CN216008893U - Double-volume type pump set - Google Patents
Double-volume type pump set Download PDFInfo
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- CN216008893U CN216008893U CN202122620405.3U CN202122620405U CN216008893U CN 216008893 U CN216008893 U CN 216008893U CN 202122620405 U CN202122620405 U CN 202122620405U CN 216008893 U CN216008893 U CN 216008893U
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Abstract
The utility model discloses a double-volume type pump group, which belongs to the technical field of volume type screw pumps, and comprises two double-screw pumps with the same size and performance, wherein each double-screw pump is provided with a valve block communicated with a high-pressure cavity, namely a first valve block and a second valve block, the upper end surfaces of the first valve block and the second valve block are provided with a balance oil port, balance oil pipes are arranged on the balance oil ports of the first valve block and the second valve block, and the balance oil pipes communicate the high-pressure cavities of the two double-screw pumps to form a balance pressure regulating oil path; an overflow valve is arranged on the first valve block or the second valve block; and a pressure relief pipeline is arranged on the first valve block or the second valve block provided with the overflow valve. The utility model discloses can be applicable to the narrow and small operational environment of installation space, effectively improve space utilization.
Description
Technical Field
The utility model belongs to the technical field of positive displacement screw pump, especially, relate to a two positive displacement pump package.
Background
The twin-screw pump is a positive displacement pump, which is widely used in various industrial fields such as petroleum, chemical industry and ships to transport various media. Since the screw pumps invented in various countries in the eighteenth century, the screw pumps have the same and different structures, each part has the purpose, the performance and the reliability of the screw pump can be influenced by profound changes, when the screw pumps are applied to some special working conditions, the external dimension of the pump is strictly limited, the axial dimension of the three screw pumps is longer, a single pump occupies a larger space, and the utilization rate of the space can not be ensured under some working conditions with strict space requirements.
Disclosure of Invention
Problem to prior art existence, the utility model provides a two volume formula pump package can be applicable to the operational environment that installation space is narrow and small, effectively improves space utilization.
The utility model discloses a realize like this, a double-volume formula pump package, including two double screw pumps of the same size, performance, all be equipped with the valve block that communicates with the high-pressure chamber on each double screw pump, be first valve block and second valve block respectively, first valve block and second valve block up end are equipped with balanced hydraulic fluid port, install balanced oil pipe on the balanced hydraulic fluid port of first valve block and second valve block, balanced oil pipe communicates the high-pressure chamber of two double screw pumps and forms balanced pressure regulating oil circuit; an overflow valve is arranged on the first valve block or the second valve block; and a pressure relief pipeline is arranged on the first valve block or the second valve block provided with the overflow valve.
Furthermore, the pressure relief pipeline is connected with an inlet of the double-screw pump.
Furthermore, the pressure relief pipeline is connected with a lubricating cavity of the double-screw pump.
The utility model has the advantages and technological effect: due to the adoption of the technical scheme, the device can be suitable for the working environment with narrow installation space, and the space utilization rate is effectively improved. Compared with a three-screw pump, the two smaller double-screw pumps occupy two smaller spaces, and can be arranged at the corners inside the diesel engine under the condition of strict space requirements, such as inside the diesel engine, so that the space utilization rate can be effectively improved; the balance oil pipe is used for balancing the performance parameter difference of the two twin-screw pumps caused by the reasons such as part machining errors, so that the output parameters of the two twin-screw pumps are consistent, and the pressure parameters of the twin-screw pumps are finely adjusted through the overflow valve.
Drawings
Fig. 1 is a schematic diagram of the overall structure provided by the embodiment of the present invention;
fig. 2 is an internal schematic view of the overflow valve installed according to the embodiment of the present invention.
In the figure, 1, a double-screw pump; 1-1, a high pressure cavity; 2. a valve block; 2-1, a first valve block; 2-2, a second valve block; 2-3, balancing oil ports; 3. balancing the oil pipe; 4. an overflow valve; 5. a pressure relief pipeline.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
As shown in fig. 1 and 2, the present application provides a dual-volume pump set, which includes two twin-screw pumps 1 having the same size and performance, each of the twin-screw pumps is provided with a valve block 2 communicated with a high-pressure chamber 1-1, the valve block is a first valve block 2-1 and a second valve block 2-2, the upper end surfaces of the first valve block and the second valve block are provided with balancing oil ports 2-3, balancing oil pipes 3 are installed on the balancing oil ports of the first valve block and the second valve block, and the balancing oil pipes communicate the high-pressure chambers 1-1 of the two twin-screw pumps 1 to form a balancing pressure-regulating oil path; an overflow valve 4 is arranged on the first valve block 2-1 or the second valve block 2-2; and a pressure relief pipeline 5 is arranged on the first valve block or the second valve block provided with the overflow valve.
The pressure relief pipeline is connected with an inlet of the double-screw pump 1 and can also be connected with a lubricating cavity of the double-screw pump. So that the medium forms a closed loop and realizes cyclic utilization.
When the two double-screw pumps work, the two double-screw pumps 1 are driven synchronously and run synchronously, a medium in a high-pressure cavity 1-1 of one double-screw pump is led into a high-pressure cavity of the other double-screw pump through the balance oil pipe 3, and the high-pressure cavities of the two double-screw pumps are communicated through the balance oil pipe to form pressure balance. The medium is discharged to an inlet pipeline of the double-screw pump or other required lubricating cavities of the double-screw pump through a pressure relief pipeline 5 by adjusting the overflow valve 4. Regulating the relief valve 4 also regulates the relief pressure.
Due to the adoption of the technical scheme, the device can be suitable for the working environment with narrow installation space, and the space utilization rate is effectively improved. Compared with a three-screw pump, the two smaller double-screw pumps occupy two smaller spaces, and can be arranged at the corners inside the diesel engine under the condition of strict space requirements, such as inside the diesel engine, so that the space utilization rate can be effectively improved; the balance oil pipe 3 is used for balancing the performance parameter difference of the two twin-screw pumps 1 caused by the reasons such as part machining errors, so that the output parameters of the two twin-screw pumps are consistent, and the pressure parameters of the twin-screw pumps are finely adjusted through the overflow valve 4.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (3)
1. A double-volume pump set comprises two identical double-screw pumps and is characterized in that each double-screw pump is provided with a valve block communicated with a high-pressure cavity, namely a first valve block and a second valve block, the upper end surfaces of the first valve block and the second valve block are provided with balance oil ports, balance oil pipes are arranged on the balance oil ports of the first valve block and the second valve block, and the balance oil pipes communicate the high-pressure cavities of the two double-screw pumps to form a balance pressure regulating oil path; an overflow valve is arranged on the first valve block or the second valve block; and a pressure relief pipeline is arranged on the first valve block or the second valve block provided with the overflow valve.
2. Double-volume pump group according to claim 1, characterised in that the pressure relief line is connected to the inlet of a twin-screw pump.
3. Double-volume pump group according to claim 1, characterised in that the pressure relief line connects the lubrication chambers of the twin-screw pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122620405.3U CN216008893U (en) | 2021-10-28 | 2021-10-28 | Double-volume type pump set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122620405.3U CN216008893U (en) | 2021-10-28 | 2021-10-28 | Double-volume type pump set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216008893U true CN216008893U (en) | 2022-03-11 |
Family
ID=80526427
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122620405.3U Active CN216008893U (en) | 2021-10-28 | 2021-10-28 | Double-volume type pump set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216008893U (en) |
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2021
- 2021-10-28 CN CN202122620405.3U patent/CN216008893U/en active Active
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