Reservoir with additional wall

Abstract

The invention is a conventional reservoir structure with a special geometry that contains hydraulic oil, wherein; it comprises an outer wall, which is the outer wall of the chamber through which heat transfer fluid circulates, a heat transfer fluid chamber located on the outside of said reservoir, through which the heat transfer fluid is circulated, a mixing fan used to homogeneously condition the hydraulic oil to the desired temperature, an inlet / outlet port that provides entry and exit to the chamber for circulation of heat transfer fluid, a heat transfer fluid flow path with helical geometry that directs the heat transfer fluid.

Description

[0001] RESERVOIR WITH ADDITIONAL WALL

[0002] Technical Field

[0003] The invention relates to a hydraulic oil reservoir that, in addition to a conventional hydraulic oil reservoir, has a completely sealed external additional chamber to condition the hydraulic oil inside to the desired temperature, and is insulated to maintain the current heat value.

[0004] The invention particularly aims to ensure heat exchange by circulating heat transfer fluid in a sealed additional chamber where direct contact with hydraulic oil is prevented.

[0005] Prior Art

[0006] Conventional hydraulic oil reservoirs used in industry are elements that serve to store the hydraulic oil used in the relevant hydraulic system. However, reservoirs contain some accessories used in the hydraulic system.

[0007] In the present applications, reservoirs do not have the function to undertake any conditioning task. If a cooling condition is required in hydraulic systems, it is mandatory to use heat transfer devices such as heat exchangers. Heat transfer fluid from an external cooling system is circulated in these exchangers. At the same time, the hydraulic oil in the reservoir is circulated through the exchanger with an additional circulation pump, allowing heat exchange between the hydraulic oil and heat transfer fluid in the exchanger. Additional purchasing / operating and maintenance costs occur with the heat exchanger, hydraulic circulation pump and their installations used.

[0008] Another issue is that if a heating condition is required in hydraulic systems, it is necessary to use heaters such as resistance. Existing reservoirs can operate within a limited temperature range of -10 'C to +80cC. Conventional oil reservoirs are currently unusable in hydraulic systems where special operating temperatures are required and / or conditioning is demanded due to these features.

[0009] As a result of the research carried out on the subject, a utility model application titled "Innovation in hydraulic oil tank" numbered TR 2020 / 02287 was found. The relevant application relates to the oil tank of hydraulic systems where pressurized oil is stored, including cylinders and valves operating with hydraulic oil, wherein; it relates to a protrusion that is developed to prevent the oil tank from leaking oil against high pressure and at the same time to add strength to the oil tank, enables the positioning of the gasket and the top cover to be fixed to the upper part of the tank with a weldless quadrangular section, where the hydraulic oil is stored, by means of bolts / nuts, formed in the upper part of the tank, which does not allow oil leakage from the upper part against high pressure. It appears that the relevant application does not meet the requirements mentioned above.

[0010] As a result, it has become necessary to make a development in the relevant technical field due to the negativities described above and the inadequacy of existing solutions on the subject.

[0011] Purpose of the Invention

[0012] The invention is inspired by current situations and aims to solve the above-mentioned deficiencies.

[0013] The main purpose of the invention is to allow the conditioning of the hydraulic oil in the reservoir by means of heat exchange with the hydraulic oil of the conditioned heat transfer fluid circulated by an external cooling system in a completely insulated chamber located on the additional wall of the reservoir, which is subject of the invention.

[0014] Another purpose of the invention is that, unlike conventional reservoirs, the reservoir of the invention does not require an additional heat exchanger.

[0015] Another purpose of the invention is that the reservoir is suitable for both heating and cooling by means of its design structure.

[0016] Another purpose of the invention is to provide insulation by placing the additional wall on the outside of the reservoir.

[0017] The invention is relates to a hydraulic oil reservoir that, in order for the hydraulic oil inside to reach the desired temperature, a heat transfer fluid conditioned above the target temperature is circulated in a sealed additional chamber created on the additional wall of the reservoir, where direct contact with the hydraulic oil is prevented, and heat exchange is achieved, for homogeneous conditioning, hydraulic oil is mixed with a double-sided bearing mixing fan, and thermal insulation is provided with materials with low heat conduction coefficient at the contact points.

[0018] In addition, the reservoir, which is subject of the invention is capable of operating in the operating range of -50 <3 to 200 O degrees require d by application. Because of the nature of hydraulic oil, homogeneous conditioning to the desired temperature at rest is not possible due to hydraulic oil viscosity and density changing in response to thermal load.

[0019] The reservoir, which is subject of the invention provides homogeneous conditioning by mixing hydraulic oil in a controlled manner by means of a double-sided bearing mixing fan. As a contribution to homogeneous conditioning and efficiency, there is a flow path in helical geometry in the chamber located on the additional wall of the reservoir, so that the heat transfer fluid circulates in the longest possible path.

[0020] Maintaining the temperature of the conditioned hydraulic oil is essential to keep it at the targeted temperature. The presence of the additional wall on the outside of the tank provides insulation.

[0021] The reservoir, which is subject of the invention has seals made of EPDM material with a low heat conduction coefficient to prevent accessories such as the mixing motor from being exposed to extreme temperatures ranging from -50'0 to 2000 degrees. In addition, the heat flow over the motor shaft is minimized through the coupling made of PTFE (Polytetrafluoroethylene) material with low heat conduction coefficient, located on the mixing motor shaft.

[0022] Figures to Help Understanding of the Invention

[0023] Figure 1 is a general view of the product, which is subject of the invention.

[0024] Description of Part References

[0025] 10. Outer wall

[0026] 20. Inner wall

[0027] 30. Reservoir

[0028] 40. Heat transfer fluid chamber

[0029] 50. Mixing fan 60. I nlet / outlet port

[0030] 70. Heat transfer fluid flow path

[0031] 80. Shaft seal

[0032] 90. Seal

[0033] 100.PTFE coupling 1 10. Mixing motor

[0034] Detailed Description of the Invention

[0035] In this detailed description, the preferred embodiments of the reservoir, which is subject of the invention are described only for a better understanding of the subject.

[0036] Conventional reservoir (30) configuration with a special geometry, which contains the hydraulic oil within the subject of the invention consists of an outer wall (10), which is the outer wall of the reservoir in which the heat transfer fluid is circulated, an inner wall (20), which is the inner wall of the hydraulic reservoir, a fully insulated heat transfer fluid chamber (40) located on the outside of the reservoir, through which the heat transfer fluid is circulated, with a flow path in helical geometry to increase efficiency, a propellershaped mixing fan (50) used to homogeneously condition the hydraulic oil to the desired temperature, an inlet / outlet port (60), which are interfaces that provide entry and exit to the chamber (40) for circulation of the heat transfer fluid, a heat transfer fluid flow path (70) with helical geometry that directs the heat transfer fluid, a rotary shaft seal (80) with a high operating temperature range that prevents hydraulic oil from leaking out around the mixing fan (50), a seal (90) made of EPDM material with low heat conduction coefficient used to prevent the mixing motor (110) from being exposed to extreme temperatures ranging from -40cC to 10O'C degrees reached by the hydraulic oil, a PTFE coupling (100) made of PTFE material with low heat conduction coefficient used to prevent the mixing motor shaft from being exposed to extreme temperatures ranging from -40cC to O'C degrees reached by hydraulic oi I and a reducer mixing motor (110) that drives the mixing fan (50) inside the reservoir (30).

[0037] The reservoir (30) makes the hydraulic oil inside interact with the heat transfer fluid circulating in the chamber (40) formed by the outer wall (10) on the inner wall surface (20), allowing heat transfer via conduction. Heat transfer fluid coming from an external conditioning unit enters through the inlet port (60) and fills the heat transfer fluid chamber (40). The heat transfer fluid moves along the flow path (70) formed with the helical geometry in the heat transfer fluid chamber (40), exits the outlet port (60) and returns to the external conditioning unit. While the heat transfer fluid circulation continues, the oil in the reservoir (30) is mixed at a controlled speed by the mixing fan (50) driven by the mixing motor (110) to ensure homogeneous conditioning. In order to prevent the mixing motor (1 10) from being affected by the extreme temperatures at which the reservoir (30) can operate, from -50 to +200 degrees, the mixing motor group is insulated with a PTFE coupling (100) and seal (90) with low heat conduction coefficient. Hydraulic oil is prevented from leaking into the external environment around the mixing fan (50) by means of the shaft seal (80) located on the shaft of the mixing fan (50). When the conditioning process to the target temperature is completed, the reservoir (30) containing the hydraulic oil is isolated from the ambient temperature as it remains inside the outer chamber (40). In this way, the hydraulic oil temperature can be kept at the target temperature in an isolated manner with high efficiency.

Claims

CLAIMS1. A conventional reservoir (30) configuration with a special geometry that contains the hydraulic oil within the invention, characterized by comprising:• an outer wall (10), which is the outer wall of the chamber through which the heat transfer fluid is circulated,• a heat transfer fluid chamber (40), located on the outer part of said reservoir, through which the heat transfer fluid is circulated,• a mixing fan (50) used to homogeneously condition the hydraulic oil to the desired temperature,• an inlet / outlet port (60), which provides entry and exit to the chamber (40) for circulation of the heat transfer fluid,• a heat transfer fluid flow path (70) with helical geometry that directs the heat transfer fluid.

2. The reservoir (30) configuration according to claim 1 , characterized in that the heat transfer fluid chamber (40) is completely insulated with a flow path in helical geometry to increase efficiency.

3. The reservoir (30) configuration according to claim 1 , characterized by comprising a shaft seal (80) located on the shaft of the mixing fan (50), which prevents the hydraulic oil from leaking into the external environment around the mixing fan (50).

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