JP2018167225A - Mounting structure of fine bubble generator - Google Patents

Abstract

To provide a mounting structure of a fine bubble generator capable of stably driving the fine bubble generator.SOLUTION: A mounting structure of a fine bubble generator is capable of cleaning a cleaning object device by mounting the fine bubble generator that mixes water with air to generate fine bubbles, where the fine bubble generator comprises a mixture part that mixes water with air to generate fine bubbles, and an air intake pipeline, which is a pipeline connected with the mixture part, to take in air for supply into the mixture part, and where the air intake pipeline is provided with a check valve capable of ventilation only in a direction to the mixture part and branched from a position below the check valve in the air intake pipeline to comprise an exhaust pipeline connected with a drain passage provided in the cleaning object device.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an attachment structure for attaching a fine bubble generating device to a device to be cleaned.

  Conventionally, an attachment structure for attaching a microbubble generator to an apparatus to be cleaned has been disclosed (see, for example, Patent Document 1).

  The structure of patent document 1 attaches a fine bubble generator to the bathtub which is a to-be-cleaned apparatus, and wash | cleans the wall surface of a bathtub with a fine bubble.

JP2013-132487A

  In the mounting structure of the fine bubble generator as in Patent Document 1, a large number of pipes such as pipes for flowing water and air, which are the generation sources of the fine bubbles, are provided. When the microbubble generator is continuously operated, these pipes may be clogged due to accumulation of scale or the like. In such a case, if the piping is broken, the fine bubble generator may not be able to stably generate fine bubbles. It can be said that there is still room for improvement regarding the stable generation of microbubbles in the microbubble generator, that is, the stable operation of the microbubble generator, including the configuration of Patent Document 1.

  Accordingly, an object of the present invention is to solve the above-described problem and to provide an attachment structure for a fine bubble generator capable of stably operating the fine bubble generator.

  In order to achieve the above object, the fine bubble generating device mounting structure of the present invention has a fine bubble generating device that mixes water and air to generate fine bubbles attached to the device to be cleaned. The fine bubble generating device has a structure for attaching the fine bubble generating device, wherein the fine bubble generating device includes a mixing unit that mixes water and air to generate fine bubbles, and a pipe connected to the mixing unit. An air intake pipe that takes in air to be supplied to the mixing section, and the air intake pipe is provided with a check valve that allows ventilation only in the direction toward the mixing section. A discharge pipe branched from a position downstream of the check valve in the air intake pipe and connected to a drainage path provided in the apparatus to be cleaned is provided.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment structure of the fine bubble generator which can drive a fine bubble generator stably can be provided.

Schematic of the mounting structure of the fine bubble generator of the embodiment Schematic for explaining the generation principle of fine bubbles Schematic of enlarged mounting structure

  Embodiments according to the present invention will be described below in detail with reference to the drawings.

(Embodiment)
FIG. 1 is a diagram showing a schematic configuration of a fine bubble generating device and a mounting structure for mounting the fine bubble generating device to the apparatus to be cleaned in the embodiment.

<Overall configuration>
As shown in FIG. 1, an apparatus to be cleaned 4 to be cleaned by a microbubble generator 2 is shown. The fine bubble generating device 2 is a device that generates fine bubbles for cleaning the device to be cleaned 4.

  The fine bubbles are bubbles having a diameter of 100 μm or less. The fine bubbles include microbubbles (diameter is, for example, 1 μm or more and 100 μm or less) and nanobubbles (diameter is, for example, less than 1 μm). Fine bubbles have properties different from normal bubbles, such as a long residence time in water, a large contact area, and easy chemical reaction. The water containing fine bubbles generated by the fine bubble generating device 2 exhibits higher cleaning power than water containing normal bubbles.

  The apparatus 4 to be cleaned is, for example, a dishwasher for cleaning tableware in the cabinet. The apparatus to be cleaned 4 in the present embodiment includes a processing space 10 and an attachment space 12. The processing space 10 and the mounting space 12 are adjacent to each other and are partitioned by a partition wall 13.

  The treatment space 10 is a box-like space that is cleaned with water containing fine bubbles generated by the fine bubble generator 2. When the to-be-cleaned apparatus 4 is a dishwasher, the process space 10 is the inside for wash | cleaning tableware. The processing space 10 constitutes a wet area.

  The attachment space 12 is a box-like space for attaching the fine bubble generating device 2. When the apparatus 4 to be cleaned is a dishwasher, the attachment space 12 is a space provided outside the cabinet. The mounting space 12 constitutes a dry area. The attachment space 12 is provided with an attachment structure (pipe or the like) for attaching the fine bubble generating device 2.

  The fine bubble generating device 2 in the present embodiment includes a mixing unit 14 and an air intake pipe 16.

  The mixing unit 14 is a member for generating water containing fine bubbles by mixing water and air. The mixing unit 14 of the present embodiment uses a case (holding part) that holds a flow path for mixing water and air, but may be a tank or the like. A specific principle for generating fine bubbles will be described later.

  The air intake pipe 16 is a pipe that takes in air to be supplied to the mixing unit 14. A space communicating with the mixing unit 14 is formed inside the air intake pipe 16. An air supply pipe 18 is connected to the air intake pipe 16 to supply air. The air supply pipe 18 has an air suction port 18 a at one end thereof, and the suction port 18 a of the present embodiment is disposed in the mounting space 12.

  A discharge pipe 23 is further connected to the air intake pipe 16. As will be described later, the discharge pipe 23 is a pipe for discharging the water flowing back from the mixing unit 14 to the air intake pipe 16 to the outside of the air intake pipe 16. The detailed configuration of the discharge pipe 23 and its periphery will be described later.

  A water supply pipe 20 and a cleaning agent supply pipe 22 are further connected to the mixing unit 14.

  The water supply pipe 20 is a pipe for supplying water to the mixing unit 14. The water supply pipe 20 in the present embodiment is connected to the faucet 24. Although illustration is omitted, water may be forcibly supplied using a pump or the like.

  The cleaning agent supply pipe 22 is a pipe for supplying the cleaning agent to the mixing unit 14 and is connected to the cleaning agent tank 26. The cleaning agent tank 26 is a tank that stores the cleaning agent. When it is assumed that oil or protein is dissolved, for example, a neutral detergent or an alkaline detergent is used as the cleaning agent. The cleaning agent may be appropriately selected according to the use of the apparatus 4 to be cleaned.

  By mixing water, air, and a cleaning agent in the mixing unit 14, cleaning water containing fine bubbles can be generated.

  A washing water supply pipe 28 is further connected to the mixing unit 14. The cleaning water supply pipe 28 is a pipe for supplying cleaning water containing fine bubbles generated in the mixing unit 14 to the processing space 10 described above. An injection unit 30 is provided at the tip of the cleaning water supply pipe 28 (for example, an injection nozzle). Washing water containing fine bubbles is jetted onto the wall surface of the processing space 10 by the jetting unit 30. The ejection unit 30 is provided on the upper surface 32 of the processing space 10.

  A drainage part 36 is provided on the bottom surface 34 of the processing space 10. The drainage part 36 is a member for discharging the liquid in the processing space 10 to the outside of the processing space 10 (for example, a drain port). A drainage path 38 is connected to the drainage part 36. The drainage path 38 is a path for discharging the drainage from the drainage part 36 to the outside (for example, piping).

  A connection mechanism 40 is provided in the middle of the drainage path 38. The connection mechanism 40 is a mechanism for connecting the discharge pipe 23 described above to the drainage path 38 (for example, a joint).

  By the connection mechanism 40, the discharge pipe 23 is connected so as to bypass between the air intake pipe 16 and the drainage path 38.

  In a state where the fine bubble generating device 2 having such a configuration is attached to the device to be cleaned 4, a cleaning process for cleaning the device to be cleaned 4 is selected by the user (for example, an operation panel of the device to be cleaned 4 is Pressed). When the cleaning process is selected, the operation of the fine bubble generating device 2 is started by a control unit (not shown), and the fine bubble generating device 2 generates fine bubbles.

  The principle by which the microbubble generator 2 generates microbubbles will be described with reference to FIG. FIG. 2 is a partial cross-sectional view of the fine bubble generator 2.

  As shown in FIG. 2, a flow path 42 is formed inside the mixing unit 14. The channel 42 is a channel for mixing water, air, and a cleaning agent supplied to the mixing unit 14. A water supply pipe 20, an air intake pipe 16, and a cleaning agent supply pipe 22 are connected to the flow path 42 in order from the upstream side.

  The flow path 42 has a first space 42A, a second space 42B, and a third space 42C in order from the upstream side.

  As shown in FIG. 2, the first space 42A has a channel area that decreases from the upstream side toward the downstream side. The second space 42B has substantially the same flow path area from the upstream side toward the downstream side. In the third space 42C, the flow path area increases from the upstream side toward the downstream side. With such a configuration, the second space 42 </ b> B functions as a contracted portion in which the flow channel area is reduced in the flow channel 42.

  The air intake pipe 16 and the cleaning agent supply pipe 22 described above are connected to the second space 42B, and air and the cleaning agent are mixed with water in the second space 42B.

  In such a configuration, the water flowing from the water supply pipe 20 flows through the first space 42A and passes through the second space 42B. Since the second space 42B is a contracted portion, the flow rate of water increases. Since the pressure decreases as the flow velocity increases, air is sucked from the air intake pipe 16 connected to the second space 42B. Thus, the fine bubble generator 2 constitutes a self-priming nozzle mechanism.

  Thereafter, the cleaning agent is mixed from the cleaning agent supply pipe 22 into the water in which the air is mixed. The cleaning water in which the air and the cleaning agent are mixed flows into the third space 42C.

  By opening to the atmospheric pressure in the third space 42C, the air becomes fine bubbles. Thereby, washing water containing fine bubbles is generated. As described above, the method for generating fine bubbles can be realized by reducing the pressure of the cleaning water containing air bubbles, but is not limited to such a method.

  Thereafter, the cleaning water containing fine bubbles passes through the cleaning water supply pipe 28 and is jetted from the above-described jetting unit 30 to the processing space 10. Thereby, the wall surface of the processing space 10 of the apparatus 4 to be cleaned can be cleaned with cleaning water containing fine bubbles. As described above, water containing fine bubbles can exhibit higher cleaning power than water containing normal bubbles.

  In such a configuration, impurities such as a cleaning agent and scale adhere to the inner wall surface of the flow path 42 of the mixing unit 14 or the cleaning water supply pipe 28 downstream thereof. If the operation of the fine bubble generating device 2 is continued, the amount of adhesion of these impurities may increase and the flow path may be clogged. When such clogging occurs, the water in the mixing unit 14 flows upstream to generate a backflow. Among the components connected to the mixing unit 14, the air intake pipe 16 includes the water supply pipe 20 and the cleaning agent supply. Unlike other pipes such as the pipe 22, the water is easy to flow back because it is a dry zone.

  In preparation for such a reverse flow of water, the above-described discharge pipe 23 is connected to the air intake pipe 16. The discharge pipe 23 and its peripheral members will be described with reference to FIG. FIG. 3 is a schematic view showing the discharge pipe 23 and its peripheral members.

  As shown in FIG. 3, the air intake pipe 16 is provided with a check valve 44. The check valve 44 is a valve that allows ventilation only in the direction toward the mixing unit 14 (arrow A), that is, in the direction of air introduction into the mixing unit 14. The check valve 44 prevents water that has flowed back from the mixing unit 14 to the air intake pipe 16 from further flowing back to the air supply pipe 18. The check valve 44 is provided at the upstream end portion 16 a of the air intake pipe 16, that is, at the connection portion with the air supply pipe 18.

  Further, as shown in FIG. 3, a discharge pipe 23 is provided branched from the middle of the air intake pipe 16. The water that has flowed back from the mixing section 14 is discharged to the outside of the air intake pipe 16 by the discharge pipe 23. By providing such a discharge pipe 23, it is possible to prevent water from staying in the air intake pipe 16. As a result, it is possible to prevent the air intake pipe 16 from being clogged by the water staying in the air intake pipe 16 and the pressure from rising and damaging the air intake pipe 16. For this reason, the operation of the fine bubble generator 2 can be more stably operated.

  Further, since the check valve 44 provided in the air intake pipe 16 is a check valve that allows air to flow, the strength of the valve is set lower than that of the check valve that allows liquid to flow in. Has been. Therefore, when the pressure of the water that has flowed back to the air intake pipe 16 is high, the check valve 44 may open and further flow back to the air supply pipe 18. Since the suction port 18a that is the end of the air supply pipe 18 in the present embodiment is disposed in the mounting space 12 that is a dry area, it is preferable to prevent water leakage from the suction port 18a. In contrast, as described above, the discharge pipe 23 branched from the middle of the air intake pipe 16 is provided, and the water flowing back from the mixing unit 14 can be discharged to the outside, so that the air supply pipe 18 Water leakage from the suction port 18a can be effectively prevented.

  In addition, the discharge pipe 23 is connected to the drainage path 38 of the apparatus to be cleaned 4 as described above. In this way, by connecting the discharge pipe 23 to the drainage path 38, the water flowing back from the mixing unit 14 can be drained as it is, and efficient drainage becomes possible.

  Further, a check valve 46 is provided in the discharge pipe 23. The check valve 46 is a valve that allows water to flow only in the direction (arrow B) from the air intake pipe 16 toward the drainage path 38. By providing the check valve 46, it is possible to prevent drainage or the like from flowing back from the discharge pipe 23 to the air intake pipe 16.

  The check valve 46 is provided at the upstream end 23 a of the discharge pipe 23, that is, at the connection portion with the air intake pipe 16. According to such a configuration, unlike the case where a check valve is provided in the middle of the discharge pipe 23, the water flowing back from the mixing unit 14 to the air intake pipe 16 does not stay in the discharge pipe 23, and the drainage path 38 can be drained. Thereby, damage to the piping 23 for discharge can be suppressed and a lifetime can be lengthened.

  As described above, the attachment structure of the fine bubble generating device 2 according to the present embodiment is configured such that the fine bubble generating device 2 that generates fine bubbles by mixing water and air is attached to the cleaned device 4. It is the attachment structure of the fine bubble generator 2 which can wash | clean with a fine bubble. The fine bubble generating device 2 includes a mixing unit 14 and an air intake pipe 16. The mixing unit 14 mixes water and air to generate fine bubbles. The air intake pipe 16 is a pipe connected to the mixing unit 14 and takes in air to be supplied to the mixing unit 14. The air intake pipe 16 is provided with a check valve 44 that allows ventilation only in the direction toward the mixing unit 14. In such a configuration, the mounting structure branches the discharge pipe 23 branched from the position downstream of the check valve 44 in the air intake pipe 16 and connected to the drainage path 38 provided in the apparatus 4 to be cleaned. Prepare.

  As described above, when impurities such as scale accumulate in the mixing unit 14 or downstream thereof, water may flow backward from the mixing unit 14 to the air intake pipe 16. Since the air intake pipe 16 has the check valve 44, the water that has flowed back accumulates in the air intake pipe 16, but this water can be released by providing the discharge pipe 23. According to such a configuration, it is possible to prevent the air intake pipe 16 from being damaged due to water staying in the air intake pipe 16 and clogging the air path of the air intake pipe 16, thereby damaging the air intake pipe 16. it can. Thereby, the fine bubble generator 2 can be operated more stably. Furthermore, since the discharge pipe 23 is connected to the drainage path 38 of the apparatus 4 to be cleaned, the backflowed water can be drained as it is, and efficient drainage can be performed.

  Although the present invention has been described with reference to the above-described embodiments, the present invention is not limited to the above-described embodiments. For example, although the case where the cleaning agent supply pipe 22 and the cleaning agent tank 26 are provided has been described in the above embodiment, the present invention is not limited to such a case, and the case where the cleaning agent supply pipe 22 and the cleaning agent tank 26 are not provided may be used. . That is, the mixing unit 14 of the microbubble generator 2 may generate microbubbles by mixing only air with water. Note that the cleaning effect of water containing fine bubbles can be improved by providing the cleaning agent supply pipe 22 and the cleaning agent tank 26 and adding the cleaning agent.

  Moreover, although the case where the check valve 46 is provided not only in the air intake pipe 16 but also in the discharge pipe 23 has been described in the above embodiment, the present invention is not limited to such a case, and the check valve is provided in the discharge pipe 23. 46 may not be provided. In addition, the direction which provided the check valve 46 in the piping 23 for discharge can prevent the inflow of the impurity to the air intake piping 16, and can suppress deterioration of the air intake piping 16. FIG.

  Further, in the above embodiment, the case where the check valve 44 and the check valve 46 are provided at the respective end portions of the air intake pipe 16 and the discharge pipe 23 has been described. You may provide in the position in the middle other than a part. In addition, it is easier to install the check valve 44 and the check valve 46 at the ends of the air intake pipe 16 and the discharge pipe 23, and the air intake pipe 16 and the discharge pipe 23 are provided. The deterioration in 23 can be further suppressed.

  Moreover, although the said embodiment demonstrated the case where only one discharge piping 23 was provided in the air intake piping 16, it is not restricted to such a case, You may provide several discharge piping.

  In addition, it can be made to show the effect which each has by combining suitably any embodiment among the said various embodiment and modifications.

  Although the present disclosure has been fully described in connection with preferred embodiments with reference to the accompanying drawings, various variations and modifications will be apparent to those skilled in the art. Such changes and modifications are to be understood as included within the scope of the present disclosure as set forth in the appended claims. In addition, combinations of elements and changes in the order in each embodiment can be realized without departing from the scope and spirit of the present disclosure.

  The present invention is applicable as long as it is an attachment structure for attaching the fine bubble generating device to the apparatus to be cleaned.

2 Fine bubble generating device 4 Device to be cleaned 10 Processing space 12 Mounting space 13 Partition wall 14 Mixing section 16 Air intake pipe 16a Upstream end 18 Air supply pipe 18a Suction port 20 Water supply pipe 22 Cleaning agent supply pipe 23 Discharge pipe 23a Upstream end portion 24 Faucet 26 Cleaning agent tank 28 Washing water supply pipe 30 Injection portion 32 Upper surface 34 Bottom surface 36 Drainage portion 38 Drainage path 40 Connection mechanism 42 Flow path 42A First space 42B Second space 42C Third space 44 Check valve 46 Check valve

Claims (4)

A fine bubble generating apparatus that mixes water and air to generate fine bubbles is attached to the apparatus to be cleaned, and the apparatus for cleaning the fine bubbles that enables the apparatus to be cleaned to be cleaned with the fine bubbles,
The fine bubble generating device includes a mixing unit that mixes water and air to generate fine bubbles, and a pipe that is connected to the mixing unit and that takes in air to be supplied to the mixing unit. And
The air intake pipe is provided with a check valve that allows ventilation only in the direction toward the mixing unit,
A fine bubble generating device mounting structure comprising a discharge pipe branched from a position downstream of the check valve in the air intake pipe and connected to a drain passage provided in the apparatus to be cleaned.   The fine bubble generating device mounting structure according to claim 1, wherein a check valve that prevents a flow in a direction from the drainage path toward the air intake pipe is provided in the discharge pipe.   The check structure in the exhaust pipe is an attachment structure for a microbubble generator according to claim 2, wherein the check valve is attached to a connection portion of the exhaust pipe with the air intake pipe.   The attachment structure of the fine bubble generator of any one of Claim 1 to 3 which further provided the cleaning agent tank for supplying a cleaning agent to the said mixing part of the said fine bubble generator.

Images