DE29920383U1 - Aquarium and pond filters - Google Patents

Description

Rudi Müller 18.11.1999

Pletschmühlenstr. 19
41849 Wassenberg
Phone: 02432/3650

DESCRIPTION Aquarium and pond filters

Clarification of aquarium and pond water by killing floating algae, bacterial pathogens and organic suspended matter floating in the water by irradiation with SHF (microwaves).

The current state of the art:

1. Filters that pass the water through filter material that filters out suspended particles in the water. The filters must be constantly cleaned of sludge, floating algae and impurities to maintain the filter performance.

Available in specialist stores.

2. Filter, as described in No. 1, designed as a pressure filter filled with additional granulate, e.g. crushed lava. In the granulate, microorganisms develop over a few weeks of continuous operation, which support the mechanical filtering process by killing algae and organic suspended matter through the biological clarification of the water. This type of filtering also requires the sludge, impurities, algae, etc. fed into the filter to be continuously removed in order for the filter to function. In addition, the biological part of the system must be continually cleaned of sludge so that the microorganisms can do their work.

Available in specialist stores.

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3. Filters that use neon tubes with a high UV content to clean water flowing through them by killing floating algae, bacterial pathogens and organic suspended matter. This type of filtering has the disadvantage that after a while the UV tubes burn out and have to be replaced with new UV tubes.

Available in specialist stores.

Design and operation of the microwave filter:

The aquarium and pond filters can be made in any shape and size.
A screwable or coverable opening allows the filter to be cleaned.

Pond or aquarium water flows through the filter using hoses or pipes, driven by a pump or by the difference in height of the water supplied to the filter.

An antenna is guided into the filter from a microwave generator located outside the filter.

The positive pole forms an antenna system, adapted to the filter interior.
The negative pole of the antenna is connected to the filter wall.

The filter wall is made of V 4 α steel. Another material can be added as an outer wall.

The V 4 A steel filter wall as the negative pole is optimal, thereby achieving a uniform microwave irradiation of the filter interior.

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If another metal were used, atoms would be split off from the metal when combined with water, which would break down into ions and, if sufficiently concentrated in the water, would kill the fish.

The antenna length of the positive pole is a fraction of half the wavelength of the frequency used to achieve optimal antenna performance.

When the microwave generator is switched on and pond or aquarium water flows through the filter, the floating algae, bacterial pathogens and organic suspended matter in the water are killed by the microwave radiation.

Required filter material: The example is given for a fish pond;

A microwave generator with the necessary amplification.

Example of a 2.44 GHz (gigahertz) generator with dimensions (20 x 30) mm, height 5 mm. Mounted using SMD and conventional technology on a perforated Cu plate coated on one side. The circuit diagram may not be published due to protection claims. Listed in the electronics construction book "300 Oscillators" by Rudolf Graf from Elector Verlag GmbH Aachen. The generator was described as 1.8 GHz, page 243, and slightly modified by the applicant to achieve a higher output of 2.44 GHz.

4 amplifier groups. Dimensions per amplifier group (40 x 50) mm, height 3 mm. With SMD and conventional technology, mounted on circuit boards coated with copper on both sides. Each amplifier group has 4 MICS (monolithic integrated microwave circuits), size (5 x 5) mm, with the external circuitry required depending on the frequency.

Cascadable. With 50 Ohm input and output impedance. 68 dB per amplifier group

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(decibels). Interconnected at 272 dB. The circuit diagrams may not be published either due to copyright reasons. The circuit diagrams are listed in Elektor Verlag Aachen, author Joseph J. Carr, pages 262 - 280, part 2, "Secrets of RF Circuit Design".

The generator and the amplifier group are operated with 9.50 volts DC and 500 mA via a 220 volt, 50 hertz mains transformer.

One antenna, total length 1,220 cm. The antenna is a fraction of half a wavelength of 2.44 GHz to achieve optimal antenna performance.

The antenna consists of 2 parts. From the generator connection to the filter, the antenna consists of coax, air cell cable 50 Ohm. Cu 2.70 mm 0, Aircom Plus, length 42 cm. Frequency range up to 10 GHz.

A coaxial cable antenna of 1.1 mm 0, Cu, 50 Ohm is used in the filter room. The outer sheath with the earth, negative pole, has been removed. Coaxial cable has proven to be the best microwave transmitter in the test. The length of the antenna in the filter is 1178 cm.

The height of the antenna in the filter is 45 cm and is formed into 13 isosceles triangles to form a circle of 9 cm 0. The two ends of the antenna are connected together with 2 cable ties. The open end of the coaxial cable that does not exit the filter chamber is sealed with epoxy resin so that the plus and minus remain isolated when the filter is in operation.

1. Die-cast aluminum housing. Dimensions (113 L x 88 W x 50 H) mm. Can be closed with a lid. Equipped with 2 plastic cable glands for antenna and power connection.

1 pipe 50 cm long, 15 cm 0, material V 4 A steel, 0.7 mm wall thickness.

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1. Plastic cap with 15 cm 0.5 cm rim height. 1. Plastic cap with 15 cm 0.2 cm rim height.

1. Hose connection screw connection 3/4" plastic.

1 hose 3/4" plastic, 30 cm long.

2 discs 15 cm 0, made of V 4 A steel with 0.7 mm wall thickness.

3 plastic rods, each 47 cm long, 6 mm 0. 2 plastic rods, 15 cm long, each 6 mm 1 plastic rod, 33 cm long, 8 mm 0.

16 cable ties, 10 cm long, plastic. 50 gr. 5 minute epoxy resin. Hardener and resin, waterproof. 30 cm V 4 A steel wire 1 mm 0.

3 screws with nuts M 5, 10 mm long in V 4 A steel. Structure of the microfilter:

Two holes are drilled in the 50 cm long and 15 cm 0 V 4 A steel pipe for the inflow and outflow of the pond water (with a stainless steel drill, Cobalt HSS-E).

The hole for the water inlet is drilled 7 cm above a 19 mm Ø pipe end. A plastic hose connector is screwed into the hole and sealed with epoxy resin.

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Another hole for water drainage with a diameter of 20 mm is drilled at the other end of the V 4 A filter pipe. The center of the hole from the end of the pipe is 30 mm.

The two plastic caps with a diameter of 15 cm are each provided with a V 4 A steel disc 0.7 mm thick from the inside and glued on with epoxy resin.

The plastic cap with 15 cm 0 and 2 cm edge height is installed on the water drainage side without fastening on the V 4 α steel pipe.

An 8 cm diameter and 33 cm long plastic rod is glued with epoxy resin onto the cap with the 2 cm edge height. The rod serves to fix the V 4 A steel filter tube, which is inserted into a plastic container. The plastic rod protrudes evenly over the filter tube on both sides.

The microwave filter was installed by the applicant for the utility model protection in a mud and sand trap already dug into the edge of the pond. The diameter of the plastic container with lid is 33 cm and the depth is 63 cm.

The plastic container is connected to a 3/4" inlet and outlet hose. The water from a 10 ^m3 fish pond is pumped through the plastic container and returned to the fish pond via a 25 watt, 220 volt mains pump. The inlet opening in the container is 10 cm above the ground and the outlet in the tank is 40 cm above the water inlet nozzle. The pump in the pond is 40 cm below the water surface.

The 50 cm long V 4 A steel pipe filter is inserted into the plastic container after completion.

At the pipe end of the water inlet of the V 4 α steel pipe, the plastic cap with 15 cm 0 and 5 cm edge height is glued with epoxy resin (waterproof).

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A hole of 5 mm 0 is drilled 20 mm from the edge of the V 4 A pipe at the end of the water inlet. Through the V 4 α steel pipe and through the edge of the glued-on cap. A V 4 A steel screw, 10 mm long, is inserted through this hole and secured with a 4 cm long, 1 mm 0

V 4 A steel wire is screwed on. The free end of the V 4 A steel wire is glued to the inside of the pipe on the cap cover with epoxy resin.

At the top end of the V 4 α steel tube, on the side with the 2 cm cap edge, a 5 mm 0 hole is drilled for a 10 mm long V 4 A steel screw M 5. 30 mm from the edge of the V 4 A steel tube and a hole of the same size, 30 mm from the edge of the cap onto which the 33 cm long plastic rod is glued. An M 5 V 4 A steel screw, 10 mm long, is inserted into each of the 2 holes and screwed in with a 15 cm long, 1 mm 0 V 4 A steel wire.

The lid is removed to clean the filter.

The negative pole of the generator can now be connected to the filter tube and the two end caps.

The ring antenna is now inserted into the filter chamber. To fix the antenna to the filter edge, two 6 mm Ø and 15 cm long plastic rods are attached crosswise to the upper and lower ends of the antenna with cable ties.

In the middle of the filter tube, inside the plus antenna ring, a V 4 A tube, 10 mm 0 is attached, which is bent at a height of 47 cm and connected with the minus pole to the V 4 �Agr; screw on the

V 4 α steel pipe. The 10 mm 0 V 4 α steel pipe is attached to the lower fixing rod in the filter with a cable connector. It serves as an additional negative pole.

The connection of the ring antenna in the filter chamber is led to the outside through a 10 mm 0 cable gland. A hole of 10 mm 0 is drilled at a distance of 30 mm

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in the V 4 α steel pipe to which the unattached cap is attached. A 10 mm 0 cable gland is screwed into the hole.

The 2.44 GHz microwave generator and the 4 amplifier components tied together with cable ties are inserted into the aluminum injection molded housing and the connections are led to the outside through cable glands. 1 power connection 9.50 volts DC, 500 mA and the antenna connection with coax cable, each 10 cm long.

The 4 amplifier components packed on top of each other are separated from each other by rubber buffers to prevent short circuits.

The metal housing prevents the emission of high frequency radiation.

The metal housing with the microwave generator and amplifiers is attached to the inner edge of the plastic container under the lid.

The coax cable connection from the amplifier block to the filter is 43 cm long. Air cell cable 50 Ohm, Cu 2.7 mm 0, usable up to 10 GHz is used.

The V 4 A filter pipe is now connected to the plug-in connection with a 3/4", 30 cm alkaline hose. The hose is connected at the other end to the water inlet connection from the pond. The water plug connection on the V 4 A steel pipe is located at the bottom of the V 4 A steel pipe standing upright in the plastic container.

When the pump in the pond is started, the pond water flows up the V 4 A filter pipe. At the other end of the V 4 α steel pipe, the water then flows out of the 20 mm 0 hole into the plastic container. When the water in the plastic container has reached the height of the drain pipe in the plastic container, it flows back into the pond.

The generator connections are now connected to the power supply and the coax cable to the filter.

4 #«

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The microwave pond filter is now ready for use.
Commissioning the microwave filter:

The power supply to the microwave generator is switched on.

When the pump in the pond is started, pond water flows through the pond filter.

The frequency of 2.44 GHz and 272 dB generated and amplified in the generator is fed into the filter chamber via the antenna and kills the floating algae, bacterial pathogens and organic suspended matter in the flowing water.

With a pump output of 25 - 50 watts, 220 volts and a 3/4" hose connection, the water flows through the filter twice in 24 hours with a volume of 10 m3 of ^pond water.

With a pump output of 25 - 50 watts, 220 volts and a 3/4" hose connection, the water flow is 10 liters in 45 seconds.

The V 4 A filter tube holds 7.95 liters of water up to the water drain opening, which flows through the filter tube in 35.78 seconds.

This means that the floating algae, etc. are irradiated with microwaves for 35.78 seconds each time the water passes through.

Sufficient time to kill floating algae, bacterial pathogens and suspended organic matter at 2.44 GHz and 272 dB.

Cleaning the pond filter:

Turn off the power to the filter and pump each time you clean.

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Remove the top cover of the filter tube and unplug the hose connector.

Carefully rinse the filter chamber using a water hose or a container. The antenna must not be damaged.

The water sprayed into the filter chamber and any dirt present flows out through the open water inlet.

The advantages of the new filter described compared to the existing filter technology:

The ongoing cleaning of algae sludge from the filter mats, filter stones and filter granules, as described in numbers 1 and 2, is no longer necessary.

If the mats and filter media are heavily contaminated, the algae recover very quickly and a constant up and down of the algae infestation in the ponds and aquariums can be observed.

If the filter media is not cleaned, no filtering will take place at all.
Existing filter technology:

Regarding versions 1.. 2.. 3.:

1. Over time, the filter mats, regardless of shape and type, deteriorate due to constant cleaning and must be replaced with new ones.

Or a new filter is needed.

2. The granules and porous lava rock or artificial products are used to allow bacteria to settle in the cavities and create or increase the filtering effect by using the floating algae, bacterial pathogens or organic suspended matter as food.

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After a while, the granulate and porous lava rock or artificial products have to be replaced because the porous areas become clogged with mud and harden. This means that the bacteria can no longer find a hold and are washed away.

In order for filtering to occur again, new material must be purchased.
Or a new filter is needed.
3. Filters with UV rods only last for a limited time.

The U.V. filter rods break very easily during impact, transport, cleaning, etc.

Depending on the size and method of manufacture, the effect of UV radiation decreases after a certain period of time or loses its effectiveness completely.

A new UV tube must be purchased.
Or a new filter.
To No. 1.. 2.. 3. Page 1 and 2 "Existing filter technology/fire filters":

1. The work described in numbers 1 and 2 is not necessary with the microwave filter listed. The unhygienic removal of the algae sludge is no longer necessary.

2. The necessary costs described in numbers 1, 2 and 3 do not apply to the microwave filters listed.

Claims (2)

1. Aquarium and pond filters for killing floating algae, bacterial pathogens and organic suspended matter, characterized by :
SHF (microwave) irradiation of aquarium or pond water flowing through a closed container. The water flow is achieved by a pump with hose connections on the container or by height difference of the water supplied to the filter.
The microwaves are generated by an SHF generator.
The SHF generator is located outside the water-flowing container.
The microwaves are transmitted via an antenna into the water-filled container. 2. Aquarium and pond filter according to claim 1 characterized by:
Installation of an SHF filter on a pond or aquarium. Or in a pond or aquarium below or above the water surface.
The microwaves are generated either with mains power or battery power by an SHF generator.