CN208268080U - A kind of self-priming apparatus and a kind of centrifugal pump - Google Patents
A kind of self-priming apparatus and a kind of centrifugal pump Download PDFInfo
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- CN208268080U CN208268080U CN201820494949.5U CN201820494949U CN208268080U CN 208268080 U CN208268080 U CN 208268080U CN 201820494949 U CN201820494949 U CN 201820494949U CN 208268080 U CN208268080 U CN 208268080U
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Abstract
A kind of self-priming apparatus and a kind of centrifugal pump, self-priming apparatus include liquid separation tophan box, and the inner cavity of the inner cavity of the first tank body and the second tank body is open air tight communication hole by third opening with second；Lower chamber is connected with middle cavity by first through hole, and middle cavity is connected with upper cavity by the second through-hole；Connecting cavity is connected with middle cavity by third through-hole and the second through-hole；The the first check ball valve that can be move freely is equipped in connecting cavity.The top end face of second tank body is equipped with the 4th opening, and the 4th opening is sealed by sealing-plug；It is equipped with the floating ball that can be move freely in first tank body, is equipped with the second check ball valve that can be move freely, floating ball and the second check ball valve in lumen body and is connected by connector.Connector be equipped with can gas-tight seal third through-hole baffle, the second air inlet is connected to the outer end of first row port, and second exhaust port is connected to the outer end of the first air inlet.First opening in communication of the medium inlet of the pump housing of centrifugal pump and first tank body.
Description
Technical field
The utility model relates to a kind of self-priming apparatus and a kind of centrifugal pumps.
Background technique
Centrifugal pump insufficient for suction lift often needs to be arranged self-priming apparatus, and structure is complicated for traditional self-priming apparatus, needs
The driving of extra power source, and the suction lift promoted is limited, whens complex working conditions, easily breaks down, and can also damage and set when serious
It is standby.
Summary of the invention
In view of the above problems in the prior art, the utility model provides a kind of self-priming apparatus and a kind of centrifugal pump, and described
Self-priming apparatus structure is simple, securely and reliably, drives without extra power source, save the cost.
The technical solution adopted in the utility model is:
A kind of self-priming apparatus, the self-priming apparatus include liquid separation tophan box, and the liquid separation tophan box includes the first of lower section
Second tank body of tank body and top；The bottom end of first tank body is equipped with the first opening entered for medium；Second tank body is fixed on
The top of one tank body, the top end face of the first tank body are equipped with the second opening, and the bottom end end face of the second tank body is open equipped with third, the
Three openings are aligned and penetrate through with the second opening, and third opening is open less than second, then the inner cavity of the first tank body and the second tank body
Inner cavity pass through third opening with second opening air tight communication；
Second tank body it is interior it is intracavitary be equipped at intervals with by the inner cavity airtight partition of the second tank body at lower chamber, middle cavity and
The lower demarcation plate and upper demarcation plate of upper cavity；
First through hole is offered on the lower demarcation plate, the lower chamber and the middle cavity pass through the first through hole phase
Connection；
The second through-hole is offered on the upper demarcation plate, the middle cavity and the upper cavity pass through the second through-hole phase
Connection；
Connector is fixed in the upper cavity, the connector has airtight connecting cavity, the bottom of the connecting cavity
End is equipped with third through-hole, and the aperture of third through-hole and third through-hole and the second through-hole alignment and is passed through less than the aperture of the second through-hole
Logical, then connecting cavity is connected with the middle cavity by third through-hole and the second through-hole；Being equipped in the connecting cavity freely to live
The first dynamic check ball valve, the diameter of the first check ball valve is greater than the aperture of third through-hole, the third is completely covered
Through-hole；
The top end face of second tank body is equipped with the 4th opening, and the 4th opening is sealed by sealing-plug；Institute
Sealing-plug is stated equipped with fourth hole, and the bottom end of the fourth hole is connected to connecting cavity, the top of the fourth hole and
Ambient atmosphere is connected；
The floating ball that can be move freely is equipped in first tank body, it is inverse to be equipped with can move freely second in the lumen body
Only ball valve, the floating ball and the second check ball valve are connected by connector；The bottom end of the connector and the top of floating ball
Be fixedly linked, the top of the connector sequentially pass through upwards the second opening, third opening and first through hole and with the second check
Ball valve is fixedly linked；
The connector be equipped with can gas-tight seal third through-hole baffle, the baffle is located in the first tank body, and gear
Plate fixation is set on connector, and the third through-hole is located on the motion profile of the baffle；
The middle cavity is equipped with the second air inlet, and the inner end of second air inlet is connected to the inner cavity of middle cavity；
The lower chamber is equipped with second exhaust port, and the inner end of the second exhaust port is connected to the inner cavity of lower chamber.
Further, the top surface of the baffle is equipped with the gasket for sealing the third through-hole.
A kind of centrifugal pump, including the self-priming apparatus, and the centrifugal pump includes the pump housing, has pump in the pump housing
Chamber is rotationally equipped with eccentric pump shaft in the pump chamber, and one end that the eccentric pump shaft exposes to the pump housing is connected with driving dress
It sets；Fixing sleeve is equipped with eccentric rotor on the bias pump shaft, and the eccentric rotor is rotatably arranged in pump chamber；
The pump housing is equipped with the first air inlet and first row port, and first row port is located at the top of the pump housing, described
Airtight be embedded with can be along the connecting rod of pump chamber radially slided between the inner end and pump chamber of first row port；
The top of the connecting rod contradicts on the inner end of first row port, and the top end face of connecting rod covers first row port
Interior end opening；The bottom end of the connecting rod along pump chamber the circumference extended radially in pump chamber and be pushed against eccentric rotor top
On face, and the periphery of the eccentric rotor lower part is fitted tightly on the inner wall of pump chamber；The eccentric rotor and the connecting rod
By the pump chamber airtight partition at suction chamber and discharge chamber；
The inner end of first air inlet is connected to the suction chamber, and the inner end of the first row port in connecting rod by setting
The exhaust passage set is connected with discharge chamber；
The centrifugal pump is additionally provided with the self-priming apparatus；
And first opening in communication of the medium inlet of the pump housing and first tank body；
The outer end of the first row port is connected to the outer end of second air inlet；
The outer end of the second exhaust port is connected to the outer end of first air inlet.
Further, the arrival end of the pump housing is equipped with inlet flange, and preposition flange matches and fixes with inlet flange, preceding
It sets and is equipped with interface channel in flange, the bottom end of the interface channel is connected with the medium inlet of the pump housing, the interface channel
The first opening in communication on top and the bottom end of the first tank body.
Further, the interface channel being arranged radially along preposition flange.
Further, the bottom end of the first tank body is tip, and the tip is threadedly coupled with the interface channel.
Further, the eccentric rotor is fixed on pump shaft by eccentric shaft coupling, and eccentric shaft coupling is solid by screw
It is scheduled on pump shaft.
Further, the pump housing is fixed with connecting rod set along axial both ends, and the connecting rod, which is put on, to be offered along pump chamber
The limit sliding chutes being arranged radially, the connecting rod can be arranged in the limit along the both ends of pump housing axial direction and slide with radially sliding along pump chamber
In slot.
The beneficial effects of the utility model are embodied in:
1, the self-priming apparatus of the utility model can separate gas-liquid, carry out self-priming process automatically by pressure difference, and one
Aspect improves running efficiency of system, on the other hand also extends the service life of knockout drum.Structure is simple, small investment,
Long service life.
2, the centrifugal pump of the utility model can carry out gas-liquid separation to medium in advance, effectively mention due to having self-priming apparatus
High working efficiency.
Detailed description of the invention
Fig. 1 is centrifugal pump and self-priming apparatus fit structure schematic diagram；
Fig. 2 is the cross-sectional view of the pump housing and eccentric shaft coupling；
Fig. 3 is the working state schematic representation one of self-priming apparatus；
Fig. 4 is the working state schematic representation two of self-priming apparatus；
Fig. 5 is the working state schematic representation three of self-priming apparatus.
Specific embodiment
It is clearly and completely described below in conjunction with technical solution of the attached drawing to the utility model patent, it is clear that retouched
The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model
Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
In the description of the present invention, it should be noted that such as occur term " center ", "upper", "lower", " left side ",
The orientation or positional relationship of the instructions such as " right side ", "vertical", "horizontal", "inner", "outside" is orientation based on the figure or position
Relationship is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.This
Outside, such as there is term " first ", " second ", " third " are used for description purposes only, be not understood to indicate or imply relatively heavy
The property wanted.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, such as there is term
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Referring to attached drawing, the utility model provides a kind of self-priming apparatus, and the self-priming apparatus includes liquid separation tophan box 2, described
Liquid separation tophan box 2 includes the first tank body a of lower section and the second tank body b of top；The bottom end of first tank body a is equipped with to be entered for medium
First opening；Second tank body b is fixed on the top of the first tank body a, and the top end face of the first tank body a is equipped with the second opening, the
The bottom end end face of two tank body b is open equipped with third, and third opening is aligned and penetrates through with the second opening, and third opening is less than second
Opening, then the inner cavity of the first tank body a and the inner cavity of the second tank body b pass through third opening and the second opening air tight communication；
Wherein, the first tank body a and the second tank body b are fixed by screw bolt and nut, and the first tank in the present embodiment
Body a and the second tank body b coaxial arrangement.
The interior of the second tank body b intracavitary is equipped at intervals with the inner cavity airtight partition by the second tank body b into lower chamber b1, lumen
The lower demarcation plate c1 and upper demarcation plate c2 of body b2 and upper cavity b3；
Wherein, the outer edge of the outer edge of the lower demarcation plate c1 and the upper demarcation plate c2 are interior with the second tank body b
Wall is airtight to be fixedly connected, and upper demarcation plate c2 and lower demarcation plate c1 are parallel；Upper demarcation plate c2 and lower demarcation plate c1 are annular in shape,
And upper demarcation plate c2 and lower demarcation plate c1 coaxial arrangement.Lower chamber b1 is identical with the volume of middle cavity b2.
First through hole is offered on the lower demarcation plate c1, the lower chamber b1 and the middle cavity b2 pass through described first
Through-hole is connected；
The second through-hole is offered on the upper demarcation plate c2, the middle cavity b2 and the upper cavity b3 pass through described second
Through-hole is connected；
Wherein, first through hole and the second through-hole coaxially penetrate through.
Connector 7 is fixed in the upper cavity b3, the connector 7 has airtight connecting cavity, the connecting cavity
Bottom end be equipped with third through-hole, the aperture of the aperture of third through-hole less than the second through-hole, and third through-hole and the second through-hole alignment
And penetrate through, then connecting cavity is connected with the middle cavity b2 by third through-hole and the second through-hole；Being equipped in the connecting cavity can
The first check ball valve 26 moveing freely, the diameter of the first check ball valve 26 is greater than the aperture of third through-hole, to cover completely
Cover the third through-hole；
Wherein, the first check ball valve 26 is sphere.
The top end face of the second tank body b is equipped with the 4th opening, and the 4th opening is sealed by sealing-plug 27；
The sealing-plug 27 is equipped with fourth hole, and the bottom end of the fourth hole is connected to connecting cavity, the top of the fourth hole
End is connected with ambient atmosphere；
Wherein, the sealing-plug 27 is plug screw, i.e., the described sealing-plug 27 is connect with the 4th open-top screw thread.
In first tank body a is equipped with the floating ball 21 that can move freely, and being equipped in the middle cavity b2 can move freely
Second check ball valve 25, the floating ball 21 and the second check ball valve 25 are connected by connector 24；The bottom of the connector
It holds and is fixedly linked with the top of floating ball, the top of the connector successively slidably extends through the second opening, third opening upwards
It is fixedly linked with first through hole and with the second check ball valve；
Wherein, the connector 24 is cylindrical bar.And the connector 24 is along can the second opening, third opening and first logical
Hole sliding.The second check ball valve 25 is sphere.
The connector 24 be equipped with can gas-tight seal third through-hole baffle 22, the baffle 22 is located at the first tank body a
It is interior, and the fixation of baffle 22 is set on connector 24, the third through-hole is located on the motion profile of the baffle 22；
Wherein, baffle 22 is greater than third through-hole less than the second through-hole, then baffle 22 may pass through the second through-hole and be adjacent to but obstructed
The second through-hole is crossed, the baffle 22 can be moved up and down with connector 24, when baffle 22, which is moved to, is adjacent to third through-hole, institute
It states baffle 2 and the third through-hole is completely covered, to seal the third through-hole.
The middle cavity b2 is equipped with the second air inlet 29, the inner cavity company of the inner end of second air inlet 29 and middle cavity b2
It is logical；
The lower chamber b1 is equipped with second exhaust port 30, the inner end of the second exhaust port 30 and the inner cavity of lower chamber b1
Connection.
The top surface of the baffle 22 is equipped with the gasket 23 for sealing the third through-hole.
The utility model also provides a kind of centrifugal pump, and the centrifugal pump includes the self-priming apparatus, and the centrifugal pump packet
The pump housing 3 is included, there is pump chamber in the pump housing 3, eccentric pump shaft 5 is rotationally equipped in the pump chamber, and outside the eccentric pump shaft 5
The one end for being exposed to the pump housing 3 is connected with the driving device that driving heart pump axis 5 rotates；Fixing sleeve is equipped with bias on the bias pump shaft 5
Rotor 32；The eccentric rotor 32 is rotatably arranged in pump chamber；
Wherein, the cross section of the eccentric rotor 32 and the cross section of the pump chamber are 32 He of circle and eccentric rotor
Pump chamber is cylindrical shape, and the diameter of the eccentric rotor 32 is less than the diameter of the pump chamber.It is described bias pump shaft 5 with it is described
The central axis of pump chamber is parallel.The driving device can be the setting of the power such as motor.
The pump housing 3 is equipped with the first air inlet 36 and first row port 37, and first row port 37 is located at the upper of the pump housing 3
Portion, airtight be embedded with can be along the connecting rod 34 of pump chamber radially slided between the inner end and pump chamber of the first row port 37；
The top of the connecting rod 34 contradicts on the inner end of first row port 37, and the top end face covering of the connecting rod 34
The interior end opening of first row port 37；The bottom end of the connecting rod 34 extends radially in pump chamber along pump chamber and is pushed against bias
On the periphery on 32 top of rotor, and the periphery of 32 lower part of the eccentric rotor is fitted tightly on the inner wall of pump chamber；It is described
Eccentric rotor 32 and the connecting rod 34 are by the pump chamber airtight partition at suction chamber 61 and discharge chamber 62；
Wherein, the bottom end of the connecting rod 34 and 32 sliding contact of eccentric rotor, with the rotation of allowable offset rotor 32.
The inner end of first air inlet 36 is connected to the suction chamber 61；The inner end of the first row port 37 passes through company
The exhaust passage 33 being arranged in bar 34 is connected with discharge chamber 62；
Wherein, the bottom end of the exhaust passage 33 be connected to discharge chamber 62, the top of the exhaust passage 33 and described the
The inner end of one exhaust outlet 37 is connected, and the bottom end of the exhaust passage 33 is L shape.
The centrifugal pump is additionally provided with self-priming apparatus；
And first opening in communication of the medium inlet of the pump housing 3 and the first tank body a.
The outer end of the first row port 37 is connected to the outer end of the second air inlet 29；
The outer end of the second exhaust port 30 is connected to the outer end of first air inlet 36.
Wherein, the first row port 37 is connected to second air inlet 29 by pipeline；Second exhaust port 30 and
One air inlet 36 is connected to by another root canal road.
The arrival end of the pump housing 3 is equipped with inlet flange 7, and preposition flange 1 matches and fixes with inlet flange 7, preposition
Interface channel 11 is equipped in flange 1, the bottom end of the interface channel 11 is connected with the medium inlet of the pump housing 3, and the connection is logical
The first opening in communication on the top in road 11 and the bottom end of the first tank body a.
Being arranged radially along preposition flange 1 of interface channel 11.
The bottom end of first tank body a is tip 12, and the tip 12 is threadedly coupled with the interface channel 11.
The eccentric rotor is fixed on pump shaft by eccentric shaft coupling 4, and eccentric shaft coupling 4 is fixed by screws in pump
On axis.
The pump housing 3 is fixed with connecting rod set 35 along axial both ends, and the diameter along pump chamber is offered on the connecting rod set 35
To the limit sliding chutes of setting, along the axial both ends of the pump housing 3 limit can be arranged in radially sliding along pump chamber in the connecting rod 24
In sliding slot.
The inner wall of knockout drum 2 is equipped with gusset, and the gusset is set along the substantially symmetrical about its central axis of knockout drum 2
It sets.
Such as Fig. 1, the inlet flange Matching installation of preposition flange 1 and the pump housing 3 of centrifugal pump.Before knockout drum 2 is mounted on
It sets on flange 1, floating ball 21 is equipped in the first tank body, the top of floating ball 21 is intracorporal by connector 24 and the lumen of the second tank body
Non-return air valve 25 is connected, and baffle 22 and gasket 23 are housed on the connector 24 on floating ball 21, and the upper cavity of the second tank body is built-in
There is exhaust check ball valve 26.The upper cavity of second tank body is provided with plug screw 27, and exhaust fourth hole 28 is provided on plug screw 27.Under
The side of cavity is provided with second exhaust port 30, and the side of middle cavity is provided with the second air inlet 29.
Such as Fig. 2, the pump housing 3 has pump chamber, and eccentric rotor 32 is equipped in pump chamber, and eccentric rotor 32 is rotationally covered to be joined in bias
On axis device 4, eccentric shaft coupling 4 is fixed on pump shaft, and self-lubricating bearing 31 is housed between eccentric rotor 32 and eccentric shaft coupling 4.
Connecting rod 34 moves together with eccentric rotor 32, and when eccentric rotor rotates, connecting rod moves up and down in connecting rod set, and connecting rod 34 is mounted on
In connecting rod set 35, connecting rod set 35 is mounted on the pump housing 3.Connecting rod 34 moves up and down in the space (limit sliding chutes) of connecting rod set 35.
Through-hole 33 is provided on connecting rod.The pump housing 3 is equipped with the first air inlet 36 and first row port 37, and 4 sets of eccentric shaft coupling on pump shaft.
The eccentric rotor 4 of the centrifugal pump of the utility model is coaxially connected with centrifugal pump, using same power drive, without matching
Standby additional energy source.The first check ball valve 26 and the second check ball valve 25 in knockout drum 2 have the function of discharge gas,
And the gas in atmosphere is inhibited to enter in tank body, it prevents from flowing backward.
The working principle of the centrifugal pump of the utility model are as follows: such as Fig. 3, when being centrifuged pump startup, gas-liquid mixture is from preposition method
Medium inlet and interface channel 11 on orchid 1 enter in the first tank body a of knockout drum 2, and liquid deposition is the first tank body a's
Lower layer, and air floats, the air in lower chamber b1 enters the first air inlet 36 of the pump housing by second exhaust port 30, and
With the rotation counterclockwise of eccentric rotor 32, the air of suction chamber 61 enters the discharge chamber 62 of the pump housing, and by connecting rod 34
Exhaust passage 33 enter the pump housing first row port 37, and pass through in cavity b2 the second air inlet 29 enter in cavity b2.Due to
The fourth hole 28 of sealing-plug 27 leads directly to atmosphere, air pressure and atmospheric pressure in the connecting cavity at 26 place of first exhaust check ball valve
It is identical, when the air pressure in this connecting cavity is greater than the gravity of first exhaust check ball valve 26, first exhaust check ball valve 26
Rise, as shown in figure 4, air is drained into atmosphere by the fourth hole 28 of sealing-plug 27.With air pressure interior in connecting cavity
It reduces, first exhaust check ball valve 26 resets.With the rising of liquid level, floating ball 21 is greater than on connector 24 by the buoyancy of liquid
The air that is subject to of second exhaust check ball valve 25 pressure when, the baffle 22 on connector 24 rises to the first top tank body a,
Gasket 23 covers the third through-hole of the second tank body b, and the inner cavity of the first tank body a where floating ball 21 is closed, as shown in Figure 5.The
Two exhaust outlets 30 are communicated with the space that the second air inlet 29 is connected to, i.e. lower chamber b1 is connected to middle cavity b2, air pressure phase
Together, eccentric rotor 32 is in dry run, and self-priming is completed.
When liquid level drops to certain altitude, floating ball 21 declines, and the baffle 22 and non-return air valve 25 on connector 24 are therewith
Decline, the space (i.e. lower chamber and middle cavity) that the second exhaust port 30 of the second tank body b is connected to the second air inlet 29 are inverse
Air-stopping valve 25 separates, the air in gas-liquid mixture again by lower chamber b1 second exhaust port 30 enter the pump housing first into
Port 36 repeats the self-priming process of Fig. 3, to effectively separate to the gas-liquid of medium.
Medium in the present embodiment refers to the working media of centrifugal pump described in the utility model.
Content described in this specification embodiment is only enumerating for the way of realization conceived to utility model, this is practical new
The protection scope of type is not construed as being only limitted to the concrete form of embodiment statement, the protection scope of the utility model also and in
Those skilled in the art according to the utility model design it is conceivable that equivalent technologies mean.
Claims (8)
1. a kind of self-priming apparatus, it is characterised in that: the self-priming apparatus includes liquid separation tophan box, under the liquid separation tophan box includes
First tank body of side and the second tank body of top；The bottom end of first tank body is equipped with the first opening entered for medium；Second tank body
It is fixed on the top of the first tank body, the top end face of the first tank body is equipped with the second opening, and the bottom end end face of the second tank body is equipped with the
Three openings, third opening be directed ats and penetrate through with the second opening, and third opening is open less than second, then the inner cavity of the first tank body and
The inner cavity of second tank body passes through third opening and the second opening air tight communication；
The interior of second tank body intracavitary is equipped at intervals with the inner cavity airtight partition of the second tank body into lower chamber, middle cavity and epicoele
The lower demarcation plate and upper demarcation plate of body；
First through hole is offered on the lower demarcation plate, the lower chamber is connected with the middle cavity by the first through hole
It is logical；
The second through-hole is offered on the upper demarcation plate, the middle cavity is connected with the upper cavity by second through-hole
It is logical；
Connector is fixed in the upper cavity, the connector has airtight connecting cavity, and the bottom end of the connecting cavity is set
There is a third through-hole, the aperture of third through-hole and third through-hole and the second through-hole alignment and is penetrated through less than the aperture of the second through-hole, then
Connecting cavity is connected with the middle cavity by third through-hole and the second through-hole；Can move freely the is equipped in the connecting cavity
One check ball valve, the diameter of the first check ball valve is greater than the aperture of third through-hole, the third through-hole is completely covered；
The top end face of second tank body is equipped with the 4th opening, and the 4th opening is sealed by sealing-plug；It is described close
Blocking is equipped with fourth hole, and the bottom end of the fourth hole is connected to connecting cavity, the top and the external world of the fourth hole
Atmosphere is connected；
It is equipped with the floating ball that can be move freely in first tank body, is equipped with the second check ball that can be move freely in the lumen body
Valve, the floating ball and the second check ball valve are connected by connector；The bottom end of the connector and the top of floating ball are fixed
Be connected, the top of the connector sequentially pass through upwards the second opening, third opening and first through hole and with the second check ball valve
It is fixedly linked；
The connector be equipped with can gas-tight seal third through-hole baffle, the baffle is located in the first tank body, and baffle is consolidated
Surely it is set on connector, the third through-hole is located on the motion profile of the baffle；
The middle cavity is equipped with the second air inlet, and the inner end of second air inlet is connected to the inner cavity of middle cavity；
The lower chamber is equipped with second exhaust port, and the inner end of the second exhaust port is connected to the inner cavity of lower chamber.
2. a kind of self-priming apparatus as described in claim 1, it is characterised in that: the top surface of the baffle is equipped with described for sealing
The gasket of third through-hole.
3. a kind of centrifugal pump, it is characterised in that: including the described in any item self-priming apparatus of such as claims 1 or 2, the centrifugal pump
Including the pump housing, there is pump chamber in the pump housing, eccentric pump shaft is rotationally equipped in the pump chamber, and the eccentric pump shaft is exposed
Driving device is connected in one end of the pump housing；Fixing sleeve is equipped with eccentric rotor on the bias pump shaft, and the eccentric rotor can turn
It is arranged in pump chamber dynamicly；
The pump housing is equipped with the first air inlet and first row port, and first row port is located at the top of the pump housing, and described first
Airtight be embedded with can be along the connecting rod of pump chamber radially slided between the inner end and pump chamber of exhaust outlet；
The top of the connecting rod contradicts on the inner end of first row port, and the top end face covering first row port of connecting rod is interior
End opening；The bottom end of the connecting rod along pump chamber the periphery extended radially in pump chamber and be pushed against eccentric rotor top
On, and the periphery of the eccentric rotor lower part is fitted tightly on the inner wall of pump chamber；The eccentric rotor and the connecting rod will
The pump chamber airtight partition is at suction chamber and discharge chamber；
The inner end of first air inlet is connected to the suction chamber；The inner end of the first row port passes through setting in connecting rod
Exhaust passage is connected with discharge chamber；
The centrifugal pump is additionally provided with the self-priming apparatus；
And first opening in communication of the medium inlet of the pump housing and first tank body；
The outer end of the first row port is connected to the outer end of second air inlet；
The outer end of the second exhaust port is connected to the outer end of first air inlet.
4. a kind of centrifugal pump as claimed in claim 3, it is characterised in that: the arrival end of the pump housing is equipped with inlet flange, preceding
It sets flange to match and fix with inlet flange, interface channel, the bottom end of the interface channel and the pump housing is equipped in preposition flange
Medium inlet be connected, the first opening in communication on the bottom end of the top of the interface channel and the first tank body.
5. a kind of centrifugal pump as claimed in claim 4, it is characterised in that: the interface channel is set along the radial direction of preposition flange
It sets.
6. a kind of centrifugal pump as claimed in claim 5, it is characterised in that: the bottom end of the first tank body is tip, and the tip
It is threadedly coupled with the interface channel.
7. a kind of centrifugal pump as claimed in claim 6, it is characterised in that: the eccentric rotor is fixed on by eccentric shaft coupling
On pump shaft, and eccentric shaft coupling is fixed by screws on pump shaft.
8. a kind of centrifugal pump as claimed in claim 7, it is characterised in that: the pump housing is fixed with connecting rod along axial both ends
Set, the connecting rod put on the limit sliding chutes being arranged radially offered along pump chamber, and the connecting rod can edge along the both ends of pump housing axial direction
Pump chamber is arranged in the limit sliding chutes with radially sliding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494949.5U CN208268080U (en) | 2018-04-09 | 2018-04-09 | A kind of self-priming apparatus and a kind of centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820494949.5U CN208268080U (en) | 2018-04-09 | 2018-04-09 | A kind of self-priming apparatus and a kind of centrifugal pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208268080U true CN208268080U (en) | 2018-12-21 |
Family
ID=64677708
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820494949.5U Expired - Fee Related CN208268080U (en) | 2018-04-09 | 2018-04-09 | A kind of self-priming apparatus and a kind of centrifugal pump |
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| Country | Link |
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| CN (1) | CN208268080U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457862A (en) * | 2018-04-09 | 2018-08-28 | 浙江工业大学 | A kind of self-priming apparatus and a kind of centrifugal pump |
-
2018
- 2018-04-09 CN CN201820494949.5U patent/CN208268080U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108457862A (en) * | 2018-04-09 | 2018-08-28 | 浙江工业大学 | A kind of self-priming apparatus and a kind of centrifugal pump |
| CN108457862B (en) * | 2018-04-09 | 2024-03-26 | 浙江工业大学 | Self-priming device and centrifugal pump |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181221 Termination date: 20210409 |
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| CF01 | Termination of patent right due to non-payment of annual fee |