TWM447086U - Improved contaminant removal structure of egg white foam remover for aquarium - Google Patents

Description

Improvement of sewage structure of aquarium protein demister

This creation relates to a sewage structure that avoids excessive cleaning of the dirt collection box and ensures the effectiveness of protein waste discharge, and has a high efficiency of removing the protein waste, especially an aquarium protein demister. Improved soil structure.

It is well known that equipment that is indispensable for raising aquarium organisms must be a water filter. However, in addition to this, it is necessary to add additional equipment according to the different organisms to be raised, and in the case of marine fish, in the aquarium The seawater quality will be deteriorated due to the excretion of fish, causing excessive ammonia or sulphuric toxins such as nitrous acid in the water. The elimination of these bacteria, viruses and fine dirt is not completely recognized by the filter. In this case, it must be excluded by using a protein demister or remover.

Conventional pumping motor type protein demister, such as the Republic of China Announcement No. 273079 "Improvement of aquarium water purifier structure", Republic of China Announcement No. M304218 "Small protein defoaming device for aquaculture", Republic of China Announcement No. M310595 The patent case of "Aquarium Seawater External Defoaming Filter" and the Republic of China Announcement No. M343382 "Gas and Water Mixing Device for Protein Defoamer" are all integrated by liquid-gas mixing pump or submersible motor connected to external air. When assembled in a container, the motor uses the motor to draw the aquarium water into the space to generate fine bubbles, so that the tiny impurities or proteins in the water are lifted to the sewage pipe and flow into the dirt collection box; Announcement No. 223741 "Aquarium Purification Water Filtration The device patent is separated from a container by a liquid-gas hybrid pumping motor connected to the outside air, and the motor is used to extract the aquarium water-mixed air and sent into the container to generate fine bubbles, because the water contained in the container contains A large number of fine bubbles, so that tiny impurities or proteins in the water are taken up to the sewage pipe into the dirt collection box; and, as in the Republic of China Announcement No. 228647, "Multi-efficiency aquarium filter mixing gas structure", Republic of China announcement No. 236773 "Improvement of aquarium protein fractionator", Republic of China Announcement No. 237609 "Aquarium water purification device addition (1)" and other patent cases are all taken from a separate pumping motor to extract aquarium water injection When the inside of a container is connected to the outside air, the water entering the container generates fine bubbles, and the bubbles lift the tiny impurities or proteins in the water to the sewage pipe and flow into the dirt collecting box.

Although the above-mentioned various types of conventional protein demister or device can move and discharge the dirt or the like from the water to the upper sewage pipe or the guiding pipe by the bubble, however, since the orifice of the sewage pipe or the guiding pipe has a large aperture, If the bubble is too small, the small buoyancy bubble, which is swollen from the water, almost ruptures before reaching the outlet of the sewage pipe or the guiding tube, causing most of the small impurities or protein dirt to return to the container or In the aquarium water solution, it affects the removal effect or efficiency of small impurities or proteins; if the bubble is large enough, the buoyant bubble will be accompanied by too much water and small impurities or proteins flowing to the dirt collection ring or collection box or In the collection cup, the storage space of the dirt is quickly filled up and must be cleaned frequently; that is, the conventional pumping motor type protein demister has always had the problem of poor or inefficient removal or removal of protein dirt, and dirt. The collection will result in more water being collected, and there is inconvenience that it must be cleaned up frequently. It is necessary to do it again. Innovation or improvement.

The main purpose of the present invention is to provide an aquarium protein demister with improved fouling structure, wherein a container body has a foam generating chamber inside, the foam generating chamber has a sewage outlet at the upper end and a pumping motor at the bottom end. a liquid-gas mixing device, and a gas permeable dirt collecting box is further disposed outside the outlet end of the sewage unit; the main part is that the sewage unit is a porous bubble guiding column and the axis of the cylinder a plurality of capillary holes for communicating the dirt collection box and the foam generating chamber; the water in the water tank is moved into the foam generating chamber of the container body through the operation of the pump motor type liquid gas mixing device to generate fine bubbles; The fine protein bubbles are used to destroy the protein structure in the water, so that the bubble-adsorbed broken small protein or peptide-like dirt rises to the sewage part; when the bubble passes through the capillary hole of the bubble-guided column discharge portion, the buoyancy is performed. The fine bubbles rise to the position of the entry hole of the capillary, and the weak force of the push caused by the capillary action of the capillary causes the fine bubbles to successively enter the capillary, and the rising will be small. White matter or peptide-like dirt is brought to the outlet of the capillary, and as the bubble bursts in the form of bubbling at the outlet, small protein or peptide-like dirt is discharged or exuded from the capillary outlet and flows to the dirt collection box. Collected within; the overall structure, because the bubbles that rise into the capillary pores only contain a very small amount of water, therefore, the small protein or peptide impurities are discharged in a concentrated form, allowing the collection space of the dirt collection box, Only small concentrated protein or peptide-like dirt can be temporarily collected in the water, to avoid the dirt cleaning work of the dirt collection box is too frequent; and small protein or peptide-like dirt with bubbles in the capillary When it rises to the exit, there are other rising bubbles that stop it from returning to the aquarium In the cylinder, in this way, the effectiveness of the protein waste discharge can be ensured, thereby improving the removal efficiency of the protein waste.

The second objective of the present invention is to provide an improved structure of the aquarium protein demister, wherein the upper end of the container body is formed as a set of interfaces, and the bubble guiding column discharge unit is disposed in the dirt collection. Inside the box, and the outer bottom end of the dirt collecting box is formed with a set of joints with respect to the sleeve of the container body; the set of the dirt collecting box is sleeved on the sleeve of the container body to guide the bubble The capillary inlet end of the column fouling portion penetrates into the foam generating chamber of the container body, so that the fine bubbles rising in the foam generating chamber reach the pore entrance, naturally enter the capillary hole, and are accompanied by small protein or peptide-like dirt. Move up to the outlet and collect it by the dirt collection box; only the assembly part of the dirt collection box should be directly removed from the socket of the container body, which can easily carry out the dirt collection box and the capillary hole of the sewage part. Cleaning or cleaning of dirt.

A further object of the present invention is to provide an improved aquarium structure of an aquarium protein demister, wherein the bubble guiding column has a plurality of capillary holes communicating with the dirt collecting box and the foam generating chamber. The inlet end of the capillary hole of the fouling portion of the bubble guiding column is formed with a tab-shaped guiding port; the bubble rising to the upper part of the foam generating chamber can be guided by the guiding port to generate a position toward the inlet of the capillary hole. The effect of getting the bubbles into the capillary pores smoothly.

Another object of the present invention is to provide an improved aquaculture structure of an aquarium protein demister, wherein the container body has a foam generating chamber, and the body has a liquid inlet and a liquid outlet; The container body is immersed in the aquarium, and a liquid-gas hybrid motor of the pump-type motor-liquid mixing device is disposed in the bottom end of the foam generating chamber. And a gas-water mixing component on the liquid-gas hybrid motor is connected to the liquid port and is connected to the outside air from an air inlet pipe; the operation of the liquid-gas hybrid motor causes the water in the aquarium to be drawn into the foam to generate When indoors, a large number of fine bubbles are generated by the gas-water mixing component, and the air bubbles in the water are carried by the bubbles to rise through the capillary pores of the fouling portion of the bubble guiding column, and flow into the dirt collecting box by using the foam to generate clean water after defoaming in the room. It is discharged from the liquid outlet to the aquarium, and then circulated into the foam generating chamber to continuously carry out and remove the protein waste to remove or remove it, effectively obtaining the good maintenance of the water quality in the aquarium.

Another object of the present invention is to provide an improved structure of a sewage structure of an aquarium protein demister, wherein the container body has a bottom closed foam generating chamber, and the body of the container has a nozzle and a liquid outlet. a liquid-liquid hybrid motor of the pump-type motor-type liquid-gas mixing device, which is connected to a gas-water delivery member extending from the gas-water mixing end at the nozzle of the container body into the foam generating chamber, and mixed by gas and water A pumping pipe on the component is connected to an intake pipe to the outside air; and the operation of the liquid-gas hybrid motor causes the water in the aquarium to be sucked into the foam generating chamber by the pumping pipe, and is sent from the gas-water sending member. In the water liquid, air is mixed to generate a large number of fine bubbles, and the air bubbles in the water are carried by the bubbles to rise through the capillary pores of the fouling portion of the bubble guiding column, and flow into the dirt collecting box; It is discharged from the liquid outlet to the aquarium, and then recycled back to the foam generation chamber to continuously carry out the function of removing or removing the protein waste, effectively obtaining the good maintenance of the water quality in the aquarium.

A further object of the present invention is to provide an improved aquaculture structure of an aquarium protein demister, wherein the container body has a foam generating chamber, and the foam is generated. Forming a closed gas-water mixing chamber at the bottom of the chamber, the gas-water mixing chamber is provided with a water injection port and a liquid outlet, and has at least one through hole and one liquid return hole between the foam generating chamber; A pumping motor of the motor-type liquid-gas mixing device has a water injection end connected to the water injection port and an intake pipe connected to the outside air; the water in the aquarium is pumped through the pumping water pump, and the air is injected at the water injection end. In the water mixing chamber, air is mixed in the water flowing through the vortex in the gas-water mixing chamber, and a large amount of fine bubbles can be generated from the through-hole to the upper foam generating chamber, and the bubble is carried by the water in the water. The capillary hole of the main sewage part flows into the dirt collecting box; after the foam is used to generate the indoor defoaming, the purified water can flow back to the gas mixing chamber along the return hole, and then drained from the liquid outlet to the aquarium to promote the water in the cylinder The protein waste is removed or removed cyclically to achieve good maintenance of the water quality in the aquarium.

A sewage structure of an aquarium protein demister is improved. As shown in FIG. 1 and FIG. 2, a container body 10 has a foam generating chamber 11 at the upper end, the foam generating chamber 11 has an oil discharging portion 20 at the upper end and a pumping water at the bottom end. a motor-type liquid-gas mixing device 50, and a venting, gas permeable dirt collecting box 30 is further disposed outside the outlet end of the sewage unit 20; the main part is that the sewage unit 20 is a porous bubble The guiding column, the axial direction of the cylinder, has a plurality of capillary holes 21 for communicating the dirt collecting box 30 with the foam generating chamber 11; as shown in Fig. 3, the water in the water tank 40 is passed through the pumping motor type liquid. The operation of the gas mixing device 50 enters the foam generating chamber 11 of the container body 10 and generates fine bubbles; the fine protein bubbles are used to destroy the protein structure in the water, so that the small protein or peptide-like dirt that is adsorbed and broken by the bubbles rises to the sewage unit 2 0; when the bubble passes through the capillary hole 21 of the bubble guiding portion 20 of the bubble guiding portion, the fine bubble having buoyancy rises to the position of the hole of the capillary hole 21, and is generated by the capillary action of the capillary hole 21. Pushing the weak force, causing the fine bubbles to successively enter the capillary 21, and rising to bring the adsorbed small protein or peptide-like dirt to the outlet of the capillary 21, and the small protein is broken as the bubble bursts at the exit. Or the peptide-like dirt is discharged or exuded from the outlet of the capillary hole 21, and flows into the dirt collecting box 30 to collect; the overall structure, due to the rising bubbles entering the capillary hole 21 (which will increase), contains only a very small amount. Moisture, therefore, small protein or peptide-like dirt is discharged in a concentrated form, allowing the collection space of the dirt collection box 30, and only a small amount of concentrated small protein or peptide can be temporarily collected. Dirt, avoiding the dirt cleaning work of the dirt collecting box 30 is too frequent; and small protein or peptide-like dirt rises to the outlet with the bubble in the capillary 21, because each bubble is followed by (continued) other The rising bubbles prevent it from flowing back Foam generating chamber 11 or the aquarium 40, so, to ensure the effectiveness of protein dirt discharge, thereby improving the efficiency of removal of protein contaminants.

According to the above embodiment, wherein the upper end of the container body 10 is formed as a set of interfaces 12, the bubble guiding column discharge portion 20 is disposed inside the dirt collecting box 30, and the dirt is The outer bottom end of the collecting box 30 is formed with a class type connecting portion 31 with respect to the socket 12 of the container body 10; the connecting portion 31 of the dirt collecting box 30 is sleeved on the socket 12 of the container body 10, 2, 3, the inlet end of the capillary hole 21 of the bubble guiding column discharge portion 20 is allowed to penetrate into the foam generating chamber 11 of the container body 10, so that the floating portion of the foam generating chamber 11 rises slightly. When the bubble reaches the entrance of the capillary hole 21, it naturally enters into the capillary hole 21, and the small protein or peptide-like dirt is moved up to the outlet to be discharged, and collected by the dirt collecting box 30; only the dirt collecting box 30 needs to be collected. The assembly portion 31 is directly withdrawn from the socket 12 of the container body 10 (not shown), and the cleaning or cleaning of the dirt in the capillary collecting hole 30 and the capillary hole 21 of the sewage portion 20 can be easily performed.

According to the above embodiment, wherein, as shown in FIG. 2, the bubble guiding column discharge portion 20 has a plurality of capillary holes 21 communicating with the dirt collecting box 30 and the foam generating chamber 11, and the bubble guiding column 20 of the fouling portion 20 At the inlet end of the capillary hole 21, a trap-shaped guide port 22 is formed; as shown in Fig. 3, the bubble rising to the upper portion of the bubble generating chamber 11 can be guided by the guide port 22 to be generated at the entrance of the capillary hole 21. The effect of concentration is obtained as a result of the smooth movement of the bubbles into the capillary holes 21.

According to the above embodiment, the present invention can also obtain the effect of decontamination or decontamination of the water in the aquarium by the following implementation; wherein, as shown in Figures 1 and 2, the container body 10 has a foam generating chamber 11 therein, and the body has a liquid inlet port 13 and a liquid outlet port 14 connected to a water outlet pipe; as shown in Figs. 1, 2, and 3, the vessel body 10 is immersed in the aquarium 40, and a liquid gas of the pumping motor type liquid-gas mixing device 50 The hybrid motor 51 is disposed in the bottom end portion of the foam generating chamber 11 and is connected to a liquid port 13 of the aquarium 40 and a water supply pipe from a gas-water mixing unit 52 on the liquid-gas hybrid motor 51. 53 is connected to the outside air; when the liquid-liquid hybrid motor 51 is operated to cause the water in the aquarium 40 to be drawn into the bubble generating chamber 11, a large amount of fine bubbles are generated through the gas-water mixing unit 52, and the air bubbles are carried by the air bubbles. The protein contamination in the water rises through the capillary hole 21 of the bubble guiding portion 20 of the bubble guiding column, and the discharge flow Into the dirt collecting box 30; after the defoaming in the foam generating chamber 11, the purified water can be discharged from the liquid outlet 14 to the aquarium 40, and then circulated into the foam generating chamber 11, continuously performing and producing protein waste. The effect of removing or removing is effective to obtain good maintenance of the water quality of the aquarium 40.

According to the above embodiment, the present invention can also obtain the effect of decontamination or decontamination of the water in the aquarium by the following embodiment; wherein, as shown in FIG. 4, the container body 10A has a bottom closed foam generating chamber 11A, the container body 10A. The body has a nozzle 13A and a liquid outlet 14A connected to a water outlet conduit; an external liquid-gas hybrid motor 51A of the external pumping motor type liquid-gas mixing device 50A, the gas-water mixing end is in the container body A gas-water delivery member 54 extending from the 10A inlet 13A is inserted into the foam generating chamber 11A, and a suction pipe 55 on the gas-water mixing assembly 52A is connected to an intake pipe 53 for external air; When the motor 51A is operated to draw the water in the aquarium 40 into the foam generating chamber 11A by the suction pipe 55, air is mixed from the water sent from the gas water sending member 54 to generate a large amount of fine bubbles. The bubble carries the protein dirt in the water and rises through the capillary hole 21 of the bubble guiding column discharge portion 20, and discharges into the dirt collecting box 30; the purified water can be discharged from the liquid outlet 14A after defoaming in the foam generating chamber 11A. Return to the aquarium 40, and then follow The. 11A, is continuously withdrawn foam generating chamber and an effect protein soil removal or removal, effective well maintained in the aquarium 40 aqueous water quality.

According to the above embodiment, the present invention can also obtain the effect of decontamination or decontamination of the water in the aquarium by the following implementation; wherein, as shown in FIG. 5, the container body 10B has a a foam generating chamber 11B, a closed gas-water mixing chamber 15 is formed at the bottom of the foam generating chamber 11B, and the gas-water mixing chamber 15 is connected to the outside by a water injection port 13B and a liquid outlet 14B connected to the water outlet conduit, and There is at least one through hole 16 and one liquid return hole 17 between the foam generating chamber 11B and a water-discharging motor 51B for separating the pumping motor type liquid-gas mixing device 50B, and the water-injecting end is connected to the water-filling port 13B and is connected to the water-injecting port 13B. The air pipe 53 is connected to the outside air; the water in the aquarium 40 is taken out by the pumping motor 55B, and the water in the vortex is injected into the gas-water mixing chamber 15 when the air is mixed into the gas-water mixing chamber 15 at the water-injecting end. The air is mixed therein, and a large amount of fine bubbles can be generated from the through-hole 16 to the upper foam generating chamber 11B, and the bubble-carrying water in the water rises through the capillary hole 21 of the bubble guiding portion 20 of the bubble guiding portion 20, and the discharge flows in. The dirt collecting box 30; after the defoaming in the foam generating chamber 11B, the purified water can flow back to the gas-water mixing chamber 15 along the return hole 17, and then discharged from the liquid outlet 14B to the aquarium 40, thereby promoting the water in the cylinder. Cyclical protein removal Clear, 40 reach the aquarium aqueous maintained good water quality.

The above description is intended to be illustrative, and not restrictive, and many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention. , but all will fall within the scope of this creation.

10, 10A, 10B‧‧‧ container body

11, 11A, 11B‧‧‧ bubble generation room

12‧‧‧ Sockets

13‧‧‧Inlet

13A‧‧‧ Receiver

13B‧‧‧Water inlet

14, 14A, 14B‧‧‧ liquid outlet

15‧‧‧ gas-water mixing room

16‧‧‧through hole

17‧‧‧Return hole

20‧‧‧Fouling Department

21‧‧‧Capillary

22‧‧‧ lead

30‧‧‧Stain collection box

31‧‧‧Team

40‧‧‧Aquarium

50, 50A, 50B‧‧‧ pumping motor type liquid-gas mixing device

51, 51A‧‧‧ liquid-gas hybrid motor

51B‧‧‧ pumping motor

52, 52A‧‧‧ gas-water mixing components

53‧‧‧Intake pipe

54‧‧‧Air water delivery

55, 55A‧‧ ‧ water pipes

Figure 1 is a perspective view of the appearance of the creation structure

Figure 2 is a schematic cross-sectional view of the structure of the created fouling part

Figure 3 is a cross-sectional view showing the implementation structure of the integrated pumping type liquid-gas mixing device of the present invention.

Figure 4 is a cross-sectional view showing an embodiment of the present invention using an external water pump type liquid-gas mixing device.

Figure 5 is a cross-sectional view showing the construction structure of a separate pumping motor type liquid-gas mixing device.

10‧‧‧ container body

11‧‧‧Foam generation room

12‧‧‧ Sockets

13‧‧‧Inlet

14‧‧‧liquid outlet

20‧‧‧Fouling Department

21‧‧‧Capillary

22‧‧‧ lead

30‧‧‧Stain collection box

31‧‧‧Team

50‧‧‧Water pump type liquid gas mixing device

51‧‧‧Liquid-gas hybrid motor

52‧‧‧ gas-water mixing components

53‧‧‧Intake pipe

Claims (6)

The utility model relates to an improved afforestation structure of an aquarium protein demister, wherein a container body has a foam generating chamber inside, a foaming portion is arranged at an upper end of the foam generating chamber, and a pumping motor type liquid gas mixing device is arranged at the bottom end, and the A gas permeable dirt collection box is further disposed outside the outlet end of the sewage outlet; the main improvement is that the sewage outlet portion is a porous bubble guiding column, and the axial direction of the cylinder has a plurality of The capillary hole of the dirt collecting box communicates with the foam generating chamber; the water liquid in the water tank of the water tank enters the foam generating chamber of the container body through the operation of the pumping motor type liquid gas mixing device to generate fine bubbles; the fine protein bubbles are used to destroy the protein structure in the water , the small protein or peptide-like dirt that causes the bubble adsorption to be lifted up to the sewage part; when the bubble passes through the capillary hole of the bubble-extracting part of the bubble guiding column, the fine bubbles having buoyancy rise to the capillary hole The position of the entry hole, the weak force of the push caused by the capillary action of the capillary, causing the fine bubbles to successively enter the capillary, and the rising small protein or peptide-like dirt At the outlet of the capillary, as the bubble bursts in the form of bubbling at the outlet, small protein or peptide-like dirt is discharged or exuded from the capillary outlet and collected into the dirt collection box; the overall structure, due to successive entry The rising bubbles in the pores contain only a very small amount of water. Therefore, small proteins or peptides are discharged in a concentrated form, allowing the collection space of the dirt collection box to be collected. Concentrated small protein or peptide-like dirt is stored to prevent the dirt collection work of the dirt collection box from being too frequent; and small protein or peptide-like dirt rises to the outlet with bubbles in the capillary, because there are other The rising bubbles prevent it from flowing back into the aquarium, thus ensuring the effectiveness of protein fouling and thus the efficiency of protein contamination removal. The sewage structure of the aquarium protein demister according to the first aspect of the patent application is improved, wherein the upper end of the container body is formed as a set of interfaces, and the bubble guiding column sewage outlet portion is disposed in the dirt collecting body. Inside the box, and the outer bottom end of the dirt collecting box is formed with a set of joints with respect to the sleeve of the container body; the set of the dirt collecting box is sleeved on the sleeve of the container body to guide the bubble The capillary inlet end of the column fouling portion penetrates into the foam generating chamber of the container body, so that the fine bubbles rising in the foam generating chamber reach the pore entrance, naturally enter the capillary hole, and are accompanied by small protein or peptide-like dirt. Move up to the outlet and collect it by the dirt collection box; only the assembly part of the dirt collection box should be directly removed from the socket of the container body, which can easily carry out the dirt collection box and the capillary hole of the sewage part. Cleaning or cleaning of dirt. The sewage structure of the aquarium protein demister according to the first aspect of the patent application is improved, wherein the bubble guiding column has a plurality of capillary holes corresponding to the dirt collecting box and the foam generating chamber. The inlet end of the capillary hole of the fouling portion of the bubble guiding column is formed with a tab-shaped guiding port; the bubble rising to the upper part of the foam generating chamber can be guided by the guiding port to generate a position toward the inlet of the capillary hole. The effect of getting the bubbles into the capillary pores smoothly. The sewage structure of the aquarium protein demister according to the first aspect of the patent application is improved, wherein the container body has a foam generating chamber, and the body has a liquid inlet and a liquid outlet; The container body is immersed in the aquarium, and a liquid-gas hybrid motor of the pump-type motor-liquid mixing device is disposed in the bottom end of the foam generating chamber, and is connected to the liquid port by a gas-water mixing component on the liquid-gas hybrid motor. And accessing the outside air from an intake pipe; the operation of the liquid-gas hybrid motor to make the water in the aquarium When the liquid is pumped into the foam generating chamber, a large amount of fine bubbles are generated through the gas-water mixing unit, and the air bubbles in the water are carried by the bubbles to rise through the capillary holes of the fouling portion of the bubble guiding column to flow into the dirt collecting box; After defoaming, the purified water can be discharged from the liquid outlet to the aquarium, and then circulated into the foam generating chamber to continuously carry out the function of removing or removing the protein waste, effectively obtaining the good maintenance of the water quality in the aquarium. . The sewage structure of the aquarium protein demister according to the first aspect of the patent application is improved, wherein the container body has a bottom closed foam generating chamber, and the body of the container has a nozzle and a liquid outlet a liquid-liquid hybrid motor of the pump-type motor-type liquid-gas mixing device, which is connected to a gas-water delivery member extending from the gas-water mixing end at the nozzle of the container body into the foam generating chamber, and mixed by gas and water A pumping pipe on the component is connected to an intake pipe to the outside air; and the operation of the liquid-gas hybrid motor causes the water in the aquarium to be sucked into the foam generating chamber by the pumping pipe, and is sent from the gas-water sending member. In the water liquid, air is mixed to generate a large number of fine bubbles, and the air bubbles in the water are carried by the bubbles to rise through the capillary pores of the fouling portion of the bubble guiding column, and flow into the dirt collecting box; It is discharged from the liquid outlet to the aquarium, and then recycled back to the foam generating chamber to continuously carry out the function of removing or removing protein dirt, which effectively obtains the good maintenance of the water quality in the aquarium. The sewage structure of the aquarium protein demister according to claim 1 is improved, wherein the container body has a foam generating chamber, and a closed gas-water mixing chamber is formed at the bottom of the foam generating chamber. The water mixing chamber is connected to the outside by a water injection port and a liquid outlet, and has at least one through hole and one between the foam generating chamber and the foam generating chamber. a liquid returning hole; a pumping motor of the pumping motor type liquid-gas mixing device, the water injection end is connected to the water injection port and an intake pipe is connected to the outside air; and the water in the aquarium is pumped through the pumping water pump When the mixed air is injected into the gas-water mixing chamber at the water injection end, air is mixed in the water flowing through the vortex in the gas-water mixing chamber, and a large number of fine bubbles can be generated from the through-hole to the upper foam generating chamber, and the bubbles are carried in the water. The protein dirt rises through the bubble to guide the capillary hole of the main sewage part into the dirt collecting box; after the foam is used to generate the indoor defoaming, the purified water can flow back to the gas water mixing chamber along the return hole, and then drains back from the liquid outlet to the aquarium In the cylinder, the water in the cylinder is circulated and the protein waste is removed or removed to achieve good maintenance of the water quality in the aquarium.