CN209278142U - Diving high-efficiency double suction pump - Google Patents
Diving high-efficiency double suction pump Download PDFInfo
- Publication number
- CN209278142U CN209278142U CN201822229870.2U CN201822229870U CN209278142U CN 209278142 U CN209278142 U CN 209278142U CN 201822229870 U CN201822229870 U CN 201822229870U CN 209278142 U CN209278142 U CN 209278142U
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- CN
- China
- Prior art keywords
- pump
- submersible motor
- pump housing
- impeller
- mechanical seal
- 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.)
- Expired - Fee Related
Links
- 230000009189 diving Effects 0.000 title claims abstract description 25
- 238000007789 sealing Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 28
- 238000005086 pumping Methods 0.000 claims abstract description 3
- 230000001681 protective effect Effects 0.000 claims description 15
- 239000004519 grease Substances 0.000 claims description 11
- 238000012423 maintenance Methods 0.000 abstract description 8
- 238000005299 abrasion Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000000930 thermomechanical effect Effects 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000010841 municipal wastewater Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of diving high-efficiency double suction pump, including submersible motor component and pump assembly, submersible motor component includes submersible motor, connection frame and mechanical seal, pump assembly include the pump housing being connect with connection frame, the pump cover being installed on the pump housing and in the pump housing and be installed in submersible motor axis lower part impeller, wherein, the balance runner suction chamber with side water sucking mouth and the pumping chamber with side water outlet are provided in the pump housing, which is configured to symmetrically entering impeller after it from the medium of side water sucking mouth.In the utility model, pumped medium symmetrically enters impeller after balance runner suction chamber, improves flow condition, efficiency is further promoted；Impeller and lower sealing ring etc. are installed from pump housing lower part, and submersible motor can not be dismantled with the pump housing when maintenance, greatly reduce maintenance load；Two-shipper seals form, keeps unit more safe and reliable.
Description
Technical field:
The utility model relates to pump technical field more particularly to a kind of diving high-efficiency double suction pumps of diving under water.
Background technique:
All occasions for using immersible pump, mostly single-stage, list such as municipal wastewater processing at present, water conservancy irrigation and drainage, diversion works
It inhales immersible pump and submersible axial flow pump or submersible mixed-flow pumps, and diving double entry pump in the market, such as the patent No. of the pool Li Jin invention
For a kind of double-suction submersible electric pump of CN200920078316, because being not provided with suction chamber, the direct open type of impeller is sucked,
It has a certain impact to the efficiency of pump, is especially affected to the cavitation performance of pump in this way.Especially for low-lift pump, waterpower damage
Although the absolute value of mistake is less, lift large percentage is accounted for, thus the influence to efficiency is relatively more much greater than high lift pump.
Conventional middle open type double entry pump, although being equipped with suction chamber 100, and cavitation performance, its suction chamber is by water
The limitation of opening structure can only be made into half-spiral in flat, and such flow condition cannot reach optimum state, as shown in Figure 1,
Conventional levels middle open type double entry pump sees have half flow in 0 °~180 ° ranges in the direction of the clock due to being influenced by structure
It is inside to rotate into impeller 200, and the other half flow is within the scope of 180 °~360 °, is straight due to the blocking by cut water 300
It taps into impeller 200, thus there are two plumes to move asymmetric liquid stream (shown in arrow A) into impeller 200.
Utility model content:
In order to overcome the problems referred above, the utility model provides one kind and can improve submersible pump efficiency but also retain in routine
The diving high-efficiency double suction pump of the good feature of open type double entry pump cavitation performance will be advantageous.
For this purpose, the utility model provides a kind of diving high-efficiency double suction pump comprising submersible motor component and be located at diving electricity
Pump assembly below thermomechanical components, submersible motor component include submersible motor, the connection frame for being installed in submersible motor bottom, Yi Ji
The mechanical seal being installed on submersible motor axis below connection frame, pump assembly include the pump housing connecting with connection frame, are installed in pump
Pump cover on body and in the pump housing and be installed in submersible motor axis lower part impeller, wherein tool is provided in the pump housing
There are the balance runner suction chamber of side water sucking mouth and the pumping chamber with side water outlet, which is configured to from side
The medium of water sucking mouth is symmetrically entering impeller after it.
In the present invention, double entry pump efficiency itself is just higher than single-stage, single suction pump, in addition its suction chamber is designed as pair again
Claim runner suction chamber, and be configured to symmetrically entering impeller after it from the medium of its side water sucking mouth, so that water inlet
Condition is effectively improved, and efficiency is further promoted.
Further, above-mentioned balance runner suction chamber is divided into two half-spirals by cut water and divides suction chamber, two semi-spirals
Shape divides suction chamber to be arranged symmetrically with respect to plane where cut water.
Further, above-mentioned pump cover includes upper pump cover and lower pump cover, and upper pump cover is installed on the pump housing above the pump housing, under
Pump cover is installed on the pump housing below the pump housing.
Also further, above-mentioned diving high-efficiency double suction pump further includes protective shaft sleeve, which is installed on submersible motor axis simultaneously
Between mechanical seal and impeller.
The setting of upper pump cover and protective shaft sleeve so that protect submersible motor axis and the pump housing to exempt from well in pump operation process
It is damaged, static pieces have abrasion only to need replacing lesser part, i.e., the upper pump cover and protective shaft sleeve after only needing replacing abrasion are i.e.
It can.
Further, above-mentioned diving high-efficiency double suction pump further includes upper sealing ring and lower sealing ring, under the upper sealing ring and this
Sealing ring is all tightly installed on the pump housing, and the impeller is pressed from the lower section of the pump housing in institute by impeller pressing plate
On the lower part for stating submersible motor axis, wherein the upper inner of the impeller is abutted with the protective shaft sleeve, upper outside with it is close on this
Seal ring abuts, and lower outside is abutted with the lower sealing ring.
It is arranged by above structure, impeller and lower sealing ring is installed from the lower section of the pump housing, when maintenance dives under water
Motor can not be dismantled with the pump housing, and which reduces maintenance loads.
It again further, further include connecting plate, the connecting plate is between the connection frame and the pump housing to even
Grease chamber is formed between fishplate bar and connection frame, the mechanical seal includes upper mechanical seal and lower mechanical seal, upper mechanical seal position
In the grease chamber above the connecting plate, lower mechanical seal be located at below the connecting plate to by the relatively described pump assembly of grease chamber every
It leaves.
It is arranged by above structure, so that the utility model is two-shipper sealing mechanism form, unit can be more safe and reliable
Operation.
By reference to the embodiments described below, the above-mentioned these and other aspects of the utility model will be obtained
More clearly illustrate.
Detailed description of the invention:
The structure of the utility model and further objects and advantages will be obtained more by description with reference to the accompanying drawing
Understand well, wherein identical reference marker identifies identical element:
Fig. 1 is the interior media flow schematic diagram of existing middle open type double entry pump；
Fig. 2 is the internal structure cross-sectional view according to the diving high-efficiency double suction pump of one specific embodiment of the utility model；
Fig. 3 is the interior media flow schematic diagram of diving high-efficiency double suction pump shown in Fig. 2.
Specific embodiment:
Specific embodiment of the present utility model is described below in conjunction with attached drawing.It is to be understood, however, that being draped over one's shoulders here
The embodiment of dew is only the typical example of the utility model, can be presented as various forms.Therefore, it discloses here
Detail is not to be considered as limiting, and is merely possible to the basis of claim and as instructing this field skill
Art personnel differently apply the representative basis of the utility model in any appropriate mode in practice, including using institute here
The feature that the various features and combination disclosed may not disclosed clearly here.
It should be noted that herein, for explaining the structure and/or movement of the various pieces of disclosed embodiment
Direction indicates that such as "upper", "lower", "front", "rear" etc. are not absolute, but opposite.When disclosed embodiment
Various pieces when being located at position as shown in the figure, these expressions are suitable.If position or the reference of disclosed embodiment
System changes, these expressions will also change according to the position of disclosed embodiment or the change of reference system.
As shown in Figures 2 and 3, the diving high-efficiency double suction pump of a specific embodiment according to the present utility model is by impeller
1, the pump housing 2, upper pump cover 3, connection frame 4, mechanical seal, submersible motor 6, connecting plate 7, protective shaft sleeve 8, upper sealing ring 9, impeller pressing plate
10, lower sealing ring 11 and lower pump cover 12 composition.Wherein, connection frame 4, mechanical seal, submersible motor 6, connecting plate 7 constitute diving electricity
Thermomechanical components；Impeller 1, the pump housing 2, upper pump cover 3, protective shaft sleeve 8, upper sealing ring 9, impeller pressing plate 10, lower sealing ring 11 and lower pump cover 12
Constitute pump assembly.The balance runner suction chamber 21 with side water sucking mouth 20 and the pressure with side water outlet 22 are provided in the pump housing 2
Water chamber 23, the balance runner suction chamber 21 are configured to symmetrically enter from the medium such as water of its side water sucking mouth 20 after it
Impeller 1.Specifically, as shown in figure 3, in the present embodiment, which is divided to by cut water 25 for two and half spiral shells
Rotation shape divides suction chamber, which divides suction chamber to be arranged symmetrically with respect to 25 place plane of cut water.In this way, two bursts of liquid streams pair
Claim to flow into impeller 1, flow condition is improved, and efficiency can be promoted, wherein liquid stream is indicated in figure 2 and figure 3 with arrow B.
As shown in Fig. 2, upper pump cover 3 and lower pump cover 12 constitute pump cover, and upper pump cover 3 is pacified in the top of the pump housing 2 in pump assembly
Loaded on the pump housing 2, lower pump cover 12 is installed on the pump housing 2 in the lower section of the pump housing 2；Protective shaft sleeve 8 is installed in the diving electricity of submersible motor 6
On arbor 60 and between mechanical seal and impeller 1；Upper sealing ring 9 and lower sealing ring 11 are all tightly installed in the pump housing 2
On, impeller 1 by impeller pressing plate 10 from the lower section of the pump housing 2 be pressed on the lower part of submersible motor axis 60, wherein impeller 1 it is upper
It is abutted on the inside of portion with protective shaft sleeve 8, the upper outside of impeller 1 is abutted with upper sealing ring 9, the lower outside and lower sealing ring of impeller 1
11 abut；Connecting plate 7 is between connection frame 4 and the pump housing 2, to form grease chamber 45 between connecting plate 7 and connection frame 4；Machine
Tool sealing includes upper mechanical seal 51 and lower mechanical seal 53, and upper mechanical seal 51 is located at the grease chamber 45 of 7 top of connecting plate
Interior, lower mechanical seal 53 is located at 7 lower section of connecting plate to keep apart grease chamber 45 with respect to pump assembly.
When assembly, as shown in Fig. 2, first upper pump cover 3, upper sealing ring 9 are installed on the pump housing 2, connection frame 4 is fixed to latent
It the bottom of hydroelectric machine 6 then, then will diving by the corresponding position of connecting plate 7 and mechanical seal on submersible motor axis 60
Motor 6 enters the pump housing 2 together with connection frame 4, connecting plate 7 and mechanical seal integral hoisting, subsequently, by protective shaft sleeve 8, impeller 1, leaf
It takes turns pressing plate 10 and lower sealing ring 11 to be packed into from the bottom of the pump housing 2, finally loads onto lower pump cover 12.It should be noted that connection
The effect of frame 4 is formed a connecting link, and connects submersible motor 6 above, connects the pump housing 2 below, and be used as the grease chamber 45 of upper mechanical seal 51；
The effect of connecting plate 7 and lower mechanical seal 53 is to keep apart grease chamber 45 with pumped medium, is protected well to submersible motor 6
Shield.The effect of protective shaft sleeve 8 and upper pump cover 3 be protected well in pump operation process submersible motor axis 60 and the pump housing 2 from
Damage, static pieces have abrasion only to need replacing lesser part, because upper pump cover 3 is seperated, and upper pump cover with the pump housing 2
There is abrasion between 3 and dynamic submersible motor axis 60 and protective shaft sleeve 8, but can individually change pump cover 3 and protective shaft sleeve 8 after grinding away, without
With the entire pump housing 2 is changed, maintenance cost can be substantially reduced.
The design feature of present embodiment is:
1) for the efficiency of double entry pump itself than single-stage, single suction pump with regard to high, it is symmetrical from two sides that pump housing water suction cell structure is changed to medium
Into impeller, flow condition improves, and efficiency is further promoted；
2) part replacement is mostly impeller and sealing ring when general immersible pump maintenance, this structure is designed as impeller and lower sealing
Ring is installed from pump housing lower part, and submersible motor can not be dismantled with the pump housing when maintenance, and which reduces maintenance loads；
3) existing diving double entry pump only has one of mechanical seal mostly in the market, inadequate to submersible motor protection, safety
Property it is not high, this structure using single-stage, single suction immersible pump and diving axis it is (mixed) stream pump two-shipper sealing mechanism form, unit can be more
Safe and reliable operation.
The technology contents and technical characterstic of the utility model have revealed that as above, it being understood, however, that in the utility model
Under creative ideas, those skilled in the art can make various changes and improve to above structure, including what is individually disclosed here
Or the combination of claimed technical characteristic, and significantly include other combinations of these features.These deformations and/or combination
It each falls in technical field involved in the utility model, and falls into the protection scope of the utility model claims.
Claims (6)
1. a kind of diving high-efficiency double suction pump, it is characterised in that the pump including submersible motor component and below submersible motor component
Component, submersible motor component include submersible motor, the connection frame for being installed in submersible motor bottom and install below connection frame
Mechanical seal on submersible motor axis, pump assembly include the pump housing being connect with connection frame, the pump cover being installed on the pump housing and
In the pump housing and be installed in submersible motor axis lower part impeller, wherein pair with side water sucking mouth is provided in the pump housing
Runner suction chamber and the pumping chamber with side water outlet, the balance runner suction chamber is claimed to be configured to exist from the medium of side water sucking mouth
Symmetrically enter impeller after it.
2. diving high-efficiency double suction pump according to claim 1, which is characterized in that the balance runner suction chamber is by cut water point
Divide suction chamber for two half-spirals, which divides suction chamber to be arranged symmetrically with respect to plane where cut water.
3. diving high-efficiency double suction pump according to claim 2, which is characterized in that the pump cover includes upper pump cover and lower pump
Lid, upper pump cover are installed on the pump housing above the pump housing, and lower pump cover is installed on the pump below the pump housing
On body.
4. diving high-efficiency double suction pump according to claim 3, which is characterized in that it further include protective shaft sleeve, protective shaft sleeve installing
In on the submersible motor axis and between the mechanical seal and the impeller.
5. diving high-efficiency double suction pump according to claim 4, which is characterized in that it further include upper sealing ring and lower sealing ring,
The upper sealing ring and the lower sealing ring are all tightly installed on the pump housing, and the impeller passes through impeller pressing plate from the pump
The lower section of body is pressed on the lower part of the submersible motor axis, wherein and the upper inner of the impeller is abutted with the protective shaft sleeve,
Upper outside is abutted with the upper sealing ring, and lower outside is abutted with the lower sealing ring.
6. diving high-efficiency double suction pump according to any one of claims 1 to 5, which is characterized in that it further include connecting plate, the company
Fishplate bar forms grease chamber, the mechanical seal between the connection frame and the pump housing thus between connecting plate and connection frame
Including upper mechanical seal and lower mechanical seal, upper mechanical seal is located in the grease chamber above the connecting plate, lower mechanical seal position
To keep apart the relatively described pump assembly of grease chamber below the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822229870.2U CN209278142U (en) | 2018-12-28 | 2018-12-28 | Diving high-efficiency double suction pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822229870.2U CN209278142U (en) | 2018-12-28 | 2018-12-28 | Diving high-efficiency double suction pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209278142U true CN209278142U (en) | 2019-08-20 |
Family
ID=67607803
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822229870.2U Expired - Fee Related CN209278142U (en) | 2018-12-28 | 2018-12-28 | Diving high-efficiency double suction pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209278142U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594454A (en) * | 2020-05-21 | 2020-08-28 | 上海凯泉泵业（集团）有限公司 | Vertical double entry pump of direct-connected type |
| CN114837953A (en) * | 2022-04-13 | 2022-08-02 | 西华大学 | Non-axial water inlet axial flow pump |
-
2018
- 2018-12-28 CN CN201822229870.2U patent/CN209278142U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111594454A (en) * | 2020-05-21 | 2020-08-28 | 上海凯泉泵业（集团）有限公司 | Vertical double entry pump of direct-connected type |
| CN111594454B (en) * | 2020-05-21 | 2024-05-17 | 上海凯泉泵业（集团）有限公司 | Direct-connection vertical double-suction pump |
| CN114837953A (en) * | 2022-04-13 | 2022-08-02 | 西华大学 | Non-axial water inlet axial flow pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190820 |