Ventilation equipment for chemical product production

Abstract

The utility model relates to ventilation equipment for chemical product production, which comprises a shell, two groups of fixing rods are arranged on one side of a connecting plate, and fixing holes matched with the fixing rods are formed in two groups of fixing blocks, so that a constructor can conveniently assemble and disassemble a mounting plate and conveniently clean a filter screen in the later period; a mounting ring is arranged on the air conveying pipe, a supporting rod is arranged in the mounting ring, valve blades are rotationally arranged on the two sides of the supporting rod, and a convex ring is arranged on the inner side of the mounting ring, so that air backflow can be effectively prevented, it can be ensured that exhausted waste gas is stably exhausted out of a room, indoor air is kept fresh, and the comfort of the working environment and the production efficiency are improved; and multiple sets of fastening bolts are arranged on the outer pipe in a threaded connection mode, fastening plates are rotationally arranged at the bottom ends of the multiple sets of fastening bolts, the sealing performance of the pipeline is improved, the sealing performance of a pipeline connecting port is greatly improved, and the possibility of gas leakage is effectively reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production, in particular to ventilation equipment for chemical product production. Background Art

[0002] In the production process of chemical products, ventilation equipment is very important. They are used to control and regulate the air flow in the production area, maintain good indoor air quality, and remove harmful gases and steam. At present, most ventilation devices are designed as an integral structure, which makes it inconvenient for construction workers to install and remove the filter. In this case, the filter is exposed to the environment for a long time, and dust and impurities are easily accumulated on the surface, which affects the ventilation effect of the ventilation device. When the ventilation system is working, sometimes air flows back from the exhaust port to the room, resulting in a decrease in indoor air quality, and may even affect the safety and comfort of the production process or working environment. If harmful gases cannot be discharged in time, it may cause indoor air pollution and even cause safety accidents, posing a threat to personnel health and production safety. Traditional chemical ventilation ducts often have the problem of poor sealing of the duct interface, which may lead to the leakage of harmful gases, increasing the possibility of safety risks and environmental pollution. Due to unreasonable design of the duct interface or poor construction quality, the sealing of the duct interface cannot reach the ideal level, which is prone to gas leakage. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides a ventilation device for chemical product production.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a ventilation device for chemical product production, comprising an outer shell, an air duct is arranged in the outer shell, a mounting frame is arranged in the outer shell, a mounting plate is inserted in the mounting frame, two layers of filter screens are arranged on the mounting plate, two groups of fixing blocks are arranged on the outer side of the mounting plate, a telescopic cylinder is arranged on one side of the mounting frame, a connecting plate is connected to the telescopic end of the telescopic cylinder, two groups of fixing rods are arranged on one side of the connecting plate, fixing holes matching with the fixing rods are opened on the two groups of fixing blocks, a connecting plate is arranged on one side of the outer shell, a connecting pipe is arranged on the connecting plate, a mounting ring is arranged on the air duct, a support rod is arranged in the mounting ring, valve leaves are rotatably arranged on both sides of the support rod, and a convex ring is arranged on the inner side of the mounting ring.

[0007] Preferably, an outer tube is provided on one side of the connecting plate, and a plurality of groups of fastening bolts are threadedly connected on the outer tube, and fastening plates are rotatably provided at the bottom ends of the plurality of groups of fastening bolts, and a plurality of groups of limit rods are provided on the top surfaces of the plurality of groups of fastening plates and are slidably connected to the outer tube, so that the sealing structure formed by the connecting ring and the inside of the pipeline is tighter, thereby improving the sealing effect and maintaining the safe and reliable operation of the system.

[0008] It is further preferred that two groups of positioning tubes are provided in the mounting frame, and positioning rods are provided on one side of the two groups of fixing blocks and are inserted into the positioning tubes, so that the installation process of the mounting plate is more accurate and stable, and the possibility of installation errors is reduced.

[0009] It is further preferred that the mounting frame is provided with two sets of slide rails on one side of the connecting plate and is slidably connected to the connecting plate, so as to facilitate adjustment of the mounting position and ensure accuracy and adaptability of the equipment installation.

[0010] It is further preferred that the contact surfaces between the plurality of groups of the fastening plates and the ducts are all provided with rubber pads, so as to prevent the fastening plates from causing damage to the outer wall of the exhaust duct.

[0011] It is further preferred that a handle is provided between the two groups of fixing blocks to improve the flexibility and adaptability of operation.

[0012] In a further preferred embodiment, an activated carbon layer is provided between the two groups of filter screens, thereby improving the filtering effect and purifying the air in the ventilation system.

[0013] In a further preferred embodiment, an elastic ring is provided on the outer wall of the connecting pipe to make the connecting pipe and the inside of the exhaust duct closer.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a ventilation device for chemical product production, which has the following beneficial effects:

[0016] 1. The utility model provides a mounting frame, a mounting plate, a fixing block, a telescopic cylinder, a connecting plate and a fixing rod, so that construction workers can conveniently assemble and disassemble the mounting plate, and clean the filter screen at a later stage. Regular cleaning of the filter screen can reduce the blockage and damage of dust and impurities to the ventilation device, extend the service life of the equipment, and reduce the cost of maintenance and replacement;

[0017] 2. The utility model can effectively prevent air backflow by arranging the mounting ring, the support rod, the valve leaf and the convex ring to ensure that the exhaust gas is stably discharged to the outside, thereby keeping the indoor air fresh, improving the comfort of the working environment and production efficiency, reducing the risk of safety accidents in the workplace, and ensuring the health and safety of workers;

[0018] 3. In the utility model, the sealing of the pipeline is enhanced by arranging the connecting pipe, the outer pipe, the fastening bolts, the fastening plate and the limit rod, so that the sealing performance of the pipeline connection interface is greatly improved, the possibility of gas leakage is effectively reduced, the risk of safety accidents in the workplace is reduced, and the health and safety of workers are guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a ventilation device for chemical product production in the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the housing in the utility model;

[0021] Figure 3 This is a cross-sectional view of the internal structure of the mounting frame in the utility model;

[0022] Figure 4 This is a structural cross-sectional view of the filter screen installed on the plate in the utility model;

[0023] Figure 5 This is a schematic diagram of the installation structure of the valve leaf in the utility model;

[0024] Figure 6 It is a schematic diagram of the installation structure of the fastening bolts and the fastening plate in the utility model.

[0025] In the figure: 1. outer shell; 2. air supply pipe; 3. mounting frame; 4. mounting plate; 5. filter screen; 6. fixing block; 7. telescopic cylinder; 8. connecting plate; 9. fixing rod; 10. fixing hole; 11. connecting plate; 12. connecting pipe; 13. mounting ring; 14. support rod; 15. valve leaf; 16. convex ring; 17. outer tube; 18. fastening bolt; 19. fastening plate; 20. limit rod; 21. positioning cylinder; 22. positioning rod; 23. slide rail; 24. rubber pad; 25. handle; 26. activated carbon layer; 27. elastic ring. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example:

[0028] See also Figure 1-6A ventilation device for chemical product production comprises a shell 1, an air duct 2 is arranged in the shell 1, a mounting frame 3 is arranged in the shell 1, a mounting plate 4 is inserted in the mounting frame 3, two layers of filter screens 5 are arranged on the mounting plate 4, two groups of fixing blocks 6 are arranged on the outer side of the mounting plate 4, a telescopic cylinder 7 is arranged on one side of the mounting frame 3, a connecting plate 8 is connected to the telescopic end of the telescopic cylinder 7, two groups of fixing rods 9 are arranged on one side of the connecting plate 8, fixing holes 10 adapted to the fixing rods 9 are opened on the two groups of fixing blocks 6, a connecting plate 11 is arranged on one side of the shell 1, a connecting pipe 12 is arranged on the connecting plate 11, a mounting ring 13 is arranged on the air duct 2, a support rod 14 is arranged in the mounting ring 13, valve leaves 15 are rotatably arranged on both sides of the support rod 14, and a convex ring 16 is arranged on the inner side of the mounting ring 13.

[0029] In this embodiment, an outer tube 17 is provided on one side of the connecting plate 11, and a plurality of sets of fastening bolts 18 are threadedly connected on the outer tube 17. Fastening plates 19 are rotatably provided at the bottom ends of the plurality of sets of fastening bolts 18. A plurality of sets of limit rods 20 are provided on the top surfaces of the plurality of sets of fastening plates 19 and are slidably connected to the outer tube 17. The connecting tube 12 is inserted into the external exhaust duct, and the plurality of sets of fastening bolts 18 are rotated so that the fastening plates 19 at the bottom thereof are fastened and clamped to the outer wall of the exhaust duct, so that the sealing structure formed by the connecting ring and the inside of the duct is tighter, thereby improving the sealing effect and maintaining the safe and reliable operation of the system.

[0030] In this embodiment, two groups of positioning cylinders 21 are provided in the mounting frame 3, and positioning rods 22 are provided on one side of the two groups of fixing blocks 6 and are inserted into the positioning cylinders 21. The design of the positioning cylinders 21 and the positioning rods 22 can ensure the accurate positioning of the mounting plate 4, making the installation process of the mounting plate 4 more precise and stable, and reducing the possibility of installation errors.

[0031] In this embodiment, the mounting frame 3 is provided with two sets of slide rails 23 on one side of the connecting plate 8 and is slidably connected to the connecting plate 8. The design of the slide rails 23 enables the connecting plate 8 to slide easily on the mounting frame 3, thereby facilitating adjustment of the installation position and ensuring the accuracy and adaptability of the equipment installation.

[0032] In this embodiment, rubber pads 24 are provided on the contact surfaces between the plurality of sets of fastening plates 19 and the ducts. The rubber pads 24 can prevent the fastening plates 19 from causing damage to the outer wall of the exhaust duct.

[0033] In this embodiment, a handle 25 is provided between the two groups of fixing blocks 6. The provision of the handle 25 allows the operator to more flexibly control and move the mounting plate 4 to meet the needs of different working scenes, thereby improving the flexibility and adaptability of the operation.

[0034] In this embodiment, an activated carbon layer 26 is provided between the two groups of filter screens 5. The activated carbon layer 26 has a strong adsorption capacity and can effectively adsorb organic gases, odors and pollutants in the air, thereby improving the filtering effect and purifying the air in the ventilation system.

[0035] In this embodiment, an elastic ring 27 is provided on the outer wall of the connecting pipe 12. The elastic ring 27 is elastically deformed to generate elastic force so that the elastic ring 27 is tilted and pressed against the inner wall of the exhaust duct, so that the connecting pipe 12 is more tightly connected to the inside of the exhaust duct.

[0036] Embodiment 2:

[0037] In summary, when in use, the connecting pipe 12 is inserted into the external exhaust duct, and the elastic ring 27 undergoes elastic deformation to generate elastic force so that the elastic ring 27 is tilted and squeezed on the inner wall of the exhaust duct, so that the connecting pipe 12 and the inside of the exhaust duct are tighter, and the multiple sets of fastening bolts 18 are rotated so that the fastening plates 19 at the bottom thereof are fastened and clamped to the outer wall of the exhaust duct, and the exhausted air is discharged through the air supply pipe 2, and the harmful substances in the air are filtered through the filter screen 5 and the activated carbon layer 26. When the air flows back in the air supply pipe 2, the valve leaf 15 will rotate inwardly with the thrust of the wind, and the convex ring 16 can block the valve leaf 15, so that the valve leaf 15 and the mounting ring 13 form a closed space, and the air backflow is prohibited. When cleaning, open the housing 1, operate the telescopic cylinder 7 to retract its telescopic end, drive the connecting plate 8 to slide along the slide rail 23, so that the fixing rod 9 is pulled out of the fixing hole 10, pull the handle 25, pull the mounting plate 4 out of the mounting frame 3, and then the filter screen 5 can be disassembled. When installing, align the positioning rod 22 on the fixing block 6 with the positioning cylinder 21 and plug them in. The design of the positioning cylinder 21 and the positioning rod 22 can ensure the accurate positioning of the mounting plate 4, making the installation process of the mounting plate 4 more accurate and stable. When operating the telescopic cylinder 7, its telescopic end pushes the connecting plate 8 to slide along the slide rail 23, and pushes the fixing rod 9 to be plugged into the fixing hole 10, so that the mounting plate 4 can be installed and fixed.

[0038] In all the schemes mentioned above, the connection between two parts can be selected according to actual conditions by welding, bolt and nut matching connection, bolt or screw connection or other well-known connection methods, which are not described one by one here. In the above, all fixed connections are preferably welded. Although the embodiments of the utility model have been shown and described, it can be understood by ordinary technicians in this field that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the utility model. The scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A ventilation device for chemical product production, comprising a housing (1), characterized in that: An air delivery pipe (2) is provided in the shell (1), a mounting frame (3) is provided in the shell (1), a mounting plate (4) is inserted in the mounting frame (3), two layers of filter screens (5) are provided on the mounting plate (4), two groups of fixing blocks (6) are provided on the outside of the mounting plate (4), a telescopic cylinder (7) is provided on one side of the mounting frame (3), a connecting plate (8) is connected to the telescopic end of the telescopic cylinder (7), and two groups of fixing rods ( 9), both groups of the fixing blocks (6) are provided with fixing holes (10) adapted to the fixing rods (9), one side of the housing (1) is provided with a connecting plate (11), the connecting plate (11) is provided with a connecting pipe (12), the air supply pipe (2) is provided with a mounting ring (13), a support rod (14) is provided inside the mounting ring (13), valve leaves (15) are rotatably provided on both sides of the support rod (14), and a convex ring (16) is provided inside the mounting ring (13).

2. A ventilation device for chemical product production according to claim 1, characterized in that: An outer tube (17) is provided on one side of the connecting plate (11), and a plurality of sets of fastening bolts (18) are threadedly connected on the outer tube (17), and fastening plates (19) are rotatably provided at the bottom ends of the plurality of sets of fastening bolts (18), and a plurality of sets of limiting rods (20) are provided on the top surfaces of the plurality of sets of fastening plates (19) and are slidably connected to the outer tube (17).

3. A ventilation device for chemical product production according to claim 1, characterized in that: Two groups of positioning tubes (21) are arranged in the mounting frame (3), and one side of the two groups of fixing blocks (6) is provided with positioning rods (22) which are inserted into the positioning tubes (21).

4. A ventilation device for chemical product production according to claim 1, characterized in that: The mounting frame (3) is located on one side of the connecting plate (8) and is provided with two sets of slide rails (23) and is slidably connected to the connecting plate (8).

5. A ventilation device for chemical product production according to claim 2, characterized in that: The contact surfaces between the plurality of groups of fastening plates (19) and the pipelines are all provided with rubber pads (24).

6. A ventilation device for chemical product production according to claim 1, characterized in that: A handle (25) is provided between the two groups of fixing blocks (6).

7. A ventilation device for chemical product production according to claim 1, characterized in that: An activated carbon layer (26) is provided between the two groups of filter screens (5).

8. A ventilation device for chemical product production according to claim 2, characterized in that: An elastic ring (27) is provided on the outer wall of the connecting pipe (12).

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