CN111207071A - Heat-preservation screw pump - Google Patents
Heat-preservation screw pump Download PDFInfo
- Publication number
- CN111207071A CN111207071A CN201811390160.6A CN201811390160A CN111207071A CN 111207071 A CN111207071 A CN 111207071A CN 201811390160 A CN201811390160 A CN 201811390160A CN 111207071 A CN111207071 A CN 111207071A
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- China
- Prior art keywords
- cover plate
- pump
- heat
- screw
- pump shell
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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
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
- F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
- F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0003—Sealing arrangements in rotary-piston machines or pumps
- F04C15/0034—Sealing arrangements in rotary-piston machines or pumps for other than the working fluid, i.e. the sealing arrangements are not between working chambers of the machine
- F04C15/0038—Shaft sealings specially adapted for rotary-piston machines or pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0096—Heating; Cooling
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The invention discloses a heat-preservation screw pump, wherein two ends of a pump shell are respectively connected with a left cover plate and a right cover plate, two sides of the pump shell are respectively provided with a heat-conducting oil inlet and a heat-conducting oil outlet, the right cover plate is externally connected with a sealing cover, and gaskets are respectively arranged between the left cover plate, the right cover plate and the pump shell; a screw rod is arranged in a pump shell, a gear and the screw rod are mutually matched and connected, a pump sleeve and a bearing seat are sequentially arranged between the screw rod and the pump shell, a bearing is arranged between the screw rod and a right cover plate, and a mechanical seal is arranged between the screw rod and a seal cover; an electric heating rod is arranged in the left cover plate, and an oil drainage bolt is arranged on one side of the left cover plate; the single-screw pump has good heat preservation effect, thereby ensuring that the medium cannot be solidified and agglomerated at low temperature, simultaneously ensuring that the transmission shaft is oil-tight, and having very small use power.
Description
Technical Field
The invention relates to the technical field of transport pumps, in particular to a heat-preservation screw pump.
Background art screw pumps are rotary pumps that convey liquid or pressurize it by changing and moving the volume of an engagement space formed by a pump body and screws, and are classified into single screw pumps, twin screw pumps, triple screw pumps, and the like according to the number of screws. The single screw pump is a single screw type transport pump, and its working principle is that when the motor drives the pump shaft to rotate, the screw rod rotates around its own axis, and on the other hand it rolls along the inner surface of the lining, so that the sealed cavity of the pump is formed, and when the screw rod rotates one circle, the liquid in the sealed cavity is pushed forward by a screw pitch, and along with the continuous rotation of the screw rod, the liquid is spirally pressed from one sealed cavity to another sealed cavity, and finally the pump body is extruded. As a novel liquid conveying machine, the single-screw pump has the advantages of simple structure, safe and reliable work, convenient use and maintenance, continuous and uniform liquid outlet, stable pressure and the like, so the single-screw pump is widely applied to the market.
In recent years, with the continuous progress of science and technology, the technical requirements of various industries on the single-screw pump are higher and higher, so that the technical level of the single-screw pump is continuously improved; however, the improvement of the transmission shaft is still continued, and meanwhile, certain disadvantages exist, for example, the overall heat preservation effect is poor, the medium is easy to solidify and agglomerate at low temperature, so that the normal transmission of the medium is seriously affected, in addition, the overall volume and the use power of the transmission shaft are large, and the oil leakage phenomenon is easy to occur at the transmission shaft.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the defects, the invention aims to provide the heat-preservation screw pump which has good heat-preservation effect, thereby ensuring that a medium cannot be solidified and agglomerated at a low temperature, ensuring that a transmission shaft is oil-tight, and having very small use power.
The technical scheme is as follows: in order to achieve the purpose, the heat-preservation screw pump comprises a pump shell, a left cover plate, a right cover plate, a sealing cover, a gear, a screw, a heat-conducting oil inlet, a heat-conducting oil outlet, a gasket, an electric heating rod, an oil drainage bolt, a pump sleeve, a bearing seat, a bearing and a mechanical seal, and has the advantages of small overall volume, light weight and small use power; the two ends of the pump shell are respectively connected with the left cover plate and the right cover plate, the two sides of the pump shell are respectively provided with a heat conduction oil inlet and a heat conduction oil outlet, and the heat conduction oil circulation is utilized to carry out heat preservation on the pump, so that the medium is prevented from being solidified and agglomerated at low temperature, and the conveying efficiency of the medium is ensured; the right cover plate is externally connected with a sealing cover, and gaskets are arranged between the left cover plate, the right cover plate and the pump shell, so that the overall sealing performance of the pump shell is improved; a screw is arranged in the pump shell, the gear and the screw are mutually matched and connected, a pump sleeve and a bearing seat are sequentially arranged between the screw and the pump shell, and a bearing is arranged between the screw and the right cover plate; a mechanical seal is arranged between the screw and the seal cover, so that no oil leakage at the transmission shaft is ensured; the left cover plate is internally provided with an electric heating rod, one side of the left cover plate is provided with an oil drainage bolt, and a worker adjusts the temperature of heat conduction oil by controlling the electric heating rod and the oil drainage bolt according to actual needs, so that the heating and heat preservation effects of the left cover plate are further improved.
Preferably, in the above-mentioned heat-preservation screw pump, the gasket is made of asbestos paper material, which has excellent heat insulation, fire prevention and electrical insulation properties, and well ensures the sealing performance of the pump.
Preferably, in the heat-preservation screw pump, the pump casing is internally provided with a self-suction device, so that the phenomenon of no leakage is further ensured after long-time work.
Preferably, in the heat-preservation screw pump, the right cover plate is fixedly connected with the sealing cover through a bolt.
Preferably, in the heat-preservation screw pump, the pump shell is fixedly connected with the left cover plate through bolts, and the assembly and disassembly are convenient and rapid.
Preferably, the screw rod of the heat-preservation screw pump is made of stainless steel materials, so that the heat-preservation screw pump is good in wear resistance and long in service life.
Preferably, in the heat-insulating screw pump, the pipe diameter of the heat-conducting oil inlet is slightly larger than that of the heat-conducting oil outlet, so that the heating and heat-insulating effects are remarkable.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. according to the heat-preservation screw pump, the heat-conducting oil is used for preserving heat of the pump, so that the medium is prevented from being solidified and agglomerated at a low temperature, and the conveying efficiency of the medium is guaranteed; and the staff can adjust the temperature of conduction oil at any time through controlling the electric bar and the oil drain bolt according to actual need to further promote its heating heat preservation effect.
2. The heat-preservation screw pump is small in overall size, light in weight and small in using power.
3. According to the heat-preservation screw pump, the gasket and the mechanical seal of the heat-preservation screw pump greatly improve the overall sealing performance of the pump, and oil leakage at a transmission shaft is well guaranteed.
4. The stainless steel screw of the heat-preservation screw pump is good in wear resistance and long in service life; and the self-suction device arranged in the pump further ensures that the pump does not leak after working for a long time; in addition, the assembly and disassembly of each part are very convenient and fast.
Drawings
FIG. 1 is a schematic view showing the overall structure of a single-screw pump according to the present invention.
In the figure: pump case 1, 2 left side apron, 3 right side apron, 4 sealed lids, 5 gears, 6 screws, 7 conduction oil import, 8 conduction oil export, 9 gaskets, 10 electric heat bars, 11 oil drain bolts, 12 pump casings, 13 bearing blocks, 14 bearings, 15 mechanical seal.
Detailed Description
The invention is further elucidated with reference to the drawings and the embodiments.
Example 1
As shown in fig. 1, the heat-preservation screw pump of the embodiment includes a pump casing 1, a left cover plate 2, a right cover plate 3, a sealing cover 4, a gear 5, a screw 6, a heat-conducting oil inlet 7, a heat-conducting oil outlet 8, a gasket 9, an electric heating rod 10, an oil drainage bolt 11, a pump sleeve 12, a bearing seat 13, a bearing 14 and a mechanical seal 15; two ends of a pump shell 1 are respectively connected with a left cover plate 2 and a right cover plate 3, two sides of the pump shell 1 are respectively provided with a heat conduction oil inlet 7 and a heat conduction oil outlet 8, heat conduction oil is conveyed to the heat conduction oil inlet 7, heat preservation is carried out on the pump by utilizing heat conduction oil circulation, and the fact that a medium cannot be solidified and caked at a low temperature is guaranteed; the right cover plate 3 is externally connected with a sealing cover 4, and gaskets 9 are arranged between the left cover plate 2, the right cover plate 3 and the pump shell 1, so that the sealing performance of the pump is greatly improved; a screw 6 is arranged in a pump shell 1, a gear 5 and the screw 6 are mutually matched and connected, a pump sleeve 12 and a bearing seat 13 are sequentially arranged between the screw 6 and the pump shell 1, and a bearing 14 is arranged between the screw 6 and a right cover plate 3; the mechanical seal 15 arranged between the screw 6 and the sealing cover 4 ensures that the transmission shaft is oil-tight; the inside electric rod 10 that is equipped with of its left side apron 2, one side is equipped with oil drain bolt 11, and the staff adjusts the temperature of conduction oil through control electric rod 10 and oil drain bolt 11 according to actual need, has further promoted its heat retaining effect of heating. Wherein the washer 9 is made of asbestos paper material and the screw 6 is made of stainless steel material; in addition, a self-suction device is further arranged inside the pump shell 1, the right cover plate 3 is fixedly connected with the sealing cover 4 through a bolt, the pump shell 1 is fixedly connected with the left cover plate 2 through a bolt, and the pipe diameter of the heat conduction oil inlet 7 is slightly larger than that of the heat conduction oil outlet 8.
Example 2
As shown in fig. 1, the heat-preservation screw pump of the embodiment includes a pump casing 1, a left cover plate 2, a right cover plate 3, a sealing cover 4, a gear 5, a screw 6, a heat-conducting oil inlet 7, a heat-conducting oil outlet 8, a gasket 9, an electric heating rod 10, an oil drainage bolt 11, a pump sleeve 12, a bearing seat 13, a bearing 14 and a mechanical seal 15; two ends of a pump shell 1 are respectively connected with a left cover plate 2 and a right cover plate 3, two sides of the pump shell 1 are respectively provided with a heat conduction oil inlet 7 and a heat conduction oil outlet 8, heat conduction oil is conveyed to the heat conduction oil inlet 7, heat preservation is carried out on the pump by utilizing heat conduction oil circulation, and the fact that a medium cannot be solidified and caked at a low temperature is guaranteed; the right cover plate 3 is externally connected with a sealing cover 4, and gaskets 9 are arranged between the left cover plate 2, the right cover plate 3 and the pump shell 1, so that the sealing performance of the pump is greatly improved; a screw 6 is arranged in a pump shell 1, a gear 5 and the screw 6 are mutually matched and connected, a pump sleeve 12 and a bearing seat 13 are sequentially arranged between the screw 6 and the pump shell 1, and a bearing 14 is arranged between the screw 6 and a right cover plate 3; the mechanical seal 15 arranged between the screw 6 and the sealing cover 4 ensures that the transmission shaft is oil-tight; the inside electric rod 10 that is equipped with of its left side apron 2, one side is equipped with oil drain bolt 11, and the staff adjusts the temperature of conduction oil through control electric rod 10 and oil drain bolt 11 according to actual need, has further promoted its heat retaining effect of heating.
Claims (4)
1. A heat preservation screw pump is characterized in that: the method comprises the following steps: the device comprises a pump shell (1), a left cover plate (2), a right cover plate (3), a sealing cover (4), a gear (5), a screw (6), a heat conduction oil inlet (7), a heat conduction oil outlet (8), a gasket (9), an electric heating rod (10), an oil drainage bolt (11), a pump sleeve (12), a bearing seat (13), a bearing (14) and a mechanical seal (15);
the pump shell is characterized in that two ends of the pump shell (1) are respectively connected with a left cover plate (2) and a right cover plate (3), two sides of the pump shell (1) are respectively provided with a heat conduction oil inlet (7) and a heat conduction oil outlet (8), the right cover plate (3) is externally connected with a sealing cover (4), and gaskets (9) are respectively arranged between the left cover plate (2), the right cover plate (3) and the pump shell (1); a screw rod (6) is arranged in the pump shell (1), the gear (5) and the screw rod (6) are mutually matched and connected, a pump sleeve (12) and a bearing seat (13) are sequentially arranged between the screw rod (6) and the pump shell (1), a bearing (14) is arranged between the screw rod (6) and the right cover plate (3), and a mechanical seal (15) is arranged between the screw rod (6) and the seal cover (4); an electric heating rod (10) is arranged in the left cover plate (2), and an oil drainage bolt (11) is arranged on one side of the left cover plate.
2. A heat-insulating screw pump according to claim 1, wherein: the spacer (9) is made of a asbestos paper material.
3. A heat-insulating screw pump according to claim 1, wherein: the pump shell (1) is internally provided with a self-suction device.
4. A heat-insulating screw pump according to claim 1, wherein: the right cover plate (3) is fixedly connected with the sealing cover (4) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390160.6A CN111207071A (en) | 2018-11-21 | 2018-11-21 | Heat-preservation screw pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811390160.6A CN111207071A (en) | 2018-11-21 | 2018-11-21 | Heat-preservation screw pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111207071A true CN111207071A (en) | 2020-05-29 |
Family
ID=70787575
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811390160.6A Pending CN111207071A (en) | 2018-11-21 | 2018-11-21 | Heat-preservation screw pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111207071A (en) |
-
2018
- 2018-11-21 CN CN201811390160.6A patent/CN111207071A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200529 |
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| WD01 | Invention patent application deemed withdrawn after publication |