CN214499642U - Multistage cooling hydraulic system - Google Patents
Multistage cooling hydraulic system Download PDFInfo
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- CN214499642U CN214499642U CN202120582325.0U CN202120582325U CN214499642U CN 214499642 U CN214499642 U CN 214499642U CN 202120582325 U CN202120582325 U CN 202120582325U CN 214499642 U CN214499642 U CN 214499642U
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Abstract
The utility model relates to the technical field of hydraulic systems, in particular to a multi-stage cooling hydraulic system which has good cooling effect and improves the cleanness of hydraulic oil; the hydraulic oil tank is through hydraulic pump and motor with hydraulic oil pump income execute component, and the execute component front end sets up the switching-over valve, and hydraulic oil returns hydraulic oil tank through hydraulic oil return filter and heat exchanger, set up the subregion in the hydraulic oil tank and cut off, the subregion cuts off and divide into two regions of hydraulic oil workspace and hydraulic oil settling zone with hydraulic oil tank, and hydraulic pump and motor are with the hydraulic oil pump income hydraulic line in the hydraulic oil workspace, and the hydraulic line initiating terminal is provided with the check valve, connects the draining pipeline between hydraulic line and the hydraulic oil settling zone, be equipped with the overflow valve on the draining pipeline, the hydraulic line is located be provided with hydraulic oil export filter between check valve and the switching-over valve, hydraulic oil gets into the hydraulic oil settling zone through multistage cooler behind the hydraulic oil return filter.
Description
Technical Field
The utility model relates to a hydraulic system's technical field especially relates to a multistage refrigerated hydraulic system.
Background
In the existing hydraulic system, only an oil return filtering device exists, and the cleanness degree of hydraulic oil flowing into an execution element cannot be completely guaranteed; in the existing hydraulic system, if the hydraulic system works in a high-temperature environment for a long time, the problems of single cooling system and poor cooling effect exist, so that the temperature of hydraulic oil is increased, the viscosity is reduced, and part of hydraulic components leak oil; the existing cooling mode mainly adopts the principle of a heat exchanger, the heat exchange area of cooling water and hydraulic oil is small, the heat exchange time is short, and the oil temperature is not easy to reduce; in addition, the hydraulic oil of the existing hydraulic system cannot be fully exhausted and precipitated; and the pressure difference between the main water inlet pipeline and the main water drainage pipeline is small, so that cooling water in the cooler is easy to not flow, and the cooling effect of hydraulic oil is poor.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems, the utility model provides a multistage cooling hydraulic system with good cooling effect and improved hydraulic oil cleanness, which divides a hydraulic oil tank into a hydraulic oil working area and a hydraulic oil settling area, and hydraulic oil can be fully exhausted and settled and then enters the working area; the multi-stage cooler is designed, so that the heat exchange area of cooling water and hydraulic oil is increased under the condition that the volume of the cooler is not increased, the heat exchange time is prolonged, and the oil temperature is effectively reduced.
In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:
the utility model discloses a multistage refrigerated hydraulic system, hydraulic tank go into the execute component with hydraulic oil pump through hydraulic pump and motor, and the execute component front end sets up the switching-over valve, and hydraulic oil returns hydraulic tank through hydraulic oil return filter and heat exchanger, set up the subregion in the hydraulic tank and cut off, the subregion cuts off and divide into two regions of hydraulic oil workspace and hydraulic oil settling zone with hydraulic oil tank, and hydraulic pump and motor go into the hydraulic line with the hydraulic oil pump in the hydraulic oil workspace, and hydraulic line initiating terminal is provided with the check valve, connects the draining pipeline between hydraulic line and the hydraulic oil settling zone, be equipped with the overflow valve on the draining pipeline, the hydraulic line is located be provided with hydraulic oil export filter between check valve and the switching-over valve, hydraulic oil gets into the hydraulic oil settling zone through multistage cooler behind the hydraulic oil return filter.
Furthermore, the multistage cooler comprises a cooling water pipeline and a hydraulic oil pipeline, wherein the hydraulic oil pipeline is partially or completely surrounded by the cooling water pipeline, and the cooling water pipeline is of a multistage bending structure.
Furthermore, the cooling water pipeline comprises three parallel pipelines, adjacent parallel pipelines are connected by adopting a vertical connecting pipe, wherein the parallel pipeline at one end is provided with a cooling water inlet, and the parallel pipeline at the other end is provided with a cooling water outlet; and two ends of each parallel pipeline are respectively provided with a flange plate, and the hydraulic oil pipeline is connected with the parallel pipelines through the flange plates.
Furthermore, a plurality of branch pipelines are arranged at the part of the hydraulic oil pipeline, which is positioned in the parallel pipelines, and the part of the hydraulic oil pipeline, which is connected between the adjacent parallel pipelines, is a hose.
Furthermore, the positions where the hydraulic oil pipeline is connected with the flange plate are provided with reducing joints.
Furthermore, the outer end of the cooling water pipeline, which is positioned at the cooling water outlet, is provided with a circulating water pump.
Compared with the prior art, the beneficial effects of the utility model are that: the hydraulic oil tank is divided into a hydraulic oil working area and a hydraulic oil settling area by the partition walls, after the hydraulic oil returns, the hydraulic oil firstly enters the settling area to settle tiny impurities in the hydraulic oil, gas in the hydraulic oil is removed, then the hydraulic oil flows into the working area to work, a hydraulic oil outlet filter is arranged on a hydraulic pipeline, the hydraulic oil further enters the execution element after being filtered, and the cleaning degree of the hydraulic oil flowing into the execution element is guaranteed; the multistage cooler increases the heat transfer area of cooling water and hydraulic oil under the condition of not increasing the volume of cooler, prolongs heat transfer time, and the cooling effect can promote, effectively reduces the oil temperature.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic diagram of a multi-stage chiller;
reference numerals: 1-a hydraulic oil tank; 11-hydraulic oil working area; 12-a hydraulic oil settling zone; 13-liquid level display meter; 14-a liquid level switch; 15-a temperature sensor; 2-a hydraulic pump; 3-an actuator; 4-a reversing valve; 5-hydraulic oil return filter; 6-partition and partition; 7-a one-way valve; 8-relief valves; 9-hydraulic oil outlet filter; 10-a multi-stage cooler; 101-a cooling water pipeline; 1011-parallel pipes; 1012-take over; 102-hydraulic oil piping; 1021-piping; 1022-a reducer union; 103-flange plate; 104-circulating water pump.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
As shown in fig. 1, in the multi-stage cooling hydraulic system of the embodiment of the present invention, a hydraulic oil tank 1 pumps hydraulic oil into an execution element 3 through a hydraulic pump 2, a reversing valve 4 is arranged at the front end of the execution element 3, the hydraulic oil returns to the hydraulic oil tank 1 through a hydraulic oil return filter 5 and a heat exchanger, a partition wall 6 is arranged in the hydraulic oil tank 1, and the partition wall 6 divides the hydraulic oil tank 1 into two regions, namely a hydraulic oil working region 11 and a hydraulic oil settling region 12; a liquid level display meter 13, a liquid level switch 14 and a temperature sensor 15 are arranged in the hydraulic oil tank 1, and an oil discharge port is arranged at one side of the hydraulic oil tank 1, the installation method and the function are the prior art, and the application is not explained; the hydraulic pump is with the hydraulic pressure pump pumping hydraulic line of the hydraulic oil work area 11 in, the hydraulic line initiating terminal is provided with check valve 7, connect the draining pipeline between hydraulic line and the hydraulic oil settling zone 12, be equipped with overflow valve 8 on the draining pipeline, the hydraulic line is located and is provided with hydraulic oil outlet filter 9 between check valve 7 and the switching-over valve 4, hydraulic oil gets into hydraulic oil settling zone 12 through multistage cooler 10 behind hydraulic oil return filter 5.
The utility model discloses a partition cuts off and divide into hydraulic oil tank hydraulic oil workspace and hydraulic oil settling zone two regions, and the hydraulic oil first enters the settling zone after the oil return and deposits the tiny impurity wherein to get rid of the gas in the hydraulic oil, then flow into the workspace, just can work, hydraulic pressure pipeline sets up hydraulic oil export filter, further gets into the execute component after filtering hydraulic oil, ensures the clean degree of hydraulic oil that flows into execute component; the multistage cooler increases the heat transfer area of cooling water and hydraulic oil under the condition of not increasing the volume of cooler, prolongs heat transfer time, and the cooling effect can promote, effectively reduces the oil temperature.
In this embodiment, as shown in fig. 2, the multi-stage cooler 10 includes a cooling water pipeline 101 and a hydraulic oil pipeline 102, the cooling water pipeline 101 includes three parallel pipelines 1011, adjacent parallel pipelines 1011 are connected by a vertical connecting pipe 1012, wherein the parallel pipeline 1011 at one end is provided with a cooling water inlet, and the parallel pipeline 1011 at the other end is provided with a cooling water outlet; two ends of each parallel pipeline 1011 are respectively provided with a flange plate 103, and the hydraulic oil pipeline 102 is connected with the parallel pipelines 1011 through the flange plates 103; the connection part of the hydraulic oil pipeline 102 and the parallel pipeline 1011 on the front side is a hydraulic oil inlet, a plurality of branch pipelines 1021 are arranged on the part, located in the parallel pipeline 1011, of the hydraulic oil pipeline 102 after penetrating through the flange plate 103, the part, collected after penetrating through the flange plate 103, of the branch pipelines 1021 is set as a hose, the other end of the hose is connected with the flange plate 103 at the left end of the parallel pipeline 1011 in the middle, and the process is circulated until the hydraulic oil pipeline 102 penetrates through the flange plate 103 of the third parallel pipeline 1011 to form a hydraulic oil outlet; the specific arrangement of three-stage cooling is provided in the embodiment, wherein the cooling water pipeline and the hydraulic oil pipeline can be designed into other multi-stage bent structures, and the bent structures increase the heat exchange area of cooling water and hydraulic oil under the condition of not increasing the volume of a cooler, prolong the heat exchange time, improve the cooling effect and effectively reduce the oil temperature; the positions where the hydraulic oil pipeline 102 is connected with the flange plate 103 are provided with the reducing joints 1022, the reducing joints can play a role in buffering when the hydraulic oil pipeline is shunted or converged, and damage caused by instant increase of the internal pressure of the hydraulic oil pipeline is avoided; the outer end of the cooling water pipeline 101, which is positioned at the cooling water outlet, is provided with a circulating water pump 104, so that the pressure difference between water inlet and water discharge is increased, the cooling water flows sufficiently, and the oil temperature is further reduced.
The utility model discloses multistage refrigerated hydraulic system, it is at the during operation, hydraulic pump in with hydraulic oil workspace 11 pumps hydraulic pressure pipeline, hydraulic oil gets into executive component 3 through check valve 7 and hydraulic oil export filter 9, later carry out multistage cooling through hydraulic oil return filter 5 and multistage cooler 10, hydraulic oil gets into hydraulic oil pipeline 102 from the hydraulic oil entry, the cooling through a plurality of minutes pipeline 1021 is effectively cooled down, later through hydraulic oil export recoverable hydraulic oil settling zone 12, hydraulic oil settling zone 12 deposits the small impurity in the hydraulic oil, and get rid of the gas in the hydraulic oil, then flow in hydraulic oil workspace 11, so cyclic use.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.
Claims (6)
1. The utility model provides a multistage refrigerated hydraulic system, hydraulic tank (1) is through hydraulic pump (2) with hydraulic oil pump pumping execute component (3), execute component (3) front end sets up switching-over valve (4), hydraulic oil returns hydraulic tank (1) through hydraulic oil return filter (5) and heat exchanger, a serial communication port, set up subregion wall (6) in hydraulic tank (1), subregion wall (6) divide into two regions of hydraulic oil workspace (11) and hydraulic oil settling zone (12) with hydraulic oil tank (1), the hydraulic pump pumps the hydraulic oil pump in hydraulic oil workspace (11) into hydraulic line, the hydraulic line initiating terminal is provided with check valve (7), connect the draining pipeline between hydraulic line and hydraulic oil settling zone (12), be equipped with overflow valve (8) on the draining pipeline, the hydraulic line is located be provided with hydraulic oil export filter (9) between check valve (7) and switching-over valve (4), the hydraulic oil enters a hydraulic oil settling area (12) through a multistage cooler (10) after passing through a hydraulic oil return filter (5).
2. The multistage cooled hydraulic system according to claim 1, characterized in that the multistage cooler (10) comprises a cooling water conduit (101) and a hydraulic oil conduit (102), the hydraulic oil conduit (102) being partly or completely surrounded by the cooling water conduit (101), the cooling water conduit (101) being of a multistage bent construction.
3. The multistage cooling hydraulic system according to claim 2, wherein the cooling water pipeline (101) comprises three parallel pipelines (1011), adjacent parallel pipelines (1011) are connected by a vertical connecting pipe (1012), the parallel pipeline (1011) at one end is provided with a cooling water inlet, and the parallel pipeline (1011) at the other end is provided with a cooling water outlet; two ends of each parallel pipeline (1011) are respectively provided with a flange plate (103), and the hydraulic oil pipeline (102) is connected with the parallel pipelines (1011) through the flange plates (103).
4. The multistage cooled hydraulic system according to claim 3, characterized in that the part of the hydraulic oil pipe (102) inside the parallel pipes (1011) is provided with a plurality of branch pipes (1021), and the part of the hydraulic oil pipe connecting the adjacent parallel pipes (1011) is provided as a hose.
5. The multistage cooled hydraulic system according to claim 4, characterized in that the hydraulic oil pipe (102) is provided with a reducer union (1022) at the connection position with the flange (103).
6. Multistage cooled hydraulic system according to claim 5, characterised in that the cooling water pipe (101) is provided with a circulating water pump (104) at the outer end of the cooling water outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582325.0U CN214499642U (en) | 2021-03-22 | 2021-03-22 | Multistage cooling hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120582325.0U CN214499642U (en) | 2021-03-22 | 2021-03-22 | Multistage cooling hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499642U true CN214499642U (en) | 2021-10-26 |
Family
ID=78199678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120582325.0U Active CN214499642U (en) | 2021-03-22 | 2021-03-22 | Multistage cooling hydraulic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499642U (en) |
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2021
- 2021-03-22 CN CN202120582325.0U patent/CN214499642U/en active Active
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