Inlet air filtering structure of constant-temperature and constant-humidity test chamber

Abstract

The utility model discloses an air inlet filtering structure of a constant temperature and humidity test box, which relates to the technical field of air filtration and comprises a box body, a dehumidification filter box is arranged in the box body, one end of the box body is fixedly connected with an air inlet pipe penetrating through the dehumidification filter box to the inside of the dehumidification filter box, and an axial flow fan is mounted on the air inlet pipe. A plurality of discharge control assemblies are fixedly mounted on the side wall of the air inlet pipe; a dehumidification mechanism is arranged on the inner wall of the dehumidification filter box, the dehumidification mechanism is connected with the discharge control assembly, and a partition plate located below the dehumidification mechanism is fixedly connected to the inner wall of the dehumidification filter box; according to the technical scheme provided by the utility model, the air filtering blower is matched with the backwashing pipe for use, so that the filtering system can be automatically cleaned, the requirement of manual maintenance is greatly reduced, and the automation degree and the operation efficiency of equipment are improved. And through the structural arrangement of the discharge control assembly on the side wall of the air inlet pipe and the arc-shaped backwashing pipe, the overall performance and the energy utilization efficiency of the system are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air filtration, in particular to an air inlet filtration structure of a constant temperature and humidity test chamber. Background Art

[0002] Constant temperature and humidity test chambers are widely used in multiple fields such as material aging tests, biological cultivation, and drug stability evaluations. The core lies in maintaining a stable temperature and humidity environment to simulate different climatic conditions. However, in practical applications, pollutants in the external air, such as dust, microorganisms, and water vapor, may have an adverse impact on test results. Traditional constant temperature and humidity test chambers usually adopt simple filters and dehumidification devices. This configuration often fails to effectively handle large particulate matter carried in the air under high humidity environments and cannot flexibly adjust the dehumidification efficiency to meet different experimental requirements.

[0003] Most existing filtration systems have the following problems:

[0004] The process of replacing or cleaning the filter and dehumidification components is complex, consuming time and manpower. The lack of an effective backwashing mechanism makes it easy for impurities to accumulate inside the system after long-term operation, affecting air quality. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to overcome the deficiencies of the prior art and provide an air inlet filtration structure of a constant temperature and humidity test chamber to solve the problems in the background art.

[0006] In view of this, the utility model provides an air inlet filtration structure of a constant temperature and humidity test chamber, including a box body. A dehumidification and filtration box is arranged inside the box body. One end of the box body is fixedly connected with an air inlet pipe that penetrates through the dehumidification and filtration box to the inside of the dehumidification and filtration box. An axial flow fan is installed on the air inlet pipe, and the end of the air inlet pipe is in a closed state. A plurality of control and discharge components are fixedly installed on the side wall of the air inlet pipe;

[0007] A dehumidification mechanism is arranged on the inner wall of the dehumidification and filtration box, and the dehumidification mechanism is connected with the control and discharge components. A partition is fixedly connected to the inner wall of the dehumidification and filtration box below the dehumidification mechanism. A second air pipe is fixedly installed on the partition. One end of the second air pipe is fixedly installed with a particle filtration box with an internal metal filter screen. The output end of the particle filtration box is fixedly installed with an exhaust pipe. A third valve is fixedly installed on the exhaust pipe. An air filtration blower is fixedly installed on one side inside the box body. The output end of the air filtration blower is fixedly installed with a backwashing pipe, and one end of the backwashing pipe is fixedly installed on the side wall of the exhaust pipe and is communicated with it. A flushing and discharge pipe is fixedly installed on the outer wall of the second air pipe, and a fifth valve is fixedly installed on the flushing and discharge pipe. A fourth valve is fixedly installed on the backwashing pipe,

[0008] Preferably, the dehumidifying mechanism includes a mounting frame, a dehumidifying drawer, and a dehumidifying layer. The mounting frame is fixedly connected to the inner wall of the dehumidifying and filtering box. The dehumidifying drawer of the dehumidifying and filtering box is slidably connected in the mounting frame, and the dehumidifying layer is laid on the bottom of the dehumidifying drawer.

[0009] Preferably, one end of the outer wall of the dehumidifying drawer is fixedly connected with a moving handle.

[0010] Preferably, the control discharge assembly includes a first air pipe and a first valve. The first air pipe is fixedly connected to and communicated with the side wall of the air inlet pipe, and the first valve is fixedly installed on the first air pipe. The other end of the first air pipe is fixedly installed on the top of the mounting frame.

[0011] Preferably, the end of the backwashing pipe connected to the exhaust pipe adopts an arc structure.

[0012] Preferably, a second valve is fixedly installed on the second air pipe.

[0013] Preferably, a box door is fixedly installed on the outer wall of the box body through a hinge.

[0014] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0015] 1. For the air inlet filtering structure of the constant temperature and humidity test chamber of the present invention, by using the air filtering blower in cooperation with the backwashing pipe, the filtering system can be automatically cleaned, greatly reducing the need for manual maintenance, improving the automation degree and operation efficiency of the equipment. Moreover, the structural settings of the control discharge assembly on the side wall of the air inlet pipe and the arc-shaped backwashing pipe reduce the resistance of air flow, improving the overall performance of the system and the energy utilization efficiency.

[0016] 2. For the air inlet filtering structure of the constant temperature and humidity test chamber of the present invention, by integrating the dehumidifying drawer and the particle filtering box, the moisture and various particles in the air can be effectively removed, significantly improving the purity and stability of the environment inside the test chamber. At the same time, the design of the dehumidifying drawer facilitates the quick replacement or cleaning of the dehumidifying layer, and the backwashing mechanism allows for regular automatic cleaning inside the system, reducing the need for manual intervention and extending the service life of the equipment.

[0017] These features and advantages of the present invention will be disclosed in detail in the following specific embodiments and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present invention with reference to the drawings:

[0019] Figure 1 is a schematic structural diagram of the present invention;

[0020] Figure 2 This is a schematic cross-sectional structure diagram of the present utility model;

[0021] Figure 3 This is a schematic structure diagram of the dehumidification mechanism of the present utility model;

[0022] Figure 4 This is a schematic internal structure diagram of the dehumidification mechanism of the present utility model.

[0023] Explanation of reference numerals: 1, box body; 2, dehumidification and filtration box; 3, intake pipe; 41, first air delivery pipe; 42, first valve; 51, mounting rack; 52, dehumidification drawer; 53, dehumidification layer; 54, moving handle; 6, partition board; 7, second air delivery pipe; 71, second valve; 8, particle filtration box; 9, exhaust pipe; 91, third valve; 10, air filtration blower; 11, backwashing pipe; 110, fourth valve; 12, flushing and discharge pipe; 121, fifth valve; 13, box door; 14, axial flow fan. Specific implementation manners

[0024] The technical solutions of the embodiments of the present utility model will be explained and described below with reference to the accompanying drawings of the embodiments of the present utility model. However, the following embodiments are only the preferred embodiments of the present utility model and not all of them. Based on the embodiments in the implementation manners, other embodiments obtained by those skilled in the art without creative efforts all fall within the protection scope of the present utility model.

[0025] The intake air filtration structure of a constant temperature and humidity test chamber according to an embodiment of the present utility model will be specifically described below with reference to the accompanying drawings.

[0026] Embodiment

[0027] For ease of understanding, please refer to Figures 1 to 4 An embodiment of the intake air filtration structure of a constant temperature and humidity test chamber provided by the present utility model, including a box body 1, a dehumidification and filtration box 2 is arranged inside the box body 1, an intake pipe 3 fixedly connected to one end of the box body 1 and penetrating through the dehumidification and filtration box 2 to the inside of the dehumidification and filtration box 2 is provided, an axial flow fan 14 is installed on the intake pipe 3, and the end of the intake pipe 3 is in a closed state, and a plurality of control and discharge components are fixedly installed on the side wall of the intake pipe 3;

[0028] The inner wall of the dehumidification and filtration box 2 is provided with a dehumidification mechanism, and the dehumidification mechanism is connected to the control and discharge assembly. A partition 6 is fixedly connected to the inner wall of the dehumidification and filtration box 2 and is located below the dehumidification mechanism. A second air pipe 7 is fixedly installed on the partition 6. One end of the second air pipe 7 is fixedly installed with a particle filtration box 8 with a built-in metal filter screen. The output end of the particle filtration box 8 is fixedly installed with an exhaust pipe 9. A third valve 91 is fixedly installed on the exhaust pipe 9. On one side inside the box body 1, an air filtration blower 10 is fixedly installed. The output end of the air filtration blower 10 is fixedly installed with a backwash pipe 11, and one end of the backwash pipe 11 is fixedly installed on the side wall of the exhaust pipe 9 and is communicated with it. A flushing and discharge pipe 12 is fixedly installed on the outer wall of the second air pipe 7, and a fifth valve 121 is fixedly installed on the flushing and discharge pipe 12. A fourth valve 110 is fixedly installed on the backwash pipe 11.

[0029] It should be noted that the installed axial flow fan 14 is used to introduce air into the thermostatic and humidistatic test chamber. The dehumidification and filtration box 2 is built inside the box body 1 and is used to process the incoming air for dehumidification and filtration. One end of the air inlet pipe 3 is fixedly connected to the box body 1, the other end is closed, and a plurality of control and discharge assemblies are installed on the side wall for controlling the discharge of gas. The particle filtration box 8 contains a metal filter screen for filtering particulate matter in the air.

[0030] The backwash pipe 11 is connected to the output end of the air filtration blower 10 and is used to perform reverse flushing and cleaning on the particle filtration box 8. It is communicated with the side wall of the exhaust pipe 9. The fourth valve 110 is used to control the backwash process. The flushing and discharge pipe 12 extends from the second air pipe 7 and is used to discharge the waste gas during the flushing process. The fifth valve 121 controls the discharge. The air filtration blower 10 provides air flow power to facilitate air flushing treatment.

[0031] In an optional embodiment: The dehumidification mechanism includes a mounting frame 51, a dehumidification drawer 52, and a dehumidification layer 53. The mounting frame 51 is fixedly connected to the inner wall of the dehumidification and filtration box 2. The dehumidification drawer 52 of the dehumidification and filtration box 2 is slidably connected in the mounting frame 51. The dehumidification layer 53 is laid on the bottom of the dehumidification drawer 52. One end of the outer wall of the dehumidification drawer 52 is fixedly connected with a moving handle 54.

[0032] It should be noted that the mounting frame 51 is fixed to the inner wall of the dehumidification and filtration box 2 and is used to support the dehumidification drawer 52. The dehumidification drawer 52 is slidably connected to the mounting frame 51, which is convenient for cleaning and replacing the dehumidification layer 53. The dehumidification layer 53 is laid on the bottom of the dehumidification drawer 52 and is used to absorb moisture in the air. The moving handle 54 is fixed to the outer wall of the dehumidification drawer 52, which is convenient for the operator to take out or push in the drawer.

[0033] Among them, the structure of the dehumidification drawer 52 is arranged such that the dehumidification layer 53 can be conveniently replaced or cleaned to maintain the dehumidification effect.

[0034] In an alternative embodiment: The control discharge assembly includes a first air duct 41 and a first valve 42. The first air duct 41 is fixedly connected to and communicates with the side wall of the intake duct 3, and the first valve 42 is fixedly installed on the first air duct 41. The other end of the first air duct 41 is fixedly installed on the top of the mounting frame 51.

[0035] It should be noted that the control discharge assembly includes a first air duct 41 and a first valve 42, and the first valve 42 is used to control the opening and closing of the first air duct 41.

[0036] In an alternative embodiment: One end of the backwash pipe 11 connected to the exhaust pipe 9 adopts an arc structure.

[0037] It should be noted that the connection between the backwash pipe 11 and the exhaust pipe 9 is arranged in an arc shape to reduce the pressure loss during flushing and improve the cleaning efficiency.

[0038] In an alternative embodiment: A second valve 71 is fixedly installed on the second air duct 7.

[0039] In an alternative embodiment: A door 13 is fixedly installed on the outer wall of the box body 1 through a hinge.

[0040] It should be noted that the hinge design of the door 13 ensures the sealing performance of the box body 1 and is convenient for maintaining and inspecting the internal components.

[0041] Working principle: External air is introduced into the thermostatic and humidistatic test chamber through the intake duct 3. The end of the intake duct 3 is in a closed state, so the air must enter through the control discharge assembly on the side wall. After the air enters the dehumidification and filtration box 2, it first undergoes humidity adjustment through the dehumidification mechanism. The dehumidification mechanism consists of a mounting frame 51, a dehumidification drawer 52, and a dehumidification layer 53. Among them, the dehumidification layer 53 can adsorb moisture in the air to achieve the purpose of dehumidification. The control discharge assembly includes a first air duct 41 and a first valve 42. The first valve 42 can be opened or closed to control the air flow rate, thereby affecting the dehumidification effect and the humidity level inside the box body 1. The dehumidified air continues to flow downward, passes through the partition 6, and enters the particle filtration box 8 through the second air duct 7. In the particle filtration box 8, the built-in metal filter screen further removes particulate matter in the air to ensure the purity of the internal environment of the test chamber. The purified air is discharged through the exhaust pipe 9, and the third valve 91 on the exhaust pipe 9 controls the discharge process. In order to maintain the air circulation inside the box body 1, a part of the purified air will be re-sucked through the backwash pipe 11 and sent back into the box body 1 through the air filtration blower 10 again.

[0042] When the filtration system needs to be cleaned, the airflow generated by the air filtration blower 10 reversely flushes the filtration system through the backwash pipe 11 to remove the accumulated impurities. The backwash pipe 11 is communicated with the side wall of the exhaust pipe 9, and its connection end adopts an arc structure, which helps to improve the flushing efficiency. The fourth valve 110 controls the backwash process to ensure the operation safety. The waste gas generated during the flushing process is discharged through the flushing discharge pipe 12, and the fifth valve 121 controls the discharge timing and flow rate.

[0043] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than limiting them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An air inlet filtration structure for a constant temperature and humidity test chamber, characterized in that: The invention comprises a box body (1), wherein a dehumidification filter box (2) is arranged inside the box body (1), an air intake pipe (3) penetrating the dehumidification filter box (2) to the inside of the dehumidification filter box (2) is fixedly connected to one end of the box body (1), an axial flow fan (14) is installed on the air intake pipe (3), and the end of the air intake pipe (3) is in a closed state, and a plurality of emission control components are fixedly installed on the side wall of the air intake pipe (3); The inner wall of the dehumidification filter box (2) is provided with a dehumidification mechanism, and the dehumidification mechanism is connected to the control emission assembly. The inner wall of the dehumidification filter box (2) is fixedly connected to a partition (6) located below the dehumidification mechanism, and a second air supply pipe (7) is fixedly installed on the partition (6). A particle filter box (8) with a built-in metal filter is fixedly installed at one end of the second air supply pipe (7). An exhaust pipe (9) is fixedly installed at the output end of the particle filter box (8), and a third valve (91) is fixedly installed on the exhaust pipe (9). ), an air filter blower (10) is fixedly mounted on one side of the interior of the box body (1), a backwash pipe (11) is fixedly mounted on the output end of the air filter blower (10), and one end of the backwash pipe (11) is fixedly mounted on the side wall of the exhaust pipe (9) and is connected thereto, a flushing discharge pipe (12) is fixedly mounted on the outer wall of the second air supply pipe (7), and a fifth valve (121) is fixedly mounted on the flushing discharge pipe (12), and a fourth valve (110) is fixedly mounted on the backwash pipe (11).

2. The air inlet filtration structure of a constant temperature and humidity test chamber according to claim 1, characterized in that: The dehumidification mechanism comprises a mounting frame (51), a dehumidification drawer (52) and a dehumidification layer (53); the mounting frame (51) is fixedly connected to the inner wall of the dehumidification filter box (2); the dehumidification drawer (52) of the dehumidification filter box (2) is slidably connected in the mounting frame (51); and the dehumidification layer (53) is laid on the bottom of the dehumidification drawer (52).

3. The air inlet filtration structure of a constant temperature and humidity test chamber according to claim 2, characterized in that: A movable handle (54) is fixedly connected to one end of the outer wall of the dehumidification drawer (52).

4. The air inlet filtration structure of a constant temperature and humidity test chamber according to claim 2, characterized in that: The emission control assembly comprises a first air delivery pipe (41) and a first valve (42); the first air delivery pipe (41) is fixedly connected to a side wall of an air intake pipe (3) and communicated therewith, and the first valve (42) is fixedly mounted on the first air delivery pipe (41); the other end of the first air delivery pipe (41) is fixedly mounted on the top of a mounting frame (51).

5. The air inlet filtration structure of a constant temperature and humidity test chamber according to claim 1, characterized in that: The end of the backwash pipe (11) connected to the exhaust pipe (9) has an arc structure.

6. The air inlet filtration structure of a constant temperature and humidity test chamber according to claim 1, characterized in that: A second valve (71) is fixedly mounted on the second gas delivery pipe (7).

7. The air inlet filtration structure of a constant temperature and humidity test chamber according to claim 1, characterized in that: A box door (13) is fixedly mounted on the outer wall of the box body (1) via a hinge.

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