Valve hydraulic station with cooling and filtering system

Abstract

The utility model relates to the technical field of valve hydraulic stations, and discloses a valve hydraulic station with a cooling and filtering system, which solves the problems in the background technology, and comprises a hydraulic station oil tank, a front pipeline, a rear pipeline, a cooling pipeline, a filtering pipeline and a signal processing unit, the output end of the hydraulic station oil tank is connected with the front pipeline, the front pipeline is connected to one end of the cooling pipeline and one end of the filtering pipeline in parallel, the other end of the cooling pipeline and the other end of the filtering pipeline are connected to the rear pipeline, and the rear pipeline is connected to the input end of the hydraulic station oil tank to form a loop. A temperature sensor and a liquid granularity sensor are connected with a circulating pump and an electromagnetic valve, an upper limit value and a lower limit value are set, switches of the circulating pump and the electromagnetic valve are automatically opened and closed through temperature change or pollution level change of hydraulic oil in an oil tank of a hydraulic station, and the temperature of the hydraulic oil and the pollution level of the oil are automatically controlled.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve hydraulic stations, in particular to a valve hydraulic station with a cooling and filtering system. Background Art

[0002] In many industrial and engineering applications, valves play a vital role in controlling the flow of fluids, regulating flow and isolating fluids. In order to ensure that valves can operate stably and efficiently, valve hydraulic stations have emerged. Valve hydraulic stations are a specially designed system that is mainly used to provide control oil pressure for the operation of valves to ensure accurate and reliable operation of valves. Through precise control, valve hydraulic stations can achieve precise control of valves to meet various process requirements and safety standards.

[0003] Under certain special working conditions, hydraulic valves need to be opened and closed frequently for a long time. The current valve hydraulic station will have the phenomenon of too high oil temperature. When the oil temperature exceeds a certain value, the oil viscosity drops significantly, the system leakage increases, and the rubber seals age faster. At the same time, frequent operations lead to an increase in large particles in the oil, which makes it easy for the hydraulic valve group to get stuck, seriously affecting the safe operation of the valve. For this reason, we proposed a valve hydraulic station with a cooling and filtration system. Utility Model Content

[0004] In order to solve the problem that the oil temperature in the current valve hydraulic station is too high, when the oil temperature exceeds a certain value, the oil viscosity decreases significantly, the system leakage increases, the rubber seals age faster, and frequent operations lead to an increase in large particles in the oil, which easily causes the hydraulic valve group to get stuck, seriously affecting the safe operation of the valve, the utility model provides the following technical solutions: a valve hydraulic station with a cooling and filtering system, comprising a hydraulic station oil tank, a front pipeline, a rear pipeline, a cooling pipeline, a filtering pipeline and a signal processing unit; the output end of the hydraulic station oil tank is connected to the front pipeline, the front pipeline is connected in parallel to one end of the cooling pipeline and the filtering pipeline, the other end of the cooling pipeline and the filtering pipeline is connected to the rear pipeline, and the rear pipeline is connected to the hydraulic station oil The input end of the box forms a loop; when the signal processing unit detects that the temperature of the hydraulic oil reaches the upper limit of the set value, the signal processing unit sends a first opening control signal, and the first opening control signal can make the front pipeline, the cooling pipeline and the rear pipeline conductive; when it reaches the lower limit of the set value, the signal processing unit sends a first closing control signal, and the first closing control signal can close the front pipeline, the cooling pipeline and the rear pipeline; when the signal processing unit detects that the contamination level of the hydraulic oil reaches the upper limit of the set value, the signal processing unit sends a second opening control signal, and the second opening control signal can make the front pipeline, the filter pipeline and the rear pipeline conductive; when it reaches the lower limit of the set value, the signal processing unit sends a second closing control signal, and the second closing control signal can close the front pipeline, the filter pipeline and the rear pipeline.

[0005] Preferably, the front pipeline includes an oil drain valve, a circulation pump and a primary filter, and the oil drain valve, the circulation pump and the primary filter are arranged on the pipeline in sequence, and the primary filter can filter particles in the flowing oil.

[0006] Preferably, the post-pipeline includes a first solenoid valve, a manual three-way valve and a secondary filter, and the first solenoid valve, the manual three-way valve and the secondary filter are sequentially arranged on the pipeline, and the secondary filter can filter particles in the flowing oil.

[0007] Preferably, the cooling pipeline includes a second solenoid valve and a cooler, and the second solenoid valve and the cooler are sequentially arranged on the pipeline, and the cooler can reduce the temperature of the oil flowing through.

[0008] Preferably, the cooling pipeline further comprises a sewage discharge pipe, wherein the sewage discharge pipe is arranged between the second solenoid valve and the cooler, and a manual valve is arranged on the sewage discharge pipe, and the dirty oil in the cooler can be discharged by opening the manual valve.

[0009] Preferably, the filtering pipeline comprises a third solenoid valve, and the third solenoid valve is arranged on the pipeline.

[0010] Preferably, the signal processing unit includes a temperature sensor and an oil particle size sensor, the first opening control signal and the first closing control signal are sent by the temperature sensor, and the second opening control signal and the second closing control signal are sent by the oil particle size sensor.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The temperature sensor is connected to the switch of the circulating pump, and the upper and lower limits are set. The switch of the circulating pump is automatically opened and closed according to the temperature change of the hydraulic oil in the hydraulic station tank, and the hydraulic oil temperature can be automatically detected and controlled; the oil particle size sensor is connected to the switch of the circulating pump, and the upper and lower limits are set. The switch of the circulating pump is automatically opened and closed according to the change of the contamination level of the hydraulic oil in the hydraulic station tank, and the purpose of automatically controlling the oil contamination level can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall system of the utility model;

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model;

[0016] In the figure: 1. Hydraulic station oil tank; 2. Oil drain valve; 3. Circulation pump; 4. Primary filter; 5. Second solenoid valve; 6. Manual valve; 7. Cooler; 8. Third solenoid valve; 9. First solenoid valve; 10. Manual three-way valve; 11. Secondary filter; 12. Temperature sensor; 13. Oil particle size sensor. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0018] Depend on Figure 1-2 The utility model includes a hydraulic station oil tank 1, a front pipeline, a rear pipeline, a cooling pipeline, a filter pipeline and a signal processing unit; the output end of the hydraulic station oil tank 1 is connected to the front pipeline, the front pipeline is connected in parallel to one end of the cooling pipeline and the filter pipeline, the other end of the cooling pipeline and the filter pipeline is connected to the rear pipeline, and the rear pipeline is connected to the input end of the hydraulic station oil tank 1 to form a loop; when the signal processing unit detects that the temperature of the hydraulic oil reaches the upper limit of the set value, it sends a first start control signal, and the first start control signal can make the front pipeline The pipeline, cooling pipeline and rear pipeline are connected. When the lower limit of the set value is reached, a first closing control signal is sent, and the first closing control signal can close the front pipeline, cooling pipeline and rear pipeline; when the signal processing unit detects that the contamination level of the hydraulic oil reaches the upper limit of the set value, a second opening control signal is sent, and the second opening control signal can connect the front pipeline, filter pipeline and rear pipeline. When the lower limit of the set value is reached, a second closing control signal is sent, and the second closing control signal can close the front pipeline, filter pipeline and rear pipeline.

[0019] The front pipeline includes an oil drain valve 2, a circulation pump 3 and a primary filter 4, which are arranged on the pipeline in sequence, and the primary filter 4 can filter particles in the flowing oil.

[0020] The post pipeline includes a first solenoid valve 9, a manual three-way valve 10 and a secondary filter 11, which are sequentially arranged on the pipeline. The secondary filter 11 can filter particles in the flowing oil.

[0021] The cooling pipeline includes a second solenoid valve 5 and a cooler 7. The second solenoid valve 5 and the cooler 7 are sequentially arranged on the pipeline. The cooler 7 can reduce the temperature of the oil flowing through.

[0022] The cooling pipeline also includes a sewage discharge pipe, which is arranged between the second solenoid valve 5 and the cooler 7. A manual valve 6 is arranged on the sewage discharge pipe. The dirty oil in the cooler 7 can be discharged by opening the manual valve 6.

[0023] The filtering pipeline comprises a third solenoid valve 8 , which is arranged on the pipeline.

[0024] The signal processing unit includes a temperature sensor 12 and an oil particle size sensor 13 . The first opening control signal and the first closing control signal are sent by the temperature sensor 12 , and the second opening control signal and the second closing control signal are sent by the oil particle size sensor 13 .

[0025] Working principle: When the temperature sensor 12 detects that the temperature of the hydraulic oil reaches the upper limit of the set value, the first opening control signal is sent, the circulation pump 3 starts to run, the second solenoid valve 5 and the first solenoid valve 9 are opened, and the hydraulic oil in the hydraulic station tank 1 enters the circulation pump 3 through the opened drain valve 2, passes through the primary filter 4 and the second solenoid valve 5, and enters the cooler 7. After being cooled by the cooler 7, it returns to the hydraulic station tank 1 through the first solenoid valve 9, the manual three-way valve 10 and the secondary filter 11. This cycle is repeated until the temperature sensor 12 detects that the hydraulic oil temperature reaches the lower limit of the set value, and sends the first closing control signal to stop the circulation pump 3, and the second solenoid valve 5 and the first solenoid valve 9 are closed; when the oil particle size sensor 13 detects that the contamination level of the hydraulic oil reaches the upper limit of the set value, it sends the second opening control signal, and the circulation pump 3 starts When the hydraulic station is running, the third solenoid valve 8 and the first solenoid valve 9 are opened, and the hydraulic oil in the hydraulic station tank 1 enters the circulation pump 3 through the opened drain valve 2, passes through the primary filter 4, the third solenoid valve 8 and the first solenoid valve 9, and returns to the hydraulic station tank 1 through the manual three-way valve 10 and the secondary filter 11, and the cycle is repeated until the oil particle size sensor 13 detects that the contamination level of the hydraulic oil reaches the lower limit of the set value, and sends a second closing control signal to stop the circulation pump 3, and the third solenoid valve 8 and the first solenoid valve 9 are closed; when the cooler 7 is blocked, the manually operated circulation pump 3 starts to run, the third solenoid valve 8 is opened, the manual valve 6 is opened, and the hydraulic oil in the hydraulic station tank 1 enters the circulation pump 3 through the opened drain valve 2, passes through the primary filter 4 and the third solenoid valve 8, and reversely flushes the cooler 7, and the dirty oil after flushing is discharged through the manual valve 6.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve hydraulic station with a cooling and filtering system, characterized in that: It includes a hydraulic station oil tank (1), a front pipeline, a rear pipeline, a cooling pipeline, a filter pipeline and a signal processing unit; The output end of the hydraulic station oil tank (1) is connected to a front pipeline, the front pipeline is connected in parallel to one end of a cooling pipeline and a filtering pipeline, the other ends of the cooling pipeline and the filtering pipeline are connected to a rear pipeline, and the rear pipeline is connected to the input end of the hydraulic station oil tank (1) to form a loop; When the signal processing unit detects that the temperature of the hydraulic oil reaches an upper limit of a set value, it sends a first opening control signal, which can connect the front pipeline, the cooling pipeline and the rear pipeline. When it reaches a lower limit of the set value, it sends a first closing control signal, which can close the front pipeline, the cooling pipeline and the rear pipeline. When the signal processing unit detects that the contamination level of the hydraulic oil reaches the upper limit of the set value, it sends a second opening control signal, and the second opening control signal can make the front pipeline, the filter pipeline and the rear pipeline conductive. When it reaches the lower limit of the set value, it sends a second closing control signal, and the second closing control signal can close the front pipeline, the filter pipeline and the rear pipeline.

2. A valve hydraulic station with a cooling and filtering system according to claim 1, characterized in that: The front pipeline comprises an oil drain valve (2), a circulation pump (3) and a primary filter (4), and the oil drain valve (2), the circulation pump (3) and the primary filter (4) are arranged in sequence on the pipeline.

3. A valve hydraulic station with a cooling and filtering system according to claim 2, characterized in that: The post-pipeline comprises a first solenoid valve (9), a manual three-way valve (10) and a secondary filter (11), wherein the first solenoid valve (9), the manual three-way valve (10) and the secondary filter (11) are arranged in sequence on the pipeline.

4. A valve hydraulic station with a cooling and filtering system according to claim 3, characterized in that: The cooling pipeline comprises a second solenoid valve (5) and a cooler (7), and the second solenoid valve (5) and the cooler (7) are arranged in sequence on the pipeline.

5. A valve hydraulic station with a cooling and filtering system according to claim 4, characterized in that: The cooling pipeline also includes a sewage discharge pipeline, which is arranged between the second solenoid valve (5) and the cooler (7), and a manual valve (6) is arranged on the sewage discharge pipeline.

6. A valve hydraulic station with a cooling and filtering system according to claim 5, characterized in that: The filtering pipeline comprises a third solenoid valve (8), and the third solenoid valve (8) is arranged on the pipeline.

7. A valve hydraulic station with a cooling and filtering system according to claim 6, characterized in that: The signal processing unit comprises a temperature sensor (12) and an oil particle size sensor (13); the first opening control signal and the first closing control signal are sent by the temperature sensor (12); and the second opening control signal and the second closing control signal are sent by the oil particle size sensor (13).

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