CN220818144U - Engineering machinery and thermal management system thereof - Google Patents
Engineering machinery and thermal management system thereof Download PDFInfo
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- CN220818144U CN220818144U CN202322318713.XU CN202322318713U CN220818144U CN 220818144 U CN220818144 U CN 220818144U CN 202322318713 U CN202322318713 U CN 202322318713U CN 220818144 U CN220818144 U CN 220818144U
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- 238000001816 cooling Methods 0.000 claims abstract description 164
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 56
- 230000017525 heat dissipation Effects 0.000 claims abstract description 41
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 230000000630 rising effect Effects 0.000 claims abstract description 5
- 238000010276 construction Methods 0.000 claims description 13
- 239000007788 liquid Substances 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 abstract description 5
- 238000009434 installation Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000003993 interaction Effects 0.000 abstract description 2
- 238000005553 drilling Methods 0.000 description 4
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000033228 biological regulation Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 238000007872 degassing Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Abstract
The utility model relates to the technical field of mechanical equipment, and particularly discloses engineering machinery and a thermal management system thereof, which are used for solving the problem of low reliability of the thermal management system of the engineering machinery. The thermal management system of the engineering machinery comprises a plurality of cooling circulation loops which are arranged in parallel, wherein each cooling circulation loop comprises a cooling module, a water pump and a heat dissipation module. The cooling module is used for radiating the heating module; the water pump is used for driving the heat exchange medium in the corresponding cooling circulation loop to flow; the heat dissipation modules of the cooling circulation loops are integrated, and the heat exchange medium with the temperature rising in each heat dissipation module is cooled by the common air cooling device. By using the thermal management system of the engineering machinery, the interaction between cooling loops is reduced, the heat exchange efficiency is high, the production, the installation and the after-sale maintenance are convenient, and the reliability of the system is improved. The utility model also discloses engineering machinery with the thermal management system, and the engineering machinery also has the technical effects.
Description
Technical Field
The utility model relates to the technical field of mechanical equipment, in particular to engineering machinery and a thermal management system thereof.
Background
Currently, conventional thermal management systems typically employ multiple systems in series-parallel, with connections between the multi-way valve control lines for cooling. However, the pipeline installation connection in a serial-parallel mode needs error proofing, and is inconvenient to install and maintain; when the on-off of the multi-way valve is controlled, the program is complex, so that the reliability of the whole machine thermal management is unstable; the cooling modules are required to meet different design requirements, such as flow, pressure resistance and heat dissipation capacity data, and the systems are mutually influenced, so that high temperature can be caused due to insufficient heat dissipation capacity, or the core of the cooling module is damaged, and therefore, the system reliability is low.
In summary, how to effectively solve the problem of low reliability of the thermal management system of the engineering machinery is a problem that needs to be solved by those skilled in the art at present.
Disclosure of utility model
In view of the above, the present utility model is directed to an engineering machine and a thermal management system thereof, which can effectively solve the problem of low reliability of the thermal management system of the engineering machine.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
a thermal management system for a work machine, comprising a plurality of cooling circulation loops arranged in parallel, each cooling circulation loop comprising:
the cooling module is used for radiating the heating module;
The water pump is used for driving the heat exchange medium in the corresponding cooling circulation loop to flow;
And the heat dissipation modules are integrated and arranged, and share an air cooling device to cool the heat exchange medium with the temperature rising in each heat dissipation module.
Optionally, in the thermal management system of an engineering machine, the cooling module includes a plurality of cooling branches, and multiple paths of valves respectively communicating with the cooling branches are respectively disposed in the cooling circulation loop and before and after the cooling module.
Optionally, in the thermal management system of the engineering machine, the multiple-way valve is a normally open valve.
Optionally, in the thermal management system of a construction machine, the cooling circulation loop includes at least two of a cooling circulation loop for radiating heat from a charger of the construction machine, a cooling circulation loop for radiating heat from a motor of the construction machine, and a cooling circulation loop for radiating heat from a driver of the construction machine.
Optionally, in the thermal management system of an engineering machine, the cooling circulation loop for cooling the motor includes a first branch and a second branch, the cooling module of the cooling circulation loop for cooling the motor includes a first sub-cooling module disposed in the first branch and a second sub-cooling module disposed in the second branch, the first sub-cooling module is used for cooling a platform motor of the engineering machine, and the second sub-cooling module is used for cooling a power head motor of the engineering machine.
Optionally, in the thermal management system of an engineering machine, the water pump of the cooling circulation loop for radiating heat from the motor includes a first water pump disposed in the first branch and a second water pump disposed in the second branch.
Optionally, in the thermal management system of the engineering machine, a cooling circulation loop for radiating the charger and a cooling circulation loop for radiating the driver are connected with a first expansion water tank; and the cooling circulation loop for radiating the heat of the motor is connected with a second expansion water tank.
Optionally, in the thermal management system of the engineering machine, a volume of the first expansion tank is not less than 20% of a total volume of heat exchange medium in the thermal management system; and/or the volume of the second expansion water tank is not smaller than the total volume of a power head motor water cavity of the engineering machine, the total volume of a water pipe of the power head motor and the sum of a preset allowance from above the liquid level of the second expansion water tank.
Optionally, in the thermal management system of the engineering machinery, the air cooling device comprises an electrodeless speed regulation electronic fan.
The heat management system of the engineering machinery comprises a plurality of cooling circulation loops which are arranged in parallel, wherein each cooling circulation loop comprises a cooling module, a water pump and a heat dissipation module. The cooling module is used for radiating the heating module; the water pump is used for driving the heat exchange medium in the corresponding cooling circulation loop to flow; the heat dissipation modules of the cooling circulation loops are integrated, and the heat exchange medium with the temperature rising in each heat dissipation module is cooled by the common air cooling device.
By applying the heat management system of the engineering machinery, which is provided by the utility model, the independent cooling circulation loops are respectively arranged corresponding to the heating modules, and the heat management system has the beneficial effects that: on the one hand, the interaction between the cooling loops is reduced, so that the system reliability is improved. On the other hand, the independent cooling circulation loop is provided with an independent heat dissipation module, so that the heat exchange efficiency is high, and the use reliability of the heating module is improved, thereby improving the use reliability of the whole engineering machinery. And the cooling circulation loop is independently arranged, the pipeline arrangement is simple, the position of a problem point is easier to identify during overhaul/inspection, other parts are not required to be disassembled during maintenance, and the production, the installation and the after-sale maintenance are convenient. In addition, the cooling circulation loops are independently arranged, so that the water pumps with corresponding specifications can be selected in each cooling circulation loop according to the requirements, the pump lift, the flow and the system pressure resistance under different requirements are adapted, and the reliability is improved.
In order to achieve the above object, the present utility model also provides a construction machine comprising any one of the above thermal management systems. Because the thermal management system has the technical effects, the engineering machinery with the thermal management system should have the corresponding technical effects.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a thermal management system of a construction machine according to an embodiment of the present utility model.
The figures are marked as follows:
The cooling module 10, the water pump 20, the heat radiation module 30, the multi-way valve 40, the first expansion water tank 50, the second expansion water tank 60, the first sub-cooling module 11, the second sub-cooling module 12, the first water pump 21 and the second water pump 22; the cooling circulation loop 100 for radiating heat from the charger, the cooling circulation loop 200 for radiating heat from the motor, and the cooling circulation loop 300 for radiating heat from the driver.
Detailed Description
The embodiment of the utility model discloses engineering machinery and a thermal management system thereof, which are used for reducing the mutual influence among cooling loops and improving the reliability of the system.
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a thermal management system of a construction machine according to an embodiment of the utility model.
In one embodiment, the thermal management system of the engineering machinery provided by the utility model comprises a plurality of cooling circulation loops arranged in parallel, wherein each cooling circulation loop comprises a cooling module 10, a water pump 20 and a heat dissipation module 30. The cooling module 10 is used for dissipating heat of a heating module, and the heating module can be a charger, a motor or a driver of engineering machinery. The cooling module 10 may specifically adopt a structure such as a pipeline for exchanging heat with the heating module, a cavity, etc., such as a pipeline coiled around the heating module or a cavity wrapped around the heating module. The water pump 20 is used for driving the heat exchange medium in the corresponding cooling circulation loop to flow. The heat exchange medium in the present utility model may include a cooling liquid such as water, or may include other fluid capable of exchanging heat. The heat dissipation modules 30 of the cooling circulation loops are integrally arranged, and the heat exchange medium with the temperature rising in each heat dissipation module 30 is cooled by the common air cooling device. It can be understood that the heat dissipation modules 30 of the cooling circulation loop are integrated, which means that the distribution positions of the heat dissipation modules 30 are integrated, so that the air cooling device can be shared for cooling, and the heat exchange media inside the heat dissipation modules 30 are not communicated and still circulate independently. Taking one cooling circulation loop as an example, the heat exchange medium in the cooling circulation loop circularly flows under the action of the water pump 20 and exchanges heat with the heating module when flowing through the cooling module 10, so that the heat of the heating module is reduced, and the temperature of the heat exchange medium in the cooling module 10 rises due to the absorption of the heat of the heating module. When the high-temperature heat exchange medium flows to the heat radiation module 30, the temperature is reduced under the action of the air cooling device, the low-temperature cooling medium continues to flow in the pipeline and flows through the cooling module 10 again, and the circulation is performed to cool the heat generation module.
By applying the heat management system of the engineering machinery, which is provided by the utility model, the independent cooling circulation loops are respectively arranged corresponding to the heating modules, so that on one hand, the mutual influence among the cooling loops is reduced, and the reliability of the system is improved. On the other hand, the independent cooling circulation loop is provided with the independent heat dissipation module 30, so that the heat exchange efficiency is high, and the use reliability of the heating module is improved, thereby improving the use reliability of the whole engineering machinery. And the cooling circulation loop is independently arranged, the pipeline arrangement is simple, the position of a problem point is easier to identify during overhaul/inspection, other parts are not required to be disassembled during maintenance, and the production, the installation and the after-sale maintenance are convenient. In addition, the cooling circulation loops are independently arranged, so that the water pumps 20 with corresponding specifications can be selected in each cooling circulation loop according to the requirements, thereby being suitable for the lifts, the flow and the system pressure resistance under different requirements and improving the reliability. Furthermore, each heat dissipation module 30 is integrated and arranged, and can share the air cooling device, so that the structure is simplified, and the space occupation is saved.
In one embodiment, the cooling module 10 includes a plurality of cooling branches, and a multi-way valve 40 respectively communicating with each cooling branch is disposed in each cooling circulation loop before and after the cooling module 10. Specifically, the heat dissipation module 30, the water pump 20, the multi-way valve 40, the cooling module 10 and the multi-way valve 40 in the cooling circulation loop are sequentially arranged in series. That is, the flow path may be divided into a plurality of cooling branches by the multi-way valve 40, each cooling branch is used for cooling the heat generating module, and the heat exchange medium with increased temperature is converged by the multi-way valve 40 to flow into the heat dissipating module 30. The whole adopts the total distribution and total form arrangement, is convenient for layout, and can be fully used for heat exchange of the heating module.
Further, the multiplex valve 40 is a normally open valve. The number of the multiple-way valve 40 is set correspondingly according to the number of the cooling branches. The multiplex valve 40 is normally open, i.e. it is used to split or merge the flow paths.
In one embodiment, the cooling circulation loop includes at least two of a cooling circulation loop 100 for dissipating heat from a charger of the work machine, a cooling circulation loop 200 for dissipating heat from a motor of the work machine, and a cooling circulation loop 300 for dissipating heat from a drive of the work machine. The engineering machinery can be an electric rotary drilling rig, and the heating modules of the engineering machinery generally comprise a charger, a motor, a driver and the like, so that the corresponding cooling circulation loops are respectively arranged corresponding to the corresponding heating modules, and the heat dissipation efficiency and the system reliability are improved. In other embodiments, the engineering machine is not limited to an electric rotary drilling machine, and cooling circulation loops can be respectively arranged corresponding to different heating modules of the engineering machine according to the type of the specific engineering machine.
In one embodiment, the cooling circulation loop 200 for dissipating heat from the motor includes a first branch and a second branch, the cooling module 10 of the cooling circulation loop 200 for dissipating heat from the motor includes a first sub-cooling module 11 disposed in the first branch and a second sub-cooling module 12 disposed in the second branch, the first sub-cooling module 11 is used for dissipating heat from a platform motor of the engineering machine, and the second sub-cooling module 12 is used for dissipating heat from a power head motor of the engineering machine. It will be appreciated that the first branch and the second branch are arranged in parallel and are connected to the inlet and the outlet of the heat dissipation module 30 of the cooling circulation loop 200 for dissipating heat from the motor, respectively. The heat exchange medium flows out of the heat dissipation module 30 and then is split into a first branch and a second branch, the heat exchange medium in the first branch flows through the first sub-cooling module 11 and then flows back to the heat dissipation module 30, and the heat exchange medium in the second branch flows through the second sub-cooling module 12 and then flows back to the heat dissipation module 30. Taking an electric rotary drilling rig as an example, the motor comprises a platform motor and a power head motor, a cooling circulation loop corresponding to heat dissipation of the motor is provided, heat exchange medium flows out of the heat dissipation module 30 and then is split into a first branch and a second branch, the heat exchange medium in the first branch flows through the first sub-cooling module 11 so as to cool the platform motor and then flows back to the heat dissipation module 30, and the heat exchange medium in the second branch flows through the second sub-cooling module 12 so as to cool the power head motor and then flows back to the heat dissipation module 30. That is, when the heating module includes a plurality of heating sub-devices, parallel branches may be respectively provided corresponding to the heating sub-devices to cool the heating sub-devices separately.
In one embodiment, the water pump 20 of the cooling circulation circuit 200 for dissipating heat from the motor includes a first water pump 21 disposed in a first branch and a second water pump 22 disposed in a second branch. Namely, the first water pump 21 and the second water pump 22 are respectively arranged corresponding to the first branch and the second branch so as to realize independent driving of heat exchange media in the first branch and the second branch, thereby ensuring the flow of the first branch and the second branch. In other embodiments, the water pump 20 may be provided in the main circuit as desired.
In one embodiment, the engineering machine is an electric rotary drilling machine, a power head motor is arranged on a power head, and the second water pump 22 is selected according to the lift determined by the upper limit of the power head and the total cooling flow requirement of the power head motor. Specifically, the waterway arrangement is from the first water pump 21 to the power head along with the cable to the power head motor, the multi-way valve 40 is arranged on the power head mounting bracket, the multi-way valve 40 is used for dividing the flow path into a plurality of branches to the power head motor, and the multi-way valve 40 is used for merging the cooled flow paths to flow back to the heat dissipation module 30 of the platform along with the pipeline. The flow path is used for forcibly degassing the power head motor by using the pressure of the second water pump 22 in the running process, so that the water path in the power head motor is filled with heat exchange medium, and the cooling efficiency is improved.
In one embodiment, a first expansion tank 50 is connected to the cooling circulation loop 100 for dissipating heat from the battery and the cooling circulation loop 300 for dissipating heat from the drive; a second expansion tank 60 is connected to the cooling circulation circuit 200 for radiating heat from the motor. Namely, the cooling circulation loop 100 for radiating heat from the charger and the cooling circulation loop 300 for radiating heat from the driver share the same expansion tank for supplementing heat exchange medium to the corresponding cooling circulation loop system. The first expansion tank 50 may be specifically disposed between the heat dissipation module 30 and the water pump 20.
In one embodiment, the volume of the first expansion tank 50 is not less than 20% of the total volume of heat exchange medium within the thermal management system. Since the cooling circulation loop 100 for heat dissipation from the charger and the cooling circulation loop 300 for heat dissipation from the driver have a small demand for heat exchange medium, the volume of the first expansion tank 50 is not less than 20% of the total volume of the heat exchange medium in the thermal management system, and thus the demand can be satisfied.
In one embodiment, the volume of the second expansion tank 60 is not less than the sum of the total volume of the power head motor water chamber of the construction machine, the total volume of the water pipe of the power head motor above the liquid surface of the second expansion tank 60, and the preset margin. The volume of the second expansion water tank 60 is equal to or more than the total volume of a power head motor water cavity of the engineering machinery, the total volume of a water pipe of the power head motor and the preset allowance from above the liquid surface of the second expansion water tank 60. The preset margin may specifically be 5% of the total volume of heat exchange medium in the thermal management system. By setting the volume of the second expansion tank 60 in the above range, the total heat exchange medium demand of the cooling circulation circuit 200 for radiating heat from the motor can be ensured.
In one embodiment, the first expansion tank 50 and the second expansion tank 60 are disposed above the corresponding heat dissipation module 30 and close to the heat dissipation module 30, so as to facilitate replenishment of heat exchange medium.
In one embodiment, the air cooling device comprises an infinitely variable speed electronic fan. The stepless speed regulating electronic fan can correspondingly regulate speed according to the cooling requirement of the high-temperature heat exchange medium, so that the temperature of the heat exchange medium is controlled more accurately, and the cooling precision of the heat management system is improved. And the stepless speed regulating electronic fan can regulate the switch and the air volume according to signals given by the actual operation of the whole machine, thereby reducing the energy consumption. The specific arrangement mode and the number of the stepless speed regulating electronic fans can be matched with the heat dissipation capacity setting of the actual cooling module 10.
In one embodiment, the heat dissipation modules 30 of the respective cooling circulation circuits are arranged in parallel and cooled by means of air suction. The heat dissipation module 30 may adopt a cooling water tank, a heat dissipation coil pipe, and the like. Of course, the cooling water tanks or cooling coils of the respective cooling circulation circuits should be provided separately and may be arranged in parallel.
In one embodiment, each water pump 20 should meet the total flow, head, and calculate the delay loss of each cooling module 10, and the pressure at the water pipe outlet does not exceed the maximum pressure that can be borne by the cooling module 10. Each multiplex valve 40 satisfies the number of passes of all heat exchange medium through each cooling module 10. In addition, each water pump 20 can adjust the switch and the flow according to the signals given by the actual operation of the whole machine, so that the energy consumption is reduced.
In one embodiment, each water pump 20 is mounted at the lowest level of the platform of the work machine to ensure efficient flow of heat exchange medium within the cooling circuit.
Based on the thermal management system provided in the above embodiment, the present utility model further provides an engineering machine, which includes any one of the thermal management systems in the above embodiments. Since the heat management system in the above embodiment is adopted in the construction machine, the beneficial effects of the construction machine are as described in the above embodiment.
In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A thermal management system for a work machine, comprising a plurality of cooling circulation loops arranged in parallel, each cooling circulation loop comprising:
the cooling module is used for radiating the heating module;
The water pump is used for driving the heat exchange medium in the corresponding cooling circulation loop to flow;
And the heat dissipation modules are integrated and arranged, and share an air cooling device to cool the heat exchange medium with the temperature rising in each heat dissipation module.
2. The thermal management system of a construction machine according to claim 1, wherein the cooling module comprises a plurality of cooling branches, and a multi-way valve respectively communicated with the cooling branches is respectively arranged in the cooling circulation loop before and after the cooling module.
3. The thermal management system of a work machine of claim 2, wherein the multiplex valve is a normally open valve.
4. A thermal management system of a work machine according to any one of claims 1-3, wherein the cooling circulation loop comprises at least two of a cooling circulation loop for dissipating heat from a charger of the work machine, a cooling circulation loop for dissipating heat from a motor of the work machine, and a cooling circulation loop for dissipating heat from a drive of the work machine.
5. The thermal management system of a work machine of claim 4, wherein the cooling circuit for dissipating heat from the electric machine comprises a first leg and a second leg, and the cooling module of the cooling circuit for dissipating heat from the electric machine comprises a first sub-cooling module disposed within the first leg and a second sub-cooling module disposed within the second leg, the first sub-cooling module being configured to dissipate heat from a platform motor of the work machine, and the second sub-cooling module being configured to dissipate heat from a power head motor of the work machine.
6. The thermal management system of a work machine of claim 5, wherein the water pump of the cooling circulation loop for dissipating heat from the electric machine comprises a first water pump disposed within the first branch and a second water pump disposed within the second branch.
7. The thermal management system of a construction machine according to claim 4, wherein a first expansion tank is connected to the cooling circulation circuit for radiating heat from the battery charger and the cooling circulation circuit for radiating heat from the driver; and the cooling circulation loop for radiating the heat of the motor is connected with a second expansion water tank.
8. The thermal management system of a work machine of claim 7, wherein a volume of the first expansion tank is no less than 20% of a total volume of heat exchange medium within the thermal management system; and/or the volume of the second expansion water tank is not smaller than the total volume of a power head motor water cavity of the engineering machine, the total volume of a water pipe of the power head motor and the sum of a preset allowance from above the liquid level of the second expansion water tank.
9. A thermal management system of a construction machine according to any one of claims 1-3, wherein the air cooling device comprises an infinitely variable speed electronic fan.
10. A work machine comprising a thermal management system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318713.XU CN220818144U (en) | 2023-08-28 | 2023-08-28 | Engineering machinery and thermal management system thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322318713.XU CN220818144U (en) | 2023-08-28 | 2023-08-28 | Engineering machinery and thermal management system thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220818144U true CN220818144U (en) | 2024-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322318713.XU Active CN220818144U (en) | 2023-08-28 | 2023-08-28 | Engineering machinery and thermal management system thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220818144U (en) |
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2023
- 2023-08-28 CN CN202322318713.XU patent/CN220818144U/en active Active
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