Direct expansion type air handling unit with adjustable air output

Abstract

The utility model relates to the field of air treatment, and provides a direct expansion type air treatment unit with adjustable air supply volume, which comprises supports, a shell is arranged at the top end of each support, a dismounting structure is arranged in each shell, and each dismounting structure comprises a first sliding block, a baffle block, a spring, an external pipe, an internal pipe and a second sliding block, and the outer walls of the first sliding blocks are arranged in the shell, check blocks are arranged in the first sliding blocks, springs are fixed to one sides of the check blocks, and external pipes are arranged in the middles of the springs. By arranging the dismounting and mounting structure, pressing the second sliding block, recycling the stop block, pulling the second sliding block and driving the filtering structure to be arranged outside the shell, the filtering structure is convenient to clean and replace, meanwhile, the interior of the shell can be overhauled, the device has the functions that the filtering layer is convenient to dismount and mount, and overhauling is convenient; and the convenience of the direct expansion type air handling unit is improved.

Description

Technical Field

[0001] The utility model relates to the field of air treatment, in particular to a direct expansion air treatment unit with adjustable air supply volume. Background Art

[0002] The direct expansion air handling unit is a highly efficient air handling device that installs the refrigeration system of the refrigeration system directly inside the air handling unit. It directly cools and dehumidifies the air passing through the unit through evaporation and heat absorption in the evaporator of the refrigerator, and then delivers the treated air to the required space.

[0003] This device is widely used in industrial, household and medical fields. It will filter the air during use and can filter out pollutants such as particulate matter, viruses, bacteria, etc. in the air. After long-term use, dust and impurities will accumulate in the filter layer, which will affect the air purification effect if not cleaned in time. However, the filter layer is not easy to disassemble and replace, and cleaning the filter layer causes great inconvenience. Utility Model Content

[0004] The utility model aims to provide a direct expansion air handling unit with adjustable air supply volume, so as to solve the defect of inconvenient disassembly and assembly of the filter layer of the existing direct expansion air handling unit.

[0005] In order to solve the above technical problems, the present utility model provides the following technical solutions: a direct expansion air handling unit with adjustable air supply volume, comprising a bracket;

[0006] A shell is installed on the top of each bracket, and a cover plate is installed on the top of each shell;

[0007] The interior of the housing is provided with a disassembly structure, which includes a first slider, a stopper, a spring, an external tube, an internal tube, and a second slider. The outer wall of the first slider is provided inside the housing, the interior of the first slider is provided with a stopper, one side of the stopper is fixed with a spring, the middle position of the spring is provided with an external tube, the interior of the external tube is provided with an internal tube, and the exterior of the stopper inside the first slider is provided with a second slider;

[0008] A filter structure is fixed on the opposite side of the first sliding block, a refrigeration system is installed inside the shell, and a fan is installed outside the refrigeration system inside the shell.

[0009] Preferably, the brackets are distributed at equal intervals, and the shell and the cover plate are connected by bolts.

[0010] Preferably, the first sliding block is slidably connected to the stop block, and the side of the spring away from the stop block is fixedly connected to the first sliding block.

[0011] Preferably, the spring is slidably connected to the external tube, and the external tube is fixedly connected to the stopper.

[0012] Preferably, the external tube is slidably connected to the internal tube, and a side of the internal tube away from the external tube is fixedly connected to the inner wall of the first sliding block.

[0013] Preferably, the second sliding block is not connected to the stopper, and the second sliding block is slidably connected to the first sliding block.

[0014] Preferably, the filter structure includes an outer frame, a first filter layer, a second filter layer and a third filter layer. The outer wall of the outer frame is fixed to the side opposite to the first slider, the inner wall of the outer frame is pasted with the first filter layer, the second filter layer is provided on one side of the first filter layer, and the third filter layer is pasted on one side of the second filter layer.

[0015] Preferably, the inner wall of the outer frame is connected to the outer wall of the second filter layer by adhesive bonding, the inner wall of the outer frame is connected to the outer wall of the third filter layer by adhesive bonding, and the first filter layer is in a mesh shape.

[0016] The utility model provides a direct expansion air handling unit with adjustable air supply volume, which has the following advantages:

[0017] By providing a disassembly and assembly structure, pressing the second slider retracts the block, and pulling the second slider drives the filter structure to be placed outside the housing, making it easy to clean and replace the filter structure, while also allowing for maintenance inside the housing. This device has the functions of convenient disassembly and assembly of the filter layer and easy maintenance, thereby improving the convenience of the direct expansion air handling unit.

[0018] By providing a filtering structure, the outer frame has good supporting performance. The first filter layer can filter dust and large particles in the air, the second filter layer can filter small particles in the air, and the third filter layer has good adsorption performance. It can adsorb fine particles in the air and also adsorb odors in the air. By adjusting the operating speed of the fan, the air volume of the device can be adjusted, thereby realizing the function of the device having good filtering and regulating refrigeration effects, and realizing the practicality of the direct expansion air handling unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional schematic diagram from the first perspective of the present invention;

[0020] Figure 2 This is a three-dimensional exploded schematic diagram of the disassembly and assembly structure of the utility model;

[0021] Figure 3 It is a partial three-dimensional schematic diagram of the utility model;

[0022] Figure 4This is a three-dimensional exploded schematic diagram of the filtering structure of the utility model;

[0023] Figure 5 This is a three-dimensional schematic diagram of the second viewing angle of the present invention.

[0024] Explanation of the reference numerals in the figure: 1. Bracket; 2. Shell; 3. Cover; 4. Disassembly and assembly structure; 401. First slider; 402. Stop block; 403. Spring; 404. External tube; 405. Internal tube; 406. Second slider; 5. Filter structure; 501. Outer frame; 502. First filter layer; 503. Second filter layer; 504. Third filter layer; 6. Refrigeration system; 7. Fan. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 5 The utility model provides a direct expansion air handling unit with adjustable air supply volume, including a bracket 1.

[0027] Reference Figure 2 and Figure 3 As shown, the top of the bracket 1 is installed with a shell 2, the top of the shell 2 is installed with a cover plate 3, the brackets 1 are distributed at equal intervals, the shell 2 and the cover plate 3 are connected by bolts, and the interior of the shell 2 is provided with a disassembly structure 4, the disassembly structure 4 includes a first slider 401, a stopper 402, a spring 403, an external tube 404, an internal tube 405 and a second slider 406, the outer wall of the first slider 401 is arranged inside the shell 2, the interior of the first slider 401 is provided with a stopper 402, a spring 403 is fixed to one side of the stopper 402, an external tube 404 is provided in the middle position of the spring 403, and the interior of the external tube 404 is provided with a An internal tube 405 is provided, and a second slider 406 is provided outside the internal block 402 of the first slider 401. The first slider 401 is slidably connected to the block 402, and the side of the spring 403 away from the block 402 is fixedly connected to the first slider 401. The spring 403 is slidably connected to the external tube 404, and the external tube 404 is fixedly connected to the block 402. The external tube 404 is slidably connected to the internal tube 405, and the side of the internal tube 405 away from the external tube 404 is fixedly connected to the inner wall of the first slider 401. The second slider 406 is in conflict with the block 402 and is not connected. The second slider 406 is slidably connected to the first slider 401.

[0028] Press the second slider 406 to retract the stopper 402, and pull the second slider 406 to drive the filter structure 5 to be placed outside the shell 2, so as to facilitate cleaning and replacement of the filter structure 5. At the same time, the interior of the shell 2 can be inspected, thereby realizing the function of convenient disassembly and assembly of the filter layer and easy maintenance of the device.

[0029] Reference Figure 3 and Figure 4 As shown, a filter structure 5 is fixed on the side opposite to the first slider 401, and the filter structure 5 includes an outer frame 501, a first filter layer 502, a second filter layer 503 and a third filter layer 504. The outer walls of the outer frame 501 are fixed to the side opposite to the first slider 401, the inner wall of the outer frame 501 is pasted with the first filter layer 502, the second filter layer 503 is provided on one side of the first filter layer 502, and the third filter layer 504 is pasted on one side of the second filter layer 503. The inner wall of the outer frame 501 is pasted and connected to the outer wall of the second filter layer 503, and the inner wall of the outer frame 501 is pasted and connected to the outer wall of the third filter layer 504. The first filter layer 502 is mesh-shaped, and a refrigeration system 6 is installed inside the shell 2, and a fan 7 is installed outside the refrigeration system 6 inside the shell 2.

[0030] The outer frame 501 has good supporting performance, the first filter layer 502 can filter dust and large particles in the air, the second filter layer 503 can filter small particles in the air, and the third filter layer 504 has good adsorption performance, which can adsorb fine particles in the air and also adsorb odors in the air.

[0031] In summary, if Figure 1-Figure 5As shown, the direct expansion air handling unit is used by pressing the second slider 406, and the second slider 406 drives the stopper 402 to slide inside the first slider 401. When the stopper 402 is under pressure, the spring 403 is retracted, and the internal tube 405 is driven to slide inside the external tube 404. The internal tube 405 and the external tube 404 play a role of limiting, preventing the movement trajectory of the stopper 402 from deviating when sliding inside the first slider 401. After the external tube 404 is completely moved to the inside of the first slider 401, the second slider 406 is pulled to drive the outer frame 501 to be placed outside the shell 2, so that the filter structure 5 can be cleaned or replaced. The outer frame 501 is convenient for cleaning or replacing the filter structure 5. 1 is a metal layer, the first filter layer 502 is a fiber layer, and the second filter layer 503 is an activated carbon adsorption layer, which purifies impurities and odors in the air. After resetting it, start the external power supply, and the fan 7 accelerates the air outside the shell 2 through the filter structure 5 and the refrigeration system 6 to be discharged to the outside of the shell 2. The refrigeration system 6 is equipped with a refrigerant, which is compressed into a high-temperature and high-pressure gas in the compressor and then enters the evaporator. In the evaporator, the refrigerant exchanges heat with the indoor air. By adjusting the operating speed of the fan 7, the air circulation speed can be increased or decreased, thereby adjusting the air supply and air outlet of the direct expansion air handling unit.

[0032] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A direct expansion air handling unit with adjustable air supply volume, comprising a bracket (1); Its characteristics are: The top end of each of the brackets (1) is provided with a housing (2), and the top end of each of the housings (2) is provided with a cover plate (3); The housing (2) is provided with a disassembly structure (4), the disassembly structure (4) comprising a first slider (401), a stopper (402), a spring (403), an external tube (404), an internal tube (405) and a second slider (406); the outer wall of the first slider (401) is provided inside the housing (2); the stopper (402) is provided inside the first slider (401); a spring (403) is fixed on one side of the stopper (402); an external tube (404) is provided in the middle of the spring (403); an internal tube (405) is provided inside the external tube (404); and a second slider (406) is provided outside the stopper (402) inside the first slider (401); A filter structure (5) is fixed on the opposite side of the first slider (401), a refrigeration system (6) is installed inside the shell (2), and a fan (7) is installed outside the refrigeration system (6) inside the shell (2).

2. A direct expansion air handling unit with adjustable air supply volume according to claim 1, characterized in that: The brackets (1) are distributed at equal intervals, and the shell (2) and the cover plate (3) are connected by bolts.

3. The direct expansion air handling unit with adjustable air supply volume according to claim 1, characterized in that: The first sliding block (401) is slidably connected to the stop block (402), and the side of the spring (403) away from the stop block (402) is fixedly connected to the first sliding block (401).

4. The direct expansion air handling unit with adjustable air supply volume according to claim 1, characterized in that: The spring (403) is slidably connected to the external tube (404), and the external tube (404) is fixedly connected to the stopper (402).

5. The direct expansion air handling unit with adjustable air supply volume according to claim 1, characterized in that: The external tube (404) is slidably connected to the internal tube (405), and the side of the internal tube (405) away from the external tube (404) is fixedly connected to the inner wall of the first sliding block (401).

6. The direct expansion air handling unit with adjustable air supply volume according to claim 1, characterized in that: The second slider (406) is not connected to the stopper (402) and the second slider (406) is connected to the first slider (401) in a sliding manner.

7. The direct expansion air handling unit with adjustable air supply volume according to claim 1, characterized in that: The filtering structure (5) comprises an outer frame (501), a first filtering layer (502), a second filtering layer (503) and a third filtering layer (504); the outer wall of the outer frame (501) is fixed to the side opposite to the first slider (401); the first filtering layer (502) is adhered to the inner wall of the outer frame (501); the second filtering layer (503) is provided on one side of the first filtering layer (502); and the third filtering layer (504) is adhered to one side of the second filtering layer (503).

8. The direct expansion air handling unit with adjustable air supply volume according to claim 7, characterized in that: The inner wall of the outer frame (501) is glued and connected to the outer wall of the second filter layer (503), and the inner wall of the outer frame (501) is glued and connected to the outer wall of the third filter layer (504). The first filter layer (502) is in a mesh shape.

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