High-reliability salt spray testing machine

Abstract

The utility model discloses a high-reliability salt spray testing machine which comprises a box body, an electrical bar arranged at the bottom of the box body, an atomizing nozzle fixedly connected to the side surface of the box body, a saline water pipe communicated with the atomizing nozzle, a water injection pipe communicated with the bottom of the box body, and an ultrasonic generator arranged at the top end of the box body, the exhaust pipe communicates with the box body, a support is arranged in the exhaust pipe, a fan motor is fixedly connected to the upper surface of the support, a bidirectional fan is fixedly connected to the output end of the fan motor, and an air return pipe communicates with the upper surface of the exhaust pipe; the grid plate is in sliding connection with the inner side wall of the box body, the grid plate is located between the atomization nozzle and the water injection pipe, and a settling tank is formed in the upper surface of the grid plate. By means of the components, the bidirectional fan can be used for stirring salt mist to enable the salt mist to be evenly distributed, the demisting function can be achieved, the ultrasonic generator is used for shaking and dispersing salt mist particles which are collided and gathered due to blowing of the fan, salt mist sedimentation is more even, and the temperature uniformity in the box can be improved through the microfluid effect.

Description

Technical Field

[0001] The utility model relates to the technical field of salt spray testing machines, in particular to a high-reliability salt spray testing machine. Background Art

[0002] Existing salt spray testers use fans to blow salt spray so that it can flow inside the device to speed up the test process. However, this does not take into account the problem that salt spray particles collide and aggregate together, resulting in excessive local sedimentation and uneven corrosion of the test piece. For example, a salt spray tester that is convenient for adjusting salt spray concentration is disclosed in a Chinese patent application number: CN202222491050.7. The fan blows air downward to keep the salt spray in a flowing state, so that the salt spray can fully contact the material. However, this does not take into account the problem that salt spray particles collide and aggregate, resulting in uneven local corrosion. Utility Model Content

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and provide a high-reliability salt spray tester. A bidirectional fan is used to stir the salt spray to make it evenly distributed and to perform a demisting function. An ultrasonic generator is used to shake off the salt spray particles that collide and aggregate due to the blowing of the fan, so that the salt spray settles more evenly. The microfluidic effect can also be used to increase the temperature uniformity in the box.

[0004] The utility model also provides the above-mentioned high-reliability salt spray testing machine, comprising: a box body, an electric heating rod is provided at the bottom of the box body, an atomizing nozzle is fixedly connected to the side surface of the box body, the atomizing nozzle is connected to a brine pipe, the brine pipe passes through the box body and is connected to brine, the bottom of the box body is connected to a water injection pipe, the water injection pipe passes through the box body and is connected to tap water, an ultrasonic generator is provided at the top of the box body; an exhaust pipe, the exhaust pipe is connected to the box body, a bracket is provided inside the exhaust pipe, a fan motor is fixedly connected to the upper surface of the bracket, a two-way fan is fixedly connected to the output end of the fan motor, an electric heating wire is provided inside the exhaust pipe, the electric heating wire is located on the side of the two-way fan, the upper surface of the exhaust pipe is connected to an air return pipe, and a valve is provided at the connection between the air return pipe and the exhaust pipe; a grid plate, the grid plate is slidably connected to the inner wall of the box body, the grid plate is located between the atomizing nozzle and the water injection pipe, and a baffle is fixedly connected to the front of the grid plate. Through the above components, a bidirectional fan can be used to stir the salt mist to make it evenly distributed, and it can also serve as a defogger. An ultrasonic generator is used to shake off the salt mist particles that collide and aggregate due to the blowing of the fan, making the salt mist sedimentation more uniform. The microfluidic effect can also be used to increase the temperature uniformity in the box.

[0005] According to the high-reliability salt spray tester of the present invention, a temperature sensor is provided on the side of the box body, and the temperature sensor is located above the atomizing nozzle. Through these components, the temperature inside the box can be monitored in real time, thereby achieving temperature control inside the box.

[0006] According to the high-reliability salt spray tester of the present invention, a water baffle is provided on the front of the box body, and a door is provided just above the water baffle. Through the above components, the water baffle can store water injected by the water injection pipe, and the door can facilitate the placement of the test piece.

[0007] According to the high-reliability salt spray tester of the present invention, the door is rotatably connected to the top of the box body, and a glass window is provided on the front of the door. These components facilitate the opening and closing of the door, and the glass window facilitates observation of the salt spray and the test piece during the test.

[0008] According to the high reliability salt spray tester of the present invention, the front of the door is fixedly connected to a handle, and the handles are provided in two pieces and located on both sides of the door. With the above components, it is convenient for the staff to open and close the door.

[0009] According to the high-reliability salt spray tester of the present invention, a graduated cylinder is provided on the side surface of the box, and a water pipe is connected to the upper surface of the graduated cylinder. Through the above components, the settled salt spray can be introduced into the graduated cylinder to measure the amount of salt spray settled therein.

[0010] According to the high-reliability salt spray tester of the present invention, the end of the water pipe away from the measuring cylinder passes through the box body and is connected to a sedimentation hopper, which is located directly above the grid plate. Through these components, salt spray settled in a certain area can be introduced into the water pipe through the sedimentation hopper.

[0011] According to the high-reliability salt spray testing machine of the present invention, a drainage hole is provided at the bottom of the box body to facilitate the drainage of waste water used in the test. Beneficial effects

[0012] Compared with the existing technology, the utility model is provided with an ultrasonic generator. When the bidirectional fan blows the salt mist and the electric heating rod heats and humidifies, the salt mist particles gathered together in the process are shaken away, so that the salt mist particles can be evenly distributed and settled. The microfluidic effect generated when the ultrasonic generator is used can also increase the temperature uniformity in the box. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0014] Figure 1 This is a schematic diagram of the overall structure of the high reliability salt spray testing machine of the utility model;

[0015] Figure 2This is a schematic diagram of the top view of the high reliability salt spray testing machine of the utility model;

[0016] Figure 3 This is a schematic diagram of the front structure of the high reliability salt spray testing machine of the utility model;

[0017] Figure 4 This is a schematic diagram of the front cross-sectional structure of the utility model high reliability salt spray testing machine;

[0018] Figure 5 This is the utility model of high reliability salt spray test machine Figure 4 Schematic diagram of the structure at A in the middle;

[0019] Figure 6 This is the utility model of high reliability salt spray test machine Figure 4 Schematic diagram of the structure at point B in the middle.

[0020] Legend:

[0021] 1. Box body; 2. Electric heating rod; 3. Atomizing nozzle; 4. Brine pipe; 5. Water injection pipe; 6. Ultrasonic generator; 7. Exhaust pipe; 8. Bracket; 9. Fan motor; 10. Two-way fan; 11. Heating wire; 12. Return air pipe; 13. Valve; 14. Grid plate; 15. Baffle; 16. Temperature sensor; 17. Water baffle; 18. Door; 19. Glass window; 20. Handle; 21. Measuring cylinder; 22. Water guide pipe; 23. Sedimentation bucket; 24. Drain hole. DETAILED DESCRIPTION

[0022] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0023] Reference Figure 1-6, The high reliability salt spray tester of the utility model embodiment comprises: a box body 1, a closed test environment, an electric heating rod 2 is provided at the bottom of the box body 1 to heat water to humidify and assist heating in the box, an atomizing nozzle 3 is fixedly connected to the side surface of the box body 1, which converts salt water into salt spray and sprays it into the box, the atomizing nozzle 3 is connected with a salt water pipe 4 to introduce salt water into the atomizing nozzle 3, the salt water pipe 4 passes through the box body 1 and is connected with salt water, the bottom of the box body 1 is connected with a water injection pipe 5 to inject water into the inside of the box body 1, the water injection pipe 5 passes through the box body 1 and is connected with tap water, an ultrasonic generator 6 is provided at the top of the box body 1 to disperse the gathered salt spray particles and generate a microfluidic effect to make the temperature inside the box body 1 more uniform, a temperature sensor 16 is provided on the side of the box body 1 to detect the temperature inside the box body 1, the temperature sensor 16 is located above the atomizing nozzle 3 to detect the salt spray above to prevent inaccurate detection results, the front of the box body 1 A water baffle 17 is provided to form a water trough for storing water. A door 18 is provided just above the water baffle 17 for convenient placement of the test piece. The door 18 is rotatably connected to the top of the box body 1 for convenient opening and closing of the door 18. A glass window 19 is provided on the front of the door 18 for convenient observation of the test piece and the salt spray. A handle 20 is fixedly connected to the front of the door 18 for convenient opening and closing of the door 18. The handle 20 has two and is located on both sides of the door 18. A graduated cylinder 21 is provided on the side surface of the box body 1 for storing and measuring the amount of salt spray flowing in. The upper surface of the graduated cylinder 21 is connected with a water guide pipe 22 for introducing the settled salt spray into the graduated cylinder 21. The water guide pipe 22 is connected to a sedimentation bucket 23 away from one end of the graduated cylinder 21 and penetrates the box body 1 for being connected to a sedimentation bucket 23. The salt spray settled in a certain area is introduced into the water guide pipe 22. The sedimentation bucket 23 is located just above the grid plate 14, so that the sedimentation detected is closer to the sedimentation of the test piece surface. A drainage hole 24 is provided at the bottom of the box body 1 for convenient discharge of the waste water inside the box body 1.

[0024] The exhaust pipe 7 is used to remove the salt mist from the box body 1 after the test is completed. The exhaust pipe 7 is connected to the box body 1. A bracket 8 is provided inside the exhaust pipe 7 for supporting a fan motor 9. The upper surface of the bracket 8 is fixedly connected to the fan motor 9 to provide power for the rotation of the two-way fan 10. The output end of the fan motor 9 is fixedly connected to the two-way fan 10, which can blow air into the box body 1 to make the salt mist particles more evenly distributed and cool the inside of the box body 1, or blow the air heated by the heating wire 11 into the box body 1 to heat it. After the test is completed, the salt mist in the box body 1 can be sucked into the exhaust pipe 7. The exhaust pipe 7 is provided with a heating wire 11 to heat the gas inside the box body 1. The heating wire 11 is located on the side of the two-way fan 10, which is convenient for blowing the heated air into the box body 1. The upper surface of the exhaust pipe 7 is connected with a return air pipe 12 to realize the air circulation inside the box body 1. The return air pipe 12 is provided with a valve 13 at the connection point with the exhaust pipe 7 for controlling the internal circulation of the gas or the discharge of the salt mist from the exhaust pipe 7.

[0025] The grid plate 14 receives the test piece and leaks the excess salt mist to the bottom of the box. The grid plate 14 is slidably connected to the inner wall of the box body 1 to facilitate the placement of the test piece. The grid plate 14 is located between the atomizing nozzle 3 and the water injection pipe 5, so that the salt mist sprayed into the box body 1 can normally settle on the surface of the test piece. The front of the grid plate 14 is fixedly connected to a baffle 15 to prevent the grid plate 14 from colliding with the inner wall of the box body 1.

[0026] Working principle: When the device is used, open the door 18, pull out the grid plate 14, place the test piece on the upper surface of the grid plate 14, push the grid plate 14 into the box 1, close the door 18, inject water into the box 1 through the water injection pipe 5, inject brine through the brine pipe 4, and the brine is converted into salt mist through the atomizing nozzle 3 and sprayed into the box 1. Start the fan motor 9, and the two-way fan 10 rotates to blow the salt mist inside the box 1 to form a cycle through the return air pipe 12. Turn on the ultrasonic generator 6 to shake off the accumulated salt mist particles, so that the distribution and sedimentation of the salt mist particles are more uniform. If the humidity is not enough, start the electric heating rod 2 to irrigate the water. Heat to generate water vapor to humidify the inside of the box 1, and measure the temperature inside the box 1 through the temperature sensor 16. If the temperature is too low, turn on the heating wire 11 to form a hot air circulation inside the box 1 to heat the inside of the box 1. After the test is completed, turn the valve 13 to block the return air pipe 12, open the exhaust pipe 7, and reverse the fan motor 9 so that the two-way fan 10 sucks the salt mist inside the box 1 into the exhaust pipe 7 to prevent salt mist leakage. The waste water inside the box 1 is discharged through the drain hole 24. Then, check the salt mist deposition amount inside the measuring cylinder 21, and estimate the salt mist deposition amount on the surface of the specimen to obtain the test data.

[0027] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. High reliability salt spray test machine, characterized by, include: A box body (1), an electric heating rod (2) is provided at the bottom of the box body (1), an atomizing nozzle (3) is fixedly connected to the side surface of the box body (1), the atomizing nozzle (3) is connected to a brine pipe (4), the brine pipe (4) passes through the box body (1) and is connected to brine, the bottom of the box body (1) is connected to a water injection pipe (5), the water injection pipe (5) passes through the box body (1) and is connected to tap water, and an ultrasonic generator (6) is provided at the top of the box body (1); An exhaust pipe (7), the exhaust pipe (7) is connected to the box (1), a bracket (8) is provided inside the exhaust pipe (7), a fan motor (9) is fixedly connected to the upper surface of the bracket (8), a bidirectional fan (10) is fixedly connected to the output end of the fan motor (9), an electric heating wire (11) is provided inside the exhaust pipe (7), the electric heating wire (11) is located on the side of the bidirectional fan (10), the upper surface of the exhaust pipe (7) is connected to a return air pipe (12), and a valve (13) is provided at the connection between the return air pipe (12) and the exhaust pipe (7); A grid plate (14) is slidably connected to the inner wall of the box body (1), the grid plate (14) is located between the atomizing nozzle (3) and the water injection pipe (5), and a baffle (15) is fixedly connected to the front of the grid plate (14).

2. The high reliability salt spray tester according to claim 1, characterized in that: A temperature sensor (16) is provided on the side of the box (1), and the temperature sensor (16) is located above the atomizing nozzle (3).

3. The high reliability salt spray tester according to claim 1, characterized in that: A water baffle (17) is provided on the front of the box body (1), and a door (18) is provided directly above the water baffle (17).

4. The high reliability salt spray tester according to claim 3, characterized in that: The door (18) is rotatably connected to the top of the box body (1), and a glass window (19) is provided on the front of the door (18).

5. The high reliability salt spray tester according to claim 3, characterized in that: A handle (20) is fixedly connected to the front of the door (18), and there are two handles (20) located on both sides of the door (18).

6. The high reliability salt spray tester according to claim 1, characterized in that: A measuring cylinder (21) is provided on the side surface of the box body (1), and the upper surface of the measuring cylinder (21) is connected to a water pipe (22).

7. The high reliability salt spray tester according to claim 6, characterized in that: One end of the water pipe (22) away from the measuring cylinder (21) passes through the box (1) and is connected to a sedimentation bucket (23), and the sedimentation bucket (23) is located directly above the grid plate (14).

8. The high reliability salt spray testing machine according to claim 1, characterized in that: A drainage hole (24) is provided at the bottom of the box body (1).

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