A salt spray test chamber
The salt spray test box addresses the high cost issue of multiple chamber usage by allowing simultaneous testing of diverse samples with controlled environments and reusable salt solutions, enhancing accuracy and reducing equipment needs.
Patent Information
- Application Number
- CN201811645165.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2018-12-29
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2038-12-29
AI Technical Summary
Existing salt spray test chambers require multiple units to accommodate different test samples, leading to high costs due to their limited adaptability and interference between tests.
A salt spray test box with independent and openable placement spaces, controlled temperature, humidity, and salt concentration, and a controller for individual sample environments, allowing simultaneous testing without interference.
Accurate simulation of actual working environments for multiple samples, reducing equipment costs by enabling simultaneous testing and reusing salt solutions.
Smart Images
Figure CN109596509B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of detection technology, in particular to a salt spray test box. Background Art
[0002] Salt spray test chamber, also known as salt spray corrosion test chamber, can assess the ability of materials and their protective layers to resist salt spray corrosion, as well as the process quality comparison of similar protective layers, and can also assess the ability of certain products to resist salt spray corrosion; it is suitable for salt spray corrosion tests of parts, electronic components, protective layers of metal materials, and industrial products. For third-party testing and certification agencies specializing in testing services, the samples they test are very numerous. Since the working environments of different test samples are different, if the existing salt spray test chambers are used, a large number of them are needed to complete the testing of different samples, which is very costly. Summary of the invention
[0003] The purpose of the present invention is to overcome the defects of the prior art and provide a salt spray test box with strong applicability.
[0004] The purpose of the present invention can be achieved by the following technical scheme: a salt spray test box, including a box body, a salt liquid storage tank, a salt spray pipe and a reflux pipe, a plurality of independent and openable placement spaces are arranged inside the box body, a temperature sensor, a salt concentration sensor and a temperature regulator are arranged in each placement space, two salt liquid storage tanks are arranged, one of which is used to place low-concentration salt liquid and the other is used to place high-concentration salt liquid, both salt liquid storage tanks are provided with salt spray pipes, and two salt spray pipes pass through each placement space, and salt spray nozzles are arranged on the salt spray pipes passing through the placement space, and the salt spray test box is provided with a controller for controlling the nozzle flow, and the controller is connected to the temperature sensor, the salt concentration sensor and the temperature regulator. The present invention can control the temperature, humidity and salt concentration in each placement space separately through the controller, so that the environment of the sample to be tested is closer to the actual working environment or the environment specified by the standard, and all the placement spaces do not interfere with each other, and different samples can be tested at the same time.
[0005] Each of the placement spaces is provided with a drain port at the bottom, and a drain pipe is provided at the drain port, and the lower end outlet of the drain pipe is placed at the bottom of the box. The salt mist in the placement space condenses on the inner wall of the placement space and flows down, and is discharged to the bottom of the box through the drain pipe.
[0006] The salt spray test box is provided with a waste liquid recovery tank, and a waste liquid port is provided at the bottom of the box body, and the waste liquid port is connected to the waste liquid recovery tank through a reflux pipe. The ends of the two salt spray pipes are emptied into the box body, and the salt spray condenses on the inner wall of the box body and flows down, and is collected with the condensed liquid from the placement space to the waste liquid port, and then flows back to the waste liquid recovery tank through the reflux pipe. This part of the waste liquid can be reused by adding water or salt.
[0007] The two salt solution storage tanks are provided with liquid level sensors, which are connected to the controller, and the salt spray test box is provided with an alarm light, which is connected to the controller. This setting can monitor the volume of the salt solution in the salt solution storage tank to avoid drying up.
[0008] Preferably, the box body is provided with 5 to 15 placement spaces.
[0009] Preferably, the controller is a PLC controller.
[0010] Compared with the prior art, the beneficial effects of the present invention are embodied in the following aspects:
[0011] (1) The temperature, humidity and salt concentration in each placement space can be individually controlled by the controller, so that the environment of the test sample is closer to the actual working environment or the environment specified by the standard, and the test results are more accurate;
[0012] (2) All placement spaces do not interfere with each other, and different samples can be tested at the same time, reducing equipment costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural schematic diagram of the present invention.
[0014] Among them, 1 is a box body, 2 is a high-concentration salt solution storage tank, 3 is a low-concentration salt solution storage tank, 4 is a liquid level sensor, 5 is a salt spray pipe, 6 is a placement space, 7 is a salt spray nozzle, 8 is a temperature sensor, 9 is a salt concentration sensor, 10 is a temperature regulator, 11 is a drain port, 12 is a drain pipe, 13 is a waste liquid recovery tank, 14 is a waste liquid port, and 15 is a reflux pipe. DETAILED DESCRIPTION
[0015] The following is a detailed description of an embodiment of the present invention. This embodiment is implemented on the premise of the technical solution of the present invention, and a detailed implementation method and a specific operation process are given, but the protection scope of the present invention is not limited to the following embodiment.
[0016] Example 1
[0017] A salt spray test chamber, the structure of which is as follows Figure 1As shown, it includes a box 1, a high-concentration salt solution storage tank 2, a low-concentration salt solution storage tank 3, a salt spray pipe 5 and a reflux pipe 15, and eight independent and openable placement spaces 6 are arranged inside the box 1, and each placement space 6 is provided with a temperature sensor 8, a salt concentration sensor 9 and a temperature regulator 10, wherein the high-concentration salt solution storage tank 2 and the low-concentration salt solution storage tank 3 are both provided with a salt spray pipe 5, and two salt spray pipes 5 pass through each placement space 6, and a salt spray nozzle 7 is arranged in the salt spray pipe 5 passing through the placement space 6, and the salt spray test box is provided with a PLC controller for controlling the nozzle flow, and the PLC controller is connected to the temperature sensor 8, the salt concentration sensor 9 and the temperature regulator 10. The mass fraction of the salt solution placed in the high-concentration salt solution storage tank 2 is 10%, and the mass fraction of the salt solution placed in the low-concentration salt solution storage tank 3 is 2%.
[0018] Each placement space 6 is provided with a drain port 11 at the bottom, and a drain pipe 12 is provided at the drain port 11, and the lower end outlet of the drain pipe 12 is placed at the bottom of the box body 1. The salt mist in the placement space 6 condenses on the inner wall of the placement space 6 and is discharged to the bottom of the box body 1 through the drain pipe 12.
[0019] The salt spray test box is provided with a waste liquid recovery tank 13, and a waste liquid port 14 is provided at the bottom of the box body 1, and the waste liquid port 14 is connected to the waste liquid recovery tank 13 through a reflux pipe 15. The ends of the two salt spray pipes 5 are emptied into the box body 1, and the salt spray condenses on the inner wall of the box body 1 and flows down, and is collected with the condensed liquid from the placement space 6 to the waste liquid port 14, and then flows back to the waste liquid recovery tank 13 through the reflux pipe 15. This part of the waste liquid can be reused by adding water or salt.
[0020] The high-concentration salt solution storage tank 2 and the low-concentration salt solution storage tank 3 are both provided with a liquid level sensor 4, which is connected to a controller, and the salt spray test chamber is provided with an alarm light, which is connected to the controller. This setting can monitor the volume of the salt solution in the salt solution storage tank to avoid drying up.
Claims
1. A salt spray test box, comprising a box body, a salt solution storage tank, a salt spray pipe and a reflux pipe, characterized in that: A plurality of independent and openable placement spaces are provided inside the box, each placement space is provided with a temperature sensor, a salt concentration sensor and a temperature regulator, two salt solution storage tanks are provided, one of which is used to place low-concentration salt solution and the other is used to place high-concentration salt solution, both salt solution storage tanks are provided with salt spray pipes, and the two salt spray pipes pass through each placement space, and salt spray nozzles are provided on the salt spray pipes passing through the placement space, and the salt spray test box is provided with a controller for controlling the nozzle flow, and the controller is connected to the temperature sensor, the salt concentration sensor and the temperature regulator; the temperature, humidity and salt concentration in each placement space are individually controlled by the controller, so that the environment of the sample to be tested is close to the actual working environment or the environment specified by the standard, and all the placement spaces do not interfere with each other, and different samples are tested at the same time; A drain port is provided at the bottom of each placement space, and a drain pipe is provided at the drain port, and the lower end outlet of the drain pipe is placed at the bottom of the box body; the salt mist in the placement space condenses on the inner wall of the placement space and flows down, and is discharged to the bottom of the box body through the drain pipe; The salt spray test box is provided with a waste liquid recovery tank, and a waste liquid port is provided at the bottom of the box body, and the waste liquid port is connected to the waste liquid recovery tank through a reflux pipe; the ends of the two salt spray pipes are emptied into the box body, and the salt spray condenses on the inner wall of the box body and flows down, and is collected with the condensate from the placement space to the waste liquid port, and then flows back to the waste liquid recovery tank through the reflux pipe; this part of the waste liquid is reused by adding water or salt; The box body is provided with 5 to 15 placement spaces.
2. A salt spray test chamber according to claim 1, characterized in that: Liquid level sensors are arranged in the two salt solution storage tanks, and the liquid level sensors are connected to a controller. The salt spray test box is provided with an alarm light, and the alarm light is connected to the controller.
3. A salt spray test chamber according to any one of claims 1 to 2, characterized in that: The controller is a PLC controller.
Citation Information
Patent Citations
Novel salt fog corrosion test case
CN204831988U
Salt spray test box
CN209589789U