CN206917865U - A kind of vertical no-sealed self-sucking pump - Google Patents
A kind of vertical no-sealed self-sucking pump Download PDFInfo
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- CN206917865U CN206917865U CN201720561380.5U CN201720561380U CN206917865U CN 206917865 U CN206917865 U CN 206917865U CN 201720561380 U CN201720561380 U CN 201720561380U CN 206917865 U CN206917865 U CN 206917865U
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Abstract
The utility model discloses a kind of vertical no-sealed self-sucking pump,Belong to a kind of self priming pump,Aim to provide a kind of energy consumption that can be reduced and come by accessory impeller rotational band,Improve the vertical no-sealed self-sucking pump of the efficiency of pump,Its drip irrigation device is,A kind of vertical no-sealed self-sucking pump,Pump cover including the pump housing and at the top of the pump housing,In the side wall of the pump housing suction hose and drainpipe are connected to positioned at relative both sides,Middle part in the pump housing is provided with diaphragm plate,The water inlet being connected with suction hose is provided with the middle part of diaphragm plate,Cavity top in the pump housing is gas-liquid separation chamber by diaphragm plate,Motor is provided with the top of the pump housing,The output end of motor is coaxially connected with pump shaft,On pump shaft impeller is connected with positioned at water inlet close to the side of gas-liquid separation chamber,The through hole one that the pump housing is stretched into for pump shaft is provided with the middle part of pump cover,Gas-liquid separation chamber side is provided with sealing device at through hole one on pump cover,Sealing device includes seal box and accessory impeller.
Description
Technical field
A kind of self priming pump is the utility model is related to, more particularly to a kind of vertical no-sealed self-sucking pump.
Background technology
Self priming pump refers to be not required to pour water before activation（Only need to fill a certain amount of water when after mounting for the first time starting）, warp
Short-time running is crossed, by the effect of pump in itself, you can so that water is drunk up, put into a kind of water pump of normal work.Compared to general
Logical centrifugal pump, self priming pump, which has, to be used conveniently and safely, and water resource loss is few, the significant advantage of grade easy to maintain.
Self priming pump can be divided into that gas-liquid mixed, water ring be wheeled and jetting type by action principle, wherein gas-liquid mixed
Because being widely used in the engineerings such as petrochemical industry, food, environmental protection with relatively low manufacturing cost, higher self-priming performance and hydraulic efficiency
Field, particularly vertical gas-liquid mixed self priming pump because it is rational in infrastructure, maintain easily and increasingly paid attention to by the same industry.From
The sealing means of sucking pump can be divided into mechanical seal, packing seal and dynamic seal by sealing principle difference, wherein dynamic seal because
It need not directly contact, and mechanical loss is not present, usage time is long, the advantage of good sealing effect etc. and extensive use.
It is existing without sealing vertical self-sucking pump, shown in Figure of description 4, including the pump housing 1, rotating shaft 6, the accessory lobes to seal
32 and impeller 5 are taken turns, pumping chamber is formed between the accessory impeller 32 and impeller 5 in the pump housing between rotating shaft, to prevent the liquid in the pump housing 1
The leakage at accessory impeller 32 is, it is necessary to make pressure caused by accessory impeller 32 more than the external diameter of the pressure of impeller 5, then corresponding accessory impeller 32
It is big with respect to impeller 5, because the power of the sealing consumption of accessory impeller 32 is directly proportional to five powers of the outer blade diameter of accessory impeller 32, therefore
The power that the big then accessory impeller 32 of external diameter consumes is high, and the power of pump total consumption is big and efficiency is low.
Utility model content
The purpose of this utility model is to provide a kind of vertical no-sealed self-sucking pump, the pressure born by reducing accessory impeller,
Reduce accessory impeller external diameter, and reduce the energy consumption come by accessory impeller rotational band, improve the efficiency of pump.
Above-mentioned technical purpose of the present utility model technical scheme is that：A kind of vertical type non-sealed is certainly
Sucking pump, including the pump housing and the pump cover at the top of the pump housing, suction is connected to positioned at relative both sides in the side wall of the pump housing
Water pipe and drainpipe, the middle part in the pump housing are provided with diaphragm plate, are provided with the middle part of the diaphragm plate and are connected with suction hose
Cavity in the pump housing is divided into hydroecium and gas-liquid separation chamber by logical water inlet, the diaphragm plate, and the top of the pump housing is set
There is motor, the output end of the motor is coaxially connected with pump shaft, water inlet is located on the pump shaft close to the one of gas-liquid separation chamber
Side is connected with impeller, and the through hole one that the pump housing is stretched into for pump shaft is provided with the middle part of the pump cover, is located at through hole one on the pump cover
Place is provided with sealing device close to gas-liquid separation chamber side, and the sealing device includes seal box and accessory impeller, the seal box
The through hole two for being provided centrally with wearing for pump shaft, the aperture of the through hole two is more than the external diameter of pump shaft, and the sealing box cover is set
Some barrier rings are radially outwards diffused with from center on accessory impeller and positioned at being provided with close to the side of accessory impeller, the pair
The center of impeller is to being extended the sealing ring that has for being fixedly connected with pump shaft, the internal diameter and pump of the sealing ring at through hole one
The external diameter of axle is identical, and accessory impeller includes some blades, and described blade one end is connected on sealing ring, and the other end stretches out connection
There is disk, the seal box coordinates with accessory impeller gap and is connected by screw with pump cover.
Pass through above-mentioned technical proposal, after electric motor starting, the pump shaft being fixedly and coaxially connected with the output end of motor can drive
Wheel rotation, in the high-speed rotation of impeller, the liquid of air and suction interior in suction hose is constantly inhaled into gas-liquid separation
Room is separated, and gas discharge, liquid returns to suction room under gravity, after circulating for several times, negative pressure is formed in suction hose, is reached
To self-priming purpose；The accessory impeller that is rotated at a high speed on pump shaft by being fixed on and being fixed between seal box static on pump cover is formed
Resistance channel, it is depressured when entering the resistance channel to highly pressurised liquid caused by pump operation, makes the reduction of its flow velocity, and then prevent pump
Clearance leakage of the internal liquid between pump shaft and pump cover, and reversely pressure is produced by the accessory impeller convection body of high speed rotation
Power, liquid is prevented to leak out, so as to reach the purpose of sealing；And in barrier ring and accessory impeller by being set on seal box
The sealing ring of the heart so that flow velocity and pressure stop in the two before fluid enters impeller from seal box and between pump shaft
It is lower gradually to reduce, and then reduce the pressure that accessory impeller is born so that the pressure that accessory impeller is born is less than impeller, and its size can be with
It is corresponding to reduce, and then pump housing consumption power is reduced, improve the efficiency of imbibition of pump.
Further, 6-8 piece blades are provided with the accessory impeller, the blade is backward leaning vane.
Pass through above-mentioned technical proposal, can either improve the very few lift that easily causes of blade by the setting of 6-8 piece blades reduces
Situation, and can enough reduce blade it is excessive when cause pump housing suction capacity reduce situation occur；And backward leaning vane relative to
Prismatic blade has higher lift, and the setting of back ward impeller causes the raising of the potential energy of fluid more than the raising of fluid dynamic energy, to enter
And cause fluid when kinetic energy changes into potential energy at impeller, reduce energy loss during sub-impeller seal so that pump housing self-priming is imitated
Rate improves.
Further, it is provided with helical-blade on the pump shaft between accessory impeller and impeller, the helical-blade is from impeller
It is in gradual-enlargement type to the direction of accessory impeller.
Pass through above-mentioned technical proposal, helical-blade are arranged on the pump shaft between accessory impeller and impeller, and helical-blade is to liquid
Body produces outside pressure, due to direction of the helical-blade from diaphragm plate to pump cover is in gradual-enlargement type and to flowing to the liquid in accessory impeller direction
Body produces the larger active force expanded outwardly, so as to reduce the pressure that liquid flows to accessory impeller, reduces the energy of accessory impeller
Amount loss, improve the sealing effectiveness of accessory impeller.
Further, the suction hose is S bend pipe road, and one end that the S bend pipe road stretches into the pump housing is connected to water inlet.
Pass through above-mentioned technical proposal, S bend pipe road are advantageous to the Water-saving effect of self priming pump, reduce the water in the pump housing after termination of pumping
Flow situation about overflowing from suction hose to occur, and self-priming can be also advantageous to higher than the center line of impeller by the mouth of pipe of drainpipe
The Water-saving effect of pump, reduce the situation that the current after termination of pumping in the pump housing overflow from drainpipe and occur.
Further, the mouth of pipe of the drainpipe is higher than the center line of impeller.
Pass through above-mentioned technical proposal, the mouth of pipe of drainpipe are higher than the center line of impeller, are advantageous to the water conservation in the pump housing, reduce
The situation that current after termination of pumping in the pump housing overflow from drainpipe occurs.
Further, air bleeding valve is installed on the suction hose.
Pass through above-mentioned technical proposal, the setting of air bleeding valve, prevent " siphonage ".
Further, electric air control valve, the electric air control valve and vavuum pump are installed on the suction hose
Electrical connection.
Pass through above-mentioned technical proposal, the electric air control valve electrically connected with vavuum pump, electronic sky are installed on suction hose
When gas control valve is closed, sealing is realized；Control valve is opened after shutdown, so as to destroy the vacuum in suction line, so as to
Prevent liquid many suction lines outflow because of cylinder suction effect after shutting down in pump chamber.
In summary, the utility model has the advantages that：
By the barrier ring and the sealing ring at accessory impeller center set on seal box, pass through the direction from impeller to accessory impeller
The pressure that accessory impeller is born can be reduced in the setting of the helical-blade of gradual-enlargement type, and using backward leaning vane so that accessory lobes
Take turns the pressure born to reduce, so as to reduce the external diameter of accessory impeller, and then pump housing consumption power is reduced；
It is setting of the mouth of pipe of S bend pipe road and drainpipe higher than the center line of impeller by suction hose, is advantageous to water conservation；
It can be realized by the setting of air bleeding valve on suction hose and electric air control valve and be manually or automatically vented, reduced
Siphonage.
Brief description of the drawings
Fig. 1 is the connection relationship diagram for being used to embody the pump housing, suction hose and drainpipe in the present embodiment；
Fig. 2 is the left view of Fig. 1 middle pump bodies；
Fig. 3 is the profile of A-A in Fig. 2；
Fig. 4 is the connection relationship diagram for being used to embody impeller and accessory impeller and pump shaft in the prior art.
In figure, 1, the pump housing；11st, diaphragm plate；111st, water inlet；112nd, hydroecium is entered；113rd, gas-liquid separation chamber；12nd, suction hose；
121st, air bleeding valve；122nd, electric air control valve；13rd, drainpipe；12nd, motor；2nd, pump cover；21st, through hole one；22nd, pump support；
23rd, annular groove；3rd, sealing device；31st, seal box；311st, through hole two；312nd, barrier ring；32nd, accessory impeller；321st, blade；322nd, it is close
Seal ring；323rd, disk；4th, helical-blade；5th, impeller；6th, pump shaft.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Embodiment：A kind of vertical no-sealed self-sucking pump, as shown in figs. 1 and 3, including the pump housing 1, the top of the pump housing 1 are provided with pump
Lid 2, pump support 22 is provided with pump cover 2, motor 12 is installed on pump support 22, through hole 1, motor 12 are provided with pump cover 2
Output end be coaxially connected with pump shaft 6, pump shaft 6 is stretched into the pump housing 1 from the through hole 1 of pump cover 2.Cavity is formed in the pump housing 1, it is empty
Diaphragm plate 11 is provided with the middle part of chamber, the middle part of diaphragm plate 11 is provided with water inlet 111, and the cavity on the top of diaphragm plate 11 is gas-liquid
Separation chamber 113, the cavity of the bottom of diaphragm plate 11 is suction room 112, and impeller 5, leaf are connected with water inlet 111 on pump shaft 6
Wheel 5 in the gas-liquid separation chamber 113, the rotation of pump shaft 6 can impeller 5 rotate.
As shown in figure 3, it is connected to suction hose 12 and drainpipe 13 positioned at relative both sides in the side wall of the pump housing 1.Its
In, drainpipe 13 connects with gas-liquid separation chamber 113, and the mouth of pipe of drainpipe 13 is higher than the position of center line of impeller 5, is advantageous to the pump housing
1 water conservation so that water need not be added when reusing again into the pump housing 1.Suction hose 12 is S bend pipe road, and S bend pipe road stretches into the pump housing
1 one end is connected at water inlet 111 so that current are flowed directly into impeller 5 from suction hose 12, the row of being provided with suction hose 12
Air valve 121, electric air control valve 122, electric air control valve 122 and motor are installed outside the pump housing 1 on suction hose 12
14 electrical connections, when motor 14 is out of service, electric air control valve 122 is opened so that and the air outside the pump housing 1 enters the pump housing 1,
Improve because siphonage easily occurs in vacuum environment when shutting down in the pump housing 1.
As shown in figure 3, the inner side of pump cover 2, which is located at through hole 1, is provided with sealing device 3, sealing device 3 is located at gas-liquid
The top of separation chamber 113, sealing device 3 include accessory impeller 32 and seal box 31, and accessory impeller 32 is fixedly connected in the bottom of pump cover 2
Pump shaft 6 on, accessory impeller 32 can rotate with the rotation of pump shaft 6, and accessory impeller 32 includes internal sealing ring 322, outside
Disk 323 and the blade 321 connected between the two, accessory impeller 32 are arranged by sealing ring 322 and are sealingly attached to pump shaft 6
On, blade 321 is backward leaning vane, has 6-8 pieces blade 321, backward leaning vane can reduce accessory impeller 32 compared to prismatic blade
Energy loss.The annular groove 23 for one end grafting of disk 323 is provided with pump cover 2, the width of annular groove 23 is more than the width of disk 323
Degree, can reduce the influence that pump cover 2 rotates to disk 323, reduce liquid again and worn from the gap between disk 323 and pump cover 2
Situation about crossing.
As shown in figure 3, seal box 31 is located on accessory impeller 32, seal box 31 is connected by screw on pump cover 2, sealing
The middle part of box 31 is provided with the through hole 2 311 passed through for pump shaft 6, and the aperture of through hole 2 311 is more than the external diameter of pump shaft 6, Er Qiemi
Jacket 31 coordinates with the gap of accessory impeller 32 so that the rotation of accessory impeller 32 and pump shaft 6 does not easily cause the abrasion of seal box 31.It is close
Jacket 31 is diffused with some barrier rings 321 along center to surrounding, can effectively stop diffusion of the fluid in seal box 31, drop
The pressure of low fluid, and then improve the pressure born of accessory impeller 32, reduce the energy loss of accessory impeller 32.
As shown in figure 3, be provided with helical-blade 4 on pump shaft 6 between accessory impeller 32 and impeller 5, helical-blade 4 is from impeller 5
It is in gradual-enlargement type to the direction of accessory impeller 32, the pressure for the fluid that accessory impeller 32 is born can be reduced, improves the sealing of accessory impeller 32
Effect.
Specific implementation process：Liquid is filled in the pump housing 1 when using first, now the suction hose 12 of the pump housing 1 and drainpipe 13
In be full of air, start motor 14, impeller 5 revolves at a high speed under the drive for the pump shaft 6 being fixedly and coaxially connected with the output end of motor 14
Turn, when the liquid in suction hose 12 and air are sucked gas-liquid separation chamber 113 by impeller 5 together, leave the gas-liquid mixed of impeller 5
Thing, flow velocity are reduced suddenly, and because gas is different from the proportion of liquid, lighter gas is separated and is discharged from mixed liquor
Outside the pump housing 1, the liquid of degassing is mixed into again at impeller 5 and the air with being sucked inside impeller 5 from suction hose 12 mixes again,
Repetitive cycling above-mentioned steps, until the air in suction hose 12 is all discharged into, and then vacuum state is formed in suction hose 12,
Outside liquid is inhaled into suction hose 12 under atmospheric pressure, completes pump self-priming process.Moreover, by controlling electronic sky
The opening and closing of gas control valve 122 can control the sealing of the pump housing 1 or broken ring vacuum, electric air control valve 122 respectively
Electrically connected with motor 14, after shutdown, open electric air control valve 122, break the vacuum of the ring pump housing 1, prevent the liquid of the pump housing 1 after shutting down
Body flows out because cylinder suction acts on from suction hose 12, makes to preserve enough liquid in the pump housing 1 to continue to complete self-priming process.
Again, because accessory impeller 32 is fixedly connected with pump shaft 6, and accessory impeller 32 and the seal box that is fixed on pump cover 2
31 gaps coordinate, and rotate not easily damaged sealing device 3 relative to the high speed of mechanical seal pump shaft 6, improve useful life.Work as pump
Fluid in body 1 due in pump pressure by the sealing device 3 between pump cover 2 and pump shaft 6 to External leakage when, sealing stream first
Body is leaked out by the gap between seal box 31 and accessory impeller 32, when fluid passes through some barriers for being set on seal box 31
Energy rapid decay during ring 321, and under the stop of the high speed rotation of accessory impeller 32 so that the pressure and flow velocity of fluid are quick
Reduce, the rotation of accessory impeller 32 can produce buffer brake, further prevent gas or liquid from leaking out, and improve the pump housing 1
Sealing.
This specific embodiment is only that it is not to limitation of the present utility model, ability to explanation of the present utility model
Field technique personnel can make the modification of no creative contribution to the present embodiment as needed after this specification is read, but
As long as all protected in right of the present utility model by Patent Law.
Claims (7)
1. a kind of vertical no-sealed self-sucking pump, including the pump housing (1) and the pump cover (2) at the top of the pump housing (1), the pump housing (1)
Side wall on positioned at relative both sides be connected to suction hose (12) and drainpipe (13), the middle part in the pump housing (1) is set
Diaphragm plate (11) is equipped with, the water inlet (111) being connected with suction hose (12) is provided with the middle part of the diaphragm plate (11), it is described
Cavity in the pump housing (1) is divided into hydroecium (112) and gas-liquid separation chamber (113), the top of the pump housing (1) by diaphragm plate (11)
Motor (14) is provided with, the output end of the motor (14) is coaxially connected with pump shaft (6), is located at water inlet on the pump shaft (6)
(111) impeller (5) is connected with close to the side of gas-liquid separation chamber (113), is provided with the middle part of the pump cover (2) for pump shaft (6)
The through hole one (21) of the pump housing (1) is stretched into, it is characterized in that：
The inner side of the pump cover (2), which is located in gas-liquid separation chamber (113), is provided with sealing device (3), sealing device (3) bag
Include seal box (31) and accessory impeller (32), the through hole two for being provided centrally with wearing for pump shaft (6) of the seal box (31)
(311), the aperture of the through hole two (311) is more than the external diameter of pump shaft (6), and the seal box (31) is located on accessory impeller (32)
And some barrier rings (312), the pair are radially outwards diffused with from center positioned at being provided with close to the side of accessory impeller (32)
The center of impeller (32) is extended the sealing ring (322) having for being fixedly connected with pump shaft (6) to through hole one (21) place, described
The internal diameter of sealing ring (322) is identical with the external diameter of pump shaft (6), the outer wall of the sealing ring (322) and the inwall of disk (323) it
Between be connected with blade (321), the seal box (31) coordinates with accessory impeller (32) gap and is connected by screw with pump cover (2).
2. a kind of vertical no-sealed self-sucking pump according to claim 1, it is characterized in that：The blade (321) is provided with 6-8
Individual, the blade (321) is backward leaning vane (321).
3. a kind of vertical no-sealed self-sucking pump according to claim 1, it is characterized in that：It is located at accessory lobes on the pump shaft (6)
Helical-blade (4) is provided between wheel (32) and impeller (5), the helical-blade (4) is in from impeller (5) to the direction of accessory impeller (32)
Gradual-enlargement type.
4. a kind of vertical no-sealed self-sucking pump according to claim 1, it is characterized in that：The suction hose (12) is S bend pipe
Road, one end that the S bend pipe road stretches into the pump housing (1) are connected to water inlet (111) place.
5. a kind of vertical no-sealed self-sucking pump according to claim 1, it is characterized in that：The mouth of pipe of the drainpipe (13) is high
Center line in impeller (5).
6. a kind of vertical no-sealed self-sucking pump according to claim 1, it is characterized in that：It is provided with the suction hose (12)
Air bleeding valve (121).
7. a kind of vertical no-sealed self-sucking pump according to claim 1, it is characterized in that：It is provided with suction hose (12) electronic
Air shut-off valve (122), the electric air control valve (122) electrically connect with motor (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720561380.5U CN206917865U (en) | 2017-05-18 | 2017-05-18 | A kind of vertical no-sealed self-sucking pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720561380.5U CN206917865U (en) | 2017-05-18 | 2017-05-18 | A kind of vertical no-sealed self-sucking pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206917865U true CN206917865U (en) | 2018-01-23 |
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ID=61308236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720561380.5U Active CN206917865U (en) | 2017-05-18 | 2017-05-18 | A kind of vertical no-sealed self-sucking pump |
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| Country | Link |
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| CN (1) | CN206917865U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661918A (en) * | 2018-07-16 | 2018-10-16 | 上海瑞晨环保科技有限公司 | Closed type self priming centrifugal pump |
-
2017
- 2017-05-18 CN CN201720561380.5U patent/CN206917865U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108661918A (en) * | 2018-07-16 | 2018-10-16 | 上海瑞晨环保科技有限公司 | Closed type self priming centrifugal pump |
| CN108661918B (en) * | 2018-07-16 | 2024-03-22 | 上海瑞晨环保科技股份有限公司 | Sealed self-priming centrifugal pump |
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