CN204646870U - A kind of closed system concentrates recharging oil device - Google Patents
A kind of closed system concentrates recharging oil device Download PDFInfo
- Publication number
- CN204646870U CN204646870U CN201520145275.4U CN201520145275U CN204646870U CN 204646870 U CN204646870 U CN 204646870U CN 201520145275 U CN201520145275 U CN 201520145275U CN 204646870 U CN204646870 U CN 204646870U
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- China
- Prior art keywords
- high pressure
- pressure filter
- pump
- gear pump
- closed system
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- Expired - Fee Related
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Abstract
The utility model relates to a kind of closed system and concentrates recharging oil device, be four enclosed pump repairings not with service pump by a gear pump and a high pressure filter, comprise high pressure filter, gear pump, damping hole, gear pump is connected with high pressure filter, high pressure filter is connected with the repairing mouth of four enclosed pumps by four road pipelines, each pipeline is all connected with a damping hole.The utility model has the advantages that: high pressure filter becomes one by four, four independent auxiliary slippage pumps have made the gear pump of a huge discharge into, not only reduce the quantity of high pressure filter, the installation quantity of the pipeline also reduced; And the weight of car load, cost also reduce to some extent.
Description
Technical field
The utility model relates to a kind of closed system and concentrates recharging oil device.
Background technique
Closed system in current fracturing blender truck hydraulic system has 4, and each closed system carries slippage pump, see Fig. 1, its repairing form is the pressure oil of slippage pump is entered into enclosed pump through high pressure filter repairing mouth F by hydraulic fluid port V, and therefore price is relatively expensive.In addition, this enclosed pump is generally repairing force feed and filters, each enclosed pump needs installation high-voltage filter, the pipeline that enclosed pump connects is caused to reach many six roots of sensation (A mouth, B mouth, drain tap, repairing import, repairing outlet, inlet port), pipeline gets up lengthy and tedious from the appearance, unsightly, and cost also larger.
Summary of the invention
For overcoming the deficiencies in the prior art, the purpose of this utility model is to provide a kind of closed system and concentrates recharging oil device, reduces high pressure filter, reduces pipeline and installs quantity, reduce costs.
For achieving the above object, the utility model is achieved through the following technical solutions:
A kind of closed system concentrates recharging oil device, be four enclosed pump repairings not with service pump by a gear pump and a high pressure filter, comprise high pressure filter, gear pump, damping hole, gear pump is connected with high pressure filter, high pressure filter is connected with the repairing mouth of four enclosed pumps by four road pipelines, each pipeline is all connected with a damping hole.
Described high pressure filter is connected with relief valve.
Described damping hole is thin-wall hole.
Compared with prior art, the beneficial effects of the utility model are:
High pressure filter becomes one by four, and four independent auxiliary slippage pumps have made the gear pump of a huge discharge into, not only reduce the quantity of high pressure filter, the installation quantity of the pipeline also reduced; And the weight of car load, cost also reduce to some extent.
Accompanying drawing explanation
Fig. 1 is an original closed system structural representation.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is repairing part-structure schematic diagram.
In figure: 1-former high pressure filter 2-slippage pump 3-gear pump 4-high pressure filter 5-relief valve 6-damping hole one 7-damping hole two 8-damping hole three 9-damping hole four
Embodiment
Below in conjunction with Figure of description, the utility model is described in detail, but it should be noted that enforcement of the present utility model is not limited to following mode of execution.
See Fig. 2, Fig. 3, a kind of closed system concentrates recharging oil device, be four enclosed pump repairings not with service pump by the gear pump 3 of a huge discharge and a high pressure filter 4, comprise high pressure filter 4, gear pump 3, damping hole, gear pump 3 is connected with high pressure filter 4, high pressure filter 4 is connected with the repairing mouth (F1-F4) of four enclosed pumps by four road pipelines, each pipeline is all connected with a damping hole.
Wherein, high pressure filter 4 is connected with relief valve 5.Damping hole is thin-wall hole.
Repairing amount can according to formula:
calculate;
In formula: K is constant (flow coefficient is tabled look-up and can be obtained); A is damping hole area; Δ p is the front and back pressure reduction through damping hole; ρ is the density of fluid.
Above-mentioned formula shows, when pressure reduction is constant, by changing the size A of damping hole area, can regulate the flow of Q, and then ensures that the repairing amount of each closed system is appropriate and stable.
The pressure oil concentrating the huge discharge gear pump 3 in repairing part to discharge arrives damping hole one 6 ~ damping hole 49 after high pressure filter for molten, pressure oil is by the shunting of these four damping holes, appropriate pressure oil is injected into respectively these jointings of repairing mouth F1 ~ F 4 of enclosed pump, and then enter into enclosed pump one ~ enclosed pump four, thus realize enclosed pump repairing work.Achieve the repairing amount controlling to be injected in enclosed pump.So, four enclosed pumps also just can run normally, there will not be problem.
Claims (3)
1. a closed system concentrates recharging oil device, it is characterized in that, be four enclosed pump repairings not with service pump by a gear pump and a high pressure filter, comprise high pressure filter, gear pump, damping hole, gear pump is connected with high pressure filter, high pressure filter is connected with the repairing mouth of four enclosed pumps by four road pipelines, each pipeline is all connected with a damping hole.
2. a kind of closed system according to claim 1 concentrates recharging oil device, it is characterized in that, described high pressure filter is connected with relief valve.
3. a kind of closed system according to claim 1 concentrates recharging oil device, it is characterized in that, described damping hole is thin-wall hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145275.4U CN204646870U (en) | 2015-03-13 | 2015-03-13 | A kind of closed system concentrates recharging oil device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520145275.4U CN204646870U (en) | 2015-03-13 | 2015-03-13 | A kind of closed system concentrates recharging oil device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646870U true CN204646870U (en) | 2015-09-16 |
Family
ID=54099629
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520145275.4U Expired - Fee Related CN204646870U (en) | 2015-03-13 | 2015-03-13 | A kind of closed system concentrates recharging oil device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646870U (en) |
-
2015
- 2015-03-13 CN CN201520145275.4U patent/CN204646870U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 Termination date: 20180313 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |