Cooling liquid corrosion testing device

Abstract

The utility model relates to the technical field of cooling liquid corrosion testing, and discloses a cooling liquid corrosion testing device which comprises a base, a connecting table is fixedly connected to the left side of the base, a liquid storage tank is arranged at the top of the connecting table, a motor is fixedly connected to the bottom of the inner wall of the base, and a rotating shaft is fixedly arranged at the output end of the motor. A flexible impeller is fixedly connected to the surface of the rotating shaft, a soaking water tank is fixedly connected to the top of the base, a fixing cover is slidably connected to the top of the soaking water tank, and a fixing mechanism is arranged at the bottom of the fixing cover. According to the utility model, cooling liquid to be detected is pumped into the soaking water tank through the connecting pipe, the rotating shaft is rotated by starting the motor, the flexible impeller is driven to rotate through the rotating shaft, and the cooling liquid in the soaking water tank can generate a complex flowing state through the rotation of the flexible impeller; and the test deviation caused by a single flow field of the traditional symmetrical impeller is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to cooling liquid corrosion test technical field especially relates to a cooling liquid corrosion testing device. BACKGROUND

[0002] Cooling liquid corrosion testing device is a kind of simulating actual working condition environment, for evaluating the corrosion performance of cooling liquid to metal or non-metal material Equipment, this kind of device mainly through detecting the corrosion rate of cooling liquid to engine cylinder, radiator and sealing material etc. Material compatibility test is carried out, and the effective protection period of cooling liquid in actual use is predicted through accelerated corrosion experiment.

[0003] The existing cooling liquid corrosion testing device usually adopts soaking water tank as main body structure, by placing test piece in soaking water tank and pumping cooling liquid, observes test piece after a period of time to evaluate cooling liquid, since the cooling liquid in this kind of equipment is only static immersion or low flow rate circulation, cannot simulate the complex flow environment in the real use scene of cooling liquid, is prone to cause the deviation of test. UTILITY MODEL CONTENTS

[0004] In order to make up for the above insufficient, the utility model provides a kind of cooling liquid corrosion testing device, to solve the problem that the existing device cannot simulate complex flow environment and lead to test deviation.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a kind of cooling liquid corrosion testing device, including base, the left side of the base is fixedly connected with connecting table, the top of the connecting table is provided with liquid storage tank, the inner wall bottom of the base is fixedly connected with motor, the output of the motor is fixedly provided with shaft, the surface of the shaft is fixedly connected with flexible impeller, the top of the base is fixedly connected with soaking sink, the top of the soaking sink is slidably connected with fixed cover, the bottom of the fixed cover is provided with fixed mechanism.

[0006] Preferably, the fixed mechanism includes fixed groove, the fixed groove is fixedly connected between fixed cover, the inner wall of the fixed groove is slidably connected with fixed strip, and the surface of the fixed strip is uniformly provided with connecting hole.

[0007] Preferably, the inner wall of the base is fixedly connected with liquid collecting groove, the inner wall of the liquid collecting groove is slidably connected with fixed bolt, and the top of the fixed bolt is threadedly connected with sealing ring.

[0008] Preferably, the top of the liquid storage tank is provided with top cover, and the bottom of the connecting table is provided with heater and water chiller.

[0009] Preferably, the both ends of the fixed strip are threadedly connected with fixed sleeve, and the inner side surface of the fixed sleeve is matched with the fixed groove.

[0010] Preferably, the liquid storage tank right side is fixedly connected with a connecting pipe, and the base right side is fixedly connected with a liquid outlet pipe.

[0011] Preferably, the flexible impeller is made of fluorine rubber material.

[0012] Preferably, the fixed cover top is provided with an observation window, and the fixed cover top is provided with a handle.

[0013] The utility model has the advantages of the following beneficial effects:

[0014] 1. In the utility model, the connecting pipe is used for pumping the cooling liquid to be detected into the soaking water tank, the motor is started to drive the rotating shaft to rotate, the flexible impeller is driven to rotate by the rotating shaft, the flexible impeller is located in the collecting tank, the flexible impeller is eccentric with the collecting tank, the rotation of the flexible impeller can make the cooling liquid in the soaking water tank produce non-uniform turbulent flow, thereby simulating the complex flow state in the narrow flow channel, reproducing the scouring corrosion effect of the high shear region, and avoiding the test deviation caused by the single flow field of the traditional symmetrical impeller.

[0015] 2. In the utility model, the test piece is hung on the fixed strip by using the polyvinylidene fluoride material rope, the two ends of the fixed strip are slidably connected with the fixed groove, the fixed strip is fixed by the screwed fixed sleeve and cannot slide, the irregular shape test piece is fixed by adjusting the position of the knot and the horizontal position of the fixed strip, the device can flexibly adjust the test piece spacing and the suspension height by the plurality of connecting holes uniformly distributed on the surface of the fixed strip, thereby adapting to different size test pieces, and the device can batch fix the test pieces, thereby shortening the test period. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 A three-dimensional structure schematic view of a cooling liquid corrosion testing device is provided for the utility model;

[0017] Figure 2 A left side three-dimensional structure schematic view of a cooling liquid corrosion testing device is provided for the utility model;

[0018] Figure 3 A sealing cover opening schematic view of a cooling liquid corrosion testing device is provided for the utility model;

[0019] Figure 4 An explosion schematic view of a flexible impeller of a cooling liquid corrosion testing device is provided for the utility model;

[0020] Figure 5 An explosion schematic view of a fixing mechanism of a cooling liquid corrosion testing device is provided for the utility model.

[0021] LEGEND:

[0022] 1, base; 2, soak water tank; 3, fixed cover; 4, liquid storage tank; 5, connecting table; 6, liquid outlet pipe; 7, heater; 8, water chiller; 9, connecting pipe; 10, sealing ring; 11, flexible impeller; 12, rotating shaft; 13, liquid collecting tank; 14, fixing bolt; 15, motor; 16, observation window; 17, connecting hole; 18, fixed groove; 19, fixed sleeve; 20, fixed bar. DETAILED DESCRIPTION

[0023] 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 scope of protection of the utility model.

[0024] Referring to Figures 1-5 An embodiment provided by the utility model: a cooling liquid corrosion testing device, including base 1, base 1 left side fixedly connected with connecting table 5, connecting table 5 top is provided with liquid storage tank 4, the inner wall bottom of base 1 is fixedly connected with motor 15, the output of motor 15 is fixedly provided with rotating shaft 12, the surface of rotating shaft 12 is fixedly connected with flexible impeller 11, the top of base 1 is fixedly connected with soak water tank 2, the top of soak water tank 2 is slidably connected with fixed cover 3, and fixed cover 3 bottom is provided with fixed mechanism;

[0025] The eccentric blade layout of the flexible impeller 11 can form alternating high-pressure-low-pressure zones during rotation, thereby inducing non-uniform turbulence of the cooling liquid. At the same time, the asymmetric shear force generated by the flexible impeller 11 can disperse the agglomerated particles in the cooling liquid, improving the uniformity of the liquid distribution.

[0026] Referring to Figure 5 The fixed mechanism includes a fixed groove 18 fixedly connected between the fixed cover 3 and the fixed cover 3, and a fixed bar 20 slidably connected to the inner wall of the fixed groove 18. The surface of the fixed bar 20 is uniformly provided with connecting holes 17.

[0027] The left and right sides of the bottom of the fixed cover 3 are connected with the fixed grooves 18. The fixed bar 20 can be fixed below the fixed cover 3 through the fixed grooves 18, so that the test piece can be vertically hung, reducing horizontal occupation, and allowing multiple long test pieces to be arranged in the same soak water tank 2, so that the soak water tank 2 has strong expansion capacity. Since the inside of the soak water tank 2 needs to hold the cooling liquid and the test sample, the fixed bar 20 should be made of 316L stainless steel material. The 316L stainless steel material has good corrosion resistance, so as to avoid the degradation of the material of the fixed bar 20 caused by corrosion of the cooling liquid, which pollutes the test liquid.

[0028] Referring to Figure 4The inner wall of the base 1 is fixedly connected with a liquid collecting groove 13, the inner wall of the liquid collecting groove 13 is slidably connected with a fixing bolt 14, the top end of the fixing bolt 14 is threadedly connected with a sealing ring 10, the fixing bolt 14 can fix the liquid collecting groove 13 in the base 1, and the liquid collecting groove 13 and the sealing ring 10 are connected together, the sealing ring 10 can improve the sealing performance of the connection between the base 1 and the soaking tank 2, avoid leakage of the coolant, and enable the coolant in the soaking tank 2 to be collected in the liquid collecting groove 13, so that the coolant can be discharged after the test is completed.

[0029] With reference to Figure 1 The top of the liquid storage tank 4 is provided with a top cover, the bottom of the connecting table 5 is provided with a heater 7 and a cold water unit 8, the top cover on the top of the liquid storage tank 4 can store the coolant in the liquid storage tank 4, the heater 7 and the cold water unit 8 can accurately adjust the temperature of the coolant, simulate extreme hot and cold cycles, and improve the reliability of the test results.

[0030] With reference to Figure 5 The two ends of the fixing strip 20 are threadedly connected with fixing sleeves 19, the inner side surfaces of the fixing sleeves 19 are in close contact with the fixing grooves 18, the fixing sleeves 19 can clamp and loosen the fixing strip 20, so that the fixing strip 20 can slide in the fixing grooves 18 to adjust the position of the fixing strip 20 for fixing and containing when the test piece has an irregular shape.

[0031] With reference to Figure 2 The right side of the liquid storage tank 4 is fixedly connected with a connecting pipe 9, and the right side of the base 1 is fixedly connected with a liquid outlet pipe 6, the connecting pipe 9 can pass the coolant stored in the liquid storage tank 4 into the soaking tank 2 for detection, and the liquid outlet pipe 6 can discharge the coolant after detection, the inner walls of the liquid outlet pipe 6 and the connecting pipe 9 are coated with ceramic, so that the pipes are not corroded by the coolant to separate metal ions and pollute the coolant.

[0032] With reference to Figure 3 The flexible impeller 11 is made of fluororubber material, the fluororubber material has good acid and alkali resistance and oxidation resistance, so that the impeller can not be damaged due to corrosion, the fluororubber material has elasticity, can buffer the impact of the particle-containing fluid, and reduce wear; the flexible blade has low shear force on the fluid, is suitable for the coolant which is prone to shear degradation, and can avoid damaging the molecular structure of the coolant.

[0033] With reference to Figure 2 The top of the fixed cover 3 is provided with an observation window 16, and the top of the fixed cover 3 is provided with a handle, the observation window 16 can be used to observe the inside of the device, the handle on the top of the fixed cover 3 can be used to conveniently lift the fixed cover 3 and the test piece fixed to the bottom of the fixed cover 3, and the use of the device is more convenient.

[0034] Working principle: when the device is used for cooling liquid corrosion test, the test sample is fixed in 2, the cooling liquid is stored in 4, the cooling liquid to be tested is pumped into 2 through 9, 12 is rotated by starting 15, 11 is rotated by 12, at the same time, since 11 is located in 13, and 11 is eccentric with 13, 11 is flexible material, the rotation of 11 can make the cooling liquid in 2 produce non-uniform turbulent flow, so as to simulate the complex flow state in the narrow flow channel of engine cylinder, radiator and the like, reproduce the scouring corrosion effect of high shear area, avoid the test deviation caused by single flow field of traditional symmetrical impeller;

[0035] In the aspect of fixing the test sample, the test sample is hung on 20 by using a polyvinylidene fluoride rope, since the two ends of 20 are slidingly connected with 18, and 20 cannot slide by screwing 19, the irregularly shaped test sample can be fixed by adjusting the position of the knot and the horizontal position of 20, avoiding the size limitation of the traditional clamp, the device can flexibly adjust the test sample spacing and hanging height by the plurality of 17 uniformly distributed on the surface of 20, so as to adapt to test samples of different sizes, and at the same time, the device can batch fix test samples, thereby shortening the test cycle.

[0036] Finally, it should be pointed out that: the above only for the preferred embodiments of the utility model, and does not limit the utility model, although the utility model has been described in detail with reference to the foregoing embodiments, for the person skilled in the art, it still can modify the technical scheme recorded in the foregoing each embodiment, or make equivalent replacement to part of technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A coolant corrosion testing apparatus comprising a base (1) characterised in that: The left side of the base (1) is fixedly connected with a connecting table (5), the top of the connecting table (5) is provided with a liquid storage tank (4), the inner wall of the base (1) is fixedly connected with a motor (15) at the bottom, the output end of the motor (15) is fixedly provided with a rotating shaft (12), the surface of the rotating shaft (12) is fixedly connected with a flexible impeller (11), the top of the base (1) is fixedly connected with a soaking sink (2), the top of the soaking sink (2) is slidably connected with a fixed cover (3), and the bottom of the fixed cover (3) is provided with a fixing mechanism.

2. A coolant corrosion testing apparatus according to claim 1, wherein: The fixing mechanism comprises a fixing groove (18), the fixing groove (18) is fixedly connected between the fixed cover (3), and the inner wall of the fixing groove (18) is slidably connected with a fixing strip (20), and the surface of the fixing strip (20) is uniformly provided with a connecting hole (17).

3. A coolant corrosion testing apparatus as claimed in claim 1, wherein: The inner wall of the base (1) is fixedly connected with a liquid collecting groove (13), the inner wall of the liquid collecting groove (13) is slidably connected with a fixing bolt (14), and the top end of the fixing bolt (14) is threadedly connected with a sealing ring (10).

4. The coolant corrosion test apparatus of claim 1, wherein: The top of the liquid storage tank (4) is provided with a top cover, the bottom of the connecting table (5) is provided with a heater (7) and a water chilling unit (8).

5. A coolant corrosion testing apparatus as claimed in claim 2, wherein: The both ends of the fixing strip (20) are threadedly connected with a fixing sleeve (19), and the inner side surfaces of the fixing sleeve (19) are matched with the fixing groove (18).

6. The coolant corrosion test apparatus of claim 1, wherein: The right side of the liquid storage tank (4) is fixedly connected with a connecting pipe (9), and the right side of the base (1) is fixedly connected with a liquid outlet pipe (6).

7. The apparatus of claim 1, wherein: The flexible impeller (11) is made of fluorine rubber material.

8. The coolant corrosion test apparatus of claim 1, wherein: The top of the fixed cover (3) is provided with an observation window (16), and the top of the fixed cover (3) is provided with a handle.

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