CN107125184B - Negative pressure fish tank and control system thereof - Google Patents
Negative pressure fish tank and control system thereof Download PDFInfo
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- CN107125184B CN107125184B CN201710512648.0A CN201710512648A CN107125184B CN 107125184 B CN107125184 B CN 107125184B CN 201710512648 A CN201710512648 A CN 201710512648A CN 107125184 B CN107125184 B CN 107125184B
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- 241000251468 Actinopterygii Species 0.000 title claims abstract description 59
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 311
- 238000001514 detection method Methods 0.000 claims abstract description 58
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 42
- 239000001301 oxygen Substances 0.000 claims abstract description 42
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 41
- 239000010865 sewage Substances 0.000 claims abstract description 31
- 238000005086 pumping Methods 0.000 claims description 18
- 239000013589 supplement Substances 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 238000005070 sampling Methods 0.000 claims description 3
- 230000008595 infiltration Effects 0.000 claims description 2
- 238000001764 infiltration Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 11
- 238000007599 discharging Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000003141 lower extremity Anatomy 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000740 bleeding effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/047—Liquid pumps for aquaria
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/06—Control using electricity
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Farming Of Fish And Shellfish (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
Abstract
A negative pressure fish tank and a control system thereof relate to the negative pressure fish tank technology, and the invention comprises: the device comprises a cylinder body, a bottom cylinder, a detection current control system and a detection pressure control system, wherein the detection current control system consists of a detection current control water circulation system and a detection current control air circulation system; the cylinder body comprises a positive pressure part and a negative pressure part, the positive pressure part is provided with an operation opening, a side opening and an overflow groove, a suspended side plate forming the negative pressure part is arranged between the side opening and the negative pressure part, and the bottom cylinder is arranged below the cylinder body; the detection current control water circulation system consists of an upper clear water system, a bottom sewage system and a control circuit; the detection current control air circulation system consists of a main water pump, a negative pressure generator, an exhaust pipe, an air suction nozzle device, a three-in-one aquarium pump, an oxygen supply pump, a bubble bar, an auxiliary air supply device and a monitoring current control circuit. The negative pressure fish tank can be controlled by detecting the pressure.
Description
Technical Field
The invention belongs to the technical field of negative pressure fish tanks, and particularly relates to a negative pressure fish tank and a detection current control system and a detection pressure control system thereof.
Background
In the existing negative pressure fish tank using the negative pressure generator to extract air, the bottom sewage filtration can only use a closed circulation system, and the multipurpose barrel-type equipment such as an excrement separator, a sand tank and the like occupies space due to reasons such as shape, height and the like, and an open circulation system of a dripping cylinder and a bottom cylinder cannot be used; the air circulation system utilizes the negative pressure generator to extract air, only uses the diffuser to intake air, has a single expression form, and cannot use a three-in-one aquarium pump and an oxygen supply pump to intake air; because the diffuser is installed, the water outlet pipe of the bottom cylinder main water pump is required to be provided with the check valve, the spring check valve has high noise, and the non-spring check valve has small back pressure and is sometimes not closed tightly and is easy to leak water; the top air suction nozzle is unreasonable in design and is influenced by fluctuation of the water surface, the actual water level is higher than the lower outlet of the air suction nozzle, a large amount of bubbles flow into the fish tank after the water pump is stopped, and the impact on organisms in the tank body and the tank is large; the air supplement device is not needed, so that the water level change of the operation opening and the top of the fish tank is large. The installation of the check valve, the design of the air suction nozzle is unreasonable, no air supplement device is provided, the oxygen pump cannot be used, and the like, so that the defects are many, and the popularization is difficult.
Disclosure of Invention
The invention aims to solve the technical defects of a negative pressure fish tank using a negative pressure generator to exhaust air, and provides a negative pressure fish tank and a control system thereof.
The invention is realized by the following technical scheme:
the utility model provides a negative pressure fish bowl and control system thereof which characterized in that: negative pressure fish bowl and control system includes: the device comprises a cylinder body, a bottom cylinder, a detection current control system and a detection pressure control system, wherein the detection current control system consists of a detection current control water circulation system and a detection current control air circulation system;
the cylinder body comprises a positive pressure part and a negative pressure part, the positive pressure part is provided with an operation opening, a side opening and an overflow groove, a suspended side plate forming the negative pressure part is arranged between the side opening and the negative pressure part, and the bottom cylinder is arranged below the cylinder body;
the detection current control water circulation system consists of an upper clear water system, a bottom sewage system and a detection current control circuit, wherein the upper clear water system comprises a main water pump, an upper water pipe, a water inlet connector, an overflow groove, a sewer pipe, a clear water drip cylinder and a bottom cylinder, the main water pump is arranged in the bottom cylinder, the clear water drip cylinder is arranged at the upper part of an inner cavity of the bottom cylinder, the water inlet connector is arranged at the upper end of a suspended side plate, and the overflow groove is connected with the sewer pipe to discharge upper clear water into the clear water drip cylinder; the bottom sewage system comprises a bottom water outlet connector, an auxiliary water pump, a water outlet pipe, a sewage dripping cylinder, a bottom cylinder, a main water pump, an upper water pipe and a water inlet connector, wherein one end of the auxiliary water pump is communicated with the bottom water outlet connector arranged on the fish tank bottom plate through a pipeline, the other end of the auxiliary water pump is connected with the water outlet pipe, sewage at the bottom of the fish tank is discharged into the sewage dripping cylinder through the bottom water outlet connector, the auxiliary water pump and the water outlet pipe, and the sewage dripping cylinder is arranged at the upper part of an inner cavity of the bottom cylinder; the detection current control water circulation system controls the upper clear water system and the bottom sewage system to safely operate by a detection current control circuit, namely detects the detection current of the main water pump to control the operation of the auxiliary water pump;
the detection current control air circulation system consists of a main water pump, a negative pressure generator, an exhaust tube, an exhaust nozzle device, a three-in-one aquarium pump, an oxygen supply pump, a bubble bar, an auxiliary air supplement device and a detection current control circuit, wherein a main water pump water outlet installation tee joint is respectively connected with the negative pressure generator and a water supply pipe, the three-in-one aquarium pump is arranged at the side opening of the aquarium and is immersed in water, the auxiliary air supplement device is arranged at the lower end of the side opening suspension side plate, the oxygen supply pump is connected with the bubble bar arranged at the bottom of the aquarium, one end of the exhaust tube is communicated with the negative pressure generator, and the other end of the exhaust tube is communicated with the top air supplement device;
further, the air exhaust nozzle device comprises an air exhaust seat, an air exhaust core, an air exhaust cover and a locking nut, wherein the air exhaust seat is installed at a preset air exhaust hole of the top plate, the air exhaust seat is provided with an internal thread matched with the air exhaust core and an external thread matched with the locking nut, the air exhaust cover is arranged at the lower part of the air exhaust core, a plurality of small holes are formed in the circumferential direction of the bottom surface and the upper part of the side wall of the air exhaust cover, a pagoda joint is arranged at the top of the air exhaust core, the lower outlet of the air exhaust core is arranged in the middle of the air exhaust cover, and the height of the lower outlet of the air exhaust core is the approximate height of the preset water level at the top of the fish tank;
further, the auxiliary air supplement device is a U-shaped pipe, the U-shaped pipe is composed of a short pipe part, a long pipe part and a U-shaped pipe connecting part, the short pipe part is arranged on the outer side of the negative pressure part, the long pipe part is arranged on the inner side of the negative pressure part, and the upper ends of the short pipe part and the long pipe part are provided with reduced openings;
further, the detection current control circuit converts AC large current of the main water pump into small current through a mutual inductor T1, an AC current signal is converted into a voltage signal through a sampling resistor R1, alternating current is converted into direct current through a rectifying circuit, the signal enters a pin 3 of a comparison circuit, a current conversion value is compared with a set value, the high and low of an output pin are controlled, when the voltage of the pin 3 is higher than that of the pin 2, the output of the pin 1 is high, and when the voltage of the pin 2 is higher than that of the pin 3, the output of the pin 1 is low; a pin 1 signal is sent to a b pole of the triode, when the b pole is high, the triode is conducted, and the relay K1 is attracted; b, when the voltage is low, the triode is cut off, the relay K1 does not act, so that the operation of the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump is controlled, the voltage of a pin 2 of the comparison circuit is obtained through the voltage division circuit, a value is set by the voltage division circuit and is given to a pin 2 of the comparison circuit, when the current of the main water pump is set to be 80% or more of the rated current, the relay K1 is attracted, and then the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump are allowed to be powered to operate;
furthermore, the lowest water inlet horizontal line of the water inlet connector is higher than the height of a lower outlet of the air pumping core of the top air pumping device, the height of a short pipe part of the auxiliary air supply device is slightly lower than the height of an overflow plate arranged in the overflow groove and higher than the height of the lower edge of the suspended side plate, the horizontal section of a water outlet pipe of the auxiliary water pump is higher than the low water line of the side opening of the fish tank, and a small hole is formed in the proper position of the water outlet pipe.
Furthermore, the actual flow of the main water pump entering the fish tank through the water inlet joint is larger than the actual flow of the auxiliary water pump discharged through the water outlet pipe, and the air pumping capacity of the negative pressure generator is larger than the total air inlet capacity of the oxygen supply pump and the three-in-one aquarium pump.
Furthermore, the air-pumping core and the auxiliary air supply device are both made of non-infiltration materials.
Furthermore, the pressure detection control system is characterized in that a cross joint is arranged at the water outlet of the main water pump and is respectively connected with the negative pressure generator, the electric contact pressure gauge and the water feeding pipe;
when the pressure of the water outlet of the main water pump reaches more than 90% of rated pressure, an internal relay K2 of an electric contact pressure gauge is electrified, a normally open electric contact of K2 is closed, an external control relay KM is electrified, an electric contact KM1 is self-protected, a KM2 is closed, the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump are allowed to operate, switches K5, K4 and K3 are closed, the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump are respectively switched on, and at the moment, the negative pressure generator works normally and the fish tank operates normally; when main water pump delivery port pressure dropped to rated pressure below 80%, the inside relay K1 of electric contact pressure gauge got electric, K2 disconnection, and K1's normally closed contact is opened, and external control relay KM loses the electricity, and KM2 normally open contact is opened, vice water pump, oxygen supply pump, trinity shui nationality pump all cut off the power supply, in time close vice water pump, oxygen supply pump, trinity shui nationality pump guarantee that the end jar does not overflow.
Compared with the prior art, the invention has the following advantages and beneficial effects:
the bottom sewage cylinder type filtration is removed, the bottom cylinder can be made larger by fully utilizing the space of the floor cabinet, the filtration effect is enhanced, the equipment is simpler, and the bottom cylinder and the drip cylinder are more convenient to maintain;
the single air inlet mode of the diffuser is changed into air inlet of a three-in-one aquarium pump and an oxygen supply pump, the air inlet part and the air outlet mode of the three-in-one aquarium pump in the fish tank are very similar to those of the diffuser, the oxygen supply pump is used for discharging air at the bottom of the fish tank and has various modes such as a sand head, a bubble strip and the like, so the air inlet mode is more excellent;
the optimized design of the air suction nozzle device adds the auxiliary air supplement device, so that when the pump is stopped and the power is cut off, the water level changes of the inner cylinder and the bottom cylinder are not large, the phenomenon that a large amount of bubbles flow into the fish tank can not occur, and the cylinder body and the organisms in the cylinder are not impacted and are more stable;
the check valve can be removed by removing the diffuser, a fault point is eliminated, and safety is guaranteed, so that popularization is facilitated.
The invention can also control the negative pressure fish bowl by detecting the pressure, connect 4 to connect on the main water pump outlet pipe, one side connects the negative pressure generator, one side connects the electric contact pressure gauge, the electric contact pressure gauge can set up the magnitude of the high-low pressure operating pressure, when making the water pump reach above 90% of the rated pressure, the auxiliary water pump, oxygen supply pump, trinity aquarium pump can be powered on and operated; when the pressure is reduced to be below 80 percent of the rated pressure, the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump are not allowed to operate, the flow of the main water pump is ensured to be larger than that of the auxiliary water pump, and the bottom cylinder does not overflow; the air exhaust capacity is larger than the air intake capacity, the negative pressure water level does not drop, and the risk of water overflow is avoided.
Drawings
FIG. 1 is a schematic view of a negative pressure fish tank using a current detection control system;
FIG. 2 is a top view of FIG. 1;
FIG. 3 is a schematic view of a negative pressure fish tank using a pressure detection control system;
FIG. 4 is a schematic view of the structure of the suction nozzle arrangement;
FIG. 5 is a schematic view of the auxiliary air supply device;
FIG. 6 is a schematic diagram of a control system for sensing current;
fig. 7 is a circuit diagram of a pressure detection control system.
Wherein: 1-cylinder body, 2-bottom cylinder, 3-operation opening, 4-side opening, 5-overflow groove, 6-suspended side plate, 7-main water pump, 8-water feeding pipe, 9-water inlet joint, 10-water discharging pipe, 11-clear water dripping cylinder, 12-bottom water outlet joint, 13-auxiliary water pump, 14-water discharging pipe, 15-sewage dripping cylinder, 16-negative pressure generator, 17-air pumping pipe, 18-air pumping nozzle device, 18.1-air pumping seat, 18.2-air pumping core, 18.3-air pumping cover, 18.4-locking nut, 18.3.1-small hole, 18.2.1-pagoda joint, 19-three-in-one aquarium pump, 20-oxygen supply pump, 21-air bubble bar, 22-auxiliary air supply device, 22.1-short pipe part, 22.2-long pipe part, 22.3-U-shaped pipe connecting part, 23-tee joint, 24-electric contact pressure gauge and 25-cross joint.
Detailed Description
The technical scheme of the invention is clearly and completely described by the following embodiments.
As shown in fig. 1 and 2, a negative pressure fish tank and a control system thereof comprise: the device comprises a cylinder body 1, a bottom cylinder 2, a detection current control system and a detection pressure control system, wherein the detection current control system consists of a detection current control water circulation system and a detection current control air circulation system;
the cylinder block 1 includes: the device comprises a positive pressure part and a negative pressure part, wherein the positive pressure part is provided with an operation opening 3, a side opening 4 and an overflow groove 5, a suspended side plate 6 forming the negative pressure part is arranged between the side opening 4 and the negative pressure part, and the bottom cylinder 2 is arranged below a cylinder body 1;
the detection current control water circulation system consists of an upper clear water system, a bottom sewage system and a detection current control circuit, wherein the upper clear water system comprises a main water pump 7, an upper water pipe 8, a water inlet connector 9, an overflow groove 5, a lower water pipe 10, a clear water dripping cylinder 11 and a bottom cylinder 2, the main water pump 7 is arranged in the bottom cylinder 2, the clear water dripping cylinder 11 is arranged at the upper part of an inner cavity of the bottom cylinder 2, the water inlet connector 9 is arranged at the upper end of a suspended side plate 6, and the overflow groove 5 is connected with the lower water pipe 10 to discharge upper clear water into the clear water dripping cylinder 11; the bottom sewage system comprises a bottom water outlet connector 12, an auxiliary water pump 13, a water outlet pipe 14, a sewage dripping cylinder 15, a bottom cylinder 2, a main water pump 7, a water feeding pipe 8 and a water inlet connector 9, one end of the auxiliary water pump 13 is communicated with the bottom water outlet connector 12 arranged on the fish tank bottom plate through a pipeline, the other end of the auxiliary water pump is connected with the water outlet pipe 14, sewage at the bottom of the fish tank is discharged into the sewage dripping cylinder 15 through the bottom water outlet connector 12, the auxiliary water pump 13 and the water outlet pipe 14, and the sewage dripping cylinder 15 is arranged at the upper part of an inner cavity of the bottom cylinder 2;
the detection current control water circulation system controls the upper clear water system and the bottom sewage system to safely operate by a detection current control circuit, namely, the detection current of the detection main water pump 7 controls the operation of the auxiliary water pump 13;
the detection current control air circulation system consists of a main water pump 7, a negative pressure generator 16, an exhaust pipe 17, an air suction nozzle device 18, a three-in-one aquarium pump 19, an oxygen supply pump 20, a bubble bar 21, an auxiliary air supply device 22 and a detection current control circuit, wherein a tee 23 for installing the water outlet of the main water pump 7 is respectively connected with the negative pressure generator 16 and a water supply pipe 8, the three-in-one aquarium pump 19 is arranged at the side opening 4 of the aquarium and is immersed in the water, the auxiliary air supply device 22 is arranged at the lower end of the suspended side plate 6 of the side opening 4, the oxygen supply pump 20 is connected with the bubble bar 21 arranged at the bottom of the aquarium, one end of the exhaust pipe 17 is communicated with the negative pressure generator 16, and the other end of the exhaust pipe 17 is communicated with the top air suction device 18;
the actual flow rate of the main water pump 7 entering the fish tank through the water inlet joint 9 is larger than the actual flow rate of the auxiliary water pump 13 discharged through the water outlet pipe 14, and the air suction capacity of the negative pressure generator 16 is larger than the total air inlet capacity of the oxygen supply pump 20 and the three-in-one aquarium pump 19.
The lowest water inlet horizontal line of the water inlet joint 9 is higher than the height of the lower outlet of the air exhaust core 18.2 of the air exhaust nozzle device 18, the short pipe part 22.1 of the auxiliary air supply device 22 is slightly lower than the height of an overflow plate arranged in the overflow groove 5 and higher than the height of the lower edge of the suspended side plate 6, the horizontal section of the water outlet pipe 14 of the auxiliary water pump 13 is higher than the low water level line of the fish tank side opening 4, and a small hole is formed in the proper position of the water outlet pipe 14.
As shown in fig. 4, the air extracting nozzle device 18 is composed of an air extracting seat 18.1, an air extracting core 18.2, an air extracting cover 18.3 and a locking nut 18.4, the air extracting seat 18.1 is installed at a preset air extracting hole on the top plate, the air extracting seat 18.1 is provided with an internal thread matched with the air extracting core 18.2 and an external thread matched with the locking nut 18.4, the air extracting cover 18.3 is arranged at the lower part of the air extracting core 18.2, a plurality of small holes 18.3.1 are arranged in the circumferential direction of the bottom surface and the upper part of the side wall of the air extracting cover 18.3, the top of the air extracting core 18.2 is provided with a pagoda joint 18.2.1, the lower outlet of the air extracting core 18.2 is arranged at the middle part of the air extracting cover 18.3, and the height of the lower outlet of the air extracting core 18.2 is about the preset water level at the top of the fish tank;
as shown in fig. 5, the auxiliary air supplement device 22 is a U-shaped tube, the U-shaped tube is composed of a short tube part 22.1, a long tube part 22.2 and a U-shaped tube connecting part 22.3, the short tube part 22.1 is arranged outside the negative pressure part, the long tube part 22.2 is arranged inside the negative pressure part, and the upper ends of the short tube part 22.1 and the long tube part 22.2 are provided with a reduced opening;
as shown in fig. 4 and 5, the air-extracting core 18.2 and the auxiliary air supplement device 22 are both made of non-wetting materials.
As shown in fig. 6, the detection current control circuit converts an AC large current of the main water pump 7 into a small current by a transformer T1, converts an AC current signal into a voltage signal by a sampling resistor R1, converts an AC current into a dc current by a rectifying circuit, and sends the signal to a comparator circuit pin 3, and the current conversion value is compared with a set value to control the high and low of an output pin, wherein when the voltage of the pin 3 is higher than that of the pin 2, the output of the pin 1 is high, and when the voltage of the pin 2 is higher than that of the pin 3, the output of the pin 1 is low; a pin 1 signal is sent to a b pole of the triode, when the b pole is high, the triode is conducted, and the relay K1 is attracted; b is when very low, the triode is stopped, relay K1 does not move to control the operation of auxiliary water pump 13, oxygen supply pump 20, trinity aquarium pump 19, 2 foot voltages of comparator circuit obtain through bleeder circuit, bleeder circuit sets for a value, gives comparator circuit 2 foot, sets for when main water pump 7 electric current reaches 80% of rated current and above, relay K1 actuation, then auxiliary water pump 13, oxygen supply pump 20, trinity aquarium pump 19 all allow to get the electricity operation.
As shown in figure 3, a negative pressure fish tank adopting a pressure detection control system is characterized in that a four-way 25 is arranged at the water outlet of a main water pump 7 and is respectively connected with a negative pressure generator 16, an electric contact pressure gauge 24 and a water supply pipe 8, and other structures are described with reference to figures 1 and 2.
As shown in fig. 7, when the pressure at the water outlet of the main water pump 7 stably reaches more than 90% of the rated pressure, the relay K2 inside the electric contact pressure gauge 24 is powered on, the normally open electric contact of the K2 is closed, the external control relay KM is powered on, the electric contact KM1 is self-protecting, the KM2 is closed, the auxiliary water pump 13, the oxygen supply pump 20 and the three-in-one aquarium pump 19 are allowed to operate, the switches K5, K4 and K3 are closed to respectively switch on the auxiliary water pump 13, the oxygen supply pump 20 and the three-in-one aquarium pump 19, and at the moment, the negative pressure generator 16 works normally, meets the requirement that the air suction capacity is larger than the air intake capacity, and the aquarium operates normally; when the pressure of the water outlet of the main water pump 7 is reduced to below 80 percent of rated pressure, a relay K1 in an electric contact pressure gauge 24 is powered on, a relay K2 is disconnected, a normally closed contact of K1 is opened, an external control relay KM is powered off, a normally open contact of KM2 is opened, and the auxiliary water pump 13, the oxygen supply pump 20 and the three-in-one aquarium pump 19 are all powered off; when the pressure of the fault outlet of the main water pump 7 is insufficient, the air suction capacity of the negative pressure generator 16 is reduced, and the auxiliary water pump 13, the oxygen supply pump 20 and the three-in-one aquarium pump 19 are closed in time at the moment, so that the flow of the main water pump 7 is ensured to be larger than that of the auxiliary water pump 13, and the bottom tank does not overflow; the air exhaust capacity is larger than the air intake capacity, the negative pressure water level does not drop, and the risk of water overflow is avoided.
The working process and principle of the invention are as follows:
when the main water pump 7 is operated and the auxiliary water pump 13 is closed, the main water pump 7 in the water circulation system feeds water into the fish tank through the upper water pipe 8 and the water inlet joint 9 arranged at the upper end of the suspended side plate 6, and overflow water in the overflow groove 5 enters the clear water dripping cylinder 11 through the lower water pipe 10 arranged at the bottom surface of the overflow groove and finally flows into the bottom cylinder 2;
when the detection current is not controlled, the auxiliary water pump 13 is operated, the main water pump 7 is closed, sewage enters the sewage dripping cylinder through the bottom water outlet joint 12, the auxiliary water pump 13 and the water outlet pipe 14 and then enters the bottom cylinder 2, and as a result, the bottom cylinder 2 overflows.
A detection current control water circulation system is characterized in that when a main water pump 7 is set to reach 90% or more of rated current, an auxiliary water pump 13 is allowed to run by power, when the main water pump 7 and the auxiliary water pump 13 run, the actual flow of the main water pump 7 entering a fish tank through a water inlet joint 9 is larger than the actual flow of the auxiliary water pump 13 discharged through a water outlet pipe 14, water fed by the main water pump 7 enters a tank body 1, one part of water enters a bottom tank 2 through an overflow groove 5, one part of water enters the bottom tank 2 through the auxiliary water pump 13 in a shunting manner, the operation is stable, when various fault conditions such as insufficient current at a water inlet of the main water pump 7, overcurrent overload, rotor blockage, wire end virtual connection, power failure and the like are met, the auxiliary water pump 13 cannot run, and the fish tank is ensured not to overflow.
A negative pressure generating device 16 in the detection current control air circulation system is connected with an air suction nozzle device 18 through an air suction pipe 17 for air suction; the three-in-one aquarium pump 19, the oxygen supply pump 20, the bubble bar 21 and the auxiliary air supply device 22 supply air;
the oxygen supply pump 20 and the three-in-one aquarium pump 19 can adjust the air input, in order to increase the ornamental value and the popular science, the timer is respectively used for setting the oxygen supply pump 20 and the three-in-one aquarium pump 19 to intake air in stages, as a result, the air input is uneven, in order to ensure that the aquarium does not overflow, the total air intake capacity is smaller than the air suction capacity of the negative pressure generator 16, but the air input in a certain period is not always smaller than the air suction capacity. When the air-water separator normally operates, the negative pressure generator 16 is used for extracting 3 conditions of air, water or mixed water and air, if the air inlet capacity is smaller than the air extraction capacity but air must be introduced, the mixed water and air are extracted from the air extraction pipe 17, if air does not enter for a long time, water is extracted from the air extraction pipe 17, and because the internal fluctuation of the air extraction cover 18.3 is very small, the high water level is slightly higher than the lower outlet of the air extraction core 18.2.
The influence of the water feeding pipe 8 is considered in the process, the water pump stops running, the water level in the water feeding pipe 8 is reduced due to the fact that the check valve is removed, the pressure and the top negative pressure are balanced, the lowest water inlet horizontal line of the water inlet joint 9 is higher than the height of the lower outlet of the air pumping core 18.2 of the air pumping nozzle device 18, the top water cannot return into the water feeding pipe 8, and as a result, the top water level slightly rises.
When power failure or water pump damage, oxygen pump 20, trinity aquarium pump 19 all stop, and the actual water level in fish bowl top roughly divides 3 with the inside situation of exhaust tube 17: (1) the water level is lower than the lower outlet of the air extraction core 18.2, and air is filled in the air extraction pipe 17; (2) the water level is approximately equal to the lower outlet of the air extraction core 18.2, and the air-water mixture is arranged in the air extraction pipe 7; (3) the water level is slightly higher than the lower outlet of the air extraction core 18.2, and water is in the air extraction pipe 7.
In the above (1), the rising height of the water in the bottom cylinder 2 through the exhaust pipe 17 is equal to the water level of the negative pressure part in the cylinder body 1, the water level and the negative pressure part in the cylinder body 1 are balanced, the high water level at the top of the cylinder body 1 and the low water level of the operation port 3 are not changed greatly, and the auxiliary air supplement device 22 does not work under the condition.
In the step (3), the top high water level is slightly higher than the lower outlet of the air pumping core 18.2, water is in the air pumping pipe 7, the water pressure in the air pumping pipe 7 is higher than the water pressure of the negative pressure part in the cylinder body 1, and as a result, the water flow in the air pumping pipe 7 goes downwards, so that the water levels of the operation opening 3 and the side opening 4 start to fall.
Do not install supplementary air supplement unit 22, side opening 4 water level descends to being less than 2 lower limb of unsettled curb plate, this process can last for a long time, later have a large amount of air to gush into the fish bowl through operation mouth 3 or side opening 4 inside, it is export under 18.2 to descend less than the core of bleeding when the top water level descends, air admission exhaust tube 7 makes inside water pressure and 1 top negative pressure balance of cylinder body, operation mouth 3 simultaneously, side opening 4 rises in 2 lower limb of unsettled curb plate on the water level, the water is stable gradually. The positive pressure water level and the top negative pressure water level of the operation opening 3 change greatly, the scene of a large amount of air gushing is unacceptable, the fluctuating water surface can be calmed down for a long time, and particularly, the water level of the bottom cylinder 2 rises a lot, so that the overflow risk exists.
The auxiliary air supplement device 22 is arranged at the lower edge of the suspended side plate 6, the short pipe part 22.1 is slightly lower than the overflow plate, is made of non-wetting material and has the characteristics of thin pipe diameter, small necking and the like, and the surface tension of water is added, the inside of the U-shaped pipe is almost air but not water, the outside of the outlet of the long pipe part 22.2 of the U-shaped pipe is negative pressure, when the water levels of the operation opening 3 and the side opening 4 are reduced to expose the short pipe part 22.1 of the U-shaped pipe, the inside of the U-shaped pipe is communicated with the atmosphere, air enters the negative pressure cylinder body through the short pipe part 22.1 of the U-shaped pipe, the water level at the top of the fish tank is reduced, the pressure is balanced with the negative pressure at the top of the cylinder body 1 after the water level in the exhaust pipe 7 is reduced, the lower outlet of the exhaust core 18.2 of the exhaust nozzle device 18 is separated from the water surface, meanwhile, the water level outside the operation port 3 and the side port 4 rises to submerge the short pipe part 22.1 of the U-shaped pipe, the short pipe part 22.1 does not enter air, and the water body of the fish tank is in a stable state.
The height of the short pipe part 22.1 of the auxiliary air supply device 22 is much higher than the lower edge of the suspended side plate 6, so that the large impact caused by the fact that the air fluctuating on the water surface flows into the fish tank when rockery is arranged and fish is fished through the operation opening 3 is avoided.
The above case (2) is between the cases (1) and (3), and will not be discussed.
The detection current controls the air circulation system, when the main water pump 7 is set to reach the rated current of 90% or above, the oxygen supply pump 20 and the three-in-one aquarium pump 19 are allowed to be powered on to operate, otherwise, locking is realized, air can not be supplied, and the fish tank is ensured not to overflow.
The horizontal section of outlet pipe 14 is higher than the low water level line of fish bowl side opening 4, otherwise when auxiliary water pump 13 stopped, bottom sewage still flowed in the sewage drip jar through outlet pipe 14, opens the aperture in outlet pipe 14 suitable position, when auxiliary water pump 13 stopped, inhaleed the air from the aperture under the sewage action of gravity in the water pipe, and intraductal sewage partly returns the cylinder body bottom, and partly gets into the drip jar, and the effect of aperture is the instant cutout, reduces the influence to the fish bowl water level, and the water level is more steady.
The negative pressure fish tank can be controlled by detecting the pressure, the water outlet pipe of the main water pump is connected with a 4-way valve, and an electric contact pressure gauge is additionally arranged and can be used for setting the magnitude of high-low pressure action pressure, so that when the water pump reaches more than 90% of rated pressure, the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump can be powered on to operate; when the pressure is reduced to be below 80 percent of the rated pressure, the auxiliary water pump, the oxygen supply pump and the three-in-one aquarium pump are not allowed to operate.
Claims (6)
1. The utility model provides a control system of negative pressure fish bowl which characterized in that: the control system of negative pressure fish bowl includes: the device comprises a cylinder body (1), a bottom cylinder (2), a detection current control system and a detection pressure control system, wherein the detection current control system consists of a detection current control water circulation system and a detection current control air circulation system;
the cylinder body (1) comprises a positive pressure part and a negative pressure part, the positive pressure part is provided with an operation port (3), a side opening (4) and an overflow groove (5), a suspended side plate (6) forming the negative pressure part is arranged between the side opening (4) and the negative pressure part, and the bottom cylinder (2) is arranged below the cylinder body (1);
the detection current control water circulation system consists of an upper clear water system, a bottom sewage system and a detection current control circuit, wherein the upper clear water system comprises a main water pump (7), an upper water pipe (8), a water inlet connector (9), an overflow groove (5), a sewer pipe (10), a clear water dripping cylinder (11) and a bottom cylinder (2), the main water pump (7) is arranged in the bottom cylinder (2), the clear water dripping cylinder (11) is arranged at the upper part of the inner cavity of the bottom cylinder (2), the water inlet connector (9) is arranged at the upper end of a suspended side plate (6), and the overflow groove (5) is connected with the sewer pipe (10) to discharge upper clear water into the clear water dripping cylinder (11); the bottom sewage system comprises a bottom water outlet connector (12), an auxiliary water pump (13), a water outlet pipe (14), a sewage dripping cylinder (15), a bottom cylinder (2), a main water pump (7), an upper water pipe (8) and a water inlet connector (9), one end of the auxiliary water pump (13) is communicated with the bottom water outlet connector (12) arranged on the bottom plate of the fish tank through a pipeline, the other end of the auxiliary water pump is connected with the water outlet pipe (14), sewage at the bottom of the fish tank is discharged into the sewage dripping cylinder (15) through the bottom water outlet connector (12), the auxiliary water pump (13) and the water outlet pipe (14), and the sewage dripping cylinder (15) is arranged at the upper part of an inner cavity of the bottom cylinder (2); the detection current control water circulation system controls the upper clear water system and the bottom sewage system to safely operate by a detection current control circuit, namely, a main water pump (7) is used for detecting current to control an auxiliary water pump (13) to operate;
the detection current control air circulation system is composed of a main water pump (7), a negative pressure generator (16), an exhaust pipe (17), an air suction nozzle device (18), a three-in-one aquarium pump (19), an oxygen supply pump (20), a bubble bar (21), an auxiliary air supply device (22) and a detection current control circuit, wherein the main water pump (7) is provided with a water outlet installation tee joint (23) which is respectively connected with the negative pressure generator (16) and a water supply pipe (8), the three-in-one aquarium pump (19) is arranged at the side opening (4) of the aquarium and is immersed in water, the auxiliary air supply device (22) is arranged at the lower end of the side opening (4) of a suspension side plate (6), the oxygen supply pump (20) is connected with the bubble bar (21) arranged at the bottom of the aquarium, one end of the exhaust pipe (17) is communicated with the negative pressure generator (16), and the other end of the exhaust pipe (17) is communicated with the top air suction device (18);
the fish tank air suction nozzle device (18) comprises an air suction seat (18.1), an air suction core (18.2), an air suction cover (18.3) and a locking nut (18.4), wherein the air suction seat (18.1) is arranged at an air suction hole preset on a top plate, the air suction seat (18.1) is provided with an internal thread matched with the air suction core (18.2) and an external thread matched with the locking nut (18.4), the air suction cover (18.3) is arranged at the lower part of the air suction core (18.2), a plurality of small holes (18.3.1) are formed in the circumferential directions of the bottom surface and the upper part of the side wall of the air suction cover (18.3), the top of the air suction core (18.2) is provided with a pagoda joint (18.2.1), the lower outlet of the air suction core (18.2) is arranged in the middle of the air suction cover (18.3), and the height of the lower outlet of the air suction core (18.2) is the preset top water level height of the fish tank;
the detection current control circuit converts AC large current of a main water pump (7) into small current through a mutual inductor T1, a sampling resistor R1 converts an AC current signal into a voltage signal, a rectifying circuit converts alternating current into direct current, the signal enters a pin 3 of a comparison circuit, a current conversion value is compared with a set value, the high and low of an output pin are controlled, when the voltage of the pin 3 is higher than that of the pin 2, the output of the pin 1 is high, and when the voltage of the pin 2 is higher than that of the pin 3, the output of the pin 1 is low; a pin 1 signal is sent to a b pole of the triode, when the b pole is high, the triode is conducted, and the relay K1 is attracted; b is when very low, the triode is cut off, the relay K1 does not act, thus control the operation of the auxiliary water pump (13), oxygen pump (20), trinity aquarium pump (19), 2 foot voltage of the comparator circuit is got through the bleeder circuit, the bleeder circuit sets for a value, give 2 foot of comparator circuit, set for the main water pump (7) the electric current reaches 80% and above of the rated current, the actuation of relay K1, then the auxiliary water pump (13), oxygen pump (20), trinity aquarium pump (19) are all allowed to get the electricity and operated;
the detection pressure control system is characterized in that a four-way joint (25) is arranged at the water outlet of the main water pump (7) and is respectively connected with the negative pressure generator (16), the electric contact pressure gauge (24) and the water feeding pipe (8);
when the pressure of the water outlet of the main water pump (7) reaches more than 90% of rated pressure, an electric contact pressure gauge (24) is powered on by an internal relay K2, a normally open electric shock of K2 is closed, an external control relay KM is powered on, an electric shock KM1 is self-protected, a KM2 is closed, the auxiliary water pump (13), the oxygen supply pump (20) and the three-in-one aquarium pump (19) are allowed to run, switches K5, K4 and K3 are closed, the auxiliary water pump (13), the oxygen supply pump (20) and the three-in-one aquarium pump (19) are respectively switched on, and at the moment, the negative pressure generator (16) works normally and the aquarium runs normally; main water pump (7) delivery port pressure drops to when rated pressure below 80%, and electric contact pressure gauge (24) internal relay K1 gets electric, K2 disconnection, and K1's normally closed contact is opened, and external control relay KM loses the electricity, and KM2 normally open contact is opened, vice water pump (13), oxygen suppliment pump (20), trinity shui nationality pump (19) all cut off the power supply, in time close vice water pump (13), oxygen suppliment pump (20), trinity shui nationality pump (19) ensure that the end jar does not overflow.
2. The control system of the negative pressure fish tank as claimed in claim 1, wherein: the auxiliary air supply device (22) is a U-shaped pipe, the U-shaped pipe is composed of a short pipe part (22.1), a long pipe part (22.2) and a U-shaped pipe connecting part (22.3), the short pipe part (22.1) is arranged on the outer side of the negative pressure part, the long pipe part (22.2) is arranged on the inner side of the negative pressure part, and the upper ends of the short pipe part (22.1) and the long pipe part (22.2) are provided with reduced openings.
3. The control system of the negative pressure fish tank as claimed in claim 1, wherein: the lowest level of water inlet of the water inlet joint (9) is higher than the height of the lower outlet of the air pumping core (18.2) of the top air pumping device (18).
4. The control system of the negative pressure fish tank as claimed in claim 1 or 2, wherein: the height of a short pipe part (22.1) of the auxiliary air supply device (22) is slightly lower than the height of an overflow plate arranged in the overflow groove (5) and higher than the height of the lower edge of the suspended side plate (6), the horizontal section of a water outlet pipe (14) of the auxiliary water pump (13) is higher than the low water level of the side opening (4) of the fish tank, and a small hole is formed in the proper position of the water outlet pipe (14).
5. The control system of the negative pressure fish tank as claimed in claim 1, wherein: the actual flow of the main water pump (7) entering the fish tank through the water inlet joint (9) is larger than the actual flow of the auxiliary water pump (13) discharged through the water outlet pipe (14), and the air pumping capacity of the negative pressure generator (16) is larger than the total air inlet capacity of the oxygen supply pump (20) and the three-in-one aquarium pump (19).
6. The control system of the negative pressure fish tank as claimed in claim 1, wherein: the air exhaust core (18.2) and the auxiliary air supplement device (22) are both made of non-infiltration materials.
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| CN107646778B (en) * | 2017-11-14 | 2022-06-14 | 北京孤岛科技有限公司 | Negative pressure fish tank with periphery ornamental function |
| CN109258544B (en) * | 2018-09-07 | 2023-11-17 | 姜利 | Automatic pollution discharge water changing fish tank and control method thereof |
| CN109169486A (en) * | 2018-10-13 | 2019-01-11 | 中山市创星电器有限公司 | A kind of drip filtration system of aquarium and its method for controlling water level |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2431106A1 (en) * | 2002-06-05 | 2003-12-05 | Aquatic Technologies | Electrolytic treatment of aqueous media |
| CN103098745A (en) * | 2012-12-11 | 2013-05-15 | 王华广 | Filtering and circulation device of fish tank |
| CN203262034U (en) * | 2013-03-26 | 2013-11-06 | 张泽民 | Negative-pressure fish tank provided with multifunctional aquarium pump |
| CN104285876A (en) * | 2014-09-24 | 2015-01-21 | 张家港市华申锦洲机械制造有限公司 | Aquaculture oxygenation system |
| EP2876893A1 (en) * | 2013-11-22 | 2015-05-27 | Growthment Technology Co., Ltd. | Cloud-based monitoring apparatus |
| CN105210971A (en) * | 2015-10-12 | 2016-01-06 | 张泽民 | The negative pressure fish jar of internal overflow vacuum pump less |
| CN205962377U (en) * | 2016-05-27 | 2017-02-22 | 张泽民 | Large -scale negative pressure fish bowl of vwatching |
-
2017
- 2017-06-29 CN CN201710512648.0A patent/CN107125184B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2431106A1 (en) * | 2002-06-05 | 2003-12-05 | Aquatic Technologies | Electrolytic treatment of aqueous media |
| CN103098745A (en) * | 2012-12-11 | 2013-05-15 | 王华广 | Filtering and circulation device of fish tank |
| CN203262034U (en) * | 2013-03-26 | 2013-11-06 | 张泽民 | Negative-pressure fish tank provided with multifunctional aquarium pump |
| EP2876893A1 (en) * | 2013-11-22 | 2015-05-27 | Growthment Technology Co., Ltd. | Cloud-based monitoring apparatus |
| CN104285876A (en) * | 2014-09-24 | 2015-01-21 | 张家港市华申锦洲机械制造有限公司 | Aquaculture oxygenation system |
| CN105210971A (en) * | 2015-10-12 | 2016-01-06 | 张泽民 | The negative pressure fish jar of internal overflow vacuum pump less |
| CN205962377U (en) * | 2016-05-27 | 2017-02-22 | 张泽民 | Large -scale negative pressure fish bowl of vwatching |
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