CN108150428A - A kind of agricultural irrigation is used with the water pump for adjusting hydraulic pressure size - Google Patents
A kind of agricultural irrigation is used with the water pump for adjusting hydraulic pressure size Download PDFInfo
- Publication number
- CN108150428A CN108150428A CN201711401328.4A CN201711401328A CN108150428A CN 108150428 A CN108150428 A CN 108150428A CN 201711401328 A CN201711401328 A CN 201711401328A CN 108150428 A CN108150428 A CN 108150428A
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- Prior art keywords
- impeller
- fixed
- water
- pump shaft
- grade
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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
- F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D1/06—Multi-stage 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
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
- F04D29/126—Shaft sealings using sealing-rings 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
- F04D29/18—Rotors
- F04D29/22—Rotors specially for centrifugal pumps
- F04D29/2205—Conventional flow pattern
- F04D29/2222—Construction and assembly
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of agricultural irrigations to use with the water pump for adjusting hydraulic pressure size, its structure includes fixed underpan, firm banking, water-output flange disk, water-in flange disk, volute body, rotation axis, electric power storage box, drop handle, mark, motor, the water-output flange disk is fixed at volute body rear and front end with water-in flange disk using welding manner, the volute body is connected with water-output flange disk, water-in flange disk using interference fit, beneficial effects of the present invention：The centering of impeller channel and volute body is adjusted by adjusting set, even if indivedual impeller channels and volute body have slightly deviation, also can guarantee on the overall performance of pump without influence, runner precision is high, hydraulic loss is small, the level of efficiency of pump is improved, extends the service life of equipment, is conducive to promote market.
Description
Technical field
The present invention is a kind of water pump of agricultural irrigation with adjusting hydraulic pressure size, belongs to field of agricultural irrigation.
Background technology
Field irrigation is an indispensable job in agricultural, particularly in the season for lacking rainwater, this work
Work is just more frequent, and general field irrigation is all in river, pulls water out inside water channel and irrigated to be delivered to farmland, is made
Water pump is mostly unadjustable hydraulic pressure, while complicated, and maintenance difficulty is big, and irrigation efficiency is low.
But existing technology passes through the width of pumping chambers at different levels and pair of the adjusting control impeller channel of rotor vibration movement
Middle precision, hydraulic loss is big, and level of efficiency is low.
Invention content
It to be used in view of the deficienciess of the prior art, it is an object of the present invention to provide a kind of agricultural irrigations with adjusting hydraulic pressure size
Water pump, to solve centering of the existing technology by the width of pumping chambers at different levels and the adjusting control impeller channel of rotor vibration movement
The problem of precision, hydraulic loss is big, and level of efficiency is low.
To achieve these goals, the present invention is to realize by the following technical solutions：A kind of agricultural irrigation uses band to adjust
The water pump of water pressure size, structure include fixed underpan, firm banking, water-output flange disk, water-in flange disk, volute body, turn
Moving axis, electric power storage box, drop handle, mark, motor, the firm banking are fixed with multiple fixing bolts, the spiral case
Body bottom is fixed at using nut on the left of firm banking upper end, and the water-output flange disk is consistent with water-in flange disk size,
The water-output flange disk is fixed at volute body rear and front end, the volute body with water-in flange disk using welding manner
It is connected with water-output flange disk, water-in flange disk using interference fit, the fixed underpan bottom is set using welding manner fixation
On the right side of firm banking upper end, the motor bottom is fixed at fixed underpan upper end, the electric power storage using welding manner
Box is fixed at motor front end and is used with it and is electrically connected using nut, and the drop handle bottom is fixed at using welding manner
At the top of motor, the mark rear end is pasted on motor front end using bonding way fixation, and described rotation axis one end is consolidated
Surely it is embedded in inside motor, the rotation axis other end connects with volute body, and the motor passes through rotation axis and spiral case
Body using matching flexible connection, the volute body by fixed screw, first order impeller, second level impeller, third level impeller,
Fourth stage impeller, level V impeller, the 6th grade of impeller, the 7th grade of impeller, the 8th grade of impeller, the 9th grade of impeller, the pump housing, bearing portion
Part, the first balance weight, water suction sealing ring, pump shaft, adjusting set, sealing ring, balance ring, the second balance weight, drive end bearing, rotor
Component forms, and described pump shaft one end is connected with rotor part, and the pump shaft other end is fixedly embedded in parts of bearings,
The pump shaft matches flexible connection with parts of bearings, rotor part, and the drive end bearing is fixed using fitting mode
Pump shaft outer surface is sleeved on, second balance weight is consistent with the first balance block size, second balance weight and first
Balance weight is fixed at pump shaft both sides, the first order impeller and second level impeller, third level impeller, fourth stage impeller, the
Consistent, the described first order impeller of Pyatyi impeller, the 6th grade of impeller, the 7th grade of impeller, the 8th grade of impeller, the 9th grade of impeller size
With second level impeller, third level impeller, fourth stage impeller, level V impeller, the 6th grade of impeller, the 7th grade of impeller, the 8th grade of leaf
Wheel, the 9th grade of impeller fixation are welded in pump shaft both ends, and adjusting is fixed between the fourth stage impeller and level V impeller
Set, the adjusting set are gap-matched with fourth stage impeller, level V impeller, the first order impeller to the 9th grade of leaf
Sealing ring is equipped between wheel, the balance ring is fixed at both ends on the left of pump shaft and interference fit is used to connect with it, institute
The pump housing stated is fixed at pump shaft lower right-hand side, and the water suction sealing ring is fixed at both ends on the right side of pump shaft and was used with it
It is full of mating connection.
Further, the parts of bearings is by spring pad, draw ring, axle sleeve, silk plug, interstage sleeve, bearing bore, sealing ring, frame
Body, retaining ring composition.
Further, the spring pad is fixed at pump shaft both ends and is gap-matched with it, and the silk plug is adopted
Pump shaft outer surface is fixed at fitting mode.
Further, axle sleeve is fixed with inside the silk plug, the axle sleeve fixing sleeve is together in pump shaft, the pump
Axis is gap-matched with silk plug, axle sleeve.
Further, sealing ring and interstage sleeve are fixed with inside the bearing bore, there are two the sealing ring is set altogether
And size is consistent.
Further, the sealing ring is vertical on the right side of silk plug, and the interstage sleeve is respectively arranged on pump shaft both ends, described
Framework be fixed at below pump shaft using manner.
Further, retaining ring is fixed with inside the framework, the retaining ring is fixed at below silk plug.
Advantageous effect
A kind of agricultural irrigation of the present invention is used with the water pump for adjusting hydraulic pressure size, and impeller channel and spiral case are adjusted by adjusting set
The centering of body even if indivedual impeller channels and volute body have slightly deviation, also can guarantee on the overall performance of pump without influence, runner
Precision is high, hydraulic loss is small, improves the level of efficiency of pump, extends the service life of equipment, is conducive to promote market.
Description of the drawings
Upon reading the detailed description of non-limiting embodiments with reference to the following drawings, other feature of the invention,
Objects and advantages will become more apparent upon：
Fig. 1 is a kind of structure diagram of the agricultural irrigation of the present invention with the water pump for adjusting hydraulic pressure size；
Fig. 2 is a kind of volute body internal structure chart of the agricultural irrigation of the present invention with the water pump for adjusting hydraulic pressure size；
Fig. 3 is the parts of bearings internal structure chart of volute body of the present invention；
Fig. 4 is the A in Fig. 2.
In figure：Fixed underpan -1, firm banking -2, water-output flange disk -3, water-in flange disk -4, volute body -5, rotation axis -
6th, electric power storage box -7, drop handle -8, mark -9, motor -10, fixed screw -501, first order impeller -502, second level impeller -
503rd, third level impeller -504, fourth stage impeller -505, level V impeller -506, the 6th grade of impeller -507, the 7th grade of impeller -
508th, the 8th grade of impeller -509, the 9th grade of impeller -5010, the pump housing -5011, parts of bearings -5012, the first balance weight -5013, suction
Watertight seal ring -5014, pump shaft -5015, adjusting set -5016, sealing ring -5017, balance ring -5018, the second balance weight -5019,
Drive end bearing -5020, rotor part -5021, spring pad -50121, draw ring -50122, axle sleeve -50123, silk plug -50124,
Interstage sleeve -50125, bearing bore -50126, sealing ring -50127, framework -50128, retaining ring -50129.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, with reference to
Specific embodiment, the present invention is further explained.
- Fig. 4 is please referred to Fig.1, the present invention provides a kind of agricultural irrigation and uses with the pump technology scheme for adjusting hydraulic pressure size：Its
Structure include fixed underpan 1, firm banking 2, water-output flange disk 3, water-in flange disk 4, volute body 5, rotation axis 6, electric power storage box 7,
Drop handle 8, mark 9, motor 10, the firm banking 2 are fixed with multiple fixing bolts, 5 bottom of volute body
It is fixed on the left of 2 upper end of firm banking using nut, the water-output flange disk 3 is consistent with 4 size of water-in flange disk, described
Water-output flange disk 3 and water-in flange disk 45 rear and front end of volute body, the volute body 5 are fixed at using welding manner
It is connected with water-output flange disk 3, water-in flange disk 4 using interference fit, 1 bottom of fixed underpan is fixed using welding manner
On the right side of 2 upper end of firm banking, 10 bottom of motor is fixed at 1 upper end of fixed underpan using welding manner, described
Electric power storage box 7 be fixed at 10 front end of motor using nut and used with it and be electrically connected, 8 bottom of drop handle use welding side
Formula is fixed at 10 top of motor, and 9 rear end of mark is pasted on 10 front end of motor using bonding way fixation, described
6 one end of rotation axis it is fixedly embedded inside motor 10,6 other end of rotation axis connects with volute body 5, the electricity
Machine 10 is used with volute body 5 by rotation axis 6 and matches flexible connection, and the volute body 5 is by fixed screw 501, the first order
Impeller 502, second level impeller 503, third level impeller 504, fourth stage impeller 505, level V impeller 506, the 6th grade of impeller
507th, the 7th grade of impeller 508, the 8th grade of impeller 509, the 9th grade of impeller 5010, the pump housing 5011, parts of bearings 5012, first balance
Block 5013, water suction sealing ring 5014, pump shaft 5015, adjusting set 5016, sealing ring 5017, balance ring 5018, the second balance weight
5019th, drive end bearing 5020, rotor part 5021 form, and described 5015 one end of pump shaft is connected with rotor part 5021,
5015 other end of pump shaft is fixedly embedded in parts of bearings 5012, and the pump shaft 5015 and parts of bearings 5012 turn
Subassembly 5021 matches flexible connection, the drive end bearing 5020 using fitting mode fixing sleeve together in pump shaft 5015 outside
Surface, second balance weight 5019 is consistent with 5013 size of the first balance weight, second balance weight 5019 and first
Balance weight 5013 is fixed at 5015 both sides of pump shaft, the first order impeller 502 and second level impeller 503, third level impeller
504th, fourth stage impeller 505, level V impeller 506, the 6th grade of impeller 507, the 7th grade of impeller 508, the 8th grade of impeller 509,
Nine grades of 5010 sizes of impeller are consistent, the first order impeller 502 and second level impeller 503, third level impeller 504, the fourth stage
Impeller 505, level V impeller 506, the 6th grade of impeller 507, the 7th grade of impeller 508, the 8th grade of impeller 509, the 9th grade of impeller
5010 fixations are welded in 5015 both ends of pump shaft, and adjusting is fixed between the fourth stage impeller 505 and level V impeller 506
Set 5016, the adjusting set 5016 is gap-matched with fourth stage impeller 505, level V impeller 506, the first order
Impeller 502 is fixed at pump shaft 5015 to sealing ring 5017, the balance ring 5018 is equipped between the 9th grade of impeller 5010
Left side both ends and with its use interference fit connect, the pump housing 5011 is fixed at 5015 lower right-hand side of pump shaft, described
Water suction sealing ring 5014 is fixed at 5015 right side both ends of pump shaft and interference fit is used to connect with it, the parts of bearings
5012 by spring pad 50121, draw ring 50122, axle sleeve 50123, silk plug 50124, interstage sleeve 50125, bearing bore 50126, sealing ring
50127th, framework 50128, retaining ring 50129 form, and the spring pad 50121 is fixed at 5015 both ends of pump shaft and is adopted with it
With clearance fit, the silk plug 50124 is fixed at 5015 outer surface of pump shaft, the silk plug 50124 using fitting mode
Inside is fixed with axle sleeve 50123, and 50123 fixing sleeve of axle sleeve is together in pump shaft 5015, the pump shaft 5015 and silk plug
50124th, axle sleeve 50123 is gap-matched, and sealing ring 50127 and interstage sleeve are fixed with inside the bearing bore 50126
50125, the sealing ring 50127 set altogether there are two and size it is consistent, the sealing ring 50127 is vertical at silk plug
50124 right sides, the interstage sleeve 50125 are respectively arranged on 5015 both ends of pump shaft, and the framework 50128 is fixed using manner
Set on 5015 lower section of pump shaft, retaining ring 50129 is fixed with inside the framework 50128, the retaining ring 50129 is fixed
Set on 50124 lower section of silk plug.
Sealing ring 5017 described in this patent is a kind of band annular seal jaggy, places it in the annular groove of sleeve
Interior, sleeve rotates together with axis, and sealing ring is pressed rear possessed elasticity by notch and is pushed against on the inner hole wall of static element,
It can play the role of sealing.
It is carrying out in use, impeller channel is adjusted with volute body 5 in by adjusting set 5016, even if indivedual impeller streams
Road and volute body 5 have slightly deviation, also can guarantee on the overall performance of pump without influence, runner precision is high, hydraulic loss is small, improves
The level of efficiency of pump, the outer round surface of adjusting set 5016 are provided with left-turn spiral slot with the inner surface of sealing ring 5017, not only
Sealing function is played, also reduces abrasion of the particulate matter to part in medium, the service life of equipment is extended, is conducive to promote
Market.
The present invention solves existing technology and passes through the width of pumping chambers at different levels and the adjusting control impeller stream of rotor vibration movement
The problem of accuracy of alignment in road, hydraulic loss is big, and level of efficiency is low, being combined with each other by above-mentioned component of the invention, runner essence
Degree is high, hydraulic loss is small, improves the level of efficiency of pump, extends the service life of equipment, is conducive to promote market.
The basic principles, main features and the advantages of the invention have been shown and described above, for this field skill
For art personnel, it is clear that the present invention is not limited to the details of above-mentioned exemplary embodiment, and without departing substantially from the present invention spirit or
In the case of essential characteristic, the present invention can be realized in other specific forms.Therefore, in all respects, should all incite somebody to action
Embodiment regards exemplary as, and is non-limiting, the scope of the present invention by appended claims rather than on state
Bright restriction, it is intended that including all changes falling within the meaning and scope of the equivalent requirements of the claims in the present invention
It is interior.Any reference numeral in claim should not be considered as to the involved claim of limitation.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in each embodiment can also be properly combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (7)
1. a kind of agricultural irrigation is used with the water pump for adjusting hydraulic pressure size, structure includes fixed underpan (1), firm banking (2), goes out
Water ring flange (3), water-in flange disk (4), volute body (5), rotation axis (6), electric power storage box (7), drop handle (8), mark (9),
Motor (10), it is characterised in that：
The firm banking (2) is fixed with multiple fixing bolts, and the volute body (5) bottom is fixed at using nut
On the left of firm banking (2) upper end, the water-output flange disk (3) water-output flange consistent, described with water-in flange disk (4) size
Disk (3) and water-in flange disk (4) are fixed at volute body (5) rear and front end using welding manner, the volute body (5) and
Water-output flange disk (3), water-in flange disk (4) are connected using interference fit, and the fixed underpan (1) bottom uses welding manner
It is fixed on the right side of firm banking (2) upper end, the motor (10) bottom is fixed at fixed underpan (1) using welding manner
Upper end, the electric power storage box (7) are fixed at motor (10) front end and are used with it and be electrically connected using nut, the drop handle
(8) bottom is fixed at using welding manner at the top of motor (10), and the mark (9) rear end is fixed using bonding way
It is pasted on motor (10) front end, the fixedly embedded rotation axis (6) internal in motor (10), described in the rotation axis (6) one end
The other end connects with volute body (5), and the motor (10) is used with volute body (5) by rotation axis (6) and matches activity
Connection；
The volute body (5) is by fixed screw (501), first order impeller (502), second level impeller (503), third level impeller
(504), fourth stage impeller (505), level V impeller (506), the 6th grade of impeller (507), the 7th grade of impeller (508), the 8th grade
Impeller (509), the 9th grade of impeller (5010), the pump housing (5011), parts of bearings (5012), the first balance weight (5013), water suction are close
Seal ring (5014), pump shaft (5015), adjusting set (5016), sealing ring (5017), balance ring (5018), the second balance weight
(5019), drive end bearing (5020), rotor part (5021) composition；
Described pump shaft (5015) one end is connected with rotor part (5021), and the pump shaft (5015) other end is fixedly embedded
In parts of bearings (5012), the pump shaft (5015) matches activity with parts of bearings (5012), rotor part (5021)
Connection, the drive end bearing (5020) using fitting mode fixing sleeve together in pump shaft (5015) outer surface, described second
Balance weight (5019) is consistent with the first balance weight (5013) size, second balance weight (5019) and the first balance weight
(5013) pump shaft (5015) both sides, the first order impeller (502) and second level impeller (503), third level leaf are fixed at
Take turns (504), fourth stage impeller (505), level V impeller (506), the 6th grade of impeller (507), the 7th grade of impeller (508), the 8th
Grade impeller (509), the 9th grade of impeller (5010) size are consistent, the first order impeller (502) and second level impeller (503),
Third level impeller (504), fourth stage impeller (505), level V impeller (506), the 6th grade of impeller (507), the 7th grade of impeller
(508), the 8th grade of impeller (509), the 9th grade of impeller (5010) fixation are welded in pump shaft (5015) both ends, the fourth stage leaf
Adjusting set (5016), the adjusting set (5016) and fourth stage leaf are fixed between wheel (505) and level V impeller (506)
Wheel (505), level V impeller (506) are gap-matched, the first order impeller (502) to the 9th grade of impeller (5010) it
Between be equipped with sealing ring (5017), the balance ring (5018) is fixed at both ends on the left of pump shaft (5015) and was used with it
It is full of mating connection, the pump housing (5011) is fixed at pump shaft (5015) lower right-hand side, the water suction sealing ring (5014)
It is fixed at both ends on the right side of pump shaft (5015) and interference fit is used to connect with it.
2. a kind of agricultural irrigation according to claim 1 is used with the water pump for adjusting hydraulic pressure size, it is characterised in that：Described
Parts of bearings (5012) is by spring pad (50121), draw ring (50122), axle sleeve (50123), silk plug (50124), interstage sleeve
(50125), bearing bore (50126), sealing ring (50127), framework (50128), retaining ring (50129) composition.
3. a kind of agricultural irrigation according to claim 2 is used with the water pump for adjusting hydraulic pressure size, it is characterised in that：Described
Spring pad (50121) is fixed at pump shaft (5015) both ends and is gap-matched with it, and the silk plug (50124) is using set
Conjunction mode is fixed at pump shaft (5015) outer surface.
4. a kind of agricultural irrigation according to claim 2 is used with the water pump for adjusting hydraulic pressure size, it is characterised in that：Described
Axle sleeve (50123) is fixed with inside silk plug (50124), the axle sleeve (50123) fixing sleeve is described together in pump shaft (5015)
Pump shaft (5015) be gap-matched with silk plug (50124), axle sleeve (50123).
5. a kind of agricultural irrigation according to claim 2 is used with the water pump for adjusting hydraulic pressure size, it is characterised in that：Described
Sealing ring (50127) and interstage sleeve (50125) are fixed with inside bearing bore (50126), the sealing ring (50127) is equipped with altogether
Two and size it is consistent.
6. a kind of agricultural irrigation according to claim 2 is used with the water pump for adjusting hydraulic pressure size, it is characterised in that：Described
Sealing ring (50127) is vertical on the right side of silk plug (50124), and the interstage sleeve (50125) is respectively arranged on pump shaft (5015) both ends,
The framework (50128) is fixed at using manner below pump shaft (5015).
7. a kind of agricultural irrigation according to claim 2 is used with the water pump for adjusting hydraulic pressure size, it is characterised in that：Described
Retaining ring (50129) is fixed with inside framework (50128), the retaining ring (50129) is fixed under silk plug (50124)
Side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401328.4A CN108150428A (en) | 2017-12-22 | 2017-12-22 | A kind of agricultural irrigation is used with the water pump for adjusting hydraulic pressure size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711401328.4A CN108150428A (en) | 2017-12-22 | 2017-12-22 | A kind of agricultural irrigation is used with the water pump for adjusting hydraulic pressure size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108150428A true CN108150428A (en) | 2018-06-12 |
Family
ID=62465016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711401328.4A Pending CN108150428A (en) | 2017-12-22 | 2017-12-22 | A kind of agricultural irrigation is used with the water pump for adjusting hydraulic pressure size |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108150428A (en) |
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| CN107218248A (en) * | 2017-08-08 | 2017-09-29 | 内蒙古鄂尔多斯联合化工有限公司 | A kind of high pressure urea metro-methylamine pump rotor structure |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102562610A (en) * | 2010-12-22 | 2012-07-11 | 上海连成（集团）有限公司 | Novel amphibious mining centrifugal multistage pump |
| CN102606525A (en) * | 2012-03-27 | 2012-07-25 | 上海阿波罗机械股份有限公司 | Balance structure of rotor for starting water feeding pump |
| CN105756944A (en) * | 2014-12-13 | 2016-07-13 | 登封德盛耐火材料有限公司 | High-efficient simple multiple-stage centrifugal pump for spraying refractory material |
| CN205036618U (en) * | 2015-10-14 | 2016-02-17 | 江苏海狮泵业制造有限公司 | Starting feed water pump adjusting collar for nuclear power station |
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| CN206753915U (en) * | 2017-05-02 | 2017-12-15 | 深圳德尔特科技有限公司 | A kind of multi-purpose sectional type multi-stage pump of a pump |
| CN107218248A (en) * | 2017-08-08 | 2017-09-29 | 内蒙古鄂尔多斯联合化工有限公司 | A kind of high pressure urea metro-methylamine pump rotor structure |
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Application publication date: 20180612 |
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| RJ01 | Rejection of invention patent application after publication |