be equipped with a spray nozzle. With the above configuration, fragrance is added to the chlorine odor of hypochlorous acid to suppress the odor of diluted hypochlorous acid water to be sprayed, and the environment of workers working in harsh environments that require deodorization is improved. Be done.

Furthermore, according to the deodorant spray system according to the tenth aspect of the present invention, in addition to any of the above configurations, the fragrance spray nozzle can be configured to overlap the spray direction of the deodorant spray nozzle. .. With the above configuration, it is possible to alleviate the odor of the hypochlorous acid water by spraying the fragrance on top of the spray of the diluted hypochlorous acid water from the deodorant spray nozzle.

Furthermore, according to the deodorant spraying system according to the eleventh aspect of the present invention, in addition to any of the above configurations, the fragrance can be limonene. With the above configuration, by using limonene having a high residual effect of scent, it is possible to provide a comfortable environment in terms of odor.

Furthermore, according to the deodorant spray system according to the twelfth aspect of the present invention, in addition to any of the above configurations, the deodorant spray nozzle can be installed in the waste pit of the waste treatment plant. ..

Furthermore, according to the deodorant liquid spraying system according to the thirteenth aspect of the present invention, in addition to any of the above configurations, the deodorant spray nozzle can be installed in a residue treatment plant of a food factory.

Furthermore, according to the deodorant supply device system according to the fourteenth aspect of the present invention, a hopper that stores powdered sodium dichloroisocyanurate and a hypochlorous acid in which the sodium dichloroisocyanurate in the hopper is dissolved are dissolved. A stock solution tank for storing chloric acid water, a dilution tank for diluting the hypochlorous acid water supplied from the stock solution tank to a hypochlorous acid concentration of 30 ppm or more, and a dilution tank connected to the dilution tank to dilute dichloroisocyanuric acid. It includes a pump for connecting to a deodorant spray nozzle that sprays acid water to a deodorant source, and a timer that controls the operation of spraying diluted hypochlorous acid water from the deodorant spray nozzle at a predetermined timing. be able to. With the above configuration, diluted hypochlorous acid water at a predetermined concentration can be sprayed from the deodorant spray nozzle, and by removing the causative bacteria of the odor instead of masking or neutralizing the odor, deodorization can be performed efficiently. It becomes possible to plan. Further, by supplying sodium dichloroisocyanurate in the form of powder, there is an advantage that the frequency of refilling can be reduced and maintenance can be facilitated as compared with the case where the sodium dichloroisocyanurate is supplied in the form of liquid hypochlorite water.

Furthermore, according to the deodorant liquid spraying method according to the fifteenth aspect of the present invention, it is a deodorant liquid spraying method for spraying a deodorant liquid to a malodor source, and powdered sodium dichloroisocyanurate is used. A step of dissolving to generate hypochlorous acid water and storing it in a stock solution tank, a step of diluting the hypochlorous acid water in the stock solution tank to adjust the hypochlorous acid concentration to 30 ppm to 200 ppm, and the dilution. The step of spraying the diluted hypochlorous acid water from the deodorant spray nozzle to the deodorant source can be included. As a result, it is possible to efficiently deodorize by spraying diluted hypochlorous acid water at a predetermined concentration to remove the causative bacteria of the odor instead of masking or neutralizing the odor.

Furthermore, according to the deodorant liquid spraying system according to the sixteenth aspect of the present invention, in addition to the above, the step of spraying diluted hypochlorous acid water from the deodorant spray nozzle is repeated at a predetermined cycle. be able to.

It is a schematic diagram which shows the example which installed the deodorant liquid spraying system in a waste incinerator. It is a block diagram which shows the deodorant liquid spraying system which concerns on Embodiment 1. It is a schematic diagram which shows the setting screen of a controller. It is a block diagram which shows the deodorant liquid spraying system which concerns on Embodiment 2. It is a schematic diagram which shows the conventional deodorant sterilizer. It is a block diagram which shows the deodorant liquid spraying system which concerns on Embodiment 3. It is a schematic diagram which shows the hypochlorite water generation part.

Hereinafter, embodiments and examples according to the present invention will be described with reference to the drawings. However, the embodiments and examples shown below are examples for embodying the technical idea of the present invention, and the present invention is not limited to the following. In addition, the size and positional relationship of the members shown in each drawing may be exaggerated to clarify the explanation. Further, in the following description, members having the same or the same quality are shown with the same name and reference numeral, and detailed description thereof will be omitted as appropriate. Further, the parts having the same reference numerals appearing in a plurality of drawings indicate the same or equivalent parts or members. Further, each element constituting the embodiment and the embodiment according to the present invention may be a mode in which a plurality of elements are composed of the same member and one member also serves as a plurality of elements, or conversely, one member. It is also possible to share the functions of the above with a plurality of members. In addition, the contents described in some examples and embodiments can be used in other embodiments and embodiments. Further, in the following description, terms indicating a specific direction or position (for example, "top", "bottom", "right", "left", and other terms including those terms) are used as necessary. However, the use of these terms is for facilitating the understanding of the invention with reference to the drawings, and the meaning of these terms does not limit the technical scope of the present invention. In addition, in this specification, "providing" is used in the sense of including both those provided as a separate member and those configured as an integrated member.
[Embodiment 1]

The deodorant liquid spraying system, the deodorant liquid spraying device, and the deodorant liquid spraying method according to the present embodiment are used for waste treatment facilities such as waste incinerators, chicken manure treatment facilities, meat processing plants, dairy products factories, and other food processing facilities. Deodorize by installing in an area where bad odors are generated, such as a facility or a residue treatment plant. Hereinafter, an example in which the deodorant liquid spraying system 1000 is installed in the waste incinerator as the first embodiment will be described with reference to FIG. In this deodorant spray system 1000, the deodorant spray nozzle 10 is arranged separately from the deodorant liquid supply device 100. In the waste incinerator shown in FIG. 1, the waste W is transported to the waste incinerator 10 by the transport means T (for example, truck T). The truck T is accepted by the platform PF. The transported waste W is thrown into the garbage pit PT from the truck T via the throwing section A and stored. The stored waste W is agitated, mixed and homogenized. The waste W in the mixed waste pit PT is collected by a transfer means (for example, a crane or the like), put into a hopper, transferred from the hopper to an incinerator, and incinerated. In such a waste incinerator, since a strong foul odor is generated in the waste pit PT that stores the waste W, deodorant spray nozzles 10 for spraying the deodorant liquid are provided at a plurality of places above the waste pit PT. Then, the deodorant is deodorized by spraying the deodorant liquid at a predetermined timing.

The deodorant spray nozzle 10 is provided above the waste pit PT and around the waste pit PT. The deodorant liquid is spatially sprayed by the deodorant spray nozzle 10 from above toward the waste W in the garbage pit PT. By arranging the deodorant spray nozzles 10 at a plurality of locations so as to surround the upper part of the waste pit PT, the deodorant liquid can be evenly sprayed on the waste pit PT. Further, by arranging the deodorant spray nozzle 10 above the garbage pit PT, the deodorant liquid is easily scattered and diffused in the garbage pit PT.

Similarly, since a foul odor is also generated in the platform PF where the trucks T gather, it is preferable to provide the deodorant spray nozzle 10 above the platform PF. For example, a deodorant spray nozzle 10 is provided above each of the portions where a plurality of trucks T are arranged side by side. For example, the platform PF is provided with four spray nozzles. Further, the deodorant spray nozzle 10 may be appropriately arranged at another source of bad odor or a portion where the scattering of the bad odor is desired to be prevented.

The timing of spraying the deodorant liquid in the garbage pit PT and the timing of spraying the deodorant liquid on the platform PF or the like may be set simultaneously or independently. For example, the deodorant liquid is sprayed into the garbage pit PT at predetermined intervals (for example, once every 30 minutes for about 2 minutes), while the platform PF is sprayed with a longer cycle (for example, in 1 hour). It may be set to automatically spray the deodorant liquid for a predetermined time (once, about 1 minute). Alternatively, the deodorant liquid may be sprayed onto the platform PF by detecting the timing when the truck is laid sideways with a sensor or the like. As a result, efficient deodorant spraying can be achieved.
(Deodorant spray system 1000)

Next, a block diagram of the deodorant spray system 1000 is shown in FIG. The deodorant liquid spraying system 1000 shown in this figure includes a deodorant liquid supply device 100 and a deodorant spray nozzle 10. The deodorant liquid supply device 100 includes a hopper 20, a stock solution tank 30, a sub tank 40, a dilution tank 50, first pumps to fourth pumps PP1 to PP4, and a controller 60 for controlling these. Valves VVs are appropriately arranged on the input side and the output side of the first pump to the fourth pumps PP1 to PP4. Further, the controller 60 controls the operations of the first pumps to the fourth pumps PP1 to PP4, the valve VV, etc., and while generating a deodorant liquid having a predetermined concentration, deodorizes from the deodorant spray nozzle 10 at a predetermined timing. Spray the liquid onto the area to be deodorized.

The deodorant liquid supply device 100 can be arranged in the vicinity of the deodorant spray nozzle 10, that is, in the deodorization target area where the deodorant source exists, but from the viewpoint of workability, only the deodorant spray nozzle 10 is used. Is installed in the deodorant target area, while the deodorant liquid supply device 100, which is other equipment, is preferably installed in another place. As a result, it is not necessary to be exposed to bad odors during work such as replenishment and maintenance, and it is not necessary to climb to a high place where the deodorant spray nozzle 10 is installed, which is excellent in accessibility. In the example of FIG. 2, the dilution tank 50 and the deodorant spray nozzle 10 are connected by a pipe and can be installed in different places. In the example of the waste incinerator of FIG. 1, the deodorant spray nozzle 10 is installed at a high place, for example, 4F, while the other deodorant liquid supply device 100 is installed on 1F.

The dilution tank 50 stores the deodorant liquid. In order to adjust the deodorant liquid to a predetermined concentration and amount, a hopper 20, a stock solution tank 30, and a sub tank 40 are provided in front of the dilution tank 50.
(Deodorant)

Hypochlorite water is used as the deodorant. Hypochlorite water has a high deodorizing effect when sprayed. Conventionally, hypochlorous acid water has been known to have a bactericidal action, and is used for sterilization and disinfection applications. The present inventor has noted that the bactericidal ability of hypochlorous acid water is also effective against the causative bacteria that cause malodor, that is, the deodorizing effect is exhibited by killing the causative bacteria. , Used as a deodorant. In conventional deodorization, masking is used to cover up bad odors with a strong scent like an air freshener, and odor neutralization and deodorization is used to neutralize and offset bad odors with another odor. Although methods of lowering the sensory level to make the odor almost odorless have been used, the causative bacteria of the odor exist in these methods, and the odor is merely prevented from being perceived by the operator. On the other hand, the deodorant spray system 1000 according to the present embodiment employs a fundamental method of attacking the causative bacteria of the malodor to reduce the concentration and suppress the generation of the odor. It has the advantage of being highly effective.

In order to obtain hypochlorous acid water, the deodorant spray system 1000 according to the present embodiment dissolves powdered sodium dichloroisocyanurate. As a result, a desired concentration of hypochlorous acid water can be obtained at a low cost as compared with the method of obtaining hypochlorous acid water by electrolysis. Also, the regular replenishment work of the deodorant liquid is superior in terms of handling and storage because the powdered sodium dichloroisocyanurate is lighter and smaller in volume than when it is supplied as a liquid. In addition, the replenishment cost can be significantly reduced. According to the estimation by the present inventor, it is next to the one-month liquid required for deodorizing a general waste incinerator with a general waste pit volume of 16,240,900,000 m3 (length 15.5 m x width 26 m x height 40.3 m). The amount of chloric acid water is about 2 million yen, whereas when the sodium dichloroisocyanuric acid according to the present embodiment is used, it can be suppressed to about 800,000 yen. The particle size and shape of the sodium acid are not particularly limited, and may be, for example, granules or pellets. However, a smaller particle size is preferable because it has a larger surface area and is more likely to melt.
(Concentration of deodorant)

As for the concentration of the deodorant, the concentration of hypochlorous acid is 30 ppm or more. Generally, the higher the concentration of hypochlorous acid, the greater the deodorizing effect. However, as the concentration of hypochlorous acid increases, the consumption of powdered sodium dichloroisocyanurate increases, and the running cost increases. Further, as the concentration of hypochlorous acid increases, there is a concern that the corrosive effect of the metal also increases. Therefore, the concentration is set according to the required deodorant performance. For example, in the use of a waste incinerator, 100 ppm or more is preferable. More preferably, it is set to 100 ppm to 200 ppm in consideration of safety to the human body. In addition, the hypochlorous acid concentration may be 30 ppm to 200 ppm in a scene where a bad odor is relatively weak, such as in a food processing facility. In particular, about 30 ppm is desirable for the purpose of sterilization, and 200 ppm is desirable for the purpose of deodorization. According to the test conducted by the present inventor, when the hypochlorous acid concentration is 30 ppm to 100 ppm, the deodorizing effect is relatively weak, so that it is effective in a relatively low volume closed space, like a garbage incinerator. It has been found that 100 ppm to 200 ppm is more effective for deodorizing in a vast space. The results are shown in Table 1 below.

Here, the applicant of the present application injects a predetermined concentration of ammonia into a 1 L gas collection bag (tedler bag), further injects 3 ml of a predetermined concentration of hypochlorous acid water, and changes the ammonia concentration with a gas tech detector tube. I examined. The concentration of ammonia was 78 ppm or more (unmeasurable), 50 ppm, and 20 ppm. The concentration of hypochlorous acid water was set to 30 ppm, 100 ppm, and 200 ppm. The gas tech detector tube used for the measurement was for ammonia of model 3 L, the measurement range was 0.5 to 78 ppm, and the suction time was 45 seconds.

From Table 1, it was confirmed that in each case, a decrease in ammonia concentration was observed and a deodorizing effect was exhibited. In each case, it was found that the higher the concentration of hypochlorous acid water, the higher the deodorizing effect. In particular, when the ammonia concentration was as high as 78 ppm or more, the deodorizing effect was also remarkable. On the contrary, when the ammonia concentration was 20 ppm, the difference due to the concentration of hypochlorous acid water could not be detected.
(Hopper 20)

In the example shown in FIG. 2, powdered sodium dichloroisocyanurate is charged into the hopper 20. The charging to the hopper 20 may be performed manually, or may be automated by using a screw feeder 22 or the like.

The output end of the hopper 20 is communicated with the stock solution tank 30. The stock solution tank 30 stores hypochlorite water in which sodium dichloroisocyanurate is dissolved in the hopper 20. Therefore, the stock solution tank 30 is communicated with the first pump PP1 for supplying a solvent for dilution, for example, water from the outside. Further, the stock solution tank 30 may be provided with blades for stirring or the like, if necessary.

As described above, the reason for separating the stock solution tank 30 and the dilution tank 50 is that the productivity can be improved by separating the melting and the concentration adjustment as separate steps. That is, if it is attempted to obtain hypochlorous acid water having a predetermined concentration at once in the dilution tank, it is troublesome to adjust the concentration and it is not easy to uniformly melt the water. On the other hand, first, powdered sodium dichloroisocyanurate is rapidly obtained in an environment where it is easy to melt, and then the concentration is adjusted in another tank to efficiently obtain the desired concentration. Dichloroisocyanuric acid water with a high concentration can be easily obtained. In particular, by preparing a stock solution of high-concentration hypochlorous acid water and then diluting it, it is possible to efficiently adjust the hypochlorite water having a desired concentration. In addition, by preparing a sub tank 40 between the stock solution tank 30 and the dilution tank 50 and preparing diluted dichloroisocyanuric acid water in several portions, the equipment can be miniaturized and stirring can be facilitated. In addition, a small amount of sodium dichloroisocyanurate can be easily melted to obtain a uniform melt.

However, the number of such tanks can be appropriately adjusted according to the required processing capacity and processing speed. In the example of FIG. 2, three tanks, a stock solution tank 30, a sub tank 40, and a dilution tank 50, are prepared as tanks for storing the deodorant liquid, but the present invention is not limited to this configuration, and for example, a plurality of sub tanks may be prepared. On the contrary, the sub tank may be omitted.
(Screw feeder 22)

The output end of the hopper 20 is opened above the stock solution tank 30. A screw feeder 22 is provided at the output end of the hopper 20. The screw feeder 22 supplies a predetermined amount of powdered sodium dichloroisocyanurate from the hopper 20 to the stock solution tank 30. The amount of rotation of the screw feeder 22 is controlled by the controller 60. Here, the amount of sodium dichloroisocyanurate charged into the dilution tank 50 is adjusted by the rotation time of the screw feeder 22. With this configuration, the hypochlorous acid concentration of the hypochlorous acid water can be adjusted by a simple method of controlling the rotation time of the screw feeder 22.

The controller 60 adjusts the supply amount of sodium dichloroisocyanurate to be charged into the dilution tank 50 from the input unit. A touch panel, physical buttons, knobs, console, etc. provided on the controller 60 can be used as the input unit. It is also possible to make settings by wire or wireless communication from a remote location via LAN or WiFi.

An example of setting the supply amount in the controller 60 is shown in FIG. In the example shown in this figure, the input unit for setting is composed of the touch panel 61 and the physical switch 62. Here, by switching the switch 62, it is possible to switch to a mode having a different supply amount, and the supply amount in each mode is set from the touch panel 61. In this example, three modes of "fine", "cloudy", and "rain" are prepared so that the user can easily understand them, and the patterns of "fine", "cloudy", and "rain" are displayed at each position where the switch 62 is switched. It is displayed. Further, on the touch panel 61, the amount of sodium dichloroisocyanurate supplied in each of the "fine", "cloudy", and "rain" modes is set as the rotation time of the screw feeder 22 in the "drug supply time" in FIG. To do. In this example, when the item to be changed is touched from the touch panel 61, the increase or decrease of the time can be specified by an arrow or a numerical value. In the example of FIG. 3, when the “fine” mode is selected, the screw feeder 22 is rotated for 12 seconds to charge the sodium dichloroisocyanurate into the stock solution tank 30. With this amount, the hypochlorous acid concentration of the deodorant liquid becomes 220 ppm, which is used for checking the deodorant performance at the time of inspection. In the "rain" mode, the rotation time of the screw feeder 22 is 10 seconds, and the hypochlorous acid concentration is 200 ppm. Used during normal operation. Further, in the "cloudy" mode, the rotation time of the screw feeder 22 is 4 seconds, and the hypochlorous acid concentration corresponds to 80 ppm. As described above, during operation, the hypochlorous acid concentration can be easily changed and the deodorizing effect can be adjusted only by switching the switch 62.

Needless to say, the switch 62 is not essential and may be omitted.

When the powdered sodium dichloroisocyanurate is melted in water in the stock solution tank 30 to generate a stock solution of hypochlorous acid water in this way, it is moved to the sub tank 40. The stock solution tank 30 and the sub tank 40 are connected by a second pump PP2. When the stock solution tank 30 is filled with a predetermined amount of water and reaches a predetermined water level, the first pump PP1 is automatically stopped, the second pump PP2 is driven, and the stock solution is transferred to the sub tank 40. For example, if a water level sensor is arranged in the stock solution tank 30 and the water level rises to a predetermined height corresponding to the upper limit, the first pump PP1 is automatically stopped, and if the water level on the sub tank 40 side is equal to or lower than the predetermined value, the first pump is stopped. (2) Drive the pump PP2. When the water level drops to a predetermined height, which is the lower limit, the second pump PP2 is stopped and the first pump PP1 is driven.

In the stock solution tank 30, it is not always necessary to add sodium dichloroisocyanurate to water. For example, when the dilution tank 50 is full, the amount of sodium dichloroisocyanurate required to obtain a predetermined hypochlorous acid concentration is put into a single stock solution in advance, and then only water is stored in the stock solution tank 30 to store the sub tank. It may be charged into the dilution tank 50 via 40. As a result, the operation of the screw feeder 22 can be reduced and a large amount of hypochlorous acid water can be efficiently prepared. On the other hand, in the method of adding 501 cups of sodium dichloroisocyanurate to the stock solution tank 30 at a time and then diluting with water, the concentration of hypochlorous acid water finally obtained in the dilution tank 50 is obtained. It is possible that there will be variations in. Therefore, the frequency of supplying sodium dichloroisocyanurate can be adjusted according to the application and the required accuracy. For example, in the case of a deodorant liquid sprayed on a waste incinerator, a large amount of deodorant liquid is sprayed at once from a large number of deodorant spray nozzles 10 over an extremely large area, so that strict concentration control is generally considered unnecessary. Therefore, the above-mentioned method of adding sodium dichloroisocyanurate at a time is sufficient. On the other hand, more accurate concentration control is required in an environment where deodorization in a narrower space such as deodorization in a meat processing plant and sterilization performance are required in addition to deodorization. Instead of supplying sodium dichloroisocyanurate all at once, it is suitable to supply a small amount of sodium dichloroisocyanurate every time the stock solution is adjusted.
(Sub tank 40)

The sub tank 40 is connected to the stock solution tank 30 via the second pump PP2 on the intake end side and to the dilution tank 50 via the third pump PP3 on the discharge end side. Further, the sub tank 40 may also be provided with stirring blades or the like, if necessary. Further, a water level sensor may be provided in the difference tank. For example, when the water level in the sub tank 40 rises to a predetermined height corresponding to full water, the second pump PP2 is automatically stopped and the water level on the dilution tank 50 side becomes a predetermined value. If the following, the third pump PP3 is driven. When the water level in the sub tank 40 drops to a predetermined height corresponding to the lower limit, the third pump PP3 is stopped and the second pump PP2 is allowed to be driven.

The sub tank 40 has an intermediate size that is larger than the stock solution tank 30 and smaller than the dilution tank 50. By interposing such a sub tank 40 between the stock solution tank 30 and the dilution tank 50, the movement from the stock solution tank 30 to the dilution tank 50 can be smoothly performed. For example, when the dilution tank 50 is nearly full and cannot be received from the stock solution tank 30, it can be temporarily held in the sub tank 40 to continue the production of the stock solution in the stock solution tank 30, and the efficiency can be improved.
(Dilution tank 50)

As described above, the dilution tank 50 stores the diluted hypochlorous acid water obtained by diluting the hypochlorous acid water to a predetermined concentration. The dilution tank 50 is connected to the sub tank 40 via the third pump PP3 on the intake end side and to the deodorant spray nozzle 10 via the fourth pump PP4 on the discharge end side. Since the deodorant spray nozzle 10 is located at a high place, is connected to a high position via a pipe at a long distance, and a plurality of deodorant spray nozzles 10 are installed, the fourth pump PP4 has a high load. It may be a type that can handle the above, or a plurality of units may be provided. Further, a sub tank 42 may be separately provided at a high place. Further, a compressor or the like may be connected in front of the deodorant spray nozzle 10.
(Deodorant spray nozzle 10)

The deodorant spray nozzle 10 is connected to the dilution tank 50 via the fourth pump PP4. The deodorant spray nozzle 10 sprays diluted hypochlorous acid water onto the deodorant source. The deodorant spray nozzle 10 includes a known pressurizing means such as a compressor for obtaining a pressurized gas required for spraying the deodorant liquid.

The deodorant spray nozzle 10 sprays diluted hypochlorous acid water in the form of fine particles. It is preferable to spray the diluted hypochlorous acid water so that the average particle size is 30 μm to 50 μm. As such a deodorant spray nozzle 10, a one-fluid nozzle that ejects a liquid with the hydraulic pressure of the deodorant liquid, a two-fluid nozzle that crushes the liquid with a gas such as air, atomizes the liquid, and sprays the liquid are preferably used. it can.

Further, it is preferable that the deodorant spray nozzle 10 sprays the diluted hypochlorous acid water in the shape of a hollow cone. The holocorn nozzle has no internal structure and is less likely to be clogged, and has the advantage of being excellent in maintainability.

In the deodorant spray system 1000 that handles hypochlorous acid water, there is a possibility of corrosion. Therefore, it is preferable that the piping, the deodorant spray nozzle 10, and the like are made of a corrosion-resistant material. ..

Further, another nozzle may be appropriately arranged adjacent to the deodorant spray nozzle 10. For example, a nozzle for spraying an insect repellent solution, a fragrance spraying nozzle for spraying a fragrance described later, and the like can be mentioned.
(Timer)

Further, the spraying from the deodorant spray nozzle 10 can be set to be performed at a predetermined cycle. Such a setting can be made with a timer. For example, the controller 60 is provided with a timer function. The cycle of spraying the deodorant liquid from the deodorant spray nozzle 10 and the amount of one spray, that is, the spray time are set according to the volume of the deodorant target area, the degree of odor, and the like. In the example of FIG. 1, the timer is set to spray the diluted hypochlorous acid water from the deodorant spray nozzle 10 for 3 minutes every 30 minutes.
[Embodiment 2]

The deodorant spray system can also add other scents in addition to the deodorizing function of bad odors. Such an example is shown in FIG. 4 as the deodorant liquid spraying system 2000 according to the second embodiment. The deodorant spray system 2000 shown in this figure includes a hopper 20, a stock solution tank 30, a sub tank 40, a dilution tank 50, a deodorant spray nozzle 10, first pumps to fifth pumps PP1 to PP5, and a fragrance. A tank 70, a fragrance spray nozzle 80, and a controller 60 for controlling these are provided. The same members as those in the first embodiment will be designated by the same reference numerals, and detailed description thereof will be omitted as appropriate.

The deodorant spray system 2000 according to the second embodiment sprays the deodorant liquid from the deodorant spray nozzle 10 and also sprays the fragrance from the deodorant spray nozzle 10. As a result, the deodorant liquid removes the causative bacteria of the malodor to weaken the malodor, and further adds a fragrance to the hypochlorous acid-based chlorine odor to suppress the odor of the diluted hypochlorous acid water to be sprayed and deodorize. It is possible to improve the environment of workers who work in a harsh environment that requires. As the fragrance, one that can obtain odor masking and odor neutralization and deodorizing effects can be appropriately adopted. As the masking, for example, a citrus fragrance is preferable. This makes it possible to provide a refreshing citrus aroma. Specifically, limonene, which is easily available and inexpensive, is preferable. Limonene is a typical monoterpene contained in citrus peels. Yuzu fragrance may be used. By using a yuzu fragrance that has a high residual effect on the scent, it is possible to provide a comfortable environment in terms of odor.

The deodorant spray system 2000 of FIG. 4 includes a fragrance tank 70, a fifth pump PP5, and a fragrance spray nozzle 80, in addition to the configuration of FIG. The fragrance tank 70 stores fragrances. The fragrance tank 70 is connected to the fragrance spray nozzle 80. Further, a valve, a compressor, a sub tank, or the like is connected between the fragrance tank 70 and the fragrance spray nozzle 80, if necessary.

The fragrance spray nozzle 80 sprays the fragrance supplied from the fragrance tank 70. As the fragrance spray nozzle 80, a nozzle similar to the deodorant spray nozzle 10 (for example, a two-fluid nozzle) can be used. By adding a separate nozzle for spraying the fragrance in this way, it is possible to add the fragrance to the existing deodorant spraying system.

The fragrance spray nozzle 80 is preferably arranged so as to overlap the spray direction of the deodorant spray nozzle 10. By spraying the fragrance on top of the spray of the diluted hypochlorous acid water from the deodorant spray nozzle 10 in this way, it is possible to cover the odor of the hypochlorous acid water with a citrus odor. Further, by crossing the axes of the spray, the deodorant droplets and the fragrance droplets collide with each other and are agitated at the intersection, and the effect of more uniformly dispersing the deodorant liquid and the fragrance can be expected.

The fragrance spray nozzle 80 and the deodorant spray nozzle 10 may be integrated. For example, by using a four-fluid nozzle, different liquids, here deodorant and fragrance, may be sprayed from a common nozzle. With this configuration, the number of nozzles to be installed can be reduced, and the timing of spraying the deodorant liquid and the fragrance can be set at the same time, which has the advantage of simplifying the design and operation.
[Embodiment 3]

Alternatively, a fragrance tank may be connected in the deodorant liquid piping before spraying the deodorant liquid with the deodorant spray nozzle 10. As a result, a deodorant liquid in which hypochlorous acid water and a fragrance are mixed in advance is sprayed. With this method, the fragrance can be added to the deodorant solution most easily. An example of such a case is shown in FIG. 6 as the deodorant liquid spraying system 3000 according to the third embodiment. The deodorant liquid spraying system 3000 shown in this figure is composed of a deodorant liquid spraying system 3000A that sprays the deodorant liquid on the garbage pit PT side and a deodorant liquid spraying system 3000B that sprays the deodorant liquid on the platform PF side. ing. The deodorant spray system 3000A on the waste pit PT side includes a deodorant spray nozzle 10 similar to that shown in FIG. 2, a dilution tank 50, and a hypochlorous acid water generator including a hopper and a stock solution tank in the previous stage. It has 1. On the other hand, the deodorant spray system 3000B on the platform PF side also includes a deodorant spray nozzle 10B, a dilution tank 50B, and the like. In this example, the dilution tank 50A and the dilution tank 50B are connected to generate a deodorant liquid by the common hypochlorous acid water generation unit 1, and the deodorant liquid is sprayed on the platform PF and the garbage pit PT, respectively.

Further, the fragrance tank 70 is provided, and the fragrance tank 70 is connected only to the pipe 90B of the deodorant spray system 3000B on the platform PF side. In other words, the fragrance tank 70 is not connected to the pipe 90A of the deodorant spray system 3000 on the waste pit PT side. In other words, while spraying fragrance on the platform PF side, which is an environment where garbage trucks gather and the workers are directly exposed to bad odors, on the other hand, on the garbage pit PT side, which is basically isolated and there are no workers. , Not sprayed with fragrance. As a result, while improving the environment by adding fragrance to the work environment where there are workers, the amount of fragrance used is reduced and the running cost is reduced by not adding fragrance to the environment where there are basically no workers. Efficient operation is achieved.
(Hypochlorite water generation unit 1)

Here, the details of the hypochlorous acid water generation unit 1 are shown in FIG. The hypochlorous acid water generation unit 1 can be applied not only to the third embodiment but also to the first and second embodiments. The hypochlorous acid water generation unit 1 shown in FIG. 7 shows a configuration in which the stock solution tank 30 is incorporated in the sub tank 40. The stock solution tank 30 is arranged in the sub tank 40 and has an upper end open. Therefore, when the stock solution tank 30 is full, the overflowing stock solution is filled in the sub tank 40. Further, the output end of the hopper 20 is arranged on the upper end side of the stock solution tank 30 as in FIG. 2, and powdered sodium dichloroisocyanurate is supplied from the hopper 20 to the stock solution tank 30. Further, the bottom surface of the stock solution tank 30 is inclined so that the powdery sodium dichloroisocyanurate supplied from the hopper 20 can easily collect at the deepest inclined position (right end in FIG. 7). Further, by arranging the water supply port, which is a solvent for diluting sodium dichloroisocyanurate, at this position, powdered sodium dichloroisocyanurate is collected in one place and easily dissolved. In this way, powdered sodium dichloroisocyanurate is dissolved in water in the stock solution tank 30 to accumulate the stock solution of hypochlorite water, and when the stock solution tank 30 is full, the overflowing stock solution accumulates in the sub tank 40. ..

As described above, powdered sodium dichloroisocyanurate is not always supplied to the stock solution tank 30. By supplying only water containing no sodium dichloroisocyanurate to the stock solution tank 30 and charging it into the sub tank 40, the concentration of sodium dichloroisocyanurate stored in the sub tank 40 can be diluted.

Further, a third pump PP3 for sending the liquid stored inside to the dilution tank 50 is connected to the lower part of the sub tank 40. Further, in the sub tank 40, an upper limit switch 41A and a lower limit switch 41B are arranged as a water level sensor 41 for detecting the water level in the sub tank 40. The upper limit switch 41A is arranged at the upper limit position of the water level in the sub tank 40, and the lower limit switch 41B is arranged at the lower limit position of the water level. Thereby, the operation of the third pump PP3 can be controlled to control the amount of the undiluted solution in the sub tank 40. For example, when the upper limit switch 41A detects that the water level in the sub tank 40 has reached the upper limit, the supply of water or the like to the stock solution tank 30 is stopped, and the third pump PP3 is driven to charge the liquid stored in the sub tank 40. It is sent to the dilution tank 50. On the other hand, when the lower limit switch 41B detects that the water level in the sub tank 40 has reached the lower limit, the third pump PP3 is stopped, and the supply of water and sodium dichloroisocyanurate to the stock solution tank 30 is restarted to restart the sub tank 40. Store the liquid in. In this way, the hypochlorite water generation unit 1 uses the stock solution tank 30 and the sub tank 40 to generate a deodorant solution for hypochlorite water.

In this way, by spraying diluted hypochlorous acid water at a predetermined cycle to remove the odor-causing bacteria, it is possible to efficiently deodorize.

The deodorant liquid spraying system, deodorant liquid spraying device, and deodorant liquid spraying method of the present disclosure include deodorization in waste treatment facilities such as waste incinerators and deodorization in chicken manure treatment facilities, meat processing plants, dairy products factories, and the like. In addition, it can be suitably used for deodorizing industrial waste treatment facilities, sewage / human waste treatment facilities, livestock farming, and sites handling feed and fertilizer.

1000, 2000, 3000, 3000A, 3000B ... Deodorant spray system 100 ... Deodorant supply device 2 ... Duct 5 ... Spraying means 7 ... Reaction chamber 10, 10B ... Deodorant spray nozzle 20 ... Hopper 22 ... Screw feeder 30 ... Stock solution tank 40 ... Sub tank 41 ... Water level sensor; 41A ... Upper limit switch; 41B ... Lower limit switch;
42 ... Sub tank 50, 50B ... Diluting tank 60 ... Controller 61 ... Touch panel 62 ... Switch 70 ... Perfume tank 80 ... Perfume spray nozzle 90A, 90B ... Piping PP1 to PP5 ... First pump to fifth pump VV ... Valve W ... Waste T ... Truck PF ... Platform PT ... Garbage pit A ... Input section

Claims (16)

A deodorant spraying system that sprays deodorant liquid on a malodor source.
A dilution tank that stores hypochlorous acid water with a hypochlorous acid concentration of 30 ppm or more,
A deodorant spray nozzle that is connected to the dilution tank and sprays diluted hypochlorous acid water to a deodorant source and an operation of spraying diluted hypochlorous acid water from the deodorant spray nozzle are controlled at predetermined timings. Deodorant spray system with a timer. The deodorant spraying system according to claim 1.
A deodorant spraying system in which the hypochlorous acid water stored in the first undiluted solution tank is produced by dissolving sodium dichloroisocyanurate supplied in powder form. The deodorant spraying system according to claim 2, further comprising a stock solution tank connected to the dilution tank and storing a high concentration of hypochlorous acid water before dilution.
It is equipped with a screw feeder that supplies sodium dichloroisocyanurate supplied in powder form to the stock solution tank.
A deodorant spraying system configured to adjust the hypochlorous acid concentration in the dilution tank by controlling the rotation amount of the screw feeder. The deodorant spraying system according to any one of claims 1 to 3.
A deodorant spray system in which the deodorant spray nozzle sprays diluted hypochlorous acid water in the shape of a hollow cone. The deodorant spraying system according to any one of claims 1 to 4.
A deodorant spraying system that makes the hypochlorous acid concentration in the dilution tank 100 ppm or more. The deodorant spraying system according to any one of claims 1 to 5.
A deodorant spraying system in which the concentration of hypochlorous acid in the dilution tank is 30 ppm to 200 ppm. The deodorant spraying system according to any one of claims 1 to 6.
A deodorant spray system in which the deodorant spray nozzle controls to spray diluted hypochlorous acid water with an average particle size of 30 μm to 50 μm. The deodorant spraying system according to any one of claims 1 to 7.
A deodorant spraying system in which the timer controls to spray diluted hypochlorous acid water from the nozzle every 30 minutes for 3 minutes. The deodorant spraying system according to any one of claims 1 to 8, further comprising a fragrance tank for storing fragrances.
A deodorant spraying system that is connected to the fragrance tank and includes a fragrance spraying nozzle that sprays fragrances. The deodorant spraying system according to claim 9.
A deodorant spray system in which the fragrance spray nozzle is configured to overlap the spray direction of the deodorant spray nozzle. The deodorant spraying system according to claim 9 or 10.
A deodorant spraying system in which the fragrance is limonene. The deodorant spraying system according to any one of claims 1 to 11.
A deodorant spray system in which the deodorant spray nozzle is installed in a waste pit of a waste treatment plant. The deodorant spraying system according to any one of claims 1 to 11.
A deodorant spray system in which the deodorant spray nozzle is installed in a residue treatment plant of a food factory. A deodorant liquid supply device for supplying deodorant liquid to a malodor source.
A hopper that stores powdered sodium dichloroisocyanurate,
A stock solution tank for storing hypochlorous acid water in which the sodium dichloroisocyanurate is dissolved in the hopper, and a stock solution tank.
A dilution tank that dilutes the hypochlorous acid water supplied from the stock solution tank to a hypochlorous acid concentration of 30 ppm or more.
A pump connected to the dilution tank and connected to a deodorant spray nozzle that sprays diluted hypochlorous acid water to the deodorant source.
A deodorant liquid supply device including a timer that controls an operation of spraying diluted hypochlorous acid water from the deodorant spray nozzle at a predetermined timing. It is a deodorant spraying method that sprays a deodorant liquid to a malodor source.
The process of dissolving powdered sodium dichloroisocyanurate to generate hypochlorite water and storing it in a stock solution tank.
A step of diluting the hypochlorous acid water in the stock solution tank to adjust the hypochlorous acid concentration to 30 ppm to 200 ppm, and
The step of spraying the diluted diluted hypochlorous acid water from the deodorant spray nozzle to the deodorant source, and
Deodorant spraying method including. The deodorant spraying method according to claim 15.
A deodorant spraying method in which the step of spraying diluted hypochlorous acid water from the deodorant spray nozzle is repeated at a predetermined cycle.

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