CN209761746U - Horizontal single-stage single-suction centrifugal coal slurry pump - Google Patents
Horizontal single-stage single-suction centrifugal coal slurry pump Download PDFInfo
- Publication number
- CN209761746U CN209761746U CN201920408838.2U CN201920408838U CN209761746U CN 209761746 U CN209761746 U CN 209761746U CN 201920408838 U CN201920408838 U CN 201920408838U CN 209761746 U CN209761746 U CN 209761746U
- Authority
- CN
- China
- Prior art keywords
- suspension
- impeller
- pump
- pump shaft
- pump body
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a horizontal single-stage single-suction centrifugal coal slurry pump, which comprises a front pump body, a rear pump body, a suspension, an impeller, a volute, a rear lining plate, a blocking impeller and a pump shaft, wherein the front pump body and the rear pump body are combined to form a working cavity; the pump shaft transversely passes through the suspension, the left end of the pump shaft transversely passes through the suspension, the right end of the pump shaft transversely passes through the suspension, the outer side of the suspension is arranged at the right end of the pump shaft, a mechanical sealing device is sleeved on the pump shaft inside the suspension, an impeller with auxiliary blades is arranged on the pump shaft in the impeller accommodating cavity, and a blocking impeller is arranged on the pump shaft, between a rear lining plate and the mechanical sealing device, on the right side of the impeller. The utility model discloses an impeller auxiliary blade and hinder and seal the impeller design, can promote the structure volumetric efficiency of no mouth ring flow, reduce sealed chamber pressure, the lift seals the life-span.
Description
Technical Field
The utility model relates to a centrifugal pump field specifically is a centrifugal coal stuff pump is singly inhaled to horizontal single-stage.
Background
The development and use of coal cause serious pollution to the environment, and in order to utilize coal resources more cleanly and efficiently, an ultra-clean auxiliary industrial product is produced by a coal chemical technology, so that the method is one of important ways for clean utilization of coal, and the industry accords with the development direction of novel industrialization. In the coal chemical process flow, a high-temperature oil-coal slurry needs to be conveyed, which is a solid-liquid mixture with certain viscosity (less than 1200mPa.s) and containing a medium (60-65 wt% of solid coal powder, 1% of additive and the balance of liquid solvent water) with high-concentration abrasive particles, and because the medium viscosity is extremely high and the solid content of the medium is large, the requirement on wear resistance is extremely high, centrifugal conveying is generally adopted at present, but with the expansion of the application range and the adjustment of the coal chemical process, the working condition of high-lift conveying of the coal-water slurry occurs, and the centrifugal pump has two modes for improving the lift: the diameter of the impeller is increased, the running speed is increased, but the two modes can reduce the volumetric efficiency of the centrifugal pump, and the pressure of the sealing cavity is increased, so that the service life of the mechanical seal is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned problem, a horizontal single-stage single suction centrifugation coal stuff pump is provided.
In order to achieve the above object, the utility model provides a following technical scheme:
The utility model provides a centrifugal coal stuff pump is inhaled to horizontal single-stage list, includes preceding pump body, the back pump body, suspension, impeller, spiral case, back welt, hinders and seals impeller, pump shaft, its characterized in that: the front pump body and the rear pump body are combined to form a working cavity, the front pump body is provided with an inlet and an outlet which are communicated with the working cavity, the front pump body in the working cavity is provided with a volute, the rear pump body is provided with a rear lining plate, an impeller accommodating cavity is formed between the volute and the rear lining plate, and the outer side of the rear pump body is provided with a suspension; the pump shaft transversely passes through the suspension, the left end of the pump shaft transversely passes through the suspension, the right end of the pump shaft is arranged on the outer side of the suspension, a mechanical sealing device is sleeved on the pump shaft inside the suspension, an impeller with auxiliary blades is arranged on the pump shaft in the impeller accommodating cavity, and a blocking impeller is arranged on the pump shaft, between a rear lining plate and the mechanical sealing device, on the right side of the impeller.
in a further improvement, an inlet short pipe and an outlet short pipe are respectively arranged on an inlet and an outlet of the front pump body.
In a further improvement, the left end of the mechanical sealing device is fixed on the rear pump body, and a sealing baffle plate is fixed on the left end surface of the mechanical sealing device.
The pump shaft is rotatably arranged on the suspension through a left bearing device and a right bearing device which are arranged in the suspension, and the outer sides of the left bearing device and the right bearing device are respectively provided with a bearing cover and a dust cover.
In the suspension, an oil ring for assisting bearing lubrication and a snap ring for limiting positions are arranged on a pump shaft between a left group of bearing devices and a right group of bearing devices in the suspension.
In a further improvement, a bearing lubricating oil tank is arranged between two groups of bearing devices in an inner cavity of the suspension, and an oil pointer and a micro-liquid level oil supplementing device are arranged outside the bearing lubricating oil tank.
The front end of the impeller is fixed on the pump shaft through an impeller retainer ring, a half gasket and an impeller nut.
In a further improvement, a protective net is arranged on the pump shaft on the right side of the mechanical sealing device.
In a further improvement, a bracket is mounted at the bottom of the suspension.
In a further improvement, the suspension and the upper end of the rear pump body are provided with a hanging ring.
The utility model has the advantages of it is following: the utility model discloses a centrifugal coal stuff pump adopts the impeller auxiliary blade and hinders the design of sealing the impeller, can promote no mouth ring on the one hand and flow structure volumetric efficiency, and on the other hand reduces sealed chamber pressure, and the lift seals the life-span.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
Fig. 2 is a right side view of fig. 1.
Detailed Description
In order to make the technical means of the present invention known to those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-2, the utility model discloses a horizontal single-stage single-suction centrifugal coal slurry pump, including the front pump body 1, the back pump body 2, the suspension 5, impeller 14, spiral case 15, back welt 16, block impeller 19, pump shaft 21, the combination of the front pump body 1 and the back pump body 2 forms working chamber a, be equipped with the import and the export with working chamber a intercommunication on the front pump body 1, import and export inboard are installed with import bushing pipe 17 and export bushing pipe 18 respectively, export bushing pipe 18 and export junction are sealed through packing cover 25 and packing retaining ring 26; the outer parts of the inlet and the outlet are respectively connected with an inlet short pipe 3 and an outlet short pipe 4 through bolts, a volute 15 is arranged on the front pump body 1 in the working cavity A, a rear lining plate 16 is arranged on the rear pump body 2, an impeller accommodating cavity B is formed between the volute 15 and the rear lining plate 16, and a suspension 5 is arranged on the outer side of the rear pump body 2; the pump shaft 21 transversely penetrates through the suspension 5, the left end of the pump shaft is arranged in the working cavity A, the right end of the pump shaft is arranged on the outer side of the suspension 5, a mechanical sealing device 13 is sleeved on the pump shaft 21 in the suspension 5, the left end of the mechanical sealing device 13 is fixed on the rear pump body 2, and a blocking and separating plate 20 is fixed on the left end face of the mechanical sealing device; an impeller 14 with auxiliary blades 141 is arranged on a pump shaft 21 in the impeller accommodating cavity B, the front end of the impeller 14 is fixed on the pump shaft 21 through an impeller retainer ring 24, a half gasket 23 and an impeller nut 22, and a blocking impeller 19 is arranged on the pump shaft 21, which is positioned between the rear lining plate 16 and the mechanical sealing device 13, on the right side of the impeller 14.
The pump shaft 21 is rotatably mounted on the suspension 5 through a left bearing device and a right bearing device 9 which are arranged in the suspension 5, the outer sides of the left bearing device and the right bearing device 9 are respectively provided with a bearing cover 8 and a dust cover 7, the bearing supports the pump shaft 21 to rotate under the driving of a motor, and the bearing cover 8 and the dust cover 7 protect the bearing and avoid the interference of the external environment; two oil rings 11 for assisting bearing lubrication and two clamping rings 12 for limiting positions are arranged on a pump shaft 21 between a left bearing device and a right bearing device in the suspension 5; a bearing lubricating oil tank is arranged between two groups of bearing devices in the inner cavity of the suspension 5, an oil pointer 30 and a micro-liquid level oil supply device 29 are arranged outside the bearing lubricating oil tank, the oil pointer 30 can observe the use condition of lubricating oil, and the micro-liquid level oil supply device 29 is convenient for supplying the lubricating oil.
A protective net 28 is arranged on the pump shaft 21 on the right side of the mechanical sealing device 13, and the protective net 28 is arranged on the pump shaft 21 between the mechanical sealing device 13 and the left bearing device 9 and used for protecting the pump shaft 21; the bottom of the suspension 5 is provided with a bracket 6 for installation; the suspension 5 and the upper end of the rear pump body 2 are provided with a hanging ring 31, so that the lifting is convenient.
It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that various changes and modifications may be made without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (10)
1. The utility model provides a centrifugal coal stuff pump is inhaled to horizontal single-stage list, includes preceding pump body, the back pump body, suspension, impeller, spiral case, back welt, hinders and seals impeller, pump shaft, its characterized in that: the front pump body and the rear pump body are combined to form a working cavity, the front pump body is provided with an inlet and an outlet which are communicated with the working cavity, the front pump body in the working cavity is provided with a volute, the rear pump body is provided with a rear lining plate, an impeller accommodating cavity is formed between the volute and the rear lining plate, and the outer side of the rear pump body is provided with a suspension; the pump shaft transversely passes through the suspension, the left end of the pump shaft transversely passes through the suspension, the right end of the pump shaft is arranged on the outer side of the suspension, a mechanical sealing device is sleeved on the pump shaft inside the suspension, an impeller with auxiliary blades is arranged on the pump shaft in the impeller accommodating cavity, and a blocking impeller is arranged on the pump shaft, between a rear lining plate and the mechanical sealing device, on the right side of the impeller.
2. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: and an inlet short pipe and an outlet short pipe are respectively arranged on the inlet and the outlet of the front pump body.
3. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: the left end of the mechanical sealing device is fixed on the rear pump body, and a sealing baffle plate is fixed on the left end face of the mechanical sealing device.
4. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: the pump shaft is rotatably arranged on the suspension through a left group of bearing devices and a right group of bearing devices which are arranged in the suspension, and the outer sides of the left group of bearing devices and the right group of bearing devices are respectively provided with a bearing cover and a dust cover.
5. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 4, characterized in that: and an oil ring for assisting bearing lubrication and a snap ring for limiting the position are arranged on a pump shaft between the left and right bearing devices in the suspension.
6. The horizontal single-stage single-suction centrifugal slurry pump according to claim 5, characterized in that: a bearing lubricating oil tank is arranged between two groups of bearing devices in the inner cavity of the suspension, and an oil pointer and a micro-liquid level oil supplementing device are arranged outside the bearing lubricating oil tank.
7. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: the front end of the impeller is fixed on the pump shaft through an impeller retainer ring, a half gasket and an impeller nut.
8. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: and a protective net is arranged on the pump shaft on the right side of the mechanical sealing device.
9. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: and a bracket is arranged at the bottom of the suspension.
10. The horizontal single-stage single-suction centrifugal coal slurry pump according to claim 1, characterized in that: and the suspension and the upper end of the rear pump body are provided with lifting rings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408838.2U CN209761746U (en) | 2019-03-28 | 2019-03-28 | Horizontal single-stage single-suction centrifugal coal slurry pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920408838.2U CN209761746U (en) | 2019-03-28 | 2019-03-28 | Horizontal single-stage single-suction centrifugal coal slurry pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209761746U true CN209761746U (en) | 2019-12-10 |
Family
ID=68756757
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920408838.2U Active CN209761746U (en) | 2019-03-28 | 2019-03-28 | Horizontal single-stage single-suction centrifugal coal slurry pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209761746U (en) |
-
2019
- 2019-03-28 CN CN201920408838.2U patent/CN209761746U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205078456U (en) | Two shell sediment stuff pumps | |
| CN202646021U (en) | Improved slurry pump | |
| CN101191492A (en) | High temperature high impurity ratio centrifugal coal slurry pump | |
| CN209761746U (en) | Horizontal single-stage single-suction centrifugal coal slurry pump | |
| CN205533263U (en) | High -efficient multi -functional water pump | |
| CN201106565Y (en) | High-temperature high sundry-ratio centrifugal type coal liquid pump | |
| CN102678629A (en) | Improved slurry pump | |
| CN201521451U (en) | Slurry pump | |
| CN203570643U (en) | Water lubricating sliding bearing device for long shaft pump | |
| CN205383085U (en) | Vertical two -stage centrifugation slurry pump | |
| CN209800345U (en) | integrated clean water lubricating device for high-sediment river pump station | |
| CN211514890U (en) | Sealing device of manual loading and unloading closed centrifugal machine | |
| CN210164650U (en) | Wear-resisting type chemical process pump | |
| CN202348682U (en) | Slow-rotary-speed corrosion-resisting wear-resisting centrifugal pump | |
| CN207686995U (en) | It is pumped without reliable float is blocked | |
| CN204253452U (en) | High-temperature and high-pressure wearable pump | |
| CN203430843U (en) | Three-stage sealed type special coal-washing pump | |
| CN203098395U (en) | Clamping installation type centrifugal pump volute | |
| CN202187932U (en) | Hard alloy idling amphibious sand pump capable of being connected in series | |
| CN200989323Y (en) | Centrifugal coal slurry pump with double vane structure | |
| CN205383104U (en) | Water pump with elasticity sealing ring that partly suspends | |
| CN212615390U (en) | Filter press feed pump with inlet edge extending forwards and large wrap angle impeller | |
| CN204175654U (en) | Certainly the flushing mine tailings stock pump of a kind of high sealing, improved corrosion | |
| CN202483887U (en) | Petrochemical colloidal particle water pump | |
| CN218030678U (en) | Novel immersible pump of high wearability |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |