Water purification apparatus having microbubble water generation function

Abstract

The present invention relates to an apparatus installed to float on the water of a water purification target area to generate and discharge microbubble water, the apparatus comprising: a housing; at least one floating body installed inside the housing to provide a predetermined buoyancy; a plasma generating unit installed on the inner upper part of the housing to generate active gas in the form of plasma by performing plasma discharge treatment by using air supplied from an air layer above the water surface where the housing is installed; a microbubble water generating unit installed on the inner lower part of the housing to receive the active gas in the form of plasma generated through the plasma generating unit, mix same with water flowing in from the water surface where the housing is installed, and generate microbubble water to then be discharged into the water surface; and a control unit that controls the operation states of the plasma generation unit and the microbubble water generation unit.

Description

Water purification device with microbubble generation function

[0001] The present invention relates to a water purification device having a microbubble water generation function.

[0002] In closed water areas such as dams, coastal waters, rivers, and lakes, organic pollutants that exceed the natural self-purification capacity continue to flow in, so pollutants are continuously deposited in the bottom layers of closed water areas, worsening the anaerobic hypoxic condition.

[0003] This threatens the survival of oxygen-breathing aquatic life, and the eutrophication occurring in the bottom layer is deteriorating the aquatic ecosystem, with red and green algae blooms occurring. Various methods are being attempted to improve the bottom environment and water quality, such as supplying high-concentration oxygen through aeration pipes or collecting pollutants from the bottom layer. However, given the limited time and resources available in the vast water area, effective solutions are limited.

[0004] Recently, attention has been paid to microbubble devices as a natural healing, eco-friendly and economical means to overcome the limitations described above, and research and development tests are continuously being conducted on the resolution of oxygen-poor water using microbubble water and improvement of bottom water quality.

[0005] Specifically, the microbubbles provided by the microbubble device are microbubbles with a diameter of 50㎛ or less, and the rising speed of the bubbles is very slow at 3mm per minute compared to other aeration methods, which effectively supplies oxygen to the bottom layer of a closed water area, improving the hypoxic condition and restoring the underwater ecosystem. Furthermore, ultra-fine bubbles with a diameter of 1㎛ or less are also being used.

[0006] In this regard, a prior art document on a prior art prepared to provide an effect of improving and enhancing the self-purification capacity of a river through an advanced oxidation process using ultrafine ozone bubbles and ultrafine oxygen bubbles includes "River water quality improvement system using an advanced oxidation process using ultrafine bubbles" (hereinafter referred to as "prior art") in Korean Patent Publication No. KR 10-1125815.

[0007] However, in the case of existing water purification devices using microbubbles, including conventional technologies, there was a problem in that they simply created microbubbles using general air, and the rate of generation of ultrafine bubbles was minimal, so they provided insufficient results for water purification.

[0008] In addition, in the case of existing water purification device technologies using microbubble water, including conventional technologies, there was a problem in that the heat generated by the operation of various devices and modules driven to generate microbubbles was not properly managed, which affected the operating efficiency of the devices and modules or affected the underwater environment in which they were installed.

[0009] The present invention was created to solve the above problems, and the purpose of the present invention is to provide a technology that can further improve the characteristics and stability of the generated microbubbles related to water purification, increase the rate of ultrafine bubble generation, and thus fundamentally enhance the level of water purification function, and further significantly improve the operational efficiency and the degree of influence on the installation environment due to heat of various components related to the generation of microbubbles.

[0010] In order to achieve the above object, the water purification device having a microbubble water generation function of the present invention is a device that is installed floating on the water surface of a water purification target area and generates and discharges microbubble water, comprising: a housing; at least one float installed inside the housing and providing a predetermined buoyancy; a plasma generation unit installed on the upper part of the inside of the housing and generating an active gas in the form of plasma by performing a plasma discharge process using air supplied from an air layer above the water surface where the housing is installed; a microbubble water generation unit installed on the lower part of the inside of the housing and receiving the active gas in the form of plasma generated by the plasma generation unit, mixing the plasma with water flowing in from the water surface where the housing is installed, and generating microbubble water and discharging the microbubble water into the water surface; and a control unit that adjusts the operating states of the plasma generation unit and the microbubble water generation unit.

[0011] Here, the plasma generation unit includes: a first body part having a first installation space therein; a rotating fan part installed on one side of the first body part and rotating to allow air to be introduced from an air layer above the water surface where the housing is installed into the first installation space; a cyclone part installed in the first installation space to suck in air introduced into the first installation space through the rotating fan part and to separate and remove moisture in the air through centrifugal force caused by a vortex; a blower part installed in the first installation space and connected to the upper portion of the cyclone part through a gas suction pipe, and sucking in gas from which moisture has been removed through the cyclone part through the gas suction pipe and then pressurizing and discharging the gas through a gas supply pipe to which one end is connected; and a plasma treatment part installed in the first installation space and to which the other end of the gas supply pipe is connected, performing plasma discharge treatment on gas supplied under pressure from the blower part to generate an active gas in the form of plasma and discharging the same through a plasma supply pipe to which one end is connected.

[0012] In addition, the cyclone section includes an air intake section having an intake port for air introduced into the first installation space; a first cyclone body section formed in a cylindrical shape with an internal space formed therein and formed integrally with the air intake section so that air introduced through the intake port forms a swirling flow and is introduced; and a second cyclone body section formed in a hollow cone shape with an internal space formed therein and having a diameter that narrows from the lower end of the first cyclone body section, and wherein moisture is separated by centrifugal force due to the swirling flow generated in the internal spaces of the first cyclone body section and the second cyclone body section, and gas that moves upward is introduced toward one end of the gas intake pipe that is connected to the upper central portion of the first cyclone body section so as to be in communication with the internal space of the first cyclone body section.

[0013] In addition, the microbubble water generating unit comprises: a second body part having a predetermined second installation space therein, the other end of the plasma supply pipe being connected to the lower end of one end thereof so that plasma-type active gas is supplied into the second installation space; a water inlet part having a mesh-type net structure and installed on the lower surface of one end of the second body part to provide an open space through which water can flow into the second installation space from a water surface on which the housing is installed; a microbubble water generating pump part installed in the second installation space, which sucks in plasma-type active gas supplied into the second installation space from the other end of the plasma supply pipe and water introduced through the water inlet part and mixes them through the rotational motion of an impeller provided therein, thereby generating microbubble water; And a microbubble discharge unit provided in the form of a pipe having a microbubble discharge path inside, one end of which is connected to the microbubble water generating pump unit and the other end is exposed to the outside of the second body unit so that the microbubble water moving through the microbubble discharge path can be discharged into the water.

[0014] In addition, the pump unit for generating microbubble water includes a pump suction portion which is installed on the other end side of the second body portion and has at least one pump suction port; and a cylindrical pump module having the impeller installed therein to be rotatable, the pump module being connected to the pump suction portion so as to have a structure communicating with the at least one pump suction port, and the microbubble water generating pump unit is arranged from one end side to the other end side of the second body portion; and at least one pump suction port provided in the pump suction portion is formed such that the center of the open space in the vertical direction on the other end side of the second body portion is located higher than the other end connection portion of the plasma supply pipe and the water inlet.

[0015] And the above microbubble generation unit further includes at least one gas dividing section which is provided with a porous mesh structure having a plurality of micropores and is installed over the entire or part of the vertical cross-section at at least one position between the water inlet and the pump suction section in the second body section.

[0016] According to the present invention, the following effects are achieved.

[0017] First, by using gas treated in the form of plasma to generate microbubble water including microbubbles and ultrafine bubbles with improved characteristics and stability related to water purification, the level of water purification function can be provided at a very high level and efficiency by discharging the generated microbubble water into the underwater installation environment.

[0018] Second, water purification function can be provided consistently and effectively across the desired area regardless of the size and scope of the installation environment.

[0019] Third, as the microbubble generation process is performed, the heat management of various components that generate heat is effectively performed, so that the problems of reduced operating efficiency due to heat and the influence of the external environment can be minimized or completely resolved.

[0020] Figure 1 is a perspective view showing the structure of a water purification device according to the present invention.

[0021] Figure 2 is a perspective view showing the internal structure of the housing of a water purification device according to the present invention.

[0022] Figure 3 is a perspective view showing the structure of a plasma generation unit in a water purification device according to the present invention.

[0023] Figure 4 is a perspective view showing the structure of a microbubble water generating unit in a water purification device according to the present invention.

[0024] Figure 5 is a front view showing the structure of a microbubble water generating unit in a water purification device according to the present invention.

[0025] Figure 6 is a plan view showing the structure of a microbubble water generating unit in a water purification device according to the present invention.

[0026] A preferred embodiment of the present invention will be described in more detail with reference to the attached drawings, but already well-known technical parts will be omitted or compressed for the sake of brevity.

[0027] <Description of a water purification device equipped with a microbubble generation function>

[0028] Referring to FIG. 1, the water purification device (100) having a microbubble water generation function of the present invention is a device that is installed floating in water in a water purification target area to generate and discharge microbubble water and thereby provides a high level of water purification function, and for this purpose, includes a housing (110), a float (120), a plasma generation unit (130), a microbubble water generation unit (140), a control unit (150), an installation frame (160), a first information display module (170), and a second information display module (180).

[0029] The housing (110) has a configuration that has the overall appearance of the device (100) as shown in FIG. 1, and a predetermined installation space is provided inside, and an installation frame (160) is provided in the installation space as shown in FIG. 2 to fix the installation positions of various components to be described later.

[0030] Here, when the water purification device (100) equipped with the microbubble water generating function of the present invention is installed floating on the water, the housing (110) has an upper side exposed above the water surface and a lower side submerged below the water surface. In connection with this, a separate opening (110H) is provided on the upper surface for the introduction of external air into the internal installation space.

[0031] The floating body (120) is installed and connected in a balanced manner on one side of the installation frame (160) provided inside the housing (110) to provide a predetermined buoyancy so that the water purification device (100) can continuously remain floating in the water.

[0032] The plasma generation unit (130) is installed on the upper part of the installation frame (160) provided inside the housing (110) as shown in FIG. 2, and performs plasma discharge treatment using air supplied after being introduced through an opening (110H) from the upper air layer of the water surface where the housing (110) is installed, thereby generating an active gas in the form of plasma.

[0033] To this end, the plasma generation unit (130) includes a first body part (131), a rotating fan part (132), a cyclone part (133), a blower part (134), a plasma treatment part (135), a plasma power source part (136), and an air inlet part (137), as shown in FIG. 3.

[0034] First, the first body part (131) corresponds to a body having a predetermined first installation space (131T) inside.

[0035] In this way, a rotating fan part (132) is installed on one end (rear end side as shown in FIG. 3) of a cylindrical first body part (131) having a predetermined first installation space (131T) inside, and an air inlet part (137) is provided on the opposite end (front end side as shown in FIG. 3).

[0036] Here, the rotating fan (Fan) part (132) is installed on one side (rear view based on Figure 3) of the first body part (131), and rotates to allow air to flow from the upper air layer on the surface where the housing (110) is installed into the first installation space (131T).

[0037] In this regard, the air inlet (137) is provided in a mesh-type net structure and installed on the other side (front as shown in FIG. 3) of the first body part (131) to assist in the natural inflow of air into the first installation space (131T), and further, depending on the implementation, it may enable the discharge of heat generated by the operation of various components (rotating fan part (132), cyclone part (133), blower part (134), plasma treatment part (135), plasma power source part (136)) installed in the first installation space (131T).

[0038] Next, the cyclone section (133) is installed in the first installation space (131T) and sucks in air introduced into the first installation space (131T) through the rotating fan section (132) and the air inlet section (137) to separate and remove moisture in the air through centrifugal force caused by the vortex.

[0039] Specifically, the cyclone section (133) includes an air intake section (133a), a first cyclone body section (133b), and a second cyclone body section (133c), as shown in FIG. 3, to perform the function of separating and removing moisture in the air through centrifugal force caused by a vortex.

[0040] Here, the air intake section (133a) is a pipe structure having an intake port for air introduced into the first installation space (131T) inside.

[0041] Next, the first cyclone body part (133b) is formed in a cylindrical shape with an internal space, and is connected to the air intake part (133a) to form an integral body so that air sucked through the intake port can be introduced while forming a swirling flow.

[0042] Additionally, one end of a gas suction pipe (133P) is connected to the upper central portion of the first cyclone body part (133b) so as to be in communication with the internal space of the first cyclone body part (133b).

[0043] Lastly, the second cyclone body part (133c) is formed as a hollow cone with an internal space formed by narrowing the diameter from the bottom of the first cyclone body part (133b).

[0044] The gas that is separated from moisture and moves upward through centrifugal force caused by the swirling flow generated in the internal space of the first cyclone body part (133b) and the second cyclone body part (133c) is sucked into one end of the gas suction pipe (133P), and the moisture separated from the air moves to the lower side of the second cyclone body part (133c) and is then discharged through a separate pipe.

[0045] Through this, rather than simply using external air for plasma discharge treatment, the plasma discharge treatment is performed using only gas from which moisture has been sufficiently removed, thereby achieving a more stable state in the generation of microbubbles using the generated active gas.

[0046] In addition, the blower section (134) is installed in the first installation space (131T) and is connected to the upper part of the cyclone section (133) through a gas suction pipe (133P). The gas from which moisture has been removed through the cyclone section (133) is sucked in through the gas suction pipe (133P) and then pressurized and discharged through a gas supply pipe (134P) to which one end is connected.

[0047] In addition, the plasma treatment unit (135) is installed in the first installation space (131T), and the other end of the gas supply pipe (134P) is connected, and a plasma discharge treatment is performed on the gas (in a moisture-removed state) supplied under pressure from the blower unit (1340) to generate an active gas in the form of plasma, and the plasma is discharged through the plasma supply pipe (135P) to which one end is connected.

[0048] Accordingly, the plasma-type active gas generated through the plasma treatment unit (135) and then discharged through the plasma supply pipe (135P) has a form that includes at least one of active oxygen species or active nitrogen species.

[0049] Specifically, in the plasma treatment unit (135), energy (heat, current, or electromagnetic radiation energy) is applied to the gas from which moisture has been removed, which is supplied to the other end of the gas supply pipe (134P), to generate gas in the form of plasma, such as chemical species or ions.

[0050] In addition, the plasma power supply unit (136) can generate a high voltage by supplying power and provide the electric energy required for plasma discharge to the connected plasma processing unit (135).

[0051] The microbubble water generating unit (140) is installed at the lower part of the inside of the housing, receives plasma-type active gas generated through the plasma generating unit (130), mixes it with water flowing in from the water surface where the housing (110) is installed, and generates microbubble water, which is then discharged into the water at the installation location.

[0052] To this end, the microbubble generation unit (140) includes a second body part (141), a water inlet part (142), a microbubble generation pump part (143), a microbubble discharge part (144), and a gas splitting part (145) as shown in FIGS. 4 to 6.

[0053] First, the second body part (141) corresponds to a body having a predetermined second installation space (141T) inside.

[0054] The other end of the plasma supply pipe (135P) is connected to the lower part of one end (left side based on FIGS. 5 and 6) of the second body part (141) so that plasma-type active gas is supplied into the second installation space (141T).

[0055] Next, the water inlet (142) is provided in the form of a mesh structure and is installed on the bottom surface of one end (left side based on FIGS. 5 and 6) of the second body part (141) to provide an open space through which water can flow into the second installation space (141T) from the water surface where the housing (110) is installed.

[0056] Accordingly, as shown in FIGS. 5 and 6, water is introduced from the outside and an active gas in the form of plasma is supplied from the lower part of one end (left side based on FIGS. 5 and 6) in the second installation space (141T) within the second body part (141).

[0057] In addition, the pump unit (143) for generating microbubble water is installed in the second installation space (141T), and sucks in plasma-type active gas supplied from the other end of the plasma supply pipe (135P) into the second installation space (141T) and water introduced through the water introduction unit (142), and mixes them through the rotational movement of the impeller provided inside to generate microbubble water (a state including a significant portion of ultrafine bubble water).

[0058] Specifically, the pump unit (143) for generating microbubble water is installed on the other end side (right side based on FIGS. 5 and 6) of the second body unit (141) as shown in FIGS. 4 to 6, and includes a pump suction part (143a) having at least one pump suction port (143H) and a cylindrical pump module having an impeller installed therein so as to be rotatable, and a pump unit (143b) for generating microbubble water that is connected to the pump suction part (143a) so as to have a structure communicating with at least one pump suction port (143H), and is arranged from one end side (left side based on FIGS. 5 and 6) to the other end side (right side based on FIGS. 5 and 6) of the second body unit (141).

[0059] Here, one side of the pump section (143b) for generating microbubbles receives power from a control unit (150) to be described later to enable the impeller to rotate, and a separate pump power section (143c) for receiving a control signal for the rotation operation is also connected.

[0060] In addition, it is important that at least one pump suction port (143H) provided in the pump suction section (143a) is formed so that the center of the open space in the vertical direction on the other end side (right side based on FIGS. 5 and 6) of the second body part (141) is located higher than the other end connection part of the plasma supply pipe (135P) and the water inlet (142).

[0061] Accordingly, water and plasma-type active gas move upward (W) from the lower part of one end (left side based on FIGS. 5 and 6) of the second installation space (141T) where water is introduced from the outside and active gas in plasma form is supplied toward at least one pump suction port (143H) provided above the center of the other end (right side based on FIGS. 5 and 6) of the second installation space (141T) as shown in FIG. 5, and pass through the microbubble water generation pump part (143b) where actual operation is in progress.

[0062] Through this, the pump part (143b) for generating microbubble water is provided with a water cooling function through contact between the water and the flow (W) of plasma-type active gas that moves upward toward at least one pump suction port (143H), thereby automatically performing heat management, and consequently resolving negative issues regarding operating efficiency and the influence of temperature changes in the external environment.

[0063] Next, the microbubble discharge unit (144) is provided in the form of a pipe having a microbubble discharge path inside, and one end is connected to the microbubble generation pump unit (143), and the other end is exposed to the outside of the second body unit (141) so that the microbubble water moving through the microbubble discharge path can be discharged into the water.

[0064] Lastly, the gas splitter (145) is provided as a porous mesh structure having a large number of micropores and is installed over the entire or part of the vertical cross-section at least at one or more locations between the water inlet (142) and the pump suction portion (143a) in the second body portion (141) as shown in FIGS. 4 and 6.

[0065] Accordingly, as shown in FIG. 6, water and plasma-type active gas are moved from the lower part of one end (left side based on FIGS. 5 and 6) of the second installation space (141T) where water is introduced from the outside and active gas in plasma is supplied, to at least one pump suction port (143H) of the other end (right side based on FIGS. 5 and 6) of the second installation space (141T), and the plasma-type active gas passes through at least one gas dividing section (145) in the flow (W), thereby making the generation of microbubbles or ultrafine bubbles more active and proactive.

[0066] The control unit (150) controls the operating status of the plasma generation unit (130), the microbubble generation unit (140), the first information display module (170), and the second information display module (180).

[0067] According to the implementation, the control unit (150) may include a power control unit (not shown) including a battery and a power supply line that supply power for operation to the plasma generation unit (130), the microbubble generation unit (140), the first information display module (170), and the second information display module (180), and an operation control unit (not shown) for controlling the operation states of the plasma generation unit (130), the microbubble generation unit (140), the first information display module (170), and the second information display module (180).

[0068] Here, the operation control unit (not shown) controls the operation status of the rotating fan unit (132), cyclone unit (133), blower unit (134), plasma treatment unit (135), and plasma power supply unit (136) within the plasma generation unit (130), and controls the operation status of the pump unit (143b) for generating microbubbles within the microbubbles generation unit (140).

[0069] In addition, the operation control unit (not shown) can control the operation status of the first information display module (170) so that output can be made for visualization of various information related to the current provision status and details of the water quality purification function.

[0070] In addition, the operation control unit (not shown) can control the operation status of the second information display module (160) to inform an external user of whether the water purification function is operating normally or abnormally, or to output light, an alarm sound, or visual information to inform an external user of whether the function is operating or stopped.

[0071] The embodiments disclosed in the present invention are intended to illustrate, not limit, the technical concepts of the present invention. These embodiments do not limit the scope of the technical concepts of the present invention. The scope of protection should be interpreted according to the following claims, and all technical concepts within the scope equivalent thereto should be construed as being included within the scope of the present invention.

[0072] <Explanation of symbols>

[0073] 100: Water purification device

[0074] 110: Housing 120: Float

[0075] 130: Plasma generation unit

[0076] 131: First body part 132: Rotating fan part

[0077] 133: Cyclone section 134: Blower section

[0078] 135: Plasma processing unit 136: Plasma power supply unit

[0079] 137: Air inlet

[0080] 140: Microbubble generation unit

[0081] 141: Second body part 142: Water inlet

[0082] 143: Pump section for generating microbubble water

[0083] 144: Microbubble discharge unit 145: Gas splitter

[0084] 150: Control unit 160: Installation frame

[0085] 170: First information display module 180: Second information display module

Claims

1. In a device that is installed floating on the water surface of a water purification target area and generates and discharges microbubbles, housing; At least one float installed inside the housing to provide a predetermined buoyancy; A plasma generating unit installed on the inner upper part of the housing to generate an active gas in the form of plasma by performing plasma discharge processing using air supplied from the upper air layer of the surface where the housing is installed; A microbubble water generating unit installed on the lower inner side of the housing, which receives plasma-type active gas generated through the plasma generating unit and mixes it with water flowing in from the water surface where the housing is installed to generate microbubble water and discharges it into the water surface; and A control unit for controlling the operating status of the plasma generating unit and the microbubble generating unit; characterized in that it includes: A water purification device equipped with a microbubble generation function.

2. In paragraph 1, The above plasma generating unit is, A first body part having a first installation space therein; A rotating fan (Fan) installed on one side of the first body part and rotating to allow air to flow from the upper air layer on which the housing is installed into the first installation space; A cyclone section installed in the first installation space and sucking in air introduced into the first installation space through the rotating fan section to separate and remove moisture in the air through centrifugal force caused by a vortex; A blower unit installed in the first installation space and connected to the upper part of the cyclone unit through a gas suction pipe, which sucks in gas from which moisture has been removed through the cyclone unit through the gas suction pipe and then pressurizes and discharges the gas through a gas supply pipe to which one end is connected; and A plasma treatment unit is characterized by including a plasma treatment unit installed in the first installation space and connected to the other end of the gas supply pipe, and performing plasma discharge treatment on gas supplied under pressure from the blower unit to generate an active gas in the form of plasma and discharge it through the plasma supply pipe to which one end is connected. A water purification device equipped with a microbubble generation function.

3. In paragraph 2, The above cyclone section, An air intake section having an intake port for air introduced into the first installation space; A first cyclone body part formed in a cylindrical shape with an internal space, which is connected to the air intake part and forms an integral body, and the air sucked through the intake port forms a swirling flow and flows in; and A second cyclone body part is formed by extending into a hollow cone shape with an internal space formed by a diameter that narrows from the bottom of the first cyclone body part; The gas that is separated from moisture and moves upward through centrifugal force caused by the swirling flow generated in the internal space of the first cyclone body part and the second cyclone body part is characterized in that it is sucked into one end of the gas suction pipe that is connected to the internal space of the first cyclone body part in the upper central part of the first cyclone body part so as to be in communication with the first cyclone body part. A water purification device equipped with a microbubble generation function.

4. In paragraph 2, The above microbubble generation unit is, A second body part having a second installation space inside, the other end of the plasma supply pipe being connected to the lower end of one end, and an active gas in the form of plasma being supplied into the second installation space; A water inlet provided with a mesh-shaped net structure and installed on the bottom surface of one end of the second body part to provide an open space through which water can flow into the second installation space from the water on which the housing is installed; A microbubble water generating pump unit installed in the second installation space and sucking in plasma-type active gas supplied into the second installation space from the other end of the plasma supply pipe and water introduced through the water inlet, and mixing them through the rotational movement of an impeller provided inside to generate microbubble water; and A microbubble discharge unit is provided in the form of a pipe having a microbubble discharge path inside, one end of which is connected to the microbubble water generating pump unit, and the other end is exposed to the outside of the second body unit so that the microbubble water moving through the microbubble water discharge path can be discharged into the water. A water purification device equipped with a microbubble generation function.

5. In paragraph 4, The pump unit for generating the above microbubble water is: A pump suction part installed on the other end side of the second body part and having at least one pump suction port; and A tubular pump module having the impeller installed therein so as to be rotatable, comprising a pump part for generating microbubbles, which is connected to the pump suction part so as to have a structure communicating with at least one pump suction port, and is arranged from one end to the other end of the second body part; At least one pump suction port provided in the above pump suction section is characterized in that the center of the open space in the upper and lower direction on the other end side of the second body part is formed above the other end connection part of the plasma supply pipe and the water inlet. A water purification device equipped with a microbubble generation function.

6. In paragraph 5, The above microbubble generation unit is, It is characterized by further comprising at least one gas dividing section installed over the entire or part of the vertical cross-section at least at one or more positions between the water inlet and the pump suction section in the second body section, which is provided with a porous mesh structure having a plurality of micropores. A water purification device equipped with a microbubble generation function.

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