A device for testing the continuous formaldehyde removal effect of air purification materials

Abstract

The utility model provides a device for testing formaldehyde removal sustained effect of air purification material, including test box, the inside of test box is provided with detection assembly, detection assembly includes air inlet pipe, fixed base, buckle, sliding tube, pressure plate, spring, drive ring, hook, exhaust pipe and reaction tube, fixed base fixedly connected in the outside wall of air inlet pipe. The utility model discloses under the propelling effect of spring, the position of pressure plate is limited to the main body of purification material, at this moment can be into formaldehyde gas to air inlet pipe and carry out detection work, relative to prior art, the utility model discloses the collaborative coordination of sliding tube, spring, pressure plate, reaction tube, hook, buckle etc. structure has replaced traditional flange connection mode, on the basis of ensuring the leakproofness, this design can realize the quick filling or taking out of purification material, and the operation is simple and efficient, thereby the detection efficiency has been improved significantly.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically a device for testing the sustained formaldehyde removal effect of air purification materials, and belongs to the technical field of testing devices. Background Technology

[0002] Testing the sustained formaldehyde removal effectiveness of air purification materials is crucial because formaldehyde, a common indoor pollutant, is released over a long period, often for years or even longer. Focusing solely on the initial formaldehyde removal capacity of a material may overlook its diminishing effectiveness over long-term use due to adsorption saturation and the depletion of active ingredients. Sustained effectiveness testing accurately assesses the material's formaldehyde removal efficiency at different stages, determining whether it can maintain a stable effect in environments with prolonged formaldehyde release. This provides consumers with a basis for choosing truly effective air purification products and offers scientific data support for the industry to develop relevant standards and regulate the market, preventing situations where short-term effectiveness is achieved but long-term use proves ineffective.

[0003] A Chinese utility model patent (publication number: CN218412406U) discloses a device for testing the formaldehyde removal effect of catalytic felt. It uses a reaction device with two glass tubes and a connecting flange to clamp the catalytic felt between the two glass tubes, so that the formaldehyde gas introduced must pass through the test material. By comparing the changes in the values ​​of two formaldehyde sensors in the mixing device and the reaction device, the formaldehyde removal effect of the test material can be detected. The dual sensors ensure the accuracy of the test data. While it achieves the detection of formaldehyde removal effectiveness of the tested materials and utilizes dual sensors to ensure the accuracy of the test data, it presents significant complexities in actual operation. Specifically, the installation of the tested materials employs a flange connection method, which requires multiple bolts for individual fixing. This is not only cumbersome and time-consuming, but more importantly, it prevents the rapid replacement of the tested materials, severely impacting the efficiency of the testing process. Therefore, a device for testing the sustained formaldehyde removal effect of air purification materials is proposed. Utility Model Content

[0004] In view of this, the present invention provides a device for testing the sustained formaldehyde removal effect of air purification materials, so as to solve or alleviate the technical problems existing in the prior art, and at least provide a beneficial option.

[0005] The technical solution of this utility model embodiment is implemented as follows: a device for testing the continuous formaldehyde removal effect of air purification materials includes a test chamber, and the test chamber is provided with a detection component, which includes an air inlet pipe, a fixed base, a buckle, a sliding pipe, a pressure plate, a spring, a drive ring, a hook, an exhaust pipe, and a reaction pipe. The fixed base is fixedly connected to the outer wall of the intake pipe, the buckle is fixedly connected to one side of the fixed base, the sliding tube is slidably connected to the outer wall of the intake pipe, the pressure plate is fixedly connected to one end of the sliding tube, the spring is sleeved on the outer wall of the intake pipe, the drive ring is rotatably connected to the outer wall of the sliding tube, the hook is fixedly connected to the side of the drive ring near the buckle, the reaction tube is fixedly connected to one end of the exhaust pipe, a support mesh is embedded inside the reaction tube, and a purification material body is arranged inside the reaction tube.

[0006] More preferably, the two ends of the spring abut against the sliding tube and the fixed seat respectively, and the shape of the buckle is adapted to the shape of the hook.

[0007] More preferably, the sliding tube and the air intake tube are sealed by a sealing ring.

[0008] More preferably, the pressure plate is slidably connected to the inner wall of the reaction tube, and the pressure plate and the reaction tube are sealed by a sealing ring.

[0009] More preferably, the pressure plate is attached to and presses against one side of the purification material body, while the other side of the purification material body is attached to the support mesh.

[0010] More preferably, formaldehyde concentration sensors are installed inside both the intake pipe and the exhaust pipe.

[0011] More preferably, both the intake pipe and the exhaust pipe are fixedly connected to the inside of the test chamber.

[0012] More preferably, the front surface of the test chamber is equipped with two doors, and a display screen is installed on the front surface of one of the doors.

[0013] The present invention has the following advantages due to the adoption of the above technical solution: This invention involves pulling the drive ring away from the reaction tube, causing the pressure plate to move out of the reaction tube and fix its position. The main body of the purification material is then placed into the reaction tube. Reversing the drive ring causes the hook to move out of the latch, and under the push of the spring, the pressure plate limits the position of the main body of the purification material. At this point, formaldehyde gas can be introduced into the inlet pipe for detection. Compared to existing technologies, this invention replaces the traditional flange connection method through the coordinated operation of the sliding tube, spring, pressure plate, reaction tube, hook, and latch. While ensuring sealing, this design enables rapid loading or removal of the purification material, making operation simple and efficient, thus significantly improving detection efficiency.

[0014] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present invention will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is an overall structural diagram of the present invention; Figure 2 This is a structural diagram of the detection component of this utility model; Figure 3 This is a structural diagram of the fixing base of this utility model; Figure 4 This is a structural diagram of the pressure plate of this utility model; Figure 5 This is a structural diagram of the hook of this utility model; Figure 6 This is a structural diagram of the reaction tube of this utility model.

[0017] Reference numerals: 101, Detection component; 11, Inlet pipe; 12, Fixing base; 13, Buckle; 14, Sliding tube; 15, Pressure plate; 16, Formaldehyde concentration sensor; 17, Spring; 18, Drive ring; 19, Hook; 20, Exhaust pipe; 21, Reaction tube; 23, Support net; 24, Purification material body; 31, Test chamber; 32, Chamber door; 33, Display screen. Detailed Implementation

[0018] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0019] The embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0020] like Figures 1-6As shown, this utility model embodiment provides a device for testing the continuous formaldehyde removal effect of air purification materials, including a test box 31. The test box 31 is equipped with a detection component 101. The detection component 101 includes an air inlet pipe 11, a fixed base 12, a buckle 13, a sliding pipe 14, a pressure plate 15, a spring 17, a drive ring 18, a hook 19, an exhaust pipe 20, and a reaction pipe 21. The fixed base 12 is fixedly connected to the outer wall of the air inlet pipe 11, the buckle 13 is fixedly connected to one side of the fixed base 12, and the sliding tube 14 is slidably connected to the outer wall of the air inlet pipe 11. The sliding tube 14 and the air inlet pipe 11 are sealed by a sealing ring. The air inlet pipe 11 is connected to an external formaldehyde generator for transporting formaldehyde gas. The sliding tube 14 and the air inlet pipe 11 together constitute a formaldehyde transport pipeline. The inner wall of the sliding tube 14 and the outer wall of the air inlet pipe 11 are both fitted with sealing rings to ensure the airtightness between the two and prevent formaldehyde gas leakage. The pressure plate 15 is fixedly connected to one end of the sliding tube 14, and the pressure plate 15 is connected to the sliding tube 14. The reaction tube 21 is fixedly connected to one end of the exhaust pipe 20. A support mesh 23 is embedded inside the reaction tube 21. A purification material body 24 is installed inside the reaction tube 21. The exhaust pipe 20 is used to discharge the filtered gas and is connected to an external waste gas treatment device to prevent waste gas leakage. The pressure plate 15 is slidably connected to the inner wall of the reaction tube 21. The pressure plate 15 and the reaction tube 21 are sealed by a sealing ring. The pressure plate 15 is attached to and presses against one side of the purification material body 24. The other side of the purification material body 24 is attached to the support net 23. The outer wall of the pressure plate 15 is fitted with a sealing ring, thereby ensuring that when the pressure plate 15 is inserted into the reaction tube 21, the formaldehyde gas can flow smoothly along the air inlet pipe 11, the sliding pipe 14, the pressure plate 15, the reaction tube 21 and the exhaust pipe 20, and there is no air leakage in the entire conveying mechanism.

[0021] In one embodiment, the spring 17 is sleeved on the outer wall of the intake pipe 11, the drive ring 18 is rotatably connected to the outer wall of the sliding pipe 14, the hook 19 is fixedly connected to the side of the drive ring 18 near the buckle 13, the two ends of the spring 17 abut against the sliding pipe 14 and the fixed seat 12 respectively, and the shape of the buckle 13 is adapted to the shape of the hook 19. Under the pushing action of spring 17, sliding tube 14 drives pressure plate 15 to continuously insert into the interior of reaction tube 21, thereby limiting the position of purification material body 24 through pressure plate 15. At the same time, support net 23 provides support for the middle part of purification material body 24 to prevent it from deforming under the impact of formaldehyde gas. When it is necessary to remove or place the purification material body 24, pull the drive ring 18 to move away from the reaction tube 21. At this time, the spring 17 is compressed. When the hook 19 moves to the position corresponding to the buckle 13, rotate the drive ring 18 so that the hook 19 is engaged in the buckle 13. At this time, the pressure plate 15 is moved out of the reaction tube 21 and the position is fixed, so that the purification material body 24 can be removed or placed into the reaction tube 21.

[0022] In one embodiment, formaldehyde concentration sensors 16 are installed inside both the air intake pipe 11 and the exhaust pipe 20. The two formaldehyde concentration sensors 16 can detect the formaldehyde concentration values ​​before and after the formaldehyde gas passes through the purification material body 24. By comparing the changes in the values ​​of the two formaldehyde concentration sensors 16, the formaldehyde removal effect of the tested material can be detected, thereby ensuring the accuracy of the test data. Furthermore, by introducing formaldehyde gas for a long time, the continuous formaldehyde removal effect of the purification material can be tested.

[0023] In one embodiment, the air inlet pipe 11 and the exhaust pipe 20 are both fixedly connected to the inside of the test chamber 31. Two doors 32 are installed on the front surface of the test chamber 31. A display screen 33 is installed on the front surface of one door 32. The signal terminal of the formaldehyde concentration sensor 16 is connected to the signal terminal of the display screen 33. The display screen 33 is used to display the values ​​of the two formaldehyde concentration sensors 16 respectively. The model of the formaldehyde concentration sensor 16 is ZE08-CH2O.

[0024] In this utility model, the formaldehyde concentration sensor 16, the display screen 33, the waste gas treatment device and the formaldehyde generator are all existing technologies, so their internal structure, working principle and connection and control methods will not be described in detail.

[0025] In operation: Pulling the drive ring 18 moves it away from the reaction tube 21, compressing the spring 17. When the hook 19 moves to the position corresponding to the latch 13, rotating the drive ring 18 causes the hook 19 to engage with the latch 13. At this point, the pressure plate 15 moves out of the reaction tube 21 and is fixed in position. The purification material body 24 is then placed into the reaction tube 21. Then, the drive ring 18 is reversed, and the hook 19 moves out of the latch 13. Releasing the drive ring 18, the sliding tube 14, under the pushing action of the spring 17, drives the pressure plate 15 to insert into the reaction tube 21. The pressure plate 15 limits the position of the purification material body 24 inside the air inlet pipe 11, and formaldehyde gas is introduced into the air inlet pipe 11. The formaldehyde gas flows through the air inlet pipe 11, sliding pipe 14, pressure plate 15, reaction pipe 21 and exhaust pipe 20. During the flow, it comes into contact with the purification material body 24. Then, the formaldehyde concentration sensor 16 detects the formaldehyde concentration values ​​before and after the formaldehyde gas passes through the purification material body 24 and displays them on the display screen 33. By comparing the changes in the values ​​of the two formaldehyde concentration sensors 16, the formaldehyde removal efficiency of the tested material can be detected. Compared with existing technologies, this utility model replaces the traditional flange connection method through the coordinated operation of structures such as sliding tube 14, spring 17, pressure plate 15, reaction tube 21, hook 19, and buckle 13. While ensuring sealing, this design can realize the rapid filling or removal of purification materials, which is simple and efficient to operate, thus significantly improving the detection efficiency.

[0026] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this utility model, and these should all be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A device for testing the sustained formaldehyde removal effect of air purification materials, comprising a test chamber (31), characterized in that: The test chamber (31) is equipped with a detection component (101), which includes an air inlet pipe (11), a fixed seat (12), a buckle (13), a sliding pipe (14), a pressure plate (15), a spring (17), a drive ring (18), a hook (19), an exhaust pipe (20), and a reaction pipe (21). The fixed base (12) is fixedly connected to the outer wall of the air intake pipe (11), the buckle (13) is fixedly connected to one side of the fixed base (12), the sliding tube (14) is slidably connected to the outer wall of the air intake pipe (11), the pressure plate (15) is fixedly connected to one end of the sliding tube (14), the spring (17) is sleeved on the outer wall of the air intake pipe (11), the drive ring (18) is rotatably connected to the outer wall of the sliding tube (14), the hook (19) is fixedly connected to the side of the drive ring (18) near the buckle (13), the reaction tube (21) is fixedly connected to one end of the exhaust pipe (20), the reaction tube (21) is embedded with a support net (23), and the reaction tube (21) is provided with a purification material body (24).

2. The device for testing the sustained formaldehyde removal effect of air purification materials according to claim 1, characterized in that: The two ends of the spring (17) abut against the sliding tube (14) and the fixed seat (12) respectively, and the shape of the buckle (13) is adapted to the shape of the hook (19).

3. The device for testing the sustained formaldehyde removal effect of air purification materials according to claim 2, characterized in that: The sliding tube (14) and the air intake tube (11) are sealed by a sealing ring.

4. The device for testing the sustained formaldehyde removal effect of air purification materials according to claim 3, characterized in that: The pressure plate (15) is slidably connected to the inner wall of the reaction tube (21), and the pressure plate (15) and the reaction tube (21) are sealed by a sealing ring.

5. The device for testing the sustained formaldehyde removal effect of air purification materials according to claim 4, characterized in that: The pressure plate (15) is attached to and presses against one side of the purification material body (24), and the other side of the purification material body (24) is attached to the support net (23).

6. The device for testing the sustained formaldehyde removal effect of air purification materials according to claim 1, characterized in that: Formaldehyde concentration sensors (16) are installed inside both the intake pipe (11) and the exhaust pipe (20).

7. The apparatus for testing the sustained formaldehyde removal effect of air purification materials according to claim 6, characterized in that: The air intake pipe (11) and the exhaust pipe (20) are both fixedly connected to the inside of the test chamber (31).

8. The apparatus for testing the sustained formaldehyde removal effect of air purification materials according to claim 7, characterized in that: The test chamber (31) has two doors (32) installed on its front surface, and a display screen (33) is installed on the front surface of one of the doors (32).

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