CN219532864U

CN219532864U - Air-mixing acetic acid test box

Info

Publication number: CN219532864U
Application number: CN202320191749.3U
Authority: CN
Inventors: 陈玲琳; 田永丰
Original assignee: Shanghai Ruiqi Measurement And Control Technology Co ltd
Current assignee: Shanghai Ruiqi Measurement And Control Technology Co ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-08-15
Anticipated expiration: 2033-06-09

Abstract

The utility model provides an air mixing type acetic acid test box, wherein a box body inner container is arranged in the box body, a solution box is arranged in the box body inner container, and a sample rack is arranged at the upper part of the solution box; the air inlet of the air blower unit is communicated with the inside of the inner container of the box body, and the inner container of the box body is provided with an air return port which is communicated with an air inlet channel of the heating device; at least one layer of air distribution baffle plate is arranged in the inner container of the box, the air distribution baffle plate is provided with a uniformly distributed multi-mesh structure, and the air distribution baffle plate is arranged below an air outlet of the air machine set; the refrigerating unit is arranged outside the inner container of the box; the heating device, the fan unit, the refrigerating unit and the temperature and humidity sensor are all connected with the PLC control module through cables and used for adjusting the temperature of the inner container of the box body. The temperature and the acetic acid concentration are regulated and controlled by air duct convection, and the circulating air duct is combined with the partition plate, so that the uniformity of the acetic acid concentration in the closed box body is effectively controlled, and the acetic acid test result is more fit with the effect of the acid corrosion environment in the real nature.

Description

Air-mixing acetic acid test box

Technical Field

The utility model relates to the field of acetic acid test boxes, in particular to a wind-mixing type acetic acid test box.

Background

Part of the products are often influenced by corrosion of acid environments such as acetic acid in the using or placing process, so that the acetic acid corrosion test is carried out before the products are put in, and the research on the corrosion aging mechanism under the acid environments and the optimization of material selection are of great significance. The existing acetic acid test equipment is provided with a solution tank, and the solution in the solution tank is sprayed onto a sample through a spray nozzle in a pneumatic pressurizing mode to manufacture an acidic corrosion environment.

The current test mode is difficult to ensure that the acetic acid keeps the same concentration at each position point, the acid corrosion degree of the corroded sample is not uniform, the condition that the corrosion degree of a single certain position of the sample is far greater than that of other positions occurs, and the control means for other environmental factors such as temperature are lacked, so that the natural acid corrosion environment cannot be well simulated.

Disclosure of Invention

The utility model provides a wind mixing type acetic acid test box, which aims to overcome the defects that in the prior art, acetic acid solution is difficult to keep uniform concentration of each point, a temperature control means is lacked, test precision is low and the like.

In order to solve the technical problems, the air-mixing acetic acid test box provided by the utility model comprises a box body, wherein a box body inner container is arranged in the box body, a solution box is arranged in the box body inner container, and a sample rack is arranged at the upper part of the solution box;

the hot air system comprises a heating device, a hot air outlet of the heating device is connected with an air inlet of a ventilator unit, an air outlet of the ventilator unit is communicated with the inside of the box body inner container, and an air return inlet is arranged in the box body inner container and is communicated with an air inlet channel of the heating device;

at least one layer of air distribution partition plate is arranged in the inner container of the box and is provided with a uniformly distributed multi-mesh structure, and the air distribution partition plate is arranged below an air outlet of the fan set;

the refrigerating unit comprises a compressor, an evaporator, a condenser and an expansion valve which are connected with each other to form a refrigerating circuit and are arranged outside the inner container of the box;

the control system comprises a PLC control module and a temperature and humidity sensor arranged in the inner container of the box body, wherein the heating device, the fan unit, the refrigerating unit and the temperature and humidity sensor are connected with the PLC control module through cables, and are used for adjusting the temperature of the inner container of the box body.

Preferably, the inner container of the box body is provided with at least one first water outlet and one second water outlet, the first water outlet is communicated with the inner container of the box body and the water drainage channel, and the second water outlet is communicated with the solution box and the liquid drainage channel.

Preferably, guide rails are arranged on two sides of the inner container of the box body, the guide rails are buckle type stainless steel guide rails, and the sample rack and the air distribution partition plate are arranged on the guide rails.

Preferably, the sample frame is a stainless steel hollowed-out flat plate, and the air distribution baffle is a stainless steel mesh flat plate.

Preferably, the fan set comprises an impeller type fan, the impeller type fan is electrically communicated with the motor, an air outlet of the fan set is arranged at the top of the inner container of the box body and is provided with a rectangular opening, and a plurality of adjustable inclined grid sheets are arranged between the rectangular opening and the air distribution partition plate.

Preferably, the heating device is arranged below the fan set, the return air inlet is close to one side of the heating device, the return air inlet is a rectangular opening, and the rectangular opening is provided with a grid sheet.

Compared with the related art, the wind-mixing acetic acid test box provided by the utility model has the following beneficial effects:

the utility model has the advantages that the whole box body is sealed, the fan is arranged at the top of the box, the baffle plate is arranged below the fan, the air outlet holes are uniformly distributed on the baffle plate, the baffle plate uniformly blows air discharged by the fan to the sample area through the air outlet holes, the temperature and the acetic acid concentration are homogenized through a mode of homogenizing air flow by the baffle plate, the defect that the acetic acid concentration is unevenly distributed in space due to acetic acid spraying by the traditional acetic acid box is effectively avoided, the temperature and the acetic acid concentration are regulated and controlled through convection of the air duct through the heat management system, and the uniformity of the acetic acid concentration in the closed box body is effectively controlled through the combination of the circulating air duct and the baffle plate, so that the acetic acid test result is more fit with the effect of the acid corrosion environment in the real nature.

Drawings

FIG. 1 is a schematic side view of a perspective internal structure of the present utility model;

FIG. 2 is a schematic forward view of the perspective internal structure of the present utility model;

reference numerals in the drawings:

1. the device comprises a box body, 2, a box body inner container, 3, a partition board, 4, a fan, 5, a solution box, 6, a refrigerating unit, 7, a guide rail, 8, a sample frame, 9, a motor, 10, a heating device, 11, an air outlet, 12 and an air return opening.

Detailed Description

The utility model will be further described with reference to the drawings and embodiments.

Referring to fig. 1 and 2, a wind-mixing acetic acid test box comprises a box body 1, a box body liner 2, a partition plate 3, a fan 4, a solution box 5, a temperature control unit and a control system. The bottom of the box body 1 is provided with a refrigerating unit 6, the middle part of the box body 1 is provided with a box body liner 2, and the box body liner 2 is provided with a first water outlet and a second water outlet; the bottom of the box body liner 2 is provided with a solution box 5, the solution box 5 is used for containing acetic acid solution, and the solution box 5 is provided with a third water outlet; the left and right sides of the box body liner 2 are provided with guide rails 7, the guide rails 7 can be used for installing a sample frame 8 and a partition plate 3, and the sample frame 8 is used for placing samples. The top of the box body 1 is provided with a motor 9, a cable hole is arranged below the motor 9, the lower part of the motor 9 is provided with an air outlet 11, the inner side of the air outlet 11 is provided with a fan 4, and a heating device 10 is arranged right below the fan 4 and close to the middle of the box body 1. The refrigerating unit 6 provides refrigerating capacity, the heating device 10 provides heating capacity, the heating device 10, the fan 4, the air outlet 11, the partition plate 3 and the air return 12 form a complete air channel loop, and the temperature and acetic acid concentration uniformity in the test box are regulated through uniform air flow.

According to the air mixing type acetic acid test box, hot air generated by the heating device 10 is induced to the air outlet 11 through the air suction fan 4, the air outlet 11 is provided with the grid plates with adjustable directions, the air is blown onto the partition plate 3, the air is blown out through the uniform small holes distributed on the partition plate 3, and returns to the position of the heating device 10 through the air return opening 12 after being blown to the bottom, and a complete air homogenizing circulation loop is formed in the inner container 2 of the box body, so that homogenized air flow achieves the effects of homogenizing acetic acid concentration and temperature. The refrigerating unit 6 mainly comprises a compressor, an evaporator, a condenser and an expansion valve, is mutually connected to form a refrigerating circuit and then is arranged at the bottom of the box body 1, the refrigerating unit 6 is externally connected with a metal frame and is fixed by nuts, and the metal frame is fixed at the bottom of the box body 1 by nuts. The heating device 10 and the refrigerating unit 6 form a temperature control unit, and the cold quantity and heat are fed back to a control system through a sensor, so that the dynamic balance achieves the effect of adjusting the temperature.

According to the air mixing type acetic acid box, the inner container 2 of the box body is made of stainless steel, the inner container 2 of the box body is welded in the box body by adopting a full-welding process, one side, close to the heating device 10, of the inner container 2 of the box body is provided with the air return opening 12, the air return opening 12 is a rectangular opening, and grid sheets are arranged. The first water outlet and the second water outlet are formed in the inner container 2 of the box body, one end of the first water outlet is flush with the inner container of the box body, and the other end of the first water outlet is connected to the bottom of the box body downwards to play a role in discharging accumulated water in the box body after a test; one end of the second water outlet is higher than the inner container 2 of the box body and is connected with the solution box 5, the other end of the second water outlet is connected to the bottom of the box body 1, the second water outlet can be sealed by a silica gel plug during test, and the silica gel plug can be pulled out to discharge waste liquid after test. The solution box 5 is used for containing the prepared acetic acid solution, and the temperature is raised to accelerate the volatilization of the acetic acid. The two sides of the box body liner 2 are provided with guide rails 7, and the guide rails 7 are bayonet stainless steel guide rails and can be used for placing a sample rack 8 and a partition plate 3. The sample frame 8 is a stainless steel hollowed-out flat plate, and is placed at a guide rail bayonet with a certain height above the solution box 5 to be clamped for holding a sample. The baffle plate 3 is a stainless steel mesh plate, and is clamped at the bayonet of the guide rail 7 arranged below the air outlet 11 for guiding out uniform air flow. The air outlet 11 is a rectangular opening in the vertical direction, and a plurality of adjustable inclined grid sheets are arranged to guide air flow to the partition plate. The impeller type fan is arranged on the inner side of the air outlet, and the air exhausting and supplying functions are achieved. And a cable hole is formed below the motor 9, and the motor 9 is connected with the fan 4 through a cable to supply power to the fan 4. The solution box 5 containing acetic acid is separated by the baffle plate 3 with uniformly distributed small holes, stable air flow is driven by the fan 4 to blow to the baffle plate 3, and the air flow can not rapidly pass through the baffle plate 3 and is accumulated on one side of the baffle plate 3, so that the air flow can uniformly flow to the sample only through the small holes on the baffle plate 3, and the air flow can only uniformly flow out from the small holes when reaching the bottom sample frame, thereby realizing the functions of homogenizing concentration and temperature.

The control system mainly comprises a control PLC module, electronic components, a temperature and humidity sensor and a touch screen, wherein the PLC is a programming core, the PLC module and the electronic components are fixed on an aluminum alloy control panel at the back of the box body through bayonets, the temperature and humidity sensor is arranged on the opposite side of the air outlet 11 and is also connected to the PLC, and temperature and humidity conditions in the box body are fed back. The touch screen is arranged outside the box body 1 and is connected with the PLC control module through a cable. The temperature control unit and the fan are also connected to the PLC module through cables. The cooperation of the components can realize the specific test parameters such as the set temperature value, the test time, the wind speed and the like of the touch screen.

According to the embodiment, the temperature and the acetic acid concentration are homogenized in a mode of homogenizing air flow by the baffle, the defect that acetic acid concentration is unevenly distributed in space due to acetic acid spraying of a traditional acetic acid box is effectively avoided, the temperature and the acetic acid concentration are regulated and controlled through convection of an air duct by the aid of the heat management system, and the uniformity of the acetic acid concentration in the sealed box is effectively controlled by combining the circulating air duct with the baffle, so that an acetic acid test result is more fit with an acid corrosion environment effect in the real nature.

The foregoing description is only illustrative of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present utility model.

Claims

1. A wind mixes formula acetic acid test box, its characterized in that: the device comprises a box body, wherein a box body liner is arranged in the box body, a solution box is arranged in the box body liner, and a sample rack is arranged at the upper part of the solution box;

2. The air-mixing acetic acid test chamber according to claim 1, wherein the chamber body is provided with at least one first water outlet and a second water outlet, the first water outlet is communicated with the chamber body and the water drainage channel, and the second water outlet is communicated with the solution box and the water drainage channel.

3. The air-mixing acetic acid test box according to claim 1, wherein guide rails are arranged on two sides of an inner container of the box body, the guide rails are buckle-type stainless steel guide rails, and the sample rack and the air distribution partition plate are arranged on the guide rails.

4. The air-mixing acetic acid test box according to claim 1, wherein the sample rack is a stainless steel hollowed-out plate, and the air distribution partition plate is a stainless steel mesh plate.

5. The air-mixing acetic acid test box according to claim 1, wherein the fan set comprises an impeller fan, the impeller fan is electrically connected with a motor, an air outlet of the fan set is arranged at the top of an inner container of the box and is provided with a rectangular opening, and a plurality of adjustable inclined grid sheets are arranged between the rectangular opening and the air distribution partition plate.

6. The air-mixing acetic acid test box according to claim 1, wherein the heating device is arranged below the fan set, the return air inlet is close to one side of the heating device, the return air inlet is a rectangular opening, and the rectangular opening is provided with a grid sheet.