JPH0747392A - Water stream type water quality improving and purifying device - Google Patents

Abstract

PURPOSE:To efficiently generate the water stream high in straight progressing property by discharging under pressure and sucking under negative pressure using a pressurized water as a hydraulic source, to cause the water steam ranging over a wide range by spreading the access range of the water stream, to purify a water quality by preventing the residence of the water at under-water or at the bottom of the water by using the water stream, and to make the structure simple, cause no trouble and eliminate the need of maintenance. CONSTITUTION:The pressurized water generator generating the pressurized water is provided, and the discharging.sucking actuator 3 generating the water stream by discharging under pressure and sucking under negative pressure using the pressurized water as the hydraulic source is provided in the water, and the forcible feeding passage 2 supplying the pressurized water to the inside of the actuator 3 is provided, and the discharging.sucking passage 3a straight to the inside of the actuator 3 is formed penetratingly, and the cyclic pressurizing chamber 3d to which the pressurized water is allowed to flow in and a cyclic spraying passage 3e are formed in a circumferential direction around the central part of the passage 3a across a wall. In this way, the downstream side of the cyclic spraying passage 3e is formed slantly to the discharging opening 3c side and also is reduced gradually in diameter, and the cyclic spraying opening 3f facing to the whole periphery of the inner peripheral surface of the discharging.sucking passage 3a is formed at the downstream end of the cyclic spraying passage 3e.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality improving and purifying device used for improving and purifying water quality and bottom sediment in the ocean, lakes, rivers, etc., and particularly to pressurized discharge and negative pressure using pressurized water as an operating source. The present invention relates to a water stream type water quality improving and purifying apparatus which prevents water from staying by generating a water stream by suction and uses the water stream to improve and purify water quality.

[0002]

2. Description of the Related Art As a method for purifying water quality, an air bullet (air mass) is intermittently sent from a lower layer into water by a cylindrical device to the upper layer, and the upper layer flow generated causes circulating water flow in the upper and lower layers, or A water flow is generated in the water by the rotation of the rotary blades directly connected to the driving machine installed in the water or at the bottom of the water.
There are known methods for improving and purifying water quality by utilizing these water flows.

[0003]

However, the above-mentioned method of producing a water flow by intermittently releasing air bullets has a weak force for sustaining the water flow (there is a limit in the low water level), and its arrival is reached. There is an inconvenience that the range becomes narrow. Moreover, it is difficult to generate a horizontal water flow, the flow exerted on the bottom layer is weak, and the most important bottom layer purification is inferior.

Further, the above-mentioned method of causing a water flow in water by the rotation of the rotary blades directly connected to the driving machine installed in the water or at the bottom of the water can generate a strong water flow around the rotary blades, but Since it is a diffusing flow, the reach of the water flow is narrow, and it is difficult to cause the water flow over a wide range. Moreover, the water flow generated due to the rotation of the rotor blades becomes a spiral flow, and a part of the water flow energy is consumed as a rotating flow, so the linear flow becomes weaker by that amount, and as a result, the reach of the water flow becomes narrower. There was also.

Further, the above-mentioned method of causing a water flow in water by the rotation of the rotary blades directly connected to the driving machine installed in the water or at the bottom of the water, the mechanical drive mechanism for driving the rotary blades is in the water, so The mechanical drive mechanism must be watertight and costly, and the mechanical drive mechanism is complicated in structure and prone to failure, and is submerged in water. Maintenance was difficult, and there were inconveniences such as high management costs and costs.

The present invention was made in view of the above problems and was devised to solve the problems. The object of the present invention is to make a straight line by pressurized discharge and negative pressure suction using pressurized water as an operation source. Highly efficient water flow, widen the reach of the water flow to cause a wide range of water flow, and use this water flow to prevent water from staying in the water or at the bottom of the water and improve water quality The present invention aims to provide a water flow type water quality improving and purifying device which has a simple structure, is hard to break down, and requires little maintenance.

[0007]

In order to achieve the above object, the invention of claim 1 is provided with a pressurized water generator for generating pressurized water, and the pressurized water is used as an operation source to generate a water flow by pressurized discharge and negative pressure suction. A discharge suction actuator to be generated is installed in water,
A pressure feed passage for supplying the pressurized water generated by the pressurized water generator to the discharge suction actuator is provided, a straight discharge suction passage is formed inside the discharge suction actuator, and a wall is formed around the central portion of the discharge suction passage. Separately, an annular pressure chamber and an annular injection path into which the pressurized water supplied through the pressure feeding path flows are formed in the circumferential direction, and the downstream side of the annular injection path is inclined and directed toward the discharge port side of the discharge suction passage. In addition, the annular injection path is gradually reduced toward the downstream side and narrowed, and an annular injection port facing the entire circumference of the inner peripheral surface of the discharge suction passage is formed at the downstream end of the annular injection path.

Here, as a preferred mode, an air discharge port is formed at the downstream end of the air pressure feeding passage connected to the air compressor on the upstream side, and the air discharge port is provided in the suction port of the discharge suction passage of the discharge suction actuator. It may be provided so as to be oriented toward the discharge port side.

[0009]

The present invention having the above-described structure operates as follows. That is, the pressurized water generated by the pressurized water generator enters the annular pressure chamber of the discharge suction actuator installed in the water through the pressure feeding passage, and the flow velocity is further accelerated while passing through the annular injection passage from the annular pressure chamber. Is ejected from the annular injection port into the discharge suction passage, the injected pressurized water pushes the water in the discharge suction passage toward the discharge port at high pressure and high speed, and ejects a large amount of water from the discharge port at high pressure and high speed. The jetted water causes a flow in the water. Moreover, since the water jetted at high pressure and high speed reaches far away, it causes a flow in the water over a wide range.

Further, a high flow velocity region appears in the discharge suction passage downstream of the annular injection port, and the appearance of this high flow velocity region causes a negative pressure suction region in the discharge suction passage upstream of the annular injection port. Appears, and a large amount of water is sucked from the suction port into the discharge suction passage by the negative pressure suction and continuously flows toward the discharge port side. At this time, a flow associated with the inflow of a large amount of water is also generated on the suction port side.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described more concretely with reference to the embodiments shown in the drawings. Here, FIG. 1 is an overall system diagram of the water flow type water quality improvement purification device, FIG. 2 is a cross-sectional structural view of the discharge suction actuator, FIG. 3 is a cross-sectional view taken along the line AA of FIG. 2, and FIG. 4 is a discharge suction actuator. FIG.

In the figure, the water flow type water quality improvement purification device is
Pressurized water generator 1 for generating pressurized water, pressurizing water passage 2 serving as a passage for supplying the pressurized water generated by pressurized water generator 1 to discharge suction actuator 3, and pressurized water generated by pressurized water generator 1 as an operation source It is mainly composed of a discharge / suction actuator 3 that generates a water flow by discharge and negative pressure suction.

The pressurized water generator 1 is a device that pressurizes the water pumped up at the water intake 1a and supplies it to the discharge / suction actuator 1 through the pressure feeding passage 2, and is installed upstream of the pressure feeding passage 2. Pumping pumps are used. Pumping pumps are installed on land or in water depending on the purpose. Electricity, a motor, etc. are used as the driving force of the pump 1b of the pumping pump.

An upstream side of the pressure feed passage 2 is connected to the pressurized water generator 1 and a downstream end thereof is connected to the discharge suction actuator 3. The pressure feed passage 2 is a passage for supplying the pressurized water generated by the pressurized water generator 1 to the discharge suction actuator 3, and the flexible pipe made of vinyl, for example, is used in the pressure feed passage 2.

The discharge / suction actuator 3 has a laterally long cylindrical shape and is formed with a warhead at both ends, and a straight discharge / suction passage 3a penetrating between both ends of the warhead is formed therein. The discharge / suction passage 3a has a circular cross section. One end of the discharge / suction passage 3a serves as a suction port 3b and the other end thereof serves as a discharge port 3c. The opening cross section of the suction port 3b side is gradually enlarged toward the outside.

The discharge / suction passage 3a sucks seawater or fresh water from the suction port 3b at one end, flows the sucked seawater or freshwater toward the discharge port 3c at the other end, and accelerates the seawater or freshwater by pressurized water in the middle thereof. Then, the discharge port 3c at the other end is vigorously discharged to generate a straight flow in the water and a wide-range flow in the water.

Around the center of the discharge / suction passage 3a in the circumferential direction, a ring-shaped pressurizing chamber 3d and a ring-shaped injection passage 3e are separated by a wall.
Are formed. Annular pressure chamber 3d and annular injection path 3e
Are formed on the entire circumference in the circumferential direction of the discharge suction passage 3a with a wall in between. The annular pressurizing chamber 3d has both side wall surfaces in the cross-sectional direction formed of circular side wall surfaces each having a uniform diameter. The downstream end of the pressure feeding passage 2 is connected to the annular pressure chamber 3d.

The annular injection passage 3e is formed adjacent to the downstream side of the annular pressure chamber 3d. Both side wall surfaces in the cross-sectional direction of the annular injection passage 3e are formed by linear conical side wall surfaces having different cone angles. The entire circumference of the annular injection passage 3e is inclined toward the discharge port 3c side of the discharge suction passage 3a. That is, the converging direction of the conical side wall surface is the discharge port 3 of the discharge suction passage 3a.
It is oriented toward the c side.

The cone angles of the wall surfaces on both sides of the annular injection passage 3e are sharper on the outside than on the inside, and the wall spacing on both sides is temporarily reduced and narrowed toward the downstream side, and at the most narrowed downstream end thereof. An annular injection port 3f facing the discharge suction passage 3a is formed. The annular injection port 3f is formed on the entire inner circumferential side surface of the discharge suction passage 3a in the circumferential direction.

By the way, when water having a high dissolved oxygen content is to be sent into seawater or fresh water, the above-mentioned structure is further added.
An air compressor 4, an air pressure feeding passage 5, an air discharge port 5a, etc. are added.

The air compressor 4 is a device that pressurizes air on land and supplies it to the discharge suction actuator 1 through the air pressure feeding passage 5, and is installed upstream of the air pressure feeding passage 5 on land. Electricity, an engine, or the like is used as a driving force for the driving machine 4a of the air compressor 4.

The upstream side of the air pressure feed passage 5 is connected to the air compressor 4, and the downstream end thereof faces the discharge suction passage 3a of the discharge suction actuator 3.
The air discharge port 5a is a passage for supplying the compressed air generated by the air compressor 4 into the discharge suction passage 3a of the discharge suction actuator 3, and the air pressure supply passage 5 is, for example, a pressure resistant pipe.

An air discharge port 5 is provided at the downstream end of the air pressure feeding passage 5.
a is formed, and the air discharge port 5a is formed in the discharge suction passage 3
It is inserted from the suction port 3b of a and is oriented toward the discharge port 3c side. The air discharge port 5a is the holding member 5
It is held in the discharge suction passage 3a by b.

Next, the operation based on the configuration of the above embodiment will be described below. The discharge / suction actuator 3 is submerged and installed in seawater or fresh water that requires water quality / bottom improvement, purification, etc. of the ocean, lakes, rivers, etc., and the drive unit 1b of the pressurized water generator 1 is operated. By the operation of the driving machine 1b, seawater or fresh water pumped up from the water intake 1a is generated by the pressurized water generator 1 into pressurized water.

The pressurized water generated by the pressurized water generator 1 is supplied to the annular pressurizing chamber 3d of the discharge / suction actuator 3 through the pressure feeding passage 2, and passes through the annular ejecting passage 3e on the downstream side for the entire circumference in the circumferential direction. Injection is performed from the annular injection port 3f formed in the inside of the discharge suction passage 3a toward the discharge port 3c.

At this time, the diameter and the injection path gap of the annular injection path 3e from the annular injection path 3e toward the annular injection opening 3f are temporarily reduced and narrowed toward the annular injection opening 3f. The flow of pressurized water through 3e accelerates.

Since the pressurized water is accelerated while passing through the annular jet passage 3e and jetted from the annular jet port 3f, it becomes a high pressure jet, and the high pressure jet causes seawater or fresh water in the discharge suction passage 3a on the downstream side of the annular jet port 3f. Is pushed toward the discharge port 3c at a high speed, and a high-speed flow region X appears in the discharge suction passage 3a on the downstream side of the annular injection port 3f.

Due to the appearance of the high-speed basin X, the annular injection port 3
Negative pressure is generated in the discharge suction passage 3a on the upstream side of f, and the suction negative pressure region Y appears. Due to the appearance of the suction negative pressure region Y, the discharge suction passage 3 on the upstream side of the annular injection port 3f.
A suction force is generated in a, and a large amount of seawater or fresh water is sucked into the discharge suction passage 3a from the suction port 3b by this suction force. A water flow due to suction inflow occurs on the suction port 3b side of the discharge / suction passage 3a.

Further, due to the appearance of the high-speed flow region X, a high-pressure discharge force (injection force) is generated in the discharge suction passage 3a on the downstream side of the annular injection port 3f. This discharge force (jetting force) is
In proportion to the flow rate of the pressurized water jetted from the annular jet port 3f,
The flow velocity becomes faster and the ejection force (jetting force) becomes stronger. The strength of the injection force from the annular injection port 3f can be controlled by controlling the pressurized water generator 1.

As a result, the discharge port 3 of the discharge suction passage 3a
Pressurized water and a large amount of seawater or fresh water are discharged from c by a high-pressure discharge force (spraying force), and a flow with high straightness can be generated to a long distance, and a flow can be generated over a wide range. Further, even in the water in front of the suction port 3b of the discharge / suction passage 3a, the suction port 3b for sucking a large amount of seawater or fresh water is used.
A flow towards the wake occurs.

When it is desired to feed water having a high dissolved oxygen amount into seawater or fresh water, the driving machine 4a of the air compressor 4 installed on land is driven. Driver 4a
By driving, a part of the air in the atmosphere is sucked by the air compressor 4, the sucked air is compressed by the air compressor 4, and the compressed air passes through the air pressure passage 5 and is discharged from the air discharge port 5a at the lower end. Is discharged toward the discharge port 3c into the discharge suction passage 3a of the discharge suction actuator 3.

The compressed air discharged into the discharge / suction passage 3a is sent to the discharge port 3c side by the water flow flowing in the discharge / suction passage 3a toward the discharge port 3c side. Discharge suction passage 3a
The compressed air flowing inside toward the discharge port 3c side is mixed in the water by the injection energy from the annular injection port 3f in the middle thereof.

Discharge suction passage 3 downstream of the annular injection port 3f
Since the inside of a has a high pressure, the compressed air injected by the injection energy from the annular injection port 3f into the suction negative pressure region Y of the discharge suction passage 3a on the upstream side of the annular injection port 3f becomes ultrafine particles by the injection energy. It penetrates well and can increase the dissolved oxygen saturation in water.

The present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the present invention.

[0035]

As is apparent from the above description, according to the water flow type water quality improving and purifying apparatus of the present invention, the pressurized water generated by the pressurized water generator is used as the operating source to generate the pressurized water injected from the annular injection port. The water in the discharge / suction passage can be pushed toward the discharge port at high pressure and high speed, a large amount of water can be jetted from the discharge port at high pressure and high speed, and a flow can be generated in the water by the jetted water. Moreover, since the water jetted at high pressure and high speed reaches a long distance, a flow can be generated in the water over a wide range.

A high flow velocity region appears in the discharge suction passage downstream of the annular injection port due to the high-pressure and high-speed flow of the pressurized water, and the appearance of this high flow velocity region causes the discharge upstream of the annular injection port. A negative pressure suction area appears in the suction passage, and a large amount of water is sucked into the discharge suction passage from the suction port by the negative pressure suction force and continuously flows toward the discharge port side. A flow accompanying a large amount of water can also be generated on the suction port side.

In this way, the water mass is moved together with the amount of water attracted by the negative pressure suction force generated by the appearance of the high flow velocity region inside the discharge suction passage, and the discharge water amount and the suction amount obtained by the pressurized water generator are comprehensively obtained. The total amount of water and the amount of pressurized water reaches several times the amount of pressurized water, and the jet flow generated at that time causes the flow of the surrounding water mass and can be continuously maintained. From this, the effect on the fluidity of water is greater than that of the intermittent air system which does not have continuity. Moreover, although the effective range of the intermittent air type is narrow and limited, the discharge suction actuator has the ability to exert a wide range of water flow effects, and the water flow generation direction can be horizontal, vertical, or diagonal.

Further, as compared with the rotary blade device directly connected to the drive machine, the water jetted from the discharge port has high straightness and does not generate a rotary flow, so that the energy efficiency thereof is high, and the discharge suction operation machine is good. The structure of (1) does not have a mechanical drive mechanism and its structure is simple, there is no risk of failure, and its maintenance is almost unnecessary. In addition, since it does not have a mechanical drive mechanism that requires watertightness, a high degree of watertightness is not required for its manufacture, and the manufacturing cost of the device and the maintenance cost including the above maintenance can be reduced. .

Further, it has an effect of introducing pressurized water having a high dissolved oxygen concentration, which is an important factor for purification, into the low oxygen bottom layer.

Further, in the case of the constitution of claim 2, in addition to the above-mentioned effects, there is a very novel and beneficial effect such that the saturation of dissolved oxygen in water can be increased by injecting air.

[Brief description of drawings]

FIG. 1 is an overall system diagram of a water stream type water quality improving and purifying apparatus showing an embodiment of the present invention.

FIG. 2 is a cross-sectional structure diagram of a discharge suction actuator showing an embodiment of the present invention.

FIG. 3 is a sectional view taken along the line AA of FIG.

FIG. 4 is a perspective view of a discharge suction actuator according to an embodiment of the present invention.

[Explanation of symbols]

 1 Pressurized Water Generator 1a Water Intake 1b Driver 2 Pressure Feeding Channel 3 Discharge Suction Actuator 3a Discharge Suction Channel 3b Suction Port 3c Discharge Port 3d Annular Pressurizing Chamber 3e Annular Jet 3f Annular Jet 4 Air Compressor 4a Driver 5 Air Pressure Feeder Passage 5a Air outlet 5b Holding member X High-speed flow area Y Suction negative pressure area

Claims (2)

[Claims] 1. A pressurized water generator for generating pressurized water is provided,
A discharge suction actuator that generates a water flow by pressurized discharge and negative pressure suction using pressurized water as an operation source is provided in water, and a pressure feed passage that supplies the pressurized water generated by the pressurized water generator to the discharge suction actuator is provided. A straight discharge suction passage is formed through the inside of the actuator, and a ring around the central portion of the discharge suction passage is separated from the wall by an annular pressure chamber and an annular injection path into which pressurized water supplied through the pressure feeding passage flows. Forming in the circumferential direction,
The downstream side of the annular injection path is formed so as to be inclined toward the discharge port side of the discharge suction passage, and the annular injection path is temporarily reduced toward the downstream side and throttled, and the downstream side of the annular injection path of the discharge suction passage is formed. A water flow type water quality improving and purifying device characterized in that an annular injection port is formed so as to face the entire circumference of the inner peripheral surface. 2. An air discharge port is formed at a downstream end of an air pressure feeding passage connected to an air compressor at an upstream side, and the air discharge port is directed to the discharge port side in the suction port of the discharge suction passage of the discharge suction working machine. The water flow type water quality improving and purifying apparatus according to claim 1, which is provided as a member.