Sealing corrosion testing device for corrosion-resistant magnetic fluid

Abstract

The utility model discloses a sealing corrosion testing device for a corrosion-resistant magnetic fluid, and relates to the technical field of testing devices. The sealing corrosion testing device for the corrosion-resistant magnetic fluid comprises a testing cylinder, and the interior of the testing cylinder is filled with the magnetic fluid; the spraying assembly comprises a rotating rod which is rotationally arranged on the inner top wall of the testing cylinder and extends to the upper surface of the testing cylinder, and a cylindrical cavity is formed in the rotating rod. By arranging the spraying assembly and the pressurizing box, when the device is used for testing the corrosion resistance of the magnetofluid, the magnetofluid can be more fully contacted with a salt mist solution containing copper ions in the testing process, and the salt mist solution containing the copper ions, which contains 5 percent (+ / -0.5 percent) sodium chloride and 0.26 g / L (+ / -0.02 g / L) copper chloride, can induce corrosion, so that the corrosion resistance of the magnetofluid is improved, and the corrosion resistance of the magnetofluid is improved. The corrosion speed is eight times higher than that of a common salt mist solution, so that the test period is effectively shortened, and the test efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to test device technical field, concretely for a kind of corrosion-resistant magnetic fluid sealing corrosion test device. BACKGROUND

[0002] Magnetic fluid sealing device is by non-magnetic base, bearing, magnetic pole, permanent magnet, magnetic shaft, magnetic fluid is composed, under the action of magnetic field, make magnetic fluid fill annular space, establish a series of "O type sealing ring", to achieve the effect of sealing.

[0003] Before magnetic fluid sealing device is made, the corrosion resistance of magnetic body needs to be tested using test device, the currently commonly used test method is to place magnetic fluid sample in neutral salt spray test chamber, expose to a certain concentration of sodium chloride solution spray environment, last 24 hours, this method can simulate the corrosion condition in natural environment, evaluate the corrosion resistance of magnetic fluid in salt spray environment. Although this method can test the corrosion resistance of magnetic fluid, its test time is long, so that the corrosion resistance data of magnetic fluid cannot be obtained quickly, and the working efficiency is low.

[0004] In view of this, the present application provides a kind of corrosion-resistant magnetic fluid sealing corrosion test device to solve the above problems. UTILITY MODEL CONTENT

[0005] In view of the deficiencies of the prior art, the utility model provides a kind of corrosion-resistant magnetic fluid sealing corrosion test device, solves the problem of long test cycle and low test efficiency proposed in the background art.

[0006] To achieve the above object, the utility model is realized by the following technical scheme: a kind of corrosion-resistant magnetic fluid sealing corrosion test device, comprising:

[0007] Test cylinder, the inside of the test cylinder is filled with magnetic fluid;

[0008] Spray assembly, for spraying salt spray solution containing copper ions in the inside of test cylinder, the spray assembly includes rotating rod rotatingly arranged on the inner top wall of test cylinder and extending to the upper surface of test cylinder, and a cylindrical cavity is formed in the inside of rotating rod, two symmetrical spray pipes are fixed on the outer surface of rotating rod, a plurality of atomizing nozzles are arranged on the surface of two spray pipes, and the end of two spray pipes extends to the inside of cylindrical cavity, and the spray assembly further includes solution tank fixed on the upper surface of test cylinder.

[0009] Preferably, the upper surface of the test cylinder is provided with a filling pipe, and a sealing plug is arranged at the top end of the filling pipe, the outer ring surface of the bottom end of the test cylinder is provided with a drain pipe, and a valve is arranged on the surface of the drain pipe.

[0010] Preferably, the bottom end of the rotating rod is rotationally connected to the inner bottom wall of the test cylinder, and the outer surface of the bottom end of the rotating rod is fixedly provided with two symmetrical stirring blades.

[0011] Preferably, the upper surface of the test cylinder is fixedly provided with a driving motor, and the output end of the driving motor is fixedly provided with a driving gear plate, and the outer surface of the top end of the rotating rod is fixedly provided with a driven gear plate which is in meshing engagement with the driving gear plate.

[0012] Preferably, the front surface of the solution tank is provided with a liquid injection pipe, one end of the liquid injection pipe extends to the inner bottom of the solution tank, the other end of the liquid injection pipe extends to the inside of the cylindrical cavity of the rotating rod, and the top end of the rotating rod is provided with a rotating hole for the rotation of the liquid injection pipe.

[0013] Preferably, the upper surface of the solution tank is provided with a charging hole, and the inner wall of the charging hole is provided with a plug, the salt mist solution containing copper ions is stored in the inside of the solution tank, and the salt mist solution containing copper ions is prepared by mixing 5% sodium chloride and 0.26g / L copper chloride.

[0014] Preferably, the upper surface of the test cylinder is fixedly provided with a pressurizing tank, and the inner side wall of the pressurizing tank is rotationally provided with a reciprocating screw rod which extends to the outer surface of the pressurizing tank, the end of the reciprocating screw rod and the surface of the rotating rod are fixedly provided with conical gears which are in meshing engagement with each other, the inner wall of the pressurizing tank is slidably provided with a sealing plate and a rectangular plate, respectively, and the middle of the sealing plate and the rectangular plate is fixedly provided with two symmetrical connecting rods, the side surface of the rectangular plate is provided with a threaded hole which is in threaded connection with the outer surface of the reciprocating screw rod.

[0015] Preferably, the inner side wall of the pressurizing tank is respectively provided with an air suction pipe and a pressurizing pipe which extend to the outer surface of the pressurizing tank, the other end of the pressurizing pipe extends to the inside of the solution tank, and the surfaces of the air suction pipe and the pressurizing pipe are respectively provided with an air suction one-way valve and an inflation one-way valve. Advantages

[0016] The utility model provides a kind of for corrosion-resistant magnetic fluid sealing corrosion test device.Compared with prior art, it has the following beneficial effects:

[0017] The corrosion-resistant magnetic fluid sealing corrosion test device, by being provided with spray assembly and pressurizing tank, when the corrosion resistance of magnetic fluid is tested, the magnetic fluid can be more fully contacted with the salt mist solution containing copper ions in the process of testing, and the salt mist solution containing copper ions using 5% (±0.5%) sodium chloride and 0.26g / L (±0.02g / L) copper chloride can induce corrosion, which is eight times faster than the corrosion rate of ordinary salt mist solution, thereby effectively shortening the test period and improving the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0019] Figure 2 It is a test structure schematic view of the utility model;

[0020] Figure 3 It is a cross section structure schematic view of the utility model;

[0021] Figure 4 It is the utility model Figure 3 The enlarged structure schematic view of A place in the middle.

[0022] In the drawing:

[0023] 100, test cylinder;

[0024] 200, spray assembly; 201, rotating rod; 202, spray pipe; 203, atomizing nozzle; 204, solution tank; 205, stirring blade; 206, driving motor; 207, driving gear disc; 208, driven gear disc; 209, liquid injection pipe;

[0025] 300, pressurizing tank; 301, reciprocating screw; 302, bevel gear; 303, sealing plate; 304, rectangular plate; 305, connecting rod; 306, air suction pipe; 307, pressurizing pipe; 308, air suction one-way valve; 309, air charging one-way valve. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-4 The utility model provides a technical scheme: a kind of for corrosion-resistant type magnetic fluid sealed corrosion test device, comprising:

[0028] Test cylinder 100, the inside of test cylinder 100 is filled with magnetic fluid;

[0029] Please refer to Figure 2 The upper surface of test cylinder 100 is provided with filling pipe, and the top of filling pipe is provided with sealing plug, and the bottom end outer surface of test cylinder 100 is provided with liquid discharge pipe, and the surface of liquid discharge pipe is provided with valve.

[0030] Specifically, by setting filling pipe and liquid discharge pipe, it is convenient to fill and discharge magnetic fluid.

[0031] The spray assembly 200 is used for spraying the salt fog solution containing copper ions to the inside of the test cylinder 100, the spray assembly 200 comprises a rotating rod 201 which is rotatably arranged on the top wall of the test cylinder 100 and extends to the upper surface of the test cylinder 100, and a cylindrical cavity is arranged in the inside of the rotating rod 201, two symmetrical spray pipes 202 are fixedly arranged on the outer surface of the rotating rod 201, a plurality of atomizing nozzles 203 are arranged on the surfaces of the two spray pipes 202, and the end portions of the two spray pipes 202 extend to the inside of the cylindrical cavity, and the spray assembly 200 further comprises a solution tank 204 which is fixedly arranged on the upper surface of the test cylinder 100.

[0032] Referring to Figure 3 , the bottom end of the rotating rod 201 is rotatably connected with the inner bottom wall of the test cylinder 100, and two symmetrical stirring blades 205 are fixedly arranged on the outer surface of the bottom end of the rotating rod 201.

[0033] Specifically, the stirring blades 205 are arranged to facilitate the stirring of the magnetic fluid.

[0034] Referring to Figure 3 and Figure 4 , a driving motor 206 is fixedly arranged on the upper surface of the test cylinder 100, a driving gear plate 207 is fixedly arranged on the output end of the driving motor 206, and a driven gear plate 208 is fixedly arranged on the top end of the rotating rod 201 and is in meshing connection with the driving gear plate 207.

[0035] Specifically, the driving gear plate 207 and the driven gear plate 208 are arranged, so that the rotating rod 201 can be driven to rotate by the rotation of the driving motor 206.

[0036] Referring to Figure 4 , the front surface of the solution tank 204 is provided with a liquid injection pipe 209, one end of the liquid injection pipe 209 extends to the inner bottom portion of the solution tank 204, the other end of the liquid injection pipe 209 extends to the inside of the cylindrical cavity in the rotating rod 201, and a rotating hole is arranged in the top end of the rotating rod 201 for the rotation of the liquid injection pipe 209.

[0037] Specifically, the liquid injection pipe 209 is arranged to facilitate the injection of the solution in the solution tank 204 into the spray pipe 202.

[0038] Referring to Figure 3 , the upper surface of the solution tank 204 is provided with a filling hole, and a plug is arranged on the inner wall of the filling hole, the salt fog solution containing copper ions is stored in the inside of the solution tank 204, and the salt fog solution containing copper ions is prepared by mixing 5%±0.5% sodium chloride and 0.26g / L±0.02g / L copper chloride.

[0039] Specifically, by adopting 5%±0.5% sodium chloride and 0.26g / L±0.02g / L copper chloride, the salt spray solution containing copper ions can induce corrosion, which is eight times faster than the corrosion rate of the ordinary salt spray solution, thereby effectively shortening the test period and improving the test efficiency.

[0040] With reference to Figure 4 The upper surface of the test cylinder 100 is fixedly provided with a pressurizing box 300, and the inner side wall of the pressurizing box 300 is rotatably provided with a reciprocating screw rod 301 extending to the outer surface of the pressurizing box 300, and the end of the reciprocating screw rod 301 and the surface of the rotating rod 201 are fixedly provided with intermeshing conical gears 302, and the inner wall of the pressurizing box 300 is slidably provided with a sealing plate 303 and a rectangular plate 304, and the middle of the sealing plate 303 and the rectangular plate 304 is fixedly provided with two symmetrical connecting rods 305, and the side surface of the rectangular plate 304 is provided with a threaded hole screw-connected with the outer surface of the reciprocating screw rod 301.

[0041] Specifically, by setting the conical gears 302, the reciprocating screw rod 301 can be driven to rotate by the rotation of the rotating rod 201.

[0042] With reference to Figure 2 The inner side wall of the pressurizing box 300 is respectively provided with an air suction pipe 306 and a pressurizing pipe 307 extending to the outer surface of the pressurizing box 300, and the other end of the pressurizing pipe 307 extends to the inside of the solution box 204, and the surface of the air suction pipe 306 and the pressurizing pipe 307 is respectively provided with an air suction one-way valve 308 and a gas charging one-way valve 309.

[0043] Specifically, when the sealing plate 303 moves to the right, the external air can be sucked into the pressurizing box 300 through the air suction pipe 306, and when the sealing plate 303 moves to the left, the solution in the pressurizing box 300 can be filled into the solution box 204 through the pressurizing pipe 307.

[0044] The utility model discloses a test device for the corrosion resistance of magnetic fluid, which comprises a test cylinder 100, a rotating rod 201 rotatably arranged on the upper surface of the test cylinder 100, a solution box 204 fixedly arranged on the rotating rod 201, a spraying assembly 200 arranged on the solution box 204, and a pressurizing box 300 fixedly arranged on the upper surface of the test cylinder 100.

[0045] Working principle: when the device tests the corrosion resistance of the magnetic fluid, the magnetic fluid can be injected into the test cylinder 100, and the driving motor 206 is started, the rotation of the driving motor 206 drives the rotation of the driving gear plate 207, the rotation of the driving gear plate 207 drives the rotation of the driven gear plate 208 and the rotating rod 201, the rotation of the rotating rod 201 drives the rotation of the reciprocating screw 301 under the action of the two bevel gears 302, the rotation of the reciprocating screw 301 drives the back and forth movement of the rectangular plate 304, the back and forth movement of the rectangular plate 304 drives the back and forth movement of the sealing plate 303 through the connecting rod 305, realizes the purpose of continuously pressurizing the inside of the solution tank 204, makes the salt spray solution containing copper ions in the solution tank 204 enter the cylindrical cavity in the rotating rod 201 through the liquid injection pipe 209, and enters the spray pipe 202 through the atomizing nozzle 203 and sprays onto the magnetic fluid in the test cylinder 100, realizes the purpose of testing the corrosion resistance of the magnetic fluid, at the same time, in the process of testing, on the one hand, the rotation of the rotating rod 201 can drive the rotation of the spray pipe 202 and the atomizing nozzle 203, on the other hand, it can drive the stirring blade 205 to stir the magnetic fluid, so that the magnetic fluid can be more fully contacted with the salt spray solution containing copper ions, and the use of 5% (±0.5%) sodium chloride and 0.26g / L (±0.02g / L) copper chloride salt spray solution containing copper ions can induce corrosion, which is eight times faster than the corrosion speed of ordinary salt spray solution, thereby effectively shortening the test period and improving the test efficiency.

[0046] Meanwhile, the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

Claims

1. A corrosion-resistant magnetofluid seal corrosion testing device, comprising: The utility model relates to a test cylinder (100) is filled with magnetic fluid in the inside, a spray assembly (200) is used for spraying the salt fog solution containing copper ion to the inside of test cylinder (100), the spray assembly (200) includes the rotary rod (201) of rotary setting in the top wall of test cylinder (100) and extending to the upper surface of test cylinder (100), and the inside of rotary rod (201) is provided with cylindrical cavity, the outer surface of rotary rod (201) is fixed with two symmetrical spray pipes (202), the surface of two spray pipes (202) is provided with a plurality of atomizing nozzles (203), and the end of two spray pipes (202) extends to the inside of cylindrical cavity, the spray assembly (200) further includes the solution tank (204) of fixed setting on the upper surface of test cylinder (100). The upper surface of the test cylinder (100) is provided with a filling pipe, and a sealing plug is arranged at the top end of the filling pipe. The outer annular surface of the bottom end of the test cylinder (100) is provided with a drainage pipe, and a valve is arranged on the surface of the drainage pipe. The bottom end of the rotary rod (201) is rotatably connected to the inner bottom wall of the test cylinder (100), and two symmetrical stirring blades (205) are fixedly arranged on the outer surface of the bottom end of the rotary rod (201).

2. A corrosion-resistant magnetofluid seal corrosion testing device according to claim 1, wherein: A drive motor (206) is fixedly arranged on the upper surface of the test cylinder (100), and a driving gear plate (207) is fixedly arranged on the output end of the drive motor (206). A driven gear plate (208) is fixedly arranged on the outer surface of the top end of the rotary rod (201), and the driving gear plate (207) and the driven gear plate (208) are in meshing engagement.

3. A corrosion-resistant magnetofluid seal corrosion testing device as defined in claim 1, wherein: A liquid injection pipe (209) is arranged on the front surface of the solution tank (204), one end of the liquid injection pipe (209) extends to the inner bottom part of the solution tank (204), the other end of the liquid injection pipe (209) extends to the inside of the cylindrical cavity in the rotary rod (201), and a rotating hole is arranged at the top end of the rotary rod (201) for the rotation of the liquid injection pipe (209).

4. A corrosion-resistant magnetofluid seal corrosion testing device as defined in claim 1, wherein: A charging hole is arranged on the upper surface of the solution tank (204), and a hole plug is arranged on the inner wall of the charging hole. The salt fog solution containing copper ions is stored in the inside of the solution tank (204), and the salt fog solution containing copper ions is prepared by mixing 5% (±0.5%) sodium chloride and 0.26g / L (±0.02g / L) copper chloride.

5. A corrosion-resistant magnetofluid seal corrosion testing device as defined in claim 1, wherein: A pressurizing box (300) is fixedly arranged on the upper surface of the test cylinder (100), a reciprocating screw rod (301) is rotatably arranged on the inner side wall of the pressurizing box (300) and extends to the outer surface of the pressurizing box (300), tapered gears (302) are fixedly arranged on the end of the reciprocating screw rod (301) and the surface of the rotary rod (201) and are in meshing engagement, a sealing plate (303) and a rectangular plate (304) are slidably arranged on the inner wall of the pressurizing box (300), two symmetrical connecting rods (305) are fixedly arranged in the middle of the sealing plate (303) and the rectangular plate (304), and screw holes are arranged on the side surface of the rectangular plate (304) and are in threaded connection with the outer surface of the reciprocating screw rod (301).

6. A corrosion-resistant magnetofluid seal corrosion testing device as defined in claim 1, wherein: ​ 7. A corrosion-resistant magnetofluid seal corrosion testing device as defined in claim 1, wherein: ​ 8. A corrosion-resistant magnetofluid seal corrosion testing device according to claim 7, wherein: The inner side wall of the pressurizing box (300) is respectively provided with an air suction pipe (306) and a pressurizing pipe (307) extending to the outer surface of the pressurizing box (300), the other end of the pressurizing pipe (307) extends to the inside of the solution box (204), and the surfaces of the air suction pipe (306) and the pressurizing pipe (307) are respectively provided with an air suction one-way valve (308) and an inflation one-way valve (309).

Images