CN107218229A - High Concentration Brine immersible pump and application method - Google Patents
High Concentration Brine immersible pump and application method Download PDFInfo
- Publication number
- CN107218229A CN107218229A CN201710351554.XA CN201710351554A CN107218229A CN 107218229 A CN107218229 A CN 107218229A CN 201710351554 A CN201710351554 A CN 201710351554A CN 107218229 A CN107218229 A CN 107218229A
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- Prior art keywords
- flange
- water
- fresh water
- pump
- high concentration
- 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.)
- Pending
Links
- 239000012267 brine Substances 0.000 title claims abstract description 17
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000013505 freshwater Substances 0.000 claims abstract description 40
- 238000002347 injection Methods 0.000 claims abstract description 12
- 239000007924 injection Substances 0.000 claims abstract description 12
- 125000006850 spacer group Chemical group 0.000 claims abstract description 10
- 230000001174 ascending effect Effects 0.000 claims abstract description 8
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000003466 welding Methods 0.000 claims abstract description 6
- 241001131796 Botaurus stellaris Species 0.000 claims description 14
- 238000009826 distribution Methods 0.000 claims description 5
- 230000004907 flux Effects 0.000 claims description 2
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 claims description 2
- 238000003780 insertion Methods 0.000 claims description 2
- 230000037431 insertion Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000002787 reinforcement Effects 0.000 claims 1
- 229910052736 halogen Inorganic materials 0.000 abstract description 8
- 150000002367 halogens Chemical class 0.000 abstract description 3
- 229920006395 saturated elastomer Polymers 0.000 abstract description 3
- 238000002425 crystallisation Methods 0.000 description 5
- 230000008025 crystallization Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 235000011164 potassium chloride Nutrition 0.000 description 3
- 239000001103 potassium chloride Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 230000003014 reinforcing effect Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 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
- 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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
-
- 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
- F04D29/007—Details, component parts, or accessories 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/406—Casings; Connections of working fluid 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
High Concentration Brine immersible pump and application method, it is characterised in that structure：Thin flange, which is placed on adpting flange notch face, constitutes annular groove, and radial symmetric installs clear water ascending pipe between upper adpting flange, thin flange；By the radial port of four column tubes to the center of circle, the welding of corresponding aperture root edge, lower end and the spacer flanger of upper end and thin flange are welded, thin flange macropore is communicated with column tube cavity, and in upper adpting flange groove, and upper adpting flange inner ring has multiple equally distributed delivery ports, it is collectively forming after product water channel, fresh water flush axle and is mixed into working liquids in the upper casing at impeller；Application method:Under the conditions of the originally meter per second of water-carrying capacity 1.2, when injection fresh water amount ratio is 14.35%, by this proportional arrangement fresh water entrance opening dimension and pump specification:Flow 200m3/ h pump, configuration water inlet bore 65mm.Advantages of the present invention：In the halogen underwater operation of nearly saturated concentration, the pump housing will frequently be changed, rinses, repaired.
Description
Technical field
The present invention relates to immersible pump manufacture, a kind of immersible pump crystallized in bittern for density 1.23.
Background technology
In the crystallization bittern of density 1.23, serious sylvite crystallization occurs soon in immersible pump operation will fill up, admittedly in pump
The situation of dead part, pump is unable to operation.The usual pump body structure of immersible pump is：It is casting, center of circle intracavitary installation company to enter water hull
Pump shaft, four entity muscle support upper and lower flange, and upper flange installs housing, and lower flange connection motor, bittern enters from brace rod space
Enter upper flange hole, into impeller.Because bittern concentration is high, crystalline solid is full of all sites in the pump housing quickly, blocks part not
Can work.
The content of the invention
It is an object of the invention to provide a kind of High Concentration Brine immersible pump, enter water hull increase fresh water import, make high in the pump housing
Concentration bittern is diluted, and solves the problem of the Crystallization Plugging pump housing.
This High Concentration Brine immersible pump, including the pump housing upper casing, enter water hull, it is characterised in that thin flange is placed on connection
Annular groove is constituted on flange notch face, radial symmetric installs clear water ascending pipe between upper adpting flange, thin flange；By four column tubes
Radial port to the center of circle, the welding of corresponding aperture root edge, lower end and the spacer flanger of upper end and thin flange are welded, thin flange macropore with
Column tube cavity is communicated, and in upper adpting flange groove, and upper adpting flange inner ring has multiple equally distributed delivery ports,
It is collectively forming after product water channel, fresh water flush axle and is mixed into working liquids in the upper casing at impeller；Application method:Originally
Under the conditions of the meter per second of water-carrying capacity 1.2, when injection fresh water amount ratio is 14.35%, advised by this proportional arrangement fresh water entrance opening dimension and pump
Lattice:Flow 200m3/ h pump, configuration water inlet bore 65mm.
Advantages of the present invention：In the halogen underwater operation of nearly saturated concentration, the pump housing will frequently be changed, rinses, repaired.The present invention
Increase fresh water import on water hull is entered, be diluted working liquids _ High Concentration Brine in the pump housing, eliminate or slow down crystallization, so that
The problem of solving the Crystallization Plugging pump housing.Structure innovation：The upper adpting flange of water inlet shell component has annular groove, and structure is welded with thin flange
Into product water channel, and upper flange inner ring has multiple equally distributed delivery ports, outer shroud to have symmetrical fresh water import；Four columns
The radial port of pipe is to the center of circle, upper and lower distribution, and pressure fresh water is rinsed to axle, and the water of slotted eye is strong to axle top in upper adpting flange
Power is rinsed, and is diluted the liquid into wheel space.Propose the guarantee of the halogen quality of production：Fresh water entrance caliber size is advised with pump
Lattice are matched to be calculated, it is ensured that injection fresh water amount ratio is 14.35%, little far below sylvite production specification regulation injection fresh water amount
It is both that in the operation or work standard of lifting bittern, production efficiency can be made to be significantly improved again in 20%, or else with often carrying pump
Cleaning, saves labour, developing fee is used and time, the life-span of extension pump, therefore reduce production cost.
Brief description of the drawings
Fig. 1 is the cut-open view of final assembly of High Concentration Brine immersible pump；
Fig. 2 is into water shell component sectional view；
Fig. 3 is Fig. 2 water inlet shell component C-C views；
Fig. 4 is thin flange schematic diagram；
Fig. 5 is upper flange schematic diagram；
Fig. 6 is the present invention by the flux matched water pump water injection rate of water filling and Water Flooding Pipeline Diameter reference table.
Embodiment
Piece mark title in Fig. 1：Upper casing 1, shaft assembly 2, impeller 3, column tube 4, shell component 5 of intaking, thin flange 6, clearly
Water ascending pipe 7, upper adpting flange 8.Label bearing block 2.3 in Fig. 2, upper adpting flange 8, spacer flanger 5.1, lower adpting flange
5.2nd, short tube 5.3.
This High Concentration Brine immersible pump, including upper casing 1, water inlet shell component 5 in the pump housing, are shown in Fig. 1, upper casing 1, spacer flanger
5.1 endoporus install impeller 3 and shaft assembly 2, it is characterised in that thin flange 6 is placed on the notch face of adpting flange 8 and constitutes annular groove,
Radial symmetric installs clear water ascending pipe 7 between thin flange 6, upper adpting flange 8, by four radial ports of column tube 4 to the center of circle, on
The welding of corresponding aperture root edge, lower end and spacer flanger 5.1 with thin flange 6 is held to weld；The macropore of thin flange 6 and the inner chamber phase of column tube 4
It is logical, and in the upper groove of adpting flange 8 and the internal ring wall of upper adpting flange 8 has multiple equally distributed delivery ports, be collectively forming
It is mixed into after product water channel, fresh water flush axle with working liquids in the upper casing 1 at impeller.
The water inlet structure of shell component 5：See Fig. 2, water inlet shell component 5 includes spacer flanger 5.1, the lower adpting flange of same specification
5.2, spacer flanger 5.1 does not have hole with column tube corresponding position, and the two center of circle endoporus passes through the vertical welding Cheng Ping of short tube 5.3 between
Row structure；There is shaft orientation reinforcing rib spacer flanger 5.1, the periphery of lower adpting flange 5.2 relatively, are welded with the excircle of two flanges；
Lower adpting flange 5.2 is fixed with motor.
Shaft assembly 2 includes axle, is mounted on an axle the bearing first 2.1 in portion, the bearing second 2.2 in bearing block 2.3 and axle bottom
Shaft coupling 2.4.The outer wall of bearing block 2.3, radially with four tube walls of column tube 4 without being welded at mouth, makes it be suspended in closely by reinforcing bar
The bottom circle centre position of thin flange 6, Auxiliary support axle, it is ensured that axle is in the center of circle.
See Fig. 3,4, there is hole in the center of circle of thin flange 6, is ring-type, nearly four macropores of circle centre position radial distribution, four columns of correspondence
The position of pipe, aperture is less than the caliber of column tube 4, remote circle centre position radial distribution screwed hole；Fig. 3 shows column tube 4 and thin flange 6
Position, fastened during assembling together with upper adpting flange 8 by bolt with upper casing 1.
See Fig. 5, upper adpting flange 8 and the annular of thin flange 6 are isometrical, and circle center hole enters bittern, and there is vertical elevation at circle center hole edge
Vertical stand that recurred in the middle part of 8 fresh water outlets mouthful, ring radius is uniformly reserved into ring wall and in aperture to right angle is intersected with ring wall
Face, the height of vertical elevation is less than flange thickness, referring to Fig. 2：The upper annular groove face of adpting flange 8 is buckled on thin flange 6, two methods
Blue endoporus circumference is mutually welded, periphery circle is mutually welded, and thin flange 6 collectively forms fresh water annular groove, and the upper annular groove periphery of adpting flange 8 is equal
Cloth screwed hole, it is consistent with the screwed hole of thin flange 6；Two symmetrical holes are radially bored on the upper periphery wall of adpting flange 8, hole inwall has
Screw thread and annular groove outer wall insertion, symmetrical holes connection clear water ascending pipe 7.
See Fig. 1,2, the upper and lower place of the same axis of the tube wall of column tube 4 gets out radial port, each radial port radian and height one
Cause
High Concentration Brine immersible pump of the present invention, by pump body structure increase injection fresh water mouthful and passage, user scene bittern
Density value：1.23, produce specification regulation injection fresh water amount by sylvite and be not more than 20%, application method：It is characterized in that fresh water enters
Mouth size and the injection fresh water amount ratio of pump specification matching are calculated as 14.35%, by this proportional arrangement respective model pump and fresh water
Ascending pipe dimensions, and flow, the pressure for injecting water are adjusted according to presence states, in general, in the meter per second of running water 1.2
Under flow conditions, flow 200m3/ h pump should inject fresh water not less than 26m3/ h, no more than 40m3/ h, it is both economical.
Embodiment：Flow 200m3/ h infusion enters fresh water amount and should be less than 200*20%=40m3/h
The density of water pump output bittern should inject fresh water when remaining less than 1.2：
ρIt is mixed=mAlways/VAlways=(mHalogen+mWater)/(VHalogen+VWater)………1
VHalogen+VWater=200 ... ... 2
If ρIt is mixed=1.2 (g/L)
2 substitutions 1 are solved into VWater=26 (m3)
That is flow 200m3/ h pump should inject fresh water not less than 26m3/ h, no more than 40m3/h
ρIt is mixed--- the brine densities of water pump output
mAlways--- the bittern gross mass of water pump output
mWater--- contain water quality in the bittern of water pump output
VAlways--- the bittern cumulative volume of water pump output
VWater--- volume containing fresh water in the bittern of water pump output
3 atmospheric pressure of running water operating pressure, or 30 meters of posts.Flow 200m3/ h pump, fresh water water inlet pipe is claimed using popular
" two and half pipes " are to have internal diameter 65mm.Take mean flow rate in internal diameter D=65mm=0.065m, pipe to take V=1.2m/S, can calculate
The flow of two cun of semicanals
Q=V* (3.14D2/ 4)=1.2* (3.14*0.0652/ 4)=3.982*10-3m3/ S=3.982L/S=238.92
L/min=14.335m3/h
The flow of two pipes：14.335*2=28.67m3/h
Fresh water injects ratio：28.67 200 × 100%=14.35% of ÷
Fresh water injection ratio is less than 20%.
Density p=(m after dilutionHalogen+mWater)/(VHalogen+VWater)
=[(200-28.67) × 1.23+28.67]/200
=[210.7359+28.67]/200
=239.4059/200
=1.197
It is computed, flow 200m3/ h pump should inject fresh water not less than 26m3/ h, no more than 40m3/h。
Density after dilution is less than 1.2 saturated densities.
By flow 200m3/ h pump should inject fresh water in 26m3/ h~40m3/ h requirements, matching water pump and Water Flooding Pipeline Diameter reference
Table
Note：Because the flow velocity of tap water pipe line reclaimed water is affected by various factors, flow velocity is different, and flow is also different, therefore table
In numerical value it is only for reference.
Claims (7)
1. a kind of High Concentration Brine immersible pump, including upper casing in the pump housing, enter water hull, it is characterised in that thin flange (6) company of being placed on
Annular groove is constituted on acting flange (8) notch face, radial symmetric installs clear water ascending pipe between thin flange (6), upper adpting flange (8)
(7)；By the radial port of four column tubes (4) to the center of circle, the corresponding aperture root edge welding of upper end and thin flange (6), lower end are with
Between flange (5.1) weld；Thin flange (6) macropore is communicated with column tube (4) inner chamber, and in upper adpting flange (8) groove, upper company
Acting flange (8) inner ring has multiple equally distributed delivery ports, is collectively forming after product water channel, fresh water flush axle mixed with working liquids
Close and enter in the upper casing (1) at impeller.
2. High Concentration Brine immersible pump according to claim 1, it is characterised in that there is hole in thin flange (6) center of circle, is ring-type,
Nearly circle centre position four macropores of radial distribution, the position of four column tubes of correspondence, aperture is less than column tube (4) caliber, remote circle centre position
Radial distribution screwed hole.
3. High Concentration Brine immersible pump according to claim 1, it is characterised in that upper adpting flange (8) and thin flange (6)
Annular is isometrical, and circle center hole enters bittern, and circle center hole edge has vertical elevation into ring wall and equal to right angle is intersected with ring wall in aperture
Even to reserve recurrence vertical elevation in the middle part of 8 fresh water outlets mouthful, ring radius, the height of vertical elevation is less than flange thickness, upper connection
Flange (8) annular groove face is buckled on thin flange (6), two flange endoporus circumference are mutually welded, periphery circle mutually weld, thin flange (6) with
Two facades collectively form fresh water annular groove, the uniform screwed hole in upper adpting flange (8) annular groove periphery, the screwed hole with thin flange (6)
Unanimously；Two symmetrical holes are radially bored on upper adpting flange (8) periphery wall, inner hole wall has screw thread and annular groove outer wall insertion；Symmetrically
Hole connection clear water ascending pipe (7).
4. High Concentration Brine immersible pump according to claim 1, it is characterised in that on the same axis of column tube (4) tube wall,
Lower place gets out radial port, each radial port radian and highly consistent.
5. High Concentration Brine immersible pump according to claim 1, it is characterised in that the structure of water inlet shell component (5)：It is middle
Flange (5.1), lower adpting flange (5.2), spacer flanger (5.1) and column tube corresponding position do not have hole, the two center of circle endoporus along it
Between by short tube (5.3) vertical welding into parallel construction；There is axle spacer flanger (5.1), the periphery of lower adpting flange (5.2) relatively
To reinforcement, welded with the excircle of two flanges；Lower adpting flange (5.2) is fixed with motor.
6. a kind of application method of High Concentration Brine immersible pump as claimed in claim 1, it is characterised in that injection fresh water amount ratio
When example is 14.35%, by the specification of this injection fresh water amount ratio match fresh water caliber entrance opening dimension and pump：Flow 200m3/h's
Pump, configuration internal diameter 65mm fresh water water inlet pipe, under the meter per second flow condition of running water 1.2, injection fresh water amount be 26m3/h~
40m3/h。
7. the application method of High Concentration Brine immersible pump according to claim 6, it is characterised in that by fresh water stream should be injected
The reference table of flux matched water pump and Water Flooding Pipeline Diameter:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351554.XA CN107218229A (en) | 2017-05-18 | 2017-05-18 | High Concentration Brine immersible pump and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710351554.XA CN107218229A (en) | 2017-05-18 | 2017-05-18 | High Concentration Brine immersible pump and application method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107218229A true CN107218229A (en) | 2017-09-29 |
Family
ID=59944293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710351554.XA Pending CN107218229A (en) | 2017-05-18 | 2017-05-18 | High Concentration Brine immersible pump and application method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107218229A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259692A (en) * | 2019-06-26 | 2019-09-20 | 内蒙古五湖泵业有限公司 | A kind of Submersible pump |
| WO2022110141A1 (en) * | 2020-11-30 | 2022-06-02 | 镇江福泰克流体技术有限公司 | Upright brine transfer pump having high lift |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1046027A (en) * | 1962-05-11 | 1966-10-19 | Silverson Machines Ltd | Improvements in immersion mixing apparatus |
| CN101187378A (en) * | 2007-12-13 | 2008-05-28 | 姚庆余 | Underground brine collection and transport dedicated pump and its production method |
| CN101392767A (en) * | 2008-11-12 | 2009-03-25 | 镇江正汉泵业有限公司 | Vertical halogen transmission pump for removing crystal in pump by freshwater soaking |
| CN201582145U (en) * | 2009-11-09 | 2010-09-15 | 镇江正汉泵业有限公司 | Deep well brine extracting submersible pump |
| CN203023126U (en) * | 2012-11-13 | 2013-06-26 | 长沙山水泵业制造有限公司 | Structure for delaying salt deposition of pump body of water pump |
| CN104196498A (en) * | 2014-08-21 | 2014-12-10 | 青海盐湖工业股份有限公司 | Brine drilling and exploiting system and method for dynamic cleaning and salt deposition resisting in closed cycle mode |
| CN205423348U (en) * | 2016-02-25 | 2016-08-03 | 上海高田制泵有限公司 | Chemical industry crystallization centrifugal pump |
| CN206903880U (en) * | 2017-05-18 | 2018-01-19 | 沈阳潜水泵业有限公司 | High concentration brine immersible pump |
-
2017
- 2017-05-18 CN CN201710351554.XA patent/CN107218229A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1046027A (en) * | 1962-05-11 | 1966-10-19 | Silverson Machines Ltd | Improvements in immersion mixing apparatus |
| CN101187378A (en) * | 2007-12-13 | 2008-05-28 | 姚庆余 | Underground brine collection and transport dedicated pump and its production method |
| CN101392767A (en) * | 2008-11-12 | 2009-03-25 | 镇江正汉泵业有限公司 | Vertical halogen transmission pump for removing crystal in pump by freshwater soaking |
| CN201582145U (en) * | 2009-11-09 | 2010-09-15 | 镇江正汉泵业有限公司 | Deep well brine extracting submersible pump |
| CN203023126U (en) * | 2012-11-13 | 2013-06-26 | 长沙山水泵业制造有限公司 | Structure for delaying salt deposition of pump body of water pump |
| CN104196498A (en) * | 2014-08-21 | 2014-12-10 | 青海盐湖工业股份有限公司 | Brine drilling and exploiting system and method for dynamic cleaning and salt deposition resisting in closed cycle mode |
| CN205423348U (en) * | 2016-02-25 | 2016-08-03 | 上海高田制泵有限公司 | Chemical industry crystallization centrifugal pump |
| CN206903880U (en) * | 2017-05-18 | 2018-01-19 | 沈阳潜水泵业有限公司 | High concentration brine immersible pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110259692A (en) * | 2019-06-26 | 2019-09-20 | 内蒙古五湖泵业有限公司 | A kind of Submersible pump |
| WO2022110141A1 (en) * | 2020-11-30 | 2022-06-02 | 镇江福泰克流体技术有限公司 | Upright brine transfer pump having high lift |
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Application publication date: 20170929 |