Novel hydraulic oil heater pipeline

Abstract

The utility model belongs to the technical field of hydraulic oil station equipment, and relates to a novel hydraulic oil heater pipeline which comprises a power oil station, an oil supply pipeline led out of one side of the power oil station is connected to an oil filter, a power pump is arranged on the oil supply pipeline, the oil filter is connected to an energy accumulator, and an oil conveying pipeline is led out of the energy accumulator. A circulating pipeline is led out from one side of the power oil station and connected to the oil cooler, a circulating pump is arranged on the circulating pipeline, the oil cooler is connected with the top of the power oil station through a return pipeline, an oil filter element is arranged on the return pipeline, and an oil heater is arranged at the top of the power oil station and comprises a tubular heater. Circulating heating, accurate temperature control and multiple filtering of hydraulic oil are achieved, heat exchange efficiency is improved, space is saved, the circulating pipeline is linked with the oil cooler, complex working condition requirements are met, the overall structure is compact, maintenance is convenient, stability of a hydraulic system is remarkably improved, and the service life of the hydraulic system is remarkably prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of hydraulic oil station equipment, specifically relating to a novel hydraulic oil heater pipeline. Background Technology

[0002] Ironworks require various hydraulic oil stations in their production processes. These stations need periodic maintenance and upkeep after a period of use, including regular replacement or inspection of the hydraulic oil heaters. In hydraulic systems, the ideal operating temperature for the hydraulic fluid is generally between 20 and 60°C. If the temperature is too low, the hydraulic pump will have difficulty drawing oil, leading to a decrease in the accuracy of the unit's hydraulic control system. To control the oil temperature, oil tanks are often equipped with heaters, which are put into operation when the oil temperature is low to maintain a suitable level.

[0003] Electric heaters are the most widely used type of heater in hydraulic systems. Currently, they are typically installed horizontally inside the oil tank, with the heating element completely immersed in the oil to ensure uniform heating through natural convection. During use, it is crucial to prevent oil from seeping into the heater and to ensure the heating element remains above the oil surface. The following problems exist during use:

[0004] 1. The heater conducts heat within the casing, and it takes 81 minutes for the oil temperature to rise by 5°C, resulting in energy waste.

[0005] 2. If the heater is not properly sealed, the electrical control components are prone to burnout;

[0006] 3. The heater is located at the bottom of the oil tank. Whenever the heater malfunctions, the oil tank must be emptied for maintenance, resulting in a waste of oil.

[0007] 4. Online maintenance is not possible, and equipment operating parameters cannot be effectively guaranteed.

[0008] Therefore, a novel hydraulic oil heater pipeline is proposed. Utility Model Content

[0009] The purpose of this invention is to provide a novel hydraulic oil heater pipeline that solves the problems of the prior art.

[0010] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a novel hydraulic oil heater pipeline, including a power oil station. An oil supply pipeline is led out from one side of the power oil station and connected to an oil filter. A power pump is installed on the oil supply pipeline. The oil filter is connected to an accumulator. An oil delivery pipeline is led out from the accumulator. A circulation pipeline is led out from one side of the power oil station and connected to an oil cooler. A circulation pump is installed on the circulation pipeline. The oil cooler is connected to the top of the power oil station through a return pipeline. An oil filter element is installed on the return pipeline. An oil heater is installed on the top of the power oil station. The oil heater includes a shell-and-tube heater.

[0011] Preferably, the oil pipeline is provided with an axial flow stationary vane valve, a turbofan vane valve, a double-acting valve, a single-acting valve, and a quick-cut valve in sequence. Return oil pipelines are led out from the axial flow stationary vane valve, the turbofan vane valve, the double-acting valve, the single-acting valve, and the quick-cut valve to the top of the power station. A return oil filter element is provided on the return oil pipeline.

[0012] Preferably, the tubular heater is vertically installed inside the power station.

[0013] Preferably, the return oil filter element is located at the end of the collected return oil pipeline.

[0014] Preferably, the oil cooler is a shell-and-tube heat exchanger or a plate heat exchanger.

[0015] Preferably, the power pump has a connecting pipe leading out to the power oil station, the connecting pipe being connected to the circulation pipeline, and the accumulator has a return connecting pipe leading out to the power oil station.

[0016] Preferably, the return pipe is connected to the side or top of the power station.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. This utility model realizes hydraulic oil circulation heating, precise temperature control and multiple filtration, improves heat exchange efficiency and saves space. The circulation pipeline is linked with the oil cooler to meet the needs of complex working conditions. The overall structure is compact, easy to maintain, and significantly improves the stability and life of the hydraulic system.

[0019] 2. The heater of this utility model can be maintained online, shortening the time required for annual maintenance. It is installed vertically from the top of the oil tank, eliminating the need for a protective cover seal, thus eliminating the risk of electrical short circuits. It is in direct contact with the oil, enabling rapid heating and increased thermal efficiency. The oil temperature is guaranteed, facilitating precise unit adjustments and stabilizing blast furnace production. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a schematic diagram of the structure of a novel hydraulic oil heater pipeline according to one embodiment;

[0022] In the diagram above, 1. Power oil station, 2. Oil supply line, 3. Oil filter, 4. Power pump, 5. Accumulator, 6. Axial flow stationary vane valve, 7. Transparent stationary vane valve, 8. Double-acting valve, 9. Single-acting valve, 10. Quick-cut valve, 11. Return oil line, 12. Oil delivery line, 13. Circulation line, 14. Circulation pump, 15. Oil cooler, 16. Oil filter element, 17. Return oil filter element, 18. Oil heater, 19. Tube heater, 20. Return connection line, 21. Connecting line. Detailed Implementation

[0023] 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.

[0024] 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.

[0025] Example 1, as Figure 1 As shown, a novel hydraulic oil heater pipeline includes a power station 1. A supply pipeline 2 extends from one side of the power station 1 and connects to an oil filter 3. A power pump 4 is installed on the supply pipeline 2. The oil filter 3 is connected to an accumulator 5, and an oil delivery pipeline 12 extends from the accumulator 5. A circulation pipeline 13 extends from one side of the power station 1 and connects to an oil cooler 15. A circulation pump 14 is installed on the circulation pipeline 13. The oil cooler 15 is connected to the top of the power station 1 via a return pipeline. An oil filter element 16 is installed on the return pipeline. An oil heater 18, including a tubular heater 19, is installed on the top of the power station 1. The power station 1 serves as a hydraulic oil storage and temperature control center, integrating the tubular heater 19 at the top to achieve direct and efficient heating of the oil. The main oil circuit is power pump 4 → oil filter 3 → accumulator 5 → oil pipeline 12, which provides high-pressure oil to the hydraulic actuator. Accumulator 5 stabilizes the system pressure. The circulating (cooling / heating) oil circuit is circulating pump 14 → oil cooler 15 → oil filter element 16 → oil return to the top of the oil station. The oil is circulated independently and cooled by oil cooler 15 or precisely controlled by oil heater 18.

[0026] The specific design of the aforementioned key components will be discussed in detail below:

[0027] The oil pipeline 12 is sequentially equipped with an axial flow stationary vane valve 6, a transparent stationary vane valve 7, a double-acting valve 8, a single-acting valve 9, and a quick-cut valve 10. Return oil pipelines 11 extend from the axial flow stationary vane valve 6, transparent stationary vane valve 7, double-acting valve 8, single-acting valve 9, and quick-cut valve 10, connecting to the top of the power station 1. A return oil filter element 17 is installed on the return oil pipeline 11. The return oil filter element 17 is located at the end of the collected return oil pipeline 11. The oil flow is: each valve → return oil pipeline 11 → return oil filter element 17 → top of power station 1, recovering the oil after the valves have operated, and centrally filtering it through the end return oil filter element 17 to ensure cleanliness.

[0028] The tubular heater 19 is vertically installed inside the power oil station 1. The vertically positioned tubular heater 19 directly contacts the oil, increasing the heating rate and reducing energy consumption. The oil heater 18 is vertically installed at the top, allowing for quick online disassembly and shortening annual maintenance time. The main oil circuit and circulating oil circuit operate independently, and with dual-filter filtration, oil temperature stability is high. The accumulator 5 stabilizes the pressure, and the return pipeline 20 relieves pressure, ensuring safe operation.

[0029] The oil cooler 15 can be a shell-and-tube heat exchanger or a plate heat exchanger. Shell-and-tube heat exchangers are suitable for handling metal shavings and colloidal impurities common in hydraulic systems, preventing heat exchange failure due to contamination and withstanding pressure fluctuations in the accumulator 5. Plate heat exchangers offer highly efficient heat exchange, significantly shortening oil temperature regulation time, and, in conjunction with the circulating pump 14, provide rapid cooling. Their compact structure facilitates integrated installation next to the power station 1. The choice depends on requirements; for those prioritizing reliability, shell-and-tube heat exchangers are preferred; for those seeking energy efficiency and space optimization, plate heat exchangers are the better option.

[0030] A connecting pipe 21 is led out from the power pump 4 and connected to the power oil station 1. The connecting pipe 21 is connected to the circulation pipeline 13. A return connecting pipe 20 is led out from the accumulator 5 and connected to the power oil station 1. The connecting pipe 21 connects the outlet of the power pump 4 and the circulation pipeline 13, thereby enhancing the flow regulation capability.

[0031] The return pipe 20 is connected to the side or top of the power station 1. The return pipe 20 directly connects the accumulator 5 back to the power station 1 for emergency pressure relief or system pressure stabilization, reducing valve load. This design solves the problem of hydraulic oil temperature control, and is particularly suitable for continuous production scenarios such as blast furnace hydraulic systems, significantly improving equipment lifespan and production stability.

[0032] 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.

[0033] 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. A novel hydraulic oil heater pipeline, comprising a power oil station, characterized in that, The power station has an oil supply pipeline leading out from one side, which connects to the oil filter. A power pump is installed on the oil supply pipeline. The oil filter is connected to the accumulator. An oil delivery pipeline leads out from the accumulator. A circulation pipeline leading out from one side of the power station connects to the oil cooler. A circulation pump is installed on the circulation pipeline. The oil cooler is connected to the top of the power station via a return pipeline. An oil filter element is installed on the return pipeline. An oil heater, including a shell-and-tube heater, is installed on the top of the power station.

2. The novel hydraulic oil heater pipeline according to claim 1, characterized in that, The oil pipeline is sequentially equipped with an axial flow stationary vane valve, a turbofan vane valve, a double-acting valve, a single-acting valve, and a quick-cut valve. Return oil pipelines are led out from the axial flow stationary vane valve, turbofan vane valve, double-acting valve, single-acting valve, and quick-cut valve to connect to the top of the power station. Return oil filter elements are installed on the return oil pipelines.

3. The novel hydraulic oil heater pipeline according to claim 1, characterized in that, The tubular heater is vertically installed inside the power station.

4. A novel hydraulic oil heater pipeline according to claim 2, characterized in that, The return oil filter element is installed at the end of the collected return oil pipeline.

5. A novel hydraulic oil heater pipeline according to claim 1, characterized in that, The oil cooler is a shell-and-tube heat exchanger or a plate heat exchanger.

6. The novel hydraulic oil heater pipeline according to claim 1, characterized in that, The power pump has a connecting pipe that connects to the power oil station, and the connecting pipe is connected to the circulation pipeline. The accumulator has a return connecting pipe that connects to the power oil station.

7. A novel hydraulic oil heater pipeline according to claim 6, characterized in that, The return pipe is connected to the side or top of the power station.

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