CN214742086U - External cooling circulation system for Roots blower unit - Google Patents
External cooling circulation system for Roots blower unit Download PDFInfo
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- CN214742086U CN214742086U CN202121003025.9U CN202121003025U CN214742086U CN 214742086 U CN214742086 U CN 214742086U CN 202121003025 U CN202121003025 U CN 202121003025U CN 214742086 U CN214742086 U CN 214742086U
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- oil
- oil tank
- roots blower
- pipe
- liquid nitrogen
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Abstract
The utility model discloses an external cooling circulation system for a Roots blower unit, which belongs to the technical field of Roots blower equipment and comprises a Roots blower, a main oil tank and an auxiliary oil tank, wherein one side of the main oil tank is provided with an oil pumping pipe, the oil pumping pipe is connected with a tubular cooler through a high-temperature oil pump, the tubular cooler is connected with the side surface of the auxiliary oil tank through an oil discharging pipe, the other side of the main oil tank is provided with an oil return pipe connected with the other side of the auxiliary oil tank, liquid nitrogen flows into the tubular cooler through a cooling circulation pipeline from a liquid nitrogen tank, nitrogen in the tubular cooler is gasified to absorb heat and is changed from liquid state to gas state, so that the temperature in the tubular cooler is greatly reduced and exchanges heat with lubricating oil, thereby the temperature of the lubricating oil is reduced, the gasified nitrogen circulates to a liquid nitrogen refrigerator through a liquid nitrogen pump, the temperature of the lubricating oil flowing into the main oil tank and the auxiliary oil tank can be effectively ensured, provides a good running ring for the Roots blower.
Description
Technical Field
The utility model belongs to the technical field of roots's fan equipment, especially, roots's fan unit is with outer cooling circulation system.
Background
The Roots blower belongs to a positive displacement blower and comprises an impeller end face and front and rear end covers of the blower. The principle of the rotary compressor is that two blade-shaped rotors perform relative motion in a cylinder to compress and convey gas. Simple structure, convenient manufacture, wide application in aquaculture oxygenation, sewage treatment aeration and cement delivery, and more suitability for gas delivery and pressurization systems in low-pressure occasions.
In operation of the roots blower, lubricating oil is required to lubricate gears and bearings. Among the prior art, the friction heat that gear and bearing produced at high-speed operation in-process, when stepping up great, will adopt the better welding oil tank of heat dissipation, and be equipped with the water interlayer in the oil tank, cooling water passes through the cooling water import and takes over and get into main oil tank water interlayer, cools off main oil tank lubricating oil, later gets into the bellytank water interlayer through main bellytank connecting pipe, behind the cooling bellytank lubricating oil, takes over the discharge from the cooling water export, reaches circulative cooling's effect. Such cooling systems require that a source of cooling water must be provided at the site of use, placing a burden on the water resources, and are not available in areas where there is insufficient water supply at the site of use.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect that needs water cooling restriction and wasting of resources among the prior art, the utility model provides a roots is outer cooling circulation system for fan set.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a roots is outer cooling circulation system for fan unit which characterized in that: the oil pumping pipe is arranged on one side of the main oil tank and connected with a tubular cooler through a high-temperature oil pump, the tubular cooler is connected with the side face of the auxiliary oil tank through an oil discharging pipe, a liquid nitrogen tank is arranged on one side of the tubular cooler and connected to the tubular cooler through a cooling circulation pipeline, a valve is arranged at an outlet of the tubular cooler, a liquid nitrogen refrigerator is arranged at an inlet of the tubular cooler and connected with the tubular cooler through a liquid nitrogen pump, and an oil returning pipe connected with the other side of the auxiliary oil tank is arranged on the other side of the main oil tank.
Preferably, a filter is arranged on the oil return pipe.
Preferably, a main oil tank and an auxiliary oil tank are respectively arranged at two ends of the roots blower, and a rotor assembly is arranged in the roots blower.
Preferably, the oil extraction pipe (5) and the oil discharge pipe (8) are respectively connected with an inlet and an outlet of an inner pipe of the pipe cooler (7).
Preferably, the outer pipe of the pipe cooler (7) is connected with a cooling circulation pipeline (15).
Compared with the prior art, the utility model discloses the beneficial effect who has: liquid nitrogen passes through the cooling circulation pipeline by the liquid nitrogen container and flows in the tube cooler in, and nitrogen gas gasification absorbs heat in the tube cooler, becomes the gaseous state by liquid, makes the temperature in the tube cooler reduce by a wide margin to carry out the heat exchange with lubricating oil, thereby makes the lubricating oil temperature reduce, and the nitrogen gas after the gasification circulates to the liquid nitrogen refrigerator through the liquid nitrogen pump, can effectively guarantee to flow in the lubricating oil temperature in main oil tank and the bellytank, provides good operation ring for roots blower.
Drawings
The present invention will be further described with reference to the accompanying drawings and the detailed description.
Fig. 1 is a schematic structural diagram of an external cooling circulation system for a roots blower unit according to the present invention;
in the figure: the system comprises a Roots blower 1, a main oil tank 2, an auxiliary oil tank 3, a rotor assembly 4, an oil pumping pipe 5, a high-temperature oil pump 6, a pipe cooler 7, an oil discharge pipe 8, a liquid nitrogen pump 9, a liquid nitrogen refrigerator 10, a liquid nitrogen tank 11, a valve 12, an oil return pipe 13, a filter 14 and a cooling circulation pipeline 15.
Detailed Description
In order to make the technical solution and the advantageous effects of the present invention more clear, the present invention will be further described in detail with reference to the following embodiments.
The utility model discloses a roots fan is external cooling circulation system for unit, refer to figure 1, it includes roots blower 1, main oil tank 2 and bellytank 3 2 one side of main oil tank is equipped with oil pumping pipe 5, oil pumping pipe 5 is connected with tube cooler 7 through high temperature oil pump 6, tube cooler 7 connects bellytank 3 side through arranging oil pipe 8 tube cooler 7 one side is equipped with liquid nitrogen container 11, liquid nitrogen container 11 is connected to tube cooler 7 through cooling circulation pipeline 15 the export of tube cooler 7 is equipped with valve 12 tube cooler 7's import is equipped with liquid nitrogen refrigerator 10, liquid nitrogen refrigerator 10 is through liquid nitrogen pump 9 connecting tube cooler 7 main oil tank 2 opposite side is equipped with the time oil pipe 13 of connecting bellytank 3 opposite side.
The oil return pipe 13 is provided with a filter 14, so that the lubricating oil flowing out of the cooling circulation system can be effectively filtered, and relatively clean lubricating oil is provided for the main oil tank 2 and the auxiliary oil tank 3.
The two ends of the Roots blower 1 are respectively provided with a main oil tank 2 and an auxiliary oil tank 3, and a rotor assembly 4 is arranged inside the Roots blower 1.
The oil pumping pipe 5 and the oil discharging pipe 8 are respectively connected with an inlet and an outlet of an inner pipe of the pipe cooler 7. The outer pipe of the pipe cooler 7 is connected with a cooling circulation pipeline 15, so that the cooling effect is improved.
The utility model discloses in, high temperature oil pump 6 links to each other through 5 tube cooler 7 of oil extraction pipe, accessible tube cooler 7 dispels the heat to lubricating oil, open valve 12 of 11 lower parts of liquid nitrogen container, the liquid nitrogen flows into tube cooler 7 through the cooling circulation pipeline by liquid nitrogen container 11, nitrogen gas gasification endotherm in tube cooler 7, become the gaseous state by liquid, make the temperature in tube cooler 7 reduce by a wide margin, and carry out the heat exchange with lubricating oil, thereby make the lubricating oil temperature reduce, nitrogen gas after the gasification circulates liquid nitrogen refrigerator 10 through the liquid nitrogen pump.
The tubular cooler 7 is connected with the auxiliary oil tank 3 through the oil discharge pipe 8, so that the lubricating oil of the main oil tank 2 and the auxiliary oil tank 3 is cooled, the oil return pipe 13 is arranged between the main oil tank 2 and the auxiliary oil tank 3, and the circulating cooling effect of the main oil tank 2 and the auxiliary oil tank 3 can be achieved.
It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only, not by way of limitation, since other embodiments will become apparent to those skilled in the art upon consideration of the following detailed description of the invention without any creative effort.
Claims (5)
1. The utility model provides a roots is outer cooling circulation system for fan unit which characterized in that: comprises a Roots blower (1), a main oil tank (2) and an auxiliary oil tank (3), an oil pumping pipe (5) is arranged on one side of the main oil tank (2), the oil pumping pipe (5) is connected with a tubular cooler (7) through a high-temperature oil pump (6), the tubular cooler (7) is connected with the side surface of the auxiliary oil tank (3) through an oil discharge pipe (8), a liquid nitrogen tank (11) is arranged on one side of the tubular cooler (7), the liquid nitrogen tank (11) is connected to the tubular cooler (7) through a cooling circulation pipeline (15), a valve (12) is arranged at the outlet of the tubular cooler (7), a liquid nitrogen refrigerator (10) is arranged at the inlet of the tubular cooler (7), the liquid nitrogen refrigerator (10) is connected with the tubular cooler (7) through a liquid nitrogen pump (9), and an oil return pipe (13) connected with the other side of the auxiliary oil tank (3) is arranged on the other side of the main oil tank (2).
2. The external cooling circulation system for the Roots blower unit as claimed in claim 1, wherein: a filter (14) is arranged on the oil return pipe (13).
3. The external cooling circulation system for the Roots blower unit as claimed in claim 1, wherein: the two ends of the Roots blower (1) are respectively provided with a main oil tank (2) and an auxiliary oil tank (3), and a rotor assembly (4) is arranged in the Roots blower (1).
4. The external cooling circulation system for the Roots blower unit as claimed in claim 1, wherein: the oil pumping pipe (5) and the oil discharging pipe (8) are respectively connected with an inlet and an outlet of an inner pipe of the pipe cooler (7).
5. The external cooling circulation system for the Roots blower unit as claimed in claim 1, wherein: the outer pipe of the pipe cooler (7) is connected with a cooling circulation pipeline (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121003025.9U CN214742086U (en) | 2021-05-12 | 2021-05-12 | External cooling circulation system for Roots blower unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121003025.9U CN214742086U (en) | 2021-05-12 | 2021-05-12 | External cooling circulation system for Roots blower unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214742086U true CN214742086U (en) | 2021-11-16 |
Family
ID=78620791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121003025.9U Active CN214742086U (en) | 2021-05-12 | 2021-05-12 | External cooling circulation system for Roots blower unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214742086U (en) |
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2021
- 2021-05-12 CN CN202121003025.9U patent/CN214742086U/en active Active
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