Device for testing adhesive force of anti-icing coating
Technical Field
The utility model relates to an anti-icing testing arrangement technical field especially relates to a device of anti-icing coating adhesive force test.
Background
In recent years, in parts of domestic provinces, the weather of low temperature rain, snow and ice is very severe every winter, the icing thickness of parts of power transmission lines is continuously increased along with the weather of sudden snow and ice, and as the icing of the lines greatly exceeds the specified design standard, the large-area pressure breaking of the power transmission and distribution lines occurs, the safe operation and reliable power supply of a power grid are seriously influenced, great inconvenience is brought to the life and work of people, and huge loss is caused to the regional economic development. Due to deterioration of natural environment, global climate enters a disaster event multi-occurrence period, and frequent occurrence of extreme climate weather brings new challenges to safe operation of a power grid; it is very important to summarize experience and training from disaster events, study countermeasures, and improve the capability of the power grid to resist natural disasters. The ice coating of the first power grid wire can cause a windward side to be formed in the atmosphere, and the wire can swing when the angle of wind is proper to the angle of the windward side of the ice; the second lead is easy to cause flashover due to ice coating, so that the discharge creepage distance of the insulator is greatly reduced, and the insulation of the insulator string is greatly reduced; thirdly, in mountainous areas and hills, areas with higher altitude and larger line height difference have serious icing conditions and greatly increased tower falling proportion, so the research on the anti-icing technology of the power grid line has very important significance.
Ice coating prevention has no good solution in the world, and the most of the existing deicing and ice preventing technologies for power grid lines mainly comprise: mechanical deicing, spraying of an anti-icing agent, heating deicing and deicing of an anti-icing coating; wherein an anti-icing coating is a relatively effective method. However, there is no systematic and complete method for detecting the anti-icing capability of the anti-icing coating, wherein the icing adhesion is a very important factor in the anti-icing capability. At present, the icing-resistant capability testing device for the coating at home and abroad mainly has two types: the other is a shearing force measuring device by a cylinder method, the testing method of the device is that ice is coated in a gap between a central cylinder and an outer substrate (model), an external force is directly applied above the central cylinder during testing, the shearing force between the ice and the central cylinder is calculated by measuring the critical force for moving the cylinder, and the shearing force measuring device by the cylinder method is simple and convenient to operate. However, the ice coating of water in analysis is different from the actual situation, and the repeatability of the test results of multiple times is not ideal.
In view of the above, there is a need for an apparatus for testing adhesion of ice-over-proof coatings.
Disclosure of Invention
To the above problem, an object of the utility model is to provide an anti-icing coating adhesive force test's device.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a device of anti-icing coating adhesive force test, includes the box, install temperature control device and humidity control device in the box respectively, still install in the box and coat the board, the separable frozen ice urceolus of placing on coating the board, be provided with the pull wire on the frozen ice urceolus, the other end and the tensile test machine of pull wire are connected.
The device is simple in structure and convenient to operate, water is condensed into ice columns along frozen ice on the coating plate after the water is added into the frozen ice outer barrel, and then the ice coating outer barrel can be subjected to ice coating adhesion force test.
Preferably, the coating plate is an iron plate which is fixedly arranged on a working table surface in the box body, the iron plate is used as the coating plate and fixedly arranged on the working table surface in the box body, and the ice coating preventing coating is coated on the surface of the iron plate, so that the subsequent operation of condensing the frozen ice outer barrel on the iron plate surface into ice columns is facilitated.
Preferably, the frozen ice outer barrel is an aluminum alloy structural member.
Preferably, the upper surface of the coating plate and two ends of the frozen ice outer cylinder are polished, the lower surface of the frozen ice outer cylinder is in contact with the upper surface of the coating plate, and the upper surface of the coating plate and the two ends of the frozen ice outer cylinder are polished to prevent water from flowing out along a gap between the contact surfaces of the frozen ice outer cylinder and the coating plate after water is added into the frozen ice outer cylinder.
Preferably, the polishing grades of the upper surface of the coated plate and the two ends of the frozen ice outer barrel meet the requirement of 4-5-grade brightness.
Preferably, the bottom of the frozen ice outer barrel is sleeved with a rubber gasket, the rubber gasket has a good sealing effect, and the rubber gasket is sleeved at the bottom of the frozen ice outer barrel to prevent water from flowing out along the contact surface of the frozen ice outer barrel and the coating plate.
Preferably, the one end of pull wire is by the axial annular winding of lower supreme edge frozen ice urceolus, and the other end can be dismantled with tensile testing machine and be connected, and the water-cooling in the frozen ice urceolus freezes to become ice back inflation and is connected as an organic wholely with frozen ice urceolus, and the one end of pull wire is by the axial annular winding of lower supreme edge frozen ice urceolus, and the other end can be dismantled with tensile testing machine and be connected, and tensile testing machine acts on frozen ice urceolus through the pulling force of pull wire, and then acts on the icicle to the realization is to the icicle and scribble the test of the shearing.
Compared with the prior art, the utility model has the advantages of: the utility model relates to a device for testing the adhesive force of an anti-icing coating, which is characterized in that a frozen ice outer cylinder is arranged on a coating plate, a certain amount of water is poured into the frozen ice outer cylinder, a box door is closed, the low-temperature rain, snow and ice weather environment is formed in the box body by adjusting the temperature control device and the humidity control device, so that the water in the frozen ice outer cylinder is quickly frozen to form experimental icicles which are adhered on the coating plate, the door of the refrigerator is opened, the other end of the frozen ice outer barrel, which is provided with the traction wire, is connected with the tensile testing machine, and the tensile testing machine is started to test the ice coating adhesive force of the ice coating prevention coating of the coating plate, the device has simple structure and convenient operation, only after water is added into the frozen ice outer barrel, the icing-resistant coating icing adhesive force test can be carried out by condensing water on the coating plate into ice columns along the frozen ice outer cylinder, and the problems of complex structure, high cost and inaccurate icing adhesive force detection of the conventional test device are solved.
The beneficial effects of other embodiments of the application are as follows:
1. the iron plate is used as the coating plate and is fixedly arranged on the working table surface in the box body, the ice coating preventing coating is coated on the surface of the iron plate, and the subsequent operation of condensing the frozen ice outer barrel on the surface of the iron plate into icicles is facilitated.
2. The lower surface of the frozen ice outer cylinder is in contact with the upper surface of the coating plate, and the upper surface of the coating plate and the two ends of the frozen ice outer cylinder are polished to prevent water from flowing out along a gap between the contact surfaces of the frozen ice outer cylinder and the coating plate after water is added into the frozen ice outer cylinder.
3. The rubber gasket has good sealing effect, and the rubber gasket is sleeved at the bottom of the frozen ice outer barrel to prevent water from flowing out along the contact surface of the frozen ice outer barrel and the coating plate.
4. The water in the frozen ice outer barrel expands after being frozen into ice and is connected with the frozen ice outer barrel into a whole, one end of the traction wire is wound along the axial ring of the frozen ice outer barrel from bottom to top, the other end of the traction wire is detachably connected with a tension tester, the tension tester acts on the frozen ice outer barrel through the tension of the traction wire and then acts on the icicle, and therefore the testing of the shearing force between the icicle and the coating surface of the coating plate is achieved.
Drawings
Fig. 1 is a schematic structural diagram of the device for testing the adhesion of the ice-covering-proof coating of the utility model.
Reference numerals
The method comprises the following steps of 1-a box body, 2-a temperature control device, 3-a humidity control device, 4-a frozen ice outer barrel, 5-a rubber gasket, 6-a traction wire, 7-a tensile testing machine, 8-a coating plate, 9-a box door and 10-a workbench surface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
As shown in fig. 1, the device for testing the adhesion of the ice-coating-proof coating in the embodiment comprises a box body 1, a temperature control device 2, a humidity control device 3, an outer frozen ice cylinder 4, a rubber gasket 5, a traction wire 6, a tensile testing machine 7, a coating plate 8, a box door 9, a workbench surface 10, an outer frozen ice cylinder 4 made of an aluminum alloy material, the coating plate 8 made of an iron plate, the iron plate fixedly mounted on the workbench surface 10 in the box body 1, the upper surface of the coating plate 8 and two ends of the outer frozen ice cylinder 4 are polished to meet the requirements of 4-5-level brightness, the ice-coating-proof coating is coated on the upper surface of the coating plate 8, after the coating is solidified, the outer frozen ice cylinder 4 is placed on the coating plate 8, a certain amount of water is poured into the outer frozen ice cylinder 4, the box door 9 is closed, and the temperature control device 2 and the humidity control device 3 are adjusted, make the interior low temperature sleet ice weather environment that freezes of formation of box 1, thereby make the water in the frozen ice urceolus 4 freeze fast and form the experiment icicle and bond on coating plate 8, open chamber door 9, the other end through being provided with pull wire 6 on the frozen ice urceolus 4 is connected with tensile test machine 7, it coats icing coating icing adhesive force test to start tensile test machine 7 that coats plate 8, this device simple structure, high durability and convenient operation, only need to add the water back in the frozen ice urceolus 4, water condenses into the icicle along frozen ice urceolus 4 on coating plate 8 and can carry out icing coating icing adhesive force test of preventing, it is complicated to have solved current testing arrangement structure, the cost is higher and icing adhesive force detects the unsafe problem.
The lower surface of the frozen ice outer barrel 4 is in contact with the upper surface of the coating plate 8, the upper surface of the coating plate 8 and the two ends of the frozen ice outer barrel 4 are polished, so that the contact between the frozen ice outer barrel 4 and the coating plate 8 is good, the gap is small, and water is prevented from flowing out along the gap between the contact surfaces of the frozen ice outer barrel 4 and the coating plate 8 after water is added into the frozen ice outer barrel 4.
The rubber gasket 5 has a good sealing effect, the rubber gasket 5 is sleeved at the bottom of the outer frozen ice barrel 4, the lower surface of the rubber gasket 5 is in surface contact with the upper surface of the coating plate 8, and the rubber gasket has the effect of preventing water from flowing out along a gap between the contact surfaces of the outer frozen ice barrel 4 and the coating plate 8.
The water in the frozen ice urceolus 4 freezes into ice and expands and is connected as an organic wholely with frozen ice urceolus 4, the one end of pull wire 6 is by lower supreme axial annular winding along frozen ice urceolus 4, the other end can be dismantled with tensile testing machine 7 and be connected, tensile testing machine 7 acts on frozen ice urceolus 4 through the pulling force of pull wire 6, and then acts on the icicle, tensile testing machine 7 acts on the power of pull wire 6 and removes until the icicle, thereby the realization is to the icicle and scribble the test of the shearing force size between the coating face of coating board 8.
The above embodiments are only used to illustrate the present invention and not to limit the technical solutions described in the present invention, and although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and therefore, any modification or equivalent replacement may be made to the present invention; all such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention and protected by the following claims.