Water replenishing device of humidity-controllable circulating salt spray corrosion test box

Abstract

The utility model discloses a water replenishing device of a humidity-controllable circulating salt spray corrosion test chamber, which comprises a pure water tank and a partition cabinet, and the pure water tank extends along a first direction and comprises a water storage chamber. A water supplementing opening is formed in the top of the side wall of one side of the pure water tank along the second direction and is communicated with an external total pure water tank pipeline. The partition cabinet is arranged at the bottom of the pure water tank and is internally provided with a filtering device and a self-priming pump. One end of the self-priming pump is communicated with the water storage chamber through a pipeline, the other end of the self-priming pump is communicated with the experimental box through a pipeline, the self-priming pump is used for pressurizing and pumping pure water in the water storage chamber into the humidity-controllable circulating salt spray corrosion test box, and the first direction is perpendicular to the second direction. According to the water replenishing device provided by the invention, the pure water stored in the pure water tank is conveyed into the humidity-controllable circulating salt spray corrosion test box through the self-priming pump, so that the damage to equipment components caused by the fact that the humidity-controllable circulating salt spray corrosion test box is dried up in a working state due to the fact that the total pure water tank cannot supply water is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to test box technical field, concretely relates to a controllable humidity circulating salt mist corrosion test chamber's water replenishing device. BACKGROUND

[0002] Controllable humidity circulating salt mist corrosion test is to place test piece in the spray, the different environment of the repeated circulation series between the humidity control and the spraying function, mainly is dry and wet alternate mixed salt mist and spray test. The complex test procedure especially the automobile test requires the multi-step cycle of humidity, salt mist and spraying and drying. The simulated environment is more close to the real atmospheric environment. Controllable humidity circulating salt mist corrosion test is an important method for quantitatively and qualitatively evaluating the corrosion resistance of materials. It also promotes the development and progress of material science, chemistry, corrosion science and other fields.

[0003] When carrying out controllable humidity circulating salt mist corrosion test, the test conditions need to be strictly controlled, and the temperature and humidity of the controllable humidity circulating salt mist corrosion test chamber must be accurately controlled within the standard deviation range. The stable control of temperature and humidity is crucial to the corrosion conditions, and directly affects the authenticity and reliability of the test results.

[0004] When testing, the temperature and humidity control of the controllable humidity circulating salt mist corrosion test chamber is achieved by providing a device bubble tower and pure water at the bottom of the tank, under the mutual interaction of compressed air, heater and humidity generator, the temperature and humidity in the controllable humidity circulating salt mist corrosion test chamber are floated within the standard required range. The pure water required for the controllable humidity circulating salt mist corrosion test chamber must meet ASTM D1193 Type IV.

[0005] The controllable humidity circulating salt mist corrosion test chamber is directly connected with the total pure water tank shared by the production line. Since the total pure water tank needs to supply pure water to multiple tanks and other equipment of the production line, the total pure water tank is prone to shortage or even unable to supply water, which leads to the failure of the equipment temperature and humidity to meet the standard deviation requirements (±2℃ and ±4%) and alarm, the corrosion amount of the periodic test piece is uneven, and the test piece cannot be evaluated truly and effectively. INVENTION CONTENTS

[0006] To overcome the above-mentioned shortcomings, the purpose of the utility model is to provide a controllable humidity circulating salt mist corrosion test chamber water replenishing device to solve the problem of total pure water tank shortage or even unable to supply water in the above background technology.

[0007] In order to achieve the above purpose, the utility model adopts the technical scheme of a controllable humidity circulating salt mist corrosion test chamber water replenishing device, which comprises:

[0008] The pure water tank extends along a first direction and comprises a water storage chamber.

[0009] The separation cabinet is arranged at the bottom of the pure water tank and internally comprises a filter device and a self-priming pump.

[0010] One end of the self-priming pump is in pipeline communication with the water storage chamber, and the other end is in pipeline communication with the test tank, for pressurizing and pumping the pure water in the water storage chamber into the controllable humidity circulating salt spray corrosion test tank, and the first direction and the second direction are perpendicular to each other.

[0011] The water replenishing device provided by the utility model can transport the pure water stored in the pure water tank into the controllable humidity circulating salt spray corrosion test tank through the self-priming pump, avoid the damage of the equipment components caused by the dryness of the controllable humidity circulating salt spray corrosion test tank in the working state due to the failure of the total pure water tank to supply water, and ensure the non-pollution state of the water quality in the closed state.

[0012] In some embodiments, the water replenishing device further comprises a filter device. The filter device comprises a cylinder, a water inlet pipe and a water outlet pipe.

[0013] The above technical solution can replace the activated carbon filter assembly flexibly and conveniently, adsorb and filter the pure water, and further ensure that the pure water transported into the controllable humidity circulating salt spray corrosion test tank meets the standard requirements.

[0014] In some embodiments, an electromagnetic valve is arranged at the water replenishing port for shutting off or conducting the water replenishing port.

[0015] The above technical solution can replenish water when the water level in the pure water tank is too low, and shut off the water replenishing port when the water storage amount in the pure water tank is sufficient.

[0016] In some embodiments, a float ball liquid level sensor is arranged in the pure water tank for detecting the water level in the pure water tank,

[0017] The technical scheme is adopted, the float ball liquid level sensor is composed of a magnetic reed switch and a float ball, the float ball is made of magnetic material, one or more magnetic reed switches are arranged in a closed non-magnetic metal pipe or plastic pipe, then a guide pipe is passed through the one or more float balls with magnetic material, and a fixed double ring is used to control the float ball and the magnetic reed switch in the relevant position, the float ball rises or falls along with the liquid, and the contact point near the magnetic reed switch in the ball is used to generate the opening and closing action.

[0018] In some embodiments, the pure water tank is provided with a water level display pipe on the side wall of the cold side in the second direction. The water level display pipe extends in the first direction and communicates with the water storage chamber at both ends.

[0019] The technical scheme is adopted, the water level display pipe communicates with the water storage chamber at both ends, the water level thereof is synchronous with the water level in the water storage chamber, and it is convenient for the staff to observe and confirm.

[0020] In some embodiments, the water replenishing device further comprises a controller. The controller is arranged in the partition cabinet. The float ball liquid level sensor and the electromagnetic valve are connected with the controller, so as to drive the electromagnetic valve to be turned on when the float ball liquid level sensor detects that the water level in the pure water tank is lower than a set value.

[0021] The technical scheme is adopted, when the water level in the pure water tank is lower than the magnetic spring of the float ball of the float ball liquid level sensor, the float ball falls to the magnetic spring position and transmits the corresponding liquid level information to the controller, the controller controls the electromagnetic valve to be opened, the pure water in the total pure water tank shared by the production line is automatically replenished into the pure water tank, when the automatic replenishment reaches the magnetic spring of the float ball of the liquid level sensor, the float ball floats to the magnetic spring, the controller controls the electromagnetic valve to be automatically closed, and the replenishment action is stopped.

[0022] In some embodiments, the water storage tank is made of stainless steel.

[0023] The technical scheme is adopted, the stainless steel has the characteristics of corrosion resistance, and the pure water tank can be prevented from being corroded.

[0024] In some embodiments, the partition cabinet is provided with a switch door on one side in a third direction, which is used to close or open the partition cabinet. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a perspective view of an embodiment of a water replenishing device of a controllable humidity circulating salt spray corrosion test box of the utility model;

[0026] In the drawings:

[0027] 1 - water replenishing device; 2 - pure water tank; 20 - water replenishing port; 21 - electromagnetic valve; 3 - partition cabinet; 30 - self-priming pump; 31 - filtering device; 32 - cylinder; 33 - water inlet pipe; 34 - water outlet pipe; 4 - water level display pipe. DETAILED DESCRIPTION

[0028] The advantages and features of the present application will be more apparent from the following detailed description of preferred embodiments of the present application, taken in conjunction with the accompanying drawings, in which:

[0029] The implementation of the present application will be described by specific embodiments, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present specification.

[0030] It should be understood that, in the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance. The terms "horizontal", "vertical", "overhanging" and the like do not mean that the components must be absolutely horizontal or overhanging, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "mounted", "connected", "linked" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, it can be the communication between the two elements inside. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0033] Reference Figure 1 , Figure 1 shows a perspective view of a water replenishing device of a controllable humidity cyclic salt spray corrosion test chamber provided by an embodiment of the present utility model.

[0034] As Figure 1 shown, the technical solution provided by the present application is a water replenishing device 1 of a controllable humidity cyclic salt spray corrosion test chamber, including a pure water tank 2 and a partition cabinet 3. Among them, the pure water tank 2 extends along a first direction ( Figure 1 shown as the Z direction in Figure 1 ), and includes a water storage chamber. At the top of the side wall on one side of the pure water tank 2 along a second direction (

[0035] shown as the X direction in

[0036] ), a water replenishing port 20 is provided for communicating with an external total pure water tank pipeline. The partition cabinet 3 is arranged at the bottom of the pure water tank 2, and a filtering device 31 and a self-priming pump 30 are arranged inside. One end of the self-priming pump 30 is communicated with the water storage chamber through a pipeline, and the other end is communicated with the test chamber through a pipeline, and is used to pressurize and pump the pure water in the water storage chamber into the controllable humidity cyclic salt spray corrosion test chamber. The first direction and the second direction are perpendicular to each other.

[0035] For the water replenishing device 1 provided by the present application, the pure water stored in the pure water tank 2 is transported into the controllable humidity cyclic salt spray corrosion test chamber through the self-priming pump 30, avoiding damage to the equipment components caused by the dryness of the controllable humidity cyclic salt spray corrosion test chamber during the working state due to the inability of the total pure water tank to supply water. In addition, in this solution, the pure water tank 2 is placed above the partition cabinet 3 and is set away from the ground. At the same time, the non-polluted state of the water quality is ensured in a closed state, avoiding the corrosion of stainless steel and other corrosion-resistant components in the controllable humidity cyclic salt spray corrosion test chamber due to the problem of pure water quality over a long time and affecting the accuracy of the experiment.

[0036] Specifically, the self-priming pump 30 is an automatic pressure variable frequency constant pressure self-priming pump 30, and the model is selected as Xiling self-priming pump 30 (600W) 25GZHB1-25. Under the action of the automatic pressure variable frequency constant pressure self-priming pump 30, the pipeline pressure of the water tank to the controllable humidity circulating salt spray tank is kept between 2 kg and 3 kg. When the pressure is lower than 2 kg, the automatic water replenishment is performed to keep the pure water flow and pressure of the controllable humidity circulating salt spray corrosion tank stable, so that the equipment temperature and humidity are stably controlled within the standard deviation range, and the damage to the equipment caused by the fluctuation of the temperature and humidity in the tank beyond the allowable range of the equipment is avoided. The uniformity of the corrosion amount of the periodic test piece (6 weeks) and the authenticity, effectiveness, repeatability and reproducibility of the results of the salt spray corrosion test cycle (4 weeks-12 weeks) of the test piece are ensured. At the same time, the center and the customer can obtain real and standard curve graphs.

[0037] In some embodiments, referring to Figure 1 , the water replenishing device 1 further comprises a filtering device 31. The filtering device 31 comprises a cylinder 32, a water inlet pipe 33 and a water outlet pipe 34. The cylinder 32 is internally provided with an activated carbon filtering assembly. One end of the water inlet pipe 33 and one end of the water outlet pipe 34 are respectively in communication with the bottom of the cylinder 32, the other end of the water inlet pipe 33 is in communication with the water storage chamber, and the other end of the water outlet pipe 34 is in communication with the self-priming pump 30.

[0038] Exemplarily, the activated carbon filtering assembly is flexible and convenient to replace, and the pure water is adsorbed and filtered, so that the pure water delivered into the controllable humidity circulating salt spray corrosion test tank meets the standard requirements.

[0039] In some embodiments, referring to Figure 1 , an electromagnetic valve 21 is arranged at the water replenishing port 20, and is used to shut off or open the water replenishing port 20.

[0040] Exemplarily, the model of the electromagnetic valve 21 is selected as GH / Gongheng electromagnetic valve 212W-160-15. When the water level in the pure water tank 2 is too low, the water replenishing port 20 is opened to replenish water. When the water storage amount in the pure water tank 2 is sufficient, the water replenishing port 20 is shut off.

[0041] In some embodiments, referring to Figure 1 , a floating ball liquid level sensor is arranged in the pure water tank 2, and is used to detect the water level in the pure water tank 2,

[0042] Exemplarily, the type of the floating ball liquid level sensor is selected as Kona Si L-type floating ball liquid level sensor SUS304 / 316. The floating ball liquid level sensor is composed of a magnetic reed switch and a floating ball. The floating ball is internally provided with magnetic material. One or more magnetic reed switches are arranged in a closed non-magnetic metal pipe or plastic pipe. Then, a guide pipe is passed through one or more floating balls with magnetic material, and a fixed double ring is used to control the floating ball and the magnetic reed switch in the related position. The floating ball rises or falls with the liquid. The contact point near the magnetic reed switch in the ball is used to generate the opening and closing actions.

[0043] In some embodiments, referring to Figure 1 , on the side wall of the cold side of the pure water tank 2 along the second direction, a water level display tube 4 is provided. The water level display tube 4 extends along the first direction, and both ends are communicated with the water storage chamber.

[0044] Exemplarily, both ends of the water level display tube 4 are communicated with the water storage chamber, and its water level is synchronized with the water level in the water storage chamber, which is convenient for the staff to observe and confirm.

[0045] In some embodiments, referring to Figure 1 , the water replenishing device 1 further includes a controller. The controller is arranged in the partition cabinet 3. The float level sensor and the solenoid valve 21 are both connected to the controller, and are used to drive the solenoid valve 21 to conduct when the float level sensor detects that the water level in the pure water tank 2 is lower than the set value.

[0046] Exemplarily, when the water level in the pure water tank 2 is lower than the magnetic reed of the float of the float level sensor, the float drops to the magnetic reed position and transmits the corresponding liquid level information to the controller. The controller controls the solenoid valve 21 to open, and the pure water in the total pure water tank shared by the production line is automatically replenished into the pure water tank 2. When the automatic replenishment reaches the magnetic reed of the float of the liquid level sensor in the tank, the float floats to the magnetic reed, and the controller controls the solenoid valve 21 to automatically close and stop the replenishment action.

[0047] In some embodiments, referring to Figure 1 , the water storage tank is made of stainless steel.

[0048] Exemplarily, the stainless steel material has the characteristic of corrosion resistance, which can avoid the pure water tank 2 from being corroded.

[0049] In some embodiments, referring to Figure 1 , on one side of the partition cabinet 3 along the third direction ( Figure 1 shown as the Y direction in

[0050] ), a switch door (not shown in the figure) is provided for closing or opening the partition cabinet 3. The above embodiments are only for illustrating the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. A water replenishing device for a controlled humidity cyclic salt spray corrosion test chamber, characterized in that, The utility model relates to a pure water tank, a separation cabinet and a controller. The pure water tank extends along a first direction and comprises a water storage chamber. The pure water tank is provided with a water supplement port at the top of the side wall on one side along a second direction, which is used for communicating with an external total pure water tank pipeline. The separation cabinet is arranged at the bottom of the pure water tank and is internally provided with a filter device and a self-priming pump.

2. The device of claim 1, wherein, One end of the self-priming pump is in pipeline communication with the water storage chamber, and the other end is in pipeline communication with the experimental tank, which is used for pressurizing and pumping pure water in the water storage chamber into the controllable humidity circulating salt spray corrosion test tank.

3. The device of claim 1, wherein, The filter device comprises a cylinder, a water inlet pipe and a water outlet pipe.

4. The device of claim 1, wherein, The cylinder is internally provided with an activated carbon filter assembly.

5. The device of claim 1, wherein, One end of the water inlet pipe and one end of the water outlet pipe are respectively in communication with the bottom of the cylinder.

6. The water replenishment device according to claims 3 and 4, characterized in that, The other end of the water inlet pipe is in communication with the water storage chamber, and the other end of the water outlet pipe is in communication with the self-priming pump.

7. The device of claim 1, wherein, An electromagnetic valve is arranged at the water supplement port, which is used for shutting off or conducting the water supplement port.

8. The device of claim 1, wherein, A floating ball liquid level sensor is arranged in the pure water tank, which is used for detecting the water level in the pure water tank. A water level display pipe is arranged on the side wall on one side along the second direction of the pure water tank. The water level display pipe extends along the first direction and is in communication with the water storage chamber at both ends. The controller is arranged in the separation cabinet. The floating ball liquid level sensor and the electromagnetic valve are connected with the controller, which is used for driving the electromagnetic valve to be conducted when the floating ball liquid level sensor detects that the water level in the pure water tank is lower than a set value. The water storage tank is made of stainless steel. A switch door is arranged on one side along a third direction of the separation cabinet, which is used for closing or opening the separation cabinet.

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