CN105697418A - High-pressure-resistant circulating pump for reverse osmosis - Google Patents
High-pressure-resistant circulating pump for reverse osmosis Download PDFInfo
- Publication number
- CN105697418A CN105697418A CN201610049573.2A CN201610049573A CN105697418A CN 105697418 A CN105697418 A CN 105697418A CN 201610049573 A CN201610049573 A CN 201610049573A CN 105697418 A CN105697418 A CN 105697418A
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- CN
- China
- Prior art keywords
- pressure
- pump
- bearing shell
- reverse osmosis
- pump housing
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- 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.)
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Classifications
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- 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
- 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
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 high-pressure-resistant circulating pump for reverse osmosis. The high-pressure-resistant circulating pump for reverse osmosis comprises a base and a circulation pump installed on the base. The circulation pump comprises a pump body and a motor for driving an impeller in the pump body to rotate. The high-pressure-resistant circulating pump for reverse osmosis further comprises a pressure-bearing shell. An accommodating cavity for accommodating the pump body is arranged in the pressure-bearing shell. The pump body is arranged in the accommodating cavity. The pressure-bearing shell is provided with a fluid inlet and a fluid outlet. The fluid outlet is connected with the outlet end of the pump body in a sealing mode. A pump shaft of the pump body penetrates out of the other side face of the pressure-bearing shell and then is connected with the motor through a coupling. According to the high-pressure-resistant circulating pump for reverse osmosis, the pressure-bearing shell is installed outside the pump body of the common circulation pump; the pressure-bearing shell can bear high pressure in a reverse osmosis system and guarantee that the pump body can work in a low pressure difference environment, and therefore users only need to select a common pump body design, and cost is greatly reduced; and the pressure-bearing shell can bear the high pressure in the system, installation is simple, the positions of the inlet and the outlet can be arranged freely, and the practical value is high.
Description
Technical field
The present invention relates to circulating pump, be specifically related to a kind of high pressure resistant circulating pump of reverse osmosis。
Background technology
In DTRO (disc tube reverse osmosis (dt-ro)) application, generally include desalinization, percolate filters, zero-emission or other field, it is necessary to circulating pump provides enough slipstream to reduce concentration polarization and the accumulation of minimizing pollutant。Owing to this circulating pump needs to be operated under the pressure of high-pressure pump, still there is no the pressure that circulating pump can withstand up to 10 MPas or higher in the porch of pump at present。In order to solve high voltage bearing problem, designer has to adopt plunger displacement pump to realize the circulation of current, but plunger displacement pump flow is smaller, outlet pressure is big, inlet pressure cannot be born big, and the cost of plunger displacement pump is very high, make a lot of enterprise or manufacturer is unable bears。
Therefore, presently, there are common circulating pump and be not applied for the problem that high pressure DTRO field causes the application of high pressure DTRO to be extremely restricted。
Summary of the invention
The technical problem to be solved is high pressure resistant can not to cause that high pressure DTRO applies the problem being restricted at the pump housing of the existing circulating pump in reverse osmosis applications field。
In order to solve above-mentioned technical problem, the technical solution adopted in the present invention is to provide a kind of high pressure resistant circulating pump of reverse osmosis, including base and be arranged on the circulating pump on described base, described circulating pump includes the pump housing and for driving the motor of wheel rotation in the described pump housing, also include pressure-bearing shell, the inside of described pressure-bearing shell is provided with the accommodation chamber holding the described pump housing, the described pump housing is built in described accommodation intracavity, described pressure-bearing shell is provided with fluid intake and fluid issuing, the port of export of described housing outlets and the described pump housing is tightly connected, the pump shaft of the described pump housing is connected with described motor by shaft coupling after passing the another side of described pressure-bearing shell。
In such scheme, the one side of described pressure-bearing shell is outwardly is provided with the first entrance connecting tube, and described housing inlet port is arranged on the free end of described first entrance connecting tube, and the outside of described fluid intake is provided with the first flange assembly。
In such scheme, described pressure-bearing shell be provided inwardly with the first outlet connecting pipe, the second outlet connecting pipe being outwards communicated with, the port of export of described first outlet connecting pipe and the described pump housing is tightly connected, described fluid issuing is arranged on the free end of described second outlet connecting pipe, and the outside of described fluid issuing is provided with the second flange assembly。
In such scheme, being provided with sealing ring between pump shaft and the chamber wall of described pressure-bearing shell of the described pump housing, described sealing ring is fixed in sealing coil。
In such scheme, the outside of described sealing coil is provided with bearing bracket stand, is provided with bearing in described bearing bracket stand, and described output shaft is through described bearing, and the outside of described bearing bracket stand is provided with dismountable bearing cap。
In such scheme, the described pump housing adopts centrifugal pump, and the upper end of the described pump housing is provided with the described port of export, and the outside of described pump body is provided with entrance point。
In such scheme, it is connected with described base through screws removable seal bottom described pressure-bearing shell。
In such scheme, the operating pressure at described fluid intake place is 9～11 MPas, and the operating pressure of described fluid outlet is 9.5～12 MPas, and the pressure differential that the described pump housing within described pressure-bearing shell bears is 0.5～1 MPa。
In such scheme, the described pump housing adopts dual phase steel material, and described pressure-bearing shell adopts stainless steel or carbon steel material。
The present invention, be equivalent to be provided with outside the pump housing of common circulating pump pressure-bearing shell with resist under reverse osmosis environment high pressure without adopting very thick centrifugal pump cavity, only need to select common pump body design, greatly reduce cost, also a kind of effective solution is provided for the application of the DTRO of following higher pressure, design is simple, and practical value is high。
Accompanying drawing explanation
Fig. 1 is the sectional view of the present invention；
Fig. 2 is the connection diagram of output shaft and pressure-bearing shell junction in the present invention。
Detailed description of the invention
Below in conjunction with Figure of description, the present invention is described in detail。
As shown in Figure 1, the invention provides a kind of high pressure resistant circulating pump of reverse osmosis, including base 40, circulating pump on the base 40 it is installed, circulating pump includes the pump housing 20 and motor 30, middle pump body 20 of the present invention generally adopts centrifugal pump, the upper end of the pump housing 20 is provided with the port of export 21, entrance point 22 it is provided with outside one end of the pump housing 20, it is provided with impeller in the pump housing 20, pump shaft 23 is stretched out outside the other end of the pump housing 20, being connected with motor 30 by shaft coupling 31, motor 30 provides power for the pump housing 20, drives the wheel rotation in the pump housing 20。
Present invention additionally comprises pressure-bearing shell 10, the inside of pressure-bearing shell 10 is provided with the accommodation chamber holding the pump housing 20, the pump housing 20 is built in accommodation intracavity, it is connected by screw removable seal with base 40 bottom pressure-bearing shell 10, therefore hold intracavity and form an airtight space, the pump housing 20 is in the space that this is airtight, and the pressure born also is the pressure of this accommodation intracavity。Middle pump body 20 of the present invention adopts dual phase steel material, and pressure-bearing shell 10 can adopt stainless steel or carbon steel material, can effectively reduce use cost under the premise meeting demand。
Pressure-bearing shell 10 is provided with fluid intake 12 and fluid issuing 15, and the port of export 21 of fluid issuing 15 and the pump housing 20 is tightly connected, and the pump shaft 23 of the pump housing 20 is connected with motor 30 by shaft coupling 31 after passing the another side of pressure-bearing shell 10。
Preferably, the one side of pressure-bearing shell 10 is outwardly is provided with the first entrance connecting tube 11, fluid intake 12 is arranged on the free end of the first entrance connecting tube 11, the outside of fluid intake 12 is provided with the first flange assembly 121, first entrance connecting tube 11 the installation facilitating the first flange assembly 121 is set, be also convenient for pressure-bearing shell 10 and be connected installation with other equipment。
The upper surface of pressure-bearing shell 10 is provided inwardly with the first outlet connecting pipe 14, the second outlet connecting pipe 13 being outwards communicated with, first outlet connecting pipe 14 is connected by thread seal with the port of export 21 of the pump housing 20, the setting of the first outlet connecting pipe 14 facilitates the installation and removal between pressure-bearing shell 10 and the pump housing 20, fluid issuing 15 is arranged on the free end of the second outlet connecting pipe 13, and the outside of fluid issuing 15 is provided with the second flange assembly 151。Second outlet connecting pipe 13 the installation facilitating the second flange assembly 151 is set, be also convenient for pressure-bearing shell 10 and be connected installation with other equipment。In the present invention, fluid intake 12 and fluid issuing 15 can be alternatively provided at different positions flexibly according to needing of arranging of system, and the system that greatly facilitates is installed。
In conjunction with Fig. 1 and Fig. 2, in order to prevent pressure leakage, between pump shaft 23 and the chamber wall of pressure-bearing shell 10 of the pump housing 20, it is provided with sealing ring 161, sealing ring 161 is fixed in sealing coil 162, preferred sealing ring 161 adopts quality of rubber materials, good sealing effect, seals coil 162 and covers sealing ring 161。The outside sealing coil 162 is provided with bearing bracket stand 164, is provided with bearing 163 in bearing bracket stand 164, and pump shaft 23 is through bearing 163, and the outside of bearing bracket stand 164 is provided with dismountable bearing cap 165。Bearing bracket stand 164 and bearing cap 165 provide the space sealed can to bearing 163, it is prevented that pollute or corrosion, improve its service life。
The operating pressure at fluid intake 12 place of the present invention is 9～11 MPas, suitable with reverse osmosis concentrated water pressure, the operating pressure at fluid issuing 15 place is 9.5～12 MPas, can be enough adapt to high pressure under disc tube reverse osmosis (dt-ro) applied environment, the pump housing 20 is built in pressure-bearing shell 10, owing to arrival end 22 and fluid intake 12 are joined directly together, therefore the pressure born is 9～11 MPas, the port of export 21 is connected with fluid issuing 15, the pressure born is 9.5～12 MPas, therefore the pressure differential that the pump housing 20 bears is 0.5～1 MPa, the lift provided is about 50～100 meters, the common pump housing 20 all can bear this pressure differential, therefore specific high pressure resistant circulating pump need not be selected, it is greatly saved cost。
The present invention, outside the pump housing of common circulating pump, pressure-bearing shell is installed, filter or in the application process of other disc tube reverse osmosis (dt-ro)s at desalinization, percolate, pressure-bearing shell can undertake the high pressure under working environment, it is ensured that the pump housing can work under low voltage difference environment, therefore only need to select the common pump housing, circulating pump need not be done high voltage bearing independent improvement, greatly reducing cost, install simple, practical value is high。
The present invention is not limited to above-mentioned preferred forms, and anyone should learn the structure change made under the enlightenment of the present invention, and every have same or like technical scheme with the present invention, each falls within protection scope of the present invention。
Claims (9)
1. the high pressure resistant circulating pump of reverse osmosis, including base and be arranged on the circulating pump on described base, described circulating pump includes the pump housing and for driving the motor of wheel rotation in the described pump housing, it is characterized in that, also include pressure-bearing shell, the inside of described pressure-bearing shell is provided with the accommodation chamber holding the described pump housing, the described pump housing is built in described accommodation intracavity, described pressure-bearing shell is provided with fluid intake and fluid issuing, the port of export of described fluid issuing and the described pump housing is tightly connected, the pump shaft of the described pump housing is connected with described motor by shaft coupling after passing the another side of described pressure-bearing shell。
2. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterized in that, the one side of described pressure-bearing shell is outwardly is provided with the first entrance connecting tube, described fluid intake is arranged on the free end of described first entrance connecting tube, and the outside of described fluid intake is provided with the first flange assembly。
3. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterized in that, the upper surface of described pressure-bearing shell is provided inwardly with the first outlet connecting pipe, the second outlet connecting pipe being outwards communicated with, the port of export of described first outlet connecting pipe and the described pump housing is tightly connected, described fluid issuing is arranged on the free end of described second outlet connecting pipe, and the outside of described fluid issuing is provided with the second flange assembly。
4. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterised in that being provided with sealing ring between pump shaft and the chamber wall of described pressure-bearing shell of the described pump housing, described sealing ring is fixed in sealing coil。
5. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 4, it is characterized in that, the outside of described sealing coil is provided with bearing bracket stand, is provided with bearing in described bearing bracket stand, described pump shaft is through described bearing, and the outside of described bearing bracket stand is provided with dismountable bearing cap。
6. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterised in that the described pump housing adopts centrifugal pump, and the upper end of the described pump housing is provided with the described port of export, and the outside of described pump body is provided with entrance point。
7. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterised in that the bottom of described pressure-bearing shell is connected with described base through screws removable seal。
8. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterized in that, the operating pressure at described fluid intake place is 9～11 MPas, the operating pressure of described fluid outlet is 9.5～12 MPas, and the pressure differential that the described pump housing within described pressure-bearing shell bears is 0.5～1 MPa。
9. a kind of high pressure resistant circulating pump of reverse osmosis as claimed in claim 1, it is characterised in that the described pump housing adopts dual phase steel material, and described pressure-bearing shell adopts stainless steel or carbon steel material。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049573.2A CN105697418A (en) | 2016-01-25 | 2016-01-25 | High-pressure-resistant circulating pump for reverse osmosis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610049573.2A CN105697418A (en) | 2016-01-25 | 2016-01-25 | High-pressure-resistant circulating pump for reverse osmosis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105697418A true CN105697418A (en) | 2016-06-22 |
Family
ID=56229388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610049573.2A Pending CN105697418A (en) | 2016-01-25 | 2016-01-25 | High-pressure-resistant circulating pump for reverse osmosis |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105697418A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930978A (en) * | 2017-03-13 | 2017-07-07 | 江苏永泵业科技集团有限公司 | A kind of high temperature high voltage resistant barrel insertpump |
| CN108443165A (en) * | 2018-05-10 | 2018-08-24 | 约翰斯顿流体科技（无锡）有限公司 | A kind of horizontal normal temperature type double suction corrosion-resistant stainless steel centrifugal pump |
| CN108591065A (en) * | 2018-05-10 | 2018-09-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of dual horizontal shell centrifugal pump |
| CN111118525A (en) * | 2020-02-16 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
| CN112555127A (en) * | 2020-12-06 | 2021-03-26 | 深圳太科飞天科技有限公司 | High-pressure-resistant large-flow small-sized gas booster pump |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US4277223A (en) * | 1979-11-29 | 1981-07-07 | Guy F. Atkinson Company | Case construction for multi-stage pump |
| US4433947A (en) * | 1981-05-07 | 1984-02-28 | Klein, Schanzlin & Becker Aktiengesellschaft | Slurry feed pump for coal liquefaction reactors |
| US4518311A (en) * | 1979-10-03 | 1985-05-21 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump |
| CN202273868U (en) * | 2011-09-02 | 2012-06-13 | 南方泵业股份有限公司 | Efficient high-bearing horizontal multi-stage centrifugal pump |
| CN204164049U (en) * | 2014-10-16 | 2015-02-18 | 大连深蓝泵业有限公司 | Novel vertical barrel bag pump |
| CN104533802A (en) * | 2014-12-19 | 2015-04-22 | 浙江金凯德农机设备有限公司 | Small seawater desalination pump device |
| CN205349862U (en) * | 2016-01-25 | 2016-06-29 | 崔华 | Reverse osmosis uses high pressure resistant circulating pump |
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2016
- 2016-01-25 CN CN201610049573.2A patent/CN105697418A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4518311A (en) * | 1979-10-03 | 1985-05-21 | Klein, Schanzlin & Becker Aktiengesellschaft | Centrifugal pump |
| US4277223A (en) * | 1979-11-29 | 1981-07-07 | Guy F. Atkinson Company | Case construction for multi-stage pump |
| US4433947A (en) * | 1981-05-07 | 1984-02-28 | Klein, Schanzlin & Becker Aktiengesellschaft | Slurry feed pump for coal liquefaction reactors |
| CN202273868U (en) * | 2011-09-02 | 2012-06-13 | 南方泵业股份有限公司 | Efficient high-bearing horizontal multi-stage centrifugal pump |
| CN204164049U (en) * | 2014-10-16 | 2015-02-18 | 大连深蓝泵业有限公司 | Novel vertical barrel bag pump |
| CN104533802A (en) * | 2014-12-19 | 2015-04-22 | 浙江金凯德农机设备有限公司 | Small seawater desalination pump device |
| CN205349862U (en) * | 2016-01-25 | 2016-06-29 | 崔华 | Reverse osmosis uses high pressure resistant circulating pump |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106930978A (en) * | 2017-03-13 | 2017-07-07 | 江苏永泵业科技集团有限公司 | A kind of high temperature high voltage resistant barrel insertpump |
| CN108443165A (en) * | 2018-05-10 | 2018-08-24 | 约翰斯顿流体科技（无锡）有限公司 | A kind of horizontal normal temperature type double suction corrosion-resistant stainless steel centrifugal pump |
| CN108591065A (en) * | 2018-05-10 | 2018-09-28 | 约翰斯顿流体科技（无锡）有限公司 | A kind of dual horizontal shell centrifugal pump |
| CN111118525A (en) * | 2020-02-16 | 2020-05-08 | 中科院大连化学物理研究所张家港产业技术研究院有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
| CN111118525B (en) * | 2020-02-16 | 2023-08-15 | 扬州乐道能源科技有限公司 | Electrolytic tank suitable for pressurizing circulating pump shell and working method thereof |
| CN112555127A (en) * | 2020-12-06 | 2021-03-26 | 深圳太科飞天科技有限公司 | High-pressure-resistant large-flow small-sized gas booster pump |
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Application publication date: 20160622 |