Integrated power oil temperature control direct cooling device

Abstract

The utility model belongs to the technical field of hydraulic oil cooling systems, and relates to an integrated power oil temperature control direct cooling device which comprises a hydraulic oil station, a cold oil pipeline is arranged on one side of the hydraulic oil station, a cold oil valve, a circulating pump and an oil cooler are sequentially arranged on the cold oil pipeline, and the cold oil pipeline is connected to the top of the hydraulic oil station. An oil filtering pipeline is arranged on one side of the bottom of the hydraulic oil station, an oil filtering valve, a hydraulic oil pump and an oil filter are sequentially arranged on the oil filtering pipeline, the oil filtering pipeline is connected to an energy accumulator, a leading-out pipeline is arranged on the energy accumulator, a backflow pipeline is led out of the front side of the oil filter on the oil filtering pipeline, and the backflow pipeline is connected to the front side of an oil cooler on an oil cooling pipeline. A direct connection pipeline is led out of the front side of the backflow valve on the backflow pipeline and connected to a hydraulic oil station. According to the utility model, an oil path is transformed, the electric energy consumption is reduced, the economical efficiency is improved, oil can directly enter the cooler for heat exchange by optimizing the oil pipe connection mode, the operation process is simplified, and the cooling efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to hydraulic oil cooling system technical field, concretely relates to an integrated power oil temperature control direct cooling device. BACKGROUND

[0002] In industrial production lines, many devices need hydraulic oil to drive and lubricate, and the hydraulic oil cooling system can ensure the stable operation of these devices in high-temperature and high-load working environments, avoiding equipment failure and downtime caused by high oil temperature.

[0003] In the normal operation of the current hydraulic oil cooling system, hydraulic oil flows in two ways from the pump head: one directly returns to the oil tank, and this part of the oil does not go through the cooling process and directly flows back to the oil tank; the other enters the oil circuit system, and this part of the oil is sent to the cooler for cooling when needed. When the oil temperature rises to the required cooling temperature, the circulating pump will be started. The working mode of the circulating pump is as follows: the oil is pumped out from the oil tank, exchanges heat in the cooler, and then the cooled oil flows back to the oil tank. The existing hydraulic oil cooling system has the following problems:

[0004] 1. Single cooling method increases energy consumption: the current hydraulic oil cooling method mainly relies on starting the circulating pump for cooling, and the circulating pump must be started during cooling, thereby increasing the power consumption of the plant;

[0005] 2. Poor cooling effect in summer: in summer, even if the cooling water inlet and outlet valve is fully open, the temperature of the hydraulic oil cannot be effectively cooled without starting the circulating pump, and the cooling demand cannot be fully met;

[0006] 3. Low efficiency: since the circulating pump is needed for cooling, and the operation of the circulating pump increases energy consumption, the efficiency of the entire hydraulic oil cooling system is reduced. In the case where no additional cooling is needed, the circulating pump still needs to be in standby or running state to deal with the possible rise in oil temperature, which further reduces the overall efficiency of the system. INVENTION CONTENTS

[0007] The utility model aims to provide an integrated power oil temperature control direct cooling device, which has the integrated power oil temperature control direct cooling function, and solves the problem of relying on starting the circulating pump for cooling and starting the circulating pump during cooling in the prior art.

[0008] In order to achieve the above object, the utility model adopts the technical scheme, the utility model provides an integrated power oil temperature control direct cooling device, including hydraulic oil station, one side of hydraulic oil station is provided with cold oil pipeline, cold oil pipeline is provided with cold oil valve, circulating pump and cold oiler in proper order, cold oil pipeline is connected back to the top of hydraulic oil station, one side of hydraulic oil station bottom is provided with filter oil pipeline, filter oil pipeline is provided with filter oil valve, hydraulic oil pump and filter oiler in proper order, filter oil pipeline is connected to energy accumulator, the energy accumulator is provided with lead-out pipeline, the front side of filter oiler of filter oil pipeline leads out return pipeline, return pipeline is connected to the front side of cold oiler of cold oil pipeline.

[0009] As preferred, the cold oiler inside adopts double-row parallel pipeline structure, containing first cold oiler branch and second cold oiler branch, and each branch is independently provided with a cold oiler body.

[0010] As preferred, the filter oiler inside adopts double-row parallel pipeline structure, containing first filter oiler branch and second filter oiler branch, and each branch is independently provided with a filter oiler body.

[0011] As preferred, the filter oil valve adopts double-valve parallel structure, containing first filter oil valve and second filter oil valve arranged in parallel, the inlet ends of the first filter oil valve and the second filter oil valve are commonly connected to the bottom outlet of the hydraulic oil station, and the rear sides are respectively connected to independent hydraulic oil pumps.

[0012] As preferred, the hydraulic oil pump is correspondingly provided as double-pump parallel structure, containing a first hydraulic oil pump connected in series with the first filter oil valve, a second hydraulic oil pump connected in series with the second filter oil valve, and the rear sides are connected in parallel to the filter oiler.

[0013] As preferred, the return pipeline is provided with a return valve, and a direct connection pipeline is led out from the front side of the return valve and connected to the hydraulic oil station, and a direct connection valve is arranged on the direct connection pipeline.

[0014] Compared with the prior art, the utility model has the advantages and positive effects that,

[0015] 1、The utility model improves the economy by reducing the power consumption through the oil circuit transformation, simplifies the operation process and improves the cooling efficiency by optimizing the oil pipe connection mode, so that the oil can directly enter the cooler for heat exchange.

[0016] 2、The utility model has integrated power oil temperature control direct cooling function, solves the problem that the existing technology depends on the start of circulating pump for cooling, and the circulating pump must be started during cooling. BRIEF DESCRIPTION OF DRAWINGS

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of an integrated power oil temperature control direct cooling device according to one embodiment;

[0019] In the diagram above, 1. Hydraulic oil station, 2. Cold oil pipeline, 3. Cold oil valve, 4. Circulating pump, 5. Oil cooler, 6. Oil filter pipeline, 7. Oil filter valve, 8. Hydraulic oil pump, 9. Oil filter, 10. Accumulator, 11. Outlet pipeline, 12. Return pipeline, 13. Return valve, 14. Direct connection pipeline, 15. Direct connection valve. Detailed Implementation

[0020] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0021] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0022] Example 1, as Figure 1 As shown, an integrated power oil temperature control and direct cooling device includes a hydraulic oil station 1, which serves as an oil storage unit, providing storage, sedimentation, and preliminary heat dissipation functions for hydraulic oil. A cold oil pipe 2 is installed on one side of the hydraulic oil station 1. A cold oil valve 3, a circulation pump 4, and an oil cooler 5 are sequentially installed on the cold oil pipe 2. The oil cooler 5 lowers the oil temperature through heat exchange, the circulation pump 4 provides circulation power, the cold oil valve 3 controls the opening and closing of the cold oil pipe 2, and the cold oil pipe 2 returns to the top of the hydraulic oil station 1. The cold oil pipe 2 forms the main cooling circulation channel, returning to the top of the hydraulic oil station 1 after completing oil cooling.

[0023] The bottom side of the hydraulic oil station 1 is provided with an oil filtering pipeline 6, the oil filtering pipeline 6 is sequentially provided with an oil filtering valve 7, a hydraulic oil pump 8 and an oil filter 9, the oil filter 9 filters the particulate impurities in the oil, the hydraulic oil pump 8 provides conveying power, the oil filtering valve 7 controls the opening and closing of the oil filtering pipeline 6, and the oil filtering pipeline 6 is connected to an energy accumulator 10, the oil filtering pipeline 6 is responsible for conveying the filtered oil to the energy accumulator 10, and the filtered flow is adjusted. The energy accumulator 10 is provided with a lead-out pipeline 11, the energy accumulator 10 stores the filtered high-pressure oil, and the lead-out pipeline 11 is used to supply oil to external equipment, so as to suppress the pressure fluctuation of the system, avoid frequent start and stop of the hydraulic oil pump 8 and prolong the service life of the equipment.

[0024] The oil filtering pipeline 6 is provided with a backflow pipeline 12 on the front side of the oil filter 9, the backflow pipeline 12 is connected to the front side of the oil cooling pipeline 2, and the backflow pipeline 12 guides part of the oil before entering the oil filter 9 to the front side of the oil cooling pipeline 2 to form a cooling bypass.

[0025] The specific design of the key components will be described below.

[0026] The oil cooler 5 is internally provided with a double-row parallel pipeline structure, including a first oil cooler branch and a second oil cooler branch, and each branch is independently provided with an oil cooler body. The oil cooler body can be a plate heat exchanger or a tube-shell heat exchanger, the second oil cooler branch is designed symmetrically with the first oil cooler branch, the oil cooler bodies have the same specifications, and the branches are connected in parallel through a Y-shaped branch divider. When the double branches are simultaneously opened in summer, the heat dissipation area is doubled, and the problem of insufficient cooling in summer is solved. The single branch can be isolated for maintenance, and the system does not need to be shut down.

[0027] The oil filter 9 is internally provided with a double-row parallel pipeline structure, including a first oil filter branch and a second oil filter branch, and each branch is independently provided with an oil filter body. The oil filter body can be a high-pressure filter element group, the second oil filter branch is symmetric with the first oil filter branch, the filter elements have the same precision, and the branches are connected in parallel through a T-shaped tee joint. The double-branch parallel connection reduces the load of a single filter element, prolongs the replacement cycle and meets the demand of large-flow working conditions.

[0028] The oil filtering valve 7 adopts a double-valve parallel structure, including a first oil filtering valve and a second oil filtering valve arranged in parallel, the inlet ends of the first oil filtering valve and the second oil filtering valve are connected to the bottom outlet of the hydraulic oil station 1, and the rear sides are respectively connected to independent hydraulic oil pumps 8. The hydraulic oil pump 8 is correspondingly provided as a double-pump parallel structure, including a first hydraulic oil pump connected in series with the first oil filtering valve and a second hydraulic oil pump connected in series with the second oil filtering valve, and the rear sides are connected in parallel to the oil filter 9. In the low-load mode, only the first oil filtering valve is opened, the second oil filtering valve is closed, and the single-pump operation reduces energy consumption; in the high-load mode, the double valves are synchronously opened, the double pumps are connected in parallel to output, and the flow is superimposed to meet the peak demand. When a single valve fails, the other valve is urgently fully opened, and the single pump maintains the minimum flow demand.

[0029] A return valve 13 is installed on the return pipe 12. A direct connecting pipe 14 leads out from the front of the return valve 13 and connects to the hydraulic oil station 1. A direct connecting valve 15 is installed on the direct connecting pipe 14, which controls the opening and closing of the direct connecting pipe 14. The direct connecting pipe 14 directly guides excess oil that does not need cooling back to the hydraulic oil station 1. In low-temperature mode, the return valve 13 is closed, and the oil returns quickly through the direct connecting pipe 14, reducing the running time of the circulating pump 4. In high-temperature mode, the return valve 13 is opened, and the oil is cooled by the oil cooler 5, enhancing the cooling capacity and avoiding continuous operation of the circulating pump 4, which is only started when needed.

[0030] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. An integrated power oil temperature controlled direct cooling device, characterized by, The hydraulic oil station is provided with a cold oil pipeline on one side, the cold oil pipeline is sequentially provided with a cold oil valve, a circulating pump and a cold oil device, the cold oil pipeline is connected to the top of the hydraulic oil station, the hydraulic oil station is provided with a filter oil pipeline on one side at the bottom, the filter oil pipeline is sequentially provided with a filter oil valve, a hydraulic oil pump and a filter oil device, the filter oil pipeline is connected to an accumulator, the accumulator is provided with a leading pipeline, the filter oil pipeline is provided with a backflow pipeline on the front side of the filter oil device, and the backflow pipeline is connected to the front side of the cold oil device on the cold oil pipeline.

2. An integrated power oil temperature control direct cooling device according to claim 1, characterized in that, The cold oil device is internally provided with a double-row parallel pipeline structure, and contains a first cold oil device branch and a second cold oil device branch.

3. An integrated power oil temperature control direct cooling device according to claim 1, characterized in that, The filter oil device is internally provided with a double-row parallel pipeline structure, and contains a first filter oil device branch and a second filter oil device branch.

4. The integrated power oil temperature control direct cooling device of claim 1, wherein, The filter oil valve is provided with a double-valve parallel structure, and contains a first filter oil valve and a second filter oil valve which are arranged in parallel.

5. An integrated power oil temperature control direct cooling device according to claim 4, characterized in that, The hydraulic oil pump is correspondingly provided with a double-pump parallel structure, contains a first hydraulic oil pump connected in series with the first filter oil valve and a second hydraulic oil pump connected in series with the second filter oil valve, and the rear sides are connected to the filter oil device in parallel.

6. An integrated power oil temperature control direct cooling device according to claim 1, wherein, The backflow pipeline is provided with a backflow valve, the backflow pipeline is provided with a direct connection pipeline connected to the hydraulic oil station on the front side of the backflow valve, and the direct connection pipeline is provided with a direct connection valve.

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