CN87104408A - Plastic centrifugal submersible fish pump - Google Patents
Plastic centrifugal submersible fish pump Download PDFInfo
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- CN87104408A CN87104408A CN 87104408 CN87104408A CN87104408A CN 87104408 A CN87104408 A CN 87104408A CN 87104408 CN87104408 CN 87104408 CN 87104408 A CN87104408 A CN 87104408A CN 87104408 A CN87104408 A CN 87104408A
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- impeller
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- fish
- pump case
- fish pump
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Abstract
The present invention is a kind of centrifugal transh pump, is applicable to that rising of catches and other similar bulk solids granule materials unload conveying.This centrifugal submersible fish pump mainly is made up of the pump case of wide flow passage impeller of double-leaf and semi-scroll shelly, and impeller is by the oil motor hydraulic driving.In order to make impeller operation steady, improve the transmission shaft stressing conditions, impeller adopts simple beam structure.The fish pump main parts size is all made by plastics or glass fibre reinforced plastic material.The ratio of the external diameter of suitable impeller and impeller outlet width makes fish pump that good passing ability not only be arranged and has higher hydraulic efficiency.
Description
Plastic centrifugal submersible fish pump of the present invention belongs to the fishery machinery category, is applicable to that rising of catches unload conveying, also can be used for other industry and rise to unload and carry fruit, vegetables, papermaking raw material and other similar bulk solids granule materials.
Known centrifugal fishpump (as Soviet Union patent of invention SU595538), impeller all adopts cantilever beam structure.In order not damage the fish body, the impeller of fish pump generally all is designed to wide runner, and the impeller of this wide flow passage structure unavoidably can vibrate in the running, galloping.The pump housing all adopts circular shell basically.The centrifugal fishpump of SU595538 in order to reduce the damage ratio of fish body when unloading the conveying catches for extensive, is designed to the pressure jet pipe to intersect with the annular exit tangent, and the input section of pressure jet pipe is rectangular, and direct and annular exit fuses.But the hydraulic efficiency of ring-type pump housing pump is lower.Critical pieces such as impeller are made with aluminum alloy, have increased the damage ratio of fish body in aspiration procedure.
It is steady to the objective of the invention is to develop a kind of running, and passing ability is good, and fish body damage ratio is low, and hydraulic efficiency is than higher in light weight, corrosion resistant diving fishpump.
This centrifugal diving fishpump is by the oil motor hydraulic driving, drives the fish pump clingfish of drawing water in the console controlled hydraulic system.In order not damage the fish body, impeller design becomes wide flow passage impeller, produces vibration in the running for fear of impeller simultaneously, and impeller design becomes simple beam structure.Be the fish pump impeller an end directly with oil motor on the transmission shaft that stretches out be connected with key, the other end is then by sliding supported condition, form sliding bearing pair by being fixed on sliding axle carrier ring on the pump case inlet inner edge and the impeller port ring that is fixed on the cylindrical of impeller eye top exactly, like this, impeller makes running simple beam structure quite stably into by cantilever beam structure.The pump housing adopts the semi spiral case housing, the housing of general centrifugal pump in the form of a ring or scroll casing shape, the former is in order to reduce the fish damage, the latter is in order to improve fish pump efficient, yet the housing cut water is to cause one of key that the fish body causes injury.This invention changes the cut water of pump and is circular arc, and the first transverse section broad of housing can make the maximum fish body of being inhaled pass through smoothly.Form the semi-scroll shape pump case of the tangential outlet of wide runner.The pump housing adopts plastics or glass fibre reinforced plastics to make, fish pump weight is descended at double and also in aspiration procedure fish body collsion damage rate collision on metal body for little.In order to increase the intensity of pump case and fastening piece connection place, all use metal to be fixedly arranged in as embedded component in plastics or the glass fibre reinforced plastics in screw bearing, some grooves are respectively arranged on the circumferential surface of cylindrical body embedded component in length and breadth.The suction port of pump case is the big chamfering of circular arc, forms a streamlined suction round mouth with impeller eye.Lift, the flow of the size impact fish pump of fish pump impeller, the efficient that how much influences fish pump of impeller type, blade and fish loss rate etc.Centrifugal fish pump generally all is low lift, big flow, all is wide runner for reducing fish loss rate impeller, and reduced makes its specific speed η
SThe hydraulic efficiency of the better fish pump of the passing ability of fish increases to the limiting value of centrifugal pump, though will reduce significantly like this.Plastics fish pump of the present invention is the one pole centrifugal pump, and impeller is the double leaf chip, specific speed η
SNear the higher extreme value of centrifugal pump, impeller outer diameter is not less than 2.6 in the ratio of impeller outlet width, and fish pump is still keeping on the good passing ability basis like this, and hydraulic efficiency is comparatively desirable.Be the intensity of reinforced plastic impeller,, some the grooves that intersect in length and breadth arranged on the cylinder surface of impeller core wheel at the embedded impeller core wheel of impeller and oil motor transmission shaft joint.Be the streamlined impeller cap that connects with impeller channel, by screw on the impeller core wheel.At fish pump suction port underlying grille once, be fixed on the housing.The gap of following grille is corresponding with fish pump suction port size.Protect outside blocking greater than the fish of this pump suction delivery specifications individually.Pump cover separates oil motor and pump housing two-part, and oil motor has a seal casing outward, fish pump can be put into fish and water liquid, operating hydraulically operated control valve, but by hydraulic driving fish pump clingfish just.
The present invention is owing to adopt the impeller of simple beam structure, impeller outer diameter is selected for use suitably with the ratio of impeller outlet width and than changeing to hold, housing adopts the semi-scroll hull shape pump case of the tangential outlet of wide runner, main parts size all adopts plastics or glass fibre reinforced plastics, prove that through practical probation this pump is by functional and do not produce cavitation phenomenon, the fish damage ratio is low, moving the freshwater fishes of putting in a suitable place to breed on the pool can continue to put in a suitable place to breed through the fish pump suction, the hydraulic efficiency height of fish pump, running steadily, long service life, and have in light weight, volume is little, characteristics such as easy to operate.
Below in conjunction with accompanying drawing embodiments of the invention are further described.
Fig. 1 is a structural representation of the present invention,
Fig. 2 is a housing front view of the present invention,
Fig. 3 is a housing left side view of the present invention.
Among the figure: 1 oil motor case, 2 oil motors, 3 impeller core wheels, 4 pump covers, 5 pump cases, 6 impellers, 7 impeller caps, 8 impeller port rings, 9 sliding axle carrier rings, 10 pump case inserts, 11 times grilles.
Shown in Fig. 2,3, pump case 5 of the present invention is at the first transverse section broad of housing, and requirement can make the maximum fish body of being inhaled pass through smoothly, and the cut water that the fish body is caused injury is circular arc, forms the semi-scroll shape pump case of the tangential outlet of wide runner.The suction port of pump case is the big chamfering of circular arc, at the fastening sliding axle carrier ring 9 of suction port, inside circumference at the sliding axle carrier ring has some semicircular lubricated tanks 12, and present embodiment is 12, and the inner bottom part of sliding axle carrier ring also has 12 flat lubricated tanks and links with the lubricated tank of semicircle.The sliding axle carrier ring adopts water lubrication high-abrasive material P23-1 plastic processing to make, and it does not need oil or other grease lubrication only with water lubrication, and is comparatively desirable to the fish pump diving operation.Housing adopts plastics or unsaturated resin material, and present embodiment adopts unsaturated polyester resin and glass fibre moulding to make, and for strengthening the linking intensity of pump case, respectively is installed with 6 pieces of metal pump case inserts 10 on the two sides of pump case and connects with nut.Intersect some grooves on the circumferential surface of cylindrical copper inserts in length and breadth.Grille 11 under the pump case inserts scyewed joint below the pump case, following grille make with round steel that the gap is corresponding with fish pump suction port size in length and breadth, avoid damage in the fish body suction pump of excessive specification.Pump case inserts above the pump case connects pump case 4, oil motor case 1 and fish pump hoist cable earrings with bolton.Pump cover separates pump and oil motor, and the transmission shaft that oil motor stretches out passes the pump cover center hole and connects with impeller with key.Impeller adopts plastics or unsaturated resin material to make, and present embodiment also adopts unsaturated polyester resin and glass fibre moulding to make.Being installed with the impeller core wheel 3 that copper product is made, on the cylindrical circumferential surface of impeller core wheel some grooves are also arranged with oil motor propeller shaft couplings place.There is in the middle of the impeller joint part impeller cap 7 to be fastened on the end face of impeller core wheel, becomes streamlined connection with impeller by screw.At the other end of impeller, impeller eye top cylindrical tightens impeller port ring 8, and the sliding axle carrier ring on impeller port ring and the pump case is formed sliding bearing pair, makes impeller become the simple beam structure running.Impeller port ring can select for use stainless steel or Cu alloy material to make, and present embodiment adopts Cu alloy material.For make fish pump that good passing ability be arranged and improve hydraulic efficiency as far as possible, the present embodiment impeller is that double-leaf passes specific speed η
SBe about 230, the ratio of impeller outer diameter and impeller outlet width is a bit larger tham 2.6.
Bore of the present invention is that 175 millimeters plastic centrifugal diving fishpumps prove through the actual condition test: by functional. Can pick up 2.2 kilograms carp (long 49 centimetres, wide 14 centimetres, thick 9 centimetres of body), pick up 2 kilograms variegated carp (long 52 centimetres, wide 13 centimetres, thick 9.2 centimetres of body), these fishes are after fish pump is inhaled, not damaged, can continue to put in a suitable place to breed, in the situation that density increases, can suct about 750 kilograms fish in 2 minutes. Fish loss rate only about 1%. Efficient is higher, is 61%. Smooth running has improved service life.
Claims (6)
1, a kind of is unloaded the centrifugal submersible fish pump of carrying catches and other similar bulk solids granule materials, and main impeller by the wide runner of double-leaf, pump case, bearing, pump cover, oil motor etc. are formed.It is characterized in that, fix an impeller port ring on the cylindrical of impeller eye top, fix a sliding axle carrier ring on pump case inlet inner edge, two rings are formed sliding bearing pair, and impeller becomes a tube beam structure.
2, fish pump according to claim 1 is characterized in that, pump case is the semi-scroll shape pump case of the tangential outlet of wide runner, and cut water is in the arc-shaped.
3, fish pump pump case according to claim 2 is characterized in that, suction port is the big chamfering of circular arc, cooperates with impeller eye to form streamlined suction port.
4, fish pump according to claim 1 is characterized in that, impeller and pump case all adopt plastics or unsaturated resin to make, and each the screw joint at pump case is installed with the metal embedded component, and the oil motor output shaft joint at impeller is installed with the metallic impeller core wheel.
5, fish pump according to claim 1 is characterized in that, be fixed on sliding axle carrier ring on the pump case inlet inner edge in have some semicircles lubricate tank, correspondingly have width to equate with it in the bottom and with it the continuous water lubrication in right angle rise as high as the banks.
6, fish pump according to claim 1 is characterized in that, forms the impeller port ring of sliding bearing pair, and the sliding axle carrier ring adopts stainless steel or Cuprum alloy and P23-1 phenolic plastics to make respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104408 CN87104408A (en) | 1987-06-27 | 1987-06-27 | Plastic centrifugal submersible fish pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87104408 CN87104408A (en) | 1987-06-27 | 1987-06-27 | Plastic centrifugal submersible fish pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN87104408A true CN87104408A (en) | 1987-12-23 |
Family
ID=4814863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87104408 Pending CN87104408A (en) | 1987-06-27 | 1987-06-27 | Plastic centrifugal submersible fish pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN87104408A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491547A (en) * | 2011-12-31 | 2012-06-13 | 山东水务环保集团有限公司 | Inverted-umbrella-type aeration impeller |
| CN103821760A (en) * | 2014-03-10 | 2014-05-28 | 中国包装和食品机械有限公司 | Water conservancy conveying pump for tuberous agricultural products |
| CN109067127A (en) * | 2018-08-17 | 2018-12-21 | 张英华 | Shaftless flooring fan, shaftless smoke exhaust ventilator and shaftless fishes and shrimps pump |
| CN113891992A (en) * | 2019-05-29 | 2022-01-04 | 流体处理有限责任公司 | Turbine without bearing |
-
1987
- 1987-06-27 CN CN 87104408 patent/CN87104408A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102491547A (en) * | 2011-12-31 | 2012-06-13 | 山东水务环保集团有限公司 | Inverted-umbrella-type aeration impeller |
| CN102491547B (en) * | 2011-12-31 | 2013-08-28 | 山东水务环保集团有限公司 | Inverted-umbrella-type aeration impeller |
| CN103821760A (en) * | 2014-03-10 | 2014-05-28 | 中国包装和食品机械有限公司 | Water conservancy conveying pump for tuberous agricultural products |
| CN109067127A (en) * | 2018-08-17 | 2018-12-21 | 张英华 | Shaftless flooring fan, shaftless smoke exhaust ventilator and shaftless fishes and shrimps pump |
| CN113891992A (en) * | 2019-05-29 | 2022-01-04 | 流体处理有限责任公司 | Turbine without bearing |
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