CN2057233U - Asphalt overflow-preventive pumping device - Google Patents
Asphalt overflow-preventive pumping device Download PDFInfo
- Publication number
- CN2057233U CN2057233U CN 89207681 CN89207681U CN2057233U CN 2057233 U CN2057233 U CN 2057233U CN 89207681 CN89207681 CN 89207681 CN 89207681 U CN89207681 U CN 89207681U CN 2057233 U CN2057233 U CN 2057233U
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- CN
- China
- Prior art keywords
- oil
- way valve
- pitch
- pump
- asphalt
- 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.)
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- Road Paving Machines (AREA)
Abstract
The utility model relates to an asphalt overflow-preventive pumping device, a three-way valve is added to the oil outlet point of oil pump in the original pumping device, the oil inlet of the three-way valve is connected with the oil pump, one of the two oil outlets is open to outside of a heating can, the other oil outlet is connected with a spray pipe, asphalt is imbibed by the oil pump via the three-way valve and the spray pipe and then squirted back to the heating can, breaking the oil film outside a mass of vapor and preventing asphalt overflow effectively, also preventing part of asphalt from appearing an aging process.
Description
The utility model relates to the improvement to a kind of asphalt pump oil installation, and the utility model is mainly used in the circulation and the heating of petroleum tar and coal tar pitch, also can be used for the circulation and the heating of other aqueous material.
Pitch is the main raw material(s) of making pavement of road, also is one of indispensable raw material of other all kinds of civil building engineerings.Pitch is generally solid shape or half shape admittedly under the normal temperature state.When carrying pitch, must heat pitch, it is aqueous that it is become, and could pump from oil tank.When construction is used, also need boil to pitch, slough its moisture content, its viscosity is further reduced, could with the mineral aggregate mixed preparing.
Pitch was being heated when boiling in the past, owing to contain certain moisture content in the pitch, and the surface tension of water molecule is lower than oil molecule.Therefore wrapped up by oil film after the water molecule in the pitch becomes water vapor, can not overflow, formation one is bubble round and round, causes " pot overflows ".So not only wasted pitch, and very dangerous.Because the heat-conducting property of pitch is relatively poor, when heating boiled, often Yin Wendu was too high and aging near thermal source pitch partly, and does not also melt apart from the pitch of thermal source than distal part, has influenced the quality that boils pitch so simultaneously.
The method that in the past addressed these problems is that slowly heating or gradation are added pitch in heating tank, to alleviate " pot overflows " phenomenon; Perhaps inject high pressure air in the heating tank, and use churned mechanically method, smash oil film, water vapor is overflowed.But the employing said method has perhaps influenced work efficiency, and perhaps device is complicated, has increased processing cost, can not wide popularization and application.
The purpose of this utility model is to provide a kind of novel oil pumping device.This device not only can pump heating tank with the pitch that boils, and can make pitch in the inner pump circulation of heating tank in boiling the process of pitch, prevents when boiling pitch that thereby reach the purpose of " pot overflows " and deterioration phenomenon appears in pitch.
Realize that this purpose concrete grammar is, in original oil pumping device, increase circulation loop in the bypass.Circulation loop is made up of oil pump, three-way valve, spray bar etc. in this, and oil pump generally adopts gear-type oil pump.It is external that oil pump can be installed in heating tank, can be the submerged type oil pump also, is installed in the heating tank body.The oil outlet of oil pump is connected with the filler opening of three-way valve with a metal oil conduit.Here used three-way valve is a metal three-way valve commonly used on the general industry.Three-way valve has a filler opening, and two oil outlets are by the valve of a mechanical handling lever operation three-way valve, make it be in different positions, thereby filler opening is communicated with two oil outlets respectively, and an oil outlet of three-way valve is connected with metal tube, and it is external to lead to heating tank; Another oil outlet spray bar interior with being installed in heating tank is connected.Spray bar is the metal tube of a hollow, is drilled with several spray orifices on metal tube.Spray bar is connected with an oil outlet of three-way valve, and the mechanical handling bar of three-way valve is installed in outside the heating tank body.When boiling pitch, by handling the position of the oil outlet connection that filler opening that the mechanical handling bar is in the valve of three-way valve to make three-way valve is connected with spray bar.At this moment, the pitch in the heating tank pumps into three-way valve through oil pump, enters spray bar, sprays back heating tank again.Pitch boil finish in, by handling the mechanical handling bar, the position that the filler opening oil outlet outer with leading to heating tank that the valve of three-way valve is in make three-way valve is connected, at this moment the pitch that boils in the heating tank is pumped into three-way valve by oil pump, flow out heating tank through oil pipe, use for construction.
Fig. 1 is an embodiment of the present utility model.This embodiment is the oil pumping device of submerged type.
Fig. 1 is a submerged type Asphalted oil pump to against overflow schematic representation.Among the figure: 1 motor, 2 coupling, 3 supports, 4 sleeve pipes, 5 transmission shafts, 6 oil pumps, 7 filler openings, 8 three-way valve, 9 spray bars, 10 spray orifices, 11 oil outlets, 12 operating handles.
In conjunction with the embodiments the utility model is further described, oil pump 6 is installed in the heating tank, by being installed in the motor on the end support 31 on the heating tank, drives by the transmission shaft in coupling 2 and the sleeve pipe 45.The filler opening of three-way valve 8 is connected with the oil outlet of oil pump 6 with metal tube.Two oil outlets of three-way valve 8, one to be connected to heating tank with metal tube external, and another is connected with spray bar 9.Spray bar 9 is metal tubes of a hollow, and spray orifice 10 is arranged on the metal tube, and three-way valve 8 and spray bar 9 are all in the heating tank body.Three-way valve 8 is handled by extending to the outer operating handle of heating tank 12.This Asphalted oil pump to against overflow has two kinds of working staties.When boiling pitch, the pitch in the heating tank is sucked from filler opening 7 by oil pump 6, and is pumped to three-way valve 8.The filler opening of three-way valve 8 is communicated with the oil outlet that is being connected spray bar 9, and the pitch that pumps into three-way valve 8 enters spray bar 9, and sprays back heating tank from spray orifice 10, circulation loop in forming.When pitch sprays back pitch in the heating tank from the spray orifice 10 on the spray bar 9, smashed the outside oil film of water vapour group, water vapour is entered in the air, prevented " overflow pot ".Its effect is similar to the positive drive type mechanical agitation.Because inner pump circulation effect tends to balance the temperature between interior each one of pitch of heating tank, avoid the phenomenon of local superheating simultaneously, improved the quality that boils pitch.When pitch boil finish after, the filler opening that makes three-way valve 8 by operating handle 12 oil outlet outer with leading to heating tank is communicated with, the pitch that boils is sucked from filler opening 7 by oil pump 6, by three-way valve 8, flows out heating tank, for the use of constructing.
The utility model is simple in structure, and is easy to utilize. Be not only applicable to construction of the highway department, be applicable to other architectural engineering industry yet.
Claims (2)
1, a kind of Asphalted oil pump to against overflow, form by motor, oil pump etc., it is characterized in that, in original pump oil, in the device,, increase a three-way valve by the mechanical handling lever operation at the oil outlet place of oil pump, the filler opening of three-way valve is connected with the oil outlet of oil pump, two oil outlets of three-way valve, one leads to outside the heating tank with metal oil conduit, and another is connected with spray bar.
2, asphalt pump oil installation as claimed in claim 1 is characterized in that, the spray bar of being narrated is the metal tube of a hollow, is processed with spray orifice on spray bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207681 CN2057233U (en) | 1989-05-23 | 1989-05-23 | Asphalt overflow-preventive pumping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89207681 CN2057233U (en) | 1989-05-23 | 1989-05-23 | Asphalt overflow-preventive pumping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057233U true CN2057233U (en) | 1990-05-16 |
Family
ID=4864499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89207681 Withdrawn CN2057233U (en) | 1989-05-23 | 1989-05-23 | Asphalt overflow-preventive pumping device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057233U (en) |
-
1989
- 1989-05-23 CN CN 89207681 patent/CN2057233U/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |