CN110131211A - A kind of centrifugal pump body and centrifugal pump - Google Patents
A kind of centrifugal pump body and centrifugal pump Download PDFInfo
- Publication number
- CN110131211A CN110131211A CN201910543363.2A CN201910543363A CN110131211A CN 110131211 A CN110131211 A CN 110131211A CN 201910543363 A CN201910543363 A CN 201910543363A CN 110131211 A CN110131211 A CN 110131211A
- Authority
- CN
- China
- Prior art keywords
- centrifugal pump
- hole
- pump body
- water seal
- pump housing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 97
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 21
- 230000002787 reinforcement Effects 0.000 claims abstract description 5
- 230000007704 transition Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 24
- 238000010276 construction Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000005553 drilling Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 22
- 239000002826 coolant Substances 0.000 description 16
- 238000000034 method Methods 0.000 description 10
- 238000007493 shaping process Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 101100165177 Caenorhabditis elegans bath-15 gene Proteins 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The present invention provides a kind of centrifugal pump body and centrifugal pump, centrifugal pump body is divided into the shaft connecting bearing perforation of pump housing bearing hole, water seal hole in the lateral direction, and pump housing bearing hole and water seal hole are between left and right every setting；It further include the reinforcement land in the outside in shaft connecting bearing perforation, the position in pump housing bearing hole and water seal hole transition in axial direction, the top position for reinforcing land is equipped with lower concane gap, is also equipped with reservoir in the downside for reinforcing land on centrifugal pump body；The inside for reinforcing land is machined with annular groove between pump housing bearing hole and water seal hole, and the groove depth satisfaction of annular groove is connected to lower concane gap, and to form the gas vent inside and outside the connection pump housing in communicating position, and the groove depth satisfaction of annular groove is connected to reservoir；The processing of gas vent and being connected to for reservoir are completed by one annular groove of processing, being connected to for exhaust hole machined and reservoir is respectively completed compared to inclined hole twice is bored by drilling machine, manufacturing procedure can be simplified, shorten pump housing processing duration, processing cost is lower.
Description
Technical field
The invention belongs to auto pump technical field more particularly to a kind of centrifugal pump bodies and centrifugal pump.
Background technique
As depicted in figs. 1 and 2, centrifugal pump mainly includes flange 1, shaft connecting bearing 2, centrifugal pump body 3, water seal assembly 4, pump
Seat 5, impeller 6, sealing ring 7, the components such as blanking cover 8, the working principle of centrifugal pump is: the drive of engine crankshaft belt wheel be mounted on from
Belt pulley rotation on heart pump flange 1, belt pulley drive shaft connecting bearing 2 and impeller 6 to rotate, the coolant liquid in engine from from
Heart pump water inlet 11 enters centrifugal pump and supplies impeller 6, and coolant liquid is thrown away by high-speed rotating impeller 6, pressure at 6 center of impeller
It reduces, forms pressure difference at centrifugal pump water inlet 11 and 6 center of impeller, coolant liquid is inhaled into impeller 6 under the action of pressure difference, real
Coolant liquid is got rid of the minor air cell to centrifugal pump casing under the influence of centrifugal force when rotating by the reciprocation cycle of existing coolant liquid, impeller 6,
Certain pressure is generated simultaneously, then coolant liquid is flowed out from water outlet.
Water seal assembly 4 is the primary sealing member of centrifugal pump, and the sealing of water seal assembly 4 is mainly by water seal movable ring and water seal
Band sealing between stationary ring, centrifugal pump inevitably seep between water seal movable ring and water sealing stationary ring during operation
Coolant liquid is leaked out, therefore, the coolant liquid of the storage leakage of reservoir 9 is set on centrifugal pump.Enter in centrifugal pump from water tank
The gas that the gas or centrifugal pump being mingled in coolant liquid generate during the work time cannot be discharged in time, will cause pump cavitation,
Therefore gas vent is designed in centrifugal pump and excludes gas in water pump in time, prevent Cavitation Occurred in Centrifugal Pumps.
The structure of gas vent and reservoir 9 on centrifugal pump body 3 is formed as shown in Fig. 2, processing on centrifugal pump body 3
Two inclined holes 10, one of inclined hole 10 are connected to the perforation of shaft connecting bearing 2 and are exposed to be formed in engine operating environments and be vented
Hole, another inclined hole 10 realize that reservoir 9 is connected to the perforation of shaft connecting bearing 2, this kind of pump housing is processing pump housing axis in processing
After hole, water seal hole and water seal mounting surface, the processing of gas vent and 9 leakage hole of reservoir is completed by drilling machine rat holing 10, is added
Work process is more, and pump housing machining period is long, higher cost.
Summary of the invention
The purpose of the present invention is to provide a kind of centrifugal pump bodies, long to solve prior art middle pump body machining period, at
This higher problem, the present invention also provides a kind of centrifugal pumps, long with the pump housing machining period for solving centrifugal pump in the prior art,
The problem of higher cost.
To achieve the above object, the technical solution of centrifugal pump body of the invention are as follows:
A kind of centrifugal pump body, comprising:
Shaft connecting bearing perforation, is extended, and be divided into the pump for cooperating with shaft connecting bearing in the lateral direction in left-right direction
Body bearing hole, the water seal hole for installing water seal assembly, pump housing bearing hole and water seal hole are between left and right every setting；
Reinforce land, the position of pump housing bearing hole and water seal hole transition is on outside, axial direction in shaft connecting bearing perforation；
The top position for reinforcing land is equipped with lower concane gap, is also equipped with reservoir in the downside for reinforcing land on centrifugal pump body；
The inside for reinforcing land is machined with annular groove between pump housing bearing hole and water seal hole, and the groove depth of annular groove meets and lower concane gap
Connection, to form the gas vent inside and outside the connection pump housing in communicating position, and the groove depth satisfaction of annular groove is connected to reservoir.
The beneficial effects of the present invention are: when processing centrifugal pump body, need to only reinforce on the inside of land and in pump housing axis
Annular groove is processed between bearing bore and water seal hole, to be connected to form gas vent with lower concane gap, realizes the connection inside and outside the pump housing, side
Just the discharge of intracorporal gas is pumped, also, the groove depth of annular groove can satisfy and be connected to liquid outlet groove, satisfaction deposits the collection of coolant liquid
Storage；The processing of gas vent and being connected to for reservoir are completed by one annular groove of processing, bores inclined hole point twice compared to by drilling machine
Being connected to for hole machined and reservoir Wan Cheng be vented, manufacturing procedure can be simplified, shorten the pump housing and process duration, processing cost compared with
It is low.
Further, opening is equipped with towards side where pump housing bearing hole in the top position for reinforcing land on centrifugal pump body
Blind hole, blind hole intersect with land is reinforced, and blind hole with the part composition lower concane gap reinforcing land and intersect, blind hole
Top hole wall forms the dustproof construction blocked above gas vent.
The utility model has the advantages that the top hole wall of blind hole forms the dustproof construction blocked above gas vent, gas vent exposure is avoided
In the working environment of engine, so that the foreign matter in environment be avoided to enter in the pump housing to be deposited in water seal movable ring and water seal is quiet
Between ring, so that water seal foreign matter when height operates easily is scratched water seal movable ring and water sealing stationary ring leads to water seal failure and leak.
Further, the blind hole is formed when centrifugal pump body is cast.
The utility model has the advantages that facilitating the machine-shaping for realizing blind hole.
The reservoir is formed when centrifugal pump body is cast.
The utility model has the advantages that facilitating the machine-shaping of reservoir.
The pump housing bearing hole and the water seal hole are formed by turnery processing, the annular groove also by turnery processing and
At.
The utility model has the advantages that also annular groove turning is completed in turning pump housing bearing hole and water seal hole, for centrifugal pump body
For processing, clamped one time can complete the processing of pump housing bearing hole, water seal hole and annular groove, simplify centrifugal pump body
Manufacturing procedure shortens the pump housing and processes duration, and processing cost is lower.
The reservoir is the sector structure being arranged at an angle along the circumferential direction that shaft connecting bearing is perforated.
The utility model has the advantages that can reduce reservoir under the premise of guaranteeing reservoir volume in centrifugal pump body in axis connecting shaft
Perforation extending direction the space occupied is held, the structure size of centrifugal pump body is reduced.
To achieve the above object, the technical solution of centrifugal pump of the invention are as follows:
A kind of centrifugal pump, comprising:
Centrifugal pump body；
Pump seat；
Sealing ring is provided between centrifugal pump body and pump seat, pump housing inner cavity is collectively formed in centrifugal pump body and pump seat；
Shaft connecting bearing, is installed in centrifugal pump body and the one end for protruding into pump housing inner cavity is equipped with impeller；
Water seal assembly, is mounted between shaft connecting bearing and centrifugal pump body, for guaranteeing between shaft connecting bearing and centrifugal pump body
Sealing；
Wherein: centrifugal pump body includes:
Shaft connecting bearing perforation, is extended, and be divided into the pump for cooperating with shaft connecting bearing in the lateral direction in left-right direction
Body bearing hole, the water seal hole for installing water seal assembly, pump housing bearing hole and water seal hole are between left and right every setting；
Reinforce land, the position of pump housing bearing hole and water seal hole transition is on outside, axial direction in shaft connecting bearing perforation；
The top position for reinforcing land is equipped with lower concane gap, is also equipped with reservoir in the downside for reinforcing land on centrifugal pump body；
The inside for reinforcing land is machined with annular groove between pump housing bearing hole and water seal hole, and the groove depth of annular groove meets and lower concane gap
Connection, to form the gas vent inside and outside the connection pump housing in communicating position, and the groove depth satisfaction of annular groove is connected to reservoir.
The beneficial effects of the present invention are: process centrifugal pump centrifugal pump body when, only need to reinforce land on the inside of and
Annular groove is processed between pump housing bearing hole and water seal hole, to be connected to form gas vent with lower concane gap, is realized inside and outside the pump housing
Connection, facilitate the discharge for pumping intracorporal gas, also, the groove depth of annular groove can satisfy and be connected to liquid outlet groove, meet to cooling
The collection of liquid stores；The processing of gas vent and being connected to for reservoir are completed by one annular groove of processing, is bored compared to by drilling machine
Inclined hole is respectively completed being connected to for exhaust hole machined and reservoir twice, can simplify manufacturing procedure, shortens the pump housing and processes duration, adds
Cost is relatively low for work.
Further, opening is equipped with towards side where pump housing bearing hole in the top position for reinforcing land on centrifugal pump body
Blind hole, blind hole intersect with land is reinforced, and blind hole with the part composition lower concane gap reinforcing land and intersect, blind hole
Top hole wall forms the dustproof construction blocked above gas vent.
The utility model has the advantages that the top hole wall of blind hole forms the dustproof construction blocked above gas vent, gas vent exposure is avoided
In the working environment of engine, so that the foreign matter in environment be avoided to enter in the pump housing to be deposited in water seal movable ring and water seal is quiet
Between ring, so that water seal foreign matter when height operates easily is scratched water seal movable ring and water sealing stationary ring leads to water seal failure and leak.
Further, the blind hole is formed when centrifugal pump body is cast.
The utility model has the advantages that facilitating the machine-shaping for realizing blind hole.
The reservoir is formed when centrifugal pump body is cast.
The utility model has the advantages that facilitating the machine-shaping of reservoir.
The pump housing bearing hole and the water seal hole are formed by turnery processing, the annular groove also by turnery processing and
At.
The utility model has the advantages that also annular groove turning is completed in turning pump housing bearing hole and water seal hole, for centrifugal pump body
For processing, clamped one time can complete the processing of pump housing bearing hole, water seal hole and annular groove, simplify centrifugal pump body
Manufacturing procedure shortens the pump housing and processes duration, and processing cost is lower.
The reservoir is the sector structure being arranged at an angle along the circumferential direction that shaft connecting bearing is perforated.
The utility model has the advantages that can reduce reservoir under the premise of guaranteeing reservoir volume in centrifugal pump body in axis connecting shaft
Perforation extending direction the space occupied is held, the structure size of centrifugal pump body is reduced.
Detailed description of the invention
Fig. 1 is the side view of centrifugal pump in the prior art；
Fig. 2 is the A-A cross-sectional view of centrifugal pump in Fig. 1；
Fig. 3 is the side view of centrifugal pump in the present invention；
Fig. 4 is the B-B cross-sectional view of centrifugal pump in Fig. 3；
Fig. 5 is the cross-sectional view of centrifugal pump body in Fig. 4.
In figure: 1- flange；2- shaft connecting bearing；3- centrifugal pump body；4- water seal assembly；5- pump seat；6- impeller；7- sealing
Circle；8- blanking cover；9- reservoir；10- inclined hole；11- centrifugal pump water inlet；13- blind hole；14- annular groove；15- reservoir；The 16- pump housing
Bearing hole；17- water seal hole；18- centrifugal pump body；19- water seal assembly；20- toothed wheel；21- shaft connecting bearing；22- blanking cover；23-
Impeller；24- sealing ring；25- pump seat.
Specific embodiment
The embodiment of centrifugal pump of the invention is described further with reference to the accompanying drawing.
The structure of centrifugal pump is as shown in Figure 3 and Figure 4, including centrifugal pump body 18 and pump seat 25, centrifugal pump body 18 and pump
Sealing ring 24 is provided between seat 25, and centrifugal pump body 18 and pump seat 25 are collectively formed pump housing inner cavity, in centrifugal pump body
It is coated with shaft connecting bearing 21, also, shaft connecting bearing 21 protrudes into one end of pump housing inner cavity and is equipped with impeller 23, the pump housing is also pacified in inner cavity
Equipped with water seal assembly 19, water seal assembly 19 includes water seal movable ring and water sealing stationary ring, is provided between water seal movable ring and water sealing stationary ring
Band, centrifugal pump guarantee the sealing between shaft connecting bearing and centrifugal pump body by water seal assembly 19.It is stretched in shaft connecting bearing 21
One end of pump housing inner cavity is equipped with toothed wheel 20 out, and engine crankshaft belt wheel drives the toothed wheel 20 being mounted on shaft connecting bearing to revolve
Turn, so that the rotation by toothed wheel 20 drives shaft connecting bearing 21 to rotate.
As described by using fig. 3 and fig. 5, centrifugal pump body 18 includes the shaft connecting bearing perforation extended in left-right direction, shaft connecting bearing
Perforation is divided into pump housing bearing hole 16 and water seal hole 17 in the lateral direction, and pump housing bearing hole 16 and water seal hole 17 are added by turning
Work forms, wherein pump housing bearing hole 16 is used to cooperate with shaft connecting bearing 21, and water seal hole 17 is used to install water seal assembly 19, the pump housing
Bearing hole 16 and water seal hole 17 are between left and right every setting.
The outside of shaft connecting bearing perforation is provided with reinforcement land, also, reinforces land and is in the pump housing in the axial direction
Bearing hole 16 forms blind with the 18 one casting of top position and centrifugal pump body at the position of 17 transition of water seal hole, reinforcing land
Hole 13, towards 16 place side of pump housing bearing hole, blind hole 13 intersects with land is reinforced for the opening of blind hole 13, also, blind hole 13 with
The part for reinforcing land intersection forms lower concane gap.Add between pump housing bearing hole 16 and water seal hole 17 in the inside for reinforcing land
Work has annular groove 14, and annular groove 14 is formed by turnery processing, and the groove depth satisfaction of annular groove 14 is connected to the lower recess notch of blind hole 13, with
Communicating position formed connection the pump housing inside and outside gas vent, when in water tank enter water pump in coolant liquid in be mingled with gas or
The gas that water pump generates during the work time can be discharged from gas vent and blind hole 13, so as to prevent centrifugal pump from vapour occurs
Erosion.
In addition, the opening of blind hole 13 is towards 16 place side of pump housing bearing hole, the extending direction of gas vent and prolonging for blind hole 13
Stretch that direction is vertical, the top hole wall of blind hole 13 forms the dustproof construction blocked above gas vent, so as to effectively prevent
Foreign matter in environment enters in centrifugal pump and is deposited between water sealing stationary ring and water seal movable ring, avoids water seal assembly 19 in the running
Foreign matter scratches water seal movable ring and water sealing stationary ring, causes the seal failure of water seal assembly 19 and coolant liquid is caused to leak.
The lower position of the reinforcement land of centrifugal pump body 18 and 18 one casting of centrifugal pump body form reservoir 15, store up
Liquid bath 15 is the sector structure being arranged at an angle along the circumferential direction that shaft connecting bearing is perforated, in the premise for guaranteeing 15 volume of reservoir
Under can reduce reservoir 15 and perforate extending direction the space occupied in centrifugal pump body 18 in shaft connecting bearing, reduce centrifugation
Pump the structure size of the pump housing 18.Also, the groove depth satisfaction of annular groove 14 is connected to form fluid flow paths with reservoir 15, reservoir
End part seal be provided with blanking cover 22, so that reservoir 15 be enable to be used to contain the coolant liquid of leakage.Not with centrifugal pump
Disconnected operating, the sealing effect decline of the band between the water seal movable ring and water sealing stationary ring of water seal assembly 19, coolant liquid will be from water
It seals between the water seal movable ring and water sealing stationary ring of assembly 19 and flow to the fluid flow paths that annular groove 14 is connected to reservoir 15, then pass through
It crosses fluid flow paths and flows into reservoir 15, to avoid the water clock of coolant liquid.
After the completion of the pump housing casting of centrifugal pump of the invention, by the lathe of its clamping, pump housing bearing hole 16, water are being processed
When sealing of hole 17, the processing of annular groove 14 is completed by turning process, on the one hand, pump housing bearing hole 16 only can be realized as by turning
Processing, the processing of water seal hole 17, the connection of gas vent and the connection of liquid outlet groove, can complete without multiple clamping, saving
Manufacturing procedure；On the other hand the connection that gas vent just only can be achieved at the same time by this process of turning annular groove 14 and liquid out
The connection of slot also saves manufacturing procedure, shortens the pump housing and processes duration, processing cost is lower.
In the present embodiment, opening is provided with towards pump housing bearing hole institute in the top position for reinforcing land on centrifugal pump body
Blind hole in side, blind hole intersect with land is reinforced, and the part of blind hole intersected with reinforcement land constitutes lower concane gap, blind hole
Top hole wall, which is formed, blocks dustproof construction above gas vent, in other embodiments, when land is reinforced in casting at the top of it
Position forms a recess, is machined to be connected to recess by annular groove when processing annular groove, no longer set in the top of gas vent at this time
Dustproof construction is set, when being mingled with the gas that gas or water pump generate during the work time in the coolant liquid entered in water pump in water tank
Body can be expelled directly out from gas vent.
In the present embodiment, blind hole is formed when centrifugal pump body is cast, in other embodiments, in centrifugal pump body casting
Lower concane gap is only formed, and is bolted and blocks in the top of gas vent on centrifugal pump body after casting and forming
Dustproof construction.
In the present embodiment, the reservoir is formed when centrifugal pump body is cast, and in other embodiments, reservoir can also be with
By being formed after centrifugal pump body casting and forming by turnery processing.
In the present embodiment, pump housing bearing hole and water seal hole are formed by turnery processing, annular groove also by turnery processing and
At in other embodiments, pump housing bearing hole and water seal hole, which pass through, to be milled into, and annular groove is also by being milled into.
The specific embodiment of centrifugal pump body of the invention, the centrifugal pump in the specific structure and centrifugal pump of centrifugal pump body
Pump body structure is identical, repeats no more.
Claims (7)
1. a kind of centrifugal pump body, characterized in that include:
Shaft connecting bearing perforation, is extended, and be divided into the pump for cooperating with shaft connecting bearing in the lateral direction in left-right direction
Body bearing hole, the water seal hole for installing water seal assembly, pump housing bearing hole and water seal hole are between left and right every setting；
Reinforce land, the position of pump housing bearing hole and water seal hole transition is on outside, axial direction in shaft connecting bearing perforation；
The top position for reinforcing land is equipped with lower concane gap, is also equipped with reservoir in the downside for reinforcing land on centrifugal pump body；
The inside for reinforcing land is machined with annular groove between pump housing bearing hole and water seal hole, and the groove depth of annular groove meets and lower concane gap
Connection, to form the gas vent inside and outside the connection pump housing in communicating position, and the groove depth satisfaction of annular groove is connected to reservoir.
2. centrifugal pump body according to claim 1, characterized in that in the top position for reinforcing land on centrifugal pump body
Equipped with opening towards the blind hole of side where pump housing bearing hole, blind hole intersects with land is reinforced, and blind hole intersects with reinforcement land
Part constitute the lower concane gap, the top hole wall of blind hole forms the dustproof construction blocked above gas vent.
3. centrifugal pump body according to claim 2, characterized in that the blind hole is formed when centrifugal pump body is cast.
4. centrifugal pump body according to any one of claim 1-3, characterized in that the reservoir is in centrifugal pump body
It is formed when casting.
5. centrifugal pump body according to any one of claim 1-3, characterized in that the pump housing bearing hole and the water
Sealing of hole is formed by turnery processing, and the annular groove is formed also by turnery processing.
6. centrifugal pump body according to any one of claim 1-3, characterized in that the reservoir is along shaft connecting bearing
The sector structure that the circumferential direction of perforation is arranged at an angle.
7. a kind of centrifugal pump, characterized in that include:
Centrifugal pump body, such as centrifugal pump body of any of claims 1-6；
Pump seat；
Sealing ring is provided between centrifugal pump body and pump seat, pump housing inner cavity is collectively formed in centrifugal pump body and pump seat；
Shaft connecting bearing, is installed in centrifugal pump body and the one end for protruding into pump housing inner cavity is equipped with impeller；
Water seal assembly, is mounted between shaft connecting bearing and centrifugal pump body, for guaranteeing between shaft connecting bearing and centrifugal pump body
Sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543363.2A CN110131211B (en) | 2019-06-21 | 2019-06-21 | Pump body of centrifugal pump and centrifugal pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910543363.2A CN110131211B (en) | 2019-06-21 | 2019-06-21 | Pump body of centrifugal pump and centrifugal pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110131211A true CN110131211A (en) | 2019-08-16 |
| CN110131211B CN110131211B (en) | 2024-09-27 |
Family
ID=67578920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910543363.2A Active CN110131211B (en) | 2019-06-21 | 2019-06-21 | Pump body of centrifugal pump and centrifugal pump |
Country Status (1)
| Country | Link |
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| CN (1) | CN110131211B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114412633A (en) * | 2022-01-24 | 2022-04-29 | 湖南机油泵股份有限公司 | Cooling water pump with double water storage cavities |
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| CN110131211B (en) | 2024-09-27 |
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