CN213899483U - Hydraulic oil heat exchange system and operation machine - Google Patents
Hydraulic oil heat exchange system and operation machine Download PDFInfo
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- CN213899483U CN213899483U CN202023024964.XU CN202023024964U CN213899483U CN 213899483 U CN213899483 U CN 213899483U CN 202023024964 U CN202023024964 U CN 202023024964U CN 213899483 U CN213899483 U CN 213899483U
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Abstract
The utility model provides a hydraulic oil heat transfer system and operation machinery relates to engineering machine tool technical field. The hydraulic oil heat exchange system comprises a first oil way, a first heat exchange device and a second heat exchange device, wherein the first oil way is connected with an oil tank through the first heat exchange device and the second heat exchange device in sequence; the first heat exchange device is one of an air cooling device and a liquid cooling device, and the second heat exchange device is the other one of the air cooling device and the liquid cooling device. Hydraulic oil heat transfer system, hydraulic oil among the hydraulic system can be through multistage cooling, for example can be in proper order through liquid cooling and air-cooled heat transfer cooling, and its heat transfer is fast, can satisfy the heat transfer demand of hydraulic system's hydraulic oil under high-power, the heavy load.
Description
Technical Field
The utility model relates to an operating machinery technical field particularly, relates to a hydraulic oil heat transfer system and operating machinery.
Background
In an operation machine, the oil temperature of a hydraulic system is an important factor for determining the operation efficiency, the working life and whether the whole machine can normally work, under a common condition, the oil temperature of the hydraulic system should be controlled within a certain range (for example, 55 ℃ to 70 ℃), and under a heavy-load working condition, for example, in concrete pumping equipment, the hydraulic system generates a large amount of heat, and if a heat dissipation measure is not taken or the heat dissipation effect is not ideal, the normal operation of the whole equipment can be influenced.
At present, a hydraulic oil heat exchange system is mainly in an air cooling mode, but unreasonable parts still exist, for example, the heat exchange quantity is insufficient, and the high-strength heat exchange requirement cannot be met.
SUMMERY OF THE UTILITY MODEL
The utility model discloses it is not enough to aim at solving in the correlation technique hydraulic oil heat transfer system of operation machinery to a certain extent and exists, for example the not enough problem of heat transfer volume.
In order to solve at least one aspect of the above problems to at least a certain extent, an aspect of the present invention provides a hydraulic oil heat exchange system, including a first oil path, a first heat exchange device and a second heat exchange device, wherein the first oil path is connected to an oil tank through the first heat exchange device and the second heat exchange device in sequence; the first heat exchange device is one of the air cooling device and the liquid cooling device, and the second heat exchange device is the other one of the air cooling device and the liquid cooling device.
Therefore, the first oil way sequentially passes through the first heat exchange device and the second heat exchange device, so that the hydraulic oil in the hydraulic system can be subjected to multistage cooling, for example, the hydraulic system can be subjected to liquid cooling and air cooling heat exchange cooling sequentially, the heat exchange speed is high, and the heat exchange requirement of the hydraulic oil of the hydraulic system under high power and large load can be met.
Optionally, the heat exchanger further comprises a second oil path and a three-way valve, the first oil path comprises a third oil path passing through the first heat exchanger and a fourth oil path passing through the second heat exchanger, and the third oil path and the fourth oil path are communicated through the three-way valve; one end of the second oil way is communicated with the three-way valve, and the other end of the second oil way is suitable for being communicated with the oil tank, or the other end of the second oil way is communicated with one end, far away from the three-way valve, of the third oil way.
Therefore, the three-way valve can well split, combine or close one of the hydraulic oil flow channels (such as the second oil path), and can quickly switch the flow channel of the hydraulic oil or adjust the flow of the hydraulic oil according to the requirement of the heat exchange amount.
Optionally, the system further comprises a first temperature detection device and a controller, the three-way valve is an electric three-way valve, and the controller is in communication connection with the first temperature detection device and the electric three-way valve respectively;
when the other end of the second oil way is communicated with the oil tank, the first temperature detection device is arranged on the third oil way and is positioned between the first heat exchange device and the three-way valve;
when the other end of the second oil way is communicated with one end, far away from the three-way valve, of the third oil way, the first temperature detection device is arranged at one end, far away from the fourth oil way, of the third oil way, and the communication position of the third oil way and the second oil way is located between the first temperature detection device and the first heat exchange device.
Therefore, the temperature of the hydraulic oil in the hydraulic oil heat exchange system before the shunting position can be obtained by setting the first temperature detection device, the controller can timely adjust the control strategy of the electric three-way valve according to the detection data (the oil temperature of the hydraulic oil) of the first temperature detection device, and adjust the heat exchange quantity and/or the heat exchange speed of the hydraulic heat exchange system, so that the oil temperature of the hydraulic oil is in a stable and appropriate state, the reliability is high, and the practicability is high.
Optionally, the system further comprises a second oil path, a first throttling device, a second throttling device, a first temperature detection device and a controller, wherein the controller is in communication connection with the first temperature detection device, the first throttling device and the second throttling device respectively; the first oil way comprises a third oil way passing through the first heat exchange device and a fourth oil way passing through the second heat exchange device and communicated with the third oil way;
two ends of the second oil way are respectively communicated with two ends of the fourth oil way, the first throttling device and the second throttling device are respectively arranged on the fourth oil way and the second oil way, and the first temperature detection device is arranged on the third oil way and is positioned between the communication position of the third oil way and the fourth oil way and the first heat exchange device;
or, two ends of the second oil path are respectively communicated with two ends of the third oil path, the first throttling device and the second throttling device are respectively arranged on the third oil path and the second oil path, the first temperature detection device is arranged at one end, far away from the fourth oil path, of the third oil path, and the communication position of the third oil path and the second oil path is located between the first temperature detection device and the first heat exchange device.
Therefore, the first throttling device and the second throttling device can respectively adjust the flow of the hydraulic oil of the two branches, the accurate adjustment of the flow of the hydraulic oil is facilitated, and the oil temperature of a hydraulic system is more stable; and the temperature of the hydraulic oil in the hydraulic oil heat exchange system before the shunting position can be obtained through the first temperature detection device, and the controller can timely adjust the control strategies of the first throttling device and the second throttling device according to the detection data (the oil temperature of the hydraulic oil) of the first temperature detection device, so that the heat exchange quantity and/or the heat exchange speed of the hydraulic heat exchange system are adjusted, and the oil temperature of the hydraulic oil is in a stable and proper state.
Optionally, the first heat exchange device is the liquid cooling device, the liquid cooling device includes a water tank, and the second heat exchange device is the air cooling device.
From this, the liquid cooling device does the water tank, the hydraulic oil that gets into hydraulic oil heat transfer system is preferred to be passed through the water tank heat transfer avoids to a certain extent the air cooling device opens the energy waste who causes always, plays energy-conserving effect (energy-conserving effect when the other end of second oil circuit and oil tank intercommunication is better), in addition, adopts common water as the liquid cooling medium, and it is convenient for draw materials, and is with low costs, and the practicality is strong.
Optionally, the heat exchanger further comprises a circulating water path, two ends of the circulating water path are suitable for being respectively communicated with the water tank, the circulating water path comprises a second heat dissipation device, and the second heat dissipation device is suitable for exchanging heat with the oil tank.
From this, through the setting in circulation water route utilizes water in the water tank has formed and can have circulated right the oil tank carries out radiating water route in the operation machinery working process, can last right hydraulic oil assists the cooling, simple structure, and the practicality is strong.
Optionally, still include water pump, second temperature-detecting device and controller, the water pump set up in on the circulating water way, second temperature-detecting device set up in the oil tank, the controller respectively with the water pump with second temperature-detecting device communication connection.
From this, can pass through the water pump accelerates the flow of water in the circulation water route, the controller can be according to the detection data of second temperature-detecting device in time adjusts right the control strategy of water pump, for example, when hydraulic system starts or does not form the return circuit, perhaps when the temperature of the hydraulic oil of oil tank is too high, control the water pump starts drive water and forms the circulation, strengthens the cooling effect of circulation water route to hydraulic oil, perhaps, the supplementary oil temperature that reduces hydraulic system well hydraulic oil avoids the oil temperature of hydraulic oil too high, simple structure, the practicality is strong.
Optionally, the first oil path includes a first heat dissipation device, the first heat dissipation device is suitable for being disposed inside the liquid cooling device, and the first heat dissipation device includes a heat dissipation fin structure and/or a coil structure.
Therefore, the first heat dissipation device is large in surface area, high in heat dissipation speed, simple in structure and high in practicability.
The utility model discloses an on the other hand provides an operation machine, operation machine includes above-mentioned arbitrary any hydraulic oil heat transfer system. The working machine has all the beneficial effects of the hydraulic oil heat exchange system, and the detailed description is omitted here.
Optionally, the operation machinery includes a cleaning water tank, and the liquid cooling device of the hydraulic oil heat exchange system is the cleaning water tank.
Therefore, operation machinery can be enough used for wasing including wasing the water tank, simultaneously, utilizes wash the water tank and can realize the heat transfer of hydraulic oil, avoided establishing in addition the liquid cooling device does not need the power consumption moreover, plays energy-conserving effect, in addition, can also utilize to a certain extent hydraulic oil heat transfer system is right wash the water in the water tank and heat up, be convenient for wash, simple structure, the practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of a hydraulic oil heat exchange system in an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a hydraulic oil heat exchange system in another embodiment of the present invention.
Description of reference numerals:
1-a first oil path, 11-a third oil path, 12-a fourth oil path, 111-a first heat dissipation device, 2-a first heat exchange device, 3-a second heat exchange device, 4-a second oil path, 51-a first throttling device, 52-a second throttling device, 53-a three-way valve, 61-a first temperature detection device, 62-a second temperature detection device, 71-a water tank, 72-an oil tank, 73-an oil return pipe, 8-a circulating water path, 81-a second heat dissipation device and 9-a water pump.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "communicate" and "connect" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, references to the terms "an embodiment," "one embodiment," "some embodiments," "exemplary" and "one embodiment," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or embodiment is included in at least one embodiment or embodiment of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or implementation. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or implementations.
The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.
As shown in fig. 1, an embodiment of the present invention provides a hydraulic oil heat exchange system, for example, for use in operation machinery such as concrete pumping equipment, the hydraulic oil heat exchange system includes a first oil path 1, a first heat exchange device 2 and a second heat exchange device 3, the first oil path 1 sequentially passes through the first heat exchange device 2 and the second heat exchange device 3 and is connected to an oil tank 72; the first heat exchange device 2 and the second heat exchange device 3 are one of an air cooling device and a liquid cooling device, and the second heat exchange device 3 is the other one of the air cooling device and the liquid cooling device.
That is to say, the first heat exchange device 2 is an air cooling device, and the second heat exchange device 3 is a liquid cooling device, or the first heat exchange device 2 is a liquid cooling device, and the second heat exchange device 3 is an air cooling device.
It should be noted that, in this specification, the plurality of oil passages of the devices and/or pipelines having the function of conveying hydraulic oil may be collectively described as the first oil passage 1, and in the case of no specific description, a person skilled in the art should be able to correctly understand the devices and/or pipelines having the function of conveying hydraulic oil indicated by the first oil passage 1 in combination with the description before and after the specification, and understand the meaning of "passing" of the first oil passage 1 through the first heat exchange device 2 and the second heat exchange device 3 in sequence according to the specific structures of the first heat exchange device 2 and the second heat exchange device 3.
Illustratively, the air cooling device is a fan, and the first oil path 1 includes an oil path section adjacent to the fan.
Exemplarily, the air cooling device is an air cooler, the air cooler includes a liquid inlet and a liquid outlet, a structure favorable for heat dissipation, such as a fin-shaped heat dissipation structure, is disposed on the air cooler, hydraulic oil flows into the air cooler through the liquid inlet and flows out of the air cooler through the liquid outlet, and at this time, the first oil path 1 is understood to include at least an oil path portion of the air cooler. At this time, the air cooler may also include a fan that blows or draws air to facilitate heat exchange at the fin-shaped heat dissipation structure. Other structures related to the oil passages or pipelines are similar and will not be described in detail here.
It should be noted that, when in actual use, first oil circuit 1 is kept away from the one end of oil tank 72 and the position of hydraulic system intercommunication do not regard as the restriction, form endless oil return passage can, will with in this description first oil circuit 1's one end with hydraulic system's time oil pipe 73 intercommunication, first oil circuit 1's the other end with oil tank 72 intercommunication, the hydraulic oil that returns oil pipe 73 flows in first oil circuit 1 back passes through in proper order first heat transfer device 2 with second heat transfer device 3 flows in after carrying out the heat exchange oil tank 72, and first heat transfer device 2 explains for the example of liquid cooling device, second heat transfer device 3 is the air cooling device the contents of the utility model, however, it is not limited to this.
The advantage that sets up like this lies in, first oil circuit 1 passes through in proper order first heat transfer device 2 with second heat transfer device 3 makes hydraulic system's hydraulic oil can pass through multistage cooling, for example can pass through liquid cooling and air-cooled heat transfer cooling in proper order, and its heat transfer is fast, can satisfy the heat transfer demand of hydraulic system's hydraulic oil under high-power, the heavy load.
As shown in fig. 1, in the embodiment of the present invention, the present invention further includes a second oil path 4 and a three-way valve 53, the first oil path 1 includes a third oil path 11 passing through the first heat exchange device 2 and a fourth oil path 12 passing through the second heat exchange device 3, and the third oil path 11 and the fourth oil path 12 are communicated through the three-way valve 53; one end of the second oil passage 4 communicates with the three-way valve 53, and the other end of the second oil passage 4 is adapted to communicate with the oil tank 72.
As shown in fig. 1, the other end of the second oil passage 4 is adapted to communicate with the oil tank 72, and may directly communicate with the oil tank 72, or may communicate with one end of the fourth oil passage 12 away from the three-way valve 53 so as to communicate with the oil tank 72.
At this time, when the oil temperature of the hydraulic oil in the hydraulic system is too high, the three-way valve 53 controls the second oil path 4 to be closed or the opening of the inlet of the second oil path to be reduced, so that the flow of the hydraulic oil flowing through the second oil path 4 is reduced, the hydraulic oil passing through the second heat exchange device 3 is increased, and the heat exchange is accelerated and/or the heat exchange amount is increased.
In contrast to the above-mentioned arrangement in which the other end of the second oil passage 4 is adapted to communicate with the oil tank 72, the other end of the second oil passage 4 may communicate with an end of the third oil passage 11 away from the three-way valve 53, and will not be described in detail here.
This arrangement is advantageous in that the three-way valve 53 can function to well divert, merge or close one of the hydraulic oil flow paths (e.g., the second oil path 4), and can rapidly switch the flow path of the hydraulic oil or adjust the flow rate of the hydraulic oil according to the heat exchange amount.
As shown in fig. 1, the temperature monitoring device further includes a first temperature detecting device 61 and a controller, the three-way valve 53 is an electric three-way valve, and the controller is respectively connected with (e.g., electrically connected to) the first temperature detecting device 61 and the electric three-way valve in a communication manner; when the other end of the second oil path 4 is communicated with the oil tank 72 (for example, the other end of the second oil path 4 is communicated with one end of the fourth oil path 12 far from the three-way valve 53), the first temperature detection device 61 is disposed on the third oil path 11 and between the first heat exchange device 2 and the three-way valve 53
At this time, the temperature detected by the first temperature detecting device 61 is the temperature of the hydraulic oil after heat exchange and cooling by the first heat exchanging device 2, so that a subsequent cooling strategy of the hydraulic oil can be controlled, for example, opening or closing of the second oil path 4 and the fourth oil path 12 or the flow rate of the hydraulic oil is determined.
Specifically, a first connection port of the three-way valve 53 communicates with a hydraulic oil inflow end of the third oil passage 11, and a second connection port and a third connection port of the three-way valve 53 communicate with the second oil passage 4 and the fourth oil passage 12, respectively. The three-way valve 53 is an L-shaped electric three-way ball valve, and the controller controls the operation of the L-shaped electric three-way ball valve according to the data of the first temperature detection device 61.
For example, when the detection data of the first temperature detection device 61 is high, for example, greater than or equal to a second preset temperature T2, the second connection port of the L-shaped electric three-way ball valve is controlled to be closed and the third connection port is controlled to be opened, so that the second oil path 4 is closed, the fourth oil path 12 is opened, the hydraulic oil in the oil return pipe 73 flows into the oil tank 72 through the third oil path 11 and the fourth oil path 12, and at this time, the hydraulic oil in the oil return pipe 73 is cooled through the secondary heat exchange of the first heat exchange device 2 and the second heat exchange device 3, and the heat exchange amount is large, and the cooling speed is high; for example, the oil-cooling device is suitable for the occasions that the working load of the working machine is large and the oil temperature is increased sharply.
For example, when the detection data of the first temperature detection device 61 is low, for example, less than a first preset temperature T1, the second connection port of the L-shaped electric three-way ball valve is controlled to be opened and the third connection port is controlled to be closed, so that the second oil path 4 is opened, the fourth oil path 12 is closed, the hydraulic oil in the oil return pipe 73 flows into the oil tank 72 through the third oil path 11 and the second oil path 4, and at this time, the hydraulic oil in the oil return pipe 73 is cooled only through the first-stage heat exchange of the first heat exchange device 2, and the heat exchange amount is small, the cooling speed is slow, and the energy loss is prevented from being too large. Illustratively, the second predetermined temperature T2 is greater than or equal to the first predetermined temperature T1, e.g., the difference between T2 and T1 is 0-20 deg.C, e.g., 2-15 deg.C, 3-8 deg.C, and will not be described in detail herein.
In some embodiments, the three-way valve 53 can further adjust the sizes of the openings of the second connection port and the third connection port, for example, the three-way valve 53 is a T-shaped electric three-way ball valve, when the detection data of the first temperature detecting device 61 is greater than or equal to a third preset temperature T3 and is less than the second preset temperature T2, the controller controls the openings of the second connection port and the third connection port to be both opened, after the hydraulic oil in the oil return pipe 73 is subjected to heat exchange cooling by the first heat exchanging device 2, part (for example, half) of the hydraulic oil is subjected to secondary heat exchange cooling by the second heat exchanging device 3 and then flows into the oil tank 72, and part (for example, half) of the hydraulic oil is directly flowed into the oil tank 72 through the second oil passage 4, at this time, the heat exchange amount is medium, the cooling speed is stable, and the working load of the working machine is relatively suitable for being stably operated And the oil temperature rises more stably. Illustratively, the difference between T2 and T3 is 0-15 deg.C, e.g., 2-8 deg.C, and the third predetermined temperature is greater than the first predetermined temperature, illustratively, the difference between T3 and T1 is 0-10 deg.C, e.g., 3-6 deg.C.
In some embodiments, when the other end of the second oil path 4 is communicated with the end of the third oil path 11 far from the three-way valve 53 (not shown in the figure), the second oil path 4 forms a bypass oil path connected in parallel with the third oil path 11, in this case, the first temperature detection device 61 is disposed at the end of the third oil path 11 far from the fourth oil path 12, and the communication point of the third oil path 11 and the second oil path 4 is located between the first temperature detection device 61 and the first heat exchange device 2. That is to say, the hydraulic oil firstly passes through the first temperature detection device 61 to detect the temperature, so that the following cooling strategy of the hydraulic oil can be controlled, for example, the hydraulic oil directly flows into the fourth oil path 12 through the second oil path 4 and flows into the oil tank 72 after exchanging heat at the second heat exchange device 3, or the hydraulic oil firstly passes through the first temperature detection device 61 to detect the temperature, flows into the fourth oil path 12 after exchanging heat at the first heat exchange device 2 of the third oil path 11, and flows into the oil tank 72 after being cooled by the secondary heat exchange of the second heat exchange device 3, and the control strategies of the two setting modes are similar and will not be described in detail here.
The advantage that sets up like this lies in, through setting up first temperature-detecting device 61 can acquire the temperature of hydraulic oil before the reposition of redundant personnel position among the hydraulic oil heat transfer system, the controller can be according to the detection data (the oil temperature of hydraulic oil) of first temperature-detecting device 61 in time adjusts to the control strategy of electronic three way valve, adjusts hydraulic heat transfer system's heat transfer volume and/or heat transfer speed, makes the oil temperature of the hydraulic system of operation machinery is in a comparatively stable and suitable state, and its reliability is high, and the practicality is strong.
As shown in fig. 1 and fig. 2, in the above embodiment, the first heat exchanging device 2 is the liquid cooling device, the liquid cooling device includes a water tank 71, and the second heat exchanging device 3 is the air cooling device.
The benefit that sets up like this lies in, the liquid cooling device does water tank 71, the preferred process of hydraulic oil that gets into hydraulic oil heat transfer system the heat transfer of water tank 71 is avoided to a certain extent the air cooling device is opened the energy waste who causes always, plays energy-conserving effect (energy-conserving effect when the other end of second oil circuit 4 and oil tank 72 intercommunication is better), in addition, adopts common water as the liquid cooling medium, is convenient for draw materials, and is with low costs, and the practicality is strong.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the heat exchanger further includes a circulating water path 8, two ends of the circulating water path 8 are adapted to be respectively communicated with the water tank 71, the circulating water path 8 includes a second heat dissipation device 81, and the second heat dissipation device 81 is adapted to exchange heat with the liquid oil tank 72. Thereby cooling the hydraulic oil in the oil tank 72.
For example, the second heat dissipation device 81 may be a water pipe passing through the oil tank 72, the water pipe may be a serpentine water pipe formed by bending, and the second heat dissipation device 81 may include a fin structure and/or a coil structure.
The benefit that sets up like this lies in, through circulation water route 8's setting utilizes water in the water tank 71 has formed and can have circulated right oil tank 72 carries out radiating water route in the operation machinery working process, can continuously right hydraulic oil assists the cooling, simple structure, the practicality is strong.
As shown in fig. 1 and fig. 2, in the embodiment of the present invention, the water pump 9, the second temperature detecting device 62, and the controller are further included, the water pump 9 is disposed on the circulating water path 8, the second temperature detecting device 62 is disposed in the oil tank 72, and the controller is in communication connection, for example, electrically connected, with the water pump 9 and the second temperature detecting device 62, respectively.
In some embodiments, when the hydraulic system does not work or the working machine is in an initial starting state, hydraulic oil in the hydraulic system does not form a loop, the first heat exchanging device 2 and the second heat exchanging device 3 cannot effectively cool the hydraulic oil, and the controller controls the water pump 9 to work to cool the hydraulic oil in the oil tank 72.
For example, when the temperature of the hydraulic oil in the oil tank 72 is greater than a fourth preset temperature T4, the controller controls the water pump 9 to operate to drive the water in the circulating water path 8 to flow so as to cool the hydraulic oil of the hydraulic system, wherein the fourth preset temperature T4 is greater than or equal to the second preset temperature T2, and the difference between the fourth preset temperature T4 and the second preset temperature T2 is 0-10 ℃, for example, 2-8 ℃ or 3-5 ℃. Of course, the water in the circulation water path 8 may not flow by controlling the relief valve of the water pump 9, which will not be described in detail herein.
The advantage that sets up like this can be passed through the water pump 9 accelerates the flow of circulation water route 8 normal water, the controller can be according to the detected data of second temperature-detecting device 62 in time adjust right the control strategy of water pump 9, for example, when hydraulic system starts or does not form the return circuit, perhaps when the temperature of the hydraulic oil of oil tank 72 is too high, control water pump 9 starts the drive water and forms the circulation, the reinforcing circulation water route 8 is to the cooling effect of hydraulic oil, perhaps, the supplementary oil temperature that reduces hydraulic system middle hydraulic oil, avoids the oil temperature of hydraulic oil too high.
As shown in fig. 1, in an embodiment of the present invention, the first oil path 1 includes a first heat dissipation device 111, the first heat dissipation device 111 is adapted to be disposed inside the liquid cooling device, and the first heat dissipation device 111 includes a fin structure and/or a coil structure.
It should be noted that the liquid cooling device may also be other structures storing liquid media, which absorb heat of the hydraulic oil in the first heat sink 111 and dissipate the absorbed heat to the outside or for other purposes, and will not be described in detail herein.
The advantage of setting up like this, first heat abstractor 111's surface area is big, and its radiating rate is fast, simple structure, and the practicality is strong.
As shown in fig. 2, in the above embodiment, unlike the way that the three-way valve 53 adjusts the opening, closing or flow rate of the parallel branch, the hydraulic oil heat exchange system further includes a first throttling device 51 and a second throttling device 52; the first oil passage 1 includes a third oil passage 11 passing through the first heat exchange device 2 and a fourth oil passage 12 passing through the second heat exchange device 3 and communicating with the third oil passage 11; both ends of the second oil passage 4 are respectively communicated with both ends of the third oil passage 11, and the first throttle device 51 and the second throttle device 52 are respectively disposed on the third oil passage 11 and the second oil passage 4.
The first throttle device 51 and the second throttle device 52 may be throttle valves, and the oil amount of the hydraulic oil in the third oil path 11 may be adjusted by adjusting the first throttle device 51 to close the third oil path 11 or open the third oil path 11; the second oil path 4 can be closed or the second oil path 4 can be opened by adjusting the second throttling device 52, and the oil amount of the hydraulic oil in the second oil path 4 can also be adjusted, that is, the heat exchange amount of the hydraulic oil heat exchange system can be adjusted by adjusting the first throttling device 51 and the second throttling device 52. This adjustment has a similar effect to the adjustment of the three-way valve 53.
In this case, the first temperature detection device 61 and the controller may be provided, specifically, the first temperature detection device 61 may be provided at an end of the third oil passage 11 that is away from the fourth oil passage 12, and a communication point between the third oil passage 11 and the second oil passage 4 may be located between the first temperature detection device 61 and the first heat exchange device 2. For example, the hydraulic oil in the third oil path 11 sequentially passes through the first temperature detection device 61, the communication position of the third oil path 11 and the second oil path 4, and the first heat exchange device 2, and then enters the fourth oil path 12, or the hydraulic oil in the third oil path 11 sequentially passes through the first temperature detection device 61, the communication position of the third oil path 11 and the second oil path 4, and then enters the fourth oil path 12.
Similarly to the arrangement manner of the three-way valve 53, two ends of the second oil passage 4 may also be respectively communicated with two ends of the fourth oil passage 12, and the first throttling device 51 and the second throttling device 52 are respectively arranged on the fourth oil passage 12 and the second oil passage 4; in this case, the first temperature detection device 61 is disposed on the third oil passage 11 and between the communication point between the third oil passage 11 and the fourth oil passage 12 and the first heat exchanger 2.
The advantage of this arrangement is that the first throttling device 51 and the second throttling device 52 can respectively adjust the flow rates of the hydraulic oil of the two branches, which is beneficial to accurately adjusting the flow rates of the hydraulic oil, and the oil temperature of the hydraulic system is more stable; moreover, the temperature of the hydraulic oil in the hydraulic oil heat exchange system before the shunting position can be obtained through the first temperature detection device 61, and the controller can timely adjust the control strategies of the first throttling device 51 and the second throttling device 52 according to the detection data (the oil temperature of the hydraulic oil) of the first temperature detection device 61, so that the heat exchange amount and/or the heat exchange speed of the hydraulic heat exchange system are adjusted, and the oil temperature of the hydraulic oil of the hydraulic system of the working machine is in a stable and appropriate state.
Another embodiment of the utility model provides an operating machine, operating machine includes any one of the aforesaid hydraulic oil heat transfer system. The work machine may be, for example, a concrete pumping plant, a crane, a fire engine, etc. The working machine has all the beneficial effects of the hydraulic oil heat exchange system, and the detailed description is omitted here.
Specifically, the operation machinery includes the washing water tank, hydraulic oil heat transfer system's liquid cooling device does the washing water tank. For example, the water tank 71 is the washing water tank.
The benefit that sets up like this lies in, operation machinery can enough be used for wasing including wasing the water tank, simultaneously, utilizes the heat transfer that washs the water tank and can realize hydraulic oil has been avoided establishing in addition the liquid cooling device plays energy-conserving effect, in addition, can also utilize to a certain extent hydraulic oil heat transfer system is right water in the washing water tank heaies up, is convenient for wash, simple structure, and the practicality is strong.
Although the present disclosure has been described above, the scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and such changes and modifications will fall within the scope of the present invention.
Claims (10)
1. The hydraulic oil heat exchange system is characterized by comprising a first oil way (1), a first heat exchange device (2) and a second heat exchange device (3), wherein the first oil way (1) is connected with an oil tank (72) through the first heat exchange device (2) and the second heat exchange device (3) in sequence; the first heat exchange device (2) is one of an air cooling device and a liquid cooling device, and the second heat exchange device (3) is the other one of the air cooling device and the liquid cooling device.
2. The hydraulic oil heat exchange system according to claim 1, characterized by further comprising a second oil path (4) and a three-way valve (53), wherein the first oil path (1) comprises a third oil path (11) passing through the first heat exchange device (2) and a fourth oil path (12) passing through the second heat exchange device (3), and the third oil path (11) and the fourth oil path (12) are communicated through the three-way valve (53); one end of the second oil path (4) is communicated with the three-way valve (53), and the other end of the second oil path (4) is suitable for being communicated with the oil tank (72), or the other end of the second oil path (4) is communicated with one end, far away from the three-way valve (53), of the third oil path (11).
3. The hydraulic oil heat exchange system according to claim 2, further comprising a first temperature detection device (61) and a controller, wherein the three-way valve (53) is an electric three-way valve, and the controller is in communication connection with the first temperature detection device (61) and the electric three-way valve respectively;
when the other end of the second oil path (4) is communicated with the oil tank (72), the first temperature detection device (61) is arranged on the third oil path (11) and is positioned between the first heat exchange device (2) and the three-way valve (53);
when the other end of the second oil path (4) is communicated with one end, far away from the three-way valve (53), of the third oil path (11), the first temperature detection device (61) is arranged at one end, far away from the fourth oil path (12), of the third oil path (11), and the communication position of the third oil path (11) and the second oil path (4) is located between the first temperature detection device (61) and the first heat exchange device (2).
4. The hydraulic oil heat exchange system according to claim 1, characterized by further comprising a second oil path (4), a first throttling device (51), a second throttling device (52), a first temperature detection device (61) and a controller, wherein the controller is in communication connection with the first temperature detection device (61), the first throttling device (51) and the second throttling device (52), respectively; the first oil path (1) comprises a third oil path (11) passing through the first heat exchange device (2) and a fourth oil path (12) passing through the second heat exchange device (3) and communicated with the third oil path (11);
two ends of the second oil path (4) are respectively communicated with two ends of the fourth oil path (12), the first throttling device (51) and the second throttling device (52) are respectively arranged on the fourth oil path (12) and the second oil path (4), and the first temperature detection device (61) is arranged on the third oil path (11) and is positioned between the communication position of the third oil path (11) and the fourth oil path (12) and the first heat exchange device (2);
or two ends of the second oil path (4) are respectively communicated with two ends of the third oil path (11), the first throttling device (51) and the second throttling device (52) are respectively arranged on the third oil path (11) and the second oil path (4), the first temperature detection device (61) is arranged at one end, far away from the fourth oil path (12), of the third oil path (11), and the communication position of the third oil path (11) and the second oil path (4) is located between the first temperature detection device (61) and the first heat exchange device (2).
5. Hydraulic oil heat exchange system according to any one of claims 1 to 4, characterized in that said first heat exchange means (2) is said liquid cooling means, said liquid cooling means comprises a water tank (71), and said second heat exchange means (3) is said air cooling means.
6. The hydraulic oil heat exchange system according to claim 5, characterized by further comprising a circulating water path (8), wherein two ends of the circulating water path (8) are respectively communicated with the water tank (71), the circulating water path (8) comprises a second heat dissipation device (81), and the second heat dissipation device (81) is adapted to exchange heat with the oil tank (72).
7. The hydraulic oil heat exchange system according to claim 6, further comprising a water pump (9), a second temperature detection device (62) and a controller, wherein the water pump (9) is arranged on the circulating water path (8), the second temperature detection device (62) is arranged in the oil tank (72), and the controller is in communication connection with the water pump (9) and the second temperature detection device (62) respectively.
8. The hydraulic oil heat exchange system according to any one of claims 1 to 4, wherein the first oil path (1) comprises a first heat sink (111), the first heat sink (111) is adapted to be disposed inside the liquid cooling device, and the first heat sink (111) comprises a fin structure and/or a coil structure.
9. A working machine comprising a hydraulic oil heat exchange system as claimed in any one of claims 1 to 8.
10. The work machine of claim 9, wherein said work machine includes a wash tank, and said liquid cooling means of said hydraulic oil heat exchange system is said wash tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023024964.XU CN213899483U (en) | 2020-12-14 | 2020-12-14 | Hydraulic oil heat exchange system and operation machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023024964.XU CN213899483U (en) | 2020-12-14 | 2020-12-14 | Hydraulic oil heat exchange system and operation machine |
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| Publication Number | Publication Date |
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| CN213899483U true CN213899483U (en) | 2021-08-06 |
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| CN202023024964.XU Active CN213899483U (en) | 2020-12-14 | 2020-12-14 | Hydraulic oil heat exchange system and operation machine |
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| CN (1) | CN213899483U (en) |
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