CN204628002U - A kind of double suction Pulp pump - Google Patents
A kind of double suction Pulp pump Download PDFInfo
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- CN204628002U CN204628002U CN201420359684.XU CN201420359684U CN204628002U CN 204628002 U CN204628002 U CN 204628002U CN 201420359684 U CN201420359684 U CN 201420359684U CN 204628002 U CN204628002 U CN 204628002U
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- impeller
- pump
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- suction chamber
- pump housing
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Abstract
A kind of double suction Pulp pump, is made up of bearing portion assembly, main shaft, pump cover, the pump housing, impeller, it is characterized in that: impeller is combined by composite abrasion resistance material parts and metallic material parts; Impeller is enclosed double-entry impeller, the side of an one suction port is provided with bearing part group, the side of its another suction port is provided with supply pipe; Suction chamber before being provided with between impeller and supply pipe, suction chamber after being provided with between impeller and bearing portion assembly; The pump housing is multi-layer structure, and its outer installment has outer metal layer, and inside is provided with liner composite abrasion resistance material layer, is provided with intermediate metal layer outside between metal layer and liner composite wear-resistant layer; The runner of suction chamber after leading to from supply pipe is provided with between the outer metal layer and intermediate metal layer of the pump housing.
Description
Art
The utility model relates to a kind of centrifugal pump, has the centrifugal pump of abrasive media in particular for conveying.
Background technique
When conveying has the medium of abrasion, often adopt Pulp pump.But there is following defect in the Pulp pump of prior art manufacture:
The flow passage part life-span is shorter: the flow passage part of existing Pulp pump generally adopts antifriction metal (AFM) or abrasive rubber manufacture, and wear resistance Chang Buneng meets the demands.
Lift raising is restricted: due to technological reason, Pulp pump generally adopts single suction impeller; Single suction impeller can be subject to the axial force pointing to suction port when running, its size and lift are directly proportional.Clean waterpump is standing puts equalizing orifice and seal ring to balance this axial force.But Pulp pump considers wear problem, can only by arranging thrust-bearing to bear axial force.Along with increasing of Pulp pump lift, the rotating speed of pump also needs corresponding raising, and axial force increases in proportion, must adopt the thrust-bearing of more large gauge; But the bearing capacity of thrust-bearing and limit speed are contradiction, and bearing capacity is larger, limit speed is lower.For solving this contradiction, a lot of high-lift Pulp pump is had to by adopting large diameter impeller, and the rotating speed reducing main shaft improves the reliability of thrust-bearing.This not only causes manufacture cost significantly to rise, and also makes the specific speed of pump significantly decline, and the efficiency of pump is obviously declined.Adopt double-entry impeller can solve the excessive problem of axial force, but due to double-entry impeller complex structure, and need complicated suction chamber structure, if adopt conventional antifriction metal (AFM) or abrasive rubber manufacture, not only technique has very large difficulty, manufacture cost is also difficult to control.Therefore, only have the simple slag slurry pump under liquid of structure to adopt open type double-entry impeller or semi-open type double-entry impeller in the market, not yet occur the Pulp pump adopting enclosed double-entry impeller.But adopt the shortcoming of the Pulp pump of unshrouded impeller or half-opened impeller apparent, namely not only the efficiency of pump is low, and damage in impeller is serious, can not realize high-lift.
In sum, due to Structure and energy, lack one in the market and can realize long lifetime, high-lift and high efficiency Pulp pump.
Summary of the invention
For solving the deficiencies in the prior art, the utility model provides a kind of Pulp pump, is conducive to realizing the long lifetime of Pulp pump, high-lift and high efficiency from the aspect such as material, Structure and energy.
The utility model solves the technological scheme that its technical problem adopts: Pulp pump is made up of bearing portion assembly, main shaft, impeller, the pump housing, pump cover etc.; Impeller is combined by composite abrasion resistance material parts and metallic material parts; Impeller is enclosed double-entry impeller, the side of an one suction port is provided with bearing part group, the side of its another suction port is provided with material feeding mouth; Suction chamber before being provided with between impeller and material feeding mouth, suction chamber after being provided with between impeller and bearing portion assembly; The pump housing is multi-layer structure, and its outer installment has outer metal layer, and inside is provided with liner composite abrasion resistance material layer, is provided with intermediate metal layer outside between metal layer and liner composite wear-resistant layer; The runner of suction chamber after leading to from material feeding mouth is provided with between the outer metal layer and intermediate metal layer of the pump housing; Pump cover is combined by composite abrasion resistance material parts and metallic material parts.
The Main Ingredients and Appearance of above-mentioned composite abrasion resistance material is the abrasive grain of 40% ~ 95% weight and the resinoid bond of 5% ~ 60% weight, abrasive material is lower and the wear resistance artificial or natural abrasive preferably of cost, as silicon nitride, silicon carbide, corundum, garnet, emery, zirconium oxide etc.A kind of abrasive material wherein can be adopted, several abrasive composites also can be adopted simultaneously to strengthen the wear resistance of composite abrasion resistance material.
For the high-lift Pulp pump of large discharge, when pump off-design operating mode is run, adopt double-entry impeller can produce very large radial force, easily cause main shaft and the bearing damage of cantilever, at this moment the discharge port of more than 2 or 2 evenly can be set in the radial position that the pump housing is positioned at impeller outlet, the radial force be subject to make impeller is in a basic balance, thus improves the reliability of main shaft and bearing.
For the medium lift Pulp pump of small flow, because impeller force in radial is less, only the requirement that 1 discharge port can meet reliability is evenly set in the radial position that the pump housing is positioned at impeller outlet.
The beneficial effects of the utility model are: composite abrasion resistance material parts tool has good wearability, metallic material parts then has good mechanical strength, the impeller combined with bi-material, pump cover and the pump housing, the not only significantly raising that manufactures compared with antifriction metal (AFM) or rubber of wear resistance, mechanical strength also can meet the demands, thus significantly can improve the life-span of flow passage part; Composite abrasion resistance material and metallic material combination is adopted to manufacture enclosed double-entry impeller, not only feasible in technique and cost is controlled; Enclosed double-entry impeller efficiency is high and easily realize high-lift, produces axial force hardly during work, is conducive to the reliability improving bearing; The runner arranged between the upper outside metal layer of the pump housing and intermediate metal layer, reduces the flow velocity of slag slurry, thus reduces wear, and obtain the longer life-span by the larger section of design; Adopt the axial force of Pulp pump of the present utility model operationally suffered by impeller almost complete equilibrium, main shaft and the stressed of bearing are greatly improved, the selection of speed of pump can no longer by the restriction of thrust-bearing limit speed, not only being conducive to Pulp pump realizes high-lift, also the specific speed being conducive to raising pump, to raise the efficiency, also can make the reliability of complete machine be improved simultaneously.Though adopt the Pulp pump of the utility model manufacture to have the shortcoming that complex structure, manufacture cost are higher, the raising of flow passage part life-time dilatation, reliability and these advantages of remarkable lifting of performance, these deficiencies can be made up to a great extent.
Accompanying drawing explanation
Forming a part for the utility model specification, showing the preferred embodiments of the present invention for understanding accompanying drawing of the present utility model further, and be used for the utility model principle is described together with specification, schematic description and description of the present utility model, for explaining the utility model, is not formed improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the sectional view of the utility model embodiment 1;
Fig. 2 is the sectional drawing of Fig. 1 at A-A line;
Fig. 3 is the sectional drawing of Fig. 1 at B-B line;
Fig. 4 is the sectional view of the utility model embodiment 2;
Fig. 5 is the sectional view of the utility model embodiment 3;
Fig. 6 is the sectional view of the utility model embodiment 4.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
In the embodiment 1 shown in Fig. 1, Fig. 2, Fig. 3 and Fig. 4 and embodiment 2, the utility model comprises: bearing portion assembly 2, main shaft 1, pump cover 3, the pump housing 5, impeller 6.
In the embodiment 1 shown in Fig. 1, Fig. 2 and Fig. 3, impeller 6 is combined by composite abrasion resistance material parts 601 and metallic material parts 602, pump cover 3 is arranged between impeller 6 and bearing part assembly 2, combined by composite abrasion resistance material parts 301 and metal parts 302, be provided with rear suction chamber 4; The pump housing 5 is combined by outer metal layer 503, liner composite abrasion resistance material layer 501 and intermediate metal layer 502, be provided with the first discharge port 10, second discharge port 11 be evenly arranged, the radial force that this structure produces when can balance impeller work, improve the stressed of main shaft and bearing, to meet high-lift needs; Material feeding mouth 12 and front suction chamber 7 are all arranged on the pump housing 5; The passage 504 connected between supply pipe 12 and rear suction chamber 4 is provided with between outer metal layer 503 and intermediate metal layer 502; For reducing the wearing and tearing of outer metal layer 503 and intermediate metal layer 502, ensure the life-span of the pump housing 5, the Peak Flow Rate of slag slurry in passage 504 is limited in below 1.5m/s.
In the embodiment shown in fig. 4 in 2, the utility model comprises: bearing portion assembly 2, main shaft 1, pump cover 3, the pump housing 5, impeller 6, and impeller 6 is combined by composite abrasion resistance material parts 601 and metallic material parts 602; Pump cover 3 is arranged between impeller 6 and bearing portion assembly 2, is combined by composite abrasion resistance material parts 301 and metal parts 302, is provided with rear suction chamber 4; The pump housing 5 is combined by outer metal layer 503 and liner composite abrasion resistance material layer 501 and intermediate metal layer 502; For improving the manufacturability of the pump housing, be provided with the second pump cover 8; Second pump cover 8 is combined by metal parts 802 and composite abrasion resistance material parts 801; Front suction chamber 7 is arranged on the second pump cover 8, the outer metal layer 503 on the pump housing 5 and the passage 504 be provided with between intermediate metal layer 502 between connection material feeding mouth 12 and rear suction chamber 4.
In the embodiment shown in fig. 5 in 3, the utility model comprises: bearing portion assembly 2, main shaft 1, pump cover 3, the pump housing 5, impeller 6, and impeller 6 is combined by composite abrasion resistance material parts 601 and metallic material parts 602; Pump cover 3 is arranged between impeller 6 and material feeding mouth 12, is combined by composite abrasion resistance material parts 301 and metal parts 302, is provided with front suction chamber 7; The pump housing 5 is combined by outer metal layer 503 and liner composite abrasion resistance material layer 501 and intermediate metal layer 502; Rear suction chamber 4 is arranged on the pump housing 5, the outer metal layer 503 on the pump housing 5 and the passage 504 be provided with between intermediate metal layer 502 between connection material feeding mouth 12 and rear suction chamber 4.
In the embodiment 4 described in Fig. 6, the utility model comprises: bearing portion assembly 2, main shaft 1, pump cover 3, the pump housing 5, impeller 6, and impeller 6 is combined by composite abrasion resistance material parts 601 and metallic material parts 602; Pump cover 3 is arranged between impeller 6 and bearing portion assembly 2, is combined by composite abrasion resistance material parts 301 and metal parts 302, is provided with rear suction chamber 4; The pump housing 5 is combined by outer metal layer 503 and liner composite abrasion resistance material layer 501 and intermediate metal layer 502; Front suction chamber 7 is arranged on the pump housing 5, the outer metal layer 503 on the pump housing 5 and be provided with the passage 504 connected between material feeding mouth 12 and rear suction chamber 4 between intermediate metal layer 502, is positioned in radial direction that impeller 6 exports only arranges a discharge port 14 at the pump housing 5.The advantage of this structure is that pump housing outside does not need complicated pipeline to connect, but the radial force imbalance suffered by impeller, be suitable only for the operating mode that flow is less and lift is medium.
In above-mentioned 4 embodiments of this specification, main shaft is all arranged horizontally.Obviously, if be arranged vertically by main shaft in other embodiments, also can obtain same effect, therefore such conversion drops within protection domain of the present utility model equally.
Claims (6)
1. a double suction Pulp pump, be made up of bearing portion assembly, main shaft, impeller, the pump housing, pump cover, it is characterized in that: impeller is enclosed double-entry impeller, the side of an one suction port is provided with bearing part group, the side of its another suction port is provided with material feeding mouth; Suction chamber before being provided with between impeller and material feeding mouth, suction chamber after being provided with between impeller and bearing portion assembly; The pump housing is multi-layer structure, and its outer installment has outer metal layer, and inside is provided with liner composite abrasion resistance material layer, is provided with intermediate metal layer outside between metal layer and liner composite wear-resistant layer; The runner of suction chamber after leading to from material feeding mouth is provided with between the outer metal layer and intermediate metal layer of the pump housing; Pump cover is combined by composite abrasion resistance material parts and metallic material parts.
2. a kind of double suction Pulp pump according to claim 1, is characterized in that: the discharge port radial position being positioned at impeller outlet at the pump housing being evenly provided with more than 2 or 2.
3. a kind of double suction Pulp pump according to claim 1, is characterized in that: the radial position being positioned at impeller outlet at the pump housing is provided with a discharge port.
4. a kind of double suction Pulp pump according to Claims 2 or 3, is characterized in that: pump cover is arranged between impeller and bearing portion assembly, is provided with rear suction chamber; Front suction chamber is arranged on the pump housing.
5. a kind of double suction Pulp pump according to Claims 2 or 3, is characterized in that: pump cover is arranged between impeller and bearing portion assembly, is provided with rear suction chamber; The second pump cover is provided with between impeller and material feeding mouth; Second pump cover is formed by metal parts and composite abrasion resistance material component combination; Front suction chamber is arranged on the second pump cover.
6. a kind of double suction Pulp pump according to Claims 2 or 3, is characterized in that: pump cover is arranged between impeller and material feeding mouth, is provided with front suction chamber; Rear suction chamber is arranged on the pump housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359684.XU CN204628002U (en) | 2014-06-27 | 2014-06-27 | A kind of double suction Pulp pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359684.XU CN204628002U (en) | 2014-06-27 | 2014-06-27 | A kind of double suction Pulp pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204628002U true CN204628002U (en) | 2015-09-09 |
Family
ID=54047039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420359684.XU Active CN204628002U (en) | 2014-06-27 | 2014-06-27 | A kind of double suction Pulp pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204628002U (en) |
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2014
- 2014-06-27 CN CN201420359684.XU patent/CN204628002U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151223 Address after: 510115 Guangdong, Guangzhou, Jiefang Middle Road No. 306 on the third floor of the 302 304A room Patentee after: GUANGZHOU TOTALL FLUID EQUIPMENT TECHNOLOGY CO., LTD. Address before: 423000, B, building 601, National Middle Road, national day North Road, Chenzhou, Hunan Patentee before: Xiao Qiong |
|
| DD01 | Delivery of document by public notice |
Addressee: GUANGZHOU TOTALL FLUID EQUIPMENT TECHNOLOGY CO., LTD. Document name: Notification of Passing Examination on Formalities |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 510180 Yuexiu District, Guangzhou, Zhongshan, No. six road, room 238, No. 1204, room Patentee after: GUANGZHOU TOTALL FLUID EQUIPMENT TECHNOLOGY CO., LTD. Address before: 510115 Guangdong, Guangzhou, Jiefang Middle Road No. 306 on the third floor of the 302 304A room Patentee before: GUANGZHOU TOTALL FLUID EQUIPMENT TECHNOLOGY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180403 Address after: 510000 room 1204, West Block 238, six road, Yuexiu District, Guangdong, Guangzhou, Zhongshan Patentee after: New Mstar Technology Ltd in Guangzhou Address before: 510180 Yuexiu District, Guangzhou, Zhongshan, No. six road, room 238, No. 1204, room Patentee before: GUANGZHOU TOTALL FLUID EQUIPMENT TECHNOLOGY CO., LTD. |