CN202520572U - Pneumatic submersible pump with idle overspeed protection function - Google Patents
Pneumatic submersible pump with idle overspeed protection function Download PDFInfo
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- CN202520572U CN202520572U CN 201220044785 CN201220044785U CN202520572U CN 202520572 U CN202520572 U CN 202520572U CN 201220044785 CN201220044785 CN 201220044785 CN 201220044785 U CN201220044785 U CN 201220044785U CN 202520572 U CN202520572 U CN 202520572U
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Abstract
The utility model relates to a pneumatic submersible pump with an idle overspeed protection function. The pneumatic submersible pump comprises a turbine, a turbine shell, a rotation shaft, a bearing shell, a sealing device, a water wheel, a pump body and a brake positioned in the bearing shell, wherein the brake comprises a disc cover sleeved on the rotation shaft, a pair of arc brake shoes, friction rings adhered to the outside surfaces of the arc brake shoes, fixed bases fixed on a radially-extended disc body of the disc cover, bolts which penetrate through the fixed bases and are screwed by nuts, compressed springs which are sleeved on the bolts and tightly pressed between the heads of the bolts and the fixed bases, and connection steel wires of which two ends are respectively fixed to the bolts and one ends of the brake shoes, and the other ends of the brake shoes are fixed to the disc over by pin shafts in a rotatable mode. When water is nearly pumped or completely pumped, the submersible pump is in an idling state, and the rotation shaft rotates at an over speed, the brake automatically and effectively limits the speed, so the service life of a complete machine is prolonged; the energy conversion efficiency is high; the using noise is low; a combined impeller is adopted, so the pneumatic submersible pump is also suitable for sewage with large particle impurities; and the flow is high, and the pumping head is relatively high.
Description
Technical field
The utility model relates to a kind of pneumatic sump pump with unloaded overspeed protection, belongs to the wind-driven water pump technical field.
Background technique
The existing pneumatic submersible pump of turbo type is when water exhausts soon even exhausts zero load, because suction pressure is constant, pneumatic submersible pump can surpass 2 times of rated speeds, and complete machine can influence working life because of heating damages bearing, seal ring etc.And mostly turbine is that matrix, blade, shroud are welded, and is difficult to guarantee it and makes precision, influences the conversion efficiency of wind energy to kinetic energy.
Summary of the invention
For addressing the above problem, the utility model provides a kind of pneumatic sump pump with unloaded overspeed protection, and this submersible pump adopts break, when water is drained soon even is exhausted zero load after the rotating shaft overspeed rotation, break can be automatically effective speed limit, improve complete machine working life; Energy conversion efficiency is high; The use noise is little.
For achieving the above object, the technological scheme that the utility model adopted is:
A kind of pneumatic sump pump with unloaded overspeed protection comprises turbine coverplate, turbine, turbine shroud, rotating shaft, support device, seal arrangement, water wheels, pump cover, pump seat, the pump housing, and said turbine is positioned at turbine shroud; Said turbine coverplate is positioned at the turbine top and is fixedly connected with turbine shroud; Said water wheels are positioned at the pump housing, and said pump cover is positioned at the water wheels below and is fixedly connected with the pump housing, and said pump seat is positioned at below the pump housing and the pump cover and with the pump housing and is fixedly connected; Said support device comprises bearing cap, bearing, bearing housing; Said bearing housing upper end is fixedly connected with bearing cap and turbine shroud, and the lower end is fixedly connected with the pump housing, and said bearings is between bearing housing and rotating shaft; Turbine shroud, bearing housing, the pump housing are passed in said rotating shaft successively; And its upper end is fixedly connected with turbine, and the lower end is fixedly connected with water wheels, said seal arrangement comprise be fixed in the interior sealing seat of the pump housing and be embedded in sealing seat interior and be placed in the seal ring of rotating shaft; Said turbine shroud is provided with the air intake joint; The said pump housing is provided with water output connector, also comprises the break that is positioned at bearing housing, and said break comprises the dish cover that is fixed in the rotating shaft axial surface, a pair of curved and brake shoe, the friction ring that is affixed on brake shoe arc outer surface, screw, stage clip, fixed base, nut, connection steel wire that end-to-end is installed; Said fixed base is fixed on the disk body that radially extends of dish cover; Said screw passes the through hole on the fixed base and is tightened on fixed base through nut, and said stage clip is placed on the screw and is pressed between the head and fixed base of screw, and said connection steel wire one end is fixed on the screw; The other end is fixed in an end of brake shoe through housing screw, and the other end of said brake shoe is through on the rotating disk body that is fixed in the dish cover of bearing pin.
The gap H of said friction ring and bearing housing inwall is not less than 2mm.For conserve space, the utility model two brake shoes adopt the end-to-end form to install.(4500～5500r/min) time, brake shoe can not contact with the bearing housing inwall under the pulling of stage clip pulling force in the rated speed scope when pneumatic sump pump.When water exhausted soon even exhausts zero load, because suction pressure is constant, pneumatic sump pump can surpass rated speed, and brake shoe is owing to centrifugal action, and its outside friction ring is pressed to the bearing housing inwall, produces friction brake force.When rotating speed was got back in the range of normal value again, stage clip elastic force can retract brake shoe again, does not influence the pneumatic sump pump proper functioning.
Also comprise baffler; Said baffler comprises silencer cover, outlet pipe, acoustical panel; Said silencer cover is fixed in the turbine coverplate upper end; Said acoustical panel is embedded in the silencer cover and with the outlet pipe that runs through silencer cover and is fixedly connected, and in the cavity that said silencer cover, outlet pipe, acoustical panel three form, is filled with the noise reduction cotton.The utility model adopts aperture crowd's exhaust and expansion chamber noise-cancelling theory to reduce noise.Pressurized air is further eliminated the noise through acoustical panel aperture crowd after the turbine coverplate square hole enters silencer cover expansion noise elimination, and the cotton blocking-up of noise reduction is eliminated the noise, and outlet pipe aperture crowd noise elimination, combination are eliminated the noise and reduced noise.Adopt the noise reduction cotton can noise be reduced to 60dB by 70dB.
In said air intake joint, air intake passage is arranged; The first half of said air intake passage is a curved surface; Lower Half is curved surface and the conical surface composition that joins; The radian value of said first half curved surface is in R160～R170 scope, and the radian value of said Lower Half curved surface is in R130～R140 scope, and the angle axial and horizontal plane of said conical surface is 16 °.Angle (the being the air port reference angle) α axial and horizontal plane of the conical surface of air intake joint air intake passage gets 16 ° of smaller values, and over against the turbine blade concave surface, thrust is maximum; Because reference angle is little, the axial force (idle component) that promotes turbine is little, and tangential force is big, and energy conversion efficiency is high.
The radian value of said first half curved surface is R165, and the radian value of said Lower Half curved surface is R136.
On said silencer cover, be fixed with two carrying handles.Carrying handle is used for complete machine and mentions mobile.
The turbine blade of said turbine adopts selenodont streamline blade, and the turbine blade of said water wheels adopts half-open centrifugal whirlpool composite blading.The utility model turbine blade adopts half-open centrifugal whirlpool composite blading also can adapt to the sewage that contains the big impurity of particle, and flow is big, and lift is also bigger.
The utility model adopts the internal expanding two shoe brake, in case hypervelocity, braking force increases and increases rapidly with rotational velocity, and braking effect is obvious, can effectively improve complete machine working life; Adopt the baffler of compound noise reduction composite structure to reduce noise, use noise little; Adopt the efficient turbine of integral precision casting, the specific energy conversion is high; Adopt combined type impeller, also can adapt to the sewage that contains the big impurity of particle, and flow is big, lift is also bigger.
Description of drawings
The structural representation that Fig. 1 partly cuts open for the utility model;
Fig. 2 is the A-A cross-sectional view among Fig. 1;
Fig. 3 is the structural representation of air intake joint and turbine blade position relation;
Fig. 4 is the structural representation of water wheels.
Among the figure: air intake joint 1; Air intake passage 1-1; Curved surface 1-2; Curved surface 1-3; Conical surface 1-4; Turbine coverplate 2; Carrying handle 3; Silencer cover 4; Outlet pipe 5; Noise reduction cotton 6; Acoustical panel 7; Turbine 8; Turbine blade 8-1; Turbine shroud 9; Bearing cap 10; Bearing 11; Rotating shaft 12; Bearing housing 13; Seal ring 14; Sealing seat 15; Water wheels 16; Turbine blade 16-1; Pump cover 17; Pump seat 18; The pump housing 19; Water output connector 20; Friction ring 21; Brake shoe 22; Bearing pin 23; Screw 24; Packing ring 25; Stage clip 26; Fixed base 27; Through hole 27-1; Nut 28; Connect steel wire 29; Housing screw 30; Flat key 31; Dish cover 32; Disk body 32-1.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment the utility model is described further.
Like Fig. 1～shown in Figure 4; A kind of pneumatic sump pump with unloaded overspeed protection comprises turbine coverplate 2, turbine 8, turbine shroud 9, rotating shaft 12, bearing cap 10, bearing 11, bearing housing 13, sealing seat 15, seal ring 14, water wheels 16, pump cover 17, pump seat 18, the pump housing 19, break, baffler.
Break comprises dish cover 32, a pair of brake shoe 22, friction ring 21, screw 24, stage clip 26, fixed base 27, nut 28, the connection steel wire 29 that is fixed in rotating shaft 12 axial surfaces through flat key 31; Fixed base 27 is fixed on the disk body 32-1 of dish cover 32; Screw 24 passes the through hole 27-1 on the fixed base 27 and is tightened on fixed base 27 through nut 28; Stage clip 26 is placed on the screw 24, at the head of screw 24 packing ring 25 is arranged, and connects steel wire 29 1 ends and is fixed on the screw 24; The other end is fixed in an end of brake shoe 22 through housing screw 30, and the other end of brake shoe 22 is through bearing pin 23 rotating being fixed on the disk body 32-1.
Baffler comprises silencer cover 4, outlet pipe 5, acoustical panel 7; Silencer cover 4 is fixed in turbine coverplate 2 upper ends; Acoustical panel 7 is embedded in the silencer cover 4 and with the outlet pipe that runs through silencer cover 45 and is fixedly connected, and in the cavity that silencer cover 4, outlet pipe 5, acoustical panel 7 threes form, is filled with noise reduction cotton 6.On silencer cover 4, be fixed with two carrying handles 3.
Turbine shroud 9 is provided with air intake joint 1; The pump housing 19 is provided with water output connector 20, and air intake passage 1-1 is arranged in air intake joint 1, and the first half of air intake passage 1-1 is curved surface 1-2; Lower Half is curved surface 1-3 and the conical surface 1-4 composition that joins; The radian value of present embodiment first half curved surface 1-2 is R165, and the radian value of said Lower Half curved surface 1-3 is R136, and the angle axial and horizontal plane of conical surface 1-4 is 16 °.
The turbine blade 8-1 of turbine 8 adopts selenodont streamline blade, is material with lightweight cast aluminium alloy ZL107, adopts dewax precision casting once-through, has effectively guaranteed its shape and distributing homogeneity, totally 32 of present embodiments.The turbine blade 16-1 of water wheels 16 adopts half-open centrifugal whirlpool composite blading, also can adapt to the sewage that contains the big impurity of particle, and flow is big, and lift is also bigger.
The utility model when work, air pressure be the pressurized air of 0.4～0.5MPa through air intake joint 1, on turbine blade 8-1, blow turbine 8 high speed rotating with 16 ° of positive top blasts in little oblique angle.Water wheels 16 with being contained in the rotating shaft 12 also rotate with identical speed.Because centrifugal action with the water that gets in its underpart pump seat 18, is thrown to water output connector 20 through water wheels 16, the pump housing 19 actings in conjunction.Pump seat 18 filters the effect of large granular impurity in addition.Seal ring 14 can prevent to be advanced in break, the bearing housing 13 on the liquid in the pump housing 19.
Break is at first adjusted the distance that screws of screw 24 and nut 28 in use, the centrifugal force that brake shoe 22 produces when guaranteeing stage clip 26 pressure more than or equal to the maximum rated speed of pneumatic submersible pump; Adjustment fixed base 27 positions guarantee that the friction ring 21 that is attached to brake shoe 22 outsides is not less than 2mm with bearing housing 13 inwall gap H, and present embodiment H is 2mm, and friction ring 21 adopts asbestos copper wire plate.For conserve space, two brake shoes 22 adopt the end-to-end form to install.When pneumatic sump pump in the rated speed scope (4500～5500r/min) time; Together rotation of flat key 31 drive dishes cover 32 in the rotating shaft 12; It is the trend of center rotation that brake shoe 22 has with bearing pin 23, but it can not contact with bearing housing 13 inwalls under the pulling of stage clip 26 pulling force.When water exhausts soon even exhausts zero load; Because suction pressure is constant, pneumatic sump pump can surpass rated speed, and brake shoe 22 is because centrifugal action; Centrifugal force is greater than the pulling force of stage clip 26 at this moment; Its outside friction ring 21 is pressed to bearing housing 13 inwalls, produces friction brake force, and then the protection pneumatic sump pump.When rotating speed was got back in the range of normal value again, the elastic force of stage clip 26 can retract brake shoe 22 again, does not influence the pneumatic sump pump proper functioning.
Claims (7)
1. pneumatic sump pump with unloaded overspeed protection; Comprise turbine coverplate (2), turbine (8), turbine shroud (9), rotating shaft (12), support device, seal arrangement, water wheels (16), pump cover (17), pump seat (18), the pump housing (19); Said turbine (8) is positioned at turbine shroud (9); Said turbine coverplate (2) is positioned at turbine (8) top and is fixedly connected with turbine shroud (9); Said water wheels (16) are positioned at the pump housing (19); Said pump cover (17) is positioned at water wheels (16) below and is fixedly connected with the pump housing (19); Said pump seat (18) is positioned at below the pump housing (19) and the pump cover (17) and with the pump housing (19) and is fixedly connected; Said support device comprises bearing cap (10), bearing (11), bearing housing (13); Said bearing housing (13) upper end is fixedly connected with bearing cap (10) and turbine shroud (9); The lower end is fixedly connected with the pump housing (19); Said bearing (11) is supported between bearing housing (13) and the rotating shaft (12), and turbine shroud (9), bearing housing (13), the pump housing (19) are passed in said rotating shaft (12) successively, and its upper end is fixedly connected with turbine (8); The lower end is fixedly connected with water wheels (16); Said seal arrangement comprises and is fixed in the sealing seat (15) in the pump housing (19) and is embedded in the sealing seat (15) and is placed in the seal ring (14) of rotating shaft (12) that said turbine shroud (9) is provided with air intake joint (1), and the said pump housing (19) is provided with water output connector (20); It is characterized in that: also comprise the break that is positioned at bearing housing (13); Said break comprises the dish cover (32) that is fixed in rotating shaft (12) axial surface, a pair of curved and the brake shoe (22) that end-to-end is installed, the friction ring (21) that is affixed on brake shoe (22) arc outer surface, screw (24), stage clip (26), fixed base (27), nut (28), connects steel wire (29), and said fixed base (27) is fixed on the disk body (32-1) that radially extends of dish cover (32), and said screw (24) passes the through hole (27-1) on the fixed base (27) and is tightened on fixed base (27) through nut (28); Said stage clip (26) is placed in screw (24) and goes up and be pressed between the head and fixed base (27) of screw (24); Said connection steel wire (29) one ends are fixed on the screw (24), and the other end is fixed in an end of brake shoe (22) through housing screw (30), and the other end of said brake shoe (22) is through on the rotating disk body (32-1) that is fixed in dish cover (32) of bearing pin (23).
2. the pneumatic sump pump of the unloaded overspeed protection of band according to claim 1 is characterized in that: said friction ring (21) is not less than 2mm with the gap H of bearing housing (13) inwall.
3. the pneumatic sump pump of the unloaded overspeed protection of band according to claim 1 and 2; It is characterized in that: also comprise baffler; Said baffler comprises silencer cover (4), outlet pipe (5), acoustical panel (7); Said silencer cover (4) is fixed in turbine coverplate (2) upper end; Said acoustical panel (7) is embedded in the silencer cover (4) and with the outlet pipe that runs through silencer cover (4) (5) and is fixedly connected, and in the cavity that said silencer cover (4), outlet pipe (5), acoustical panel (7) three form, is filled with noise reduction cotton (6).
4. the pneumatic sump pump of the unloaded overspeed protection of band according to claim 1; It is characterized in that: air intake passage (1-1) is arranged in said air intake joint (1); The first half of said air intake passage (1-1) is curved surface (1-2); Lower Half is curved surface (1-3) and conical surface (1-4) composition that joins; The radian value of said first half curved surface (1-2) is in R160～R170 scope, and the radian value of said Lower Half curved surface (1-3) is in R130～R140 scope, and the angle axial and horizontal plane of said conical surface (1-4) is 16 °.
5. the pneumatic sump pump of the unloaded overspeed protection of band according to claim 4 is characterized in that: the radian value of said first half curved surface (1-2) is R165, and the radian value of said Lower Half curved surface (1-3) is R136.
6. the pneumatic sump pump of the unloaded overspeed protection of band according to claim 3 is characterized in that: on said silencer cover (4), be fixed with two carrying handles (3).
7. the pneumatic sump pump of the unloaded overspeed protection of band according to claim 1; It is characterized in that: the turbine blade (8-1) of said turbine (8) adopts selenodont streamline blade, and the turbine blade (16-1) of said water wheels (16) adopts half-open centrifugal whirlpool composite blading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220044785 CN202520572U (en) | 2012-02-13 | 2012-02-13 | Pneumatic submersible pump with idle overspeed protection function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220044785 CN202520572U (en) | 2012-02-13 | 2012-02-13 | Pneumatic submersible pump with idle overspeed protection function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202520572U true CN202520572U (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220044785 Expired - Fee Related CN202520572U (en) | 2012-02-13 | 2012-02-13 | Pneumatic submersible pump with idle overspeed protection function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202520572U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614911C1 (en) * | 2016-01-26 | 2017-03-30 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Turbopump unit |
| CN112814918A (en) * | 2020-12-30 | 2021-05-18 | 东方电气集团东方汽轮机有限公司 | Coaxial integrated rotor structure of vertical turbine water-feeding pump |
-
2012
- 2012-02-13 CN CN 201220044785 patent/CN202520572U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2614911C1 (en) * | 2016-01-26 | 2017-03-30 | Федеральное государственное унитарное предприятие "Государственный космический научно-производственный центр имени М.В. Хруничева" | Turbopump unit |
| CN112814918A (en) * | 2020-12-30 | 2021-05-18 | 东方电气集团东方汽轮机有限公司 | Coaxial integrated rotor structure of vertical turbine water-feeding pump |
| CN112814918B (en) * | 2020-12-30 | 2023-01-20 | 东方电气集团东方汽轮机有限公司 | Coaxial integrated rotor structure of vertical turbine water-feeding pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121107 Termination date: 20140213 |