Fluid conditioning unit

Abstract

The invention relates to a fluid conditioning unit that is used in the hydraulic power unit to condition the hydraulic oil to the target temperature value and supply a user with the fluid that has reached the target temperature value at the desired flow rate and pressure and conditions hydraulic oil of any class to a target temperature value in the -50 / +200°C temperature range and moves the target user, which is a hydraulic component, in the desired direction and speed at the adjusted flow rate and pressure value.

Description

[0001] FLUID CONDITIONING UNIT

[0002] Technical Field

[0003] The invention relates to a system that conditions the hydraulic oil to the target temperature value in the hydraulic power unit and is used to supply a user with fluid that has reached the target temperature value at the desired flow rate and pressure.

[0004] The invention particularly relates to a fluid conditioning unit that conditions hydraulic oil of any class to a target temperature value in the -50 / +200‘C temperature range and moves the target user, which is mostly a hydraulic component in the desired direction and speed at the adjusted flow rate and pressure value.

[0005] The State of Art

[0006] Hydraulic power units are generally systems that move a hydraulic component in the requested direction, speed and force by feeding it at the desired flow rate and pressure. Hydraulic power units are systems that have limited operating conditions in the industry and are standardized under these conditions.

[0007] Hydraulic power units may have a temperature conditioning system to keep the hydraulic oil in the optimum viscous range. However, this conditioning range is mostly in the +5 / +40tC range and is generally for cooling purposes. In addition, the operating temperature ranges of the components on conventional hydraulic power units are generally -10 / +80TD. Therefore, it is not possible for conventional hydraulic power units to operate in a target temperature range such as -50 / +200‘C.

[0008] Rotary pumps and spool valves used in conventional hydraulic power units apply constant thermal load to the hydraulic oil due to internal leaks caused by radial clearance. Therefore, hydraulic oil tends to heat up consistently. It is not possible to keep hydraulic oil at a temperature value, especially below ambient temperature, with conventional hydraulic power units. In addition, hydraulic power units do not have any insulation equipment. Therefore, they cannot maintain the temperature of a hydraulic oil conditioned to the desired temperature value. Conventional hydraulic power units are generally capable of operating in the viscosity range of 10-1600 cSt. Since the viscosity of a fluid inherently varies with temperature, the viscosity of hydraulic oil in a target temperature range such as -50 / +200tC varies between 3-2200 cSt. These viscosity values are outside the viscosity range in which a conventional hydraulic power unit can operate.

[0009] Conventional hydraulic power units in the present art are not capable of conditioning a fluid over a wide temperature range and sending the fluid to a hydraulic equipment at the desired flow rate, pressure value and direction by continuing to keep the fluid at this target temperature through the insulation equipment, without applying any thermal load to the fluid at the target temperature, which has reached a wide viscosity range due to its temperature value. For this reason, there was a need to eliminate the problems experienced in the state of the art. In the research carried out in the literature, the document numbered CN205136185 can be given as an example of the state of the art. In said document, a hydraulic control system has been described to provide sensitive synchronous control of a plurality of hydraulic cylinders. However, in said document, there is no mention of a system that conditions a fluid to a wide temperature range.

[0010] Another example of the state of the art is the document numbered TR2023 / 013764. In said document, a unit advance hydraulic cylinder is described to ensure the transfer of unit volume of oil per unit time, thus providing unit advance and the desired total advance, without being affected by changes in the viscosity of the hydraulic oil depending on the conditions and without requiring new adjustments. However, in said document, there is no mention of a system that conditions a fluid to a wide temperature range.

[0011] As a result, the existence of the above problems and the inadequacy of existing solutions have required a development in the relevant technical field.

[0012] Object of the Invention

[0013] The present invention relates to a fluid conditioning unit that eliminates the above- mentioned disadvantages and brings new advantages to the relevant technical field. The main object of the invention is to present a fluid conditioning unit that conditions the hydraulic oil added to the reservoir at a desired temperature value in the - 50 / +200tC temperature range with the heat transfer fluid coming from the dynamic temperature control unit.

[0014] The object of the invention is to present a fluid conditioning unit that carries out the heat transfer between the heat transfer fluid and hydraulic oil in a jacketed reservoir and the jacketed reservoir has an insulation , in addition to the fact that the heat transfer fluid chamber containing the heat transfer fluid is insulated so that the hydraulic oil does not come into direct contact with the environment by placing the heat transfer fluid chamberoutside the reservoir containing the hydraulic oil.

[0015] Another object of the invention is to present a fluid conditioning unit that is conditioned to the target temperature value in the jacketed reservoir and absorbs the hydraulic oil, which has a viscosity in the range of 3-2200 cSt depending on the current temperature value, from the jacketed reservoir by means of a hydraulically driven linear pump since it is not possible to transfer a fluid in this range with a conventional pump and that does not produce a thermal load like conventional pumps since the hydraulically driven linear pump has no internal leakage.

[0016] Another object of the invention is to present a fluid conditioning unit that prevents thermal loading caused by internal leakage consisting of the spool valves by means of the absence of spool valves on the line while transferring the fluid absorbed by the hydraulically driven linear pump to the system.

[0017] Another object of the invention is to present a fluid conditioning unit whose flow rate is not measured with a conventional flow meter so as not to produce a thermal load and that instead of this, calculates the flow rate by evaluating the speed and position information received from the position sensor on the hydraulically driven linear pump by the electronic control unit.

[0018] Another object of the invention is to present a fluid conditioning unit with a hydraulically driven linear pump of which is equipped with isolation equipment. In order to fulfil all the objects stated above and that can be derived from the detailed description, the invention is a fluid conditioning unit used to condition the hydraulic oil up to the target temperature value in the hydraulic power unit and to feed a user at the desired flow rate and pressure with the fluid that has reached the target temperature value, comprising the following:

[0019] Jacketed reservoir with an insulated structure that has an additional chamber and can condition the hydraulic oil in it to the desired temperature by allowing the conditioned heat transfer fluid, which is circulated in a completely insulated reservoir, to exchange heat with the hydraulic oil,

[0020] - dynamic temperature control unit that conditions the heat transfer fluid in the jacketed reservoir and circulates it in the chamber of the jacketed reservoir,

[0021] - a completely insulated heat transfer fluid chamber that is located on the outside of the jacketed reservoir through which the heat transfer fluid circulates,

[0022] - a hydraulically driven linear pump that absorbs the hydraulic oil in the jacketed reservoir and transfers it to the user,

[0023] - a valve manifold that controls the hydraulically driven linear pump by managing hydraulic power from an external hydraulic unit,

[0024] - a directional control valve that enables the hydraulically driven linear pump to perform suction and transfer functions by controlling the direction of the valve manifold,

[0025] - a valve manifold port that provides the connection of an external hydraulic power to the valve manifold and is the hydraulic interface of the valve manifold,

[0026] - a lock valve group that provides the operation of the hydraulically driven linear pump by controlling the flow of the valve manifold,

[0027] - a temperature sensor that measures the temperature of the conditioned fluid inside the hydraulically driven linear pump,

[0028] - a position sensor that provides flow calculation by measuring the position and speed of the hydraulically driven linear pump,

[0029] - a collector that collects the oil transferred by the linear driven hydraulic pump,

[0030] - a reservoir temperature sensor that measures the temperature of the oil in the jacketed reservoir,

[0031] - a ball valve controlling the direction of hydraulic oil passing through the collector, a measuring manifold connected with ball valve, an output sensor on the measuring manifold which provides measurement of pressure and temperature values of the conditioned oil, before it is sent to the user hydraulic equipment,

[0032] - an electronic control unit that controls and commands the operating regime of the fluid conditioning unit within the framework of an algorithm.

[0033] The structural and characteristic features and all the advantages of the invention will be understood more clearly by means of the figures given below and the detailed description written with references to these drawings. For this reason, the evaluation needs to be made by taking these figures and detailed description into consideration.

[0034] Figures to Help Understand the Invention

[0035] Figure 1 : It is a schematic view of the fluid conditioning unit, which is subject of the invention.

[0036] Description of Part References

[0037] 1. Jacketed reservoir

[0038] 2. Dynamic temperature control unit

[0039] 3. Heat transfer liquid chamber

[0040] 4. Mixing unit

[0041] 5. Hydraulically driven linear pump

[0042] 6. Valve manifold

[0043] 7. Directional control valve

[0044] 8. Valve manifold port

[0045] 9. Lock valve group

[0046] 10. Temperature sensor

[0047] 11. Position sensor

[0048] 12. Suction line valve

[0049] 13. Collector

[0050] 14. Transfer line valve

[0051] 15. Reservoir temperature sensor

[0052] 16. Discharge valve

[0053] 17. Filter

[0054] 18. Filtration pump 19. Filtration valve

[0055] 20. Ball valve

[0056] 21. Measuring manifold

[0057] 22. Output sensor

[0058] 23. Electronic control unit

[0059] Detailed Description of the Invention

[0060] In this detailed description, the preferred alternatives of the fluid conditioning unit of the invention are described only for a better understanding of the subject and in a way that does not form any limiting effect.

[0061] In Figure 1 , it is given a schematic view of the fluid conditioning unit, which is the subject of the invention. According to this, the fluid conditioning unit comprises the following in its most basic form; an Jacketed reservoir (1 ) with an insulated structure that can condition the hydraulic oil inside to the desired temperature by allowing the conditioned heat transfer fluid being circulated in a completely insulated chamber on the jacket to exchange heat with the hydraulic oil, a dynamic temperature control unit (2) that conditions the heat transfer fluid in the jacketed reservoir (1 ) and circulates it in the chamber of the jacketed reservoir (1 ), a completely insulated heat transfer fluid chamber (3) that is located on the outside of the jacketed reservoir (1 ) through which the heat transfer fluid circulates, a mixing unit (4) that mixes the hydraulic oil in the jacketed reservoir (1 ) and ensures homogeneous conditioning of the hydraulic oil to the desired temperature, a hydraulically driven linear pump (5) that absorbs the hydraulic oil in the jacketed reservoir (1 ) and transfers it to the user, a valve manifold (6) that controls the hydraulically driven linear pump (5) by managing hydraulic power from an external hydraulic unit, a directional control valve (7) that enables the hydraulically driven linear pump (5) to perform suction and transfer functions by controlling the direction of the valve manifold (6), a valve manifold port (8) that provides the connection of an external hydraulic power to the valve manifold (6) and is the hydraulic interface of the valve manifold (6), a lock valve group (9) that provides smooth and comfortable operation of the hydraulically driven linear pump (5) by controlling the flow of the valve manifold (6), a temperature sensor (10) that measures the temperature of the conditioned fluid in the hydraulically driven linear pump (5), a position sensor (11 ) that provides flow rate calculation by measuring the position and speed of the hydraulically driven linear pump (5), an suction line valve (12) that is located on the line between the jacketed reservoir (1 ) and the hydraulically driven linear pump (5), a collector (13) that collects the oil transferred by the linear driven hydraulic pump (5), a transfer line valve (14) that is located on the line between the hydraulically driven linear pump (5) and the collector (13), a reservoir temperature sensor (15) that measures the temperature of the oil in the jacketed reservoir (1 ), a discharge valve (16) that allows the oil in the jacketed reservoir (1 ) to be discharged, a filter (17) that allows the oil in the jacketed reservoir (1 ) to be filtered, a filtration pump (18) that circulates the oil in the jacketed reservoir (1 ) and passes it through the filter (17), a filtration valve (19) that is located between the filtration pump (18) and the jacketed reservoir (1 ), a ball valve (20) that controls the direction of the hydraulic oil passing through the collector (13), a measuring manifold (21 ) that is connected to the ball valve (20), an output sensor (22) that enables the pressure and temperature values of the oil conditioned on the measuring manifold (21 ) to be measured before being sent to the user hydraulic equipment, an electronic control unit (23) that controls and commands the operating regime of the fluid conditioning unit within the framework of an algorithm through a programmable processor.

[0062] In the fluid conditioning unit of the invention, the conditioned heat transfer fluid coming from the dynamic temperature control unit (2) under the control of the electronic control unit (23) is circulated in the heat transfer fluid chamber (3) of the jacketed reservoir (1 ). The jacketed reservoir (1 ) enables heat transfer through conduction by interacting on its inner surface the hydraulic oil inside with the heat transfer fluid circulating in the heat transfer fluid chamber (3). While heat transfer fluid circulation is continuing, the hydraulic oil in the jacketed reservoir (1 ) is mixed by the mixing unit (4) under the control of the electronic control unit (23) and homogeneous conditioning is provided.

[0063] The electronic control unit (23) controls and commands the operating regime of the fluid conditioning unit within the framework of an algorithm through a programmable processor. Said algorithm is customizable. Additionally, there is a screen on the electronic control unit (23) that allows the operator to use the electronic control unit (23) to monitor the current status of the fluid conditioning unit and the measured values.

[0064] The valve manifold (6) receives the hydraulic feed from an external standard hydraulic power unit via the directional control valve (7) located on it, from the valve manifold port (8) and sends it to the hydraulically driven linear pump (5) under the management of the electronic control unit (23). The hydraulic power coming from the valve manifold (6) forms movement and force in the hydraulically driven linear pump (5). Control of the movement and force produced is provided in the electronic control unit (23) via the valve manifold (6). The lock valve group (9) located on the valve manifold (6) ensures that the movements of the hydraulically driven linear pump (5) are safe and smooth.

[0065] While the conditioning process of the hydraulic oil in the jacketed reservoir (1 ) to the desired temperature is continuing, the suction line valve (12) located between the jacketed reservoir (1 ) and the hydraulically driven linear pump (5) is opened under the management of the electronic control unit (23). After the suction line valve (12) is opened, the piston group of the hydraulically driven linear pump (5) moves to the left by means of the valve manifold (6) managed by the electronic control unit (23), and begins to vacuum the hydraulic oil in the jacketed reservoir (1 ). After the completion of this suction function is confirmed by the position sensor (1 1 ) value by the electronic control unit (23), the piston group of the hydraulically driven linear pump (5) move to the right and transfer the hydraulic oil put inside the hydraulically driven linear pump (5) back to the jacketed reservoir (1 ) by means of the valve manifold (6) managed by the electronic control unit (23). After the completion of this transfer function is confirmed by the electronic control unit (23) with the position sensor (1 1 ) value, the suction line valve (12) is closed under the management of the electronic control unit (23). It is aimed for the hydraulically driven linear pump (5) to gradually come into contact with the conditioned oil and approach the target temperature without going into thermal shock with this back and forth movement of the hydraulically driven linear pump (5). This process is periodically repeated more than once until the conditioning of the hydraulic oil in the jacketed reservoir (1 ) to the desired temperature is completed.

[0066] While the conditioning process is continuing, the filtration valve (19) is opened under the control of the electronic control unit (23) and the hydraulic oil is absorbed from the jacketed reservoir (1 ) by means of the filtration pump (18), passed through the filter (17) and sent back to the jacketed reservoir (1 ). This circulation process is necessary for the hydraulic oil to be cleaned.

[0067] After it is confirmed by the electronic control unit (23) with the value of the reservoir temperature sensor (15) that the conditioning process of the hydraulic oil in the jacketed reservoir (1 ) to the desired temperature is completed, the suction line valve (12) located between the jacketed reservoir (1 ) and the hydraulically driven linear pump (5) is opened under the management of the electronic control unit (23). After the suction line valve (12) is opened, the piston group of the hydraulically driven linear pump (5) move to the left and begin to vacuum the hydraulic oil in the jacketed reservoir (1 ) by means of the valve manifold (6) managed by the electronic control unit (23). After the completion of this suction function is confirmed by the electronic control unit (23) with the position sensor (1 1 ) value, the suction line valve (12) located between the jacketed reservoir (1 ) and the hydraulically driven linear pump (5) is closed under the management of the electronic control unit (23). After the temperature of the hydraulic oil in the hydraulically driven linear pump (5) is confirmed by the electronic control unit (23) with the temperature sensor (10) value, in the same sequence, the transfer line valve (14) located between the hydraulically driven linear pump (5) and the collector (13) is opened under the management of the electronic control unit (23).

[0068] After the transfer line valve (14) is opened, the piston group of the hydraulically driven linear pump (5) move to the right and transfer the hydraulic oil put inside the hydraulically driven linear pump (5) to the collector (13) by means of the valve manifold (6) managed by the electronic control unit (23). During this transfer process, the speed of the hydraulically driven linear pump (5) is determined by means of the valve manifold (6) managed by the electronic control unit (23) according to the requested flow rate. The speed of the hydraulically driven linear pump (5) is confirmed by the position sensor (1 1 ) value by the electronic control unit (23). Any necessary corrections are applied to the control signal. During this transfer process, it is decided whether the hydraulically driven linear pump (5) will move or not by means of the valve manifold (6) managed by the electronic control unit (23) according to the requested pressure value. The position of the hydraulically driven linear pump (5) is confirmed by the electronic control unit (23) with the position sensor (1 1 ) value. The pressure value in the system is confirmed by the electronic control unit (23) with the value of the output sensor (22) on the measuring manifold (21 ). Any necessary corrections are applied to the control signal.

[0069] The hydraulic component, which is the target user, is moved at the desired flow rate and pressure value by logically opening and closing the ball valves (20) managed by the electronic control unit (23) of the hydraulic oil passing through the collector (13).

Claims

CLAIMS1. A fluid conditioning unit used in the hydraulic power unit to condition the hydraulic oil to the target temperature value and use to supply a user with the fluid that has reached the target temperature value at the desired flow rate and pressure, characterized by comprising:- an jacketed reservoir (1 ) with an insulated structure that has an additional chamber and can condition the hydraulic oil in it to the desired temperature by allowing the conditioned heat transfer fluid, which is circulated in a completely insulated reservoir, to exchange heat with the hydraulic oil,- dynamic temperature control unit (2) that conditions the heat transfer fluid in the jacketed reservoir (1 ) and circulates it in the additional chamber of the jacketed reservoir (1 ),- a completely insulated heat transfer liquid chamber (3) that is located on the outside of the jacketed reservoir (1 ) and through which the heat transfer liquid is circulated,- a hydraulically driven linear pump (5) that absorbs the hydraulic oil in the jacketed reservoir (1 ) and transfers it to the user,- a valve manifold (6) that controls the hydraulically driven linear pump (5) by managing hydraulic power from an external hydraulic unit,- a directional control valve (7) that enables the hydraulically driven linear pump (5) to perform suction and transfer functions by controlling the direction of the valve manifold (6),- a valve manifold port (8) that provides the connection of an external hydraulic power to the valve manifold (6) and is the hydraulic interface of the valve manifold (6),- a temperature sensor (10) that measures the temperature of the conditioned fluid inside the hydraulically driven linear pump (5),- a position sensor (11 ) that provides flow calculation by measuring the position and speed of the hydraulically driven linear pump (5),- a collector^ 3) that collects the oil transferred by the hydraulically driven linear pump (5),- a reservoir temperature sensor (15) that measures the temperature of the oil in the jacketed reservoir (1 ),- a ball valve (20) that controls the direction of the hydraulic oil passing through the collector (13),- a measuring manifold (21 ) that is connected with ball valve (20),- an electronic control unit (23) that controls and commands the operating regime of the fluid conditioning unit within the framework of an algorithm through a programmable processor,- a screen that is located on the electronic control unit (23) and allows the operator to use the electronic control unit (23) to monitor the current status of the fluid conditioning unit and the measured values.

2. The fluid conditioning unit according to claim 1 , characterized by comprising; a mixing unit (4) that mixes the hydraulic oil in the said jacketed reservoir (1 ) and ensures that the hydraulic oil is conditioned homogeneously to the desired temperature.

3. The fluid conditioning unit according to claim 1 , characterized by comprising; an suction line valve (12) that is located on the line between the said jacketed reservoir (1 ) and the hydraulically driven linear pump (5).

4. The fluid conditioning unit according to claim 1 , characterized by comprising; a transfer line valve (14) that is located on the line between the hydraulically driven linear pump (5) and the collector (13).

5. The fluid conditioning unit according to claim 1 , characterized by comprising; a discharge valve (16) that allows the oil in the said jacketed reservoir (1 ) to be discharged.

6. The fluid conditioning unit according to claim 1 , characterized by comprising; a filter (17) that filters the oil in the said jacketed reservoir (1 ).

7. The fluid conditioning unit according to claim 6, characterized by comprising; a filtration pump (18) that circulates the oil in the said jacketed reservoir (1 ) and passes it through the filter (17).

8. The fluid conditioning unit according to claim 7, characterized by comprising; a filtration valve (19) that is located between the said filtration pump (18) and the jacketed reservoir (1 ).

9. The fluid conditioning unit according to claim 1 , characterized by comprising; a lock valve group (9) that is located on the said valve manifold (6) and provides the operation of the hydraulically driven linear pump (5) by controlling the flow of the valve manifold (6).

10. The fluid conditioning unit according to claim 1 , characterized by comprising; an output sensor (22) that is located on said measuring manifold (21 ) and provides the measurement of pressure and temperature values of the conditioned oil on the measuring manifold (21 ) before it is sent to the user hydraulic equipment.

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