CN215338745U - Airtight experiment groove - Google Patents

Airtight experiment groove Download PDF

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Publication number
CN215338745U
CN215338745U CN202120912410.9U CN202120912410U CN215338745U CN 215338745 U CN215338745 U CN 215338745U CN 202120912410 U CN202120912410 U CN 202120912410U CN 215338745 U CN215338745 U CN 215338745U
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China
Prior art keywords
liquid
radiator
airtight
tank
groove
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CN202120912410.9U
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Chinese (zh)
Inventor
陈浩
王克俊
王科理
李肖刚
石春珉
姜伟
肖楠
于荣泉
黄健
高福来
张锐
张忠凯
黄哲昊
宋婕
曹玉
王超
卢翀
王勇
李展伟
赵东生
贾昊睿
杨丰
刘向云
张一睿
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China Academy of Railway Sciences Corp Ltd CARS
Standards and Metrology Research Institute of CARS
China Railway Test and Certification Center Ltd
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China Academy of Railway Sciences Corp Ltd CARS
Standards and Metrology Research Institute of CARS
China Railway Test and Certification Center Ltd
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Application filed by China Academy of Railway Sciences Corp Ltd CARS, Standards and Metrology Research Institute of CARS, China Railway Test and Certification Center Ltd filed Critical China Academy of Railway Sciences Corp Ltd CARS
Priority to CN202120912410.9U priority Critical patent/CN215338745U/en
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Abstract

The utility model relates to the field of railway equipment testing, and provides an airtight experiment groove for carrying out an airtight experiment on a radiator. The radiator can be lifted out without releasing the liquid in the liquid tank, the lifting platform is used for lifting, the radiator can be rapidly moved out of the liquid tank, and the experiment efficiency is high.

Description

Airtight experiment groove
Technical Field
The utility model relates to the field of railway equipment testing, in particular to an airtight experiment groove.
Background
The locomotive is usually provided with a radiator for radiating the power device, so that the normal operation of the locomotive is ensured, for example, an oil radiator is required to be arranged for radiating the heat of a vehicle traction transformer, and a water radiator is required to be arranged for radiating the heat of a traction converter. The heat dissipation stability of the radiator influences whether the transformer and the converter can work normally. In order to ensure stable and reliable heat dissipation performance of the heat sink, the heat sink needs to be subjected to an air tightness test. Among the prior art, the radiator need be in hoisting the radiator into the liquid tank through the crane when doing airtight experiment, then carry out the gas tightness and observe, after observing, need emit liquid, expose after the radiator, rethread crane hoists the radiator and takes out, and the liquid of emitting is wasted, or needs extra container to accept, and whole experimental step is consuming time longer, and to many times continuous airtight experiment, efficiency is lower.
SUMMERY OF THE UTILITY MODEL
The utility model provides an airtight experiment groove beneficial to quickly completing an airtight experiment, and particularly provides an airtight experiment groove for performing an airtight experiment on a radiator, aiming at solving the problems of low operation efficiency and long consumed time in the prior art when the radiator is subjected to the airtight experiment.
Furthermore, the lifting module comprises a guide rail connected with the side wall and a roller capable of rolling relative to the guide rail, and the rotating center of the roller is hinged with the bearing platform.
Further, the lifting driving module comprises a first cylinder body connected with the liquid groove and a first piston rod capable of sliding relative to the first cylinder body, the tail end of the first piston rod is connected with the bearing platform, and the sliding direction of the first piston rod is consistent with the extending direction of the guide rail.
Further, the bearing platform comprises a bearing plate, wherein centering mechanisms are arranged on the left side and the right side of the bearing plate, and are used for centering the radiator positioned on the bearing plate.
Further, the centering mechanism comprises a second cylinder body and a second piston rod capable of sliding relative to the second cylinder body, and the sliding directions of the second piston rods on the two sides of the supporting plate are opposite.
Furthermore, through holes in an array form are arranged on the bearing plate.
Further, a beam frame is arranged at the top of the side wall, a camera is arranged on the beam frame, and the camera is used for shooting images of the liquid level at the top of the liquid tank.
Further, still be provided with the LED lamp on the roof beam structure for when the camera shoots to carry out the light filling to the top liquid level.
Furthermore, a liquid outlet is formed in the bottom of the liquid tank, and a liquid inlet is formed in the upper portion of the side wall.
Further, when the heat radiator is subjected to the airtight experiment, the moving end of the lifting platform is configured to move downwards until the heat radiator is completely immersed in the liquid tank; and the radiator is provided with a gas inlet connected with an external gas source.
According to the airtight experiment tank, the lifting module is lifted, the radiator is arranged on the bearing platform and is lowered, so that the radiator is immersed in the liquid tank, after the airtight experiment tank is stabilized, the radiator is ventilated, whether bubbles emerge or not is observed, the airtightness of the radiator is known, after the experiment is finished, the radiator is lifted through the lifting module, a crane or a forklift or manpower is facilitated, the whole experiment efficiency of conveying the radiator out of the liquid tank is high, the radiator can be lifted out without releasing liquid in the liquid tank, and the radiator can be quickly conveyed out of the liquid tank by lifting the lifting platform.
Drawings
The features and advantages of the present invention will be more clearly understood by reference to the accompanying drawings, which are illustrative and not to be construed as limiting the utility model in any way, and in which:
FIG. 1 is a schematic diagram of the overall construction of a positive air cell in accordance with certain embodiments of the present invention;
FIG. 2 is a schematic view of the overall structure of another view after the hermetic test cell has hidden the heat sink in some embodiments of the utility model;
FIG. 3 is a schematic view of a partial structure of a gas-tight experimental cell according to some embodiments of the present invention;
FIG. 4 is a schematic view of a partial structure of a gas-tight experimental cell according to some embodiments of the present invention;
FIG. 5 is a schematic view of the bottom of a gas-tight experimental tank according to some embodiments of the present invention.
Detailed Description
In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the utility model will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.
The power device of the railway locomotive needs to be provided with a radiator, the performance of the radiator influences the service life of the power device, in order to increase the effect of the radiator, a fluid pipeline is often arranged in the radiator, and the efficiency of heat exchange is improved. In prior art, to the airtight experiment groove of radiator, need cooperate external crane, hang into the liquid tank with the radiator in, then ventilate the test, observe the gas tightness, after the experiment, often need release liquid in the liquid tank, just can hang out the radiator, follow-up if meet frequent experimentation, cause the interval between the experiment at every turn to increase, reduced holistic fact and tested efficiency. Therefore, the embodiment of the utility model provides the airtight experiment groove, the lifting mechanism is arranged in the liquid groove, the radiator can be lowered into the liquid groove to carry out an experiment according to the requirement, when the experiment is stopped and the radiator needs to be replaced, the lifting mechanism can be lifted to lift the radiator out of the liquid groove, a crane or a forklift can carry the radiator away conveniently, and the experiment efficiency is improved.
Specifically, as shown in fig. 1 to 5, an embodiment of the present invention provides an airtight testing chamber 100 for performing an airtight test on a heat sink 200, including a liquid chamber 110, a lifting module 120 disposed in the liquid chamber 110 and connected to a sidewall 111 of the liquid chamber 110, and a supporting platform 130 disposed at a moving end of the lifting module 120, wherein the supporting platform 130 is configured to receive the heat sink 200. The heat sink 200 can be sunk into the liquid in the liquid tank 110 by the lifting of the lifting module 120, and the heat sink 200 can be lifted out of the liquid tank 110, so that the heat sink is convenient to carry. In the experiment, after the heat sink 200 is sunk into the liquid tank 110, the sealing performance of the water path pipeline and the oil path pipeline in the heat sink 200 can be obtained by observing bubbles emerging from the liquid tank 110. The time for the heat sink 200 to sink into the liquid may be between 30min and 70 min. The liquid in the liquid tank 100 may be water or oil as desired.
The shape of the liquid tank 110 may be set as required, and in some embodiments, the liquid tank 110 has a square shape, and the side wall 111 is disposed around the square shape. The surrounding side walls 111 surround to form a liquid accommodating space.
The lifting module 120 of the present invention may adopt a plurality of electric cylinders and a plurality of hydraulic cylinders to cooperate to realize linear lifting, or may adopt a pulley, a lifting rope and a winch to realize lifting of the lifting module 120 by controlling the retraction of the lifting rope. Specifically, as shown in fig. 2, the lifting module 120 includes a guide rail 121 connected to the side wall 111, and a roller 122 capable of rolling relative to the guide rail 121, and a rotation center of the roller 122 is hinged to the supporting platform 130. Specifically, four guide rails 121 may be disposed at four corners or four sides of the liquid tank 110, the extending directions of the guide rails 121 are parallel to each other, correspondingly, four rollers 122 are disposed on the supporting platform 130, the rollers 122 roll with respect to the guide rollers 121, so as to realize the lifting of the supporting platform 130, the rollers 122 may be considered as the moving ends of the lifting module 120, and the rollers 122 and the supporting platform 130 lift together.
In the embodiment of the present invention, the lifting may be achieved by driving the roller 122 to roll, and in a specific form, the center of the roller 122 may be directly connected to a driving motor to drive the roller 122 to roll, or a roller that rolls freely may be adopted to drive the lifting module 120 to move through an additional driving device.
In some embodiments of the present invention, the airtight testing chamber 100 further comprises a lifting driving module 140, wherein the lifting driving module 140 comprises a first cylinder 141 connected to the liquid chamber 110, a first piston rod 142 capable of sliding relative to the first cylinder 141, an end of the first piston rod 142 is connected to the supporting platform 130, and a sliding direction of the first piston rod 142 is aligned with an extending direction of the guide rail 121. The first cylinder 141 and the liquid tank 110 may be fixedly connected or hinged, and the first piston rod 142 and the supporting platform 130 may be fixedly connected or hinged.
In order to ensure that the heat sink is positioned in the middle of the support platform 130 for easy viewing, in the embodiment of the present invention, a centering mechanism is further provided to push the heat sink 200 in multiple directions, so that the heat sink 200 is positioned in the middle. Specifically, the supporting platform 130 includes a supporting plate 131, and centering mechanisms 150 are disposed on the left and right sides of the supporting plate 131, and the centering mechanisms 150 are used for centering the heat sink 200 located on the supporting plate 131.
Further, the centering mechanism 150 includes a second cylinder 151 and a second piston rod 152 slidable with respect to the second cylinder 151, and the sliding directions of the second piston rods 152 on both sides of the support plate 131 are opposite. The second cylinder 151 is fixedly connected to the supporting plate 131, and the end of the second piston rod 152 pushes the heat sink 200 to move, so that the heat sink 200 is located at the middle position of the supporting plate 131.
In some embodiments of the present invention, in order to reduce the resistance and avoid causing residual gas at the bottom of the support plate 131 to emerge during the observation period, the support plate 131 is provided with through holes 1311 in an array form, so that when the support plate 131 enters the liquid from the outside of the liquid tank 110, the gas at the bottom of the support plate 131 can emerge out of the water surface relatively quickly to form a stable environment.
In order to realize remote observation, a camera can be arranged to shoot the liquid level at the upper part of the liquid tank, acquire an image and send the image to a remote display to realize remote observation, the top of the side wall 111 is provided with a beam frame 112, the beam frame 112 is provided with a camera 160, and the camera 160 is used for shooting the image of the liquid level at the top of the liquid tank 110. The distal end may be sealed by an image or tubing of the heat sink 200. in some embodiments, the laboratory bench further comprises a controller for controlling the operation of the lifting module, the lifting drive module, and the centering module. In some embodiments, the controller may calculate a pixel variance value of the level image to know whether a bubble has emerged. The variance calculation method is built in the controller, and the image is called to calculate.
The first cylinder 141 may be coupled to the beam 112 to increase the stroke of the first cylinder 141.
Further, the beam frame 112 is further provided with an LED lamp 170 for supplementing light to the top liquid level when the camera 160 shoots.
Further, the liquid tank 110 is provided with a liquid outlet 113 at the bottom and a liquid inlet 114 at the upper part of the sidewall 111 for discharging liquid.
Further, when the heat sink 200 performs the airtight test, the moving end of the lifting module 120 is configured to move downward until the heat sink 200 is completely immersed in the liquid tank 110; the heat sink 200 is provided with a gas inlet connected to an external gas source. During the experiment, an external air source injects air from the air inlet, and the other port of the pipeline on the radiator 200 is sealed.
In the embodiment of the utility model, the first cylinder body and the second cylinder body can adopt hydraulic cylinders and air cylinders.
According to the airtight experiment tank, the lifting module is lifted, the radiator is arranged on the bearing platform and is lowered, so that the radiator is immersed in the liquid tank, after the airtight experiment tank is stabilized, the radiator is ventilated, whether bubbles emerge or not is observed, the airtightness of the radiator is known, after the experiment is finished, the radiator is lifted through the lifting module, a crane or a forklift or manpower is facilitated, the whole experiment efficiency of conveying the radiator out of the liquid tank is high, the radiator can be lifted out without releasing liquid in the liquid tank, and the radiator can be quickly conveyed out of the liquid tank by lifting the lifting platform.
In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an airtight experiment groove for carry out airtight experiment to the radiator, its characterized in that, including the liquid groove, set up in the liquid groove with the lift module that the liquid groove lateral wall is connected and setting are in the bearing platform on the motion end of lift module, the bearing platform is used for accepting the radiator.
2. The airtight experimental tank of claim 1, wherein said elevating module comprises a guide rail connected to said side wall, a roller capable of rolling with respect to said guide rail, and a rotation center of said roller is hinged to said holding platform.
3. The air-tight experimental tank of claim 2, further comprising a lifting driving module, wherein the lifting driving module comprises a first cylinder connected to the liquid tank, a first piston rod capable of sliding relative to the first cylinder, the end of the first piston rod is connected to the supporting platform, and the sliding direction of the first piston rod is consistent with the extending direction of the guide rail.
4. The airtight experimental tank of any one of claims 1 to 3, wherein said supporting platform comprises a supporting plate, and centering mechanisms are disposed on left and right sides of said supporting plate, and are used for centering the heat sink on said supporting plate.
5. The gas-tight experimental groove of claim 4, wherein said centering mechanism comprises a second cylinder and a second piston rod slidable with respect to said second cylinder, and the sliding directions of the second piston rods on both sides of said supporting plate are opposite.
6. The gas-tight experimental tank of claim 4, wherein the support plate is provided with through holes in an array form.
7. The airtight experiment tank as claimed in any of claims 1 to 3, wherein a beam frame is provided on the top of the side wall, and a camera is provided on the beam frame for capturing images of the liquid level at the top of the liquid tank.
8. The airtight experiment groove of claim 7, wherein the beam frame is further provided with an LED lamp for supplementing light to the top liquid level when the camera shoots.
9. The gas-tight test cell according to any of claims 1 to 3, wherein the liquid cell has a liquid outlet at the bottom and a liquid inlet at the top of the sidewall.
10. The airtight experimental tank of any one of claims 1 to 3, wherein the moving end of the lifting module is configured to move downward until the radiator is completely immersed in the liquid tank when the radiator performs the airtight experiment; and the radiator is provided with a gas inlet connected with an external gas source.
CN202120912410.9U 2021-04-29 2021-04-29 Airtight experiment groove Active CN215338745U (en)

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Application Number Priority Date Filing Date Title
CN202120912410.9U CN215338745U (en) 2021-04-29 2021-04-29 Airtight experiment groove

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115077804A (en) * 2022-08-18 2022-09-20 普兰特换热设备(溧阳)有限公司 Intelligent air tightness detection device for heat exchanger production
CN115265932A (en) * 2022-09-27 2022-11-01 河北华丰工业集团有限公司 Transformer radiator monolithic testing arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115077804A (en) * 2022-08-18 2022-09-20 普兰特换热设备(溧阳)有限公司 Intelligent air tightness detection device for heat exchanger production
CN115077804B (en) * 2022-08-18 2022-11-18 普兰特换热设备(溧阳)有限公司 Intelligent air tightness detection device for heat exchanger production
CN115265932A (en) * 2022-09-27 2022-11-01 河北华丰工业集团有限公司 Transformer radiator monolithic testing arrangement
CN115265932B (en) * 2022-09-27 2023-01-13 河北华丰工业集团有限公司 Transformer radiator monolithic testing arrangement

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